WO2023077941A1 - 亮度调节方法、装置以及显示设备 - Google Patents

亮度调节方法、装置以及显示设备 Download PDF

Info

Publication number
WO2023077941A1
WO2023077941A1 PCT/CN2022/116814 CN2022116814W WO2023077941A1 WO 2023077941 A1 WO2023077941 A1 WO 2023077941A1 CN 2022116814 W CN2022116814 W CN 2022116814W WO 2023077941 A1 WO2023077941 A1 WO 2023077941A1
Authority
WO
WIPO (PCT)
Prior art keywords
acc
data
optimized
acc data
picture
Prior art date
Application number
PCT/CN2022/116814
Other languages
English (en)
French (fr)
Inventor
吕莹莹
Original Assignee
深圳Tcl数字技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳Tcl数字技术有限公司 filed Critical 深圳Tcl数字技术有限公司
Publication of WO2023077941A1 publication Critical patent/WO2023077941A1/zh

Links

Images

Classifications

    • 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • 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
    • G09G2320/0626Adjustment of display parameters for control of overall brightness

Definitions

  • the present application relates to the field of display technology, in particular to a brightness adjustment method, device and display device.
  • the existing liquid crystal display adopts VRR (Variable Refresh Rate, variable refresh rate) technology to support multiple refresh rates.
  • the refresh rate refers to the number of times the display screen is refreshed per second.
  • VRR technology refers to setting the refresh rate of the liquid crystal display to be unfixed, and letting the graphics card dominate the screen refresh process. By adjusting the refresh rate of the monitor, the refresh rate of the graphics card and the monitor is guaranteed to be consistent, thereby avoiding screen tearing and The other screens show the occurrence of the problem.
  • a brightness adjustment method comprising:
  • the first optimized ACC data is subjected to brightness compensation processing on the current frame picture, and the optimized current frame picture is output.
  • a brightness adjustment device comprising:
  • An acquisition unit configured to acquire the first ACC data of the previous frame and the second ACC data of the current frame
  • a smoothing processing unit configured to input the first ACC data and the second ACC data into a time smoothing model for processing to obtain the first optimized ACC data
  • the brightness compensation unit is configured to perform brightness compensation processing on the first optimized ACC data on the current frame picture, and output the optimized current frame picture.
  • the display device includes a memory, a processor, and a computer program stored in the memory and operable on the processor.
  • the processor executes the computer program, the following steps are implemented:
  • the first optimized ACC data is subjected to brightness compensation processing on the current frame picture, and the optimized current frame picture is output.
  • the first ACC data of the previous frame and the second ACC data of the current frame are obtained; the first ACC data and the second ACC data are input into the time smoothing model for processing, and the first optimized ACC is obtained.
  • This application adds a time smoothing model to process the ACC compensation of the picture, so that the ACC compensation is smooth when the picture is switched, and realizes ACC compensation for the picture while smoothing the picture scene with sharp changes in high and low frequencies, and improves the delay due to ACC compensation This causes flickering when the frequency changes drastically.
  • FIG. 1 is an application environment diagram of a brightness adjustment method in an embodiment of the present application.
  • FIG. 2 is a schematic flow chart of a first brightness adjustment method in an embodiment of the present application.
  • FIG. 3 is a second schematic flowchart of the brightness adjustment method in the embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a third brightness adjustment method in the embodiment of the present application.
  • FIG. 5 is a schematic flowchart of the first optimized ACC data acquisition step in the embodiment of the present application.
  • FIG. 6 is a structural block diagram of a brightness adjustment device in an embodiment of the present application.
  • FIG. 7 is an internal structural diagram of a display device in an embodiment of the present application.
  • the brightness adjustment method provided in this application can be applied to the application environment shown in FIG. 1 .
  • the display device includes a processor and a memory, and the processor can be used to obtain the first ACC (Accurate Color Capture, precise color adjustment) table of the previous frame and the second ACC data of the current frame; the first ACC data and the second 2.
  • the ACC data is input into the time smoothing model for processing to obtain the first optimized ACC data; the first optimized ACC data is subjected to brightness compensation processing on the current frame picture, and the optimized current frame picture is output.
  • the display device can be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, TVs and conference panels with LCD (Liquid Crystal Display) liquid crystal displays.
  • a brightness adjustment method is provided.
  • the method is applied to the processor in FIG. 1 as an example for illustration, including:
  • Step S210 acquiring the first ACC data of the previous frame and the second ACC data of the current frame.
  • the first ACC data can be obtained by processing the ACC color adjustment technology, and is used to adjust the brightness consistency of the previous frame under different refresh rates.
  • the second ACC data can be obtained by processing the ACC color adjustment technology, and is used to adjust the brightness consistency of the current frame picture under different refresh rates.
  • the ACC color adjustment technology can be used to adjust the grayscale value of each primary color (ie, RGB sub-pixel) of R (Red, red), G (Green, green), and B (Blue, blue).
  • ACC color adjustment technology refers to the precise color adjustment algorithm based on the adjustment of the gray scale level through the ACC logic circuit, such as adjusting the low-level gray scale to a high-level gray scale, and then displaying it in a low-level gray scale through frame rate control, so as to pass Use the change of gray scale level to narrow the deviation of color coordinates and color temperature to achieve precise adjustment of chromaticity and color temperature, so as to realize precise color adjustment algorithm to accurately adjust the brightness under different refresh frequencies.
  • the refresh rate can be obtained through VRR (Variable Refresh Rate, variable refresh rate) technology.
  • VRR technology is to set the refresh rate of the display to be unfixed, and let the graphics card to dominate the screen refresh process.
  • the graphics card sends a refresh rate signal to the monitor through the interface, and the processing chip on the monitor receives the refresh rate signal.
  • Real-time Adjust the refresh rate of the monitor panel to ensure that the refresh rate of the graphics card is consistent with that of the monitor, so as to obtain the refresh rate of each frame.
  • the first ACC data and the second ACC data can be obtained through pre-calculation processing and pre-cached in the memory, and then the processor can obtain the first ACC data of the previous frame by calling the corresponding ACC data of the memory and the second ACC data of the current frame picture.
  • Step S220 inputting the first ACC data and the second ACC data into the time smoothing model for processing to obtain the first optimized ACC data.
  • the time smoothing model can be a function model, and the time smoothing model can be used to remove random fluctuations in the time series to make the series smooth.
  • the time smoothing model can be set according to the actual brightness compensation speed conditions and the brightness flicker conditions of high and low frequency switching.
  • the first optimized ACC data refers to the optimized ACC data corresponding to the current frame picture.
  • the processor may invoke a preset time smoothing model, input the acquired first ACC data and second ACC data into the time smoothing model for processing, and output the first optimized ACC data according to the processing result .
  • Step S230 performing brightness compensation processing on the current frame picture with the first optimized ACC data, and outputting the optimized current frame picture.
  • the way of brightness compensation may be to use the first optimized ACC data to perform brightness GAMMA compensation on the amplitude of the low-frequency gray scale signal.
  • the processor can perform brightness GAMMA compensation processing on the low-frequency grayscale signal amplitude of the first optimized ACC data on the current frame picture, and then obtain the optimized current frame picture, reducing the brightness flicker of the picture. Improved the brightness flicker phenomenon when the frequency changes sharply due to ACC compensation delay.
  • the acquisition of the refresh rate based on VRR is counted by the duration of Vertical Blank (vertical interrupt). Vertical Blank is at the back end of each frame scan.
  • the controller calculates the frequency, the ACC data (that is, the ACC table) must be delayed by at least one frame, resulting in the inability to correctly compensate the brightness of the current frame.
  • the refresh frequency changes sharply, the compensation will lead to more severe brightness flashing.
  • the present application obtains the first ACC data of the previous frame picture and the second ACC data of the current frame picture;
  • the first ACC data and the second ACC data input time smoothing model are processed to obtain the ACC data after the first optimization;
  • the first optimized ACC data performs brightness compensation processing on the current frame picture, and outputs the optimized current frame picture, realizes brightness compensation of the current frame picture, and reduces picture brightness flicker.
  • a brightness adjustment method is provided.
  • the processor in Figure 1 is used as an example for illustration, including:
  • Step S310 acquiring the first ACC data of the previous frame and the second ACC data of the current frame.
  • Step S320 inputting the first ACC data and the second ACC data into the time smoothing model for processing to obtain the first optimized ACC data.
  • Step S330 performing brightness compensation processing on the first optimized ACC data on the current frame picture, and outputting the optimized current frame picture.
  • step S310 the specific content process of the above step S310, step S320 and step S330 can refer to the above content, and will not be repeated here.
  • Step S340 acquiring the first refresh rate of the previous frame and the second refresh rate of the current frame.
  • the first refresh rate can be obtained by processing the previous frame with the VRR technology
  • the second refresh rate can be obtained by processing the current frame with the VRR technology.
  • VRR technology can be but not limited to VESA Adaptive-Sync technology (standard variable refresh rate technology initiated by VESA (Video Electronics Standards Association, referred to as Video Electronics Standards Association)), Radeon FreeSync (variable refresh rate technology developed by AMD) and G-Sync (variable refresh rate technology developed by Nvidia).
  • the first refresh rate and the second refresh rate can be obtained through pre-calculation and pre-cached in the memory, and then the processor can obtain the first refresh rate of the previous frame by calling the corresponding refresh rate of the memory and the second refresh rate of the current frame.
  • step S350 a frequency hopping difference is determined according to the first refresh frequency and the second refresh frequency.
  • the frequency hopping difference refers to the refresh frequency difference between two adjacent frames.
  • the first refresh rate is the refresh rate of the previous frame
  • the second refresh rate is the refresh rate of the next frame.
  • the processor obtains the first refresh frequency and the second refresh frequency, and performs difference processing on the first refresh frequency and the second refresh frequency, so as to obtain a corresponding frequency hopping difference.
  • Step S360 when the frequency hopping difference is greater than the frequency threshold, perform brightness compensation processing on the first optimized ACC data for the next frame of picture, and output the optimized next frame of picture.
  • the way of brightness compensation may be to use the first optimized ACC data to perform brightness GAMMA compensation on the amplitude of the low-frequency gray scale signal.
  • the processor can compare the obtained frequency hopping difference with a preset frequency threshold, and according to the comparison result, when the frequency hopping difference is greater than the frequency threshold, the first optimized ACC data pair A frame of picture performs brightness GAMMA compensation processing on the low-frequency grayscale signal amplitude, and then the optimized next frame of picture can be obtained, which reduces the brightness flicker that the picture refresh frequency changes sharply back and forth, and improves the frequency high and low changes caused by ACC compensation delay Brightness flicker phenomenon when severe.
  • ACC hysteresis protection is performed for scenes with large frequency changes.
  • the protection When the frequency hopping difference is detected to be greater than the preset frequency threshold, the protection will be entered to maintain ACC unchanged, and the first optimized ACC data will be The next frame is processed for brightness compensation, and the optimized next frame is output, thereby avoiding brightness flicker caused by frequent jumping of ACC compensation.
  • the ACC compensation is smoothed when the picture is switched, and the ACC compensation is performed on the picture while smoothing the picture scene with a sharp change in high and low frequencies, improving the factor ACC compensation delay causes the flickering phenomenon when the frequency changes sharply.
  • ACC hysteresis protection is implemented for the scene with large frequency jump (that is, the scene where the refresh frequency changes sharply back and forth). , so as to avoid the brightness flicker caused by frequent jump cuts of ACC compensation.
  • Step S410 acquiring the first ACC data of the previous frame and the second ACC data of the current frame.
  • Step S420 input the first ACC data and the second ACC data into the time smoothing model for processing, and obtain the first optimized ACC data.
  • Step S430 performing brightness compensation processing on the first optimized ACC data on the current frame picture, and outputting the optimized current frame picture.
  • Step S440 acquiring the first refresh rate of the previous frame and the second refresh rate of the current frame.
  • step S450 a frequency hopping difference is determined according to the first refresh frequency and the second refresh frequency.
  • Step S460 when the frequency hopping difference is greater than the frequency threshold, perform brightness compensation processing on the next frame of picture with the first optimized ACC data, and output the optimized next frame of picture.
  • Step S470 when the frequency hopping difference is less than or equal to the frequency threshold, acquire the third ACC data of the next frame.
  • the third ACC data can be obtained by processing the ACC color adjustment technology, and used to adjust the brightness consistency of the next frame of pictures under different refresh rates.
  • the third ACC data can be obtained through pre-computation and pre-cached in the memory, and then the processor can obtain the third ACC data of the next frame by calling the corresponding ACC data in the memory.
  • the processor may compare the obtained frequency hopping difference with a preset frequency threshold, and according to the comparison result, when the frequency hopping difference is less than or equal to the frequency threshold, obtain the corresponding The third ACC data of the next frame.
  • Step S480 inputting the second ACC data and the third ACC data into the time smoothing model for processing to obtain the second optimized ACC data.
  • the second optimized ACC data refers to the optimized ACC data corresponding to the next frame.
  • the processor may invoke a preset time smoothing model, input the acquired second ACC data and third ACC data into the time smoothing model for processing, and output the second optimized ACC data according to the processing result .
  • Step S490 performing brightness compensation processing on the second optimized ACC data for the next frame of picture, and outputting the next optimized frame of picture.
  • the processor can perform brightness GAMMA compensation processing on the low-frequency gray scale signal amplitude of the second optimized ACC data for the next frame of picture, and then obtain the optimized next frame of picture, which reduces the brightness of the sharp change of the picture refresh rate.
  • Flicker which improves the phenomenon of brightness flicker when the frequency changes sharply due to ACC compensation delay.
  • the protection When the frequency hopping difference is detected to be greater than the preset frequency threshold, the protection will be entered to maintain ACC unchanged, and the first optimized ACC data will be Perform brightness compensation processing on the next frame, and output the optimized next frame; when the statistics show that the frequency jump difference is less than or equal to the frequency threshold, the ACC hysteresis protection will be exited, and the second optimized ACC data obtained from the processing will be processed for the next
  • the brightness compensation process is performed on the frame image, and the optimized next frame image is output, thereby avoiding the brightness flicker caused by frequent jumps and cuts of ACC compensation, and further improving the flicker phenomenon when the frequency changes sharply due to ACC compensation delay.
  • the third ACC data of the next frame is acquired, including:
  • the frequency hopping difference value of the preset number of frames is sequentially determined.
  • the preset frame number refers to a continuous frame number.
  • the preset frame rate can be obtained through system presets. For example, the preset number of frames can be set to 5, then the processor will sequentially obtain the refresh frequency of 5 consecutive frames, and calculate the frequency jump difference between two adjacent frames in turn, and then obtain the frequency jump difference of the preset frame number .
  • the third ACC data of the next frame is acquired.
  • the processor can compare the obtained frequency hopping difference with the preset frequency threshold, and according to the comparison result, when each frequency hopping difference is less than or equal to the frequency threshold, obtain the corresponding next The third ACC data of one frame, and then the processor can input the time smoothing model for processing according to the third ACC data and the second ACC data, to obtain the second optimized ACC data.
  • the processor can perform brightness GAMMA compensation processing on the low-frequency gray scale signal amplitude of the second optimized ACC data on the next frame, and then obtain the optimized next frame, that is, when the statistics of each frequency jump difference
  • the ACC hysteresis protection will be exited for the next step of processing, thereby improving the accuracy of ACC compensation hysteresis protection, reducing the brightness flicker caused by the sharp change of the screen refresh frequency, and improving the high and low frequency changes caused by ACC compensation delay Brightness flicker phenomenon when severe.
  • the first ACC data and the second ACC data are input into the time smoothing model for processing to obtain the first optimized ACC data, including:
  • Step S510 acquiring the first time smoothing factor corresponding to the previous frame picture and the second time smoothing factor corresponding to the current frame picture.
  • the larger the first time smoothing factor the greater the correlation with the first ACC data corresponding to the previous frame picture; the larger the second time smoothing factor, the greater the correlation with the second ACC data corresponding to the current frame picture .
  • the first time smoothing factor and the second time smoothing factor can be obtained through pre-calculation and pre-cached in the memory, and then the processor can obtain the first time smoothing factor and the first time smoothing factor of the previous frame by calling the corresponding time smoothing factor of the memory.
  • the second temporal smoothing factor of the current frame can be obtained through pre-calculation and pre-cached in the memory, and then the processor can obtain the first time smoothing factor and the first time smoothing factor of the previous frame by calling the corresponding time smoothing factor of the memory.
  • the second temporal smoothing factor of the current frame can be obtained through pre-calculation and pre-cached in the memory, and then the processor can obtain the first time smoothing factor and the first time smoothing factor of the previous frame by calling the corresponding time smoothing factor of the memory.
  • step S520 the first ACC data is multiplied by the first time smoothing factor to obtain first intermediate data.
  • the processor may perform multiplication processing on the acquired first ACC data and the first time smoothing factor, so as to obtain the first intermediate data.
  • step S530 the second ACC data is multiplied by the second time smoothing factor to obtain second intermediate data.
  • the processor may multiply the acquired second ACC data by the second time smoothing factor to obtain second intermediate data.
  • Step S540 add the first intermediate data and the second intermediate data to obtain the first optimized ACC data.
  • the processor adds the processed first intermediate data and the second intermediate data to obtain the first optimized ACC data corresponding to the current frame.
  • temporal smoothing model is:
  • ACC is the ACC data after the first optimization
  • ACC prv is the first ACC data of the previous frame picture
  • ACC cur is the second ACC data of the current frame picture
  • tf is the first time smoothing factor
  • (1-tf) is Second time smoothing factor. It should be noted that tf is greater than 0 and less than 1.
  • obtaining the first time smoothing factor corresponding to the previous frame picture and the second time smoothing factor corresponding to the current frame picture includes:
  • the preset brightness compensation error value and brightness flicker precision value determine the first time smoothing factor corresponding to the previous frame; according to the first time smoothing factor, determine the second time smoothing factor corresponding to the current frame.
  • the sum of the first time smoothing factor and the second time smoothing factor is 1, and the first time smoothing factor is greater than 0 and less than 1.
  • the preset brightness compensation error value can be determined according to the actual brightness compensation speed requirement.
  • the preset brightness flicker accuracy value can be determined according to the performance of flicker switching between high and low refresh rates.
  • the ACC compensation of the previous frame picture is associated, and the time smoothing model is added for processing, that is, by multiplying the first ACC data corresponding to the previous frame picture and the first time smoothing factor Processing to obtain the first intermediate data; multiplying the second ACC data corresponding to the current frame picture and the second time smoothing factor to obtain the second intermediate data, and then obtaining the second intermediate data by adding the first intermediate data to the second intermediate data
  • the first optimized ACC data after time smoothing processing makes the ACC compensation smooth when the screen is switched, realizes ACC compensation for the screen and smooths the screen scene with sharp changes in high and low frequencies at the same time, and improves the drastic changes in frequency due to ACC compensation delay flicker phenomenon.
  • steps in the flow charts of FIGS. 2-5 are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-5 may include a plurality of sub-steps or stages, these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, these sub-steps or stages The order of execution is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.
  • a brightness adjustment device including:
  • the acquiring unit 610 is configured to acquire the first ACC data of the previous frame picture and the second ACC data of the current frame picture.
  • the smoothing processing unit 620 is configured to input the first ACC data and the second ACC data into the time smoothing model for processing to obtain the first optimized ACC data.
  • the brightness compensation unit 630 is configured to perform brightness compensation processing on the first optimized ACC data on the current frame picture, and output the optimized current frame picture.
  • the brightness adjustment device is also used to obtain the first refresh rate of the previous frame and the second refresh rate of the current frame; determine the frequency jump difference according to the first refresh rate and the second refresh rate ; When the frequency hopping difference is greater than the frequency threshold, perform brightness compensation processing on the next frame of picture with the first optimized ACC data, and output the optimized next frame of picture.
  • the brightness adjustment device is also used to obtain the third ACC data of the next frame when the frequency hopping difference is less than or equal to the frequency threshold; input the second ACC data and the third ACC data into the time smoothing The model is processed to obtain the second optimized ACC data; the second optimized ACC data is subjected to brightness compensation processing on the next frame, and the optimized next frame is output.
  • the brightness adjustment device is also used to sequentially determine the frequency hopping difference of the preset number of frames; when each frequency hopping difference is less than or equal to the frequency threshold, obtain the third ACC of the next frame data.
  • the smoothing processing unit 620 is further configured to obtain a first time smoothing factor corresponding to the previous frame picture and a second time smoothing factor corresponding to the current frame picture; compare the first ACC data with the first time smoothing factor Multiply processing to obtain the first intermediate data; multiply the second ACC data and the second time smoothing factor to obtain the second intermediate data; add the first intermediate data and the second intermediate data to obtain the first optimized ACC data.
  • the smoothing processing unit 620 is further configured to determine the first time smoothing factor corresponding to the previous frame according to the preset brightness compensation error value and the brightness flicker accuracy value; according to the first time smoothing factor, determine the corresponding The second temporal smoothing factor of the current frame.
  • Each module in the above-mentioned brightness adjusting device may be fully or partially realized by software, hardware or a combination thereof.
  • the above-mentioned modules can be embedded in or independent of the processor in the display device in the form of hardware, and can also be stored in the memory of the display device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.
  • a display device which can be but not limited to various personal computers, notebook computers, smart phones, tablet computers, televisions and conference panels with LCD liquid crystal display screens.
  • the internal structure diagram of the display device may be shown in FIG. 7 .
  • the display device includes a processor, a memory and a display screen connected through a system bus; the display device may also include a network interface and an input device.
  • the processor of the display device is used to provide calculation and control capabilities.
  • the memory of the display device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and computer programs.
  • the internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
  • the network interface of the display device is used to communicate with an external terminal through a network connection.
  • a brightness adjustment method is realized.
  • the display screen of the display device may be a liquid crystal display screen
  • the input device of the display device may be a touch layer covered on the display screen, or a button, a trackball or a touch pad provided on the display device shell, or an external keyboard, trackpad or mouse etc.
  • FIG. 7 is only a block diagram of a partial structure related to the solution of this application, and does not constitute a limitation on the display device to which the solution of this application is applied.
  • the specific display device can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.
  • a display device in one embodiment, includes a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the following steps are implemented:
  • the ACC data performs brightness compensation processing on the current frame picture, and outputs the optimized current frame picture.
  • the first optimized ACC data performs brightness compensation processing on the next frame of picture, and outputs the optimized next frame of picture.
  • the third ACC data of the next frame is obtained; the second ACC data and the third ACC data are input into the time smoothing model for processing, and the second optimized ACC data is obtained; The second optimized ACC data performs brightness compensation processing on the next frame of picture, and outputs the optimized next frame of picture.
  • the frequency hopping difference values of the preset number of frames are sequentially determined; when each frequency hopping difference value is less than or equal to the frequency threshold, the third ACC data of the next frame is acquired.
  • the preset brightness compensation error value and brightness flicker precision value determine the first time smoothing factor corresponding to the previous frame; according to the first time smoothing factor, determine the second time smoothing factor corresponding to the current frame.
  • a computer-readable storage medium is provided.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the following steps are implemented:
  • the ACC data performs brightness compensation processing on the current frame picture, and outputs the optimized current frame picture.
  • the first optimized ACC data performs brightness compensation processing on the next frame of picture, and outputs the optimized next frame of picture.
  • the third ACC data of the next frame is obtained; the second ACC data and the third ACC data are input into the time smoothing model for processing, and the second optimized ACC data is obtained; The second optimized ACC data performs brightness compensation processing on the next frame of picture, and outputs the optimized next frame of picture.
  • the frequency hopping difference values of the preset number of frames are sequentially determined; when each frequency hopping difference value is less than or equal to the frequency threshold, the third ACC data of the next frame is acquired.
  • the preset brightness compensation error value and brightness flicker precision value determine the first time smoothing factor corresponding to the previous frame; according to the first time smoothing factor, determine the second time smoothing factor corresponding to the current frame.
  • Nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory can include random access memory (RAM) or external cache memory.
  • RAM is available in many forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Chain Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • DDRSDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced SDRAM
  • SLDRAM Synchronous Chain Synchlink DRAM
  • Rambus direct RAM
  • DRAM direct memory bus dynamic RAM
  • RDRAM memory bus dynamic RAM

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)

Abstract

提供了一种亮度调节方法、装置以及显示设备。该方法包括:获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据(S210);将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据(S220);将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面(S230),对当前帧画面的亮度补偿,降低画面亮度闪烁度。

Description

亮度调节方法、装置以及显示设备 技术领域
本申请涉及显示技术领域,特别是涉及一种亮度调节方法、装置以及显示设备。
背景技术
随着显示技术的发展,现有的液晶显示器(LCD)采用VRR(Variable Refresh Rate,可变刷新率)技术支持多种刷新频率,刷新频率指的是显示器屏幕在每秒中画面被刷新的次数。VRR技术指的是将液晶显示器刷新频率设为不固定,并且让显卡来主导画面的刷新过程,通过调节显示器的刷新频率,来保证显卡与显示器的刷新频率一致,从而尽可能避免画面撕裂以及其他画面显示问题的发生。
技术问题
现有技术中,由于LCD的液晶特性,VRR模式下的blank时间长,blank区间一直处于漏电状态,像素电极的电压较低,液晶偏转角度偏小且亮度偏低,导致高低频率切换时画面亮度出现闪烁。
技术解决方案
基于此,有必要针对上述传统液晶显示器中高低频率切换时画面亮度出现闪烁的问题,提供一种能够优化显示画面亮度闪烁的亮度调节方法、装置以及显示设备。
一种亮度调节方法,包括:
获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;
将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
一种亮度调节装置,包括:
获取单元,用于获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
平滑处理单元,用于将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;
亮度补偿单元,用于将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
一种显示设备,显示设备包括存储器,处理器,以及存储于存储器中并可在处理器上运行的计算机程序,处理器执行计算机程序时实现以下步骤:
获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;
将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
有益效果
上述的亮度调节方法中,获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面,实现对当前帧画面的亮度补偿,降低画面亮度闪烁度。本申请通过在对画面ACC补偿时,加入时间平滑模型进行处理,使得ACC补偿在画面切换时平滑,实现对画面进行ACC补偿的同时对高低频剧烈变化的画面场景进行平滑,改善因ACC补偿延迟导致频率高低变化剧烈时的闪烁现象。
附图说明
图1为本申请实施例中亮度调节方法的应用环境图。
图2为本申请实施例中亮度调节方法的第一流程示意图。
图3为本申请实施例中亮度调节方法的第二流程示意图。
图4为本申请实施例中亮度调节方法的第三流程示意图。
图5为本申请实施例中第一优化后ACC数据获取步骤的流程示意图。
图6为本申请实施例中亮度调节装置的结构框图。
图7为本申请实施例中显示设备的内部结构图。
本发明的实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
本申请提供的亮度调节方法,可以应用于如图1所示的应用环境中。其中,显示设备包括处理器和存储器,处理器可用来获取前一帧画面的第一ACC(Accurate Color Capture,精准颜色调节)表和当前帧画面的第二ACC数据;将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。显示设备可以但不限于是具有LCD(Liquid Crystal Display)液晶显示屏的各种个人计算机、笔记本电脑、智能手机、平板电脑、电视和会议平板。
在一个实施例中,如图2所示,提供了一种亮度调节方法,以该方法应用于图1中的处理器为例进行说明,包括:
步骤S210,获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据。
其中,第一ACC数据可通过ACC颜色调节技术处理得到的,用来调节前一帧画面在不同刷新频率下的亮度一致性。第二ACC数据可通过ACC颜色调节技术处理得到的,用来调节当前帧画面在不同刷新频率下的亮度一致性。ACC颜色调节技术可用来调节R(Red, 红)、G(Green,绿)、B(Blue,蓝)各基色(即RGB子像素)灰阶值。ACC颜色调节技术指的是的基于精准颜色调节算法,通过ACC逻辑电路调节灰阶等级,例如将低等级灰阶调节为高等级灰阶,再通过帧频控制以低等级灰阶显示,从而通过利用灰阶等级的变化缩小色坐标和色温的偏差,以实现精准调节色度和色温,从而实现精准颜色调节算法精准调节不同刷新频率下的亮度。示例性的,刷新频率可通过VRR(Variable Refresh Rate,可变刷新率)技术处理得到。VRR技术是是通过将显示器刷新频率设为不固定,并且让显卡来主导画面的刷新过程,如由显卡通过接口向显示器发出刷新频率信号,显示器上的处理芯片接收到刷新频率信号后,会实时的调节显示器面板的刷新频率,保证显卡与显示器的刷新频率一致,从而得到各帧数画面的刷新频率。
在一个示例中,第一ACC数据和第二ACC数据可通过预先计算处理得到,并预先缓存在存储器,进而处理器可通过调用存储器相应的ACC数据,获取得到前一帧画面的第一ACC数据和当前帧画面的第二ACC数据。
步骤S220,将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据。
其中,时间平滑模型可以是函数模型,时间平滑模型可用来将时间系列中的随机波动剔除掉,使得系列变得平滑。时间平滑模型可根据实际亮度补偿速度条件及高低频切换亮度闪烁条件而设定。第一优化后ACC数据指的是对应当前帧画面的优化后ACC数据。
示例性的,处理器可调用预先设定好的时间平滑模型,并将获取到的第一ACC数据和第二ACC数据输入时间平滑模型进行处理,根据处理的结果,输出第一优化后ACC数据。
步骤S230,将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
其中,亮度补偿的方式可以是采用第一优化后ACC数据在低频的灰阶信号幅度上做亮度GAMMA补偿。
处理器可将第一优化后ACC数据对当前帧画面在低频的灰阶信号幅度上做亮度GAMMA补偿处理,进而可得到优化后的当前帧画面,降低了画面的亮度闪烁。改善了因ACC补偿延迟导致频率高低变化剧烈时的亮度闪烁现象。
需要说明的是,传统的对画面ACC补偿中,基于VRR的刷新频率的获取是通过Vertical Blank(垂直中断)的时长来统计的,Vertical Blank是在每帧扫描的后端,这样等TCON(时序控制器)计算完频率下ACC数据(即ACC table)至少都要延迟一帧,导致不能正确的对当前帧画面进行亮度补偿,反而在刷新频率高低变化剧烈的时候补偿,会导致更剧烈的亮度闪烁。
而本申请通过获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面,实现对当前帧画面的亮度补偿,降低画面亮度闪烁度。通过在对画面ACC补偿时,加入时间平滑模型进行处理,使得ACC补偿在画面切换时平滑,实现对画面进行ACC补偿的同时对高低频剧烈变化的画面场景进行平滑,改善因ACC补偿延迟导致频率高低变化剧烈时的闪烁现象。
为了进一步的降低液晶显示器中高低频率切换时画面亮度出现闪烁,避免刷新频率来回剧烈变化带来的亮度闪烁,在一个示例中,如图3所示,提供了一种亮度调节方法,以该方法应用于图1中的处理器为例进行说明,包括:
步骤S310,获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据。
步骤S320,将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据。
步骤S330,将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
其中,上述步骤S310、步骤S320和步骤S330的具体内容过程可参考上文内容,此处不再赘述。
步骤S340,获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率。
其中,第一刷新频率可通过VRR技术处理前一帧画面得到,第二刷新频率可通过VRR技术处理当前帧画面得到。VRR技术可以但不限于是VESA Adaptive-Sync技术(由VESA(Video Electronics Standards Association,简称视频电子标准协会)发起的标准可变刷新率技术),Radeon FreeSync(由AMD开发的可变刷新率技术)和G-Sync(由Nvidia开发的可变刷新率技术)。
在一个示例中,第一刷新频率和第二刷新频率可通过预先计算处理得到,并预先缓存在存储器,进而处理器可通过调用存储器相应的刷新频率,获取得到前一帧画面的第一刷新频率和当前帧画面的第二刷新频率。
步骤S350,根据第一刷新频率和第二刷新频率,确定频率跳变差值。
其中,频率跳变差值指的是相邻两帧的刷新频率差值。第一刷新频率为前一帧画面的刷新频率,第二刷新频率为后一帧画面的刷新频率。
处理器获取到第一刷新频率和第二刷新频率,将将第一刷新频率和第二刷新频率进行差值处理,进而可得到相应的频率跳变差值。
步骤S360,在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
其中,亮度补偿的方式可以是采用第一优化后ACC数据在低频的灰阶信号幅度上做亮度GAMMA补偿。
处理器可将获取到的频率跳变差值与预设的频率阈值进行比对处理,并根据比对的结果,在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面在低频的灰阶信号幅度上做亮度GAMMA补偿处理,进而可得到优化后的下一帧画面,降低了画面 刷新频率来回剧烈变化的亮度闪烁,改善了因ACC补偿延迟导致频率高低变化剧烈时的亮度闪烁现象。通过设置频率跳变阈值保护,对于频率变化大的场景进行ACC迟滞保护,当监测到频率跳变差值大于预设的频率阈值时,进入保护维持ACC不变,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面,进而避免ACC补偿频繁跳切带来的亮度闪烁。
上述实施例中,通过在对画面ACC补偿时,加入时间平滑模型进行处理,使得ACC补偿在画面切换时平滑,实现对画面进行ACC补偿的同时对高低频剧烈变化的画面场景进行平滑,改善因ACC补偿延迟导致频率高低变化剧烈时的闪烁现象,同时通过设置对应刷新频率跳变差值的频率阈值保护,对于频率跳变大的场景(即对刷新频率来回剧烈变化的场景)进行ACC迟滞保护,从而避免ACC补偿频繁跳切带来的亮度闪烁。
为了进一步的优化频率变化大的场景进行ACC迟滞保护,避免刷新频率来回剧烈变化带来的亮度闪烁,在一个示例中,如图4所示,提供了一种亮度调节方法,以该方法应用于图1中的处理器为例进行说明,包括:
步骤S410,获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据。
步骤S420,将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据。
步骤S430,将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
步骤S440,获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率。
步骤S450,根据第一刷新频率和第二刷新频率,确定频率跳变差值。
步骤S460,在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
步骤S470,在频率跳变差值小于或等于频率阈值时,获取下一帧画面的第三ACC数据。
其中,第三ACC数据可通过ACC颜色调节技术处理得到的,用来调节下一帧画面在不同刷新频率下的亮度一致性。第三ACC数据可通过预先计算处理得到,并预先缓存在存储器,进而处理器可通过调用存储器相应的ACC数据,获取得到下一帧画面的第三ACC数据。
示例性的,处理器可将获取到的频率跳变差值与预设的频率阈值进行比对处理,并根据比对的结果,在频率跳变差值小于或等于频率阈值时,获取得到对应下一帧画面的第三ACC数据。
步骤S480,将第二ACC数据和第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据。
其中,第二优化后ACC数据指的是对应下一帧画面的优化后ACC数据。
示例性的,处理器可调用预先设定好的时间平滑模型,并将获取到的第二ACC数据和第三ACC数据输入时间平滑模型进行处理,根据处理的结果,输出第二优化后ACC数据。
步骤S490,将第二优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
处理器可将第二优化后ACC数据对下一帧画面在低频的灰阶信号幅度上做亮度GAMMA补偿处理,进而可得到优化后的下一帧画面,降低了画面刷新频率来回剧烈变化的亮度闪烁,改善了因ACC补偿延迟导致频率高低变化剧烈时的亮度闪烁现象。通过设置频率跳变阈值保护,对于频率变化大的场景进行ACC迟滞保护,当监测到频率跳变差值大于预设的频率阈值时,进入保护维持ACC不变,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面;当统计到频率跳变差值小于或等于频率阈值时退出ACC迟滞保护,将处理得到的第二优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面,进而避免ACC补偿频繁跳切带来的亮度闪烁,进一步的改善因ACC补偿延迟导致频率高 低变化剧烈时的闪烁现象。
为了进一步的提高ACC补偿迟滞保护的精准性,在一个示例中,在频率跳变差值小于或等于频率阈值时,获取下一帧画面的第三ACC数据,包括:
依次确定预设帧数的频率跳变差值。
其中,预设帧数指的是连续的帧数。预设帧数可通过系统预设得到。例如预设帧数可设置为5,则处理器依次获取连续5帧的刷新频率,并依次计算相邻2帧之间的频率跳变差值,进而得到预设帧数的频率跳变差值。
在各频率跳变差值均小于或等于频率阈值时,获取下一帧画面的第三ACC数据。
处理器可将获取到的各频率跳变差值与预设的频率阈值进行比对处理,并根据比对的结果,在各个频率跳变差值均小于或等于频率阈值时,获取得到对应下一帧画面的第三ACC数据,进而处理器可根据第三ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据。从而处理器可将第二优化后ACC数据对下一帧画面在低频的灰阶信号幅度上做亮度GAMMA补偿处理,进而可得到优化后的下一帧画面,即当统计到各个频率跳变差值均小于或等于频率阈值时才退出ACC迟滞保护进行下一步处理,进而提高ACC补偿迟滞保护的精准性,降低了画面刷新频率来回剧烈变化的亮度闪烁,改善了因ACC补偿延迟导致频率高低变化剧烈时的亮度闪烁现象。
在一个示例中,如图5所示,将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据,包括:
步骤S510,获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子。
其中,第一时间平滑因子越大,与对应前一帧画面的第一ACC数据的关联性越大;第二时间平滑因子越大,与对应当前帧画面的第二ACC数据的关联性越大。
第一时间平滑因子和第二时间平滑因子可通过预先计算处理得到,并预先缓存在存储器,进而处理器可通过调用存储器相应的时间平滑因子,获取得到前一帧画面的第一时间平滑因子和当前帧画面的第二时间平滑因子。
步骤S520,将第一ACC数据与第一时间平滑因子相乘处理,得到第一中间数据。
处理器可将获取到的第一ACC数据和第一时间平滑因子进行相乘处理,进而得到第一中间数据。
步骤S530,将第二ACC数据与第二时间平滑因子相乘处理,得到第二中间数据。
处理器可将获取到的第二ACC数据与第二时间平滑因子相乘处理,得到第二中间数据。
步骤S540,将第一中间数据和第二中间数据相加处理,得到第一优化后ACC数据。
处理器将处理得到的第一中间数据和第二中间数据进行相加处理,进而得到对应当前帧画面的第一优化后的ACC数据。
示例性的,时间平滑模型为:
ACC=tf*ACC prv+(1-tf)*ACC cur
其中,ACC为第一优化后ACC数据,ACC prv为前一帧画面的第一ACC数据,ACC cur为当前帧画面的第二ACC数据,tf为第一时间平滑因子,(1-tf)为第二时间平滑因子。需要说明的是,tf大于0且小于1。
为了提高第一时间平滑因子和第二时间平滑因子的设定精度,在一个示例中,获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子,包括:
根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的第一时间平滑因子;根据第一时间平滑因子,确定对应当前帧画面的第二时间平滑因子。
其中,第一时间平滑因子和第二时间平滑因子之和为1,第一时 间平滑因子大于0且小于1。预设的亮度补充误差值可根据实际亮度补偿速度需求而确定。预设的亮度闪烁精度值可根据高低刷新频率切换闪烁的表现而确定。
上述实施例中,对当前帧画面ACC补偿时,关联前一帧画面的ACC补偿,加入时间平滑模型进行处理,即通过将对应前一帧画面的第一ACC数据和第一时间平滑因子相乘处理,得到第一中间数据;将对应当前帧画面的第二ACC数据和第二时间平滑因子相乘处理,得到第二中间数据,通过将第一中间数据与第二中间数据相加,进而得到时间平滑处理后的第一优化后ACC数据,使得ACC补偿在画面切换时平滑,实现对画面进行ACC补偿的同时对高低频剧烈变化的画面场景进行平滑,改善因ACC补偿延迟导致频率高低变化剧烈时的闪烁现象。
应该理解的是,虽然图2-5的流程图中的各个步骤按照箭头的指示依次显示,但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明,这些步骤的执行并没有严格的顺序限制,这些步骤可以以其它的顺序执行。而且,图2-5中的至少一部分步骤可以包括多个子步骤或者多个阶段,这些子步骤或者阶段并不必然是在同一时刻执行完成,而是可以在不同的时刻执行,这些子步骤或者阶段的执行顺序也不必然是依次进行,而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
在一个实施例中,如图6所示,提供了一种亮度调节装置,包括:
获取单元610,用于获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据。
平滑处理单元620,用于将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据。
亮度补偿单元630,用于将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
在一个实施例中,亮度调节装置,还用于获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;根据第一刷新频率和第二刷 新频率,确定频率跳变差值;在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,亮度调节装置,还用于在频率跳变差值小于或等于频率阈值时,获取下一帧画面的第三ACC数据;将第二ACC数据和第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据;将第二优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,亮度调节装置,还用于依次确定预设帧数的频率跳变差值;在各频率跳变差值均小于或等于频率阈值时,获取下一帧画面的第三ACC数据。
在一个实施例中,平滑处理单元620,还用于获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;将第一ACC数据与第一时间平滑因子相乘处理,得到第一中间数据;将第二ACC数据与第二时间平滑因子相乘处理,得到第二中间数据;将第一中间数据和第二中间数据相加处理,得到第一优化后ACC数据。
在一个实施例中,平滑处理单元620,还用于根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的第一时间平滑因子;根据第一时间平滑因子,确定对应当前帧画面的第二时间平滑因子。
关于亮度调节装置的具体限定可以参见上文中对于亮度调节方法的限定,在此不再赘述。上述亮度调节装置中的各个模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于显示设备中的处理器中,也可以以软件形式存储于显示设备中的存储器中,以便于处理器调用执行以上各个模块对应的操作。
在一个实施例中,提供了一种显示设备,该显示设备可以但不限于是具有LCD液晶显示屏的各种个人计算机、笔记本电脑、智能手机、平板电脑、电视和会议平板。显示设备的内部结构图可以如图7 所示。该显示设备包括通过系统总线连接的处理器、存储器和显示屏;该显示设备还可包括网络接口和输入装置。其中,该显示设备的处理器用于提供计算和控制能力。该显示设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统和计算机程序。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该显示设备的网络接口用于与外部的终端通过网络连接通信。该计算机程序被处理器执行时以实现一种亮度调节方法。该显示设备的显示屏可以是液晶显示屏,该显示设备的输入装置可以是显示屏上覆盖的触摸层,也可以是显示设备外壳上设置的按键、轨迹球或触控板,还可以是外接的键盘、触控板或鼠标等。
本领域技术人员可以理解,图7中示出的结构,仅仅是与本申请方案相关的部分结构的框图,并不构成对本申请方案所应用于其上的显示设备的限定,具体的显示设备可以包括比图中所示更多或更少的部件,或者组合某些部件,或者具有不同的部件布置。
在一个实施例中,提供了一种显示设备,显示设备包括存储器和处理器,以及存储于存储器中并可在处理器上运行的计算机程序,该处理器执行计算机程序时实现以下步骤:
获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
在一个实施例中,处理器执行计算机程序时还实现以下步骤:
获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;根据第一刷新频率和第二刷新频率,确定频率跳变差值;在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,处理器执行计算机程序时还实现以下步骤:
在频率跳变差值小于或等于频率阈值时,获取下一帧画面的第三ACC数据;将第二ACC数据和第三ACC数据输入时间平滑模型进 行处理,得到第二优化后ACC数据;将第二优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,处理器执行计算机程序时还实现以下步骤:
依次确定预设帧数的频率跳变差值;在各频率跳变差值均小于或等于频率阈值时,获取下一帧画面的第三ACC数据。
在一个实施例中,处理器执行计算机程序时还实现以下步骤:
获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;将第一ACC数据与第一时间平滑因子相乘处理,得到第一中间数据;将第二ACC数据与第二时间平滑因子相乘处理,得到第二中间数据;将第一中间数据和第二中间数据相加处理,得到第一优化后ACC数据。
在一个实施例中,处理器执行计算机程序时还实现以下步骤:
根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的第一时间平滑因子;根据第一时间平滑因子,确定对应当前帧画面的第二时间平滑因子。
在一个实施例中,提供了一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,计算机程序被处理器执行时实现以下步骤:
获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;将第一ACC数据和第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;将第一优化后ACC数据对当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
在一个实施例中,计算机程序被处理器执行时还实现以下步骤:
获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;根据第一刷新频率和第二刷新频率,确定频率跳变差值;在频率跳变差值大于频率阈值时,将第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,计算机程序被处理器执行时还实现以下步骤:
在频率跳变差值小于或等于频率阈值时,获取下一帧画面的第三 ACC数据;将第二ACC数据和第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据;将第二优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
在一个实施例中,计算机程序被处理器执行时还实现以下步骤:
依次确定预设帧数的频率跳变差值;在各频率跳变差值均小于或等于频率阈值时,获取下一帧画面的第三ACC数据。
在一个实施例中,计算机程序被处理器执行时还实现以下步骤:
获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;将第一ACC数据与第一时间平滑因子相乘处理,得到第一中间数据;将第二ACC数据与第二时间平滑因子相乘处理,得到第二中间数据;将第一中间数据和第二中间数据相加处理,得到第一优化后ACC数据。
在一个实施例中,计算机程序被处理器执行时还实现以下步骤:
根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的第一时间平滑因子;根据第一时间平滑因子,确定对应当前帧画面的第二时间平滑因子。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的计算机程序可存储于一非易失性计算机可读取存储介质中,该计算机程序在执行时,可包括如上述各方法的实施例的流程。其中,本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用,均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限,RAM以多种形式可得,诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、 直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。
以上实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对申请专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种亮度调节方法,其中,包括:
    获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
    将所述第一ACC数据和所述第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;
    将所述第一优化后ACC数据对所述当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
  2. 根据权利要求1所述的亮度调节方法,其中,所述将所述第一优化后ACC数据对所述当前帧画面进行亮度补偿处理,输出优化后的当前帧画面之后,所述亮度调节方法还包括:
    获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;
    根据所述第一刷新频率和所述第二刷新频率,确定频率跳变差值;
    在所述频率跳变差值大于频率阈值时,将所述第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
  3. 根据权利要求2所述的亮度调节方法,其中,所述根据所述第一刷新频率和所述第二刷新频率,确定频率跳变差值之后,所述亮度调节方法还包括:
    在所述频率跳变差值小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据;
    将所述第二ACC数据和所述第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据;
    将所述第二优化后ACC数据对所述下一帧画面进行亮度补偿处理,输出所述优化后的下一帧画面。
  4. 根据权利要求3所述的亮度调节方法,其中,所述在所述频率跳变差值小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据,包括:
    依次确定预设帧数的频率跳变差值;
    在各所述频率跳变差值均小于或等于所述频率阈值时,获取下一 帧画面的第三ACC数据。
  5. 根据权利要求1所述的亮度调节方法,其中,所述将所述第一ACC数据和所述第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据,包括:
    获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;
    将所述第一ACC数据与所述第一时间平滑因子相乘处理,得到第一中间数据;
    将所述第二ACC数据与所述第二时间平滑因子相乘处理,得到第二中间数据;
    将第一中间数据和第二中间数据相加处理,得到所述第一优化后ACC数据。
  6. 根据权利要求5所述的亮度调节方法,其中,所述时间平滑模型为:
    ACC=tf*ACC prv+(1-tf)*ACC cur
    其中,ACC为所述第一优化后ACC数据,ACC prv为前一帧画面的所述第一ACC数据,ACC cur为当前帧画面的所述第二ACC数据,tf为所述第一时间平滑因子,(1-tf)为所述第二时间平滑因子。
  7. 根据权利要求5所述的亮度调节方法,其中,所述获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子,包括:
    根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的所述第一时间平滑因子;
    根据所述第一时间平滑因子,确定对应当前帧画面的所述第二时间平滑因子。
  8. 一种亮度调节装置,其中,包括:
    获取单元,用于获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
    平滑处理单元,用于将所述第一ACC数据和所述第二ACC数据 输入时间平滑模型进行处理,得到第一优化后ACC数据;
    亮度补偿单元,用于将所述第一优化后ACC数据对所述当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
  9. 根据权利要求8所述的亮度调节装置,其特征在于,所述亮度调节装置,还用于获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;根据所述第一刷新频率和所述第二刷新频率,确定频率跳变差值;在所述频率跳变差值大于频率阈值时,将所述第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
  10. 根据权利要求9所述的亮度调节装置,其特征在于,所述亮度调节装置,还用于在所述频率跳变差值小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据;将所述第二ACC数据和所述第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据;将所述第二优化后ACC数据对所述下一帧画面进行亮度补偿处理,输出所述优化后的下一帧画面。
  11. 根据权利要求10所述的亮度调节装置,其特征在于,所述亮度调节装置,还用于依次确定预设帧数的频率跳变差值;在各所述频率跳变差值均小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据。
  12. 根据权利要求8所述的亮度调节装置,其特征在于,所述平滑处理单元,还用于获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;将所述第一ACC数据与所述第一时间平滑因子相乘处理,得到第一中间数据;将所述第二ACC数据与所述第二时间平滑因子相乘处理,得到第二中间数据;将第一中间数据和第二中间数据相加处理,得到所述第一优化后ACC数据。
  13. 根据权利要求12所述的亮度调节装置,其特征在于,所述平滑处理单元,还用于根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的所述第一时间平滑因子;
    根据所述第一时间平滑因子,确定对应当前帧画面的所述第二时 间平滑因子。
  14. 一种显示设备,其中,所述显示设备包括存储器,处理器,以及存储于所述存储器中并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现以下步骤:
    获取前一帧画面的第一ACC数据和当前帧画面的第二ACC数据;
    将所述第一ACC数据和所述第二ACC数据输入时间平滑模型进行处理,得到第一优化后ACC数据;
    将所述第一优化后ACC数据对所述当前帧画面进行亮度补偿处理,输出优化后的当前帧画面。
  15. 根据权利要求14所述的显示设备,其中,所述处理器执行所述计算机程序时还实现以下步骤:
    获取前一帧画面的第一刷新频率和当前帧画面的第二刷新频率;
    根据所述第一刷新频率和所述第二刷新频率,确定频率跳变差值;
    在所述频率跳变差值大于频率阈值时,将所述第一优化后ACC数据对下一帧画面进行亮度补偿处理,输出优化后的下一帧画面。
  16. 根据权利要求15所述的显示设备,其中,所述处理器执行所述计算机程序时还实现以下步骤:
    在所述频率跳变差值小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据;
    将所述第二ACC数据和所述第三ACC数据输入时间平滑模型进行处理,得到第二优化后ACC数据;
    将所述第二优化后ACC数据对所述下一帧画面进行亮度补偿处理,输出所述优化后的下一帧画面。
  17. 根据权利要求16所述的显示设备,其中,所述处理器执行所述计算机程序时还实现以下步骤:
    依次确定预设帧数的频率跳变差值;
    在各所述频率跳变差值均小于或等于所述频率阈值时,获取下一帧画面的第三ACC数据。
  18. 根据权利要求14所述的显示设备,其中,所述处理器执行 所述计算机程序时还实现以下步骤:
    获取对应前一帧画面的第一时间平滑因子和对应当前帧画面的第二时间平滑因子;
    将所述第一ACC数据与所述第一时间平滑因子相乘处理,得到第一中间数据;
    将所述第二ACC数据与所述第二时间平滑因子相乘处理,得到第二中间数据;
    将第一中间数据和第二中间数据相加处理,得到所述第一优化后ACC数据。
  19. 根据权利要求18所述的显示设备,其中,所述时间平滑模型为:
    ACC=tf*ACC prv+(1-tf)*ACC cur
    其中,ACC为所述第一优化后ACC数据,ACC prv为前一帧画面的所述第一ACC数据,ACC cur为当前帧画面的所述第二ACC数据,tf为所述第一时间平滑因子,(1-tf)为所述第二时间平滑因子。
  20. 根据权利要求18所述的显示设备,其中,所述处理器执行所述计算机程序时还实现以下步骤:
    根据预设的亮度补偿误差值和亮度闪烁精度值,确定对应前一帧画面的所述第一时间平滑因子;
    根据所述第一时间平滑因子,确定对应当前帧画面的所述第二时间平滑因子。
PCT/CN2022/116814 2021-11-05 2022-09-02 亮度调节方法、装置以及显示设备 WO2023077941A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111307642.2A CN114093330B (zh) 2021-11-05 2021-11-05 亮度调节方法、装置、显示设备及计算机可读存储介质
CN202111307642.2 2021-11-05

Publications (1)

Publication Number Publication Date
WO2023077941A1 true WO2023077941A1 (zh) 2023-05-11

Family

ID=80299150

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/116814 WO2023077941A1 (zh) 2021-11-05 2022-09-02 亮度调节方法、装置以及显示设备

Country Status (2)

Country Link
CN (1) CN114093330B (zh)
WO (1) WO2023077941A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114093330B (zh) * 2021-11-05 2023-03-10 深圳Tcl数字技术有限公司 亮度调节方法、装置、显示设备及计算机可读存储介质
WO2024077517A1 (zh) * 2022-10-12 2024-04-18 京东方科技集团股份有限公司 脉宽调节方法、脉宽调节模组和显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080037298A (ko) * 2006-10-25 2008-04-30 삼성전자주식회사 영상의 깜박임을 개선하는 디스플레이 장치 및 방법
CN101894532A (zh) * 2009-05-19 2010-11-24 日立民用电子株式会社 图像显示装置
CN111640390A (zh) * 2020-06-30 2020-09-08 京东方科技集团股份有限公司 显示画面闪烁调节电路及方法、显示装置
CN112767867A (zh) * 2021-01-28 2021-05-07 昆山国显光电有限公司 显示面板及其亮度补偿方法、装置
CN113327535A (zh) * 2021-05-31 2021-08-31 Tcl华星光电技术有限公司 显示面板的显示画面的调节方法及调节系统
CN114093330A (zh) * 2021-11-05 2022-02-25 深圳Tcl数字技术有限公司 亮度调节方法、装置、显示设备及计算机可读存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107610665B (zh) * 2017-09-28 2020-07-28 深圳市华星光电技术有限公司 液晶显示器的驱动方法及装置
CN112542124B (zh) * 2020-12-04 2022-08-05 Tcl华星光电技术有限公司 亮度补偿方法、亮度补偿装置及显示装置
CN112927658B (zh) * 2021-01-26 2022-08-26 昆山龙腾光电股份有限公司 一种显示面板的驱动方法、驱动装置及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080037298A (ko) * 2006-10-25 2008-04-30 삼성전자주식회사 영상의 깜박임을 개선하는 디스플레이 장치 및 방법
CN101894532A (zh) * 2009-05-19 2010-11-24 日立民用电子株式会社 图像显示装置
CN111640390A (zh) * 2020-06-30 2020-09-08 京东方科技集团股份有限公司 显示画面闪烁调节电路及方法、显示装置
CN112767867A (zh) * 2021-01-28 2021-05-07 昆山国显光电有限公司 显示面板及其亮度补偿方法、装置
CN113327535A (zh) * 2021-05-31 2021-08-31 Tcl华星光电技术有限公司 显示面板的显示画面的调节方法及调节系统
CN114093330A (zh) * 2021-11-05 2022-02-25 深圳Tcl数字技术有限公司 亮度调节方法、装置、显示设备及计算机可读存储介质

Also Published As

Publication number Publication date
CN114093330A (zh) 2022-02-25
CN114093330B (zh) 2023-03-10

Similar Documents

Publication Publication Date Title
WO2023077941A1 (zh) 亮度调节方法、装置以及显示设备
WO2020019807A1 (zh) 获取Mura补偿数据的方法、装置、计算机设备及存储介质
US7148868B2 (en) Liquid crystal display
US10140941B2 (en) Method and apparatus for adjusting a screen refresh frequency and display
US20170124934A1 (en) Variable refresh rate gamma correction
US9734748B2 (en) Grayscale value setting method for liquid crystal panel and liquid crystal display
US9743073B2 (en) Image processing device with image compensation function and image processing method thereof
US8390542B2 (en) Apparatus, method, and program for processing image
US10297228B2 (en) Display apparatus and control method thereof
CN112927658B (zh) 一种显示面板的驱动方法、驱动装置及显示装置
WO2018201534A1 (zh) 一种显示面板的mura现象补偿方法及显示面板
US10204577B2 (en) Driving method, driving circuit and display apparatus
US20170039967A1 (en) Devices and methods of adaptive dimming using local tone mapping
RU2653562C1 (ru) Способ установления значения уровня серого жидкокристаллической панели и жидкокристаллический дисплей
KR20190107217A (ko) 이미지-적응 톤 맵핑 방법 및 이를 채용한 표시 장치
US20160247465A1 (en) Image display method and system
WO2023174123A1 (zh) 显示控制芯片、显示面板及相关设备、方法和装置
WO2023035939A1 (zh) 背光调节方法、装置、设备及存储介质
CN113112947B (zh) 显示装置及其驱动方法
KR20140061103A (ko) 디스플레이 장치 및 영상 출력 방법
KR20170015678A (ko) 영상 처리 방법, 영상 처리 방법을 수행하는 영상 처리 장치, 및 영상 처리 장치를 포함하는 표시 장치
CN111477151A (zh) 一种显示装置和应用于显示装置的充电控制方法
TWI610575B (zh) 影像處理裝置及影像處理方法
CN116580680B (zh) 显示面板的驱动方法、亮度补偿装置及显示装置
TWI410123B (zh) 影像顯示模組、影像顯示裝置及其動態影像顯示方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22888972

Country of ref document: EP

Kind code of ref document: A1