WO2022134008A9 - 图像显示方法、装置、电子设备及存储介质 - Google Patents

图像显示方法、装置、电子设备及存储介质 Download PDF

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Publication number
WO2022134008A9
WO2022134008A9 PCT/CN2020/139436 CN2020139436W WO2022134008A9 WO 2022134008 A9 WO2022134008 A9 WO 2022134008A9 CN 2020139436 W CN2020139436 W CN 2020139436W WO 2022134008 A9 WO2022134008 A9 WO 2022134008A9
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Prior art keywords
backlight
image
pixel
sub
frame
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PCT/CN2020/139436
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English (en)
French (fr)
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WO2022134008A1 (zh
Inventor
李治富
苗京花
李文宇
鄢名扬
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京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202080003711.8A priority Critical patent/CN114981878A/zh
Priority to US18/265,646 priority patent/US20240046891A1/en
Priority to PCT/CN2020/139436 priority patent/WO2022134008A1/zh
Publication of WO2022134008A1 publication Critical patent/WO2022134008A1/zh
Publication of WO2022134008A9 publication Critical patent/WO2022134008A9/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to the field of image display, and in particular to an image display method, an image processing device, electronic equipment, and a storage medium.
  • the backlight of the LCD screen on the market is a whole piece of backlight, which needs to be on all the time, causing many problems. Necessary waste; moreover, because the screen is too large, the TV screen picture will be brighter overall, and watching for a long time will cause discomfort to the human body.
  • the present application provides an image display method, an image processing device, electronic equipment, and a storage medium.
  • the image to be displayed in the N+1th frame and the backlight brightness data are synchronously sent to the display screen and the backlight driving board respectively.
  • the image to be displayed in the N+1th frame includes a plurality of image sub-regions, each of the image sub-regions includes a plurality of pixels, the display screen includes a plurality of backlight block units, the The image sub-regions are in one-to-one correspondence with the backlight block units, and the calculation of the backlight brightness data of the display screen according to the pixel data through the backlight algorithm includes:
  • the counting the number of pixels with pixel brightness values greater than 0 in the image sub-region includes:
  • the determining that the backlight block unit corresponding to the image sub-region is turned on includes:
  • the backlight brightness data of the corresponding backlight block unit is determined according to the pixel brightness value of each pixel point in the image sub-region.
  • the determining the backlight brightness data of the corresponding backlight block unit according to the pixel brightness value of each pixel in the image sub-region includes:
  • the backlight block is calculated according to the pixel brightness value of the first preset sequence, the average pixel brightness value, and the interpolation between the pixel brightness value and the average pixel brightness value of the first preset sequence
  • the backlight brightness data for the unit is calculated according to the pixel brightness value of the first preset sequence, the average pixel brightness value, and the interpolation between the pixel brightness value and the average pixel brightness value of the first preset sequence.
  • the backlight driving board includes a plurality
  • the display screen includes a plurality of display sub-areas
  • each of the display sub-areas corresponds to a plurality of the backlight block units
  • each of the display sub-areas there is one said backlight driver board, and said synchronously sending said N+1th frame to be displayed image and said backlight brightness data to said display screen and backlight driver board respectively includes:
  • the image display method further includes: controlling the backlight driving board to scan row by row according to the backlight luminance data to drive a plurality of the backlight block units corresponding to the display sub-regions.
  • the display screen includes a plurality of pixel units, the pixel units correspond to the pixels of the image to be displayed in the N+1th frame, and the image display method includes:
  • An acquisition module configured to acquire the N+1th frame of the image to be displayed and obtain the pixel data of the pixels in the N+1th frame of the image to be displayed when the synchronization signal of the Nth frame is received;
  • a calculation module configured to calculate the backlight brightness data of the display screen according to the pixel data through a backlight algorithm
  • the sending module is configured to synchronously send the image to be displayed of the N+1th frame and the backlight brightness data to the display screen and the backlight driving board respectively after receiving the synchronization signal of the N+1th frame.
  • the embodiment of the present application also provides an electronic device, including:
  • processors one or more processors, memory; and
  • One or more programs wherein the one or more programs are stored in the memory and executed by the one or more processors, the programs include a program for performing the image display described in any one of the above method directive.
  • the electronic device further includes a display screen, the display screen includes a display panel and a backlight module, the display panel is set corresponding to the backlight module, and the display panel includes a plurality of display sub-units area, the backlight module includes a plurality of backlight block units, and each of the display sub-areas is set corresponding to a plurality of the backlight block units.
  • the electronic device further includes a plurality of driving backlight boards, and each of the driving boards scans row by row to drive a plurality of the backlight block units corresponding to one of the display sub-regions.
  • the embodiment of the present application also provides a non-volatile computer-readable storage medium of a computer program, when the computer program is executed by one or more processors, the processors are made to perform any of the above-mentioned image display method.
  • the image display method, image processing device, electronic equipment, and computer storage medium of the embodiments of the present application when the synchronization signal of the Nth frame is received, the image to be displayed in the N+1th frame is acquired and the N+1th frame to be displayed is obtained.
  • the pixel data of the pixels in the image, and the backlight algorithm calculates the backlight brightness data of the display screen according to the pixel data.
  • the image to be displayed and the backlight brightness data of the N+1th frame They are respectively sent to the display screen and the backlight driver board synchronously.
  • the backlight driver board can control the backlight in the display screen according to the backlight brightness data for fine control, which improves the contrast of the display screen and avoids the overall brightness of the screen. Too bright saves power consumption and improves user viewing experience.
  • FIG. 1 is a schematic block diagram of an electronic device according to some embodiments of the present application.
  • FIG. 2 is a schematic diagram of a module in which a backlight module is connected to a backlight driver board in some embodiments of the present application;
  • FIG. 3 is a schematic flowchart of an image display method in some embodiments of the present application.
  • FIG. 4 is a block diagram of an image processing device in some embodiments of the present application.
  • Fig. 5 is a schematic diagram of another module of an electronic device according to some embodiments of the present application.
  • Fig. 6 is a schematic diagram of modules connecting a storage medium and a processor in some embodiments of the present application.
  • FIG. 7 is a schematic diagram of an image display method in some embodiments of the present application.
  • FIG. 8 is a schematic diagram of a scene in an image display method in some embodiments of the present application.
  • FIG. 9 is a schematic flowchart of an image display method in some embodiments of the present application.
  • FIG. 10 is a schematic flowchart of an image display method in some embodiments of the present application.
  • FIG. 11 is a schematic flowchart of an image display method in some embodiments of the present application.
  • Fig. 12 is a schematic flow diagram of an image display method in some embodiments of the present application.
  • An image processing device 10 an acquisition module 12, a calculation module 14, and a sending module 16;
  • Electronic device 100 display screen 110 , display panel 111 , backlight module 112 , backlight block unit 1121 , backlight driver board 120 , processor 20 , memory 30 , program 32 , storage medium 40 , and computer program 42 .
  • the present application provides an electronic device 100.
  • the electronic device 100 includes a display screen 110 and a backlight driver board 120.
  • the display screen 110 includes a display panel 111 and a backlight module 112.
  • the display panel 111 and the backlight The module 112 is provided correspondingly, and the backlight driving board 120 is used to drive the backlight module 112 .
  • the electronic device 100 may be a smart wearable device such as a TV, a computer, a mobile phone, a tablet or an electronic watch, a VR device, and an AR device.
  • the electronic device 100 may be a TV
  • the display screen 110 of the electronic device 100 refers to a TV screen.
  • the display screen 110 is a liquid crystal display (Liquid Crystal Display, LCD).
  • the display panel 111 is used to display the image to be displayed
  • the backlight module 112 is used to generate a backlight to cooperate with the display panel 111 to display the image to be displayed.
  • the display panel 111 is divided into display sub-areas, and the data of the display sub-areas may be 4, 6, 8 or even more, and the specific number of the display sub-areas is not limited.
  • the display sub-regions may include four, that is, the display panel 111 may be divided into four display sub-regions.
  • Each display sub-area includes a plurality of pixel units, and the display sub-area displays an image to be displayed through the pixel units.
  • the backlight module 112 can be composed of a plurality of backlight block units 1121 arranged in an array, and the backlight block units 1121 can be light-emitting elements such as OLED, Mini-LED or Micro-LED. - LEDs are used as the light-emitting block unit 1121 , that is, the backlight module 112 is formed by arranging a plurality of Micro-LED arrays.
  • each display sub-region corresponds to a plurality of backlight block units 1121 .
  • the multiple backlight block units 1121 corresponding to each display sub-area are configured with a driving backlight panel, and each driving backlight plate is connected to the multiple backlight block units 1121 corresponding to the display sub-area.
  • the backlight panel is driven for progressive scanning to display a plurality of backlight block units 1121 corresponding to the sub-regions.
  • the brightness of the backlight partitions can be finely controlled, thereby improving the brightness of the TV screen. If the display screen output by the host computer is input to a specific computing platform, the platform can read the screen content line by line and calculate the image backlight data, and then output the picture content to the screen.
  • the backlight data of this frame is one frame behind the screen data; at the same time, because the computing platform is located between the PC output and the screen display, the screen data is also one frame behind the original, which causes the screen display The content is one frame behind the original, and the backlight is two frames behind the original, resulting in a mismatch between the brightness of the backlight and the display screen, affecting the viewing experience.
  • the present application also provides an image display method, the image display method includes steps:
  • the embodiment of the present application also provides an image processing device 10 .
  • the image processing device 10 includes an acquisition module 12 , a calculation module 14 , and a sending module 16 .
  • S12 may be implemented by the acquisition module 12
  • S14 may be implemented by the calculation module 14
  • S16 may be implemented by the sending module 16 .
  • the acquisition module 12 may be configured to acquire the N+1th frame of the image to be displayed and obtain the pixel data of the pixels in the N+1th frame of the image to be displayed when the synchronization signal of the Nth frame is received.
  • the calculation module 14 can be used to calculate the backlight luminance data of the display screen according to the pixel data through a backlight algorithm.
  • the sending module 16 can be configured to synchronously send the image to be displayed and the backlight brightness data of the N+1th frame to the display screen and the backlight driving board respectively after receiving the synchronization signal of the N+1th frame.
  • the electronic device 100 of the present application also includes one or more processors 20, memory 30; and one or more programs 32, wherein one or more programs 32 are stored in the memory 30, and are programmed by or a plurality of processors 20, and the program 32 is executed by the processor 20 to execute the instructions of the above-mentioned image display method.
  • the embodiment of the present application also provides a non-volatile computer-readable storage medium 40, the readable storage medium 40 stores a computer program 42, when the computer program 42 is executed by one or more processors 20 , so that the processor 20 executes the above image display method.
  • the image processing device 10 when receiving the synchronization signal of the Nth frame, the image to be displayed in the N+1th frame is acquired and the N+1th frame is obtained
  • the pixel data of the pixels in the image to be displayed, and the backlight brightness data of the display screen 110 are calculated by the backlight algorithm according to the pixel data, and finally after receiving the synchronization signal of the N+1th frame, the image to be displayed in the N+1th frame and
  • the backlight brightness data are synchronously sent to the display screen 110 and the backlight driving board 120 respectively, so that the backlight driving board 120 can control the backlight in the display screen 110 according to the backlight brightness data for fine control, improving the contrast of the display screen in the display screen 110, and at the same time, It also prevents the overall brightness of the screen of the display screen 110 from being too bright, saves power consumption, and improves the viewing experience of the user.
  • the image processing apparatus 10 may be a part of the electronic device 100 .
  • the electronic device 100 includes the image processing device 10 .
  • the image processing device 10 can be a discrete component assembled in a certain way to have the aforementioned functions, or a chip with the aforementioned functions in the form of an integrated circuit, or a computer that enables the computer to have the aforementioned functions when running on a computer.
  • Computer software code segment can be a discrete component assembled in a certain way to have the aforementioned functions, or a chip with the aforementioned functions in the form of an integrated circuit, or a computer that enables the computer to have the aforementioned functions when running on a computer.
  • the image processing device 10 may be independent or added to a computer or a computer system as an additional peripheral component.
  • the image processing device 10 can also be integrated into a computer or a computer system, for example, when the image processing device 10 is a part of the electronic device 100 , the image processing device 10 can be integrated into the processor 20 .
  • the image processing apparatus 10 is a part of the electronic device 100
  • code segments corresponding to the image processing apparatus 10 may be stored in the memory 30 and executed by the processor 20 to implement the aforementioned functions.
  • the image processing device 10 includes the aforementioned one or more programs 32 , or the aforementioned one or more programs 32 include the image processing device 10 .
  • the computer-readable storage medium 40 may be a storage medium built into the electronic device 100, such as the memory 30, or a storage medium that can be plugged into the electronic device 100 in a pluggable manner, such as an SD card, etc. .
  • the pixel data can be RGB pixel data. That is, the pixel data of the pixels in the image to be displayed in the N+1th frame is RGB pixel data.
  • RGB is designed from the principle of color light emission.
  • RGB includes three color channels of red, green and blue. Each color is divided into 256 levels of brightness. At 0, the "light” is the weakest - it is turned off, At 255 the "light” is at its brightest.
  • the three-color grayscale values are the same, gray tones with different grayscale values are produced, that is, when the three-color grayscales are all 0, it is the darkest black tone; when the three-color grayscales are all 255, it is the brightest white tone .
  • RGB values refer to brightness and are expressed using integers. Under normal circumstances, RGB each has 256 levels of brightness, which are represented by numbers from 0, 1, 2...254, 255.
  • each pixel of the N+1th frame of the image to be displayed includes a set of pixel data, that is, if the pixel data is RGB pixel data, one pixel includes a set of RGB pixel data.
  • each pixel point can be represented by three pixel units.
  • the pixel data may be pixel data corresponding to other display modes, that is, the pixel data may be image data displayed on various displays.
  • the pixel data may also be RGBW pixel data.
  • the electronic device 100 may also include an image processing unit (Graphics Processing Unit, GPU), and the image processing unit is used for rendering and generating an image to be displayed.
  • the processor 20 can acquire the image to be displayed from the image processing unit, and since the image to be displayed is displayed on the display screen 110 in the form of frames, the display screen 110 usually refreshes one frame of the image to be displayed every time it is refreshed.
  • the image displayed on the display screen 110 is the image to be displayed of the Nth frame
  • the processor 20 acquires the synchronization signal of the N+1th frame
  • the image displayed on the display screen 110 is Image to be displayed in frame N+1.
  • the image to be displayed in the N+1th frame is divided into a plurality of image sub-regions, and each image sub-region includes a plurality of pixels.
  • the image sub-regions are in one-to-one correspondence with the backlight block units 1121 .
  • the synchronization signal is a pulse signal with a preset frequency.
  • the synchronization signal can be a vertical synchronization signal (Vertical synchronization, Vsync). Vertical synchronization is also called vertical synchronization (Vertical Hold). From the perspective of the display principle of a CRT display, a single pixel forms a horizontal scanning line, and the vertical scanning line The accumulation forms a complete picture.
  • the refresh rate of the display screen 110 is controlled by the DAC of the graphics card, and the DAC of the graphics card will generate a vertical synchronization signal after scanning one frame.
  • the vertical synchronization signal indicates the end of the image to be displayed in the Nth frame and the start of the image to be displayed in the N+1th frame.
  • the Nth frame and the N+1th frame are used to distinguish the sequence of the synchronization signals of two adjacent frames, wherein the synchronization signal of the Nth frame comes first, and the synchronization signal of the N+1th frame comes after,
  • the synchronization signal does not substantially represent a specific frame.
  • the synchronization signal includes the first frame synchronization signal, the second frame synchronization signal and the third frame synchronization signal arranged in sequence.
  • the first frame synchronization signal and the second frame synchronization signal In terms of, the first frame is the Nth frame, the second frame is the N+1th frame, as far as the second frame synchronization signal and the third frame synchronization signal are concerned, the second frame is the Nth frame, and the third frame is the Nth frame +1 frame.
  • the processor 20 when the processor 20 receives the synchronization signal of the Nth frame, it acquires the N+1th frame of the image to be displayed, and traverses the pixels in the N+1th frame of the image to be displayed point to obtain the pixel data of each pixel, and then calculate the backlight luminance data of each backlight block unit 1121 in the backlight module 112 through the backlight algorithm.
  • the processor 20 receives the synchronization signal of the Nth frame, it acquires the N+1th frame of the image to be displayed, and traverses the pixels in the N+1th frame of the image to be displayed point to obtain the pixel data of each pixel, and then calculate the backlight luminance data of each backlight block unit 1121 in the backlight module 112 through the backlight algorithm.
  • the processor 20 receives the synchronization signal of the Nth frame, it acquires the N+1th frame of the image to be displayed, and traverses the pixels in the N+1th frame of the image to be displayed point to obtain the pixel data of each pixel, and then calculate
  • the processor 20 After calculating the backlight brightness data of each backlight block unit 1121, if the processor 20 receives the synchronization signal of the N+1th frame, it sends the N+1th frame of the image to be displayed to the display panel 111, and at the same time , respectively synchronously sending the backlight luminance data to a plurality of backlight driving boards 120 .
  • the display panel 111 includes a plurality of pixel units and a driving unit electrically connected to the pixel units, the plurality of pixel units correspond to the pixels of the image to be displayed in the N+1th frame, and the driving unit scans the pixel units row by row to drive The pixel unit displays the image to be displayed in the N+1th frame.
  • the backlight driver board 120 performs row-by-row scanning according to the backlight brightness data to drive the backlight block unit 1121 corresponding to the display sub-region to emit light, so that the backlight generated by the backlight module 112 and the display panel 111 displayed images are synchronized.
  • the backlight generated by the backlight module 112 is related to the image to be displayed. Therefore, the backlight image generated by the backlight module 112 corresponds to the image to be displayed.
  • the backlight brightness of the backlight module 112 matches the display screen of the display panel 111, and the luminance of different backlight block units 1121 is different, so that the contrast ratio increases when the display screen 110 displays the image to be displayed, and the visual effect is enhanced.
  • the brightness of the backlight block units 1121 in the backlight module 112 is different, which can effectively reduce the power consumption of the backlight module 112 .
  • step S14 includes sub-steps:
  • step S142 , step S144 and S146 may be implemented by the computing module 14 .
  • the calculation module 14 may be used to count the number of pixels with pixel luminance values greater than 0 in the image sub-region.
  • the calculation module 14 can also be used to determine that the backlight block unit corresponding to the image sub-area is turned on and the pixels whose pixel brightness values are greater than 0 in the image sub-area when the number of pixels with pixel brightness values greater than 0 in the image sub-area is greater than the first threshold When the number of dots is not greater than the first threshold, it is determined that the backlight block unit corresponding to the image sub-region is turned off.
  • the processor 20 can be used to count the number of pixels with pixel brightness values greater than 0 in the image sub-region and the number of pixels with pixel brightness values greater than 0 in the image sub-region is greater than the first When a threshold value is reached, it is determined that the backlight block unit corresponding to the image sub-region is turned on.
  • the processor 20 may also be configured to determine that the backlight block unit corresponding to the image sub-area is turned off when the number of pixels with pixel luminance values greater than 0 in the image sub-area is not greater than the first threshold.
  • the first threshold refers to a value predefined by the electronic device 100.
  • the first threshold can be adjusted according to the number of all pixels in the image sub-region. For example, if the number of all pixels in the image sub-region is 100, then the first threshold A threshold can be 60, 62, 65, 70, 75, 80 or even more values greater than or equal to 50, and for example, the number of all pixels in the image sub-region is 1000, The first threshold can be 600, 620, 650, 700, 750, or 800 values greater than or equal to 500. It can be understood that since the first threshold is used to compare with the number of pixels whose brightness value is greater than 0, it is determined The corresponding backlight block unit 1121 is turned on or off.
  • the backlight block unit 1121 can be turned on as long as the number of pixels whose pixel brightness value is greater than 0 accounts for more than half of the total number of pixels. For example, in some examples, if the number of pixels in the image sub-region is 10,000, the first threshold may be 7,000, that is, when the number of pixels with pixel brightness values greater than 0 is greater than 7,000, the image is determined to be The backlight block unit 1121 corresponding to the sub-region is turned on, otherwise, it is determined that the backlight block unit 1121 corresponding to the image sub-region is turned off.
  • the processor 20 may process the pixel data of each pixel in each image sub-region to obtain the pixel brightness value of each pixel, and count the number of pixels with pixel brightness values greater than 0 in the image sub-region. If the number of pixels with pixel luminance values greater than 0 in the image sub-region is greater than the first threshold, it is determined that the backlight block unit 1121 corresponding to the image sub-region is turned on, otherwise, it is determined that the backlight block unit 1121 corresponding to the image sub-region is turned off, so, It is realized that the backlight block unit 1121 is turned on or off according to the RGB values of the pixels in the image sub-region, so that after receiving the synchronization signal of the N+1th frame, when the display module displays the image to be displayed in the N+1th frame, The backlight of the image sub-regions that only need the backlight can be turned on, and the backlight of the image sub-regions that do not need the backlight can be turned off, thus effectively reducing the power consumption of the display screen 110
  • step S142 includes sub-steps:
  • substep S1422 and substep S1424 can be implemented by the calculation module 14 .
  • the calculation module 14 can be used to separately obtain the maximum brightness of each sub-pixel data of the pixel points in the image sub-region.
  • the calculation module 14 can also be used to set the maximum brightness as the pixel brightness value of the corresponding pixel.
  • the processor 20 may be configured to respectively acquire the maximum brightness of each sub-pixel data of the pixel points in the image sub-region.
  • the processor 20 can also be used to set the maximum brightness as the pixel brightness value of the corresponding pixel.
  • the opening or closing of the backlight block unit 1121 corresponding to the image sub-area needs to be determined by the pixel brightness value of the pixel in the image sub-area, and each pixel in the image sub-area represents a pixel data, and the pixel data is determined by Each sub-pixel data is combined, therefore, the luminance value of each sub-pixel data in each pixel point can be counted, and the luminance value of each sub-pixel data can be compared to obtain the maximum luminance value in each sub-pixel data, and the The maximum brightness value is used as the pixel brightness value of the pixel point. In this way, the pixel luminance value of the pixel point can be made to facilitate the determination of the number of pixel points whose pixel luminance value is greater than 0, so as to realize the control on turning on or off the backlight block unit 1121 .
  • the pixel data is RGB pixel data
  • the RGB pixel data includes R pixel data, G pixel data, and B pixel data.
  • the formula for calculating the pixel brightness value of a pixel point is:
  • step S14 also includes substeps:
  • substep S148 is implemented by the calculation module 14 .
  • the calculation module 14 can also be used to determine the backlight brightness data of the corresponding backlight block unit according to the pixel brightness value of each pixel in the image sub-region.
  • the processor 20 may also be configured to determine the backlight brightness data of the corresponding backlight block unit according to the pixel brightness value of each pixel in the image sub-region.
  • sub-step S1442 is to determine the corresponding backlight block unit 1121.
  • the brightness of the turned-on backlight block units 1121 makes the backlight brightness data of different backlight block units 1121 different, that is, the backlight brightness data of different backlight block units 1121 are corrected and adjusted. In this way, the backlight of the backlight block unit 1121 can be further matched with the display of the corresponding image sub-region, which further enhances the contrast of the image displayed on the display panel 111 and improves the visual experience.
  • step S148 is to determine the backlight brightness data of the backlight block unit corresponding to the image sub-region determined to be turned on. Brightness data can be 0.
  • step S148 also includes sub-steps:
  • substeps S1482 , S1484 and substep S1486 can be implemented by the computing module 14 .
  • the calculation module 14 can also be used to calculate the average pixel brightness value of the pixels in the image sub-region corresponding to the backlight block unit and sort the pixel brightness values of all pixels in the image sub-region to obtain the pixels of the first preset sequence Brightness value; the calculation module 14 can also be used to calculate the backlight brightness of the backlight block unit according to the pixel brightness value of the first preset sequence, the average pixel brightness value, and the interpolation between the pixel brightness value and the average pixel brightness value of the first preset sequence data.
  • the processor 20 can be used to calculate the average pixel brightness value of the pixels in the image sub-region corresponding to the backlight block unit and sort the pixel brightness values of all pixels in the image sub-region to obtain the first preset The pixel brightness value of the sequence; the processor 20 can also calculate the backlight of the backlight block unit according to the pixel brightness value of the first preset sequence, the average pixel brightness value, and the interpolation between the image brightness value and the average pixel brightness value of the first preset sequence Brightness data.
  • the pixel luminance values of all pixels in the image sub-region corresponding to the backlight block unit 112 are first obtained, and the pixel luminance values of all pixels are accumulated and divided by the total number of all pixels to obtain the average pixel luminance value of the pixels, and Sorting is performed according to the pixel brightness values of the pixels, and the pixel brightness values of the first preset sequence are determined. Furthermore, the interpolation between the pixel brightness value and the average pixel brightness value of the first preset sequence is calculated, and finally according to the pixel brightness value, the average pixel brightness value of the first preset sequence, and the pixel brightness value and the average pixel brightness value of the first preset sequence The interpolation calculation of the value obtains the backlight brightness data of the backlight block unit.
  • the backlight brightness data of each backlight block unit 1121 can be obtained, so that the backlight driving board 120 can drive the backlight block unit 1121 according to the backlight brightness data of each backlight block unit 1121 . In this way, fine control of the backlight of the backlight block unit 1121 is realized.
  • the first preset sequence is a predefined value, and the value of the first preset sequence can be adjusted without specific limitation.
  • the value of the first preset sequence is the 5th percentile
  • the specific calculation formula of the backlight brightness data of the backlight block unit 1121 is:
  • L backlight is the backlight brightness data of the backlight block unit 1121 corresponding to the current image sub-region
  • L avg is the average pixel brightness value of all pixels in the current image sub-region
  • L 0.05 is to sort the pixel brightness values of all pixels
  • the luminance value of the 5th percentile pixel after sorting, L dif is the interpolation between the luminance value of the 5th percentile pixel after sorting and the average pixel luminance value.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

Abstract

一种图像显示方法，包括步骤：在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到第N+1帧待显示图像中像素点的像素数据(S12)，通过背光算法根据像素数据计算显示屏的背光亮度数据(S14)，在接收到第N+1帧的同步信号后，将第N+1帧待显示图像和背光亮度数据分别同步发送至显示屏和背光驱动板(S16)。此外，还公开了一种图像处理装置、电子设备以及存储介质。

Description

图像显示方法、装置、电子设备及存储介质 技术领域
本申请涉及图像显示领域，特别涉及一种图像显示方法、图像处理装置、电子设备及存储介质。
背景技术
随着显示技术的发展，屏幕的尺寸和分辨率不断提高，随之而增加的是电能的消耗，目前，市面上的液晶显示屏的背光是一整块背光，需要一直亮着，造成了不必要的浪费；而且，由于屏幕过大的原因，导致电视屏幕画面会整体偏亮，长时间观看会造成人体的不适感。
发明内容
有鉴于此，本申请提供一种图像显示方法、图像处理装置、电子设备及存储介质。
本申请实施方式的图像显示方法包括：
在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到所述第N+1帧待显示图像中像素点的像素数据；
通过背光算法根据所述像素数据计算显示屏的背光亮度数据；和
在接收到第N+1帧的所述同步信号后，将所述第N+1帧待显示图像和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板。
在某些实施方式中，所述第N+1帧待显示图像包括多个图像子区域，每个所述图像子区域包括多个像素点，所述显示屏包括多个背光块单元，所述图像子区域与所述背光块单元一一对应，所述通过背光算法根据所述像素数据计算所述显示屏的背光亮度数据包括：
统计所述图像子区域中像素亮度值大于0的像素点数量；
在所述图像子区域中所述像素亮度值大于0的所述像素点数量大于第一阈值时，确定所述图像子区域对应的所述背光块单元开启；
在所述图像子区域中所述像素亮度值大于0的像素点数量不大于所述第一阈值时，确定所述图像子区域对应的所述背光块单元关闭。
在某些实施方式中，所述统计所述图像子区域中像素亮度值大于0的所述像素点数量包括：
分别获取所述图像子区域中的所述像素点的各个子像素数据的最大亮度；
将所述最大亮度设置为对应的所述像素点的所述像素亮度值。
在某些实施方式中，所述确定所述图像子区域对应的所述背光块单元开启包括：
根据所述图像子区域中的每个所述像素点的所述像素亮度值确定对应的所述背光块单元的所述背光亮度数据。
在某些实施方式中，所述根据所述图像子区域中的每个所述像素点的所述像素亮度值确定对应的所述背光块单元的所述背光亮度数据包括：
计算所述背光块单元对应的所述图像子区域中所述像素点的平均像素亮度值；
对图像子区域中所有所述像素的所述像素亮度值进行排序并得到第一预设序列的所述像素亮度值；
根据所述第一预设序列的所述像素亮度值、所述平均像素亮度值以及所述第一预设序列的所述像素亮度值与所述平均像素亮度值的插值计算得到所述背光块单元的所述背光亮度数据。
在某些实施方式中，所述背光驱动板包括多个，所述显示屏包括多个显示子区域，每个所述显示子区域对应多个所述背光块单元，每个所述显示子区域对应设置有一个所述背光驱动板，所述将所述第N+1帧待显示图像和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板包括：
将所述背光亮度数据分别同步发送至所述多个背光驱动板。
在某些实施方式中，所述图像显示方法还包括：控制所述背光驱动板根据所述背光亮度数据逐行扫描以驱动所述显示子区域对应的多个所述背光块单元。
在某些实施方式中，，所述显示屏包括多个像素单元，所述像素单元与所述第N+1帧待显示图像的像素点对应，图像显示方法包括：
控制所述显示屏逐行扫描以驱动多个所述像素单元显示所述第N+1帧待显示图像。
本申请实施方式的图像处理装置包括：
获取模块，用于在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到所述第N+1帧待显示图像中像素点的像素数据；
计算模块，用于通过背光算法根据所述像素数据计算显示屏的背光亮度数据；和
发送模块，用于在接收到第N+1帧的所述同步信号后，将所述第N+1帧待显示图像和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板。
本申请实施方式还提供了一种电子设备，包括：
一个或多个处理器、存储器；和
一个或多个程序，其中所述一个或多个程序被存储在所述存储器中，并且被所述一个或多个处理器执行，所述程序包括用于执行上述任意一项所述的图像显示方法的指令。
在某些实施方式中，所述电子设备还包括显示屏，所述显示屏包括显示面板和背光模 组，所述显示面板与所述背光模组对应设置，所述显示面板包括多个显示子区域，所述背光模组包括多个背光块单元，每个所述显示子区域对应多个所述背光块单元设置。
在某些实施方式中，所述电子设备还包括多个驱动背光板，每个所述驱动板逐行扫描以驱动一个所述显示子区域对应的多个所述背光块单元。
本申请实施方式还提供了一种计算机程序的非易失性计算机可读存储介质，当所述计算机程序被一个或多个处理器执行时，使得所述处理器执行上述中任一项所述的图像显示方法。
本申请实施方式的图像显示方法、图像处理装置、电子设备及计算机存储介质中，通过在接收到第N帧同步信号时，获取第N+1帧待显示图像并得到第N+1帧待显示图像中像素点的像素数据，并由背光算法根据像素数据计算显示屏的背光亮度数据，最后在接收到第N+1帧的同步信号后，将第N+1帧待显示图像和背光亮度数据分别同步发送至显示屏和背光驱动板，如此，背光驱动板可根据背光亮度数据控制显示屏中背光进行精细控制，提高了显示屏显示画面的对比度，同时，也避免了显示屏画面整体的亮度过亮，节省了功耗，并且，改善了用户观看体验。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1是本申请某些实施方式的电子设备的模块示意图；
图2是本申请某些实施方式的背光模组与背光驱动板连接的模块示意图；
图3是本申请某些实施方式的图像显示方法的流程示意图；
图4是本申请某些实施方式的图像处理装置的模块示意图；
图5是本申请某些实施方式的电子设备的又一模块示意图；
图6是本申请某些实施方式的存储介质与处理器连接的模块示意图；
图7是本申请某些实施方式的图像显示方法的实现示意图；
图8是本申请某些实施方式的图像显示方法中的一个场景示意图；
图9是本申请某些实施方式的图像显示方法的流程示意图；
图10是本申请某些实施方式的图像显示方法的流程示意图；
图11是本申请某些实施方式的图像显示方法的流程示意图；
图12是本申请某些实施方式的图像显示方法的流程景示意图。
主要元件符号说明：
图像处理装置10、获取模块12、计算模块14、发送模块16；
电子设备100、显示屏110、显示面板111、背光模组112、背光块单元1121、背光驱动板120、处理器20、存储器30、程序32、存储介质40、计算机程序42。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
随着显示技术的发展，以及人们对清晰度和对比度的需求，液晶显示屏的分辨率和尺寸逐渐增大，目前4K液晶显示器已经很普及，8K液晶显示器正在逐步普及中。但是，液晶显示器越大也就意味着功耗越大，因为市面现有的液晶显示器的背光大部分是一整块背光，需要一直亮着，造成了不必要的浪费，并且，因为屏幕过大的原因，导致液晶显示屏画面会整体偏亮，长时间观看会造成人体的不适感。
请结合图1，有鉴于此，本申请提供了一种电子设备100，电子设备100包括显示屏110和背光驱动板120，显示屏110包括显示面板111和背光模组112，显示面板111与背光模组112对应设置，背光驱动板120用于驱动背光模组112。
电子设备100可以为电视、计算机、手机、平板或电子手表、VR设备、AR设备等智能可穿戴设备等。例如，在一些示例中，电子设备100可以为电视，则电子设备100的显示屏110是指电视屏幕。
显示屏110为液晶显示屏(Liquid Crystal Display，LCD)。其中，显示面板111用于显示待显示图像，背光模组112用于产生背光以配合显示面板111将待显示图像显示。
显示面板111分成有显示子区域，显示子区域的数据可以为4个、6个、8个甚至更多个，显示子区域的具体数量不限。例如，在本申请中，显示子区域可包括4个，也即是，可将显示面板111划分成4个显示子区域。每个显示子区域包括多个像素单元，显示子区域通过像素单元显示待显示图像。
请结合图2，背光模组112可由多个阵列排布的背光块单元1121组成，背光块单元1121可以为OLED、Mini-LED或Micro-LED等发光元件，例如，在本申请中可以以Micro-LED作为发光块单元1121，也即是，背光模组112由多个Micro-LED阵列排布而形成。
进一步地，每个显示子区域对应多个背光块单元1121。每个显示子区域对应的多个背光块单元1121配置有一个驱动背光板，每个驱动背光板与显示子区域对应的多个背光块单元1121连接。驱动背光板用于逐行扫描以显示子区域对应的多个背光块单元1121。
可以理解，通过对显示屏的背光进行分区，对背光分区的亮度精细控制，从而改善电视屏幕的亮度。若将主机输出的显示画面输入到特定的计算平台，该平台通过逐行读取画面内容并计算图像背光数据，之后可以将画面内容输出到屏幕上。然而，由于计算背光的能力限制，该帧的背光数据比画面数据要滞后一帧；同时，由于计算平台位于PC输出和屏幕显示之间，画面数据比原来也落后一帧，这样就导致屏幕显示的内容比原先落后一帧，背光比原先落后两帧，导致出现背光亮度与显示画面不匹配，影响观感体验。
因此，请参阅图3，本申请还提供一种图像显示方法，图像显示方法包括步骤：
S12，在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到第N+1帧待显示图像中像素点的像素数据；
S14，通过背光算法根据像素数据计算显示屏的背光亮度数据；和
S16，在接收到第N+1帧的同步信号后，将第N+1帧待显示图像和背光亮度数据分别同步发送至显示屏和背光驱动板。
请参阅图4，本申请实施方式还提供了一种图像处理装置10。图像处理装置10包括获取模块12、计算模块14、发送模块16。
S12可以由获取模块12实现，S14可以由计算模块14实现，S16可以由发送模块16实现。
或者说，获取模块12可以用于在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到第N+1帧待显示图像中像素点的像素数据。
计算模块14可以用于通过背光算法根据像素数据计算显示屏的背光亮度数据。
发送模块16可以用于在接收到第N+1帧的同步信号后，将第N+1帧待显示图像和背光亮度数据分别同步发送至显示屏和背光驱动板。
请参阅图5，本申请的电子设备100，还包括一个或者多个处理器20、存储器30；和一个或多个程序32，其中一个或多个程序32被存储在存储器30中，并且被一个或多个处理器20执行，程序32被处理器20执行上述图像显示方法的指令。
请参阅图6，本申请实施方式还提供了一种非易失性计算机可读存储介质40，可读存储介质40存储有计算机程序42，当计算机程序42被一个或多个处理器20执行时，使得处理器20执行上述的图像显示方法。
本申请实施方式的图像显示方法、图像处理装置10、电子设备100及存储介质40中，通过在接收到第N帧同步信号时，获取第N+1帧待显示图像并得到第N+1帧待显示图像中像素点的像素数据，并由背光算法根据像素数据计算显示屏110的背光亮度数据，最后在接收到第N+1帧的同步信号后，将第N+1帧待显示图像和背光亮度数据分别同步发送至显示屏110和背光驱动板120，如此，背光驱动板120可根据背光亮度数据控制显示屏110中背光进行精细控制，提高了显示屏110中显示画面的对比度，同时，也避免了显示屏110画面整体的亮度过亮，节省了功耗，并且，改善了用户观看体验。
在一些实施方式中，图像处理装置10可以是电子设备100的一部分。或者说，电子设备100包括图像处理装置10。
在一些实施方式中，图像处理装置10可以是一定方式组装以具有前述功能的分立元件、或者是以集成电路形式存在具有前述功能的芯片、又或者是在计算机上运行时使得计算机具有前述功能的计算机软件代码段。
在一些实施方式中，作为硬件，图像处理装置10可以是独立或者作为额外增加的外围元件加装到计算机或者计算机系统。图像处理装置10也可以集成到计算机或者计算机系统，例如，图像处理装置10是电子设备100的一部分时，图像处理装置10可以集成到处理器20上。
在一些图像处理装置10是电子设备100的一部分的实施方式中，作为软件，图像处理装置10对应的代码段可以存储于存储器30上通过处理器20执行实现前述功能。或者说图像处理装置10包括前述的一个或多个程序32，又或者说前述的一个或多个程序32包括图像处理装置10。
在一些实施方式中，计算机可读存储介质40可以是内置在电子设备100的存储介质，例如可以是存储器30，也可以是能够插拔地插接在电子设备100的存储介质，例如SD卡等。
需要说明的是，由于RGB模式是显示屏的常用物理色彩模式，也即是，而通常图像是以RGB方式在显示屏上显示的，而第N+1帧待显示图像是用于在显示屏中显示，因此，像素数据可以为RGB像素数据。也即是，第N+1帧待显示图像中像素点的像素数据为RGB像素数据。
RGB是从颜色发光的原理来设计定的，RGB包括红、绿、蓝三个颜色通道，每种色各分为256阶亮度，在0时“灯”最弱——是关掉的，而在255时“灯”最亮。当三色灰度数值相同时，产生不同灰度值的灰色调，即三色灰度都为0时，是最暗的黑色调；三色灰度都为255时，是最亮的白色调。RGB值是指亮度，并使用整数来表示。 通常情况下，RGB各有256级亮度，用数字表示为从0、1、2...254、255。
还需要说明的是，每个第N+1帧待显示图像的像素点包括一组像素数据，也即是，若像素数据为RGB像素数据，则一个像素点包括一组RGB像素数据。当第N+1帧待显示图像在显示屏110中显示时，每个像素点可由三个像素单元表示。
当然，在可以理解地，若显示屏110的物理色彩模式为其它显示模式，则像素数据可以为其它显示模式对应的像素数据，也即是，像素数据可以为各类显示器上显示的图像数据。例如，显示屏110的物理色彩模式为RGBW模式，则像素数据也可以为RGBW像素数据。
另外，电子设备100还可包括图像处理单元(Graphics Processing Unit，GPU)，图像处理单元用于渲染生成待显示图像。处理器20可从图像处理单元获取到待显示图像，并且，由于待显示图像是以帧的形式在显示屏110上显示，显示屏110通常每刷新一次，则刷新一帧待显示图像，在处理器20获取到第N帧的同步信号后，显示屏110显示的图像为第N帧的待显示图像，在处理器20获取到第N+1帧的同步信号后，显示屏110显示的图像为第N+1帧待显示图像。第N+1帧待显示图像分成有多个图像子区域，每个图像子区域包括有多个像素点。图像子区域与背光块单元1121一一对应。
请结合图7，相关领域技术人员可以理解，同步信号为预设频率的脉冲信号。同步信号可以为垂直同步信号(Vertical synchronization,Vsync)，垂直同步又称场同步(Vertical Hold)，从CRT显示器的显示原理来看，单个象素组成了水平扫描线，水平扫描线在垂直方向的堆积形成了完整的画面。显示屏110的刷新率受显卡DAC控制，显卡DAC完成一帧的扫描后就会产生一个垂直同步信号。垂直同步信号指示着第N帧待显示图像的结束和第N+1帧待显示图像的开始。
需要说明的是，第N帧与第N+1帧用于区分相邻两帧的同步信号的先后顺序，其中，第N帧的同步信号在先，第N+1帧的同步信号在后，并不实质代表具体帧的同步信号，例如，同步信号包括以先后顺序排列的第一帧同步信号、第二帧同步信号和第三帧同步信号，就第一帧同步信号和第二帧同步信号而言，第一帧为第N帧，第二帧为第N+1帧，就第二帧同步信号和第三帧同步信号而言，第二帧为第N帧，第三帧为第N+1帧。
请进一步第结合图2和图7，具体地，处理器20在接收到第N帧的同步信号时，获取第N+1帧待显示图像，并遍历第N+1帧待显示图像中的像素点以得到每个像素点的像素数据，进而通过背光算法计算出背光模组112中每个背光块单元1121的背光亮度数据。可以理解，由于第N+1帧待显示图像在显示面板111中显示时，第N+1帧待显示图像中的图像子区域与背光模组112的背光块单元1121一一对应。因此，可根据 第N+1帧待显示图像的像素点的像素数据处理得到背光块单元1121的亮度。
进一步地，在计算得到每个背光块单元1121的背光亮度数据后，若处理器20接收到第N+1帧的同步信号后，将第N+1帧待显示图像发送至显示面板111，同时，将背光亮度数据分别同步发送至多个背光驱动板120。
更进一步地，显示面板111包括有多个像素单元和与像素单元电连接的驱动单元，多个像素单元与第N+1帧待显示图像的像素点对应，驱动单元逐行扫描像素单元以驱动像素单元显示第N+1帧待显示图像，同时，背光驱动板120根据背光亮度数据进行逐行扫描以驱动显示子区域对应的背光块单元1121发光，使得背光模组112产生的背光与显示面板111显示的图像同步。
请结合图8，可理解，背光模组112产生背光由于与待显示图像相关，因此，背光模组112因产生背光而生成的背光图像与待显示图像对应。
如此，保证了背光模组112的背光亮度与显示面板111的显示画面相匹配，并且，不同背光块单元1121的发光亮度出现差异，使得显示屏110显示待显示图像时对比度增加，增强了视觉效果，同时，背光模组112中的背光块单元1121的亮度不一，能够有效降低背光模组112的功耗。
请参阅图9，在某些实施方式中，步骤S14包括子步骤：
S142，统计图像子区域中像素亮度值大于0的像素点数量；
S144，在图像子区域中像素亮度值大于0的像素点数量大于第一阈值时，确定图像子区域对应的背光块单元开启；和
S146，在图像子区域中像素亮度值大于0的像素点数量不大于第一阈值时，确定图像子区域对应的背光块单元关闭。
请进一步结合图4，在某些实施方式中，步骤S142、步骤S144以及S146可以由计算模块14实现。或者说，计算模块14可以用于统计图像子区域中像素亮度值大于0的像素点数量。计算模块14还可以用于在图像子区域中像素亮度值大于0的像素点数量大于第一阈值时，确定图像子区域对应的背光块单元开启以及在图像子区域中像素亮度值大于0的像素点数量不大于第一阈值时，确定图像子区域对应的背光块单元关闭。
请进一步结合图5，在某些实施方式中，处理器20可以用于统计图像子区域中像素亮度值大于0的像素点数量以及在图像子区域中像素亮度值大于0的像素点数量大于第一阈值时，确定图像子区域对应的背光块单元开启。处理器20还可以用于在图像子区域中像素亮度值大于0的像素点数量不大于第一阈值时，确定图像子区域对应的背光块单元关闭。
第一阈值是指电子设备100预先定义的一个数值，第一阈值可根据图像子区域中所有像素点的个数进行调节，例如，图像子区域中所有像素点的个数为100个，则第一阈值可以为60个、62个、65个、70个、75个、80个甚至更多个大于或等于50个的数值，又例如，图像子区域中所有像素点的个数为1000个，第一阈值可以为600、620、650、700、750或800个等大于或等于500的数值，可以理解，由于第一阈值是用于与像素亮度值大于0的像素点数量进行比较，从而确定开启或是关闭对应的背光块单元1121，因此，只要像素亮度值大于0的像素点数量占总像素点数量的半数以上就可开启背光块单元1121。例如，在一些示例中，图像子区域中的像素点的个数为10000个，则第一阈值可以为7000，也即是，当像素亮度值大于0的像素点数量大于7000时，则确定图像子区域对应的背光块单元1121开启，否者，确定图像子区域对应的背光块单元1121关闭。
具体地，处理器20可对每个图像子区域中每个像素点的像素数据进行处理得到每个像素点的像素亮度值，并统计在图像子区域中像素亮度值大于0的像素点数量。若在图像子区域中像素亮度值大于0的像素点数量大于第一阈值时，确定图像子区域对应的背光块单元1121开启，否者，确定图像子区域对应的背光块单元1121关闭，如此，实现了根据图像子区域的像素点的RGB值确定背光块单元1121的开启或关闭，从而在接收到第N+1帧的同步信号后，显示模组显示第N+1帧待显示图像时，可以将只需要背光的图像子区域开启背光，而将不需要背光的图像子区域的背光关闭，如此，有效减低了显示屏110的功耗。
请参阅图10，在某些实施方式中，步骤S142包括子步骤：
S1422，分别获取图像子区域中像素点的各个子像素数据的最大亮度；
S1424，将最大亮度设置为对应的像素点的像素亮度值。
在某些实施方式中，子步骤S1422以及子步骤S1424可以由计算模块14实现。或者说，计算模块14可以用于分别获取图像子区域中的像素点的各个子像素数据的最大亮度。计算模块14还可以用于将最大亮度设置为对应的像素点的像素亮度值。
在某些实施方式中，处理器20可以用于分别获取图像子区域中的像素点的各个子像素数据的最大亮度。处理器20还可以用于将最大亮度设置为对应的像素点的像素亮度值。
可以理解，由于图像子区域对应的背光块单元1121的开启或关闭需要由图像子区域中像素点的像素亮度值确定，而图像子区域中每个像素点都表示一个像素数据，而像素数据由各个子像素数据组合而成，因此，可统计每个像素点中各个子像素数据的的亮度值，并将各个子像素数据的亮度值进行比较得到各个子像素数据中的最大亮度 值，并将该最大亮度值作为该像素点的像素亮度值。如此，能够使得像素点的像素亮度值，从而便于判断出像素亮度值大于0的像素点数量以实现对背光块单元1121开启或关闭的控制。
例如，在本申请中，像素数据为RGB像素数据，RGB像素数据包括R像素数据、G像素数据以及B像素数据。像素点的像素亮度值的计算公式为：
L pixel＝max(r，g，b).value
请参阅图11，在某些实施方式中，在子步骤S144之后，步骤S14还包括子步骤：
S148，根据图像子区域中的每个像素点的像素亮度值确定对应的背光块单元的背光亮度数据。
请进一步结合图4，在某些实施方式中，子步骤S148由计算模块14实现。
或者说，计算模块14还可以用于根据图像子区域中的每个像素点的像素亮度值确定对应的背光块单元的背光亮度数据。
在某些实施方式中，处理器20还可以用于根据图像子区域中的每个像素点的像素亮度值确定对应的背光块单元的背光亮度数据。
由于在上述中根据图像子区域的像素点的像素亮度值只确定了对应背光块单元1121的开启或关闭，而背光块单元1121的亮度相同，因此，可理解，子步骤S1442目的是为了确定对开启的背光块单元1121的亮度，从而使得不同的背光块单元1121的背光亮度数据存在差异，也即是，对不同的背光块单元1121的背光亮度数据进行修正调节。如此，使得背光块单元1121的背光能够进一步地配合对应的图像子区域显示，进一步地增强了显示面板111中显示图像的对比度，改善视觉体验。
另外，需要说明的是，上述步骤S148是对确定开启的图像子区域对应的背光块单元的背光亮度数据进行确定，在确定图像子区域对应的背光块单元关闭的情况下，背光块单元的背光亮度数据可以为0。
请参阅图12，在某些实施方式中，步骤S148还包括子步骤：
S1482，计算背光块单元对应的图像子区域中像素点的平均像素亮度值；
S1484，对图像子区域中所有像素的像素亮度值进行排序并得到第一预设序列的像素亮度值；
S1486，根据第一预设序列的像素亮度值、平均像素亮度值以及第一预设序列的像素亮度值与平均像素亮度值的插值计算得到背光块单元的背光亮度数据。
在某些实施方式中，子步骤S1482、S1484以及子步骤S1486可以由计算模块14实现。或者说，计算模块14还可以用于计算背光块单元对应的图像子区域中像素点的平均像素亮度值以及对图像子区域中所有像素的像素亮度值进行排序并得到第一预设 序列的像素亮度值；计算模块14还可以用于根据第一预设序列的像素亮度值、平均像素亮度值以及第一预设序列的像素亮度值与平均像素亮度值的插值计算得到背光块单元的背光亮度数据。
在某些实施方式中，处理器20可以用于计算背光块单元对应的图像子区域中像素点的平均像素亮度值以及对图像子区域中所有像素的像素亮度值进行排序并得到第一预设序列的像素亮度值；处理器20还可以根据第一预设序列的像素亮度值、平均像素亮度值以及第一预设序列的像亮度值与平均像素亮度值的插值计算得到背光块单元的背光亮度数据。
具体地，先获取背光块单元112对应的图像子区域中所有像素点的像素亮度值，将所有像素点的像素亮度值累加并除以所有像素点的总数得到像素点的平均像素亮度值，以及根据像素点的像素亮度值大小进行排序，并确定第一预设序列的像素亮度值。进而，计算第一预设序列的像素亮度值与平均像素亮度值的插值，最后根据第一预设序列的像素亮度值、平均像素亮度值以及第一预设序列的像素亮度值与平均像素亮度值的插值计算得到背光块单元的背光亮度数据。
如此，可得到每个背光块单元1121的背光亮度数据，从而背光驱动板120可根据每个背光块单元1121的背光亮度数据驱动背光块单元1121。如此，实现了对背光块单元1121的背光精细控制。
需要说明的是，第一预设序列为预先定义的一个数值，第一预设序列的数值可调节，具体不设限制，例如，在本申请中，第一预设序列的数值为第5％，背光块单元1121的背光亮度数据具体的计算公式为：
Figure PCTCN2020139436-appb-000001
其中，L backlight为当前图像子区域对应的背光块单元1121的背光亮度数据，L avg为当前图像子区域中全部像素点的平均像素亮度值，L 0.05为将所有像素点的像素亮度值进行排序后第5％的像素亮度值，L dif为排序后第5％的像素亮度值与平均像素亮度值的插值。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如 多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (13)

  1. 一种图像显示方法，其特征在于，包括：
    在接收到第N帧的同步信号时，获取第N+1帧待显示图像的像素数据；
    根据所述像素数据计算显示屏的背光亮度数据；和
    在接收到第N+1帧的同步信号后，将所述第N+1帧待显示图像的像素数据和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板。
  2. 根据权利要求1所述的图像显示方法，其特征在于，所述第N+1帧待显示图像包括多个图像子区域，每个所述图像子区域包括多个像素点，所述显示屏包括多个背光块单元，所述图像子区域与所述背光块单元一一对应，所述通过背光算法根据所述像素数据计算所述显示屏的背光亮度数据包括：
    统计所述图像子区域中像素亮度值大于0的像素点数量；
    在所述图像子区域中所述像素亮度值大于0的所述像素点数量大于第一阈值时，确定所述图像子区域对应的所述背光块单元开启；
    在所述图像子区域中所述像素亮度值大于0的像素点数量不大于所述第一阈值时，确定所述图像子区域对应的所述背光块单元关闭。
  3. 根据权利要求2所述的图像显示方法，其特征在于，所述统计所述图像子区域中像素亮度值大于0的所述像素点数量包括：
    分别获取所述图像子区域中的所述像素点的各个子像素数据的最大亮度；
    将所述最大亮度设置为对应的所述像素点的所述像素亮度值。
  4. 根据权利要求2所述的图像显示方法，其特征在于，所述确定所述图像子区域对应的所述背光块单元开启还包括：
    根据所述图像子区域中的每个所述像素点的所述像素亮度值确定对应的所述背光块单元的所述背光亮度数据。
  5. 根据权利要求4所述的图像显示方法，其特征在于，所述根据所述图像子区域中的每个所述像素点的所述像素亮度值确定对应的所述背光块单元的所述背光亮度数据包括：
    计算所述背光块单元对应的所述图像子区域中所述像素点的平均像素亮度值；
    对图像子区域中所有所述像素的所述像素亮度值进行排序并得到第一预设序列的 所述像素亮度值；
    根据所述第一预设序列的所述像素亮度值、所述平均像素亮度值以及所述第一预设序列的所述像素亮度值与所述平均像素亮度值的插值计算得到所述背光块单元的所述背光亮度数据。
  6. 根据权利要求1-5任一项所述的图像显示方法，其特征在于，所述背光驱动板包括多个，所述显示屏还包括多个显示子区域，每个所述显示子区域对应多个所述背光块单元，每个所述显示子区域对应设置有一个所述背光驱动板，所述将所述第N+1帧待显示图像和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板包括：
    将所述背光亮度数据分别同步发送至所述多个背光驱动板。
  7. 根据权利要求6所述的图像显示方法，其特征在于，所述图像显示方法还包括：控制所述背光驱动板根据所述背光亮度数据逐行扫描以驱动所述显示子区域对应的多个所述背光块单元。
  8. 根据权利要求1-7任一项所述的图像显示方法，其特征在于，所述显示屏包括多个像素单元，所述像素单元与所述第N+1帧待显示图像的像素点对应，图像显示方法还包括：
    控制所述显示屏逐行扫描以驱动多个所述像素单元显示所述第N+1帧待显示图像。
  9. 一种图像处理装置，其特征在于，包括：
    获取模块，用于在接收到第N帧的同步信号时，获取第N+1帧待显示图像并得到所述第N+1帧待显示图像中像素点的像素数据；
    计算模块，用于通过背光算法根据所述像素数据计算显示屏的背光亮度数据；和
    发送模块，用于在接收到第N+1帧的所述同步信号后，将所述第N+1帧待显示图像和所述背光亮度数据分别同步发送至所述显示屏和背光驱动板。
  10. 一种电子设备，其特征在于，包括：
    一个或多个处理器、存储器；和
    一个或多个程序，其中所述一个或多个程序被存储在所述存储器中，并且被所述一个或多个处理器执行，所述程序包括用于执行根据权利要求1-8任意一项所述的图像 显示方法的指令。
  11. 根据权利要求10所述的电子设备，其特征在于，所述电子设备还包括显示屏，所述显示屏包括显示面板和背光模组，所述显示面板与所述背光模组对应设置，所述显示面板包括多个显示子区域，所述背光模组包括多个背光块单元，每个所述显示子区域对应多个所述背光块单元。
  12. 根据权利要求11所述的电子设备，其特征在于，所述电子设备还包括多个驱动背光板，每个所述驱动板逐行扫描以驱动一个所述显示子区域对应的多个所述背光块单元。
  13. 一种计算机程序的非易失性计算机可读存储介质，其特征在于，当所述计算机程序被一个或多个处理器执行时，使得所述处理器执行权利要求1-8中任一项所述的图像显示方法。
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