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 PDFInfo
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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
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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
- G09G3/36—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
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- 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
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- G—PHYSICS
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
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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.
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Abstract
Description
Claims (13)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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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