CN116486745A - Display control method and device and electronic equipment - Google Patents
Display control method and device and electronic equipment Download PDFInfo
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Classifications
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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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
- G09G2320/02—Improving the quality of display appearance
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The application provides a display control method, a device and electronic equipment, which belong to the technical field of communication, wherein the method is executed by an independent display chip, the independent display chip is connected with a display, and the method comprises the following steps: receiving a display frame rate synchronization signal sent by the display; when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a display control method, a display control device, and an electronic device.
Background
With the popularization of electronic devices such as mobile phones and tablet computers, the performance requirements of users on the electronic devices are also increasing. In order to obtain better viewing experience, the user has higher requirements on the display frame rate of the display of the electronic equipment, and the higher display frame rate enables the display smoothness of the display screen to be higher. However, if the display frame rate of the display is higher, the scanning frequency of the display driving chip is higher, resulting in greater power consumption of the electronic device; in addition, a control lighting (EM) switch is easily changed during the display mode switching, and the EM switch is used to control the brightness of the display screen, so that the EM switch change caused by the display mode switching may cause a splash screen problem.
Disclosure of Invention
The embodiment of the application aims to provide a display control method, a display control device and electronic equipment, which can solve the problem of larger power consumption of the electronic equipment and can also solve the problem of screen flashing.
In a first aspect, an embodiment of the present application provides a display control method performed by an independent display chip, where the independent display chip is connected to a display, the method including:
receiving a display frame rate synchronization signal sent by the display;
when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
In a second aspect, an embodiment of the present application provides a display control device, where an independent display chip includes the display control device, and the independent display chip is connected to a display, and the device includes:
The first receiving module is used for receiving the display frame rate synchronous signal sent by the display;
the adjusting module is used for adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal when the display content of the display is changed from a first display content to a second display content, wherein the first display mode corresponds to the first display content, and the second display mode corresponds to the second display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, where the memory stores a program or instructions executable on the processor, the program or instructions implementing the steps in the display control method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps in the display control method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, a display frame rate synchronization signal sent by the display is received; when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; or, when the frequency of the display content update of the display is changed, adjusting the display frame rate of the display based on the display frame rate synchronization signal. In this way, the display mode of the display is adjusted by the independent display chip according to the display content and the display frame rate synchronous signal of the display, so that different display modes can be adopted for different application scenes, the purpose of saving electricity can be achieved, and the power consumption of the electronic equipment can be reduced; the display frame rate of the display is adjusted by the independent display chip based on the display content updating frequency and the display frame rate synchronous signal, so that the situation that the higher display frame rate is always adopted can be avoided, and the power consumption of the electronic equipment can be reduced; and the display mode is adjusted according to the display frame rate synchronizing signal, and because the display frame rate synchronizing signal is synchronized with the EM switch, the screen is prevented from being flashed when the display mode is adjusted, so that the user experience can be improved.
Drawings
FIG. 1 is one of the flowcharts of a display control method provided in an embodiment of the present application;
FIG. 2 is a diagram of an electronic device system architecture in the related art;
FIG. 3 is a schematic diagram of a light emission control circuit in the related art;
FIG. 4 is a schematic diagram of a display frame rate according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of display power consumption according to an embodiment of the present disclosure;
FIG. 6 is a schematic illustration of an EM timing diagram provided by an embodiment of the present application;
fig. 7 is a diagram of an electronic device system architecture according to an embodiment of the present application;
FIG. 8 is a timing diagram of a display frame rate control according to an embodiment of the present disclosure;
FIG. 9 is a schematic diagram of a rising edge of a TE signal according to an embodiment of the present application;
FIG. 10 is a timing diagram of a display mode control according to an embodiment of the present disclosure;
FIG. 11 is a second flowchart of a display control method according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a display control device according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of another electronic device according to an embodiment of the present application.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The display control method, the display control device and the electronic equipment provided by the embodiment of the application are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart of a display control method provided in an embodiment of the present application, where the method is performed by a separate display chip, and the separate display chip is connected to a display, as shown in fig. 1, and includes the following steps:
and step 101, receiving a display frame rate synchronous signal sent by the display.
The display frame rate synchronization signal may be a Tearing Effect (TE) signal.
102, when the display content of the display is changed from a first type of display content to a second type of display content, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
The first type of display content may be display content with a low refresh frequency and a low required display frame rate, for example, display content related to an electronic book; the second type of display content may be display content with a higher refresh rate and a higher desired display frame rate, such as game or web page related display content. Or, the second type of display content can be display content with lower refreshing frequency and lower required display frame rate; the first type of display content may be display content with a higher refresh frequency and a higher desired display frame rate.
In addition, the driving chip of the display does not store image data to be displayed in the first display mode, and the driving chip of the display stores image data to be displayed in the second display mode; or, in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
In one embodiment, the display mode of the display may be adjusted in a case where the display frame rate synchronization signal is switched from a first level to a second level.
In one embodiment, the display frame rate of the display may be adjusted if the display frame rate synchronization signal is switched from a first level to a second level.
In one embodiment, the display may be an Active-matrix organic light emitting diode (AMOLED) display.
It should be noted that the independent display chip (may be simply referred to as a single display or a single display IC) is widely used in a personal computer, and as an external special image processing unit, it can bring about display enhancement effects such as higher frame rate, higher resolution, color saturation, contrast, and the like. Along with the explosion of the mobile internet, game and image demands are gradually expanded to the mobile intelligent terminal, and the mobile intelligent terminal is applied to mobile phones.
In the related art, a system architecture of an electronic device (e.g., a mobile phone) application display is shown in fig. 2, and the display is placed between a mobile phone platform (SOC) and a display screen (LCM). The power of the single display (power), the control signal (GPIO), the data (MIPI) and the display frame rate synchronization signal (TE) are all provided and controlled by the SOC. When the processing of the display enhancement (such as frame insertion, super division, noise reduction, color enhancement/calibration and the like) with the single display is needed, the data is output after being processed by the single display internal functional module; when the processing is not needed, the processing is directly output to the display screen through the independent internal channel.
In fig. 2, SOC (System on Chip) is a system-on-chip, which includes a processor core, a digital signal processor, a memory module, a communication interface, a power management module, a radio frequency front end, and the like; CCM is a camera, LCM is a display screen; CSI is a camera data receiving module; DSI is a display data transmitting module; MIPI is a display data transmission signal; GPIO is a general-purpose input/output, and comprises other control and data signals between a single display and a processor; the PMIC is a mobile phone power management chip/module and comprises a battery management chip, a single-display power supply management chip and other module power management chips/modules; the Battery is a mobile phone Battery; DSI Rx is a single display data receiving module; DSI Tx is a display data transmitting module with a single display; power is a Power supply module with a single display; IP is a unique functional module (such as frame insertion, noise reduction, super division, color calibration, color enhancement, etc.); TE is a display frame rate synchronization signal.
It should be noted that, the display screen may adopt an Active-matrix organic light emitting diode (AMOLED) design scheme, and has the characteristics of high color saturation, high brightness, high contrast, fast response speed, high frame rate, etc., and the functions of under-screen fingerprint identification, screen-extinguishing display, etc. can be used in combination with the mobile phone application, and compared with the liquid crystal display (Liquid Crystal Display, LCD) display screen, the AMOLED display screen has more powerful functions.
It should be noted that, the requirements of people on the frame rate are higher and higher at present, the higher the frame rate is, the higher the fluency of the mobile phone is, and the higher the fluency is, the better the mobile phone experience is. The refresh rate is improved, so that the scanning frequency of the driving integrated circuit (Integrated Circuit, IC) is improved, the high refresh rate means high power consumption, the service life of a mobile phone battery is further influenced, the service life of the mobile phone charged once is shorter as the refresh rate is higher, the user can feel anxiety, and the user experience is seriously influenced.
The AMOLED is an active light emitting type display, and as shown in fig. 3, light Emission is controlled mainly by controlling a light Emission (EM) switch (AMOLED circuit switch), thereby controlling brightness. Therefore, when switching at different frame rates, or when switching between command mode (mode) and video mode, the EM switch needs to be kept unchanged, otherwise a problem of screen flash occurs during the switching process. In command mode, image data is stored in the drive IC of the display screen, and the memory of the drive IC is updated when there is an image update. In video mode, the display driver ICs do not have memory, requiring the system to transmit image data in real time.
In the related art, the high frame rate display screen 60/90/120hz is actually a low frame rate realized by idle running according to the high frame 120hz time (timing), as shown in fig. 4, 60hz is actually performed according to the 120hz timing+idle running mode, and according to this mode, the actual power consumption is larger than the power consumption according to the pure 60hz timing, so that the power saving cannot be realized. The embodiment adjusts the display frame rate of the display based on the display frame rate synchronization signal, so that frame rate control can be performed in a real-time (real-time) mode, and power consumption can be reduced.
In the related art, the mobile phone system switches between a command mode and a VIDEO mode, and the power consumption is different according to different frame rates, as shown in fig. 5, the higher the frame rate is, the power saving in the VIDEO mode (i.e., VIDEO mode); the lower the frame rate, the power saving in COMMAND mode (i.e., COMMAND mode). Therefore, the power saving effect can be achieved by adopting different modes according to different application scenes. For example, in an electronic book scene, the frame rate is low, and the command mode is adopted to save more power; browsing web pages or game scenes uses video mode to save more power. However, since the AMOLED is an active light emitting material, brightness needs to be controlled by an EM switch, as shown in fig. 6, EM switch changes easily occur during the command mode and video mode switching, so that a problem of screen flicker occurs. According to the embodiment, the display mode of the display is adjusted based on the display frame rate synchronous signal, and the display frame rate synchronous signal is synchronous with the EM switch, so that video mode and command mode switching can be performed at the EM switch time node, and the problem of screen flashing is avoided.
In the embodiment of the application, a display frame rate synchronization signal sent by the display is received; when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; or, when the frequency of the display content update of the display is changed, adjusting the display frame rate of the display based on the display frame rate synchronization signal. In this way, the display mode of the display is adjusted by the independent display chip according to the display content and the display frame rate synchronous signal of the display, so that different display modes can be adopted for different application scenes, the purpose of saving electricity can be achieved, and the power consumption of the electronic equipment can be reduced; the display frame rate of the display is adjusted by the independent display chip based on the display content updating frequency and the display frame rate synchronous signal, so that the situation that the higher display frame rate is always adopted can be avoided, and the power consumption of the electronic equipment can be reduced; and the display mode is adjusted according to the display frame rate synchronizing signal, and because the display frame rate synchronizing signal is synchronized with the EM switch, the screen is prevented from being flashed when the display mode is adjusted, so that the user experience can be improved.
Optionally, the adjusting the display mode of the display from the first display mode to the second display mode based on the display frame rate synchronization signal includes: when the display frame rate synchronous signal is switched from a first level to a second level, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal; and/or
The adjusting the display frame rate of the display based on the display frame rate synchronization signal includes:
and adjusting the display frame rate of the display based on the display frame rate synchronization signal when the display frame rate synchronization signal is switched from the first level to the second level.
The first level may be a low level, and the second level may be a high level; alternatively, the first level may be a high level and the second level may be a low level; this embodiment is not limited thereto. The display frame rate synchronization signal is switched from the first level to the second level, and may be considered as a rising edge of the display frame rate synchronization signal or may be a falling edge of the display frame rate synchronization signal.
In this embodiment, when the display frame rate synchronization signal is switched from the first level to the second level, the display mode or the display frame rate of the display is adjusted, and when the display frame rate synchronization signal is switched from the first level to the second level, the display frame rate synchronization signal may be a rising edge of the display frame rate synchronization signal, and when the display frame rate synchronization signal is rising edge, the EM level is synchronously switched, and at this time, the display mode is switched, so that the width of one complete EM switching period is not damaged, and thus the problem of flashing when the display mode is adjusted can be avoided; and the display frame rate is adjusted when the display frame rate synchronous signal is subjected to level switching, so that the time sequence control of the adjustment of the display frame rate can be realized through the display frame rate synchronous signal.
Optionally, the independent display chip is further connected to a system on chip SOC, and before adjusting the display frame rate of the display based on the display frame rate synchronization signal, the method further includes:
receiving image data sent by the SOC, and determining the data transmission rate of the image data sent by the SOC;
the adjusting the display frame rate of the display based on the display frame rate synchronization signal includes:
and adjusting the display frame rate of the display to a target frame rate based on the display frame rate synchronization signal, wherein the target frame rate is matched with the data transmission rate.
The independent display chip can receive the image data sent by the SOC based on the display frame rate synchronous signal and determine the data transmission rate of the image data sent by the SOC based on the display frame rate synchronous signal.
In addition, the display frame rate of the display may be adjusted to a target frame rate based on the display frame rate synchronization signal, and the display frame rate of the display may be adjusted to the target frame rate when the display frame rate synchronization signal is switched from the first level to the second level. For example, the display frame rate of the display may be adjusted to the target frame rate in a case where the display frame rate synchronization signal is switched from a low level to a high level (i.e., at a rising edge of the display frame rate synchronization signal).
In addition, the target frame rate being matched with the data transmission rate may mean that the target frame rate corresponds to the data transmission rate one by one, and for example, the target frame rate may be equal to the data transmission rate; or it may mean that one target frame rate corresponds to one data transmission rate interval, that is, the data transmission rates in a certain interval each correspond to the target frame rate.
In this embodiment, the image data sent by the SOC is received, the data transmission rate at which the SOC sends the image data is determined, the display frame rate of the display is adjusted to be a target frame rate based on the display frame rate synchronization signal, and the target frame rate is matched with the data transmission rate, so that the matching between the display frame rate of the display and the data transmission rate of the SOC can be achieved, and power consumption optimization can be achieved while obtaining better display smoothness, so that the display smoothness and the service duration of the electronic device can be improved.
Optionally, after receiving the display frame rate synchronization signal sent by the display, the method further includes:
transmitting the display frame rate synchronization signal to the SOC;
the receiving the image data sent by the SOC and determining the data transmission rate of the image data sent by the SOC includes:
Receiving image data sent by the SOC based on the display frame rate synchronization signal;
and determining a data transmission rate of the SOC for transmitting the image data based on the display frame rate synchronization signal.
The SOC receives the display frame rate synchronization signal sent by the independent display chip, and can send image data to the independent display chip when the display frame rate synchronization signal performs level switching. For example, the SOC may transmit image data to the independent display chip at a rising edge of the display frame rate synchronization signal, so that the independent display chip may recognize the image data transmitted by the SOC based on the rising edge of the display frame rate synchronization signal and determine a data transmission rate of the image data transmitted by the SOC.
In this embodiment, the display frame rate synchronization signal is transmitted to the SOC, the image data transmitted by the SOC based on the display frame rate synchronization signal is received, and the data transmission rate at which the image data is transmitted by the SOC is determined based on the display frame rate synchronization signal, so that timing control of display frame rate adjustment can be realized by the display frame rate synchronization signal.
Optionally, the adjusting the display mode of the display from the first display mode to the second display mode based on the display frame rate synchronization signal includes:
Determining a display frame rate of the display based on the display frame rate synchronization signal;
adjusting a display mode of the display from a first display mode to a second display mode based on a display frame rate of the display and the display frame rate synchronization signal;
the driving chip of the display device does not store image data to be displayed in the first display mode, and stores the image data to be displayed in the second display mode;
or alternatively
And in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
The display frame rate of the display is determined based on the display frame rate synchronization signal, and may be a real-time display frame rate of the display screen operation is determined based on the display frame rate synchronization signal. The independent display chip can determine the display frame rate of the display according to the switching time of the display frame rate synchronous signal level. For example, the independent display chip may determine the real-time display frame rate of the display screen according to the rising edge of the display frame rate synchronization signal and the falling edge of the display frame rate synchronization signal, that is, calculate the display frame rate of the display according to the time T between the rising edge of the display frame rate synchronization signal and the falling edge of the display frame rate synchronization signal, where the calculation formula is as follows: frame rate=1/T, e.g. 30 hz=1/0.33 is shown.
In addition, if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode; and/or if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
The display mode of the display may be adjusted to the target display mode based on the display frame rate synchronization signal, and the display mode of the display may be adjusted to the target display mode when the display frame rate synchronization signal is switched from the first level to the second level. For example, the display mode of the display may be adjusted to the target display mode in a case where the display frame rate synchronization signal is switched from a low level to a high level (i.e., at a rising edge of the display frame rate synchronization signal).
In this embodiment, the display frame rate of the display is determined based on the display frame rate synchronization signal, and the display mode of the display is adjusted from the first display mode to the second display mode based on the display frame rate of the display and the display frame rate synchronization signal, so that the display mode with power saving can be determined by the display frame rate of the display, and the display mode with power saving can be adjusted to the display mode with power saving, thereby realizing optimization of power consumption of the electronic device.
Optionally, if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode;
if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
The preset frame rate may be preset, for example, may be set to 50hz, or 60hz, or 70hz, or the like, and the present embodiment does not limit the preset frame rate.
In one embodiment, the driver chip of the display stores image data to be displayed in the command mode, and the driver chip of the display does not store image data to be displayed in the video mode. In the video mode, the driving chip of the display can be considered to not enable the memory, the driving chip of the display does not store the image data to be displayed, and the SOC is required to transmit the image data in real time for display. In command mode, the driving chip of the display can be considered to enable the memory, the driving chip of the display stores the image data to be displayed through the memory, the SOC is not required to transmit the image data in real time for displaying, and the memory of the driving chip is updated when the image data is updated. If the display frame rate of the display is greater than the preset frame rate, the first display mode may be a command mode, and the second display mode may be a video mode; and/or, if the display frame rate of the display is less than or equal to the preset frame rate, the second display mode may be a command mode, and the first display mode may be a video mode.
In this embodiment, if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode; if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode. Therefore, when the display frame rate is large, namely the scanning frequency of the display driving chip is high, the driving chip does not store the image data to be displayed, so that the image data is transmitted in real time through the SOC for display, and the read-write power consumption of the memory of the driving chip is reduced; when the display frame rate is smaller, namely the scanning frequency of the display driving chip is lower, the driving chip stores the image data to be displayed, so that the image data do not need to be transmitted in real time through the SOC for display, the driving chip can call the image data stored in the memory, the quantity of the image data transmitted by the SOC is reduced, and the power consumption can be reduced.
The following describes a display control method by two specific embodiments:
as shown in fig. 7, when the AMOLED communicates with the SOC, data transmission is performed after data processing (e.g., pin, recognition timing) is performed by the unique IC. In this embodiment, the control center of the single-display chip is used to perform timing control switching, and the single-display chip control center performs control according to the rising edge of the TE signal during frame rate switching and Video/command mode switching, so as to switch the frame rate and the display mode (Video/command mode).
Example 1:
in this embodiment, as shown in fig. 8, the single-display chip controls the frame rate switching.
Step (11): outputting TE signals to a single-display chip by the display screen, and identifying and processing the TE signals by a control center of the single-display chip;
step (12): after identifying the TE signal, the single display chip transmits the TE signal to the SOC;
step (13): the SOC transmits the image to be displayed to the single-display chip through the DSI, and the single-display chip control center recognizes the image transmission rate and controls the display frame rate of the display in real time according to the image transmission rate;
step (14): the TE signal output by the display screen is pulled to a high level in an idle area, the single-display chip control center switches the display frame rate in real time according to the process of switching the TE to the high level (TE rising edge for short), the SOC transmits images according to the TE rising edge, when the SOC transmits the images, the single-display chip recognizes the SOC to transmit the image frame rate according to the TE, and meanwhile, the single-display chip transmits a corresponding command to adjust the frame rate of the display screen to the corresponding frame rate. Illustratively: when the SOC transmits images at an image transmission rate of 30hz according to the TE rising edge, the single display chip recognizes that the image transmission rate of the SOC transmitting images is 30hz according to the TE rising edge, and the single display chip transmits a command to the display screen to adjust the display frame rate of the display to 30hz in real time.
In fig. 8, SOC mapping refers to the speed at which the SOC transmits pictures via MIPI signals, i.e., the time to map one frame, 8.3ms is 120hz,16.7ms is 60hz,33.3ms is 30hz,100ms is 10hz, te is the actual frame rate value; the frame rate of the single-display chip refers to the processing speed of the single-display chip image, namely the processing time of one frame, wherein 8.3ms is 120hz,16.7ms is 60hz,33.3ms is 30hz and 100ms is 10hz; the display frame rate refers to the real-time frame rate of the actual display screen operation, 8.3ms being 120hz,16.7ms being 60hz,33.3ms being 30hz,100ms being 10hz; the single display chip judges the real-time frame rate according to the TE rising edge and the TE falling edge, namely, calculates the actual frame rate according to the time T from the TE rising edge to the TE falling edge, and the calculation formula can be as follows: frame rate=1/T (e.g. 30 hz=1/0.33); in fig. 8, one cell of the TE signal represents 0.83ms, i.e. 120hz, and two cells of the TE signal represent 16.7ms, i.e. 60hz,30hz/10hz can be analogically, and will not be described again. The TE rising edge is shown in FIG. 9, and FIG. 9 can be considered as an enlarged view of the TE signal when the TE rising edge frame rate is switched by 10hz in FIG. 8.
The embodiment can realize good frame rate matching, realize matching of the display frame rate of the display screen and the SOC sending image rate, optimize the power consumption to the greatest extent while optimizing the fluency of the mobile phone through 1-to-1 matching, and further improve the fluency and the using time of the mobile phone.
Example 2:
in this embodiment, as shown in fig. 10 and 11, the single-display chip controls video/command mode switching.
Through test verification, the command mode saves power when the frame rate is less than or equal to 60hz, and the video mode saves more power when the frame rate is more than 60hz, so that the command mode can be adopted when the frame rate is less than or equal to 60hz, and the video mode can be adopted when the frame rate is more than 60hz.
Step (21): and the single-display chip control center recognizes the real-time frame rate of the display screen according to TE.
Step (22): the control center determines whether the frame rate is > 60hz.
Step (23): the control center judges to adopt a command mode or a video mode according to the frame rate judging result, and switches the command mode or the video mode according to the TE rising edge, wherein the TE rising edge is synchronous with the EM switching level in the display screen, namely, when the TE rising edge is used, the EM level is synchronously switched, and at the moment, the display mode switching does not destroy the width of a complete EM switching period, namely, the problem of screen flashing during the display mode switching is avoided.
Step (24): and the single-display chip control center switches the command mode or the video mode in real time according to the TE rising edge.
In fig. 10, TE represents an actual frame rate value; the display frame rate refers to the real-time frame rate of the actual display screen operation, 8.3ms being 120hz,16.7ms being 60hz,33.3ms being 30hz,100ms being 10hz; the single display chip judges the real-time frame rate according to the TE rising edge and the TE falling edge, namely, calculates the actual frame rate according to the time T from the TE rising edge to the TE falling edge, and the calculation formula is as follows: frame rate=1/T (e.g. 30 hz=1/0.33); the EM signal is a switch of a display screen light-emitting diode, and is normally in an on state and an off state in a 120hz period at 50nit brightness, and 50% of the time is in the off state; in fig. 10, one cell of the TE signal represents 0.83ms, i.e. 120hz, and two cells of the TE signal represent 16.7ms, i.e. 60hz,30hz/10hz can be analogically, and will not be described again.
In this embodiment, the switching of the display modes is controlled by the single-display chip, so that no screen flash is realized in the command mode/video mode switching process, so that no user perceives in the display mode switching process, no difference is realized in effect, seamless switching is realized, power consumption is optimized to the greatest extent through the switching of the display modes, and the service life of the mobile phone can be prolonged.
The embodiment of the application provides a novel single display design scheme, utilizes single display IC to do the power saving design, lets user experience high refresh rate, accomplish the power saving when high fluency, can promote the cell-phone and use long. The embodiment uses the unique display IC to control the seamless switching of the display frame rate, the video mode and the command mode, and can realize the following functions: the frame rate is realized by adopting a realtiming mode, for example, 60hz is realized based on 60timming, 90hz is realized based on 90timming, and 120 is realized based on 120 timming; the command mode is adopted to realize the low frame rate, the system does not send a picture when the low frame rate is displayed, and the display drive IC calls the date in the ram, so that the picture sending data volume of the system is reduced, and the power consumption is reduced; and when the video mode is adopted during high frame rate display, a ram skipping mode is adopted, so that ram read-write power consumption is reduced, and the optimal power consumption is realized.
The embodiment can be used for a mobile phone display screen, and can be also suitable for a tablet, a notebook computer, a vehicle-mounted watch screen and the like, and the embodiment does not limit the use scene of the display control method in the embodiment.
It should be noted that, in the display control method provided in the embodiment of the present application, the execution body may be a display control device, or a control module in the display control device for executing the loading display control method. In the embodiment of the present application, a method for executing loading display control by a display control device is taken as an example, and the display control device provided in the embodiment of the present application is described.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a display control device provided in an embodiment of the present application, where an independent display chip includes the display control device, and the independent display chip is connected to a display, as shown in fig. 12, and the device 200 includes:
a first receiving module 201, configured to receive a display frame rate synchronization signal sent by the display;
an adjustment module 202, configured to adjust, when the display content of the display is changed from a first type of display content to a second type of display content, a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, where the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
Optionally, the adjusting module is specifically configured to:
when the display content of the display is changed from the first type of display content to the second type of display content: when the display frame rate synchronous signal is switched from a first level to a second level, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal; and/or
In the case where the frequency of display content update of the display is changed: and adjusting the display frame rate of the display based on the display frame rate synchronization signal when the display frame rate synchronization signal is switched from the first level to the second level.
Optionally, the independent display chip is further connected to a system on chip SOC, and the apparatus further includes:
the second receiving module is used for receiving the image data sent by the SOC and determining the data transmission rate of the image data sent by the SOC;
in the case of a change in the frequency of the display content update of the display, the adjustment module is specifically configured to:
and adjusting the display frame rate of the display to a target frame rate based on the display frame rate synchronization signal, wherein the target frame rate is matched with the data transmission rate.
Optionally, the apparatus further comprises:
a transmitting module, configured to transmit the display frame rate synchronization signal to the SOC;
the second receiving module is specifically configured to:
receiving image data sent by the SOC based on the display frame rate synchronization signal;
and determining a data transmission rate of the SOC for transmitting the image data based on the display frame rate synchronization signal.
Optionally, in the case that the display content of the display is changed from the first type of display content to the second type of display content, the adjustment module is specifically configured to:
determining a display frame rate of the display based on the display frame rate synchronization signal;
adjusting a display mode of the display from a first display mode to a second display mode based on a display frame rate of the display and the display frame rate synchronization signal;
the driving chip of the display device does not store image data to be displayed in the first display mode, and stores the image data to be displayed in the second display mode;
or alternatively
And in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
Optionally, if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode;
if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
In the embodiment of the application, the display mode of the display is adjusted by the independent display chip according to the display content and the display frame rate synchronous signal of the display, so that different application scenes can adopt different display modes, the purpose of saving electricity can be achieved, and the power consumption of the electronic equipment can be reduced; the display frame rate of the display is adjusted by the independent display chip based on the display content updating frequency and the display frame rate synchronous signal, so that the situation that the higher display frame rate is always adopted can be avoided, and the power consumption of the electronic equipment can be reduced; and the display mode is adjusted according to the display frame rate synchronizing signal, and because the display frame rate synchronizing signal is synchronized with the EM switch, the screen is prevented from being flashed when the display mode is adjusted, so that the user experience can be improved.
The display control device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The display control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
The display control device provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 1, and in order to avoid repetition, a description is omitted here.
Optionally, as shown in fig. 13, the embodiment of the present application further provides an electronic device 300, including a processor 301 and a memory 302, where a program or an instruction capable of running on the processor 301 is stored in the memory 302, and the program or the instruction realizes each process of the embodiment of the display control method when executed by the processor 301, and the process can achieve the same technical effect, so that repetition is avoided, and no further description is given here.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.
Fig. 14 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 400 includes, but is not limited to: radio frequency unit 401, network module 402, audio output unit 403, input unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, and processor 410.
Those skilled in the art will appreciate that the electronic device 400 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 410 by a power management system to perform functions such as managing charge, discharge, and power consumption by the power management system. The electronic device structure shown in fig. 14 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
Wherein the electronic device 400 comprises a separate display chip 411, the separate display chip 411 is used for: receiving a display frame rate synchronization signal sent by the display;
the independent display chip 411 is further configured to: when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
Alternatively, the independent display chip 411 is specifically configured to:
when the display content of the display is changed from the first type of display content to the second type of display content: when the display frame rate synchronous signal is switched from a first level to a second level, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal; and/or
In the case where the frequency of display content update of the display is changed: and adjusting the display frame rate of the display based on the display frame rate synchronization signal when the display frame rate synchronization signal is switched from the first level to the second level.
Optionally, the independent display chip 411 is further connected to a system on chip SOC, and the independent display chip 411 is further configured to:
receiving image data sent by the SOC, and determining the data transmission rate of the image data sent by the SOC;
and adjusting the display frame rate of the display to a target frame rate based on the display frame rate synchronization signal, wherein the target frame rate is matched with the data transmission rate.
Optionally, the independent display chip 411 is further configured to:
transmitting the display frame rate synchronization signal to the SOC;
receiving image data sent by the SOC based on the display frame rate synchronization signal;
and determining a data transmission rate of the SOC for transmitting the image data based on the display frame rate synchronization signal.
Optionally, in a case that the display content of the display is changed from the first type of display content to the second type of display content, the independent display chip 411 is further configured to:
Determining a display frame rate of the display based on the display frame rate synchronization signal;
adjusting a display mode of the display from a first display mode to a second display mode based on a display frame rate of the display and the display frame rate synchronization signal;
the driving chip of the display device does not store image data to be displayed in the first display mode, and stores the image data to be displayed in the second display mode;
or alternatively
And in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
Optionally, if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode;
if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
It should be appreciated that in embodiments of the present application, the input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042, with the graphics processor 4041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 407 includes at least one of a touch panel 4071 and other input devices 4072. The touch panel 4071 is also referred to as a touch screen. The touch panel 4071 may include two parts, a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
Memory 409 may be used to store software programs as well as various data. The memory 409 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 409 may include volatile memory or nonvolatile memory, or the memory 409 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 409 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
Processor 410 may include one or more processing units; optionally, the processor 410 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 410.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the processes of the embodiment of the display control method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so as to implement each process of the embodiment of the display control method, and achieve the same technical effect, so that repetition is avoided, and no redundant description is provided here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
The embodiments of the present application provide a computer program product stored in a storage medium, where the program product is executed by at least one processor to implement the respective processes of the embodiments of the display control method described above, and achieve the same technical effects, and are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (14)
1. A display control method performed by an independent display chip connected to a display, the method comprising:
receiving a display frame rate synchronization signal sent by the display;
when the display content of the display is changed from a first type of display content to a second type of display content, adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronization signal, wherein the first display mode corresponds to the first type of display content, and the second display mode corresponds to the second type of display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
2. The method of claim 1, wherein the adjusting the display mode of the display from the first display mode to the second display mode based on the display frame rate synchronization signal comprises: when the display frame rate synchronous signal is switched from a first level to a second level, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal; and/or
The adjusting the display frame rate of the display based on the display frame rate synchronization signal includes:
and adjusting the display frame rate of the display based on the display frame rate synchronization signal when the display frame rate synchronization signal is switched from the first level to the second level.
3. The method of claim 1 or 2, wherein the independent display chip is further coupled to a system on a chip, SOC, the method further comprising, prior to adjusting a display frame rate of the display based on the display frame rate synchronization signal:
receiving image data sent by the SOC, and determining the data transmission rate of the image data sent by the SOC;
the adjusting the display frame rate of the display based on the display frame rate synchronization signal includes:
and adjusting the display frame rate of the display to a target frame rate based on the display frame rate synchronization signal, wherein the target frame rate is matched with the data transmission rate.
4. The method of claim 3, wherein after receiving the display frame rate synchronization signal sent by the display, the method further comprises:
transmitting the display frame rate synchronization signal to the SOC;
The receiving the image data sent by the SOC and determining the data transmission rate of the image data sent by the SOC includes:
receiving image data sent by the SOC based on the display frame rate synchronization signal;
and determining a data transmission rate of the SOC for transmitting the image data based on the display frame rate synchronization signal.
5. The method of claim 1, wherein the adjusting the display mode of the display from the first display mode to the second display mode based on the display frame rate synchronization signal comprises:
determining a display frame rate of the display based on the display frame rate synchronization signal;
adjusting a display mode of the display from a first display mode to a second display mode based on a display frame rate of the display and the display frame rate synchronization signal;
the driving chip of the display device does not store image data to be displayed in the first display mode, and stores the image data to be displayed in the second display mode; or alternatively
And in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
6. The method of claim 5, wherein if the display frame rate of the display is greater than a preset frame rate, the driving chip of the display stores the image data to be displayed in the first display mode, and the driving chip of the display does not store the image data to be displayed in the second display mode;
if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
7. A display control device, an independent display chip including the display control device, the independent display chip being connected with a display, the device comprising:
the first receiving module is used for receiving the display frame rate synchronous signal sent by the display;
the adjusting module is used for adjusting the display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal when the display content of the display is changed from a first display content to a second display content, wherein the first display mode corresponds to the first display content, and the second display mode corresponds to the second display content; and/or adjusting the display frame rate of the display based on the display frame rate synchronization signal when the frequency of the display content update of the display is changed.
8. The apparatus of claim 7, wherein the adjustment module is specifically configured to:
when the display content of the display is changed from the first type of display content to the second type of display content: when the display frame rate synchronous signal is switched from a first level to a second level, adjusting a display mode of the display from a first display mode to a second display mode based on the display frame rate synchronous signal; and/or
In the case where the frequency of display content update of the display is changed: and adjusting the display frame rate of the display based on the display frame rate synchronization signal when the display frame rate synchronization signal is switched from the first level to the second level.
9. The apparatus of claim 7 or 8, wherein the independent display chip is further connected to a system on chip, SOC, the apparatus further comprising:
the second receiving module is used for receiving the image data sent by the SOC and determining the data transmission rate of the image data sent by the SOC;
in the case of a change in the frequency of the display content update of the display, the adjustment module is specifically configured to:
and adjusting the display frame rate of the display to a target frame rate based on the display frame rate synchronization signal, wherein the target frame rate is matched with the data transmission rate.
10. The apparatus of claim 9, wherein the apparatus further comprises:
a transmitting module, configured to transmit the display frame rate synchronization signal to the SOC;
the second receiving module is specifically configured to:
receiving image data sent by the SOC based on the display frame rate synchronization signal;
and determining a data transmission rate of the SOC for transmitting the image data based on the display frame rate synchronization signal.
11. The apparatus according to claim 7, wherein in case the display content of the display is changed from the first type of display content to the second type of display content, the adjusting module is specifically configured to:
determining a display frame rate of the display based on the display frame rate synchronization signal;
adjusting a display mode of the display from a first display mode to a second display mode based on a display frame rate of the display and the display frame rate synchronization signal;
the driving chip of the display device does not store image data to be displayed in the first display mode, and stores the image data to be displayed in the second display mode; or alternatively
And in the first display mode, the driving chip of the display stores the image data to be displayed, and in the second display mode, the driving chip of the display does not store the image data to be displayed.
12. The apparatus of claim 11, wherein the driver chip of the display stores image data to be displayed in the first display mode and the driver chip of the display does not store image data to be displayed in the second display mode if the display frame rate of the display is greater than a preset frame rate;
if the display frame rate of the display is smaller than or equal to the preset frame rate, the driving chip of the display does not store the image data to be displayed in the first display mode, and the driving chip of the display stores the image data to be displayed in the second display mode.
13. An electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the display control method of any one of claims 1-6.
14. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the display control method according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310445121.6A CN116486745A (en) | 2023-04-24 | 2023-04-24 | Display control method and device and electronic equipment |
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| CN202310445121.6A CN116486745A (en) | 2023-04-24 | 2023-04-24 | Display control method and device and electronic equipment |
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