WO2021254438A1 - 驱动控制方法及相关设备 - Google Patents
驱动控制方法及相关设备 Download PDFInfo
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- WO2021254438A1 WO2021254438A1 PCT/CN2021/100630 CN2021100630W WO2021254438A1 WO 2021254438 A1 WO2021254438 A1 WO 2021254438A1 CN 2021100630 W CN2021100630 W CN 2021100630W WO 2021254438 A1 WO2021254438 A1 WO 2021254438A1
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- touch
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3262—Power saving in digitizer or tablet
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3265—Power saving in display device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/04—Partial updating of the display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
- G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time
Definitions
- This application relates to the field of drive control, and in particular to a drive control method and related equipment.
- the processing of the image data displayed in the partitions and the various driving, power supply, data transmission and other tasks related to the display panel are still in the same way as the image display of a complete area, namely The image data of the entire display panel will be processed and transmitted together.
- the control modules of the display panel related functions such as display and touch control must also work together. Therefore, in the above-mentioned use scene where a part of the display area displays an image and a part of the display area does not display an image, the existing processing method is generally to output a black image to the part of the display area where the image is not displayed, resulting in a visual experience of not displaying the image. .
- the embodiment of the present application provides a driving control method and related equipment for a display panel with different display areas.
- time-sharing driving control By performing time-sharing driving control on pixel scanning circuits corresponding to different display areas, so that in a scenario where a part of the display area does not need to display an image, There may be some time for the pixel scanning circuit to not work, thereby saving the power consumption required by the pixel scanning circuit to scan the pixels in this period of time.
- the method provided by the embodiments of the present application also performs time-sharing drive control on the touch scanning circuit and fingerprint scanning circuit corresponding to different display areas, and also uses independent power supply for the pixels in different display areas, and also controls some of the functions of the display driver.
- the time-sharing is enabled, which further saves the power consumption required for various tasks in the scene where the image does not need to be displayed in part of the display area.
- an embodiment of the present application provides a display module including a display panel and a display driver; the display panel includes a first pixel scanning circuit and a second pixel scanning circuit, and the first pixel scanning circuit is used for The pixels in the first area of the display panel are driven to convert electrical signals into optical signals, and the second pixel scanning circuit is used to drive the pixels in the second area of the display panel to convert electrical signals into optical signals.
- the first pixel scanning circuit and the second pixel scanning circuit can be independently controlled, and the two circuits are electrically separated from each other. For example, when the first pixel scanning circuit works, the second pixel scanning circuit may not work, and the two will not affect each other.
- the display driver is used to generate different display driving signals in different time periods, wherein the first display driving signal can trigger the operation of the first pixel scanning circuit, and the second display driving signal can trigger the operation of the second pixel scanning circuit.
- Different display drive signals can be generated at different time periods to control the first pixel scanning circuit and the second pixel scanning circuit to work in different time periods, that is, to control the operation of the first pixel scanning circuit and the second pixel scanning circuit. Working hours.
- the display panel includes two different display areas, and the pixels in the two display areas are scanned and driven by two independent pixel scanning circuits. Since the two pixel scanning circuits are independently controllable, the display The driver can independently control the operation or non-operation of the two pixel scanning circuits in different time periods. Based on this, in an implementation scenario where the first area of the display panel needs to display an image, but the second area does not need to display an image, the display driver can control the second pixel scanning circuit corresponding to the second area to not work during a certain period of time, thereby As a result, the second pixel scanning circuit does not need to scan and drive pixels in the second area during this period of time. Compared with the prior art original scheme of scanning and driving full-screen pixels in a full-period and full-area, the second pixel scanning circuit can be saved for a period of time. Power consumption required for work.
- the display driver is specifically configured to output a first display driving signal and a second display driving signal, and the first display driving signal controls the first pixel scanning circuit to operate in the first time period.
- the second display driving signal controls the second pixel scanning circuit to be in the working state in the second period of time to drive the pixels in the first area, the first The time period and the second time period cycle periodically.
- the cycle period may be one frame, that is, the first time period and the second time period are polled every frame.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period In the second time period, the second pixel scanning circuit is controlled to work, so that when different display areas need to display images, the display control is performed by time-sharing and partitioned driving.
- the display driver is further configured to not output the second display driving signal in the second time period in a specific time period, and the first time period in the specific time period And the second period of time cycles periodically.
- the specific time period refers to the period of time during which a part of the display area needs to be re-displayed or the display re-display is required. Specifically, it may be a period of time when the electronic device is in a state where the first area needs to display an image but the second area does not need to display an image.
- the specific time period can be entered when the electronic device changes from full-screen display to the display requirement that the second area does not need to display images.
- the display driver learns that the electronic device does not need to display images from the second area, it needs to display images.
- the specific time period can be ended. Further, the manner in which the display driver learns the display requirements of the above-mentioned different regions may be obtained by receiving instruction information sent by the processor.
- the display driver is further configured to not output the second display driving signal in the second time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the second display driving signal is output in a second time period.
- the display driver is further configured to respond to an instruction to stop the screen in the second area, and stop outputting the second display drive signal during the second time period during the screen stop time in the second area .
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the second pixel scanning circuit is controlled to not work (that is, the second display driving signal is not output), so that the second area does not need to display images, which can save the second pixel scanning circuit in the second time period.
- the power consumption required to drive the pixels in the second area is not be controlled to not work (that is, the second display driving signal is not output).
- the display driver is further configured to output the first display driving signal in both the first time period and the second time period within a specific time period, and the specific The first time period and the second time period cyclically cycle within the time period.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the first pixel scanning circuit is still controlled to work so that the second area does not need to display images, and the power consumption originally used to scan the pixels in the second area is used for multiple refresh scans.
- Pixels in one area that is, pixels in the first area that are scanned once in a frame
- the pixels in the first area can be scanned twice, thereby increasing the display scanning frequency of the first area and improving the display picture of the first area. Quality, to provide a better experience for games and other scenes.
- the display driver is further configured to provide pixel data signals to the display panel, and send the pixel data signals in both the first time period and the second time period, and the first time period The segment and the second time period cycle periodically, and the pixel data signal is used to indicate content displayed by the pixels in the display panel.
- the display driver is further configured to send a pixel data signal to the display panel in a first time period in a specific time period, and not to send a pixel data signal in a second time period, so
- the pixel data signal is used to indicate the content displayed by the pixels in the display panel, and the pixel data signal cooperates with the scanning of the pixel scanning circuit to finally present the displayed content.
- the first time period and the second time period periodically cycle within the specific time period.
- the display driver allocates corresponding time resources for sending the pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not send The pixel data signal can thereby save the power consumption of sending the pixel data signal in the second time period.
- the display driver is configured to generate a pixel data signal in the first time period in a specific time period, and not generate a pixel data signal in the second time period, and the specific time period The first time period and the second time period periodically cycle within a time period.
- the display driver allocates corresponding time resources for the generation of pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not generate The pixel data signal can thereby save power consumption for processing and generating the pixel data signal in the second time period.
- the display driver is configured to receive the image data of the display panel sent by the processor, receive the image data of the first area in a first time period, and receive the image data in the second time period.
- the image data of the second area the image data being used to generate a pixel data signal indicating the content displayed by the pixels in the display panel.
- the display driver is configured to receive the image data of the display panel sent by the processor in a first time period in a specific time period, and not to receive and process the image data in the second time period.
- the first time period and the second time period periodically cycle within the specific time period for the image data of the display panel sent by the device.
- the display driver allocates corresponding time resources for the reception of image data corresponding to the first area and the second area.
- the second time period display driver module may not receive processing.
- the image data sent by the device can save the power consumption of receiving image data in the second time period.
- the embodiments of the present application provide a processor, which is configured to obtain the display requirements of different areas of the display, and determine the time resources for sending image data of different areas to the display driver according to the display requirements.
- the time resource includes a first time period and a second time period, and the first time period and the second time period periodically cycle.
- the cycle period can be one frame, that is, the first time period and the second time period are polled every frame; the display requirement is used to indicate whether different areas need to display images.
- the processor can allocate different time resources to send image data of different regions according to the display requirements of different regions, so that the time-sharing control of the image data transmission function of different display regions can be realized. Based on this, in an implementation scenario where an image needs to be displayed in the first area of the display panel, but the second area does not need to display an image, the processor can send image data in the first time period and not send image data in the second time period, and then Compared with the prior art original scheme of sending image data at all times, the power consumption required for image data transmission in the second time period can be saved.
- the processor is further configured to send image data of the first area of the display to the display driver during the first time period, and send the image data to the display driver during the second time period.
- the display driver sends the image data of the second area of the display, wherein the first time period corresponds to the time for the display driver to drive the first area of the display, and the second time period corresponds to the display driver to drive the The time of the second area of the display.
- the processor allocates corresponding time resources for the image data transmission corresponding to the first area and the second area, that is, the first time period and the second time period, so that when different display areas need to display images, you can use Display control in a time-sharing partition drive mode.
- the processor is further configured to send image data of the first area of the display to the display driver during the first time period, and not send the image data to the display driver during the second time period.
- the display driver sends the image data of the second area of the display, wherein the first time period corresponds to the time when the display driver drives the first area of the display, and the second time period corresponds to the display driver driving the first area of the display. The time of the second area of the display.
- the processor allocates corresponding time resources for the image data transmission corresponding to the first area and the second area, that is, the first time period and the second time period, and sends the first time period of the display to the display driver during the first time period. If the image data of one area is not sent to the display driver in the second time, so that the second area does not need to display images, the processor can save the image data sent to the display driver in the second time period. The power consumption required for the data.
- the processor is further configured to send first instruction information to at least one of a display driver, a power supply, a touch driver, and a fingerprint sensor driver, and the first instruction information is used to indicate all Describes the display requirements of different areas of the display.
- the processor learns the display requirements of different regions, it can notify at least one of the display driver, power supply, touch driver, and fingerprint sensor driver, so that the above-mentioned modules can also correspond to the display requirements of different regions. Carry out time-sharing partition drive control to save more power consumption.
- the processor is further configured to obtain and determine the display requirements of different areas of the display according to the state of the electronic device.
- the state of the electronic device can be a folded state or an unfolded state, a one-handed operation state or a normal operation state, a curved display state or a non-curved display state, etc.
- the processor can determine the display requirements of different areas of the display in this state according to the different states of the electronic device, thereby adjusting the transmission mode of its own image data, and can further instruct other modules to adjust the drive control mode to save power. Consumption.
- an embodiment of the present application provides an electronic device, which is characterized in that it includes a display and a processor;
- the display includes a display panel and a display driver
- the display panel includes a first pixel scanning circuit and a second pixel scanning circuit.
- the first pixel scanning circuit is used to drive pixels in a first area of the display panel to convert electrical signals into optical signals.
- the pixel scanning circuit is used to drive pixels in the second area of the display panel to convert electrical signals into optical signals;
- the display driver is configured to generate different display driving signals to control the working time periods of the first pixel scanning circuit and the second pixel scanning circuit respectively;
- the processor is configured to obtain the display requirements of different areas of the display, and determine the time resources for sending image data of different areas to the display driver according to the display requirements, wherein the time resources include a first time period and a second time period, so The first time period and the second time period cyclically cycle.
- the display panel includes two different display areas, and the pixels in the two display areas are scanned and driven by two independent pixel scanning circuits. Since the two pixel scanning circuits are independently controllable, the display The driver can independently control the operation or non-operation of the two pixel scanning circuits in different time periods.
- the processor can allocate different time resources to send image data of different areas according to the display requirements of different areas, so as to realize the time-sharing control of the image data transmission function of different display areas.
- the display driver can control the second pixel scanning circuit corresponding to the second area to not work during a certain period of time, thereby As a result, the second pixel scanning circuit does not need to scan and drive pixels in the second area during this period of time.
- the second pixel scanning circuit can be saved for a period of time. Power consumption required for work.
- the processor can send image data in the first time period and not send image data in the second time period. Compared with the prior art original scheme of sending image data all the time, the processor can save image data transmission work in the second time period. Power consumption.
- the display driver is specifically configured to output a first display driving signal and a second display driving signal, and the first display driving signal controls the first pixel scanning circuit to operate in the first time period.
- the second display driving signal controls the second pixel scanning circuit to be in the working state in the second period of time to drive the pixels in the first area, the first The time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the second pixel scanning circuit is controlled to work, so that when different display areas need to display images, the display control is performed by time-sharing and partitioned driving.
- the display driver is specifically configured to output a first display driving signal and a second display driving signal, and the first display driving signal controls the first pixel scanning circuit to operate in the first time period.
- the second display driving signal controls the second pixel scanning circuit to be in the working state in the second period of time to drive the pixels in the first area, the first The time period and the second time period cycle periodically.
- the cycle period may be one frame, that is, the first time period and the second time period are polled every frame.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period In the second time period, the second pixel scanning circuit is controlled to work, so that when different display areas need to display images, the display control is performed by time-sharing and partitioned driving.
- the display driver is further configured to not output the second display driving signal in the second time period in a specific time period, and the first time period in the specific time period And the second period of time cycles periodically.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display images but the second area does not need to display images.
- the specific time period can be entered when the display demand is met, and the specific time period can be ended when the display driver learns that the electronic device changes from a situation in which the second area does not need to display images to other display demands.
- the manner in which the display driver learns the display requirements of the above-mentioned different regions may be obtained by receiving instruction information sent by the processor.
- the display driver is further configured to not output the second display driving signal in the second time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the second display driving signal is output in a second time period.
- the display driver is further configured to respond to an instruction to stop the screen in the second area, and stop outputting the second display drive signal during the second time period during the screen stop time in the second area .
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the second pixel scanning circuit is controlled to not work (that is, the second display driving signal is not output), so that the second area does not need to display images, which can save the second pixel scanning circuit in the second time period.
- the power consumption required to drive the pixels in the second area is not be controlled to not work (that is, the second display driving signal is not output).
- the display driver is further configured to output the first display driving signal in both the first time period and the second time period within a specific time period, and the specific The first time period and the second time period cyclically cycle within the time period.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the first pixel scanning circuit is still controlled to work so that the second area does not need to display images, and the power consumption originally used to scan the pixels in the second area is used for multiple refresh scans.
- Pixels in one area that is, pixels in the first area that are scanned once in a frame
- the pixels in the first area can be scanned twice, thereby increasing the display scanning frequency of the first area and improving the display picture of the first area. Quality, to provide a better experience for games and other scenes.
- the display driver is further configured to provide pixel data signal signals to the display panel, and send the pixel data signal signals in both the first time period and the second time period, and the second time period A period of time and the second period of time cycle periodically, and the pixel data signal signal is used to indicate content displayed by the pixels in the display panel.
- the display driver is further configured to send a pixel data signal to the display panel in a first time period in a specific time period, and not to send a pixel data signal in a second time period, so
- the pixel data signal is used to indicate the content displayed by the pixels in the display panel, and the pixel data signal cooperates with the scanning of the pixel scanning circuit to finally present the displayed content.
- the first time period and the second time period periodically cycle within the specific time period.
- the display driver allocates corresponding time resources for sending the pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not send The pixel data signal can thereby save the power consumption of sending the pixel data signal in the second time period.
- the display driver is configured to generate a pixel data signal in the first time period in a specific time period, and not generate a pixel data signal in the second time period, and the specific time period The first time period and the second time period periodically cycle within a time period.
- the display driver allocates corresponding time resources for the generation of pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not generate The pixel data signal can thereby save power consumption for processing and generating the pixel data signal in the second time period.
- the display driver is configured to receive the image data of the display panel sent by the processor, receive the image data of the first area in a first time period, and receive the image data in the second time period.
- the image data of the second area the image data being used to generate a pixel data signal signal indicating the content displayed by the pixel in the display panel.
- the display driver is configured to receive the image data of the display panel sent by the processor in a first time period in a specific time period, and not to receive and process the image data in the second time period.
- the first time period and the second time period periodically cycle within the specific time period for the image data of the display panel sent by the device.
- the display driver allocates corresponding time resources for the reception of image data corresponding to the first area and the second area.
- the second time period display driver module may not receive processing.
- the image data sent by the device can save the power consumption of receiving image data in the second time period.
- the processor is further configured to send image data of the first area of the display to the display driver during the first time period, and send the image data to the display driver during the second time period.
- the display driver sends the image data of the second area of the display, wherein the first time period corresponds to the time for the display driver to drive the first area of the display, and the second time period corresponds to the display driver to drive the The time of the second area of the display.
- the processor allocates corresponding time resources for the image data transmission corresponding to the first area and the second area, that is, the first time period and the second time period, so that when different display areas need to display images, you can use Display control in a time-sharing partition drive mode.
- the processor is further configured to send image data of the first area of the display to the display driver during the first time period, and not send the image data to the display driver during the second time period.
- the display driver sends the image data of the second area of the display, wherein the first time period corresponds to the time when the display driver drives the first area of the display, and the second time period corresponds to the display driver driving the first area of the display. The time of the second area of the display.
- the processor allocates corresponding time resources for the image data transmission corresponding to the first area and the second area, that is, the first time period and the second time period, and sends the first time period of the display to the display driver during the first time period. If the image data of one area is not sent to the display driver in the second time, so that the second area does not need to display images, the processor can save the image data sent to the display driver in the second time period. The power consumption required for the data.
- the processor is further configured to send first instruction information to at least one of a display driver, a power supply, a touch driver, and a fingerprint sensor driver, and the first instruction information is used to indicate all Describes the display requirements of different areas of the display.
- the processor learns the display requirements of different regions, it can notify at least one of the display driver, power supply, touch driver, and fingerprint sensor driver, so that the above-mentioned modules can also correspond to the display requirements of different regions. Carry out time-sharing partition drive control to save more power consumption.
- the processor is further configured to obtain and determine the display requirements of different areas of the display according to the state of the electronic device.
- the state of the electronic device can be a folded state or an unfolded state, a one-handed operation state or a normal operation state, a curved display state or a non-curved display state, etc.
- the processor can determine the display requirements of different areas of the display in this state according to the different states of the electronic device, thereby adjusting the transmission mode of its own image data, and can further instruct other modules to adjust the drive control mode to save power. Consumption.
- it further includes a touch module;
- the touch module includes a first touch scanning circuit, a second touch scanning circuit, and a touch driver;
- the first touch scanning circuit and The second touch scanning circuit is integrated in the display panel;
- the first touch scanning circuit is used to drive the touch sensor in the first area of the display panel, and the second pixel scanning circuit is used to drive the display The touch sensor in the second area of the panel;
- the touch driver is used for controlling the working time period of the first touch scanning circuit and the second touch scanning circuit according to the display requirements of the first area and the second area.
- the display panel includes two different display areas, and the touch sensors in the two display areas are respectively scanned and driven by the first touch scanning circuit and the second touch scanning circuit.
- the circuits are independently controllable, so the touch driver can independently control the operation or non-operation of the two touch scanning circuits in different time periods. Based on this, in an implementation scenario where the first area of the display panel needs to display an image, but the second area does not need to display an image, the area where the image is not displayed can no longer be detected by the touch signal. Then the touch driver can control the second touch scanning circuit corresponding to the second area to not work in a certain period of time, so that the second touch scanning circuit does not need to scan and drive the touch sensor in the second area during this period of time. Therefore, compared with the prior art solution of scanning and driving a full-screen touch sensor in a full-time and full-area, the power consumption required for the operation of the second touch scanning circuit in a period of time can be saved.
- the touch driver is specifically configured to: output a touch driving signal to the first touch scanning circuit in a third time period in a specific time period to drive the first area
- the touch sensor does not output a touch drive signal in the fourth time period, and the third time period and the fourth time period periodically cycle within the specific time period.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display an image but the second area does not need to display an image.
- the specific time period can be entered, and when the touch driver learns that the electronic device changes from a situation in which the second area does not need to display images to other display requirements, the specific time period can be ended. Further, the way for the touch driver to learn the display requirements of the above-mentioned different areas may be obtained by receiving the instruction information sent by the processor.
- the touch driver is further configured to not output the touch driving signal in the fourth time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the touch driving signal is output in a fourth time period.
- the display driver is further configured to respond to an instruction from the second area to stop the screen, and stop outputting the touch drive signal during a fourth time period within the second area's stop time.
- the touch driver allocates corresponding time resources to the touch scanning circuits corresponding to the first area and the second area, that is, the third time period and the fourth time period, and controls the first touch in the third time period.
- the scanning circuit works, and the second touch scanning circuit is controlled to not work in the fourth time period (that is, the touch driving signal is not output), so that the second area does not need to display an image, and the touch signal detection is no longer performed , It can also save the power consumption required by the second touch scanning circuit to scan and drive the touch sensor in the second area in the fourth time period.
- the touch driver is specifically configured to output a touch drive signal to the first touch scanning circuit in both the third time period and the fourth time period in a specific time period.
- the touch sensor in the first area is driven, and the third time period and the fourth time period periodically cycle within the specific time period.
- the touch driver allocates corresponding time resources to the touch scanning circuits corresponding to the first area and the second area, that is, the third time period and the fourth time period, and controls the first touch in the third time period.
- the scanning circuit works.
- the first touch scanning circuit is still controlled to work, so that when the second area does not need to display images, the power consumption required by the touch sensor originally used to scan the second area is used.
- the touch sensor that scans the first area in multiple refreshes is originally a touch sensor that scans the first area once in a frame.
- the touch sensor in the first area can be scanned twice, thereby increasing the number of touch sensors in the first area.
- the touch scanning frequency improves the sensitivity of touch sensing in the first area, and provides a better experience for games and other scenes.
- the first touch scanning circuit and the second touch scanning circuit are electrically separated from each other.
- the touch scanning circuit When the touch scanning circuit is designed with mutual capacitance, if the first area and the second area are vertical up and down partitions, that is, parallel to the vertical scanning line of the touch scanning circuit, then each touch scanning line can be controlled independently at this time. It is impossible to control the touch sensors of the two display areas in a time-sharing manner. Therefore, in this case, the first touch scanning circuit and the second touch scanning circuit need to be electrically separated from each other, so that the first touch scanning circuit and the second touch scanning circuit must be electrically separated from each other.
- the control scanning circuit can be controlled independently without affecting each other.
- the touch control module is further configured to: receive first instruction information sent by the processor, where the first instruction information is used to indicate the difference between the first area and the second area Show demand.
- the fingerprint module includes a first fingerprint scanning circuit, a second fingerprint scanning circuit, and a fingerprint driver; the first fingerprint scanning circuit and the second fingerprint scanning circuit The circuit is integrated in the display panel; the first fingerprint scanning circuit is used to drive the fingerprint sensor in the first area of the display panel, and the second pixel scanning circuit is used to drive the fingerprint sensor in the second area of the display panel;
- the fingerprint driver is used to control the working time period of the first fingerprint scanning circuit and the second fingerprint scanning circuit according to the display requirements of the first area and the second area.
- the display panel includes two different display areas, and the fingerprint sensors in the two display areas are respectively scanned and driven by the first fingerprint scanning circuit and the second fingerprint scanning circuit, because the two fingerprint scanning circuits are independently controllable Therefore, the fingerprint driver can independently control the operation or non-operation of the two fingerprint scanning circuits in different time periods. Based on this, in an implementation scenario where an image needs to be displayed in the first area of the display panel and an image is not required to be displayed in the second area, the fingerprint signal detection may no longer be performed in the area where the image is not displayed.
- the fingerprint driver can control the second fingerprint scanning circuit corresponding to the second area to not work in a certain period of time, so that the second fingerprint scanning circuit does not need to scan and drive the fingerprint sensor in the second area during this period of time, and thus the fingerprint sensor in the second area is relatively present.
- the fingerprint driver is specifically configured to: output a fingerprint driving signal to the first fingerprint scanning circuit in a fifth time period in a specific time period to drive the fingerprint sensor in the first area ,
- the fingerprint drive signal is not output in the sixth time period, and the fifth time period and the sixth time period periodically cycle within the specific time period.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display images but the second area does not need to display images.
- the fingerprint driver learns that the electronic device changes from full-screen display to the second area without displaying images
- the specific time period can be ended.
- the manner in which the fingerprint driver learns the display requirements of the above-mentioned different regions may be obtained by receiving the instruction information sent by the processor.
- the fingerprint driver is further configured to not output the fingerprint drive signal in the sixth time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the fingerprint drive signal is output in the sixth time period.
- the display driver is further configured to respond to an instruction to stop the screen in the second area, and stop outputting the fingerprint drive signal during the sixth time period of the screen stop time in the second area.
- the fingerprint driver allocates corresponding time resources to the fingerprint scanning circuits corresponding to the first area and the second area, namely the fifth time period and the sixth time period, and controls the operation of the first fingerprint scanning circuit in the fifth time period
- the second fingerprint scanning circuit is controlled to be inoperative (that is, the fingerprint drive signal is not output), so that when the second area does not need to display an image, the fingerprint signal detection is no longer performed, and the sixth During the time period, the second fingerprint scanning circuit scans the power consumption required to drive the fingerprint sensor in the second area.
- the fingerprint driver is specifically configured to output a fingerprint driving signal to the first fingerprint scanning circuit to drive the first fingerprint scanning circuit in both the fifth time period and the sixth time period in a specific time period
- the fifth time period and the sixth time period periodically cycle within the specific time period.
- the fingerprint driver allocates corresponding time resources to the fingerprint scanning circuits corresponding to the first area and the second area, namely the fifth time period and the sixth time period, and controls the operation of the first fingerprint scanning circuit in the fifth time period ,
- the first fingerprint scanning circuit is still controlled to work, so that the second area does not need to display images, and the power consumption required by the fingerprint sensor originally used to scan the second area is used for multiple refresh scans
- the fingerprint sensor in the first area is originally a fingerprint sensor that scans the first area once in a frame.
- the fingerprint sensor in the first area can be scanned twice, thereby increasing the frequency of fingerprint scanning in the first area and improving the first area.
- the fingerprint sensing sensitivity of the area provides a better experience for games and other scenes.
- the first fingerprint scanning circuit and the second fingerprint scanning circuit are electrically separated from each other.
- the touch control module is further configured to: receive first instruction information sent by the processor, where the first instruction information is used to indicate the difference between the first area and the second area Show demand.
- it also includes a power supply module
- the power supply module is used to perform independent power supply control for the pixels in the first area and the second area.
- an embodiment of the present application provides a drive control system, which is applied to an electronic device with a display panel, including a display panel and a display drive module; wherein,
- the display panel includes at least two display areas, each display area has a corresponding pixel scanning circuit, and each pixel scanning circuit is electrically separated from each other; each of the pixel scanning circuits is used to drive pixels in a corresponding display area;
- the display driving module includes a scanning control circuit; the scanning control circuit is respectively connected to the pixel scanning circuit corresponding to each display area; the scanning control circuit is used to perform independent operation on the pixel scanning circuit corresponding to each display area Scan drive control.
- the display panel includes two different display areas, and the pixels in the two display areas are scanned and driven by two independent pixel scanning circuits. Since the two pixel scanning circuits are independently controllable, the display The driver can independently control the operation or non-operation of the two pixel scanning circuits in different time periods. Based on this, in an implementation scenario where the first area of the display panel needs to display an image, but the second area does not need to display an image, the display driver can control the second pixel scanning circuit corresponding to the second area to not work during a certain period of time, thereby As a result, the second pixel scanning circuit does not need to scan and drive pixels in the second area during this period of time. Compared with the prior art original scheme of scanning and driving full-screen pixels in a full-period and full-area, the second pixel scanning circuit can be saved for a period of time. Power consumption required for work.
- the system further includes a power supply module; the power supply module is respectively connected to the pixels of each display area; the power supply module is used to perform independent power supply control for the pixels of each display area.
- the power module can independently supply power to the pixels in each display area. Based on this, the first area of the display panel needs to display an image, and the second area does not need to display the image in the implementation scenario, the power module It is not necessary to supply power to the pixels in the second area, thereby saving part of the power consumption.
- an embodiment of the present application provides a drive control method, which is applied to an electronic device with a display panel, and the method includes:
- the display driver obtains the display requirements of the first area and the second area in the display panel; wherein the display requirements are used to indicate whether the first area and the second area need to display images;
- the display driver generates different display drive signals according to the display requirements of the first area and the second area to respectively control the working time periods of the first pixel scanning circuit and the second pixel scanning circuit, wherein the first pixel
- the scanning circuit is used to drive the pixels in the first area of the display panel to convert electrical signals into optical signals
- the second pixel scanning circuit is used to drive the pixels in the second area of the display panel to convert electrical signals. Converted to optical signal.
- the display panel includes two different display areas, and the pixels in the two display areas are scanned and driven by two independent pixel scanning circuits. Since the two pixel scanning circuits are independently controllable, the display The driver can independently control the operation or non-operation of the two pixel scanning circuits in different time periods. Based on this, the display driver can control the time period during which the first pixel scanning circuit and the second pixel scanning circuit are in working state according to the display requirements of the two regions.
- the display driver can control the second pixel scanning circuit corresponding to the second area to not work during a certain period of time, so that During the period of time, the second pixel scanning circuit does not need to scan and drive the pixels in the second area.
- the display driver can control the second pixel scanning circuit corresponding to the second area to not work during a certain period of time, so that During the period of time, the second pixel scanning circuit does not need to scan and drive the pixels in the second area.
- the display driver when the display requirements of the first area and the second area are both display images, the display driver outputs the first pixel scanning circuit to the first pixel scanning circuit in the first time period.
- a display driving signal is used to control the first pixel scanning circuit to drive the pixels in the first region in a first period of time, and a second display driving signal is output to the second pixel scanning circuit in a second period of time to control the first pixel scanning circuit.
- the two-pixel scanning circuit drives the pixels of the second area in a second time period; the first time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period In the second time period, the second pixel scanning circuit is controlled to work, so that when different display areas need to display images, the display control is performed by time-sharing and partitioned driving.
- the method further includes:
- the display driver When the display requirement of the first area is to display an image, and the display requirement of the second area is to not display an image, the display driver outputs the first display to the first pixel scanning circuit in the first time period
- the driving signal is used to control the first pixel scanning circuit to drive the pixels in the first region during the first time period, and not to output a second display driving signal to the second pixel scanning circuit during the second time period. Controlling the second pixel scanning circuit not to drive the pixels in the second region during the second time period.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the second pixel scanning circuit is controlled to not work (that is, the second display driving signal is not output), so that the second area does not need to display images, which can save the second pixel scanning circuit in the second time period.
- the power consumption required to drive the pixels in the second area is not be controlled to not work (that is, the second display driving signal is not output).
- the method further includes:
- the display driver sends to the The first pixel scanning circuit outputs a first display driving signal to control the first pixel scanning circuit to drive the pixels in the first region in the first time period and the second time period, respectively.
- the display driver allocates corresponding time resources to the pixel scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first pixel scanning circuit to work in the first time period
- the first pixel scanning circuit is still controlled to work so that the second area does not need to display images, and the power consumption originally used to scan the pixels in the second area is used for multiple refresh scans.
- Pixels in one area that is, pixels in the first area that are scanned once in a frame
- the pixels in the first area can be scanned twice, thereby increasing the display scanning frequency of the first area and improving the display picture of the first area. Quality, to provide a better experience for games and other scenes.
- the method further includes:
- the pixel data signal is sent in both the first time period and the second time period, and the first time period The segment and the second time period cycle periodically, and the pixel data signal is used to indicate content displayed by the pixels in the display panel.
- the method further includes:
- the display driver sends a pixel data signal to the display panel in the first time period, and in the second time The pixel data signal is not sent in the segment; the pixel data signal is used to indicate the content displayed by the pixels in the display panel, and the first time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources for sending the pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not send The pixel data signal can thereby save the power consumption of sending the pixel data signal in the second time period.
- the method further includes:
- the display driver When the display requirement of the first area is to display an image, and the display requirement of the second area is not to display an image, the display driver generates the pixel data signal in the first time period, and in the second The pixel data signal is not generated during the time period.
- the display driver allocates corresponding time resources for the generation of pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not generate The pixel data signal can thereby save power consumption for processing and generating the pixel data signal in the second time period.
- the method further includes:
- the display driver receives the image data of the first area sent by the processor in the first time period, and receives the image data of the second area sent by the receiving processor in the second time period, where the image data is used to generate an instruction
- the pixel data signal of the content displayed by the pixel in the display panel is used to generate an instruction
- the method further includes:
- the display driver receives the image data of the display panel sent by the processor in the first time period, and The second time period does not receive the image data of the display panel sent by the processor, and the first time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources for the reception of image data corresponding to the first area and the second area.
- the second time period display driver module may not receive processing.
- the image data sent by the device can save the power consumption of receiving image data in the second time period.
- an embodiment of the present application provides a touch module, the touch module includes a first touch scan circuit, a second touch scan circuit, and a touch driver; the first touch scan circuit And the second touch scanning circuit are integrated in the display panel; the first touch scanning circuit is used to drive the touch sensor in the first area of the display panel, and the second pixel scanning circuit is used to drive the The touch sensor in the second area of the display panel;
- the touch driver is used for controlling the working time period of the first touch scanning circuit and the second touch scanning circuit according to the display requirements of the first area and the second area.
- the display panel includes two different display areas, and the touch sensors in the two display areas are respectively scanned and driven by the first touch scanning circuit and the second touch scanning circuit.
- the circuits are independently controllable, so the touch driver can independently control the operation or non-operation of the two touch scanning circuits in different time periods. Based on this, in an implementation scenario where the first area of the display panel needs to display an image, but the second area does not need to display an image, the area where the image is not displayed can no longer be detected by the touch signal. Then the touch driver can control the second touch scanning circuit corresponding to the second area to not work in a certain period of time, so that the second touch scanning circuit does not need to scan and drive the touch sensor in the second area during this period of time. Therefore, compared with the prior art solution of scanning and driving a full-screen touch sensor in a full-time and full-area, the power consumption required for the operation of the second touch scanning circuit in a period of time can be saved.
- the touch driver is specifically configured to: output a touch driving signal to the first touch scanning circuit to drive the first area in a first time period in a specific time period
- the touch sensor in the second time period does not output a touch drive signal, and the first time period and the second time period periodically cycle within the specific time period.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display an image but the second area does not need to display an image.
- the specific time period can be entered, and when the touch driver learns that the electronic device changes from a situation in which the second area does not need to display images to other display requirements, the specific time period can be ended. Further, the manner in which the touch driver obtains the display requirements of the above-mentioned different regions may be obtained by receiving instruction information sent by the processor.
- the touch driver is further configured to not output the touch drive signal in the second time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the touch driving signal is output in a second time period.
- the display driver is further configured to respond to an instruction to close the screen in the second area, and stop outputting the touch drive signal during a second time period during the screen-off time in the second area.
- the touch driver allocates corresponding time resources to the touch scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first touch in the first time period.
- the scanning circuit works, and the second touch scanning circuit is controlled to not work during the second time period (that is, the touch driving signal is not output), so that the second area does not need to display an image, and the touch signal detection is no longer performed , It can also save the power consumption required by the second touch scanning circuit to scan and drive the touch sensor in the second area in the second time period.
- the touch driver is specifically configured to: in a specific time period, output a touch drive signal to the first touch scanning circuit in both the first time period and the second time period to The touch sensor in the first area is driven, and the first time period and the second time period periodically cycle within the specific time period.
- the touch driver allocates corresponding time resources to the touch scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the first touch in the first time period.
- the scanning circuit works, and still controls the operation of the first touch scanning circuit in the second time period, so that when the second area does not need to display images, the power consumption required by the touch sensor originally used to scan the second area is used.
- the touch sensor that scans the first area in multiple refreshes is originally a touch sensor that scans the first area once in a frame.
- the touch sensor in the first area can be scanned twice, thereby increasing the number of touch sensors in the first area.
- the touch scanning frequency improves the sensitivity of touch sensing in the first area, and provides a better experience for games and other scenes.
- the first touch scanning circuit and the second touch scanning circuit are electrically separated from each other.
- the touch scanning circuit When the touch scanning circuit is designed with mutual capacitance, if the first area and the second area are vertical up and down partitions, that is, parallel to the vertical scanning line of the touch scanning circuit, then each touch scanning line can be controlled independently at this time. It is impossible to control the touch sensors of the two display areas in a time-sharing manner. Therefore, in this case, the first touch scanning circuit and the second touch scanning circuit need to be electrically separated from each other, so that the first touch scanning circuit and the second touch scanning circuit must be electrically separated from each other.
- the control scanning circuit can be controlled independently without affecting each other.
- the touch control module is further configured to: receive first instruction information sent by the processor, where the first instruction information is used to indicate the difference between the first area and the second area Show demand.
- an embodiment of the present application provides a fingerprint module.
- the fingerprint module includes a first fingerprint scanning circuit, a second fingerprint scanning circuit, and a fingerprint driver; the first fingerprint scanning circuit and the second fingerprint
- the scanning circuit is integrated in the display panel; the first fingerprint scanning circuit is used to drive the fingerprint sensor in the first area of the display panel, and the second pixel scanning circuit is used to drive the fingerprint sensor in the second area of the display panel ;
- the fingerprint driver is used to control the working time period of the first fingerprint scanning circuit and the second fingerprint scanning circuit according to the display requirements of the first area and the second area.
- the display panel includes two different display areas, and the fingerprint sensors in the two display areas are respectively scanned and driven by the first fingerprint scanning circuit and the second fingerprint scanning circuit, because the two fingerprint scanning circuits are independently controllable Therefore, the fingerprint driver can independently control the operation or non-operation of the two fingerprint scanning circuits in different time periods. Based on this, in an implementation scenario where an image needs to be displayed in the first area of the display panel and an image is not required to be displayed in the second area, the fingerprint signal detection may no longer be performed in the area where the image is not displayed.
- the fingerprint driver can control the second fingerprint scanning circuit corresponding to the second area to not work in a certain period of time, so that the second fingerprint scanning circuit does not need to scan and drive the fingerprint sensor in the second area during this period of time, and thus the fingerprint sensor in the second area is relatively present.
- the fingerprint driver is specifically configured to: output a fingerprint drive signal to the first fingerprint scanning circuit in a first time period within a specific time period to drive the fingerprint sensor in the first area ,
- the fingerprint drive signal is not output in the second time period, and the first time period and the second time period periodically cycle within the specific time period.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display images but the second area does not need to display images.
- the specific time period can be entered when the display demand is met, and the specific time period can be ended when the fingerprint driver learns that the electronic device changes from a situation in which the second area does not need to display images to other display demands. Further, the manner in which the fingerprint driver learns the display requirements of the above-mentioned different regions may be obtained by receiving the instruction information sent by the processor.
- the fingerprint driver is further configured to not output the fingerprint drive signal in the second time period after obtaining the demand indication information of the second area screen; After the demand indication information displayed in the second area, the fingerprint driving signal is output in the second time period.
- the display driver is further configured to respond to an instruction to stop the screen in the second area, and stop outputting the fingerprint drive signal during the second time period within the screen stop time in the second area.
- the fingerprint driver allocates corresponding time resources to the fingerprint scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the operation of the first fingerprint scanning circuit in the first time period
- the second fingerprint scanning circuit is controlled to be inoperative (that is, the fingerprint drive signal is not output), so that when the second area does not need to display an image, the fingerprint signal detection is no longer performed, and the second fingerprint scanning circuit can also be saved.
- the second fingerprint scanning circuit scans the power consumption required to drive the fingerprint sensor in the second area.
- the fingerprint driver is specifically configured to output a fingerprint driving signal to the first fingerprint scanning circuit to drive the fingerprint scanning circuit in both the first time period and the second time period in a specific time period.
- the first time period and the second time period periodically cycle within the specific time period.
- the fingerprint driver allocates corresponding time resources to the fingerprint scanning circuits corresponding to the first area and the second area, that is, the first time period and the second time period, and controls the operation of the first fingerprint scanning circuit in the first time period ,
- the first fingerprint scanning circuit is still controlled to work, so that the second area does not need to display images, and the power consumption required by the fingerprint sensor originally used to scan the second area is used for multiple refresh scans
- the fingerprint sensor in the first area is originally a fingerprint sensor that scans the first area once in a frame.
- the fingerprint sensor in the first area can be scanned twice, thereby increasing the frequency of fingerprint scanning in the first area and improving the first area.
- the fingerprint sensing sensitivity of the area provides a better experience for games and other scenes.
- the first fingerprint scanning circuit and the second fingerprint scanning circuit are electrically separated from each other.
- the touch control module is further configured to: receive first instruction information sent by the processor, where the first instruction information is used to indicate the difference between the first area and the second area Show demand.
- an embodiment of the present application provides a drive control method, which is applied to an electronic device with a display, and the method includes:
- the display driver obtains the display requirements of the first area and the second area in the display panel
- the display driver sends pixel data signals to the display panel in the first time period, and does not send pixels in the second time period Data signal; the pixel data signal is used to indicate the content displayed by the pixels in the display panel, and the first time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources for sending the pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not send The pixel data signal can thereby save the power consumption of sending the pixel data signal in the second time period.
- an embodiment of the present application provides a drive control method, which is applied to an electronic device with a display, and the method includes:
- the display driver obtains the display requirements of the first area and the second area in the display panel
- the display driver When the display requirement of the first area is to display an image, and the display requirement of the second area is not to display an image, the display driver generates the pixel data signal in the first time period, and in the second The pixel data signal is not generated during the time period.
- the display driver allocates corresponding time resources for the generation of pixel data signals corresponding to the first area and the second area.
- the second time period display driver module may not generate The pixel data signal can thereby save power consumption for processing and generating the pixel data signal in the second time period.
- an embodiment of the present application provides a drive control method, which is applied to an electronic device with a display, and the method includes:
- the display driver obtains the display requirements of the first area and the second area in the display panel
- the display driver receives the image data of the display panel sent by the processor in the first time period, and The second time period does not receive the image data of the display panel sent by the processor, and the first time period and the second time period cycle periodically.
- the display driver allocates corresponding time resources for the reception of image data corresponding to the first area and the second area.
- the second time period display driver module may not receive processing.
- the image data sent by the device can save the power consumption of receiving image data in the second time period.
- FIG. 1 is a schematic diagram of the structure of an electronic device provided by an embodiment of the application.
- FIG. 2 is a block diagram of the software structure of an electronic device provided by an embodiment of the application.
- 3a is a schematic diagram of a display state of a curved display panel provided by an embodiment of the application.
- 3b is a schematic diagram of the display state of another curved display panel provided by an embodiment of the application.
- FIG. 4a is a schematic diagram of a display state of a foldable display panel provided by an embodiment of the application.
- 4b is a schematic diagram of the display state of another foldable display panel provided by an embodiment of the application.
- FIG. 5 is a schematic diagram of a display state of a display panel in a one-handed operation state according to an embodiment of the application
- Fig. 6a is a system architecture diagram of a drive control system provided by an embodiment of the application.
- Fig. 6b is a system architecture diagram of another drive control system provided by an embodiment of the application.
- FIG. 7 is a schematic diagram of a pixel scanning circuit of a display panel provided by an embodiment of the application.
- FIG. 8a is a schematic diagram of a mutual-capacitive touch scanning circuit provided by an embodiment of the application.
- FIG. 8b is a schematic diagram of a self-capacitive touch scanning circuit provided by an embodiment of the application.
- FIG. 9 is a schematic diagram of functional control of a drive control method provided by an embodiment of the application.
- FIG. 10 is a schematic diagram of function control of another drive control method provided by an embodiment of the application.
- FIG. 11 is a signal control timing diagram of a data transmission sub-module of a processor and a data receiving sub-module of a display driver provided in an embodiment of the application in one frame;
- FIG. 12 is a timing diagram of the enable signal control of each sub-module or unit in the display driver provided in an embodiment of the application in one frame;
- FIG. 13a is a driving timing signal diagram of a pixel scanning circuit in one frame according to an embodiment of the application.
- FIG. 13b is a driving timing signal diagram of another pixel scanning circuit in one frame according to an embodiment of the application.
- FIG. 14a is a driving timing signal diagram of a mutual-capacitive touch scanning circuit in one frame according to an embodiment of the application.
- FIG. 14b is a driving timing signal diagram of another mutual-capacitive touch scanning circuit in one frame according to an embodiment of the application.
- 15a is a driving timing signal diagram of a self-capacitive touch scanning circuit in one frame according to an embodiment of the application;
- 15b is a driving timing signal diagram of another self-capacitive touch scanning circuit in one frame according to an embodiment of the application.
- FIG. 16 is a driving timing signal diagram of each module or unit in one frame in two states according to an embodiment of the application.
- FIG. 17 is a driving timing signal diagram of another pixel scanning circuit in one frame according to an embodiment of the application.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present application, unless otherwise specified, "plurality” means two or more.
- the embodiment of the present application provides a driving control method, which is applied to an electronic device with a display panel.
- the display panel may have at least two pixel groups, each pixel group includes a plurality of pixels, each pixel group corresponds to a display area, and each display area has a corresponding pixel scanning circuit.
- the pixel scanning circuit corresponding to each display area is specifically configured to sequentially drive pixels in the display area to convert electrical signals into optical signals.
- the pixel scanning circuits corresponding to each display area are independently controllable, and the display driver can independently control the working period of each pixel scanning circuit, that is, it can independently control where each pixel scanning circuit is.
- the embodiment of the present application may allocate corresponding time resources to the pixel scanning circuits corresponding to each display area, and the time resources of the pixel scanning circuits corresponding to multiple display areas are periodically cycled.
- the display panel includes two display areas, a first area and a second area, which have corresponding first pixel scanning circuits and second pixel scanning circuits.
- the display driver can allocate the first time period in one frame to the first area and the second time period in one frame to the second area.
- the first time period and the second time period can form a frame without an interval, and continue to circulate the first time period and the second time period in the next frame, thereby realizing a periodic cycle; in another implementation manner, the first time period and the second time period There can also be a certain interval between the time periods, that is, the first time period and the second time period and the interval together form a frame, and the first time period and the second time period continue to circulate in the next frame, so as to achieve periodicity cycle.
- the first time period can be used to control the operation of the first pixel scanning circuit
- the second time period can be used to control the operation of the second pixel scanning circuit. In this way, the first area and the second area will be time-sharing scanning driven in the first time period and the second time period in one frame, thereby further displaying the image.
- the display area of the display panel may have two display requirements.
- the display requirements of some display areas are to display images, and the display requirements of other display areas are not to display images.
- the embodiment of this application is aimed at the implementation scenario in which some areas need to display images and some areas do not need to display images.
- the display demand is corresponding to the area where the image is displayed within a specific time period.
- the pixel scanning circuit When the time resource of the pixel scanning circuit arrives, the pixel scanning circuit is controlled to work normally (driving the corresponding pixel to convert the electrical signal into an optical signal); when the display demand is that the time resource of the pixel scanning circuit corresponding to the area where no image is displayed arrives, The pixel scanning circuit is controlled to stop working (the corresponding pixel is not driven to convert electrical signals into optical signals).
- the specific time period refers to the period of time during which part of the display area needs to be closed or instructed to be closed.
- the specific time period may specifically be a period of time when the electronic device is in a state where the first area needs to display images but the second area does not need to display images.
- the specific time period can be entered when the display demand is met, and the specific time period can be ended when the display driver learns that the electronic device does not need to display images from the second area to need to display images.
- the specific time period may also be a period of time after obtaining the demand indication information of the second area on the screen, and the specific time period ends after obtaining the demand indication information displayed in the second area.
- a specific time period is entered when the instruction to close the screen in the second area is received, and the specific time period is ended when the instruction to display in the second area is received.
- the display area and the corresponding pixel scanning circuit when pre-dividing the display area and the corresponding pixel scanning circuit, it can be set according to the specific functions of the specific electronic device. For example, in certain functions or scenarios, which areas do not need to display images, The number and location of the display areas that need to be divided can be determined according to these specific conditions in which areas need to be displayed. At the same time, after the location of the display area is determined, the time resource corresponding to each display area can be further determined. For example, three display areas can be divided equally from left to right, and the corresponding time resources in each frame can be the first time period, the second time period, and the third time period. The three time periods are in each frame. The cycles are cycled once in turn. Moreover, the time lengths of the three time resources can be the same or different, and can be further set according to the situation.
- the corresponding functions of the display driver for receiving, processing, and sending image data in the specific time period may not be enabled.
- the pixels corresponding to the part of the area where the image does not need to be displayed may not be powered.
- the touch driver can also allocate corresponding time resources for each touch scanning circuit, and multiple displays The time resources of the touch scanning circuit corresponding to the area cyclically cycle. It is possible to control the normal operation of the touch scanning circuit when the display demand is the time resource of the touch scanning circuit corresponding to the area where the image is displayed, and when the display demand is the time resource of the touch scanning circuit corresponding to the area where the image is not displayed. , The touch driver stops scanning and driving the touch sensor by the touch scanning circuit.
- different display areas of the display panel can correspond to different fingerprint scanning circuits, and the fingerprint driver can also allocate corresponding time resources for each fingerprint scanning circuit, and multiple display areas correspond to The time resource of the fingerprint scanning circuit cycles periodically.
- the fingerprint scanning circuit can be controlled to work normally when the display demand is the time resource of the fingerprint scanning circuit corresponding to the area where the image is displayed.
- the fingerprint driver Stop scanning and driving the fingerprint sensor by the fingerprint scanning circuit.
- the power consumption required for the corresponding work of the part can be saved, and after all the parts are executed, the power consumption required for the corresponding work of all parts can be saved, and the battery life of the electronic device is prolonged.
- FIG. 1 is a schematic structural diagram of an exemplary electronic device 100 provided in this application.
- the electronic device 100 may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a personal digital assistant (personal digital assistant) digital assistant (PDA), augmented reality (AR) devices, virtual reality (VR) devices, artificial intelligence (AI) devices, wearable devices, in-vehicle devices, smart home devices and/or Smart city equipment, the embodiment of the application does not impose any special restrictions on the specific type of the electronic equipment. In general, as long as it can meet the requirements of the above-mentioned display panel with multiple display areas, and different areas may be in both visible and invisible display states at the same time, it can be applicable to the drive control provided by the embodiments of the present application. method.
- the electronic device 100 may have more or fewer components than shown in the figure, may combine two or more components, or may have different component configurations.
- the various components shown in the figure may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.
- the electronic device 100 may include: a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2.
- Mobile communication module 150 wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, buttons 190, motor 191, indicator 192, camera 193, display 194, And subscriber identification module (subscriber identification module, SIM) card interface 195 and so on.
- SIM subscriber identification module
- the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light Sensor 180L, bone conduction sensor 180M, etc.
- the processor 110 may be configured as a system on chip (System on Chip, SOC), and may include one or more processing units.
- the processor 110 may include an application processor (AP). Demodulation processor, graphics processing unit (GPU), image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), Baseband processor, and/or neural-network processing unit (NPU), etc.
- AP application processor
- Demodulation processor graphics processing unit
- ISP image signal processor
- controller memory
- video codec digital signal processor
- DSP digital signal processor
- NPU neural-network processing unit
- the different processing units may be independent devices or integrated in one or more processors.
- the controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching and executing instructions.
- a memory may also be provided in the processor 110 to store instructions and data.
- the memory in the processor 110 is a cache memory.
- the memory can store instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 110 is reduced, and the efficiency of the system is improved.
- the processor 110 may include one or more interfaces.
- the interface can include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter (universal asynchronous transmitter) interface.
- I2C integrated circuit
- I2S integrated circuit built-in audio
- PCM pulse code modulation
- PCM pulse code modulation
- UART universal asynchronous transmitter
- MIPI mobile industry processor interface
- GPIO general-purpose input/output
- SIM subscriber identity module
- USB Universal Serial Bus
- the I2C interface is a bidirectional synchronous serial bus, which includes a serial data line (SDA) and a serial clock line (SCL).
- the processor 110 may include multiple sets of I2C buses.
- the processor 110 may couple the touch sensor 180K, charger, flash, camera 193, etc., respectively through different I2C bus interfaces.
- the processor 110 may couple the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through the I2C bus interface to implement the touch function of the electronic device 100.
- the I2S interface can be used for audio communication.
- the processor 110 may include multiple sets of I2S buses.
- the processor 110 may be coupled with the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170.
- the audio module 170 may transmit audio signals to the wireless communication module 160 through an I2S interface, so as to realize the function of answering calls through a Bluetooth headset.
- the PCM interface can also be used for audio communication to sample, quantize and encode analog signals.
- the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface.
- the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
- the UART interface is a universal serial data bus used for asynchronous communication.
- the bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication.
- the UART interface is generally used to connect the processor 110 and the wireless communication module 160.
- the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to realize the Bluetooth function.
- the audio module 170 may transmit audio signals to the wireless communication module 160 through a UART interface, so as to realize the function of playing music through a Bluetooth headset.
- the MIPI interface can be used to connect the processor 110 with the display screen 194, the camera 193 and other peripheral devices.
- the MIPI interface includes camera serial interface (camera serial interface, CSI), display serial interface (display serial interface, DSI), etc.
- the processor 110 and the camera 193 communicate through a CSI interface to implement the shooting function of the electronic device 100.
- the processor 110 and the display screen 194 communicate through a DSI interface to realize the display function of the electronic device 100. Specifically, it may include the data receiving interface MIPI RX and the data transmission interface MIPI TX.
- the GPIO interface can be configured through software.
- the GPIO interface can be configured as a control signal or as a data signal.
- the GPIO interface can be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and so on.
- the GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.
- the USB interface 130 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on.
- the USB interface 130 can be used to connect a charger to charge the electronic device 100, and can also be used to transfer data between the electronic device 100 and peripheral devices. It can also be used to connect earphones and play audio through earphones.
- the interface can also be used to connect other electronic devices, such as AR devices.
- the interface connection relationship between the modules illustrated in the embodiment of the present application is merely a schematic description, and does not constitute a structural limitation of the electronic device 100.
- the electronic device 100 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.
- the charging management module 140 is used to receive charging input from the charger.
- the charger can be a wireless charger or a wired charger.
- the charging management module 140 may receive the charging input of the wired charger through the USB interface 130.
- the charging management module 140 may receive the wireless charging input through the wireless charging coil of the electronic device 100. While the charging management module 140 charges the battery 142, it can also supply power to the electronic device through the power management module 141.
- the power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110.
- the power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160.
- the power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance).
- the power management module 141 may also be provided in the processor 110.
- the power management module 141 and the charging management module 140 may also be provided in the same device.
- the power management module 141 may include a separate power module, and the power module is mainly used to provide the display screen 194 (specifically, the pixels in the display screen) and drive circuits related to the display screen 194 (for example, , Display driver, touch driver and fingerprint driver) for power supply.
- the display screen 194 may include a plurality of pixel groups, and the power supply module may be connected to each pixel group separately for independently supplying power to each pixel group. Further, in a specific time period, the power supply module can supply power to some pixel groups but not other pixel groups.
- the wireless communication function of the electronic device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.
- the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals.
- Each antenna in the electronic device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
- antenna 1 can be multiplexed as a diversity antenna of a wireless local area network.
- the antenna can be used in combination with a tuning switch.
- the mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the electronic device 100.
- the mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), and so on.
- the mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation.
- the mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic wave radiation via the antenna 1.
- at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110.
- at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.
- the modem processor may include a modulator and a demodulator.
- the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal.
- the demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal.
- the demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing.
- the low-frequency baseband signal is processed by the baseband processor and then passed to the application processor.
- the application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays an image or video through the display screen 194.
- the modem processor may be an independent device.
- the modem processor may be independent of the processor 110 and be provided in the same device as the mobile communication module 150 or other functional modules.
- the wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellites.
- WLAN wireless local area networks
- BT wireless fidelity
- GNSS global navigation satellite system
- FM frequency modulation
- NFC near field communication technology
- infrared technology infrared, IR
- the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
- the wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110.
- the wireless communication module 160 may also receive a signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic waves to radiate through the antenna 2.
- the antenna 1 of the electronic device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology.
- the wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc.
- the GNSS may include the global positioning system (GPS), the global navigation satellite system (GLONASS), the Beidou navigation satellite system (BDS), and the quasi-zenith satellite system (quasi). -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).
- GPS global positioning system
- GLONASS global navigation satellite system
- BDS Beidou navigation satellite system
- QZSS quasi-zenith satellite system
- SBAS satellite-based augmentation systems
- the electronic device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like.
- the GPU is a microprocessor for image processing, connected to the display 194 and the application processor.
- the GPU is used to perform mathematical and geometric calculations and is used for graphics rendering.
- the processor 110 may include one or more GPUs that execute program instructions to generate or change display information.
- the display screen 194 is used to display images, videos, and the like.
- the display screen 194 is also called a display, and includes a display panel, and may also include a control circuit for controlling the display panel. Specifically, it may be a display drive integrated circuit (DDIC), which is also called a display driver.
- the control circuit for controlling the display panel is partially integrated on the display panel.
- the display panel can adopt liquid crystal display (LCD), organic light-emitting diode (OLED), active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode).
- the electronic device 100 may include one or N display screens 194, and N is a positive integer greater than one.
- the display panel may include multiple display areas, and each display area corresponds to a group of pixels, and the pixels may display corresponding image content after being driven and powered.
- Each display area of the display panel may have a corresponding independently controllable pixel scanning circuit, and the pixel scanning circuit is used to scan and drive pixels in the corresponding display area in order to display an image.
- the pixel scanning circuit may include a row scanning circuit and a light-emitting scanning circuit. The row scanning circuit is used to sequentially drive the pixels corresponding to each row in the display panel to load pixel data signals, and the light-emitting scanning circuit is used to drive the display sequentially.
- the pixels corresponding to each row in the panel display an image according to the pixel data signal.
- the electronic device 100 can realize a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, and an application processor.
- the ISP is used to process the data fed back from the camera 193. For example, when taking a picture, the shutter is opened, the light is transmitted to the photosensitive element of the camera through the lens, the light signal is converted into an electrical signal, and the photosensitive element of the camera transfers the electrical signal to the ISP for processing and is converted into an image visible to the naked eye.
- ISP can also optimize the image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene.
- the ISP may be provided in the camera 193.
- the camera 193 is used to capture still images or videos.
- the object generates an optical image through the lens and is projected to the photosensitive element.
- the photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor.
- CMOS complementary metal-oxide-semiconductor
- the photosensitive element converts the optical signal into an electrical signal, and then transfers the electrical signal to the ISP to convert it into a digital image signal.
- ISP outputs digital image signals to DSP for processing.
- DSP converts digital image signals into standard RGB, YUV and other formats of image signals.
- the electronic device 100 may include one or N cameras 193, and N is a positive integer greater than one.
- Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.
- Video codecs are used to compress or decompress digital video.
- the electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in multiple encoding formats, such as: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.
- MPEG moving picture experts group
- MPEG2 MPEG2, MPEG3, MPEG4, and so on.
- NPU is a neural-network (NN) computing processor.
- NN neural-network
- the NPU can realize applications such as intelligent cognition of the electronic device 100, such as image recognition, face recognition, voice recognition, text understanding, and so on.
- the external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100.
- the external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, save music, video and other files in an external memory card.
- the internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions.
- the processor 110 executes various functional applications and data processing of the electronic device 100 by running instructions stored in the internal memory 121.
- the internal memory 121 may include a storage program area and a storage data area.
- the storage program area can store an operating system, at least one application required by a function (such as a face recognition function, a fingerprint recognition function, a mobile payment function, etc.) and so on.
- the storage data area can store data created during the use of the electronic device 100 (such as face information template data, fingerprint information template, etc.) and the like.
- the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.
- the processor 110 executes various functional applications and data processing of the electronic device 100 by running instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.
- the electronic device 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc.
- the audio module 170 is used to convert digital audio information into an analog audio signal for output, and is also used to convert an analog audio input into a digital audio signal.
- the audio module 170 can also be used to encode and decode audio signals.
- the audio module 170 may be provided in the processor 110, or part of the functional modules of the audio module 170 may be provided in the processor 110.
- the speaker 170A also called “speaker” is used to convert audio electrical signals into sound signals.
- the electronic device 100 can listen to music through the speaker 170A, or listen to a hands-free call.
- the receiver 170B also called a "handset" is used to convert audio electrical signals into sound signals.
- the electronic device 100 answers a call or voice message, it can receive the voice by bringing the receiver 170B close to the human ear.
- the microphone 170C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
- the user can make a sound by approaching the microphone 170C through the human mouth, and input the sound signal into the microphone 170C.
- the electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C, which can implement noise reduction functions in addition to collecting sound signals. In other embodiments, the electronic device 100 may also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.
- the earphone interface 170D is used to connect wired earphones.
- the earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.
- OMTP open mobile terminal platform
- CTIA cellular telecommunications industry association
- the pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal.
- the pressure sensor 180A may be provided on the display screen 194. Pressure sensor 180A
- the capacitive pressure sensor may include at least two parallel plates with conductive materials.
- the electronic device 100 determines the intensity of the pressure according to the change in capacitance.
- the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A.
- the electronic device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A.
- touch operations that act on the same touch position but have different touch operation intensities can correspond to different operation instructions.
- the gyro sensor 180B may be used to determine the movement posture of the electronic device 100.
- the angular velocity of the electronic device 100 around three axes i.e., x, y, and z axes
- the gyro sensor 180B can be used for image stabilization.
- the gyro sensor 180B detects the shake angle of the electronic device 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to counteract the shake of the electronic device 100 through reverse movement to achieve anti-shake.
- the gyro sensor 180B can also be used for navigation and somatosensory game scenes.
- the air pressure sensor 180C is used to measure air pressure.
- the electronic device 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.
- the magnetic sensor 180D includes a Hall sensor.
- the electronic device 100 can use the magnetic sensor 180D to detect the opening and closing of the flip holster.
- the electronic device 100 can detect the opening and closing of the flip according to the magnetic sensor 180D. Then, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.
- the acceleration sensor 180E can detect the magnitude of the acceleration of the electronic device 100 in various directions (generally three axes). When the electronic device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices, and be used in applications such as horizontal and vertical screen switching, pedometers and so on.
- the electronic device 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the electronic device 100 may use the distance sensor 180F to measure the distance to achieve fast focusing.
- the proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector such as a photodiode.
- the light emitting diode may be an infrared light emitting diode.
- the electronic device 100 emits infrared light to the outside through the light emitting diode.
- the electronic device 100 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 100. When insufficient reflected light is detected, the electronic device 100 can determine that there is no object near the electronic device 100.
- the electronic device 100 can use the proximity light sensor 180G to detect that the user holds the electronic device 100 close to the ear to talk, so as to automatically turn off the screen to save power.
- the proximity light sensor 180G can also be used in leather case mode, and the pocket mode will automatically unlock and lock the screen.
- the ambient light sensor 180L is used to sense the brightness of the ambient light.
- the electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived brightness of the ambient light.
- the ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures.
- the ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in the pocket to prevent accidental touch.
- Fingerprint sensor 180H used to collect fingerprints.
- the electronic device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.
- the fingerprint sensor 180H has a corresponding fingerprint scanning circuit and a fingerprint driver (or fingerprint driving circuit) for driving the fingerprint sensor 180H to detect and feedback fingerprint signals.
- the temperature sensor 180J is used to detect temperature.
- the electronic device 100 uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the electronic device 100 reduces the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection.
- the electronic device 100 when the temperature is lower than another threshold, the electronic device 100 heats the battery 142 to avoid abnormal shutdown of the electronic device 100 due to low temperature.
- the electronic device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.
- Touch sensor 180K also called “touch device” or “touch sensor”.
- the touch sensor 180K may be provided on the display screen 194, and the touch screen is composed of the touch sensor 180K and the display screen 194, which is also called a “touch screen”.
- the touch sensor 180K is used to detect touch operations acting on or near it.
- the touch sensor can pass the detected touch operation to the application processor to determine the type of touch event.
- the visual output related to the touch operation can be provided through the display screen 194.
- the touch sensor 180K may also be disposed on the surface of the electronic device 100, which is different from the position of the display screen 194.
- the touch sensor 180K has a corresponding touch scanning circuit and a touch driver (or touch driving circuit) for driving the touch sensor 180K to detect and feedback touch signals.
- the bone conduction sensor 180M can acquire vibration signals.
- the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice.
- the bone conduction sensor 180M can also contact the human pulse and receive the blood pressure pulse signal.
- the bone conduction sensor 180M may also be provided in the earphone, combined with the bone conduction earphone.
- the audio module 170 can parse the voice signal based on the vibration signal of the vibrating bone block of the voice obtained by the bone conduction sensor 180M, and realize the voice function.
- the application processor may analyze the heart rate information based on the blood pressure beating signal obtained by the bone conduction sensor 180M, and realize the heart rate detection function.
- the button 190 includes a power-on button, a volume button, and so on.
- the button 190 may be a mechanical button. It can also be a touch button.
- the electronic device 100 may receive key input, and generate key signal input related to user settings and function control of the electronic device 100.
- the motor 191 can generate vibration prompts.
- the motor 191 can be used for incoming call vibration notification, and can also be used for touch vibration feedback.
- touch operations that act on different applications can correspond to different vibration feedback effects.
- Acting on touch operations in different areas of the display screen 194, the motor 191 can also correspond to different vibration feedback effects.
- Different application scenarios for example: time reminding, receiving information, alarm clock, games, etc.
- the touch vibration feedback effect can also support customization.
- the indicator 192 may be an indicator light, which may be used to indicate the charging status, power change, or to indicate messages, missed calls, notifications, and so on.
- the SIM card interface 195 is used to connect to the SIM card.
- the SIM card can be inserted into the SIM card interface 195 or pulled out from the SIM card interface 195 to achieve contact and separation with the electronic device 100.
- the electronic device 100 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1.
- the SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, etc.
- the same SIM card interface 195 can insert multiple cards at the same time. The types of the multiple cards can be the same or different.
- the SIM card interface 195 can also be compatible with different types of SIM cards.
- the SIM card interface 195 can also be compatible with external memory cards.
- the electronic device 100 interacts with the network through the SIM card to implement functions such as call and data communication.
- the electronic device 100 adopts an eSIM, that is, an embedded SIM card.
- the eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100.
- the software system of the electronic device 100 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture.
- the embodiment of the present invention takes an Android system with a layered architecture as an example to illustrate the software structure of the electronic device 100 by way of example.
- FIG. 2 is a block diagram of the software structure of the electronic device 100 according to an embodiment of the present application.
- the layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface.
- the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer.
- the application layer can include a series of application packages.
- the application package can include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, etc.
- the application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer.
- the application framework layer includes some predefined functions.
- the application framework layer can include a window manager, a content provider, a view system, a phone manager, a resource manager, and a notification manager.
- the window manager is used to manage window programs.
- the window manager can obtain the size of the display screen, determine whether there is a status bar, lock the screen, take a screenshot, etc.
- the content provider is used to store and retrieve data and make these data accessible to applications.
- the data may include video, image, audio, phone calls made and received, browsing history and bookmarks, phone book, etc.
- the view system includes visual controls, such as controls that display text, controls that display pictures, and so on.
- the view system can be used to build applications.
- the display interface can be composed of one or more views.
- a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.
- the phone manager is used to provide the communication function of the electronic device 100. For example, the management of the call status (including connecting, hanging up, etc.).
- the resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.
- the notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can automatically disappear after a short stay without user interaction.
- the notification manager is used to notify download completion, message reminders, and so on.
- the notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window.
- prompt text information in the status bar sound a prompt sound, electronic device vibration, flashing indicator light, etc.
- Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.
- the core library consists of two parts: one part is the function function that the java language needs to call, and the other part is the core library of Android.
- the application layer and the application framework layer run in a virtual machine.
- the virtual machine executes the java files of the application layer and the application framework layer as binary files.
- the virtual machine is used to perform functions such as object life cycle management, stack management, thread management, security and exception management, and garbage collection.
- the system library can include multiple functional modules. For example: surface manager (surface manager), media library (Media Libraries), three-dimensional graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.
- the surface manager is used to manage the display subsystem and provides a combination of 2D and 3D layers for multiple applications.
- the media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files.
- the media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.
- the 3D graphics processing library is used to realize 3D graphics drawing, image rendering, synthesis, and layer processing.
- the 2D graphics engine is a graphics engine for 2D drawing.
- the kernel layer is the layer between hardware and software.
- the kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.
- the corresponding hardware interrupt is sent to the kernel layer.
- the kernel layer processes the touch operation into the original input event (including touch coordinates, time stamp of the touch operation, etc.).
- the original input events are stored in the kernel layer.
- the application framework layer obtains the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the touch operation as a touch click operation, and the control corresponding to the click operation is the control of the camera application icon as an example, the camera application calls the interface of the application framework layer to start the camera application, and then starts the camera driver by calling the kernel layer.
- the camera 193 captures still images or videos.
- the embodiments of the present application are applicable to electronic devices having a display panel, where the display panel has at least two display areas, and these display areas are pre-divided.
- the display panel may be divided into two display areas with similar areas by taking the center line of the display panel as the critical line in advance, or the display area may be divided according to other designs.
- the display area in the embodiment of the present application may have two display requirements, that is, an image needs to be displayed and an image does not need to be displayed.
- the first is that all display areas need to display images (full-screen display), and the second is that all display areas do not need to display images (the full-screen does not display, for example, The rest screen state), the third is that some of the multiple display areas need to display an image and the part of the display area does not need to display an image.
- the electronic device may be a device with a curved display panel
- the first area 101 of the display panel 10 may be configured on the front surface of the electronic device
- the second area 102 (the curved part) may be It is arranged on the side surface of the electronic device.
- FIGS. 3a and 3b a device with a curved display panel having a first area 101 and two second areas 102 is shown.
- both the first area 101 and the second area 102 perform image display; in some implementation scenarios, as shown in FIG. 3b, only the first area 101 is allowed to perform image display, and the The second area 102 does not perform image display.
- the first area 101 and the second area 102 may not display images.
- the electronic device may be foldable, and the corresponding display panel 10 is also flexibly foldable.
- the display area of the display panel 10 may be determined according to the folding position of the electronic device.
- FIG. 4a it is a schematic diagram of the display state of the electronic device in the folded state (which may include the folding process). It can be seen that in the folded state, the first area 101 can display an image, while the second area 102 may not display an image.
- the bending area shown in FIG. 4a can be set as the first area 101, can also be set as the second area 102, and can also be partially set as the first area 101 and partially set as the second area.
- Fig. 4b is a schematic diagram of the display state of the electronic device in the unfolded state (which may include the unfolding process). It can be seen that in the unfolded state, the first area 101 and the second area 102 can both display images. Of course, in some cases, the first area 101 and the second area 102 may not display images.
- the electronic device may also have other functions of split-screen display or single-handed operation.
- some areas may not display images; when using the one-handed operation function, the display area will be reduced to the area that the user can touch with one hand, so there are also some areas where the image is not displayed. Therefore, similar to the above two situations where a fixed part of the display area does not display an image and the other part displays an image, both are applicable to the usage scenarios of the embodiments of the present application.
- the first area 101 displays an image
- the second area 102 does not display an image.
- the first area 101 and the second area 102 may both be in the display state.
- the embodiment of this application is aimed at similar to the above-mentioned electronic devices with implementation scenarios where some areas need to display images and some areas do not need to display images.
- the drive module and the power supply module can stop working for a certain period of time to stop driving and supplying power to pixels in the display area that do not need to display images, or stop driving the touch sensor in the display area that does not need to display images, or stop driving and do not need to display
- the fingerprint sensor in the display area of the image saves the power consumption required by the electronic device to drive and power the display area that does not display the image, and prolongs the battery life of the electronic device.
- the drive control method provided by the embodiment of the present application will be described in detail below. First, the drive control system to which the drive control method of the embodiment of the present application is applicable will be introduced. The drive control system can be applied to the electronic equipment shown in FIG. 1.
- FIGS. 6a and 6b are system architecture diagrams of two drive control systems provided by embodiments of the application. Since the two system architectures are only partially different, the following descriptions that are not clearly distinguished are applicable to the two system architectures shown in FIG. 6a and FIG. 6b.
- the drive control system shown in FIGS. 6a and 6b includes a display panel 10, a processor 20, a display driver 30, a power module 40, a touch driver 50, and a fingerprint driver 60.
- the display panel 10 and the display driver 30 can also be called a display module, a display screen or a display together; wherein, the display panel 10 and the display driver 30 can be independent or packaged together.
- the display panel 10 is used to display images and may include at least two display areas. Illustratively, it is shown in FIGS. 6 a and 6 b that the display panel 10 may include a first area 101 and a second area 102. It is understandable that the display panel 10 may include more display areas, such as a third area, a fourth area, etc., but as long as the display panel 10 is partitioned, no matter how many display areas there are, the drive control methods for different areas are They are all consistent. Therefore, the following embodiments of the present application mainly take two display areas and three display areas as examples for detailed description.
- first area 101 and the second area 102 described above are only a distinction between the display area of the display panel 10, and it does not mean that the display panel 10 is physically divided into two parts.
- the display panel 10 is a continuous and complete display screen.
- the display requirements of the display panel may be the need to display images and the need not to display images. For example, if both the first area 101 and the second area 102 need to display images, then the first area 101 and the second area 102 Image display can be performed on both; if the first area 101 and the second area 102 do not need to display images, the first area 101 and the second area 102 may not perform image display; if the first area 101 needs to display images, the second area The area 102 does not need to display an image, so the first area 101 can perform image display while the second area 102 does not perform image display.
- the display panel 10 includes a plurality of pixels (pixels can be understood as diodes that can independently emit light). After the pixels are driven by the pixel scanning circuit, the pixel data signals can be loaded to the pixels through the data line, and the power supply module 40 provides If the power supply voltage is higher, the pixels can emit light and display different colors, and convert electrical signals into light signals, thereby presenting the image to be output on the display panel 10.
- the first area 101 and the second area 102 respectively have corresponding pixel scanning circuits, which may be referred to as a first pixel scanning circuit and a second pixel scanning circuit, respectively.
- the pixel scanning circuit is composed of a plurality of row scanning lines and a plurality of emission lines shown in FIG. 7, wherein the plurality of row scanning lines can be called a row scanning circuit, and the multiple emission lines can be called a light-emitting scanning circuit.
- multiple scan lines and multiple emission lines may be integrated on the display panel 10, or may be used as an independent module.
- multiple row scan lines may be referred to as a row scan circuit integrated on an array substrate (Gate scan circuit on array, GOA), and multiple emission lines may be referred to as a light emitting scan circuit integrated On the array substrate (Emit scan circuit on array, EOA).
- the entire display panel has 128*64 pixels, and the pixels are arranged neatly in a matrix of rows and columns, that is, each row includes 128 pixels, and each example includes 64 pixels.
- Each row of pixels can be commonly connected to a row scan line and an emission line, and each column of pixels can be commonly connected to a data line.
- the row scan line can be used to drive all pixels in the row of the scan line, so that the pixel data signal transmitted by the data line can be loaded to the pixels of the scan line;
- the emission line can be used to turn on the pixels so that they can be
- the power module 40 continuously emits light under the power supply to perform image display.
- different display areas are allocated different numbers of pixels. Taking two areas of the first area 101 and the second area 102 as an example, if the first area 101 and the second area 102 are areas of equal or close size, they can each include 64*64 pixels; it can also be based on different size requirements. Allocation, for example, the first area 101 includes 32*64 pixels, and the second area 102 includes 96*64 pixels. Similarly, the partitioned first area 101 and second area 102 also include a plurality of pixels, and the pixel arrangement of each display area and the entire display panel and the connection relationship with the row scan lines and emission lines are consistent. of.
- the design difference of the pixel scanning circuit in the embodiment of the present application is mainly that the first pixel scanning circuit and the second pixel scanning circuit are independent of each other, that is, the first pixel scanning circuit and the second pixel scanning circuit are independent of each other.
- the circuits are controlled independently of each other; in other words, the row scanning lines in the first pixel scanning circuit and the row scanning lines in the second pixel scanning circuit are electrically separated from each other, and the emission lines in the first pixel scanning circuit are electrically separated from the second pixel scanning circuit.
- the emission lines are also electrically separated from each other.
- the display driver 30 is used to receive and process display image data (such as photos, videos, etc.) to be input to the display panel 10, and the display driver 30 has a connection relationship with the pixel scanning circuit and the pixels, and can control the driving of the pixel scanning circuit to display The panel 10 performs image display.
- the display driver 30 may also be referred to as a display drive integrated circuit (DDIC) or a display drive chip.
- DDIC display drive integrated circuit
- the display driver 30 may include a data receiving sub-module 301, a data storage sub-module 302, a data processing sub-module 303, and a scanning control sub-module 304.
- the data receiving sub-module 301 is used to receive image data, which usually comes from the processor 20.
- the data receiving sub-module 301 may be a communication interface, specifically MIPI RX (MIPI RX is a data receiving module of the MIPI protocol), which is used to receive and unpack image data.
- the data storage sub-module 302 is used to store the unpacked image data, and specifically may be a random access memory (Random Access Memory, RAM).
- the data processing sub-module 303 is used to process and convert the image data in the data storage sub-module 302 into pixel data signals.
- the image data is generally a digital signal
- the data processing sub-module 303 can perform digital-to-analog conversion on the image data to convert the digital signal into an analog signal.
- the data processing sub-module 303 can also perform voltage amplification on the analog signal, so that the analog signal has sufficient driving capability.
- the pixel data signal output after processing by the scanning processing sub-module 303 can be input to the corresponding pixel through the data line. Further, some additional rendering and other processing may be performed on the image data to have a better display effect. This part of the function may also be implemented by the processor 20.
- the display driver 30 may adopt a Gamma circuit to realize the digital-to-analog conversion function, and may realize voltage amplification of the analog signal through an operational amplifier circuit (Operational Amplifier Circuits).
- the scanning control sub-module 304 is used to drive the pixel scanning circuit corresponding to the display panel 10. In the embodiment of the present application, it is mainly used to independently control the pixel scanning circuit corresponding to each display area. In the embodiment shown in FIG. 6a and FIG. 6b, the scanning control sub-module 304 can independently control and drive the first pixel scanning circuit and the second pixel scanning circuit, that is, the first pixel scanning circuit and the second pixel scanning circuit can be driven separately. In one of them, the first pixel scanning circuit or the second pixel scanning circuit performs the above-mentioned progressive scanning of the pixels.
- the scan control sub-module 304 can drive the corresponding display area at the same time.
- the pixel scanning circuit enables the pixel scanning circuit to start scanning the pixels in the display area so as to load the pixel data signal into the pixels. It should be noted that since the display panel 10 has a large number of pixels and corresponding data lines, if a fixed data output channel is allocated to each data line, the size of the display driver 30 will be very large. Therefore, in some embodiments, the scan control sub-module 304 may include a scan control unit 3042 and a data switch control unit 3041.
- the data switching control unit 3041 may be a multiplexer (DEMUX), which is mainly used to multiplex one data output channel to multiple data lines. For example, when scanning to the first row of pixels, the data switching control unit 3041 may First connect the data output channel to a part of the data line to send the pixel data signal corresponding to this part of the pixel, and then switch the data output channel to connect to another part of the data line to send the pixel data signal corresponding to the other part of the pixel.
- DEMUX multiplexer
- the scanning control unit 3042 is mainly used to implement drive control of the pixel scanning circuit.
- the scanning control unit 3042 may specifically be a scanning control circuit, which can be connected to the first pixel scanning circuit and the second pixel scanning circuit respectively, so that the first pixel scanning circuit and the second pixel scanning circuit can be independently controlled, that is, it can be independently controlled. Scan driving and image display of the first area 101 and the second area 102.
- the scanning control sub-module 304 may include a scanning control unit 3042, and the scanning control unit 3042 It is respectively connected with the row scanning line and the emission line in the first pixel scanning circuit and the second pixel scanning circuit.
- the scanning control unit 3042 may send display driving signals (display driving signal group 1) to the row scanning lines and emission lines in the first pixel scanning circuit.
- the display driving signal group 1 specifically includes a start signal and The clock signal is used to make the first pixel scanning circuit start scanning and driving the pixels row by row.
- the start signal is sent to the row scan line of the first row of the first pixel scan circuit and the emission line is connected, and is used to make the first row start to drive the pixels;
- the clock signal is used to control the first pixel
- the scanning circuit has a line-by-line scanning rhythm, and every time a certain line is scanned, a clock signal can be sent to the row scanning line and the emission line of the corresponding row of the first pixel scanning circuit.
- the row scan line and emission line corresponding to the first row drive all the pixels corresponding to the first row according to the start signal, and in accordance with the rhythm of the clock signal, the second row, third row... Scanning of n rows until all pixels in the first area 101 have been scanned.
- the scan control unit 3042 can also send (display drive signals) the display drive signal group 2 to the row scan line and the emission line corresponding to the first row in the second pixel scan circuit.
- the display drive signal group 2 also includes the start signal. And the clock signal, so that the second pixel scanning circuit can also scan and drive all the pixels in the second region 102.
- the driving capability of the pixel scanning circuit is weak, and it is necessary to load driving signals on both the left and right sides at the same time to drive a whole row of pixels. Therefore, in the embodiment of FIG. 6b, the scanning The control sub-module 304 may include two scan control units, namely, a scan control unit 3042L and a scan control unit 3042R.
- the scanning control unit 3042L and the scanning control unit 3042R can simultaneously send the display driving signal group to the row scanning line and the emission line corresponding to the first row in the first pixel scanning circuit, specifically, the scanning control The unit 3042L can send the display drive signal group 1L to the row scan line and the emission line of the left half corresponding to the first row in the first pixel scan circuit, and the scan control unit 3042R can send the display drive signal group 1L to the right row corresponding to the first row in the second pixel scan circuit. Half of the row scan lines and emission lines send the display drive signal group 1R. Similar to the embodiment of FIG.
- the display driving signal group 1L and the display driving signal group 1R also include a start signal and a clock signal, so that the first pixel scanning circuit on the left half of the first area 101 is opposite to the first area 101
- the left half of the pixels in the first area 101 are scanned and driven row by row, so that the first pixel scanning circuit in the right half of the first area 101 scans and drives the right half of the pixels in the first area 101 row by row. All the pixels of a region 101 are driven in a progressive scan in synchronization.
- the scanning of the second area 102 is also similar, so it will not be repeated here.
- the scan control sub-module 304 may also include two data switching control units 3041, which are respectively used to coordinate the scanning of the left and right scan control units 3042L and the scan control unit 3042R to perform data line scanning. Switch.
- the driving capability of the pixel scanning circuit is better and can drive a whole row of pixels at the same time.
- the design method shown in FIG. 6b can be followed. That is, the scanning control sub-module 304 may include two scanning control units.
- the scanning control unit 3042L is used to control the scanning driving of pixels in odd rows
- the scanning control unit 3042R is used to control scanning driving of pixels in even rows.
- the scanning control unit 3042L and the scanning control unit 3042R can respectively send display driving signals to the row scanning lines and emission lines corresponding to the first row and the second row in the first pixel scanning circuit, so that the first pixel scanning circuit
- the pixels of the odd rows and the pixels of the even rows of one area 101 start to scan and drive row by row, and the two parts jointly complete the progressive scan drive of all the pixels in the first area 101.
- the scanning of the second area 102 is also similar, so it will not be repeated here.
- the scan control sub-module 304 may also include two data switching control units 3041, which are respectively used to coordinate the scanning of the left and right scan control units 3042L and the scan control unit 3042R to perform data line scanning. Switch.
- the driving mode of FIG. 6b is essentially the same as that of FIG. 6a. It should be noted that the separate driving of the left and right parts of the pixel driving circuit in FIG. 6b is different from the principle of driving the first area 101 and the second area 102 in the embodiment of the present application. It should be understood that the driving method of FIG. 6b is to solve the problem of insufficient driving capability or symmetrical layout of the lines. Even if the display panel 10 is not partitioned, the left and right circuits can be driven separately to ensure the driving capability. In fact, the left and right parts of the pixel scanning circuit are still electrically connected. In the partition drive referred to in the embodiment of the present application, the first area 101 and the second area 102 correspond to the first pixel drive circuit and the second pixel drive, respectively. The circuits are electrically separated from each other.
- the line period the time for the pixel scanning circuit to scan one line
- the time to complete a complete screen scan is called one frame.
- the general frame rate is 60 Hz, that is, 60 frames are displayed per second, which is equivalent to scanning all the pixels in the first area 60 times per second, so the human eye cannot observe the progressive display.
- the embodiment of the application since the display area is not partitioned, the entire screen must be scanned line by line at the same time.
- the embodiment of the application since the display area is partitioned, and the scan control unit 3042 can also perform independent drive control on different display areas, the embodiment of the application can not only perform partition drive for different display areas, but also Further adopt the time-sharing driving method.
- the pixel scanning circuit corresponding to each display area may be allocated a corresponding time resource in advance according to the division position of the display area. For example, still taking the first area 101 and the second area 102 as an example, one frame time for scanning one pixel of the display panel can be divided into two periods, a first period and a second period. The first time period can be used for the scanning control unit 3042 to control the working state of the first pixel scanning circuit, and the second time period can be used for the scanning control unit 3042 to control the working state of the second pixel scanning circuit.
- the scanning control unit 3042 can sequentially cyclically control the first pixel scanning circuit to scan and drive in the first time period in each frame period, and in the second time period
- the time period controls the second pixel scanning circuit to perform scanning driving, thereby realizing the driving control of the division and division time.
- the scan control unit 3042 may control the first pixel scanning circuit corresponding to the first area 101 to scan and drive ( Send a driving signal) to display the image in the first area 101; after the scanning and driving of the first area 101 is completed, enter the second time period, and control the second pixel scanning circuit corresponding to the second area 102 to scan and drive (send the driving signal ) To display the image in the second area.
- the scan control unit 3042 can control the first pixel scanning circuit corresponding to the first area 101 to scan and drive during the first time period.
- the scanning control unit 3042 may also control the first pixel scanning circuit corresponding to the first area 101 to continue scanning and driving, so that The image display of an area 101 is refreshed. Although the power consumption is not saved in this way, the display frame rate of the first area 101 is increased, so that the image display effect is better.
- the settings of the first time period and the second time period may not overlap. Specifically, there may be no gap or slight gap between the first time period and the second time period.
- the second time period may start immediately after the end of the first time period; it may also be a period of time after the end of the first time period. Start the second time period. That is to say, the embodiment of the present application may not drive the pixel scanning circuits corresponding to multiple display areas of the display panel 10 at the same time, but sequentially drive the pixel scanning circuits corresponding to different display areas at a specified time.
- the specified time can be the start of the next clock after the pixel scanning of the adjacent display area is completed, or it can be the start of the clock after a specified number of clocks after the pixel scanning of the adjacent display area is completed.
- the processor 20, the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60 in the above-mentioned drive control system are all controlled by a synchronous clock. Therefore, the scanning in the first time period and the second time period are usually The start time is set according to the control rhythm of the synchronization clock, so that multiple drive modules and the processor 20 can cooperate in synchronization.
- the embodiment of the present application implements time-sharing and partitioned drive control on the pixel scanning circuit in the display panel 10.
- the time to complete a scan of a complete screen is called one frame, then in the embodiment of the present application, all displays are completed.
- One scan of the area is also one frame.
- the specific working period of the pixel scanning circuit corresponding to each display area is related to the number of display areas.
- the working period of the pixel scanning circuit corresponding to each display area can be half-frame or close to but less than half-frame; similarly, in the case of three display areas, each The working period of the pixel scanning circuit corresponding to the display area may be one-third of the frame or close to but less than one-third of the frame.
- one or more of the data receiving submodule 301, the data storage submodule 302, and the data processing submodule 303 in the display driver 30 of the embodiment of the present application can be designed to be Independent control, time-sharing control module, and add enable control design to the above modules, that is, the above sub-modules can add corresponding enable ports, and the display driver 30 can control the enable of the above sub-modules to control their work opening And stop.
- MIPI RX, RAM, operational amplifier circuit, DEMUX, and VGM Voltage Gamma model, power supply module for Gamma circuit
- VGM Voltage Gamma model, power supply module for Gamma circuit
- the display driver 30 can be controlled in the first time period and the second time period. All sub-modules in -303 are in the enabled state, in order to receive and process the image data that needs to be displayed in the first area 101 and the second area 102, and send the processed pixel data signal to the corresponding pixel for image processing. show.
- the display driver 30 can control all the sub-modules in 301-303 to be in the enabled state, so as to control the first area 101
- the image data that needs to be displayed is received and processed, and the processed pixel data signals are sent to the corresponding pixels for image display; in the second time period, the display driver 30 may not send pixel data signals to the pixels of the display panel, So that the second area 102 does not display an image, so as to save the power consumption of sending pixel data signals.
- the specific situation of not sending the pixel data signal may be that the display driver 30 still controls all the sub-modules in 301-303 to be in an enabled state, or the display driver 30 controls the data processing sub-module 303 It is in a non-enabled state, or the display driver 30 controls all the sub-modules in 301-303 to be in a non-enabled state.
- the foregoing several situations can all be realized in the second time period when the pixel data signal cannot be sent.
- the foregoing solutions can all save power consumption, but it is understandable that the more sub-modules in the display driver 30 that are in the disabled state in the second time period, the greater the power consumption saved.
- first time period and the second time period are cycled in each frame period, so that the display driver 30 can sequentially cyclically control the enabling of each sub-module in the first time period in each frame period, and in the first time period In the second time period, all or part of the sub-modules are disabled, thereby realizing the drive control of the partition time-sharing.
- the processor 20 is used to receive, generate, and process image data that the display panel 10 needs to display.
- the processor 20 may be a system-on-chip SOC, and may include an image processor 201, an image processing sub-module 202, and a data transmission sub-module 203.
- the image processor 201 may be specifically a GPU (Graphics Processing Unit), which is used to perform image and graphics related operations; the image processing sub-module 202 is used to perform optimization processing such as rendering and frame interpolation on the image processed by the GPU.
- GPU Graphics Processing Unit
- the data transmission sub-module 203 may specifically be MIPI TX (MIPI TX is a data transmission module of the MIPI protocol), which is used to send and compress the image data processed by the image processor 201 and the image processing sub-module 202 to facilitate the display driver 30 After further processing, it is displayed on the display panel 10.
- MIPI TX is a data transmission module of the MIPI protocol
- the processor 20 may also determine the time resources for sending image data of different regions to the display driver 30 according to display requirements.
- the allocated time resource is used to indicate that the image data can be sent in the time period, but in fact the time resource may or may not be occupied, that is, the image data may not be sent in the time period. For example, still taking the first area 101 and the second area 102 as an example, one frame time for scanning a pixel of a completed display panel can be divided into two periods, a first period and a second period.
- the first time period can be used to send the image data of the first area 101 to the display driver 30, and the second time period can be used to send the image data of the second area 101 to the display driver 30, but not necessarily in the corresponding Send image data within the time period.
- the processor 20 may send the image data of the first area 101 in the first time period and send the image data of the second area 102 in the second time period.
- the processor 20 may send the image data of the first area 101 in the first time period, and stop sending the image data in the second time period.
- the power consumption required for the processor 20 to send the image data in the second time period is saved.
- the power module 40 is used to supply power to the display driver 30, the touch driver 50, the fingerprint driver 60 and the pixels in the display panel 10. It can be understood that the display driver 30, the touch driver 50, and the fingerprint driver 60 need to be powered for data processing or receiving.
- the power module 40 can provide digital power, core power, and analog power to the display driver 30, and the power module 40 can also provide analog power and digital power to the touch driver 50 and the fingerprint driver 60.
- the power module 40 may be integrated in a power management module, and may also be referred to as a power integrated circuit (Power Integrated Circuit), a power control circuit, a power chip, or a power supply.
- Power Integrated Circuit Power Integrated Circuit
- the power supply module 40 is connected to all the pixels in the first area 101 and all the pixels in the second area 102, that is, the power supply module 40 performs independent operations on the pixels in the first area 101 and the pixels in the second area 102. Power supply, the power supply of the first area 101 and the second area 102 does not affect each other. Further, when there are more display areas, the power supply module 40 is connected to the pixels of each display area respectively, so as to realize independent power supply in different areas. Specifically, ELVDD1 (anode voltage) and ELVSS1 (cathode voltage) in FIGS.
- 6a and 6b are the positive and negative power supply voltages provided by the power supply module 40 for the pixels in the first region 101, respectively, and ELVDD2 and ELVSS2 are the power supply modules 40, respectively. Positive and negative power supply voltages for pixels in the second region 102.
- the display driver 30 drives the pixels in the first area 101 or the second area 102 of the display panel 10, the driven pixels can emit light for image display through the power supply of the power supply module 40.
- a corresponding touch sensor is configured on the display panel 10 of the present application, thereby forming a touch screen.
- the display panel 10 has a corresponding touch scanning circuit, and the touch scanning circuit is used to scan and drive the touch sensors of the display panel 10 in order to detect touch signals.
- the drive control system may further include a touch driver 50.
- the touch driver 50 may send a touch driving signal to the touch scanning circuit, so that the touch scanning circuit drives the corresponding touch sensor, so as to detect the touch signal.
- the touch driver 50 may also be called a touch integrated circuit (Touch Integrated Circuit)/touch chip, touch drive circuit (Touch Drive Integrated Circuit)/touch drive chip, touch control circuit/touch Control control chip/touch controller, etc.
- the touch sensor, the touch scanning circuit, and the touch driver 50 may be referred to as a touch module.
- the touch scanning circuit can have two design schemes, one is a mutual-capacitive type and the other is a self-capacitive type.
- the two design schemes are respectively described below.
- the touch scan circuit includes vertical touch scan lines (for example, TX1_1 to TX1_N and TX2_1 to TX2_M in FIG. 8a) and horizontal touch signal receiving lines (for example, in RX 1 to RX K in FIG. 8a, the point where each touch scan line crosses the touch signal receiving line can be regarded as a touch sensor.
- the touch scan line is used to drive a row of touch sensors corresponding to the line.
- the touch scan line receives a touch drive signal from the touch driver 50, the row of touch sensors will start to detect touch signals , And feedback the detected touch signal to the touch driver 50 through the touch signal receiving line connected with the touch sensor.
- the touch driver 50 controls each touch scan line separately, and sends a touch drive signal to each touch scan line in turn according to the scan control clock.
- the touch scanning circuit includes a touch scanning line independently connected to each touch sensor (for example, SX1_1_1 ⁇ SX1_k_o and SX2_1_1 ⁇ SX2_k_q in Figure 8b), touch
- the control scan line is not only used to drive a touch sensor corresponding to the touch scan line, but also used to feed back the touch signal detected by the touch sensor to the touch driver 50.
- the touch scan line receives the driving signal of the touch driver 50, a touch sensor connected to the touch scan line starts to detect the touch signal, and detects the touch signal through the same touch scan line. The touch signal is fed back to the touch driver 50.
- the touch driver 50 controls each touch scan line separately, and sends a touch drive signal to each touch scan line in turn according to the scan control clock.
- the display panel 10 is divided into multiple display areas, and the corresponding touch scanning circuits and touch sensors provided on the display panel 10 are also divided into multiple areas .
- the first area 101 and the second area 102 respectively have corresponding touch sensors and touch scanning circuits.
- the touch scanning circuits corresponding to the first area 101 and the second area 102 in the embodiment of the present application may still be connected or electrically separated. . This mainly depends on the design scheme adopted by the touch scanning circuit and whether the display panel 10 divides the display area horizontally or vertically.
- the display area is divided horizontally, that is, the display panel 10 has multiple display areas in the horizontal direction (left and right direction);
- the display area is divided vertically, that is, the display panel 10 has multiple display areas in the vertical direction (up and down direction).
- each touch scan line is independently controlled, so the first area 101 and the second area 102 respectively correspond to one of the touch scan circuits
- the space can still remain connected without electrical separation.
- FIG. 8a shows the touch scanning circuit corresponding to the first area 101 and the second area 102 respectively.
- the first area 101 is controlled by the touch scan lines of TX1_1 ⁇ TX1_N. If the touch driver 50 only drives the touch sensor of the first area 101, then it can only touch each of TX1_1 ⁇ TX1_N.
- the scan lines send drive signals in sequence.
- each touch scan line of the self-capacitive type described above is independently connected to a touch sensor, the touch drive circuits corresponding to multiple display areas still do not need to be electrically isolated. But for the mutual-capacitive design, because the touch scan line is vertical, if the touch drive circuit is not partitioned, then a whole column of touch sensors corresponding to the touch scan line will be driven together, which cannot be realized. Independent control of partitions. Therefore, if the display panel 10 adopts a vertical division method and the touch drive circuit is of a mutual capacitance type, it is necessary to electrically separate the touch scanning circuits corresponding to the first area 101 and the second area 102 respectively.
- the first area 101 corresponds to the first touch scanning circuit
- the second area 102 corresponds to the second touch scanning circuit.
- the first touch scanning circuit and the second touch scanning circuit are independent of each other, and may specifically be the first touch scanning circuit.
- the touch scan line of the control scan circuit and the touch scan line of the second touch scan circuit are electrically independent of each other.
- the touch driver 50 can independently drive and control the touch scanning circuits corresponding to different display areas. Therefore, the embodiment of the present application may further adopt time-sharing for the touch scanning circuits corresponding to different display areas. Drive way.
- the corresponding time resource may be allocated to the touch scanning circuit corresponding to each display area according to the division position of the display area in advance. For example, still taking the first area 101 and the second area 102 as an example, one frame time for scanning a touch sensor of the display panel can be divided into two periods, a third period and a fourth period.
- the third time period can be used for the touch driver 50 to control the working state of the first touch scanning circuit
- the fourth time period can be used for the touch driver 50 to control the working state of the second touch scanning circuit.
- the third time period and the fourth time period are circulated, so that the touch driver 50 can be cyclically controlled in each frame period to control the first touch scanning circuit to scan and drive in the third time period.
- the second touch scanning circuit is controlled for scanning and driving in four time periods, thereby realizing the driving control when the partition is added.
- the touch driver 50 may control the touch scanning circuit corresponding to the first area 101 to scan and drive (send) during the third time period.
- Touch drive signal to enable the touch sensor 50 corresponding to the first area 101 to perform touch signal detection; after the touch scanning circuit corresponding to the first area 101 is scanned and driven, enter the fourth time period, and then control the first area 101
- the touch scanning circuit corresponding to the second area 102 performs scanning driving (sending a touch driving signal), so that the touch sensor 50 corresponding to the second area performs touch signal detection.
- the touch sensor 50 can control the first touch scanning circuit corresponding to the first area 101 to scan and drive during the third time period. (Send touch drive signal), so that the touch sensor 50 corresponding to the first area 101 performs touch signal detection; after the scanning and driving of the first area 101 is completed, enter the fourth time period, and control the touch sensor 50 corresponding to the second area 102
- the second touch scanning circuit does not perform scanning driving (not sending a touch driving signal), so that the touch sensor 50 corresponding to the second area 102 does not perform touch signal detection. In this way, the power consumption required by the second touch scanning circuit when scanning the touch sensor in the second area 102 in the fourth time period is saved.
- the touch driver 50 may also control the first touch scanning circuit corresponding to the first area 101 to continue scanning. Drive, so that the touch signal detection of the first area 101 is activated again. Although the power consumption is not saved in this way, the touch detection frequency of the first area 101 is increased, and the touch sensing sensitivity is better.
- the settings of the third time period and the fourth time period may not overlap.
- the third time period may be consistent with or inconsistent with the first time period
- the fourth time period may be consistent with or inconsistent with the second scan.
- the fourth time period can start immediately after the third time period ends; it can also be a while after the third time period ends. Start the fourth time period. That is to say, the embodiment of the present application may not simultaneously drive the touch scan circuits corresponding to multiple display areas of the display panel 10, but sequentially drive the touch scan circuits corresponding to different display areas at a specified time.
- the specified time here can be the start of the next clock after the touch sensor scanning of the adjacent display area is completed, or it can be the start of the clock after a specified number of clocks after the touch sensor scanning of the adjacent display area is completed ,
- This application does not specifically limit this.
- the processor 20, the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60 in the above-mentioned drive control system are all controlled by synchronous clocks. Therefore, the scanning in the third and fourth time periods is usually The start time is set according to the control rhythm of the synchronization clock, so that multiple drive modules and the processor 20 can cooperate in synchronization.
- the display panel 10 of the present application may also be configured with a corresponding fingerprint sensor.
- the display panel 10 has a corresponding fingerprint scanning circuit, and the fingerprint scanning circuit is used to sequentially scan and drive the fingerprint sensor of the display panel 10 to detect fingerprint signals.
- the drive control system may further include a fingerprint driver 60.
- the fingerprint driver 60 can send a fingerprint driving signal to the fingerprint scanning circuit, so that the fingerprint scanning circuit drives the corresponding fingerprint sensor, so as to detect the fingerprint signal.
- the fingerprint sensor may be distributed on the entire display panel 10, or may be distributed in a part of the display panel 10, so it can be applied to electronic devices with full-screen fingerprint recognition function, and also applicable to regional fingerprints. Electronic equipment with recognition function.
- the fingerprint sensor is similar to the touch sensor, the function and layout of the fingerprint scanning circuit and the touch scanning circuit are also similar, and the module functions and drive control methods of the fingerprint driver 60 and the touch driver 50 are also similar.
- the control driver 50 and the touch scanning circuit will not be repeated here.
- the display panel 10 is divided into multiple display areas, and the corresponding fingerprint scanning circuit and fingerprint sensor provided on the display panel 10 are also divided into multiple areas.
- the fingerprint driver 60 can The fingerprint scanning circuits corresponding to different display areas are independently controlled. For example, only the fingerprint sensor in the first area 101 may be driven, and then only the fingerprint sensing driving lines corresponding to the first area 101 may be sent in sequence according to the scan control clock.
- the fingerprint driver 60 can perform independent drive control on the touch drive circuits corresponding to different display areas. Therefore, the embodiment of the present application may further adopt time-sharing drive for the touch drive circuits corresponding to different display areas. The way.
- the fingerprint scanning circuit corresponding to each display area can be allocated a corresponding time resource in advance according to the division position of the display area. For example, still taking the first area 101 and the second area 102 as an example, one frame time for scanning a fingerprint sensor that completes the display panel can be divided into two periods, the fifth time period and the sixth time period.
- the fifth time period can be used for the fingerprint driver 60 to control the working state of the first fingerprint scanning circuit
- the sixth time period can be used for the fingerprint driver 60 to control the working state of the second fingerprint scanning circuit.
- the fifth time period and the sixth time period are circulated, so that the fingerprint driver 60 can control the first fingerprint scanning circuit to scan and drive in the fifth time period in turn in each frame period, and in the sixth time period
- the segment controls the second fingerprint scanning circuit to scan and drive, so as to realize the drive control when the partition is added.
- the fingerprint driver 60 can control the fingerprint scanning circuit corresponding to the first area 101 to scan and drive (send fingerprint drive) in the fifth time period. Signal), so that the fingerprint sensor 50 corresponding to the first area 101 performs fingerprint signal detection; after the fingerprint scanning circuit corresponding to the first area 101 is scanned and driven, enter the sixth time period, and then control the fingerprint corresponding to the second area 102
- the scanning circuit performs scanning driving (sending a fingerprint driving signal), so that the fingerprint sensor 50 corresponding to the second area performs fingerprint signal detection.
- the fingerprint sensor 50 can control the first fingerprint scanning circuit corresponding to the first area 101 to scan and drive (send) in the fifth time period.
- Fingerprint drive signal so that the fingerprint sensor 50 corresponding to the first area 101 performs fingerprint signal detection; after the scanning and driving of the first area 101 is completed, the sixth time period is entered to control the second fingerprint scanning circuit corresponding to the second area 102
- the scan drive is not performed (the fingerprint drive signal is not sent), so that the fingerprint sensor 50 corresponding to the second area 102 does not perform fingerprint signal detection. In this way, the power consumption required by the second fingerprint scanning circuit when scanning the fingerprint sensor in the second area 102 in the sixth time period is saved.
- the fingerprint driver 60 may also control the first fingerprint scanning circuit corresponding to the first area 101 to continue scanning and driving.
- the fingerprint signal detection in the first area 101 is activated again. Although the power consumption is not saved in this way, the fingerprint detection frequency of the first area 101 is increased, and the fingerprint sensing sensitivity is better.
- the settings of the fifth time period and the sixth time period may not overlap.
- the fifth time period may be consistent with or inconsistent with the first time period
- the sixth time period may be consistent with or inconsistent with the second scan.
- the sixth time period can be started immediately after the fifth time period ends; or the fifth time period can be restarted some time after the fifth time period ends. Start the sixth time period. That is to say, the embodiment of the present application may not simultaneously drive the fingerprint scanning circuits corresponding to multiple display areas of the display panel 10, but sequentially drive the fingerprint scanning circuits corresponding to different display areas at a specified time.
- the specified time can be the start of the next clock after the fingerprint sensor of the adjacent display area is scanned, or it can be the start of the clock after a specified number of clocks after the fingerprint sensor of the adjacent display area is scanned.
- the application does not make specific restrictions on this.
- the processor 20, the display driver 30, the power module 40, the fingerprint driver 60 and the fingerprint driver 60 in the above-mentioned drive control system are all controlled by a synchronous clock. Therefore, the scanning in the fifth time period and the sixth time period usually starts The time is set according to the control rhythm of the synchronized clock, so that multiple drive modules and the processor 20 can cooperate in synchronization.
- the processor 20, the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60 all have the ability to implement corresponding functions for the first area 101 and the second area 102.
- (Display, power supply, touch control, fingerprint recognition) time-sharing partition drive control At least one or more combinations of the above-mentioned multiple functional devices can implement time-sharing and partitioned drive control. That is, it may be that only the display driver 30 implements the time-sharing partitioned display drive control, or only the power module 40 implements the time-sharing partitioned power supply drive control, or only the touch driver 50 implements the time-sharing partitioned touch drive control.
- the fingerprint driver 60 can also be the fingerprint driver 60 to implement time-sharing and partitioned fingerprint recognition drive control; it can also be a combination of the above-mentioned drive controls, for example, display drive control, power supply drive control, touch drive control and fingerprint recognition drive control can all use time-sharing Partition control method.
- the driving control method can be applied to the electronic device shown in FIG. 1.
- FIGS. 9 and 10 show a driving control method when the display panel 10 has two display areas (a first area 101 and a second area 102).
- FIG. 9 shows the driving control method when the image is required to be displayed in the first area 101 and the second area 102 is the driving control method when the image does not need to be displayed;
- FIG. 10 shows that the first area 101 and the second area 102 are both displayed The drive control method in the state. Comparing FIG. 9 and FIG.
- the core idea of the drive control method of the embodiment of the present application is: when the time resources (first time period) of the display area of the displayed image are required, the display driver 30, the power module 40, and the touch
- the sub-modules of the control driver 50 and fingerprint driver 60 and the processor 20 (SOC) are in working or open state to ensure the processing and transmission of image data in the display area, and ensure the driving and power supply of pixels, so as to ensure the display of pixels in the display area.
- Image ensure the driving of the touch sensor 50, thereby ensuring the detection of touch signals
- At least one of the display driver 30, the power module 40, the touch driver 50, the fingerprint driver 60 or/and the processor 20 (SOC) is required Part of the sub-modules stop working or sleep, that is, stop processing and transmission of image data in the display area, stop driving and power supply of pixels, stop driving the touch sensor 50, and stop driving the fingerprint sensor 60.
- SOC processor 20
- each driving module and scanning circuit need to generate a large amount of power consumption as when the image needs to be displayed.
- the embodiment of the present application is based on an improved drive control system and adopts a time-sharing and partitioned drive control method, which greatly saves the power consumption of various aspects of the electronic device in the display area that does not need to display an image.
- three display areas are taken as examples to further describe the drive control method of each module involved in the drive control system in the embodiment of the present application.
- the three display areas can also be regarded as including a first area and two second areas, or can be regarded as including two first areas and a second area, and the drive control of the two display areas is akin.
- the display requirements of each display area may be determined by the processor 20.
- the processor 20 can receive various operations and instructions of the user on the electronic device. When some operations or instructions are triggered, the processor 20 can determine which display areas need to display images and which display areas do not need to display images. . For example, when the processor 20 receives a one-handed operation instruction triggered by the user, the processor 20 will automatically correspond to whether each display area of the display panel 10 of the electronic device needs to display an image or does not need to display an image in the one-handed operation state. For example, the first area 101 needs to display an image, but the second area 102 does not need to display an image.
- the processor 20 may also receive parameter information transmitted by various sensors, and some parameter information may indicate which display areas need to display images and which display areas do not need to display images.
- the proximity light sensor can detect the approach of an object by detecting reflected light. When the proximity light sensor detects sufficient reflected light, it can send status information to the processor 20, and the processor 20 can determine the electronic The casings of the device are very close, that is, the electronic device is turning into a folded state or is already in a folded state. At this time, the processor 20 will automatically correspond to each display area of the display panel 10 of the electronic device in the folded state, the first area 101 needs to display an image, and the second area 102 does not need to display an image.
- the processor 20 may send first status indication information to the target drive module.
- the first status indication information is used to indicate the display requirements of each display area, that is, which display areas need to display images , Which display areas do not need to display images.
- the target driving module may include at least one of the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60, so that the above-mentioned modules can adopt different driving control methods for different display areas.
- which module the processor 20 sends the first status indication information to is related to which modules adopt the partitioned time-sharing drive control mode. If some modules do not use the partitioned time-sharing drive control mode, then what display state the display area is in It does not affect its driving control mode, and the processor 20 does not need to send the first status indication information to these modules.
- the instruction information directly sent by the third-party entity may not be parsed by the processor 20, or may be directly sent by the third-party entity.
- the proximity light sensor can directly send status information to at least one of the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60. After receiving the status information, the above-mentioned module can directly determine the current drive control that needs to be adopted. Way.
- the display requirements of the three display areas can have the following situations:
- At least one display area does not need to display an image, and other display areas need to display an image, that is, part of the display area needs to display an image and part of the display area does not need to display an image.
- the third situation actually includes a variety of situations, but the actual processing methods are the same. Therefore, in the following embodiments of the present application, the first area 101 and the third area 103 are different from each other.
- the need to display an image and the second area 102 need to display an image are taken as an example for detailed description, and other situations can refer to this example.
- the pixel scanning circuits corresponding to the first area 101, the second area 102, and the third area 103 are a first pixel scanning circuit, a second pixel scanning circuit, and a third pixel scanning circuit;
- the touch scanning circuits corresponding to the three areas 103 are the first touch scanning circuit, the second touch scanning circuit, and the third touch scanning circuit; the fingerprint scanning corresponding to the first area 101, the second area 102, and the third area 103
- the circuits are respectively a first fingerprint scanning circuit, a second fingerprint scanning circuit and a third fingerprint scanning circuit.
- the preset pixel scanning circuit needs to scan the pixels in the first area 101, the second area 102, and the third area 103.
- the time resources are the first time period, the second time period, and the third time period, respectively.
- the three time resources are not Coincident, and the three cycles continuously cycle (usually scan from right to left, that is, after the third time period is the second time period, after the second time period is the first time period, and after the first time period is again The third time period, in turn);
- the preset touch scanning circuit needs to scan the time resources of the touch sensors in the first area 101, the second area 102, and the third area 103 as the fourth time period and the fifth time, respectively
- the three time resources do not overlap with the sixth time period, and the three time resources cyclically and continuously (that is, the fifth time period is after the sixth time period, the fourth time period is after the fifth time period, and the fourth time After this period is the sixth time period, in turn);
- the preset fingerprint scanning circuit needs to scan the fingerprint sensors in the first area
- the time resources are the seventh time period and the first time period respectively.
- the eighth time period and the ninth time period the three time resources do not overlap, and the three time resources circulate continuously (that is, the eighth time period is after the ninth time period, and the seventh time period is after the eighth time period. After the seventh time period is the ninth time period, which loops in turn).
- the processor 20 may process the image data corresponding to the first area 101, the second area 102, and the third area 103, specifically, It is the processing procedure of the image processor 201 and the image processing sub-module 202 mentioned above. And the processor 20 will send the image data corresponding to the display area to the display driver 30 according to each preset time resource. For example, when it is currently in the first time period, the processor 20 sends the image data of the first area 101 to the display driver 30.
- the processor 20 determines that there is no need to display images in the first area 101 and the third area 103, and the second area 102 needs to display an image, the processor 20 will stop processing the image data in the first area 101 and the third area 103. For generation and processing, only the image data of the second region 102 is processed.
- stop the work of the data transmission sub-module 203 that is, stop sending the image data of the third area 103 to the display driver 30; when it is detected that it is in the second time period, start the data transmission sub-module 203 Start sending the image data of the second area 102 to the display driver 30; when it is detected that it is in the first time period, stop the work of the data transmission sub-module 203, that is, stop sending the image data of the first area 101 to the display driver 30 data.
- Figure 11 shows the signal control timing diagram of the data transmission sub-module 203 of the processor 20 and the data receiving sub-module 301 of the display driver 30 in one frame.
- the data transmission sub-module 203 is MIPI TX
- the LP (LowPower) working mode is adopted respectively, that is, only the initialization signal is given, and no data is transmitted; in the second time period, the HS (HighSpeed) working mode is adopted, that is, the data is transmitted at a high speed.
- the processor 20 does not process the image data in the display area where the image does not need to be displayed, and does not perform data transmission when the time resources of the display area in which the image does not need to be displayed are not required; For processing, data transmission is only performed when the time resources of the display area of the displayed image are needed. In this way, the power consumption of the processor 20 in the processing and transmission of image data in the display area where the image does not need to be displayed can be completely saved.
- Display panel 10 display driver 30 and power supply module 40
- the display driver 30 mainly drives and controls the pixel scanning circuit
- the pixel scanning circuit drives and controls the pixels in the display panel 10
- the power module 40 supplies power to the pixels in the display panel 10.
- the modules are closely related at first, and they are all driving control of the display, so they are explained together.
- the display driver 30 determines that the first area 101 and the third area 103 do not need to display an image, and the second area 102 needs to display an image, when it is detected that it is in the third time period .
- the display driver 30 stops the operation of at least one of the data receiving submodule 301, the data storage submodule 302, the data processing submodule 303, and the data switching control unit 3041, that is, stops the enabling of the at least one submodule;
- start the work of the data receiving sub-module 301, the data storage sub-module 302, the data processing sub-module 303, and the data switching control unit 3041 that is, to enable the above-mentioned sub-modules;
- stop the operation of at least one of the data receiving submodule 301, the data storage submodule 302, the data processing submodule 303, and the data switching control unit 3041 that is, stop the enabling of the above at least one
- Figure 12 shows a timing diagram of the enable signal control of each sub-module or unit in the display driver 30 in one frame.
- the data processing sub-module 303 is a Gamma circuit
- the power supply module corresponding to the Gamma circuit can be enabled.
- VGM realizes the enable control of Gamma circuit.
- the display driver 30 only sends data to the data receiving sub-module 301 (MIPI RX), the data storage sub-module 302 (RAM), the data processing sub-module 303 (Gamma circuit), and the data switching control unit 3041 during the second time period.
- the corresponding enable port sends an enable signal, and the enable is stopped in the first time period and the third time period.
- MIPI RX since MIPI RX in the display driver is only enabled near the second time period, MIPI TX for SOC is similar. MIPI RX uses LP (Low Power ) Working mode, that is, only the initialization signal is given, and no data is transmitted; the HS (HighSpeed) working mode is adopted in the second time period, that is, the data is received at high speed.
- LP Low Power
- HS HighSpeed
- the scanning control unit 3042 in the display driver 30 is used to drive the pixel scanning circuit to scan the pixels, because at least one of the above-mentioned sub-modules and units of the display driver 30 is in the first time period and the third time period.
- the scanning control unit 3042 will not drive the first pixel scanning circuit and the third pixel scanning circuit, so the first pixel scanning circuit
- the third pixel scanning circuit also does not drive the corresponding pixels, and the pixels in the first area 101 and the third area 103 do not display images.
- FIG. 13a it is a driving timing signal diagram of a pixel scanning circuit in a frame based on the driving control system of FIG. 6b. Specifically, after the display driver 30 determines that the first area 101 and the third area 103 do not need to display images, and the second area 102 needs to display images, the scan control unit 3042 does not work in the first time period and the third time period.
- the emission lines (EOA-1 Right, EOA-1 Left) and row scan lines (GOA-1 Right, GOA) of the left and right parts of the first pixel scanning circuit corresponding to the first area 101 will not be sent -1 Left)
- Send the display drive signal group (start signal and clock signal) it will not send the emission line (EOA-3 Right, EOA-3) of the third pixel scanning circuit corresponding to the third area 103 in the third time period.
- Left) and row scan lines (GOA-3 Right, GOA-3 Left) send the display drive signal group (start signal and clock signal). Therefore, the first pixel scanning circuit and the third pixel scanning circuit will not drive the corresponding pixels.
- the scan control unit 3042 When the scan control unit 3042 is in the second time period, it sends the emission lines (EOA-2 Right, EOA-2 Left) and the row scan line (GOA -2 Right, GOA-2 Left) Send the display drive signal group (start signal and clock signal).
- FIG 13a shows the timing signal diagram of the three groups of transmission lines and row scan lines (GOA STV1, EOA STV1) (GOA STV2, EOA STV2) (GOA STV3, EOA STV3) (the signals of the left and right parts are the same, so It can be seen that in the second time period corresponding to the second area 102, the start signal from the scanning control unit 3042 appears in EOA STV2 and GOA STV2 (the start signal levels of EOA STV2 and GOA STV2 are opposite) , So that the second pixel scanning circuit corresponding to the second area 102 starts to scan and drive the pixels in the area row by row according to the clock signal.
- the scanning control unit 3042 does not work and the pixel scanning circuit corresponding to the display area does not work when the time resources corresponding to the display area where the image is not displayed are not required. Therefore, compared with the prior art, the embodiment of the present application can save scanning The power consumption required for the control unit 3042 and the pixel scanning circuit to work during this period of time.
- the power module 40 can independently supply power to pixels in different display areas. Therefore, when the power module 40 determines that the first area 101 and the third area 103 are in the second area 102 that does not need to display images, After being in the display state, it is possible to only supply power to the pixels in the second area 102, and there is no need to supply power to the pixels in the first area 101 and the third area 103.
- the power supply enable of the second area 102 can be turned on, and the power supply module 40 uses ELVDD2 and ELVSS2 of the output voltage to the pixels of the second area 102 are enabled, and the two cross voltages to make the light-emitting device normally emit light, thereby supplying power to the pixels of the second area 102, so that the second area 102 can always display images; correspondingly ,
- the supply voltage output ELVDD2 and ELVSS2 of the first area 101 and the third area 103 are not enabled, so that the voltage difference between the two voltages cannot reach the voltage difference of the normal light emission of the light-emitting device, so that the voltage difference between the first area 101 and the third area 103
- the pixels are powered, so that the first area 101 and the third area 103 do not display images.
- the power module 40 independently supplies power to the pixels in different display areas, so the pixels in the display area that do not need to display images can be stopped, and only supply power to the display area in the display state, thereby saving the display of images that do not need to be displayed.
- the power consumption required to supply power to the pixels in the area is not limited.
- the above implementation is to save power consumption.
- Another implementation that will be described below is to increase the display scanning frequency of the second area 102, that is, the frame rate, while maintaining the same power consumption.
- the display quality of the second area 102 is improved to provide a better user experience for scenes such as games.
- the difference from the previous implementation is that in another implementation of the embodiment of the present application, when the display driver 30 determines that the first area 101 and the third area 103 do not need to display an image, and the second area 102 needs to display an image, , The sub-modules or units of the display driver 30 can still be in the enabled state. However, in the first time period, the second time period, and the third time period, the display driving signal group is sent to the second pixel scanning circuit corresponding to the second area 102 to drive three of the second pixel scanning circuit in a frame. This time resource scans and drives the pixels of the second region 102 three times.
- FIG. 13b it is a driving timing signal diagram of another pixel scanning circuit in one frame based on the driving control system of FIG. 6b.
- the scan control unit 3042 performs the first time period, the second time period, and the third time period.
- the emission lines (EOA-2 Right, EOA-2 Left) and the row scan lines (GOA-2 Right, GOA-2 Left) of the left and right parts of the second pixel scanning circuit corresponding to the second area 102 will be sent.
- Send the display drive signal group start signal and clock signal).
- FIG. 13b shows the timing signal diagram of the three groups of transmission lines and row scanning lines (GOA STV1, EOA STV1) (GOA STV2, EOA STV2) (GOA STV3, EOA STV3) (the signals of the left and right parts are the same, so (Represented together in the figure), it can be seen that EOA STV2 and GOA STV2 have the start signal from the scanning control unit 3042 (EOA STV2 and GOA STV2 in the first time period, the second time period, and the third time period). The starting signal level is opposite), so that the second pixel scanning circuit corresponding to the second area 102 starts to scan and drive the pixels in the area row by row according to the clock signal at all three time resources.
- the display scanning frame screen will be 3 times the previous, that is, 180 Hz, which greatly improves the refresh rate of the displayed image and the screen display effect.
- the power supply module 40 can still provide power supply by partition, which is consistent with the power supply manner in the previous implementation manner, and therefore will not be repeated.
- the touch driver 50 determines that the first area 101 and the third area 103 do not need to display images, and the second area 102 needs to display images, it is in the fourth time period and the second time period.
- the touch driver 50 will not drive the first touch scanning circuit and the third touch scanning circuit, so the first touch scanning circuit and the third touch scanning circuit will not drive the corresponding touch.
- the touch sensors in the first area 101 and the third area 103 will not detect touch signals.
- the touch driver 50 will drive the second touch scanning circuit, so the second touch scanning circuit will drive the corresponding touch sensor, and the touch sensor in the second area 102 will touch Control signal for detection.
- FIG. 14a it is a driving timing signal diagram of a mutual-capacitive touch scanning circuit in one frame. Specifically, after the touch driver 50 determines that the first area 101 and the third area 103 do not need to display images, and the second area 102 needs to display images, the touch driver 50 does not need to display images in the fourth time period and the sixth time period. Work, that is, it will not send touch drive signals to the touch scan lines (TX1_1 to TX1_N) of the first touch scanning circuit corresponding to the first area 101 in the fourth time period; nor will it send touch drive signals to the first touch scan line in the sixth time period.
- the touch scan lines (TX3_1 to TX1_L) of the third touch scan circuit corresponding to the three regions 103 send touch drive signals. Therefore, the first touch scanning circuit and the third touch scanning circuit will not drive the corresponding touch sensors.
- the touch driver 50 sends touch driving signals to the touch scan lines (TX2_1 to TX2_M) of the second touch scan circuit corresponding to the second area 102.
- 14a shows the timing signal diagrams of TX1_1 ⁇ TX1_N, TX2_1 ⁇ TX2_M, and TX3_1 ⁇ TX1_L.
- TX2_1 ⁇ TX2_M received signals from the touch driver 50
- the second touch scanning circuit corresponding to the second area 102 starts to scan and drive the touch sensors in the area sequentially according to the drive signal.
- FIG. 15a it is a driving timing signal diagram of a self-capacitive touch scanning circuit in one frame.
- the touch driver 50 does not work in the fourth time period and the sixth time period.
- the touch scan lines (SX2_1_1 to SX2_k_q) send touch drive signals, so that the second touch scan circuit corresponding to the second area 102 starts to scan and drive the touch sensors in the area sequentially according to the drive signals.
- the embodiment of the present application does not need to display the image in the display area.
- the touch driver 50 does not work, and the touch scanning circuit corresponding to the display area does not work. Therefore, the power consumption for the touch driver 50 and the touch scanning circuit to work during this period of time can be saved.
- the above implementation is to save power consumption.
- Another implementation that will be described below is to increase the touch scanning frequency of the second area 102 and increase the second area 102 while maintaining the same power consumption.
- the touch report rate is higher, thereby improving the touch sensitivity of the second area 102, and providing a better user experience for scenes such as games.
- the difference from the previous implementation is that in another implementation of the embodiment of the present application, when the touch driver 50 determines that the first area 101 and the third area 103 do not need to display images, the second area 102 needs to display images After that, in the fourth time period, the fifth time period, and the sixth time period, a touch driving signal is sent to the second touch scanning circuit corresponding to the second area 102 to drive the second touch scanning circuit for one frame
- the three time resources in the second area 102 scan and drive the touch sensor three times.
- FIG. 14b it is a driving timing signal diagram of another mutual-capacitive touch scanning circuit in one frame. Specifically, after the touch driver 50 determines that the first area 101 and the third area 103 do not need to display an image, and the second area 102 needs to display an image, the touch driver 50 performs the fourth time period, the fifth time period, and the second time period. In the six time periods, touch drive signals are sent to the touch scan lines (TX2_1 to TX2_M) of the second touch scan circuit corresponding to the second area 102. Referring to the timing signal diagram of TX2_1 to TX2_M shown in FIG.
- TX2_1 to TX2_M all received touch drive signals from the touch driver 50 in the fourth time period, the fifth time period, and the sixth time period.
- the second touch scanning circuit corresponding to the second area 102 starts to scan and drive the touch sensors in the area sequentially according to the driving signals at all three time resources.
- FIG. 15b it is a driving timing signal diagram of another self-capacitive touch scanning circuit in one frame. Similar to the mutual capacitance solution, the touch driver 50 will send the touch scan line (SX2_1_1) of the second touch scan circuit corresponding to the second area 102 during the fourth, fifth, and sixth time periods ⁇ SX2_k_q) Send the touch drive signal.
- SX2_1_1 to SX2_k_q shown in FIG. 15b, it can be seen that SX2_1_1 to SX2_k_q all received the touch driving signal from the touch driver 50 in the fourth time period, the fifth time period, and the sixth time period.
- the second touch scanning circuit corresponding to the second area 102 starts to scan and drive the touch sensors in the area sequentially according to the driving signals at all three time resources.
- the touch scan frame screen will be 3 times the previous one, that is, 180 Hz, which greatly improves the touch sensitivity sensitivity.
- the fingerprint driver 60 when the fingerprint driver 60 determines that the first area 101 and the third area 103 do not need to display an image, and the second area 102 needs to display an image, it is in the seventh time period and the ninth time period.
- the fingerprint driver 60 will not drive the first fingerprint scanning circuit and the third fingerprint scanning circuit. Therefore, the first fingerprint scanning circuit and the third fingerprint scanning circuit will not drive the corresponding fingerprint sensors, the first area 101 and the third fingerprint scanning circuit.
- the fingerprint sensor in the third area 103 will also not detect fingerprint signals.
- the fingerprint driver 60 will drive the second fingerprint scanning circuit, so the second fingerprint scanning circuit will drive the corresponding fingerprint sensor, and the fingerprint sensor in the second area 102 will detect the fingerprint signal.
- the driving control method of the fingerprint driver 60 is similar to that of the touch driver 50.
- the driving timing signal diagram of the fingerprint scanning circuit in one frame is also similar to the driving timing signal diagram of the touch scanning circuit in one frame. Therefore, you can refer to the above. I won't repeat it here.
- the embodiment of the present application does not need to display the image in the display area.
- the fingerprint driving signal is sent to the second fingerprint scanning circuit corresponding to the second area 102 to drive three of the second fingerprint scanning circuits in a frame
- the time resource scans and drives the fingerprint sensor in the second area 102 three times.
- the fingerprint scan frame screen will reach 3 times the previous, that is, 180Hz, which greatly improves the sensitivity of fingerprint sensing.
- each module in the foregoing embodiment stops working when the time resource corresponding to the display area where the image is not required to be displayed, and starts working again in the time resource corresponding to the display area in the display state.
- each module in the drive control system of the above embodiment can be started to work in advance, or postponed to stop each module in the drive control system of the above embodiment.
- the work of each module can be stopped after a period of time from the time resource corresponding to the display area that needs to display the image into the time resource corresponding to the display area that does not need to display the image; Before the time resource corresponding to the area enters the time resource corresponding to the display area where the image needs to be displayed for a period of time, the work of each module is resumed.
- the pause time of each module has become shorter, the driving of various circuits is still started according to the specified scanning time point.
- the above-mentioned display panel 10, processor 20, display driver 30, power supply module 40, touch driver 50, and fingerprint driver 60 respectively perform functions of one or more parts of display, touch control, power supply, and fingerprint recognition. Consumption has been saved. It is understandable that according to the functional design and hardware structure design of different electronic devices, in specific implementation, the above-mentioned drive control method can be adopted for part of the sub-modules or part of the time period of a certain module to save the corresponding part of the power consumption; All modules adopt the driving control method in the above-mentioned embodiment, so that power consumption can be saved to the greatest extent.
- the first area 101, the second area 102, and the third area 103 all need to display images, and the driving control method of each module will be described below.
- the display panel 10 the processor 20, the display driver 30, the power module 40, the touch driver 50, and the fingerprint
- the time resources corresponding to the three regions of the driver 60 are all working normally, and the circuits controlled by them are also scanning and driving or supplying power normally.
- the power supply module 40 keeps the power supply to the first area 101, the second area 102, and the third area 103 always in an enabled state, that is, each area maintains power supply.
- the internal sub-modules of the touch driver 50 (DDIC): the data receiving sub-module 301, the data storage sub-module 302, the data processing sub-module 303 and the scanning control sub-module 304 (DEMUX, scanning control unit 3042) have been in the enabled state.
- Process image data With further reference to FIG. 17 and comparison with FIG. 13a, it can be seen that in the first case, the scanning control unit 3042 will send a signal to the pixel scanning circuit (EOA/GOA) corresponding to the area when the time resource corresponding to each area arrives. Start signal.
- the data transmission sub-module 203 of the processor 20 (SOC) will also continue to maintain the data transmission of image data at all time resources.
- each module ensures that the first area 101, the second area 102, and the third area 103 are all in the display state and the normal image display. Further, the touch driver 50 and the fingerprint driver 60 will also send driving signals to the touch scanning circuit and fingerprint scanning circuit corresponding to the area when the time resource corresponding to each area arrives, so as to activate the touch signal and the fingerprint scanning circuit of the corresponding area. Fingerprint signal detection.
- the drive control method of the time resource corresponding to each display area can refer to the drive control methods of the above-mentioned several modules when the second area 102 needs to display an image in the third case.
- the principles are completely the same, so no longer Go into details.
- the following describes the driving control method of each module in the second case in which no image is required to be displayed in the first area 101, the second area 102, and the third area 103.
- the display panel 10, the processor 20, the display driver 30, the power module 40, the touch driver 50, and the fingerprint driver 60 can all be stopped in the time resources corresponding to the three areas.
- their respective control circuits can also stop scanning drive or power supply.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
- the program can be stored in a computer readable storage medium. During execution, it may include the processes of the above-mentioned method embodiments.
- the storage medium can be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.
Abstract
Description
Claims (53)
- 一种显示模组,其特征在于,包括显示面板和显示驱动器;所述显示面板,包括第一像素扫描电路和第二像素扫描电路,所述第一像素扫描电路用于驱动所述显示面板中第一区域的像素将电信号转换为光信号,所述第二像素扫描电路用于驱动所述显示面板中第二区域的像素将电信号转换为光信号;所述显示驱动器,用于产生不同的显示驱动信号分别控制所述第一像素扫描电路和所述第二像素扫描电路的工作时间段。
- 根据权利要求1所述的显示模组,其特征在于,所述显示驱动器,具体用于输出第一显示驱动信号和第二显示驱动信号,所述第一显示驱动信号控制所述第一像素扫描电路在第一时间段处于工作状态以驱动所述第一区域的像素,所述第二显示驱动信号控制所述第二像素扫描电路在第二时间段处于工作状态以驱动所述第一区域的像素,所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求2所述的显示模组,其特征在于,所述显示驱动器,还用于在特定时间周期内,在所述第二时间段不输出所述第二显示驱动信号,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求2所述的显示模组,其特征在于,所述显示驱动器,还用于在特定时间周期内,在所述第一时间段和所述第二时间段均输出所述第一显示驱动信号,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求1所述的显示模组,其特征在于,所述显示驱动器,还用于在特定时间周期内,在第一时间段向所述显示面板发送像素数据信号,在第二时间段不发送像素数据信号,所述像素数据信号用于指示所述显示面板内的像素显示的内容,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求5所述的显示模组,其特征在于,所述显示驱动器,用于在特定时间周期内,在所述第一时间段生成像素数据信号,在所述第二时间段不生成像素数据信号,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环
- 根据权利要求1所述的显示模组,其特征在于,所述显示驱动器,用于在特定时间周期内,在第一时间段接收处理器发送的所述显示面板的图像数据,在所述第二时间段不接收处理器发送的所述显示面板的图像数据,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 一种处理器,其特征在于,所述处理器,用于获得显示器不同区域的显示需求, 根据所述显示需求确定向显示驱动器发送不同区域图像数据的时间资源,其中所述时间资源包括第一时间段和第二时间段,所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求8所述的处理器,其特征在于,所述处理器,还用于在所述第一时间段向所述显示驱动器发送所述显示器的第一区域的图像数据,在所述第二时间段向所述显示驱动器发送所述显示器的第二区域的图像数据,其中所述第一时间段对应所述显示驱动器驱动所述显示器的第一区域的时间,所述第二时间段对应所述显示驱动器驱动所述显示器的第二区域的时间。
- 根据权利要求8所述的处理器,其特征在于,所述处理器,还用于在所述第一时间段向所述显示驱动器发送所述显示器的第一区域的图像数据,在所述第二时间段不向所述显示驱动器发送所述显示器的第二区域的图像数据,其中所述第一时间段对应所述显示驱动器驱动所述显示器的第一区域的时间,所述第二时间段对应所述显示驱动器驱动所述显示器的第二区域的时间。
- 根据权利要求8-10任一项所述的处理器,其特征在于,所述处理器,还用于向显示驱动器、电源、触控驱动器和指纹感应驱动器中的至少一个发送第一指示信息,所述第一指示信息用于指示所述显示器不同区域的显示需求。
- 根据权利要求8-11任一项所述的处理器,其特征在于,所述处理器还用于:获得并根据电子设备所处状态,确定所述显示器不同区域的显示需求。
- 一种电子设备,其特征在于,包括显示器和处理器;所述显示器包括显示面板和显示驱动器;所述显示面板,包括第一像素扫描电路和第二像素扫描电路,所述第一像素扫描电路用于驱动所述显示面板中第一区域的像素将电信号转换为光信号,所述第二像素扫描电路用于驱动所述显示面板中第二区域的像素将电信号转换为光信号;所述显示驱动器,用于产生不同的显示驱动信号分别控制所述第一像素扫描电路和所述第二像素扫描电路的工作时间段;所述处理器,用于获得显示器不同区域的显示需求,根据所述显示需求确定向显示驱动器发送不同区域图像数据的时间资源,其中所述时间资源包括第一时间段和第二时间段,所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求13所述的电子设备,其特征在于,所述显示驱动器,具体用于输出第一显示驱动信号和第二显示驱动信号,所述第一显示驱动信号控制所述第一像素扫描电路在所述第一时间段处于工作状态以驱动所述第一区域的像素,所述第二显示驱动信号控制所述第二像素扫描电路在所述第二时间段处于工作状态以驱动所述第一区域的像素。
- 根据权利要求13所述的电子设备,其特征在于,所述显示驱动器,还用于在 特定时间周期内,在所述第二时间段不输出所述第二显示驱动信号,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求14所述的电子设备,其特征在于,所述显示驱动器,还用于在特定时间周期内,在所述第一时间段和所述第二时间段均输出所述第一显示驱动信号,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求13所述的电子设备,其特征在于,所述显示驱动器,还用于在特定时间周期内,在所述第一时间段发送像素数据信号,在所述第二时间段不发送像素数据信号,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求17所述的电子设备,其特征在于,所述显示驱动器,用于在所述第一时间段生成像素数据信号,在所述第二时间段不生成像素数据信号,所述像素数据信号用于指示所述显示面板内的像素显示的内容,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求13所述的电子设备,其特征在于,所述显示驱动器,用于在特定时间周期内,在所述第一时间段接收处理器发送的所述显示面板的图像数据,在所述第二时间段不接收处理器发送的所述显示面板的图像数据,所述特定时间周期内所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求13所述的电子设备,其特征在于,所述处理器,还用于在所述第一时间段向所述显示驱动器发送所述显示器的第一区域的图像数据,在所述第二时间段向所述显示驱动器发送所述显示器的第二区域的图像数据,其中所述第一时间段对应所述显示驱动器驱动所述显示器的第一区域的时间,所述第二时间段对应所述显示驱动器驱动所述显示器的第二区域的时间。
- 根据权利要求13所述的电子设备,其特征在于,所述处理器,还用于在所述第一时间段向所述显示驱动器发送所述显示器的第一区域的图像数据,在所述第二时间段不向所述显示驱动器发送所述显示器的第二区域的图像数据,其中所述第一时间段对应所述显示驱动器驱动所述显示器的第一区域的时间,所述第二时间段对应所述显示驱动器驱动所述显示器的第二区域的时间。
- 根据权利要求13-21任一项所述的电子设备,其特征在于,所述处理器,还用于向显示驱动器、电源模块、触控驱动器和指纹感应驱动器中的至少一个发送第一指示信息,所述第一指示信息用于指示所述显示器不同区域的显示需求。
- 根据权利要求13所述的电子设备,其特征在于,还包括触控模组;所述触控模组包括第一触控扫描电路、第二触控扫描电路和触控驱动器;所述第一触控扫描电路和所述第二触控扫描电路集成于显示面板;所述第一触控扫描电路用于驱动所述显示面板中第一区域的触控传感器,所述第二像素扫描电路用于驱动所述显示面板中第二区域的触控传感器;所述触控驱动器,用于根据所述第一区域和所述第二区域的显示需求,控制所述第一触控扫描电路和所述第二触控扫描电路的工作时间段。
- 根据权利要求23所述的电子设备,其特征在于,所述触控驱动器具体用于:在特定时间周期内,在第三时间段向所述第一触控扫描电路输出触控驱动信号以驱动所述第一区域的触控传感器,在第四时间段不输出触控驱动信号,所述特定时间周期内第三时间段和所述第四时间段周期性循环。
- 根据权利要求23所述的电子设备,其特征在于,所述触控驱动器具体用于:在特定时间周期内,在第三时间段和第四时间段均向所述第一触控扫描电路输出触控驱动信号以驱动所述第一区域的触控传感器,所述特定时间周期内第三时间段和所述第四时间段周期性循环。
- 根据权利要求23所述的电子设备,其特征在于,所述第一触控扫描电路和所述第二触控扫描电路彼此电分离。
- 根据权利要求23-26任一项所述的电子设备,其特征在于,所述触控模组还用于:接收处理器发送的第一指示信息,所述第一指示信息用于指示所述第一区域和所述第二区域的显示需求。
- 根据权利要求13所述的电子设备,其特征在于,还包括指纹模组;所述指纹模组包括第一指纹扫描电路、第二指纹扫描电路和指纹驱动器;所述第一指纹扫描电路和所述第二指纹扫描电路集成于显示面板;所述第一指纹扫描电路用于驱动所述显示面板中第一区域的指纹传感器,所述第二像素扫描电路用于驱动所述显示面板中第二区域的指纹传感器;所述指纹驱动器,用于根据所述第一区域和所述第二区域的显示需求,控制所述第一指纹扫描电路和所述第二指纹扫描电路的工作时间段。
- 根据权利要求28所述的电子设备,其特征在于,所述指纹驱动器具体用于:在特定时间周期内,在第五时间段向所述第一指纹扫描电路输出指纹驱动信号以驱动所述第一区域的指纹传感器,在第六时间段不输出指纹驱动信号,所述特定时间周期内第五时间段和所述第六时间段周期性循环。
- 根据权利要求28所述的电子设备,其特征在于,所述指纹驱动器具体用于:在特定时间周期内,在第五时间段和第六时间段均向所述第一指纹扫描电路输出指纹驱动信号以驱动所述第一区域的指纹传感器,所述特定时间周期内第五时间段和所述第六时间段周期性循环。
- 根据权利要求30所述的电子设备,其特征在于,所述第一指纹扫描电路和所述第二指纹扫描电路彼此电分离。
- 根据权利要求28-31任一项所述的电子设备,其特征在于,所述触控模组还用于:接收处理器发送的第一指示信息,所述第一指示信息用于指示所述第一区域和所述第二区域的显示需求。
- 根据权利要求13所述的电子设备,其特征在于,还包括电源模块;所述电源模块用于对所述第一区域和所述第二区域的像素进行独立的供电控制。
- 一种驱动控制系统,应用于具有显示面板的电子设备,其特征在于,包括显示面板和显示驱动模块;其中,所述显示面板包括至少两个显示区域,每个显示区域具有对应的像素扫描电路,且各像素扫描电路彼此电分离;每个所述像素扫描电路用于驱动对应显示区域的像素;所述显示驱动模块包括扫描控制电路;所述扫描控制电路分别与每个显示区域对应的像素扫描电路连接;所述扫描控制电路用于对每个显示区域对应的所述像素扫描电路进行独立的扫描驱动控制。
- 根据权利要求34所述的系统,其特征在于,所述系统还包括电源模块;所述电源模块分别与每个显示区域的像素连接;所述电源模块用于对每个显示区域的像素进行独立的供电控制。
- 一种驱动控制方法,其特征在于,应用于具有显示面板的电子设备,所述方法包括:显示驱动器获得所述显示面板中第一区域和第二区域的显示需求;所述显示驱动器根据所述第一区域和所述第二区域的显示需求,产生不同的显示驱动信号分别控制第一像素扫描电路和第二像素扫描电路的工作时间段,其中所述第一像素扫描电路用于驱动所述显示面板中所述第一区域的像素将电信号转换为光信号,所述第二像素扫描电路用于驱动所述显示面板中所述第二区域的像素将电信号转换为光信号。
- 根据权利要求36所述的驱动控制方法,其特征在于,所述显示驱动器根据所述第一区域和所述第二区域的显示需求,产生不同的显示驱动信号分别控制所述第一像素扫描电路和所述第二像素扫描电路的工作时间段,包括:在所述第一区域和所述第二区域的显示需求均为显示图像时,所述显示驱动器在第一时间段向所述第一像素扫描电路输出第一显示驱动信号以控制所述第一像素扫描电路在第一时间段驱动所述第一区域的像素,在第二时间时段向所述第二像素扫描电路输出第二显示驱动信号以控制所述第二像素扫描电路在第二时间时段驱动所述第二区域的像素;所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求37所述的驱动控制方法,其特征在于,所述方法还包括:在所述第一区域的显示需求为显示图像,所述第二区域的显示需求为不显示图像时,所述显示驱动器在所述第一时间段向所述第一像素扫描电路输出所述第一显示驱动信号以控制所述第一像素扫描电路在所述第一时间段驱动所述第一区域的像素,在所述第二时间段不向所述第二像素扫描电路输出所述第二显示驱动信号以控制所述第二像素扫描电路在所述第二时间时段不驱动所述第二区域的像素。
- 根据权利要求37所述的驱动控制方法,其特征在于,所述方法还包括:在所述第一区域的显示需求为显示图像,所述第二区域的显示需求为不显示图像时,所述显示驱动器在在所述第一时间段和所述第二时间段均向所述第一像素扫描电路输出所述第一显示驱动信号以控制所述第一像素扫描电路分别在所述第一时间段和所述第二时间段驱动所述第一区域的像素。
- 根据权利要求36所述的驱动控制方法,其特征在于,所述方法还包括:在所述第一区域的显示需求为显示图像,所述第二区域的显示需求为不显示图像时,所述显示驱动器在第一时间段向所述显示面板发送像素数据信号,在第二时间段不发送像素数据信号;所述像素数据信号用于指示所述显示面板内的像素显示的内容,所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求40所述的驱动控制方法,其特征在于,所述方法还包括:在所述第一区域的显示需求为显示图像,所述第二区域的显示需求为不显示图像时,所述显示驱动器在所述第一时间段生成所述像素数据信号,在所述第二时间段不生成所述像素数据信号。
- 根据权利要求36所述的驱动控制方法,其特征在于,所述方法还包括:在所述第一区域的显示需求为显示图像,所述第二区域的显示需求为不显示图像时,所述显示驱动器在第一时间段接收处理器发送的所述显示面板的图像数据,在第二时间段不接收处理器发送的所述显示面板的图像数据,所述第一时间段和所述第二时间段周期性循环。
- 根据权利要求36-42任一项所述的驱动控制方法,其特征在于,所述显示驱动器获得显示面板中第一区域和第二区域的显示需求,包括:所述显示驱动器接收处理器发送的第一指示信息,所述第一指示信息用于指示所述显示面板不同区域的显示需求。
- 一种触控模组,其特征在于,包括第一触控扫描电路、第二触控扫描电路和触控驱动器;所述第一触控扫描电路和所述第二触控扫描电路集成于显示面板;所述第一触控扫描电路用于驱动所述显示面板中第一区域的触控传感器,所述第二像素扫描电路用于驱动所述显示面板中第二区域的触控传感器;所述触控驱动器,用于根据所述第一区域和所述第二区域的显示需求,控制所述第 一触控扫描电路和所述第二触控扫描电路的工作时间段。
- 根据权利要求44所述的触控模组,其特征在于,所述触控驱动器具体用于:在特定时间周期内,在第一时间段向所述第一触控扫描电路输出触控驱动信号以驱动所述第一区域的触控传感器,在第二时间段不输出触控驱动信号,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求44所述的触控模组,其特征在于,所述触控驱动器具体用于:在特定时间周期内,在第一时间段和第二时间段均向所述第一触控扫描电路输出触控驱动信号以驱动所述第一区域的触控传感器,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求44所述的触控模组,其特征在于,所述第一触控扫描电路和所述第二触控扫描电路彼此电分离。
- 根据权利要求44-47任一项所述的触控模组,其特征在于,所述触控模组还用于:接收处理器发送的第一指示信息,所述第一指示信息用于指示所述第一区域和所述第二区域的显示需求。
- 一种指纹模组,其特征在于,包括第一指纹扫描电路、第二指纹扫描电路和指纹驱动器;所述第一指纹扫描电路和所述第二指纹扫描电路集成于显示面板;所述第一指纹扫描电路用于驱动所述显示面板中第一区域的指纹传感器,所述第二像素扫描电路用于驱动所述显示面板中第二区域的指纹传感器;所述指纹驱动器,用于根据所述第一区域和所述第二区域的显示需求,控制所述第一指纹扫描电路和所述第二指纹扫描电路的工作时间段。
- 根据权利要求49所述的指纹模组,其特征在于,所述指纹驱动器具体用于:在特定时间周期内,在第一时间段向所述第一指纹扫描电路输出指纹驱动信号以驱动所述第一区域的指纹传感器,在第二时间段不输出指纹驱动信号,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求49所述的指纹模组,其特征在于,所述指纹驱动器具体用于:在特定时间周期内,在第一时间段和第二时间段均向所述第一指纹扫描电路输出指纹驱动信号以驱动所述第一区域的指纹传感器,所述特定时间周期内第一时间段和所述第二时间段周期性循环。
- 根据权利要求49所述的指纹模组,其特征在于,所述第一指纹扫描电路和所述第二指纹扫描电路彼此电分离。
- 根据权利要求49-52任一项所述的指纹模组,其特征在于,所述触控模组还用 于:接收处理器发送的第一指示信息,所述第一指示信息用于指示所述第一区域和所述第二区域的显示需求。
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CN114664237B (zh) * | 2022-03-22 | 2023-07-04 | 武汉天马微电子有限公司 | 显示装置及其驱动方法 |
CN114464126A (zh) * | 2022-04-11 | 2022-05-10 | 禹创半导体(深圳)有限公司 | 一种Micro LED的扫描驱动电路及其驱动方法 |
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KR20230023034A (ko) | 2023-02-16 |
JP2023530009A (ja) | 2023-07-12 |
CN113823207A (zh) | 2021-12-21 |
EP4156158A1 (en) | 2023-03-29 |
EP4156158A4 (en) | 2023-06-28 |
US20230127696A1 (en) | 2023-04-27 |
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