WO2024152153A1 - 显示装置的补偿设备、方法、显示装置及计算机存储介质 - Google Patents
显示装置的补偿设备、方法、显示装置及计算机存储介质 Download PDFInfo
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- WO2024152153A1 WO2024152153A1 PCT/CN2023/072372 CN2023072372W WO2024152153A1 WO 2024152153 A1 WO2024152153 A1 WO 2024152153A1 CN 2023072372 W CN2023072372 W CN 2023072372W WO 2024152153 A1 WO2024152153 A1 WO 2024152153A1
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
- G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
-
- 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
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20021—Dividing image into blocks, subimages or windows
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30168—Image quality inspection
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- 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
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
Definitions
- the present application relates to the field of display technology, and in particular to a compensation device and method for a display device, a display device and a computer storage medium.
- some areas in the picture may display abnormalities (Mura) due to various reasons, which requires compensation of the display device to reduce the impact of the display abnormalities.
- Mura abnormalities
- a current compensation device for a display device includes a camera and a processor.
- the camera captures a pure color picture displayed by the display device to obtain a captured image.
- the processor is used to obtain the average brightness of the central area of the captured image and compensate various areas of the display screen of the display device based on the average brightness.
- the embodiments of the present application provide a compensation device, method, display device and computer storage medium for a display device.
- the technical solution is as follows:
- a compensation device for a display device comprising an image acquisition component and a control component;
- the image acquisition component is used to acquire a first image when the display device displays a picture of a first color, and the display device includes a sub-pixel for emitting a light beam of the first color;
- the control component is used to determine a first reference area in the first image based on a position of a first area to be compensated in the first image in a first direction, wherein the position of the first reference area in the first direction is the same as that of the first area to be compensated, and the first reference area is larger than the first area to be compensated;
- the control component is used to determine compensation data of the first area to be compensated based on the average brightness of the first reference area and the average brightness of the first area to be compensated.
- the first image is rectangular, and at least one of two opposite edges of the first image is The location of at least one edge includes a display abnormal area, and the first direction is a direction perpendicular to the two opposite edges.
- control component is further used to:
- the first reference area is determined by taking the first coordinates as the center coordinates of the first reference area in the first direction, the first reference area has a preset size, and the specified distance is half of the length of the first reference area of the preset size in the first direction;
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in a second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- control component is further used to:
- the first image includes a plurality of strip areas arranged along the first direction, each of the strip areas having a reference area;
- a reference area in the strip area where the first area to be compensated is located is determined as the first reference area.
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in a second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- control component is further used to:
- a first reference area in the first image is determined, the second direction is a direction perpendicular to the first direction, and the position of the first reference area in the first direction and the second direction is the same as that of the first area to be compensated.
- control component is further used to:
- a reference area in the first image whose center is closest to the first area to be compensated and has a preset size is determined as the first reference area, and the preset size is a preset size of the first reference area.
- control component is further used to:
- a block area where the first area to be compensated is located is determined as the first reference area.
- a length of the first reference area in the first direction ranges from a/10 to a/5, where a is a length of the first image in the first direction.
- a length of the first reference area in the second direction ranges from b/10 to b/5, b is a length of the first image in the second direction, and the second direction is a direction perpendicular to the first direction.
- a display device comprising: a display panel and a control component;
- the display panel includes a sub-pixel for emitting a light beam of a first color
- the control component is used to obtain compensation data of a first area to be compensated, wherein the compensation data is obtained by obtaining a first image when the display device displays a first color image, determining a first reference area in the first image based on a position of the first area to be compensated in a first direction in the first image, and compensation data determined based on a brightness average of the first reference area and a brightness average of the first area to be compensated, the first reference area is located at the same position as the first area to be compensated in the first direction, and the first reference area is larger than the first area to be compensated;
- the control component is used to compensate the first to-be-compensated area of the display image of the display panel based on the compensation data.
- a compensation method for a display device comprising:
- the compensation data of the first area to be compensated is determined based on the average brightness value of the first reference area and the average brightness value of the first area to be compensated.
- the first image is rectangular, and at least one of two opposite edges of the first image includes a display abnormality area at a location thereof, and the first direction is a direction perpendicular to the two opposite edges.
- determining the first reference area in the first image based on the position of the first area to be compensated in the first image in the first direction includes:
- the first reference area is determined by taking the first coordinates as the center coordinates of the first reference area in the first direction, the first reference area has a preset size, and the specified distance is half of the length of the first reference area of the preset size in the first direction;
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in a second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- determining the first reference area in the first image based on the position of the first area to be compensated in the first image in the first direction includes:
- the first image includes a plurality of strip areas arranged along the first direction, each of the strip areas having a reference area;
- a reference area in the strip area where the first area to be compensated is located is determined as the first reference area.
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in a second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- determining the first reference area in the first image based on the position of the first area to be compensated in the first image in the first direction includes:
- a first reference area in the first image is determined, the second direction is a direction perpendicular to the first direction, and the position of the first reference area in the first direction and the second direction is the same as that of the first area to be compensated.
- determining a first reference area in the first image based on a position of the first area to be compensated in the first direction and the second direction includes:
- a reference area in the first image plate whose center is closest to the first area to be compensated and has a preset size is determined as the first reference area, and the preset size is a preset size of the first reference area.
- determining a first reference area in the first image based on a position of the first area to be compensated in the first direction and the second direction includes:
- a block area where the first area to be compensated is located is determined as the first reference area.
- a length of the first reference area in the first direction ranges from a/10 to a/5, where a is a length of the first image in the first direction.
- a length of the first reference area in the second direction ranges from b/10 to b/5, b is a length of the first image in the second direction, and the second direction is a direction perpendicular to the first direction.
- a compensation device for a display device comprising a processor and a memory, the memory storing at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the at least one program, the code set or the instruction set being loaded and executed by the processor to implement a compensation method for the display device as described above.
- a non-volatile computer storage medium wherein at least one instruction, at least one program, a code set or an instruction set is stored in the computer storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the compensation method of the display device as described above.
- a computer program product or a computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium.
- the processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the above-mentioned various optional implementations.
- the control component determines the position of the first area to be compensated in the first direction during image acquisition.
- the component obtains the first reference area in the first image, and then the control component can determine the compensation data of the first area to be compensated based on the brightness average of the first reference area and the brightness average of the first area to be compensated.
- the subsequent display device can compensate the first area to be compensated based on the compensation data when displaying. Since the position of the first reference area in the first direction is the same as that of the first area to be compensated, the position of the first reference area can change with the position of the first area to be compensated, thereby improving the flexibility of the compensation device.
- the position of the first reference area referred to is related to the position of the first area to be compensated. That is, when compensating the first areas to be compensated at different positions, the brightness mean of the first reference area referred to may also be different, and the brightness mean is related to the position of the first area to be compensated, thereby improving the correlation between the compensation data and the first area to be compensated.
- FIG1 is a schematic diagram of a display screen of a display device
- FIG2 is a schematic diagram of a captured image
- FIG3 is a schematic diagram of another method of capturing an image
- FIG4 is a schematic diagram of the structure of a compensation device for a display device shown in an embodiment of the present application.
- FIG5 is a schematic diagram of a first image in an embodiment of the present application.
- FIG6 is a schematic diagram of a display device displaying a red image
- FIG. 7 is a schematic diagram of a display device displaying a white image
- FIG8 is a schematic diagram of another first image in an embodiment of the present application.
- FIG9 is a schematic diagram of another first image in an embodiment of the present application.
- FIG10 is a schematic diagram of another first image in an embodiment of the present application.
- FIG11 is a schematic diagram of another first image in an embodiment of the present application.
- FIG12 is a schematic diagram of another first image in an embodiment of the present application.
- FIG13 is a schematic diagram of another first image in an embodiment of the present application.
- FIG14 is a schematic diagram of another first image in an embodiment of the present application.
- FIG15 is a schematic diagram of another first image in an embodiment of the present application.
- FIG16 is a schematic diagram of another first image in an embodiment of the present application.
- FIG17 is a schematic diagram of the structure of a display device provided in an embodiment of the present application.
- FIG. 18 is a flow chart of a method for providing a compensation method for a display device.
- FIG1 is a schematic diagram of a display screen of a display device
- the display screen is a white screen, but the white screen includes multiple display abnormal areas m1.
- the display device needs to be compensated to reduce the impact of the display abnormality.
- the display device may include sub-pixels of multiple colors, such as red sub-pixels, green sub-pixels, and blue sub-pixels.
- the current compensation device of the display device will compensate for pictures of different colors respectively when performing compensation. After the pictures of each color are compensated, the impact of abnormal display effects can be reduced.
- the display device when compensating for a red screen, may be controlled to display a red screen, and the red screen may be photographed by a camera in the compensation device of the display device to obtain a photographed image.
- FIG. 2 is a schematic diagram of a photographed image. It can be seen from FIG. 2 that, in addition to several display abnormality areas m2 similar to those in FIG. 1, the left and right edges of the photographed image also have abnormal areas m3 with color cast.
- the processor in the compensation device of the display device may obtain the average brightness of the central area 311 of the photographed image, and use the average brightness to determine the compensation data of all areas to be compensated on the display screen of the display device (each area to be compensated may be a small area in the display screen).
- the compensation data may be input into the display device.
- the photographed image of the red screen may be shown in FIG. 3.
- FIG. 3 is a schematic diagram of another photographed image. It can be seen that after compensation, the brightness of each area in the image 31 is basically the same. However, in this compensation method, the brightness of the fixed central area in the display screen is always used as the compensation data. The compensation data is determined by the average value of the degree, which makes the flexibility of this method poor. In addition, if there is a large display abnormal area in the central area, the compensation effect of the entire display screen will be poor.
- the embodiments of the present application provide a compensation device and method for a display device, a display device, and a computer storage medium, which can solve some problems existing in the above-mentioned related technologies.
- FIG 4 is a structural schematic diagram of a compensation device of a display device shown in an embodiment of the present application
- Figure 5 is a schematic diagram of a first image in an embodiment of the present application. Please refer to Figures 4 and 5.
- the compensation device 40 of the display device includes an image acquisition component 41 and a control component 42.
- the image acquisition component 41 is used to acquire a first image when the display device displays a picture of a first color, and the display device includes sub-pixels for emitting light beams of the first color.
- the control component 42 is used to determine the first reference area q2 in the first image based on the position of the first area to be compensated q1 in the first image in the first direction f1, the position of the first reference area q2 in the first direction f1 is the same as that of the first area to be compensated q1, and the first reference area q2 is larger than the first area to be compensated q1.
- the control component 42 is used to determine compensation data of the first area to be compensated based on the average brightness value of the first reference area q2 and the average brightness value of the first area to be compensated q1.
- the compensation data determined by the control component 42 can be used to enable the display device to adjust the area corresponding to the first area to be compensated in the display image so that the brightness of the first area to be compensated is consistent with the average brightness of the first reference area.
- the first area to be compensated q1 can be any area in the first image.
- the control component 42 divides part or all of the area in the first image into multiple first areas to be compensated in turn, and determines the compensation data of each first area to be compensated in the above manner.
- the image acquisition component 41 may include a camera, which can capture a side of the display device displaying an image and transmit the captured image to the control component 42.
- the image acquisition component 41 can also acquire the first image in other ways, such as through data transmission, etc., which is not limited in the embodiment of the present application.
- the compensation device of the display device determines the first reference area in the first image acquired by the image acquisition component based on the position of the first area to be compensated in the first direction through the control component, and then the control component can determine the compensation data of the first area to be compensated based on the brightness average of the first reference area and the brightness average of the first area to be compensated.
- the subsequent display device can compensate the first area to be compensated based on the compensation data when displaying. Since the first reference area is in the first direction, the compensation data of the first area to be compensated can be compensated based on the compensation data.
- the position in the direction is the same as that of the first area to be compensated, so the position of the first reference area can change with the position of the first area to be compensated, thereby improving the flexibility of the compensation device.
- the position of the first reference area referred to is related to the position of the first area to be compensated. That is, when compensating the first areas to be compensated at different positions, the brightness mean of the first reference area referred to may also be different, and the brightness mean is related to the position of the first area to be compensated, thereby improving the correlation between the compensation data and the first area to be compensated.
- the first image may be an image obtained by shooting a display screen of a display device displaying a first color.
- the first image may have the same shape as the display screen of the display device (the shapes of the first image and the display screen may be made consistent by controlling the shooting angle or cropping).
- each position (or area) in the first image and each position (or area) in the display screen also correspond to each position (or area) in the display screen.
- the first image and the display screen may have the same coordinate system. After the coordinates of a position are determined in the first image, the corresponding position on the display screen may be determined based on the coordinates.
- the compensation device of the above-mentioned display device obtains the compensation data of the first area to be compensated
- the compensation data can be written into the display device, and the display device can compensate the area corresponding to the first area to be compensated in the display screen based on the compensation data.
- the position of the first reference area q2 described in the embodiment of the present application in the first direction f1 is the same as that of the first area to be compensated q1, which may refer to the area defined by two extreme points in the first area to be compensated q1 that are at least located in the first direction f1 of the first reference area q2.
- the two extreme points may refer to the rightmost point and the leftmost point of the first reference area q2 in the first direction f1
- the area defined by the two extreme points may refer to the area defined by two lines that pass through the two extreme points and are perpendicular to the first direction f1.
- the brightness mean of a certain area described in the embodiment of the present application may refer to the average value of the brightness of all pixels in the area, and the average value may be an arithmetic mean, a geometric mean or other types of average values, and the embodiment of the present application is not limited to this.
- the display device may include a plurality of columns of pixels arranged horizontally and vertically, and each pixel may include R (red sub-pixel), G (green sub-pixel) and B (blue sub-pixel).
- R red sub-pixel
- G green sub-pixel
- B blue sub-pixel
- FIG7 is a schematic diagram of a display device displaying a white image
- the display device displays a white image (the display device displays a white image by essentially lighting up the red sub-pixels, the green sub-pixels, and the blue sub-pixels at the same time) 71
- the same source wiring connected to the red sub-pixels and the blue sub-pixels will switch back and forth to charge the red sub-pixels and the blue sub-pixels, and the charging time can basically meet the requirements, and thus when displaying a white image, there will be no display abnormalities such as color cast at the edges.
- FIG8 is a schematic diagram of a display device displaying a white image after compensation, in which there is a color cast abnormality area 81 at the edge.
- the compensation device of the display device provided in the embodiment of the present application can solve this problem.
- the first image is rectangular, and at least one of the two opposite edges (b1 and b2) of the first image includes a display abnormality region q3 at a position where the edge is located (FIG. 5 shows the situation where both edges b1 and b2 include display abnormality regions, but the embodiment of the present application is not limited to this).
- the first image also includes multiple other display abnormality regions q4, and the first direction f1 is a direction perpendicular to the two opposite edges (b1 and b2).
- the control component determines the compensation data of the first area to be compensated that overlaps with the display abnormality region q3, it will determine the compensation data based on the brightness mean of the first reference area q2 that overlaps with the display abnormality region q3, so that the brightness of the display abnormality q3 of the edge can be adjusted without reducing the influence of other display abnormality regions q4, and when the display device displays a white picture, there will be no problem of edge color cast.
- the compensation device of the display device provided in the embodiment of the present application can solve the problem of color cast (such as reddish or greenish, etc.) on the left and right sides of the display screen of the display device.
- the compensation device of the display device provided in the embodiment of the present application can solve the problem of color cast on the upper and lower sides of the display screen of the display device.
- control component can determine the first reference area in at least four ways, which are described below respectively.
- the first method please refer to FIG. 8 , which is a schematic diagram of another first image in an embodiment of the present application.
- the control component is further used for:
- a first coordinate of the first area to be compensated q1 in the first direction f1 is determined, and a coordinate axis of a coordinate system where the first coordinate is located is parallel to the first direction f1.
- the first reference area q2 is determined by taking the first coordinate as the center coordinate of the first reference area q2 in the first direction f1.
- the first reference area q2 may have a preset size (that is, a pre-set size), and the specified distance s2 is half of the length of the first reference area q2 of the preset size in the first direction f1.
- z1 in FIG8 may be the geometric center of the first reference area q2.
- Figure 9 is a schematic diagram of another first image in an embodiment of the present application.
- this method is a method for determining the first reference area q2.
- the determined first reference area q2 can be considered to be the area corresponding to the first area to be compensated q1, and each first area to be compensated q1 can correspond to a first reference area q2.
- the length of the first reference area q2 in the first direction f1 ranges from a/10 to a/5, where a is the length of the first image in the first direction f1.
- the first reference area q2 can provide a reference for the brightness of the first area to be compensated q1 at an appropriate size.
- the center z1 of the first reference area q2 is located at the center of the first image in the second direction f2, and the second direction f2 is a direction perpendicular to the first direction f1. Since the probability of abnormality at the edge of the display screen may be greater than the probability of abnormality at the center, when the center z1 of the first reference area q2 is located at the center of the first image in the second direction f2, the compensation effect of the compensation data determined based on the brightness mean value of the first reference area q2 can be improved, thereby improving the display effect of the display device.
- the length of the first reference area q2 in the second direction f2 ranges from b/10 to b/5, where b is the length of the first image in the second direction f2, and the second direction f2 is a direction perpendicular to the first direction f1.
- the first reference area q2 can be the first area to be compensated at a suitable size.
- the brightness of q1 provides a reference.
- the center of the first reference area can also be at other positions.
- Figure 10 is a schematic diagram of another first image in the embodiment of the present application, wherein the center z1 of the first reference area q2 is located between the center z2 of the first image (the center can be the geometric center or center of gravity of the first image) and the first area to be compensated q1 in the second direction f2, and the second direction f2 is a direction perpendicular to the first direction f1.
- FIG. 11 is a schematic diagram of another first image in an embodiment of the present application, wherein the center z1 of the first reference area q2 is located on the side of the center of the first image away from the first area to be compensated q1 in the second direction f2 .
- FIG. 12 is a schematic diagram of another first image in an embodiment of the present application.
- the control component is further used for:
- the strip area tq where the first area to be compensated q1 is located is determined.
- the first image includes a plurality of strip areas tq arranged along the first direction f1, and each strip area tq has a reference area cq.
- the reference area cq in the strip area tq where the first area to be compensated q1 is located is determined as the first reference area q2.
- control component predetermines multiple strip areas tq and a reference area cq in each strip area tq in the first image, and then the first reference area q2 can be determined according to the strip area tq where the first area to be compensated q1 is located.
- the first reference area may also be located at various positions in the second direction, for example, the center of the first reference area is located at the center of the first image in the second direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in the second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- the third method please refer to FIG. 13 , which is a schematic diagram of another first image in an embodiment of the present application.
- the control component is further used for:
- the first reference area q2 in the first image, the second direction f2 is a direction perpendicular to the first direction f1, and the position of the first reference area q2 in the first direction f1 and the second direction f2 is the same as the first area to be compensated q1.
- the first reference area q2 can be an area that always surrounds the first area to be compensated.
- the first reference area q2 determined in this way can be used to solve the problem of color deviation and brightness difference at the four edges of the display screen of the display device. Such problems may occur in large-size display devices, and the compensation device of the display device provided in the embodiment of the present application can be used to solve such problems.
- control component is further configured to:
- the first coordinate may be an x-coordinate and the second coordinate may be a y-coordinate
- one coordinate axis (for example, the x-axis) of the coordinate system where the first coordinate and the second coordinate are located is parallel to the first direction f1
- the other coordinate axis (for example, the y-axis) is parallel to the second direction f2.
- a reference area in the first image whose center is closest to the first area to be compensated and has a preset size is determined as the first reference area q2, where the preset size is a preset size of the first reference area q2.
- the reference area whose center is closest to the first area to be compensated q1 and has a preset size may include two cases.
- Figure 14 is a schematic diagram of another first image in an embodiment of the present application, wherein the distance between the first area to be compensated q1 and the two sides (i.e., the left and right sides) of the first image in the first direction f1 is greater than or equal to half of the length of the first reference area q2 in the first direction f1, and the distance between the first area to be compensated q1 and the two sides (i.e., the upper and lower sides) of the first image in the second direction f2 is greater than or equal to half of the length of the first reference area q2 in the first direction f1.
- the position of the first reference area q2 (the position of the first reference area q2 may refer to the position of the geometric center z1 of the first reference area q2) coincides with the center z3 of the first area to be compensated q1 (the distance between the center z1 of the first reference area q2 and the first area to be compensated q1 is zero).
- Figure 15 is a schematic diagram of another first image in an embodiment of the present application.
- the distance between the first area to be compensated q1 and an edge of the first image in the first direction f1 is less than half of the length of the first reference area q2 in the first direction f1, and/or the distance between the first area to be compensated q1 and an edge of the first image in the second direction f2 is less than half of the length of the first reference area q2 in the first direction f1.
- the center z1 of the first reference area q2 can be as close as possible to the center z3 of the first area to be compensated q1.
- FIG. 16 is a schematic diagram of another first image in an embodiment of the present application.
- Figure, control components are also used to:
- the coordinate of the first area to be compensated q1 may refer to the coordinate of a point in the first area to be compensated q1, which may be the center z3, or a point at another position (such as a vertex of an edge, etc.).
- the block area kq where the first area to be compensated q1 is located is determined, and the first image includes a plurality of block areas kq arranged horizontally and vertically along the first direction f1 and the second direction f2.
- the block region kq where the first to-be-compensated region q1 is located is determined as the first reference region q2.
- this method is to pre-divide the first image into a plurality of block areas kq, and then determine the block area kq where the first area to be compensated q1 is located based on the horizontal and vertical coordinates of the first area to be compensated q1, and then determine the block area kq where the first area to be compensated q1 is located as the first reference area q2.
- This solution can be similar to the third solution, and is used to solve the problem of color deviation and brightness difference at the four edges of the display screen of the display device.
- the display screen displayed by the display device may include multiple first areas to be compensated.
- the control component may determine the first reference area corresponding to the multiple first areas to be compensated by at least one of the above methods.
- the compensation device of the display device determines the first reference area in the first image acquired by the image acquisition component based on the position of the first area to be compensated in the first direction through the control component. Then, the control component can determine the compensation data of the first area to be compensated based on the brightness average of the first reference area and the brightness average of the first area to be compensated. The subsequent display device can compensate the first area to be compensated based on the compensation data when displaying. Since the position of the first reference area in the first direction is the same as that of the first area to be compensated, the position of the first reference area can change with the position of the first area to be compensated, thereby improving the flexibility of the compensation device.
- the compensation device of the display device provided in the embodiment of the present application can be used to compensate for display devices with high refresh rates (such as display devices with refresh rates greater than or equal to 60 Hz) to avoid display abnormalities such as color cast in display devices with high refresh rates.
- FIG. 17 is a schematic diagram of the structure of a display device provided in an embodiment of the present application.
- the display device 170 includes: a display panel 171 and a control component 172 .
- the display panel 171 includes sub-pixels for emitting light beams of a first color.
- the control component 172 is used to obtain compensation data of the first area to be compensated, the compensation data is obtained after the display device displays a first color screen, based on the position of the first area to be compensated in the first image in the first direction, determine the first reference area in the first image, and determine the compensation data based on the brightness average of the first reference area and the brightness average of the first area to be compensated, the position of the first reference area in the first direction is the same as the first area to be compensated, and the first reference area is larger than the first area to be compensated;
- the control component 172 is used to compensate the first to-be-compensated area of the display image of the display panel based on the compensation data.
- the display device compensates the first area to be compensated of the display screen of the display panel based on the compensation data, and the compensation data is determined based on the average brightness of the first reference area and the average brightness of the first area to be compensated. Since the position of the first reference area in the first direction is the same as that of the first area to be compensated, the position of the first reference area can change with the position of the first area to be compensated, which can improve the flexibility of the display device in compensating the first area to be compensated.
- the problem of color cast on two opposite edges of the display screen is caused, on the one hand, by the inconsistency of the lengths of the wirings at different positions of the fan-out area, which in turn leads to different loads on different wirings.
- the wirings in the fan-out area can be adjusted to reduce the load gap between the multiple wirings in the fan-out area and make the load of the source wiring uniform.
- capacitor compensation can be added to ensure the charging effect for the red sub-pixel and the blue sub-pixel.
- FIG. 18 is a flow chart of a method for providing a compensation method for a display device.
- the method can be applied to the compensation device for the display device provided in the above embodiment.
- the method may include the following steps:
- Step 1801 Acquire a first image when a display device displays a picture of a first color, wherein the display device includes a sub-pixel for emitting a light beam of the first color.
- Step 1802 determine a first reference area in the first image based on the position of the first area to be compensated in the first direction.
- the position of the first reference area in the first direction is the same as that of the first area to be compensated, and the first reference area is larger than the first area to be compensated.
- Step 1803 Determine compensation data of the first area to be compensated based on the average brightness value of the first reference area and the average brightness value of the first area to be compensated.
- the first image is rectangular, and a position where at least one of two opposite edges of the first image is located includes a display abnormality area, and the first direction is a direction perpendicular to the two opposite edges.
- the above step 1801 may include:
- the first reference area is determined by taking the first coordinate as the center coordinate of the first reference area in the first direction, the first reference area has a preset size, and the specified distance is half of the length of the first reference area of the preset size in the first direction;
- a region that is aligned with the edge and has a preset size is determined as the first reference region.
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in the second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- the above step 1801 may include:
- the first image includes a plurality of strip areas arranged along the first direction, each strip area having a reference area;
- a reference area in the strip area where the first area to be compensated is located is determined as a first reference area.
- the center of the first reference area is located at the center of the first image in a second direction, and the second direction is a direction perpendicular to the first direction.
- the center of the first reference area is located between the center of the first image and the first area to be compensated in the second direction, and the second direction is a direction perpendicular to the first direction;
- the center of the first reference area is located in the second direction on a side of the center of the first image away from the first area to be compensated.
- the above step 1801 may include:
- a first reference area in the first image is determined
- the second direction is a direction perpendicular to the first direction
- the first reference area in the first image is determined.
- the direction and the position in the second direction are the same as those of the first area to be compensated.
- the step of determining the first reference area in the first image based on the position of the first area to be compensated in the first direction and the second direction may include:
- a reference area in the first image plate whose center is closest to the first area to be compensated and has a preset size is determined as the first reference area, and the preset size is a preset size of the first reference area.
- the step of determining the first reference area in the first image based on the position of the first area to be compensated in the first direction and the second direction may include:
- the first image includes a plurality of block areas arranged horizontally and vertically along the first direction and the second direction;
- the block area where the first area to be compensated is located is determined as the first reference area.
- the length of the first reference area in the first direction ranges from a/10 to a/5, where a is the length of the first image in the first direction.
- the length of the first reference area in the second direction ranges from b/10 to b/5
- b is the length of the first image in the second direction
- the second direction is a direction perpendicular to the first direction.
- the compensation method for a display device determines a first reference area in the acquired first image based on the position of the first area to be compensated in the first direction. Then, the control component can determine compensation data of the first area to be compensated based on the average brightness of the first reference area and the average brightness of the first area to be compensated. The subsequent display device can compensate for the first area to be compensated based on the compensation data during display. Since the position of the first reference area in the first direction is the same as that of the first area to be compensated, the position of the first reference area can vary with the position of the first area to be compensated, thereby improving the flexibility of the compensation device.
- the compensation device of the display device provided in the present application refers to a first reference area whose position is related to the position of the first area to be compensated when determining the compensation data, that is, when compensating the first area to be compensated at a different position, the referenced first reference area is related to the position of the first area to be compensated.
- the average brightness value of a reference area may also be different, and the average brightness value is related to the position of the first area to be compensated, thereby improving the correlation between the compensation data and the first area to be compensated.
- a compensation device for a display device comprising a processor and a memory, the memory storing at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, at least one program, a code set or an instruction set being loaded and executed by the processor to implement a compensation method for the display device as described above.
- a non-volatile computer storage medium in which at least one instruction, at least one program, code set or instruction set is stored, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the compensation method of the display device as described above.
- a computer program product or a computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium.
- the processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the above-mentioned various optional implementations.
- a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
- the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
- At least one of A and B is only a description of the association relationship of the associated objects, indicating that there may be three relationships.
- at least one of A and B can be represented by: A exists alone, A and B exist at the same time, and B exists alone.
- at least one of A, B, and C means that there may be seven relationships, which can be represented by: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, C and B exist at the same time, and A, B, and C exist at the same time.
- A, B, C, and D means that there may be fifteen relationships, which can be represented by: A exists alone, B exists alone, C exists alone, D exists alone, A and B exist at the same time, A and C exist at the same time, A and D exist at the same time, C and B exist at the same time, D and B exist at the same time, C and D exist at the same time, A, B, and C exist at the same time, A, B, and D exist at the same time, A, C, and D exist at the same time, B, C, and D exist at the same time, and A, B, C, and D exist at the same time, and A, B, C, and D exist at the same time.
- the disclosed devices and methods can be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
- Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
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Abstract
Description
Claims (20)
- 一种显示装置的补偿设备,其特征在于,所述显示装置的补偿设备包括图像获取组件以及控制组件;所述图像获取组件用于获取所述显示装置显示第一色的画面时的第一图像,所述显示装置中包括用于发出所述第一色的光束的子像素;所述控制组件用于基于所述第一图像中第一待补偿区域在第一方向上的位置,确定在所述第一图像中的第一参考区域,所述第一参考区域在所述第一方向上的位置与所述第一待补偿区域相同,所述第一参考区域大于所述第一待补偿区域;所述控制组件用于基于所述第一参考区域的亮度均值以及所述第一待补偿区域的亮度均值确定所述第一待补偿区域的补偿数据。
- 根据权利要求1所述的显示装置的补偿设备,其特征在于,所述第一图像呈矩形,且所述第一图像的两个相对的边缘中的至少一个边缘所在位置处包括显示异常区域,所述第一方向为与所述两个相对的边缘垂直的方向。
- 根据权利要求1所述的显示装置的补偿设备,其特征在于,所述控制组件,还用于:确定所述第一待补偿区域在所述第一方向上的第一坐标,所述第一坐标所在坐标系的一个坐标轴与所述第一方向平行;当所述第一待补偿区域在所述第一方向上与所述第一图像的边缘之间的距离大于或者等于指定距离时,以所述第一坐标作为所述第一参考区域在所述第一方向上的中心坐标,确定所述第一参考区域,所述第一参考区域具有预设尺寸,所述指定距离为所述预设尺寸的第一参考区域在所述第一方向上长度的二分之一;当所述第一待补偿区域在所述第一方向上与所述第一图像的边缘之间的距离小所述指定距离时,将与所述边缘贴合且具有所述预设尺寸的区域确定为所述第一参考区域。
- 根据权利要求3所述的显示装置的补偿设备,其特征在于,所述第一参考 区域的中心在第二方向上位于所述第一图像的中心,所述第二方向为与所述第一方向垂直的方向。
- 根据权利要求3所述的显示装置的补偿设备,其特征在于,所述第一参考区域的中心在第二方向上位于所述第一图像的中心和所述第一待补偿区域之间,所述第二方向为与所述第一方向垂直的方向;或者,所述第一参考区域的中心在所述第二方向上位于所述第一图像的中心远离所述第一待补偿区域的一侧。
- 根据权利要求1所述的显示装置的补偿设备,其特征在于,所述控制组件,还用于:基于所述第一待补偿区域在所述第一方向上的位置,确定所述第一待补偿区域所在的条状区域,所述第一图像包括沿所述第一方向排布的多个条状区域,每个所述条状区域中具有一个参考区域;将所述第一待补偿区域所在的条状区域中的参考区域确定为所述第一参考区域。
- 根据权利要求6所述的显示装置的补偿设备,其特征在于,所述第一参考区域的中心在第二方向上位于所述第一图像的中心,所述第二方向为与所述第一方向垂直的方向。
- 根据权利要求6所述的显示装置的补偿设备,其特征在于,所述第一参考区域的中心在第二方向上位于所述第一图像的中心和所述第一待补偿区域之间,所述第二方向为与所述第一方向垂直的方向;或者,所述第一参考区域的中心在所述第二方向上位于所述第一图像的中心远离所述第一待补偿区域的一侧。
- 根据权利要求1所述的显示装置的补偿设备,其特征在于,所述控制组件,还用于:基于所述第一待补偿区域在所述第一方向以及第二方向上的位置,确定在 所述第一图像中的第一参考区域,所述第二方向为与所述第一方向垂直的方向,所述第一参考区域在所述第一方向以及所述第二方向上的位置与所述第一待补偿区域相同。
- 根据权利要求9所述的显示装置的补偿设备,其特征在于,所述控制组件,还用于:确定所述第一待补偿区域在所述第一方向上的第一坐标以及在所述第二方向上的第二坐标,所述第一坐标以及所述第二坐标所在坐标系的一个坐标轴与所述第一方向平行,另一个坐标轴与所述第二方向平行;基于所述第一坐标以及所述第二坐标,将所述第一图像中,中心与所述第一待补偿区域最近且具有预设尺寸的参考区域确定为所述第一参考区域,所述预设尺寸为预先设置的所述第一参考区域的尺寸。
- 根据权利要求9所述的显示装置的补偿设备,其特征在于,所述控制组件,还用于:确定所述第一待补偿区域在所述第一方向上的第一坐标以及在所述第二方向上的第二坐标,所述第一坐标以及所述第二坐标所在坐标系的一个坐标轴与所述第一方向平行,另一个坐标轴与所述第二方向平行;基于所述第一坐标以及所述第二坐标,确定所述第一待补偿区域所在的块状区域,所述第一图像包括沿所述第一方向以及所述第二方向横纵排布的多个块状区域;将所述第一待补偿区域所在的块状区域确定为所述第一参考区域。
- 根据权利要求1至11任一所述的显示装置的补偿设备,其特征在于,所述第一参考区域在所述第一方向上的长度范围为a/10至a/5,所述a为所述第一图像在所述第一方向上的长度。
- 根据权利要求1至11任一所述的显示装置的补偿设备,其特征在于,所述第一参考区域在第二方向上的长度范围为b/10至b/5,所述b为所述第一图像在所述第二方向上的长度,所述第二方向为与所述第一方向垂直的方向。
- 一种显示装置,其特征在于,所述显示装置包括:显示面板以及控制组件;所述显示面板中包括用于发出第一色的光束的子像素;所述控制组件用于获取第一待补偿区域的补偿数据,所述补偿数据是获取所述显示装置显示第一色的画面时的第一图像后,基于所述第一图像中第一待补偿区域在第一方向上的位置,确定在所述第一图像中的第一参考区域,并基于所述第一参考区域的亮度均值以及所述第一待补偿区域的亮度均值确定的补偿数据,所述第一参考区域在所述第一方向上的位置与所述第一待补偿区域相同,所述第一参考区域大于所述第一待补偿区域;所述控制组件用于基于所述补偿数据对所述显示面板的显示画面的所述第一待补偿区域进行补偿。
- 一种显示装置的补偿方法,其特征在于,所述方法包括:获取所述显示装置显示第一色的画面时的第一图像,所述显示装置中包括用于发出所述第一色的光束的子像素;基于所述第一图像中第一待补偿区域在第一方向上的位置,确定在所述第一图像中的第一参考区域,所述第一参考区域在所述第一方向上的位置与所述第一待补偿区域相同,所述第一参考区域大于所述第一待补偿区域;基于所述第一参考区域的亮度均值以及所述第一待补偿区域的亮度均值确定所述第一待补偿区域的补偿数据。
- 根据权利要求15所述的方法,其特征在于,所述第一图像呈矩形,且所述第一图像的两个相对的边缘中的至少一个边缘所在位置处包括显示异常区域,所述第一方向为与所述两个相对的边缘垂直的方向;所述基于所述第一图像中第一待补偿区域在第一方向上的位置,确定在所述第一图像中的第一参考区域,包括:确定所述第一待补偿区域在所述第一方向上的第一坐标,所述第一坐标所在坐标系的一个坐标轴与所述第一方向平行;当所述第一待补偿区域在所述第一方向上与所述第一图像的边缘之间的距 离大于或者等于指定距离时,以所述第一坐标作为所述第一参考区域在所述第一方向上的中心坐标,确定所述第一参考区域,所述第一参考区域具有预设尺寸,所述指定距离为所述预设尺寸的第一参考区域在所述第一方向上长度的二分之一;当所述第一待补偿区域在所述第一方向上与所述第一图像的边缘之间的距离小所述指定距离时,将与所述边缘贴合且具有所述预设尺寸的区域确定为所述第一参考区域。
- 根据权利要求15所述的方法,其特征在于,所述基于所述第一图像中第一待补偿区域在第一方向上的位置,确定在所述第一图像中的第一参考区域,包括:基于所述第一待补偿区域在所述第一方向以及第二方向上的位置,确定在所述第一图像中的第一参考区域,所述第二方向为与所述第一方向垂直的方向,所述第一参考区域在所述第一方向以及所述第二方向上的位置与所述第一待补偿区域相同。
- 根据权利要求17所述的方法,其特征在于,所述基于所述第一待补偿区域在所述第一方向以及第二方向上的位置,确定在所述第一图像中的第一参考区域,包括:确定所述第一待补偿区域在所述第一方向上的第一坐标以及在所述第二方向上的第二坐标,所述第一坐标以及所述第二坐标所在坐标系的一个坐标轴与所述第一方向平行,另一个坐标轴与所述第二方向平行;基于所述第一坐标以及所述第二坐标,将所述第一图像中,中心与所述第一待补偿区域最近且具有预设尺寸的参考区域确定为所述第一参考区域,所述预设尺寸为预先设置的所述第一参考区域的尺寸。
- 一种显示装置的补偿设备,其特征在于,所述显示装置的补偿设备包括处理器和存储器,所述存储器中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如权利要求15至18任一所述的显示装置的补偿方 法。
- 一种非易失性的计算机存储介质,其特征在于,所述计算机存储介质中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由处理器加载并执行以实现如权利要求15至18任一所述的显示装置的补偿方法。
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| US18/287,655 US12586547B2 (en) | 2023-01-16 | 2023-01-16 | Compensation device and method for display apparatus, display apparatus, and computer storage medium |
| PCT/CN2023/072372 WO2024152153A1 (zh) | 2023-01-16 | 2023-01-16 | 显示装置的补偿设备、方法、显示装置及计算机存储介质 |
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