WO2022033182A1 - 显示面板的驱动方法和驱动装置 - Google Patents

显示面板的驱动方法和驱动装置 Download PDF

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Publication number
WO2022033182A1
WO2022033182A1 PCT/CN2021/101438 CN2021101438W WO2022033182A1 WO 2022033182 A1 WO2022033182 A1 WO 2022033182A1 CN 2021101438 W CN2021101438 W CN 2021101438W WO 2022033182 A1 WO2022033182 A1 WO 2022033182A1
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Prior art keywords
display panel
mode
refresh frequency
refresh
frequency
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PCT/CN2021/101438
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English (en)
French (fr)
Inventor
王玉青
陈心全
张小宝
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昆山国显光电有限公司
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Publication of WO2022033182A1 publication Critical patent/WO2022033182A1/zh
Priority to US17/984,706 priority Critical patent/US20230082882A1/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3266Details of drivers for scan electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3233Control 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 with pixel circuitry controlling the current through the light-emitting element
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0247Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0673Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0407Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435Change or adaptation of the frame rate of the video stream

Definitions

  • the embodiments of the present application relate to the field of display technology, for example, to a driving method and a driving device of a display panel.
  • the present application provides a driving method and a driving device for a display panel, so as to realize automatic switching of the refresh frequency of the display panel and at the same time ensure the display quality of the display panel under different refresh frequencies.
  • an embodiment of the present application provides a method for driving a display panel, including:
  • the refresh frequency of the display panel is switched to the refresh frequency corresponding to the application mode according to the application mode of the display panel, and the driving data corresponding to the application mode is called.
  • an embodiment of the present application further provides a driving device for a display panel, including:
  • the operation instruction acquisition module is set to acquire the operation instruction of the display panel
  • an application mode determination module configured to determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies;
  • the switching module is configured to switch the refresh frequency of the display panel to the refresh frequency corresponding to the application mode according to the application mode of the display panel, and call the driving data corresponding to the application mode.
  • the application mode of the display panel is determined according to the operation instruction, and the refresh frequency of the display panel is automatically switched according to the application mode, so that different application modes of the display panel correspond to different refresh rates. Therefore, it can realize the seamless and smooth switching of the refresh frequency of the display panel, avoid problems such as screen flicker and color cast, effectively solve the phenomenon of stuck, dizziness and motion blur at high refresh frequency, and improve the high refresh rate.
  • the experience effect of refresh rate is not limited to refresh rate.
  • the drive data corresponding to the application mode is called, which can ensure the display quality of the display panel under different refresh frequencies, reduce the number of complex instructions sent by the main board, thereby saving the power consumption of the main board and prolonging the Displays the standby time of the panel.
  • FIG. 1 is a schematic structural diagram of a pixel driving circuit.
  • FIG. 2 is a flowchart of a method for driving a display panel according to an embodiment of the present application.
  • FIG. 3 is a flowchart of another method for driving a display panel provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another method for driving a display panel provided by an embodiment of the present application.
  • FIG. 5 is a graph of luminous brightness-gray scale when 120Hz shares gamma data of 90Hz.
  • FIG. 6 is a luminous brightness-grayscale curve diagram when 120Hz shares gamma data of 144Hz.
  • FIG. 7 is a flowchart of another method for driving a display panel according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a driving device for a display panel according to an embodiment of the present application.
  • the display panel includes a plurality of pixel units, and each pixel unit includes a pixel driving circuit.
  • the pixel driving circuit includes a first transistor T1 , a second transistor T2 , a storage capacitor Cst and a light-emitting device OLED.
  • the driving current generated by the second transistor T2 drives the light emitting device OLED to emit light.
  • the driving current of the second transistor T2 is controlled by the gate voltage of the second transistor T2, and the gate voltage of the second transistor T2 is the data voltage Vdata provided by the data line through the first transistor T1 and maintained by the storage capacitor Cst, That is, the data voltage Vdata needs to be charged to the storage capacitor Cst.
  • the refresh frequency of the display panel becomes higher, the time for the data voltage Vdata of the pixel driving circuit to be charged to the storage capacitor Cst becomes shorter, resulting in insufficient writing of the data voltage Vdata to the storage capacitor Cst, resulting in the gate-source voltage of the second transistor T2.
  • the difference becomes larger, so that the driving current generated by the second transistor T2 becomes larger, which leads to an increase in the luminous brightness of the light-emitting device OLED, which causes the display panel to have a problem of black and bright.
  • the display panel is prone to problems such as screen flickering, abnormal lighting between columns, and uneven display.
  • the above problem can be adjusted by issuing instructions to the driver chip of the display panel through the motherboard side to adjust the refresh frequency, but the process is complicated, which is not conducive to the application of the client.
  • embodiments of the present application provide a method for driving a display panel. This embodiment is applicable to the situation that different application scenarios of the display panel correspond to different refresh frequencies.
  • the method can be executed by a driving device of the display panel, and the display device of the display panel can be integrated on the driving chip of the display panel. As shown in FIG. 2 , the method includes S110 to S130.
  • the operation instruction of the display panel is an instruction generated by the user of the display panel operating the display panel.
  • the user can operate the display panel to make the display panel open an application program or browse a web page, etc.
  • the user's instruction is an operation instruction, and different operations of the user on the display panel form different operations. instruction.
  • the power-on process of the display panel is also included. After the display panel is powered on, the driver chip of the display panel loads the data burned in the burning process, and then loads the initialization code, so that the display panel can normal drive display.
  • S120 Determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies.
  • the driver chip includes a random access memory (Random Access Memory, RAM), and the RAM is set to store fixed programs and data required for driving the display panel.
  • the RAM may store driving data
  • the RAM may also store set register values of the driver chip, and different register values may correspond to different application modes of the display panel.
  • the operation instruction is of the type of static image display, and the corresponding register value is equal to the register value corresponding to an application mode stored in the RAM
  • the driver chip receives the operation instruction of static image display
  • the application of the display panel is determined.
  • the mode is the application mode corresponding to the register value.
  • different application modes have different requirements on the refresh frequency of the display panel. After the application mode corresponding to the operation command is determined, different refresh frequencies can be called according to the application mode.
  • the driving data includes data of driving signals for driving the display of the display panel and compensation data of the driving signals.
  • the driving signal may include a scan signal, a data signal, etc.
  • the compensation data of the driving signal may include compensation data of the data signal.
  • the driving data corresponding to different refresh frequencies are different.
  • the corresponding driving data is called at the same time, so that after the refresh frequency of the display panel is switched, the display panel can drive the display normally, ensuring the display The display quality of the panel at different refresh rates. At the same time, it can reduce the number of complex commands sent by the mainboard, thereby saving the power consumption of the mainboard and prolonging the standby time of the display panel.
  • the application mode of the display panel is determined according to the operation instruction, and the refresh frequency of the display panel is automatically switched according to the application mode, so that different application modes of the display panel correspond to different refresh frequencies , so that the refresh rate of the display panel can be switched seamlessly and smoothly, avoiding problems such as screen flicker and color cast, effectively solving the phenomenon of stuck, vertigo and motion blur at high refresh rate, and improving high refresh rate.
  • problems such as screen flicker and color cast
  • the drive data corresponding to the application mode is called, which can ensure the display quality of the display panel under different refresh frequencies, reduce the number of complex instructions sent by the main board, thereby saving the power consumption of the main board and prolonging the Displays the standby time of the panel.
  • FIG. 3 is a flowchart of another method for driving a display panel provided by an embodiment of the present application. As shown in FIG. 3 , the method includes S210 to S240 .
  • Different application modes correspond to different refresh frequencies, and different refresh frequencies correspond to different drive data.
  • driving data corresponding to different application modes can be set and stored, so that in the subsequent application process of the display panel, the corresponding driving data can be called according to the refresh frequency.
  • the drive data corresponding to different application modes can be stored in the RAM or in the flash, and the flash communicates with the driver chip through the Serial Peripheral Interface (SPI).
  • SPI Serial Peripheral Interface
  • the driver chip calls the driver data in the RAM or flash according to the refresh frequency.
  • the drive data may include scan drive signals, gamma data, and Demura data.
  • the scan drive signals are timing data of the scan signals of the display panel.
  • the scan drive signals can determine the output frequency of the scan signals to drive the corresponding refresh frequency.
  • the gamma data provides a data voltage for the display panel, and controls the luminous brightness of the display panel in a gray scale. Different refresh frequencies correspond to different Display Brighting Values (DBVs), so different gamma data are set for different refresh frequencies, so that the display panel has the same luminous brightness corresponding to the same grayscale at different refresh frequencies.
  • Demura data includes the data voltage compensation data corresponding to each grayscale. When the refresh frequency of the display panel is different, before the compensation, the luminous brightness corresponding to the same grayscale is different. By setting different refresh frequencies to correspond to different Demura data, different When the refresh frequency is used, the luminous brightness corresponding to the same gray scale is the same. In conclusion, by setting different application modes to correspond to different driving data, the display quality of the display panel under different refresh frequencies can be guaranteed.
  • S230 Determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies.
  • the application mode of the display panel is determined according to the operation instruction, including:
  • the application mode of the display panel is the first mode.
  • the Always On Display (AOD) of the display panel is a mode in which the display panel displays a relatively single picture for a long time.
  • the refresh frequency of the display panel is required to be relatively low.
  • the display panel displays a static image and the user does not have an operation instruction within the first preset time
  • the display image of the display panel remains unchanged, and after the first preset time, the display panel enters the silent screen.
  • the refresh frequency of the panel is also required to be relatively low.
  • the display panel is off-screen and the application mode in which the display panel displays a static image and there is no operation instruction within the first preset time can be divided into one mode, that is, the first mode.
  • the refresh frequency of the first mode is relatively low, for example, 30 Hz.
  • the first preset time may be preset as required, for example, may be several seconds.
  • the operation instruction is a static image operation instruction, or if the operation instruction is a dynamic image interaction instruction and the frequency of the dynamic image interaction instruction within the second preset time is less than or equal to the first preset frequency, or the operation instruction is to play less than or equal to the first preset frequency If the playback instruction of the dynamic picture within the preset time period is three, the application mode of the display panel is determined to be the second mode.
  • the still picture operation instruction may be an instruction for operating the still picture.
  • the operation instructions of the display panel can be operations such as opening an application program, web browsing, etc.
  • the operation instruction is a static screen operation instruction, the requirements for the refresh rate of the display panel are relatively normal.
  • the operation instruction may be an application instruction of the first type of game.
  • the application instruction of the first type of game may be the application of the mini-game.
  • the mini-game may be a game in which different graphics are presented on the game interface and the same graphics are connected to eliminate.
  • the second preset time may be a time period set as required, for example, a unit time.
  • the first preset frequency may be set according to the operation frequency of the user within the second preset time when playing mini games and other games.
  • the operation instruction when the operation instruction is a playback instruction for playing a dynamic picture that is less than or equal to the third preset time, it may be an operation such as short video playback.
  • the third preset time may be five minutes, and playing a dynamic picture less than or equal to the third preset time may be a short video within five minutes.
  • the requirements for the refresh rate of the display panel are also conventional.
  • the operation instruction can be a static image operation instruction, or the operation instruction is a dynamic image interaction instruction and the frequency of the dynamic image interaction instruction within the second preset time is less than or equal to the first preset frequency, or the operation instruction is to play less than or equal to the first preset frequency.
  • the application mode of the play instruction of the dynamic picture equal to the third preset time is divided into one mode, that is, the second mode.
  • the refresh frequency of the second mode is the normal refresh frequency, and the refresh frequency of the second mode is greater than the refresh frequency of the first mode. For example, it can be 60Hz and 90Hz.
  • the operation instruction is a dynamic image interaction instruction and the frequency of the dynamic image interaction instruction within the second preset time is greater than the first preset frequency, or the operation instruction is a playback instruction to play a dynamic image larger than the third preset time, then it is determined to display
  • the application mode of the panel is the third mode, wherein the refresh frequency of the first mode is lower than the refresh frequency of the second mode, and the refresh frequency of the second mode is lower than the refresh frequency of the third mode.
  • the second preset time may be a unit time, and the frequency of the dynamic picture interaction instructions is the number of interaction instructions in a unit time.
  • the first preset frequency may be an interactive command frequency value set as required. For example, when the second type of game is applied, the frequency of the interactive instructions of the dynamic picture is relatively high, and the first preset frequency can be set according to the frequency difference of the interactive instructions of the dynamic picture of the first type of game and the second type of game.
  • the frequency of the dynamic picture interaction instruction within the second preset time is greater than the first preset frequency, the dynamic picture interaction instruction can be an operation in a large game environment, wherein the large game can be other games different from small games.
  • the play instruction for playing a dynamic picture longer than the third preset time may be an operation such as playing a long video, such as playing a movie. Both of them require a relatively high refresh frequency, so the operation command can be a dynamic screen interaction command and the frequency of the dynamic screen interaction command within the second preset time is greater than the first preset frequency, or the operation command is to play more than the third preset frequency. It is assumed that the application mode of the play instruction of the dynamic picture of the time is divided into one mode, that is, the third mode. The refresh frequency of the third mode is greater than that of the second mode, for example, it may be 120 Hz and 144 Hz.
  • the refresh frequency of the first mode includes a first refresh frequency
  • the second mode and the third mode respectively include at least two different refresh frequencies, wherein the refresh frequencies in the same application mode share gamma data and Demura data.
  • the scan drive signal with the minimum refresh rate in the same application mode is obtained by inserting the scan drive signal with the maximum refresh rate in the same application mode into the front porch parameter.
  • the operation instructions in the same application mode may include multiple types, and different operation instructions may correspond to the same refresh frequency or different refresh frequencies according to the display requirements of the display panel.
  • the refresh frequency of the second mode includes the second refresh frequency and the third refresh frequency
  • the refresh frequency of the third mode includes the fourth refresh frequency and the fifth refresh frequency
  • the refresh frequency requirements of the first mode are relatively low, so the first mode
  • the refresh frequency may include a first refresh frequency, for example, the first refresh frequency may be 30Hz.
  • the refresh frequency requirements of the two operation commands in the second mode are quite different, so the refresh frequency of the second mode may include the second refresh frequency and the third refresh frequency.
  • the second refresh frequency may be 60 Hz
  • the third refresh frequency may be 90Hz.
  • the refresh frequency requirements of the two operation commands of the third mode are quite different, so the refresh frequency of the third mode may include the refresh frequency of the third mode including the fourth refresh frequency and the fifth refresh frequency, for example, the fourth refresh frequency It may be 120Hz, and the fifth refresh rate may be 144Hz.
  • the same application mode includes at least two refresh frequencies, the at least two refresh frequencies share gamma data and Demura data, so as to ensure that the display panel can display normally under different refresh frequencies and reduce the additionally set data, reducing the production of the display panel. Difficulty and production costs increase the supply output of display panels.
  • the scan drive signals of different refresh frequencies in the same application mode are obtained by inserting the scan drive signals of the maximum refresh frequency in the same application mode into the parameters of the front porch, so as to ensure the normal display of the display panel under different refresh frequencies
  • the second mode includes a second refresh frequency and a third refresh frequency.
  • the second refresh frequency may be 60 Hz
  • the third refresh frequency may be 90 Hz.
  • the scanning driving signal corresponding to 60 Hz can be obtained by inserting the scanning driving signal corresponding to 90 Hz into the front porch parameters, that is, the parameters of the front porch are expanded and the scanning driving circuit is increased. Timing length.
  • the gamma data and Demura data corresponding to 60Hz can share the gamma data and Demura data corresponding to 90Hz.
  • the third mode includes a fourth refresh rate and a fifth refresh rate.
  • the fourth refresh rate may be 120 Hz
  • the fifth refresh rate may be 144 Hz.
  • the scanning driving signal corresponding to 120 Hz can be obtained by inserting the scanning driving signal corresponding to 144 Hz into the front porch parameters, that is, the front porch parameters are expanded to increase the scanning driving circuit. Timing length.
  • the gamma data and Demura data corresponding to 120Hz can share the gamma data and Demura data corresponding to 144Hz.
  • the driving method of the display panel further includes:
  • the refresh frequency of the second mode is determined to be the second refresh frequency; if the operation instruction is a dynamic image interaction instruction and the frequency of the dynamic image interaction instruction within the second preset time is less than or equal to the first refresh rate
  • the refresh frequency required for the static picture operation command in the second mode and the dynamic picture interaction command, and the frequency of the dynamic picture interaction command within the second preset time is less than the refresh frequency required for the first preset frequency and the playback frequency is less than the third preset frequency.
  • the difference between the refresh frequencies required by the playback instructions of the dynamic pictures of time is relatively large, so specific operation instructions can be made to correspond to different refresh frequencies in the same mode, which can improve the display effect of the display panel.
  • the refresh frequency of the third mode includes the fourth refresh frequency and the fifth refresh frequency
  • the driving method of the display panel also includes:
  • the refresh frequency of the third mode is determined to be the fourth refresh frequency; if the operation command is a dynamic picture interaction command and the dynamic picture interaction command is in the second preset If the frequency within the time period is greater than the first preset frequency, the refresh frequency of the third mode is determined to be the fifth refresh frequency; wherein, the fourth refresh frequency is smaller than the fifth refresh frequency.
  • the dynamic picture interaction instruction in the third mode and the frequency of the dynamic picture interaction instruction within the second preset time is greater than the refresh frequency required by the first preset frequency and the playback instruction for playing the dynamic picture greater than the third preset time.
  • the difference between the required refresh frequencies is relatively large, so specific operation instructions can be made to correspond to different refresh frequencies in the same mode, which can improve the display effect of the display panel.
  • the refresh frequency of the display panel can be switched to a refresh frequency corresponding to the application mode according to the operation command, and then the scan drive signal, gamma data and Demura data corresponding to the refresh frequency can be called to realize the refresh frequency of the display panel. of automatic switching.
  • the crystal oscillator frequency in the driving chip needs to be switched, so as to achieve stable matching of the relevant timing when the refresh frequency of the display panel is switched.
  • the crystal oscillator frequency of the driver chip on the display panel can be switched from 100MHz to 130MHz synchronously to achieve stable matching of 120Hz or 144Hz related timing.
  • FIG. 4 is a flowchart of another method for driving a display panel provided by an embodiment of the present application. As shown in FIG. 4 , the method includes S310 to S340 .
  • S310 Preset and store the driving data of the first mode, the driving data of the second mode, and the driving data of the third mode, wherein the scanning driving signal of the first mode is obtained by frequency division of the scanning signal of the second mode, and the first mode is The gamma data of the module is obtained by mapping the gamma data of the second mode, and the Demura data of the first mode is the same as the Demura data of the second mode.
  • the high refresh frequency is generally realized by changing the frequency of the crystal oscillator in the driving chip, which will result in a relatively large change in the driving data.
  • the refresh frequency of the third mode relative to the refresh frequency of the second mode is implemented based on the change of the frequency of the crystal oscillator in the driving chip.
  • the driving data of the second mode and the driving data of the third mode are shared, the brightness of the display panel will be shifted.
  • the brightness shift of the display panel when the refresh frequency of the second mode is switched to the refresh frequency of the third mode can be reduced.
  • FIG. 5 is a luminous brightness-grayscale curve diagram when 120 Hz shares 90 Hz gamma data
  • FIG. 6 is 120 Hz sharing 144 Hz The gamma data of the luminous intensity-grayscale curve.
  • the abscissa is the grayscale
  • the ordinate is the brightness
  • curve 1 is the luminous brightness-grayscale curve when 120Hz shares 90Hz gamma data
  • curve 2 is the luminous brightness-grayscale curve when 120Hz shares 144Hz gamma data
  • gamma2.0 is a curve with a gamma value of 2.0
  • gamma 2.4 is a curve with a gamma value of 2.4.
  • the luminous brightness-grayscale curve is biased towards the curve when gamma is equal to 2.0, and the 120Hz luminescence brightness-grayscale curve is not in line with human viewing.
  • the display panel can call the driving data of the second mode in the application mode of the second mode, and call the driving data of the third mode in the application mode of the third mode.
  • the driving data of the three modes can avoid the shift of the luminous brightness-grayscale curve in the application mode of the third mode, so that the luminous brightness of the display panel in the third mode is more in line with the human eye viewing, and the experience effect of the display panel is improved.
  • separately setting the driving data of the second mode and the driving data of the third mode can ensure the display uniformity of the display panel in the application mode of the third mode, and at the same time reduce the flicker of the pattern when the display panel is displayed.
  • the refresh frequency of the second mode includes 90 Hz
  • 90 Hz is used as the normal frequency
  • the refresh frequency of the third mode includes 120 Hz.
  • Table 1 shows the uniformity of the display panel under different grayscales when the refresh rate of the display panel is 90Hz
  • Table 2 shows the uniformity of the display panel under different grayscales when the refresh rate of the display panel is 120Hz
  • Table 3 shows the flicker under different refresh rates value and average.
  • the uniformity of the display panel is the ratio of the minimum brightness to the maximum brightness under the same gray scale in the nine brightness acquisition points 1-9 in the display panel. It can be seen from Table 1 and Table 2 that the display uniformity of the display panel in the application mode of the second mode with different grayscales has no obvious change from the display uniformity of different grayscales in the application mode of the third mode, so that the display panel can be guaranteed.
  • the display uniformity of the display panel at a high refresh frequency ensures the display quality of the display panel at a high refresh frequency. It can be seen from Table 3 that during the switching process of the refresh frequency of the display panel from low to high, the flicker is slightly reduced. That is, by separately setting the driving data of the second mode and the driving data of the third mode, the flicker of the display panel at a high refresh frequency can be reduced, thereby improving the display quality of the display panel at a high refresh frequency.
  • the driving data of the first mode can be calculated according to the driving data of the second mode, and then the driving data of the first mode can be calculated according to the driving data of the second mode.
  • the data is stored in advance, so that the display panel can directly call the driving data of the first mode when other application modes are switched to the first mode.
  • the scan drive signal of the first mode can be obtained by frequency division of the scan drive signal of the second mode, and the scan drive signal of the second mode can be obtained by frequency division to obtain the scan drive signal of the first mode, which can ensure the first mode.
  • the accuracy of the scanning driving signal in one mode can avoid additional calculation of the scanning driving signal in the first mode, reduce the production difficulty and production cost of the display panel, and improve the supply output of the display panel.
  • the gamma data of the first mode can be obtained by mapping the gamma data of the second mode.
  • the display panel is generally an active screen or the display panel displays a static image and there is no operation instruction within the first preset time, and the user does not have high requirements for the display uniformity of the display panel.
  • the Demura data of the first mode can share the Demura data of the second mode, which can not only meet the needs of users, but also avoid the need to additionally set the Demura data of the first mode, reduce the production difficulty and production cost of the display panel, and improve the display. Panel supply output.
  • S330 Determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies.
  • the method further includes:
  • the display panel does not detect the operation instruction corresponding to the third mode within the fourth preset time, determine that the application mode of the display panel is the application mode corresponding to the new operation instruction;
  • the display panel detects the operation instruction corresponding to the third mode within the fourth preset time, it is determined that the application mode of the display panel is the third mode.
  • the refresh frequency of the display panel is relatively high.
  • the application mode corresponding to the new operation command is the first mode or the second mode, at this time, it can be determined according to whether the third mode is detected within the fourth preset time.
  • the operation instruction determines whether the application mode of the display panel changes. If the operation instruction corresponding to the third mode is not detected within the fourth preset time, the application mode of the display panel is determined according to the new operation instruction.
  • the application mode of the display panel can be the first mode or the second mode If the operation instruction corresponding to the third mode is detected within the fourth preset time, it is determined that the application mode of the display panel is still the third mode, which avoids the display panel from rapidly switching the application mode under the new operation instruction, reducing the The switching frequency of the application mode of the display panel is adjusted, so that the comfort of the user in using the display panel can be ensured.
  • the fourth preset time can be set as required, for example, 10s.
  • the operation instruction of the display panel is a playback instruction for playing a dynamic picture greater than the third preset time
  • the application mode of the display panel is the third mode
  • a new operation instruction is detected, for example, the display panel Cut out the dynamic picture and enter the static picture.
  • the timing starts. If no operation command corresponding to the third mode is detected within the fourth preset time, for example, the display panel switches back to the dynamic picture to continue playing, the application mode of the display panel is determined according to the new operation command.
  • the application mode of the display panel may be the first mode or the second mode.
  • the application mode of the display panel is the third mode, so as to avoid the speed of switching between the new operation command and the operation command corresponding to the third mode.
  • the operation command of the display panel is a dynamic picture interaction command and the frequency of the dynamic picture interaction command within the second preset time is greater than the first preset frequency, so that the application mode of the display panel is the third mode
  • the detection To a new operation command for example, the display panel switches to the third mode, and no operation command corresponding to the third mode is detected within the fourth preset time, for example, the display panel switches back to the dynamic picture to continue playing, according to the new operation command.
  • the operation command of the determines the application mode of the display panel.
  • the application mode of the display panel is determined to be the third mode, and the application mode can also be reduced.
  • the switching frequency of the display panel can be guaranteed to ensure the comfort of the user when using the display panel.
  • FIG. 7 is a flowchart of another method for driving a display panel provided by an embodiment of the present application. As shown in FIG. 7 , when the refresh frequency of the third mode includes a fourth refresh frequency and a fifth refresh frequency, the fourth refresh frequency is less than At the fifth refresh rate, the method includes S510 to S550.
  • S520 Determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies.
  • S530 calculate scan drive signals, gamma data and Demura data corresponding to all refresh frequencies less than the third refresh frequency according to the first refresh frequency and the third refresh frequency; calculate the third refresh frequency according to the third refresh frequency and the fifth refresh frequency Scanning drive signals, gamma data, and Demura data corresponding to all refresh frequencies between the fifth refresh frequency.
  • the third refresh frequency may be the basic refresh frequency of the display panel, that is, the refresh frequency at which the display panel is initialized. Other refresh frequencies of the display panel can be switched on the basis of the third refresh frequency.
  • the first refresh frequency can be obtained by dividing the frequency of the third refresh frequency, which can ensure the accuracy of the first refresh frequency.
  • the scan drive signal, gamma data and Demura data corresponding to all refresh frequencies less than the third refresh frequency are calculated by the first refresh frequency and the third refresh frequency, so that any low refresh frequency can be switched according to the operation instruction, so as to achieve a more accurate low refresh rate. Frequency adaptation makes the application modes of the first mode and the second mode more energy-saving and smooth.
  • scan driving signals, gamma data, and Demura data corresponding to a refresh frequency less than the third refresh frequency may be fitted according to the scan driving signals, gamma data, and Demura data corresponding to the first refresh frequency and the third refresh frequency.
  • the scan drive signal, gamma data and Demura data corresponding to all refresh frequencies between the third refresh frequency and the fifth refresh frequency are calculated by the third refresh frequency and the fifth refresh frequency. It can also be realized by switching any high refresh frequency according to the operation instruction. More accurate high-frequency adaptation makes the application mode of the third mode smoother and improves the user experience of the display panel.
  • the scan drive signals corresponding to all refresh frequencies between the third refresh frequency and the fifth refresh frequency can be fitted according to the scan drive signals corresponding to the third refresh frequency and the fifth refresh frequency, the gamma data and the Demura data. Gamma data and Demura data.
  • Embodiments of the present application also provide a driving device for a display panel.
  • the drive device of the display panel includes:
  • the operation instruction acquiring module 10 is configured to acquire the operation instruction of the display panel.
  • the application mode determination module 20 is configured to determine the application mode of the display panel according to the operation instruction; wherein, different application modes correspond to different refresh frequencies.
  • the switching module 30 is configured to switch the refresh frequency of the display panel to the refresh frequency corresponding to the application mode according to the application mode of the display panel, and call the driving data corresponding to the application mode.
  • the application mode determination module determines the application mode of the display panel according to the operation instruction
  • the switching module automatically switches the refresh frequency of the display panel according to the application mode, so that the display Different application modes of the panel correspond to different refresh frequencies, so that the refresh frequency of the display panel can be seamlessly and smoothly switched, avoiding problems such as splash screen and color shift, and effectively solving the problems of freezing, dizziness and color shift under high refresh frequency.
  • the phenomenon of motion blur improves the experience of high refresh rate.
  • the switching module switches the refresh frequency of the display panel
  • the drive data corresponding to the application mode is called, which can ensure the display quality of the display panel under different refresh frequencies, reduce the number of complex instructions sent by the main board, and save the use of the main board. power to extend the standby time of the display panel.
  • the driving device of the display panel further includes:
  • the operation instruction judgment module is configured to judge that the display panel is within the fourth preset time after the current application mode of the display panel is the third mode, and after detecting that the application mode corresponding to the new operation instruction is the first mode or the second mode Whether the operation command corresponding to the third mode is detected;
  • the application mode determination module is also set to determine that the application mode of the display panel is the application mode corresponding to the new operation instruction if the display panel does not detect the operation instruction corresponding to the third mode within the fourth preset time; When the display panel detects the operation instruction corresponding to the third mode within the fourth preset time, it is determined that the application mode of the display panel is the third mode.
  • the operation instruction determination module determines whether the display panel is in the fourth preset time after the current application mode of the display panel is the third mode and detects that the application mode corresponding to the new operation instruction is the first mode or the second mode An operation command corresponding to the third mode is detected. If the display panel does not detect the operation command corresponding to the third mode within the fourth preset time, the operation command determination module will form a first signal and output it to the application mode determination module, and the application mode determination module determines the display according to the first signal The application mode of the panel is the application mode corresponding to the new operation command.
  • the operation command determination module will form a second signal and output it to the application mode determination module, and the application mode determination module determines the display panel according to the second signal
  • the application mode is the third mode.
  • the operation instruction determination module determines whether the current application mode of the display panel is in the third mode, and detects whether the application mode corresponding to the new operation instruction is the first mode or the second mode within the fourth preset time.
  • the judgment module and the application mode determination module can be based on the operation instruction to prevent the display panel from rapidly switching the application mode under the new operation instruction, reducing the switching frequency of the application mode of the display panel, thereby ensuring that User comfort with the display panel.

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Abstract

一种显示面板的驱动方法和驱动装置。显示面板的驱动方法包括:获取显示面板的操作指令(S110);根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率(S120);根据显示面板的应用模式切换显示面板的刷新频率至应用模式对应的刷新频率,并调用与应用模式对应的驱动数据(S130)。

Description

显示面板的驱动方法和驱动装置
本申请要求在2020年8月10日提交中国专利局、申请号为202010796934.6的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域,例如涉及一种显示面板的驱动方法和驱动装置。
背景技术
在显示面板的应用过程中,不同的应用场景对刷新频率的需求不同,因此需要设置显示面板的刷新频率为动态刷新频率。由于显示面板的像素驱动电路的限制,当显示面板的刷新频率由低频调节到高频时,容易出现显示面板发光亮度大,瞬间闪屏,隔列亮异常和显示不均等问题。
发明内容
本申请提供一种显示面板的驱动方法和驱动装置,以实现显示面板的刷新频率自动切换,同时保证了显示面板在不同刷新频率下的显示质量。
第一方面,本申请实施例提供了一种显示面板的驱动方法,包括:
获取显示面板的操作指令;
根据所述操作指令确定所述显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率;
根据所述显示面板的应用模式切换所述显示面板的刷新频率至所述应用模式对应的刷新频率,并调用与所述应用模式对应的驱动数据。
第二方面,本申请实施例还提供了一种显示面板的驱动装置,包括:
操作指令获取模块,设置为获取显示面板的操作指令;
应用模式确定模块,设置为根据所述操作指令确定所述显示面板的应用模 式;其中,不同的应用模式对应不同的刷新频率;
切换模块,设置为根据所述显示面板的应用模式切换所述显示面板的刷新频率至所述应用模式对应的刷新频率,并调用与所述应用模式对应的驱动数据。
本申请实施例的技术方案,在获取显示面板的操作指令后,根据操作指令确定显示面板的应用模式,并根据应用模式自动切换显示面板的刷新频率,使得显示面板的不同应用模式对应不同的刷新频率,从而可以实现显示面板的刷新频率的无缝顺滑切换,避免出现闪屏和色偏等问题,有效地解决了高刷新频率下的卡顿、眩晕和运动模糊感的现象,提升了高刷新频率的体验效果。另外,在显示面板切换刷新频率时,调用与应用模式对应的驱动数据,可以保证显示面板在不同刷新频率下的显示质量,减少主板端发送的复杂指令数量,进而节省了主板的用电,延长显示面板的待机时间。
附图说明
图1为一种像素驱动电路的结构示意图。
图2为本申请实施例提供的一种显示面板的驱动方法的流程图。
图3为本申请实施例提供的另一种显示面板的驱动方法的流程图。
图4为本申请实施例提供的又一种显示面板的驱动方法的流程图。
图5为120Hz共用90Hz的gamma数据时发光亮度-灰阶曲线图。
图6为120Hz共用144Hz的gamma数据时发光亮度-灰阶曲线图。
图7为本申请实施例提供的又一种显示面板的驱动方法的流程图。
图8为本申请实施例提供的一种显示面板的驱动装置的结构示意图。
具体实施方式
随着显示面板行业的成熟发展,显示面板在不同的应用场景下对刷新频率的需求不同。例如在显示一些相对静态的画面时,可以降低刷新频率已节省功耗;而对于较高的显示需求时,可以提升刷新频率用以提升显示品质。因此, 通过设置显示面板的刷新频率可调,既能有效的降低显示屏的功耗,也能提高显示画质。显示面板包括多个像素单元,每个像素单元包括像素驱动电路。
如图1所示,该像素驱动电路包括第一晶体管T1、第二晶体管T2、存储电容Cst和发光器件OLED。在像素驱动电路工作时,第二晶体管T2产生的驱动电流驱动发光器件OLED发光。第二晶体管T2的驱动电流大小由第二晶体管T2的栅极电压控制,而第二晶体管T2的栅极电压为由数据线通过第一晶体管T1提供的数据电压Vdata,并通过存储电容Cst维持,即数据电压Vdata需充电至存储电容Cst。当显示面板的刷新频率变高时,像素驱动电路的数据电压Vdata充电至存储电容Cst的时间变短,导致数据电压Vdata未被充分写入至存储电容Cst,造成第二晶体管T2的栅源压差变大,从而使得第二晶体管T2产生的驱动电流变大,导致发光器件OLED的发光亮度增加,使得显示面板存在黑偏亮的问题。另外,在显示面板的刷新频率变高的瞬间,显示面板容易出现闪屏、隔列亮异常和显示不均等问题。上述问题可以通过主板端对显示面板的驱动芯片下发指令进行刷新频率调节,但过程复杂,不利于客户端的应用。
针对上述技术问题,本申请实施例提供了一种显示面板的驱动方法。本实施例可适用于显示面板的不同应用场景对应不同的刷新频率的情况,该方法可以由显示面板的驱动装置来执行,显示面板的显示装置可以集成于显示面板的驱动芯片上。如图2所示,该方法包括S110至S130。
S110、获取显示面板的操作指令。
显示面板的操作指令是显示面板的用户对显示面板进行操作生成的指令。例如,在用户使用显示面板的过程中,用户可以操作显示面板使显示面板打开应用程序或进行网页浏览等,此时用户的指令即为操作指令,用户对显示面板的不同操作均形成不同的操作指令。
另外,在获取显示面板的操作指令之前,还包括显示面板上电过程,在显示面板上电之后,显示面板的驱动芯片加载烧录过程中烧录的数据,然后加载初始化代码,使得显示面板能够正常驱动显示。
S120、根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率。
在操作指令形成后,操作指令会传输至显示面板的驱动芯片。驱动芯片包括随机存取存储器(Random Access Memory,RAM),RAM设置为存储显示面板驱动所需的固定程序和数据。例如,RAM可以存储有驱动数据,RAM还可以存储有设定的驱动芯片的寄存器值,不同的寄存器值可以对应显示面板不同的应用模式。当驱动芯片获取操作指令后,驱动芯片根据操作指令的类型确定操作指令对应的寄存器值,并与RAM存储的寄存器值进行比较,从而可以根据比较结果确定显示面板的应用模式。例如,操作指令为静态画面显示的类型,其对应的寄存器值与RAM中存储的一种应用模式对应的寄存器值相等,则在驱动芯片接收到静态画面显示的操作指令时,确定显示面板的应用模式为寄存器值对应的应用模式。另外,不同的应用模式对显示面板的刷新频率的需求不同,当确定操作指令对应的应用模式后,则可以根据应用模式调用不同的刷新频率。
S130、根据显示面板的应用模式切换显示面板的刷新频率至应用模式对应的刷新频率,并调用与应用模式对应的驱动数据。
驱动数据包括驱动显示面板显示的驱动信号的数据和驱动信号的补偿数据。例如,驱动信号可以包括扫描信号和数据信号等,驱动信号的补偿数据可以包括数据信号的补偿数据。在确定显示面板的应用模式后,根据显示面板的应用模式切换显示面板的刷新频率,使得显示面板的刷新频率切换至应用模式对应的刷新频率,从而实现显示面板的刷新频率的自动切换,实现显示面板的刷新频率的无缝顺滑切换,避免出现闪屏和色偏等问题,有效地解决了高刷新频率下的卡顿、眩晕和运动模糊感的现象,提升了高刷新频率的体验效果。另外,不同的刷新频率对应的驱动数据不同,在显示面板的刷新频率切换时,同时调用与其对应的驱动数据,从而使得显示面板的刷新频率切换后,显示面板能够正常的驱动显示,保证了显示面板在不同刷新频率下的显示质量。同时可以减少主板端发送的复杂指令数量,进而节省了主板的用电,延长显示面板的待机 时间。
本实施例的技术方案,在获取显示面板的操作指令后,根据操作指令确定显示面板的应用模式,并根据应用模式自动切换显示面板的刷新频率,使得显示面板的不同应用模式对应不同的刷新频率,从而可以实现显示面板的刷新频率的无缝顺滑切换,避免出现闪屏和色偏等问题,有效地解决了高刷新频率下的卡顿、眩晕和运动模糊感的现象,提升了高刷新频率的体验效果。另外,在显示面板切换刷新频率时,调用与应用模式对应的驱动数据,可以保证显示面板在不同刷新频率下的显示质量,减少主板端发送的复杂指令数量,进而节省了主板的用电,延长显示面板的待机时间。
图3为本申请实施例提供的另一种显示面板的驱动方法的流程图,如图3所示,该方法包括S210至S240。
S210、设置并存储不同应用模式对应的驱动数据,驱动数据包括扫描驱动信号、gamma数据和Demura数据。
不同的应用模式对应不同的刷新频率,不同的刷新频率对应不同的驱动数据。在显示面板的程序烧录过程中,可以设置并存储不同应用模式对应的驱动数据,从而在后续显示面板的应用过程中,可以根据刷新频率调用与其对应的驱动数据。不同应用模式对应的驱动数据可以存储于RAM中,还可以存储于flash中,flash通过串行外设接口(Serial Peripheral Interface,SPI)与驱动芯片通信连接。在后续显示面板的应用过程中,驱动芯片根据刷新频率调用RAM或flash中的驱动数据。驱动数据可以包括扫描驱动信号、gamma数据和Demura数据,扫描驱动信号为显示面板扫描信号的时序数据,通过扫描驱动信号可以确定扫描信号的输出频率,从而用于驱动与其对应的刷新频率。gamma数据为显示面板提供数据电压,控制显示面板在一灰阶下的发光亮度。不同的刷新频率对应不同的显示亮度值(Display Brighting Value,DBV),因此不同的刷新频率设置不同的gamma数据,使得显示面板在不同的刷新频率下同一灰阶对应的发光亮度相同。Demura数据包括每一灰阶对应的数据电压补偿数据,当显示面 板的刷新频率不同时,在补偿之前,同一灰阶对应的发光亮度不同,通过设置不同刷新频率对应不同的Demura数据,从而使不同刷新频率时,同一灰阶对应的发光亮度相同。综上,通过设置不同的应用模式对应不同的驱动数据,可以保证显示面板在不同刷新频率下的显示质量。
S220、获取显示面板的操作指令。
S230、根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率。
S240、根据显示面板的应用模式切换显示面板的刷新频率至应用模式对应的刷新频率,并调用与应用模式对应的驱动数据。
可选的,根据操作指令确定显示面板的应用模式,包括:
若显示面板息屏,或显示面板显示静态画面且在第一预设时间内无操作指令,则确定显示面板的应用模式为第一模式。
显示面板的息屏(Always On Display,AOD)为显示面板长时间显示比较单一的画面的模式,此时显示面板的刷新频率要求比较低。另外,在显示面板显示静态画面时,且第一预设时间内用户无操作指令,则显示面板的显示画面不变,且在第一预设时间后进入显示面板的息屏,此时对显示面板的刷新频率要求同样比较低,此时可以将显示面板息屏,和显示面板显示静态画面且第一预设时间内无操作指令的应用模式划分为一个模式,即为第一模式。第一模式的刷新频率比较低,例如为30Hz。另外,第一预设时间可以根据需要预先设置,例如可以为几秒。
若操作指令为静态画面操作指令,或若操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率,或操作指令为播放小于或等于第三预设时间的动态画面的播放指令,则确定显示面板的应用模式为第二模式。
静态画面操作指令可以为对静态画面进行操作的指令。显示面板的操作指令可以为应用程序的打开、网页浏览等操作,当操作指令为静态画面操作指令 时,对显示面板刷新频率的要求比较常规。当操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率时,操作指令可以为第一类游戏的应用指令。其中,第一类游戏的应用指令可以为小游戏的应用,示例性地,小游戏可以为在游戏界面呈现不同的图形,将相同的图形连线进行消除的游戏。其中,第二预设时间可以为根据需要设定的时间段,例如为单位时间。第一预设频率可以根据用户在玩小游戏和其他游戏时在第二预设时间内的操作频率进行设定。
另外,在操作指令为播放小于或等于第三预设时间的动态画面的播放指令时,可以为短视频播放等操作。例如,第三预设时间可以为五分钟,播放小于或等于第三预设时间的动态画面可以为播放五分钟之内的短视频,此时对显示面板刷新频率的要求也比较常规。此时可以将操作指令为静态画面操作指令,或操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率,或操作指令为播放小于或等于第三预设时间的动态画面的播放指令的应用模式划分为一个模式,即为第二模式。第二模式的刷新频率为常规刷新频率,第二模式的刷新频率大于第一模式的刷新频率。例如可以为60Hz和90Hz。
若操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率大于第一预设频率,或操作指令为播放大于第三预设时间的动态画面的播放指令,则确定显示面板的应用模式为第三模式;其中,第一模式的刷新频率小于第二模式的刷新频率,第二模式的刷新频率小于第三模式的刷新频率。
第二预设时间可以为单位时间,动态画面交互指令的频率为在单位时间内的交互指令数量。第一预设频率可以为根据需要设定的交互指令频率值。例如,在应用第二类游戏时,动态画面的交互指令的频率比较大,此时可以根据第一类游戏和第二类游戏的动态画面交互指令的频率差设定第一预设频率。当动态画面交互指令在第二预设时间内的频率大于第一预设频率时,动态画面的交互指令可以为大游戏环境下的操作,其中,大游戏可以为区别于小游戏的其他游 戏。播放大于第三预设时间的动态画面的播放指令可以为长视频播放等操作,例如电影的播放等。两种均需比较高的刷新频率,因此可以将操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率大于第一预设频率,或操作指令为播放大于第三预设时间的动态画面的播放指令的应用模式划分为一个模式,即为第三模式。第三模式的刷新频率大于第二模式的刷新频率,例如可以为120Hz和144Hz。
可选的,第一模式的刷新频率包括第一刷新频率,第二模式和所述第三模式分别包括至少两种不同的刷新频率,其中,同一应用模式下的刷新频率共用gamma数据和Demura数据,同一应用模式下最小刷新频率的扫描驱动信号通过同一应用模式下最大刷新频率的扫描驱动信号插入前廊参数获取。
同一应用模式下的操作指令可以包括多种,不同的操作指令可以根据显示面板的显示需求对应相同的刷新频率,也可以对应不同的刷新频率。例如,第二模式的刷新频率包括第二刷新频率和第三刷新频率,第三模式的刷新频率包括第四刷新频率和第五刷新频率;第一模式的刷新频率要求比较低,因此第一模式的刷新频率可以包括第一刷新频率,例如第一刷新频率可以为30Hz。第二模式的两种操作指令的刷新频率要求相差较大,因此第二模式的刷新频率可以包括第二刷新频率和第三刷新频率,例如第二刷新频率可以为60Hz,第三刷新频率可以为90Hz。同理,第三模式的两种操作指令的刷新频率要求相差较大,因此第三模式的刷新频率可以包括第三模式的刷新频率包括第四刷新频率和第五刷新频率,例如第四刷新频率可以为120Hz,第五刷新频率可以为144Hz。当同一应用模式包括至少两个刷新频率时,至少两个刷新频率共用gamma数据和Demura数据,从而保证显示面板在不同刷新频率下正常显示的基础上减少额外设置的数据,降低了显示面板的生产难度和生产成本,提高了显示面板的供应产出。
另外,同一应用模式中不同刷新频率的扫描驱动信号,最小刷新频率的扫描驱动信号通过同一应用模式下最大刷新频率的扫描驱动信号插入前廊参数获 取,从而保证显示面板在不同刷新频率下正常显示的基础上减少额外设置的数据,降低了显示面板的生产难度和生产成本,提高了显示面板的供应产出。示例性的,第二模式包括第二刷新频率和第三刷新频率,例如第二刷新频率可以为60Hz,第三刷新频率可以为90Hz。当第二模式对应的驱动数据为90Hz对应的驱动数据时,可以通过对90Hz对应的扫描驱动信号插入前廊参数获取60Hz对应的扫描驱动信号,即对前廊参数进行扩展,增加扫描驱动电路的时序长度。60Hz对应的gamma数据和Demura数据可以共用90Hz对应的gamma数据和Demura数据。同理,第三模式包括第四刷新频率和第五刷新频率,例如第四刷新频率可以为120Hz,第五刷新频率可以为144Hz。当第三模式对应的驱动数据为144Hz对应的驱动数据时,可以通过对144Hz对应的扫描驱动信号插入前廊参数获取120Hz对应的扫描驱动信号,即对前廊参数进行扩展,增加扫描驱动电路的时序长度。120Hz对应的gamma数据和Demura数据可以共用144Hz对应的gamma数据和Demura数据。
可选地,当第二模式的刷新频率包括第二刷新频率和第三刷新频率,显示面板的应用模式为第二模式时,显示面板的驱动方法还包括:
若操作指令为静态画面操作指令,则确定第二模式的刷新频率为第二刷新频率;若操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率,或若操作指令为播放小于或等于第三预设时间的动态画面的播放指令,则确定第二模式的刷新频率为第三刷新频率;其中,第二刷新频率小于第三刷新频率。
第二模式的静态画面操作指令所需的刷新频率与动态画面交互指令且动态画面交互指令在第二预设时间内的频率小于第一预设频率所需的刷新频率和播放小于第三预设时间的动态画面的播放指令所需的刷新频率的差距比较大,因此可以使具体的操作指令对应同一模式下的不同刷新频率,可以提高显示面板的显示效果。
可选地,第三模式的刷新频率包括第四刷新频率和第五刷新频率,显示面 板的应用模式为第三模式时,显示面板的驱动方法还包括:
若操作指令为播放大于第三预设时间的动态画面的播放指令,则确定第三模式的刷新频率为第四刷新频率;若操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率大于第一预设频率,则确定第三模式的刷新频率为第五刷新频率;其中,第四刷新频率小于第五刷新频率。
同理,第三模式的动态画面交互指令且动态画面交互指令在第二预设时间内的频率大于第一预设频率所需的刷新频率与播放大于第三预设时间的动态画面的播放指令所需的刷新频率的差距比较大,因此可以使具体的操作指令对应同一模式下的不同刷新频率,可以提高显示面板的显示效果。
在确定显示面板的操作指令后,可以根据操作指令切换显示面板的刷新频率至应用模式对应的一个刷新频率,然后调用对应刷新频率的扫描驱动信号、gamma数据和Demura数据,实现显示面板的刷新频率的自动切换。另外,当显示面板的刷新频率由低频切换为高频,需要切换驱动芯片中的晶振频率,从而实现显示面板的刷新频率切换时相关时序的稳定匹配。例如,当显示面板的刷新频率由90Hz切换为120Hz或144Hz时,显示面板上驱动芯片的晶振频率可以由100MHz同步切换至130MHz,实现120Hz或144Hz相关时序的稳定匹配。
图4为本申请实施例提供的又一种显示面板的驱动方法的流程图,如图4所示,该方法包括S310至S340。
S310、预先设置并存储第一模式的驱动数据、第二模式的驱动数据和第三模式的驱动数据,其中,第一模式的扫描驱动信号通过第二模式的扫描信号的除频获取,第一模块的gamma数据通过第二模式的gamma数据的映射获取,第一模式的Demura数据和第二模式的Demura数据相同。
随着刷新频率的增加,高刷新频率一般基于改变驱动芯片中的晶振频率的改变实现,此时会导致驱动数据的变化比较大。示例性地,第三模式的刷新频率相对于第二模式的刷新频率是基于驱动芯片中的晶振频率的改变实现的。当第二模式的驱动数据和第三模式的驱动数据共用时,会使得显示面板的亮度发 生偏移。通过分别预先设置并存储第二模式的驱动数据和第三模式的驱动数据,可以降低显示面板在第二模式的刷新频率切换为第三模式的刷新频率时的亮度偏移。示例性地,当第二模式的刷新频率包括90Hz,第三模式的刷新频率包括120Hz和144Hz时,图5为120Hz共用90Hz的gamma数据时发光亮度-灰阶曲线图,图6为120Hz共用144Hz的gamma数据时发光亮度-灰阶曲线图。其中,横坐标为灰阶,纵坐标为亮度,曲线1为120Hz共用90Hz的gamma数据时发光亮度-灰阶曲线,曲线2为120Hz共用144Hz的gamma数据时发光亮度-灰阶曲线,gamma2.0为gamma值为2.0的曲线,gamma2.4为gamma值为2.4的曲线。如图5和图6所示,当120Hz共用90Hz的gamma数据时,发光亮度-灰阶曲线偏向于gamma等于2.0时的曲线,此时120Hz的发光亮度-灰阶曲线不符合人眼观看。当120Hz共用144Hz的gamma数据时,发光亮度-灰阶曲线位于gamma等于2.0时的曲线和gamma等于2.4时的曲线之间,此时120Hz的发光亮度-灰阶曲线符合人眼观看。因此,通过预先设置并存储第二模式的驱动数据和第三模式的驱动数据,使得显示面板在第二模式的应用模式下调用第二模式的驱动数据,在第三模式的应用模式下调用第三模式的驱动数据,从而可以避免第三模式的应用模式下发光亮度-灰阶曲线偏移,使得显示面板在第三模式下的发光亮度更符合人眼观看,提高显示面板的体验效果。另外,分别设置第二模式的驱动数据和第三模式的驱动数据,可以保证显示面板在第三模式的应用模式下的显示均一性,同时降低显示面板显示时图案的抖动(flicker)。示例性地,当第二模式的刷新频率包括90Hz,并且90Hz作为常规频率,第三模式的刷新频率包括120Hz。表1为显示面板的刷新频率为90Hz时不同灰阶下显示面板的均一性,表2为显示面板的刷新频率为120Hz时不同灰阶下显示面板的均一性,表3为不同刷新频率下flicker值以及平均值。其中,显示面板的均一性为显示面板中的9个亮度获取点1-9中同一灰阶下最小亮度与最大亮度的比值。由表1和表2可知,显示面板在第二模式的应用模式下不同灰阶的显示均一性与第三模式的应用模式下不同灰阶的显示均一性无明显变化,从而可以保证了 显示面板在高刷新频率下显示面板的显示均一性,从而保证了显示面板在高刷新频率下的显示质量。由表3可知,显示面板的刷新频率由低到高的切换过程中,flicker小幅度的减轻。即通过分别设置第二模式的驱动数据和第三模式的驱动数据,可以降低显示面板在高刷新频率下的flicker,从而提高显示面板在高刷新频率下的显示质量。
表1
90Hz Gray255 Gray128 Gray64 Gray32
1 420.1 97.5 21.7 4.8
2 423.4 97.3 21.68 4.88
3 429.2 97.9 22.15 5.01
4 428.1 94.9 20.75 4.43
5 429.3 94.6 20.8 4.44
6 434.1 96.7 21.08 4.58
7 464.5 97.1 20.8 4.44
8 454.6 96.4 20.66 4.5
9 475.7 97.7 20.64 4.4
均一性 88.31% 96.63% 93.18% 87.82%
表2
Figure PCTCN2021101438-appb-000001
表3
Figure PCTCN2021101438-appb-000002
另外,由于第二模式的刷新频率大于第一模式的刷新频率,在设置第二模式的驱动数据后,可以根据第二模式的驱动数据计算第一模式的驱动数据,然后将第一模式的驱动数据预先存储,以便显示面板在其他应用模式切换至第一模式时,可以直接调用第一模式的驱动数据。示例性地,第一模式的扫描驱动信号可以通过第二模式的扫描驱动信号的除频获取,可以使第二模式的扫描驱动信号通过除频获取第一模式的扫描驱动信号,既可以保证第一模式的扫描驱动信号的准确性,同时可以避免额外计算第一模式的扫描驱动信号,降低显示面板的生产难度和生产成本,提高了显示面板的供应产出。同理,第一模式的gamma数据可以通过第二模式的gamma数据的映射获取。另外,当显示面板的应用模式为第一模式时,显示面板一般为息屏或显示面板显示静态画面且在第一预设时间内无操作指令,用户对显示面板的显示均一性要求不高,因此,第一模式的Demura数据可以共用第二模式的Demura数据,既可以满足用户的需求,又可以避免额外设置第一模式的Demura数据,降低了显示面板的生产难度和生产成本,提高了显示面板的供应产出。
S320、获取显示面板的操作指令。
S330、根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率。
S340、根据显示面板的应用模式切换显示面板的刷新频率至应用模式对应的刷新频率,并调用与应用模式对应的驱动数据。
在显示面板的当前应用模式为第三模式,若侦测新的操作指令所对应的应用模式为第一模式或第二模式之后,还包括:
判断显示面板在第四预设时间内是否侦测到第三模式所对应的操作指令;
若显示面板在第四预设时间内没有侦测到第三模式所对应的操作指令时,则确定显示面板的应用模式为新的操作指令所对应的应用模式;
若显示面板在第四预设时间内侦测到第三模式所对应的操作指令,则确定显示面板的应用模式为第三模式。
显示面板的应用模式为第三模式时,显示面板的刷新频率比较高。当侦测到新的操作指令,且新的操作指令所对应的应用模式为第一模式或第二模式时,此时可以根据在第四预设时间内是否侦测到第三模式所对应的操作指令判断显示面板的应用模式是否变化。如果在第四预设时间内未侦测到第三模式所对应的操作指令,则根据新的操作指令确定显示面板的应用模式,此时显示面板的应用模式可以为第一模式或第二模式;如果在第四预设时间内侦测到第三模式所对应的操作指令,则确定显示面板的应用模式仍然为第三模式,避免了显示面板在新的操作指令下快速切换应用模式,降低了显示面板的应用模式的切换频率,从而可以保证用户使用显示面板的舒适性。其中,第四预设时间可以根据需要设定,例如为10s。示例性地,当显示面板的操作指令为播放大于第三预设时间的动态画面的播放指令,使显示面板的应用模式为第三模式时,如果侦测到新的操作指令,例如为显示面板切出动态画面进入静态画面。此时开始计时,如果在第四预设时间内没有侦测到第三模式所对应的操作指令,例如为显示面板切回动态画面继续播放,则根据新操作指令确定显示面板的应用模式,此时显示面板的应用模式可以为第一模式或第二模式。如果在第四预设时间内侦测到第三模式所对应的操作指令,则确定显示面板的应用模式为第三模式,避免新的操作指令和第三模式所对应的操作指令之间切换速度比较快使得显示面板的应用模式切换频繁的现象,降低了应用模式的切换频率,从而可以保证用户使用显示面板的舒适性。同理,当显示面板的操作指令为动态画面交互指令且动态画面交互指令在第二预设时间内的频率大于第一预设频率,使显示面板的应用模式为第三模式时,如果侦测到新的操作指令,例如为显示面板切出 第三模式,在第四预设时间内没有侦测到第三模式所对应的操作指令,例如为显示面板切回动态画面继续播放,则根据新的操作指令确定显示面板的应用模式。在第四预设时间内侦测到第三模式所对应的操作指令,例如为显示面板切回第三模式时的动态画面,则确定显示面板的应用模式为第三模式,同样可以降低应用模式的切换频率,从而可以保证用户使用显示面板的舒适性。
图7为本申请实施例提供的又一种显示面板的驱动方法的流程图,如图7所示,当第三模式的刷新频率包括第四刷新频率和第五刷新频率,第四刷新频率小于第五刷新频率时,该方法包括S510至S550。
S510、获取显示面板的操作指令。
S520、根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率。
S530、根据第一刷新频率和第三刷新频率计算小于第三刷新频率的所有的刷新频率对应的扫描驱动信号、gamma数据和Demura数据;根据第三刷新频率和第五刷新频率计算第三刷新频率和第五刷新频率之间的所有刷新频率对应的扫描驱动信号、gamma数据和Demura数据。
第三刷新频率可以为显示面板的基础刷新频率,即显示面板初始化的刷新频率。显示面板的其他刷新频率可以在第三刷新频率的基础上进行切换。另外,第一刷新频率可以通过第三刷新频率除频得到,可以保证第一刷新频率的准确性。通过第一刷新频率和第三刷新频率计算小于第三刷新频率的所有的刷新频率对应的扫描驱动信号、gamma数据和Demura数据,从而可以根据操作指令切换任意的低刷新频率,实现更精准的低频率自适应,使得第一模式和第二模式的应用模式更加节能流畅。示例性地,可以根据第一刷新频率和第三刷新频率对应的扫描驱动信号、gamma数据和Demura数据拟合出小于第三刷新频率的刷新频率对应的扫描驱动信号、gamma数据和Demura数据。通过第三刷新频率和第五刷新频率计算第三刷新频率和第五刷新频率之间的所有刷新频率对应的扫 描驱动信号、gamma数据和Demura数据,同样可以根据操作指令切换任意的高刷新频率实现更精准的高频率自适应,使得第三模式的应用模式更加流畅,提高显示面板用户的体验感。示例性地,可以根据第三刷新频率和第五刷新频率对应的扫描驱动信号、gamma数据和Demura数据拟合出第三刷新频率和第五刷新频率之间的所有刷新频率对应的扫描驱动信号、gamma数据和Demura数据。
S540、根据操作指令切换显示面板的刷新频率至应用模式对应的一个刷新频率。
S550、调用刷新频率对应的扫描驱动信号、gamma数据和Demura数据。
本申请实施例还提供一种显示面板的驱动装置。如图8所示,该显示面板的驱动装置包括:
操作指令获取模块10,设置为获取显示面板的操作指令。
应用模式确定模块20,设置为根据操作指令确定显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率。
切换模块30,设置为根据显示面板的应用模式切换显示面板的刷新频率至应用模式对应的刷新频率,并调用与应用模式对应的驱动数据。
本申请实施例的技术方案,在操作指令获取模块获取显示面板的操作指令后,应用模式确定模块根据操作指令确定显示面板的应用模式,切换模块据应用模式自动切换显示面板的刷新频率,使得显示面板的不同应用模式对应不同的刷新频率,从而可以实现显示面板的刷新频率的无缝顺滑切换,避免出现闪屏和色偏等问题,有效地解决了高刷新频率下的卡顿、眩晕和运动模糊感的现象,提升了高刷新频率的体验效果。另外,在切换模块切换显示面板的刷新频率时,调用与应用模式对应的驱动数据,可以保证显示面板在不同刷新频率下的显示质量,减少主板端发送的复杂指令数量,进而节省了主板的用电,延长显示面板的待机时间。
可选地,显示面板的驱动装置还包括:
操作指令判断模块,设置为在显示面板的当前应用模式为第三模式,侦测新的操作指令所对应的应用模式为第一模式或第二模式之后,判断显示面板在第四预设时间内是否侦测到第三模式所对应的操作指令;
应用模式确定模块还设置为若显示面板在第四预设时间内没有侦测到第三模式所对应的操作指令时,则确定显示面板的应用模式为新的操作指令所对应的应用模式;若显示面板在第四预设时间内侦测到第三模式所对应的操作指令,则确定显示面板的应用模式为第三模式。
操作指令判断模块在显示面板的当前应用模式为第三模式,并侦测到新的操作指令所对应的应用模式为第一模式或第二模式后,判断显示面板在第四预设时间内是否侦测到第三模式所对应的操作指令。若显示面板在第四预设时间内没有侦测到第三模式所对应的操作指令时,操作指令判断模块会形成第一信号输出至应用模式确定模块,应用模式确定模块根据第一信号确定显示面板的应用模式为新的操作指令所对应的应用模式。若显示面板在第四预设时间内侦测到第三模式所对应的操作指令时,操作指令判断模块会形成第二信号输出至应用模式确定模块,应用模式确定模块根据第二信号确定显示面板的应用模式为第三模式。通过操作指令判断模块判断显示面板的当前应用模式在第三模式,并侦测到新的操作指令所对应的应用模式为第一模式或第二模式后,在第四预设时间内是否侦测到第三应用模式对应的操作指令,则可以根据操作指令判断模块和应用模式确定模块避免显示面板在新的操作指令下快速切换应用模式,降低了显示面板的应用模式的切换频率,从而可以保证用户使用显示面板的舒适性。

Claims (19)

  1. 一种显示面板的驱动方法,包括:
    获取显示面板的操作指令;
    根据所述操作指令确定所述显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率;
    根据所述显示面板的应用模式切换所述显示面板的刷新频率至所述应用模式对应的刷新频率,并调用与所述应用模式对应的驱动数据。
  2. 根据权利要求1所述的显示面板的驱动方法,在获取显示面板的操作指令之前,还包括:
    设置并存储不同应用模式对应的驱动数据,所述驱动数据包括扫描驱动信号、gamma数据和Demura数据。
  3. 根据权利要求1或2所述的显示面板的驱动方法,其中,根据所述操作指令确定所述显示面板的应用模式,包括:
    响应于所述显示面板息屏,或所述显示面板显示静态画面且在第一预设时间内无操作指令,确定所述显示面板的应用模式为第一模式;
    响应于所述操作指令为静态画面操作指令,或所述操作指令为动态画面交互指令且所述动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率,或所述操作指令为播放小于或等于第三预设时间的动态画面的播放指令,确定所述显示面板的应用模式为第二模式;
    响应于所述操作指令为动态画面交互指令且所述动态画面交互指令在第二预设时间内的频率大于第一预设频率,或所述操作指令为播放大于第三预设时间的动态画面的播放指令,确定所述显示面板的应用模式为第三模式;其中,所述第一模式的刷新频率小于所述第二模式的刷新频率,所述第二模式的刷新频率小于所述第三模式的刷新频率。
  4. 根据权利要求3所述的显示面板的驱动方法,其中,设置并存储不同应用模式对应的驱动数据,包括:
    预先设置并存储所述第一模式的驱动数据、所述第二模式的驱动数据和所 述第三模式的驱动数据。
  5. 根据权利要求4所述的显示面板的驱动方法,其中,所述第一模式的扫描驱动信号通过所述第二模式的扫描驱动信号的除频获取,所述第一模块的gamma数据通过所述第二模式的gamma数据的映射获取,所述第一模式的Demura数据和所述第二模式的Demura数据相同。
  6. 根据权利要求3所述的显示面板的驱动方法,其中,所述第一模式的刷新频率包括第一刷新频率,所述第二模式和所述第三模式分别包括至少两种不同的刷新频率,其中,同一所述应用模式下的刷新频率共用gamma数据和Demura数据;同一所述应用模式下最小刷新频率的扫描驱动信号通过同一所述应用模式下最大刷新频率的扫描驱动信号插入前廊参数获取。
  7. 根据权利要求6所述的显示面板的驱动方法,其中,所述第二模式的刷新频率包括第二刷新频率和第三刷新频率,所述第二刷新频率小于所述第三刷新频率;所述显示面板的应用模式为第二模式时,所述方法还包括:
    响应于所述操作指令为静态画面操作指令,确定所述第二模式的刷新频率为所述第二刷新频率;
    响应于所述操作指令为动态画面交互指令且所述动态画面交互指令在第二预设时间内的频率小于或等于第一预设频率,或所述操作指令为播放小于或等于第三预设时间的动态画面的播放指令,确定所述第二模式的刷新频率为所述第三刷新频率。
  8. 根据权利要求6所述的显示面板的驱动方法,其中,所述第三模式的刷新频率包括第四刷新频率和第五刷新频率,所述第四刷新频率小于所述第五刷新频率;所述显示面板的应用模式为第三模式时,所述方法还包括:
    响应于所述操作指令为播放大于第三预设时间的动态画面的播放指令,确定所述第三模式的刷新频率为所述第四刷新频率;
    响应于所述操作指令为动态画面交互指令且所述动态画面交互指令在第二预设时间内的频率大于第一预设频率,确定所述第三模式的刷新频率为所述第 五刷新频率。
  9. 根据权利要求3所述的显示面板的驱动方法,在所述显示面板的当前应用模式为第三模式的情况下,侦测到新的操作指令所对应的应用模式为第一模式或第二模式之后,所述方法还包括:
    判断所述显示面板在第四预设时间内是否侦测到第三模式所对应的操作指令;
    响应于所述显示面板在所述第四预设时间内没有侦测到第三模式所对应的操作指令,确定所述显示面板的应用模式为新的操作指令所对应的应用模式;
    响应于所述显示面板在所述第四预设时间内侦测到第三模式所对应的操作指令,确定所述显示面板的应用模式为第三模式。
  10. 根据权利要求7所述的显示面板的驱动方法,其中,所述第三模式的刷新频率包括第四刷新频率和第五刷新频率,所述第四刷新频率小于所述第五刷新频率;根据所述显示面板的应用模式切换所述显示面板的刷新频率至所述应用模式对应的刷新频率,并调用与所述应用模式对应的驱动数据,包括:
    根据所述第一刷新频率和所述第三刷新频率计算小于所述第三刷新频率的所有的刷新频率对应的扫描驱动信号、gamma数据和Demura数据;根据所述第三刷新频率和所述第五刷新频率计算所述第三刷新频率和所述第五刷新频率之间的所有刷新频率对应的扫描驱动信号、gamma数据和Demura数据;
    根据所述操作指令切换所述显示面板的刷新频率至所述应用模式对应的一个刷新频率;
    调用所述刷新频率对应的扫描驱动信号、gamma数据和Demura数据。
  11. 根据权利要求1所述的显示面板的驱动方法,在获取显示面板的操作指令之前,还包括:显示面板上电过程,在所述显示面板上电之后,所述显示面板的驱动芯片加载烧录过程中烧录的数据,然后加载初始化代码,使所述显示面板能够正常驱动显示。
  12. 根据权利要求11所述的显示面板的驱动方法,其中,所述显示面板的 驱动芯片包括随机存取存储器RAM,所述RAM设置为存储驱动所述显示面板所需的固定程序和数据。
  13. 根据权利要求12所述的显示面板的驱动方法,其中,所述RAM存储有驱动数据,RAM还存储有设定的所述显示面板的驱动芯片的寄存器值,不同的寄存器值对应所述显示面板不同的应用模式。
  14. 根据权利要求11所述的显示面板的驱动方法,其中,所述驱动数据存储于flash中,所述flash通过串行外设接口SPI与所述显示面板的驱动芯片通信连接。
  15. 根据权利要求6所述的显示面板的驱动方法,其中,第一刷新频率为30Hz。
  16. 根据权利要求7所述的显示面板的驱动方法,其中,第二刷新频率为60Hz,第三刷新频率为90Hz。
  17. 根据权利要求8所述的显示面板的驱动方法,其中,第四刷新频率为120Hz,第五刷新频率为144Hz。
  18. 一种显示面板的驱动装置,包括:
    操作指令获取模块,设置为获取显示面板的操作指令;
    应用模式确定模块,设置为根据所述操作指令确定所述显示面板的应用模式;其中,不同的应用模式对应不同的刷新频率;
    切换模块,设置为根据所述显示面板的应用模式切换所述显示面板的刷新频率至所述应用模式对应的刷新频率,并调用与所述应用模式对应的驱动数据。
  19. 根据权利要求18所述的显示面板的驱动装置,还包括:
    操作指令判断模块,设置为在所述显示面板的当前应用模式为第三模式的情况下,侦测到新的操作指令所对应的应用模式为第一模式或第二模式之后,判断所述显示面板在第四预设时间内是否侦测到第三模式所对应的操作指令;
    所述应用模式确定模块还设置为响应于所述显示面板在所述第四预设时间内没有侦测到第三模式所对应的操作指令时,确定所述显示面板的应用模式为 新的操作指令所对应的应用模式;响应于所述显示面板在所述第四预设时间内侦测到第三模式所对应的操作指令,确定所述显示面板的应用模式为第三模式。
PCT/CN2021/101438 2020-08-10 2021-06-22 显示面板的驱动方法和驱动装置 WO2022033182A1 (zh)

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