CN108877631B - Mura compensation method and device for display screen, computer equipment and storage medium - Google Patents
Mura compensation method and device for display screen, computer equipment and storage medium Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- 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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- 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
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The invention relates to a Mura compensation method, a Mura compensation device, computer equipment and a storage medium of a display screen, wherein the display screen comprises a main display area and at least one edge area adjacent to the main display area, and the method comprises the following steps: and acquiring brightness data corresponding to the edge area and the main display area respectively, so as to determine compensation data corresponding to the edge area and the main display area respectively according to the brightness data corresponding to the edge area and the main display area respectively and preset target brightness data, and further compensating the edge area and the main display area respectively. Therefore, the technical problem that the display effect is poorer due to the fact that the same compensation is carried out on the display area of the display screen in the same mode in the traditional technology is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a Mura compensation method and apparatus for a display screen, a computer device, and a storage medium.
Background
With the rapid development of video display technology, large-size ultrahigh-resolution and ultra-narrow frame display technology becomes the focus of key competition of panel factories, however, as the size increases, the difficulty of process control of a display screen increases, and the Mura is generated due to the fact that the uniformity of pictures is easily deteriorated due to the manufacturing process control deviation. The Mura refers to a phenomenon of uneven display of a display screen, which is generated due to factors such as process level and raw material purity, and is a common technical problem in the field of display technology.
In the conventional technology, in order to compensate for the Mura phenomenon caused by the defects in the manufacturing process, the brightness of each pixel in the display panel is generally corrected by means of brightness compensation, so as to eliminate the Mura phenomenon.
However, in the edge area of the display screen, the display effect becomes worse after the luminance compensation in the conventional art.
Disclosure of Invention
Based on this, it is necessary to provide a Mura compensation method and apparatus for a display screen, a computer device, and a storage medium, for solving the technical problem in the conventional technology that luminance compensation causes a display effect of an edge area of the display screen to be worse.
A Mura compensation method of a display screen including a main display area and at least one edge area adjacent to the main display area, the method comprising: acquiring brightness data corresponding to the edge area and the main display area respectively; determining compensation data respectively corresponding to the edge area and the main display area according to the brightness data respectively corresponding to the edge area and the main display area and preset target brightness data; and respectively compensating the edge area and the main display area according to the compensation data respectively corresponding to the edge area and the main display area.
In one embodiment, the display area of the display screen is provided with pixels arranged in an array; when the boundary line of the edge area and the main display area extends along the column direction, the number of pixel columns in the edge area is less than or equal to 3; and/or when the boundary line of the edge area and the main display area extends along the row direction, the number of pixel rows in the edge area is less than or equal to 3.
In one embodiment, when an interface line between the edge region and the main display region extends in a column direction, the number of pixel columns in the edge region is 1; and/or when the boundary line of the edge area and the main display area extends along the line direction, the number of pixel lines in the edge area is 1.
In one embodiment, the determining the compensation data corresponding to the edge region according to the brightness data corresponding to the edge region and preset target brightness data includes: when the brightness data corresponding to the edge area and the target brightness data meet preset conditions, adjusting the brightness data of the edge area to be a first preset value; and determining compensation data corresponding to the edge area according to the first preset value.
In one embodiment, the adjusting the brightness data of the edge area to a first preset value includes: adjusting the brightness data of the edge area to be zero; the determining compensation data corresponding to the edge area according to the first preset value includes: and when the brightness data of the edge area is zero, setting the compensation data corresponding to the edge area to be zero.
In one embodiment, the brightness data corresponding to the edge region is zero; determining compensation data corresponding to the edge area according to the brightness data corresponding to the edge area and preset target brightness data, wherein the determining of the compensation data corresponding to the edge area comprises the following steps: and directly setting the compensation data corresponding to the edge area to be zero.
In one embodiment, the determining the compensation data corresponding to the main display area according to the brightness data corresponding to the main display area and preset target brightness data includes: detecting whether the brightness data of the edge area is equal to a first preset value or zero; if so, setting the influence coefficient of the edge area on the main display area to be zero, calculating the difference value between the brightness data corresponding to the main display area and preset target brightness data, and determining the compensation data corresponding to the main display area according to the difference value.
A Mura compensation apparatus for a display screen including a main display area and at least one edge area adjacent to the main display area, the apparatus comprising: the brightness data acquisition module is used for acquiring brightness data corresponding to the edge area and the main display area respectively; the compensation data determining module is used for determining the compensation data respectively corresponding to the edge area and the main display area according to the brightness data respectively corresponding to the edge area and the main display area and preset target brightness data; and the compensation module is used for respectively compensating the edge area and the main display area according to the compensation data respectively corresponding to the edge area and the main display area.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the method of any of the above embodiments when the processor executes the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any of the above embodiments.
According to the Mura compensation method, the Mura compensation device, the computer equipment and the storage medium of the display screen, the display screen comprises a main display area and at least one edge area adjacent to the main display area, and the compensation data respectively corresponding to the edge area and the main display area is determined according to the brightness data respectively corresponding to the edge area and the main display area and the preset target brightness data by acquiring the brightness data respectively corresponding to the edge area and the main display area, so that the edge area and the main display area are respectively compensated. The technical problem that the display effect is poorer due to the fact that the same compensation is carried out on the display area of the display screen in the same mode in the traditional technology is solved.
Drawings
FIG. 1a is a diagram illustrating an exemplary Mura compensation method for a display screen;
FIG. 1b is a schematic flow chart illustrating a Mura compensation method for a display screen according to an embodiment;
FIGS. 1c to 1d are schematic diagrams illustrating display area division of a display screen according to an embodiment;
FIG. 2 is a flowchart illustrating the step S120 according to one embodiment;
FIG. 3 is a flowchart illustrating the step S120 according to one embodiment;
FIG. 4 is a flowchart illustrating the step S120 according to one embodiment;
FIG. 5 is a block diagram of a Mura compensation apparatus for a display screen according to one embodiment;
FIG. 6 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
As described in the background, in the edge area of the display screen, the display effect becomes worse after the brightness compensation. The inventor finds that, in the edge area adjacent to the border of the display screen, if there is a Mura area in the pixels in the edge area due to the individual pixels being dark or not bright at all, the pixels in the edge area are always bright after performing brightness compensation, which affects the display effect and makes it worse. Through further research, the inventor finds that all the Mura regions in the display region, including the Mura region in the edge region, can be detected and compensated in the process of performing corresponding brightness compensation according to the data obtained by shooting by the image acquisition device. In fact, the resolution of the human eye is not sufficient to perceive the Mura regions in the edge regions. The compensation of the Mura region in the edge region instead emphasizes or magnifies the defects in the edge region, resulting in a poorer display effect. The root cause of this problem is that the compensation method in the conventional art does not consider the correctness of actual data, and performs uniform brightness compensation in the same manner for all the Mura areas in the display area of the display screen.
Based on this, the invention provides a Mura compensation method of a display screen, which includes an edge area adjacent to the display area boundary and a main display area except the edge area in the display area, and acquires brightness data corresponding to the edge area and the main display area respectively, so as to determine compensation data corresponding to the edge area and the main display area respectively according to the brightness data corresponding to the edge area and the main display area respectively and preset target brightness data, and further compensate the edge area and the main display area respectively. Therefore, the technical problem that the display effect is poorer due to the fact that the same compensation is carried out on the display area of the display screen in the same mode in the traditional technology is solved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
The Mura compensation method for the display screen can be applied to the application environment shown in FIG. 1 a. Wherein, a connection is established between the data processing device 120 and the image acquisition device 130. The image acquisition device 130 acquires an image of the detection picture 110 displayed on the display screen and extracts corresponding brightness data, then the image acquisition device 120 sends the brightness data of the detection picture to the data processing device 120, and the data processing device 130 processes the brightness data of the detection picture 110 displayed on the display screen to obtain compensation data corresponding to the detection picture. The obtained compensation data is burned into the flash memory of the display screen 140 to be compensated.
In one embodiment, referring to fig. 1b and 1c, the present application provides a Mura compensation method for a display screen. The display area 100 of the display screen includes at least one edge region 160 and a main display area 150. Where the edge area 160 is located at the boundary of the display area 100, the main display area 150 is a display area other than the edge area 160. The compensation method comprises the following steps:
and S110, acquiring brightness data corresponding to the edge area and the main display area respectively.
Wherein the display area of the display screen comprises at least one edge area and a main display area. The display screen may be, but is not limited to, a plasma display screen, a liquid crystal display screen (LCD), a light emitting diode display screen (LED), or an organic light emitting diode display screen (OLED). The display screen is provided with pixels arranged in an array, each pixel in the display screen is displayed based on brightness data of RGB (red, green and blue) three primary colors, and one pixel consists of three sub-pixels of red R, green G and blue B. The light source of each sub-pixel may exhibit a different brightness level, represented by gray scale. The gray levels represent gradation levels of different brightness from the darkest to the brightest. The luminance data means that each pixel in the display area emits light to display a corresponding gray scale.
Specifically, the display screen displays a detection picture, and the detection picture is photographed through the image acquisition device to obtain an image of the detection picture. And extracts corresponding luminance data for each pixel of the detection picture image. The display area of the display screen is divided into an edge area and a main display area. The image acquisition device extracts the brightness data corresponding to the edge region and the brightness data corresponding to the main display region, and sends the brightness data corresponding to the edge region and the brightness data corresponding to the main display region to the data processing device, namely the data processing device acquires the brightness data corresponding to the edge region and the brightness data corresponding to the main display region.
And S120, determining compensation data respectively corresponding to the edge area and the main display area according to the brightness data respectively corresponding to the edge area and the main display area and preset target brightness data.
And the edge area and the main display area in the display screen are both provided with preset target brightness data. The preset target brightness data may also be expressed in gray scale. Specifically, first, the display screen displays a detection screen, and then the data processing device acquires luminance data corresponding to the edge area and luminance data corresponding to the main display area. In fact, the acquired luminance data has a certain difference from the preset target luminance data, and therefore, the compensation data corresponding to the edge region can be determined through the luminance data corresponding to the edge region and the preset target luminance data. And determining compensation data corresponding to the main display area according to the brightness data corresponding to the main display area and preset target brightness data.
And S130, respectively compensating the edge area and the main display area according to the compensation data respectively corresponding to the edge area and the main display area.
In order to improve the display effect of the display screen, the luminance data corresponding to the display area needs to be compensated. Specifically, the edge area is compensated according to the compensation data corresponding to the edge area. And compensating the main display area according to the compensation data corresponding to the main display area.
Furthermore, an interface line is arranged between the edge area and the main display area. When the boundary line between the edge region and the main display region extends along the column direction, the number of pixel columns in the edge region is less than or equal to 3. Preferably, the number of pixel columns in the edge area is 1. And/or when the boundary line of the edge area and the main display area extends along the row direction, the number of pixel rows in the edge area is less than or equal to 3. Preferably, the number of pixel rows in the edge area is 1.
For example, with continued reference to FIG. 1c, the boundary between the edge region and the main display region extends along the column direction, dividing the display region 100 into the edge region 160 and the main display region 150. The number of pixel columns in the edge region 160 is 3 or less. It is understood that the display area 100 of the display screen may include one edge area, or may include two edge areas, the two edge areas 160 are located on the left and right sides of the main display area 150, the number of pixel columns in each of the two edge areas 160 is less than or equal to 3, and the number of pixel columns in each of the two edge areas 160 may be equal to or different from each other, for example, the number of pixel columns in the edge area located on the left side of the main display area 150 may be 1, 2, or 3, and the number of pixel columns in the edge area located on the right side of the main display area 150 may also be 1, 2, or 3. Preferably, there is only one column of pixels in the edge region 160.
For example, with continued reference to fig. 1d, the boundary line between the edge region and the main display region extends along the row direction to divide the display region 100. The number of pixel rows in the edge area 160 is equal to or less than 3. The two edge regions 170 are located at the upper and lower ends of the main display region 180, the number of pixel rows in the two edge regions is less than or equal to 3, and the number of pixel rows in the two edge regions may be equal to or different from each other, for example, the number of pixel columns in the edge region located on the left side of the main display region 150 may be 1, 2, or 3, and the number of pixel columns in the edge region located on the right side of the main display region 150 may also be 1, 2, or 3. Preferably, there is only one column of pixels in the edge region 170.
In this embodiment, the luminance data corresponding to the edge area and the main display area respectively is obtained, so that the compensation data corresponding to the edge area and the main display area respectively is obtained, and the compensation is performed on the edge area and the main display area respectively, thereby solving the technical problem that the display effect is worse due to the same compensation performed on the display area of the display screen in the same manner in the conventional technology.
In one embodiment, referring to fig. 2, determining the compensation data corresponding to the edge area according to the brightness data corresponding to the edge area and the preset target brightness data includes:
s210, when the brightness data corresponding to the edge area and the target brightness data meet preset conditions, adjusting the brightness data of the edge area to be a first preset value.
And S220, determining compensation data corresponding to the edge area according to the first preset value.
The display screen displays pure-color gray scale pictures corresponding to RGB three primary colors, target brightness data are preset in the pure-color gray scale pictures, and the brightness data corresponding to the edge area can be acquired through the image acquisition device. In the edge area, the preset target luminance data is inconsistent with the actually acquired luminance data. In other words, in the production debugging process, when the difference exists between the luminance data corresponding to the edge region and the target luminance data, and the difference between the luminance data corresponding to the edge region and the target luminance data meets a certain condition, the luminance data of the edge region may be set to a certain preset value, that is, the preset value is used to replace the acquired luminance data of the edge region. In order to eliminate the Mura phenomenon in the display screen, after multiple times of debugging, when the difference value between the brightness data corresponding to the edge area and the target brightness data meets a certain condition, the brightness data of the edge area is set as a corresponding first preset value. Therefore, the compensation data corresponding to the edge area is determined according to the brightness data of the edge area, namely the first preset value. It is to be understood that the preset condition is set according to an actual debugging situation, and the first preset value is an empirical value set according to a display effect required for an actual debugging process. For example, the preset condition may be that a difference between the luminance data corresponding to the edge area and the target luminance data is less than 50% of the target luminance data. The first preset value corresponding to the edge area can be set according to the color requirement in the application scene of the display screen.
In this embodiment, when determining whether the luminance data corresponding to the edge region and the target luminance data satisfy the preset condition, the luminance data of the edge region is set according to an actual condition, so as to determine the compensation data of the edge region according to the set luminance data. The compensation data corresponding to the edge area is determined according to the actual situation of the edge area, so that the display effect of the edge area is improved, and the technical problem that the display effect of the edge area of the display screen is poorer due to a compensation method in the prior art is solved.
In one embodiment, referring to fig. 3, the setting of the brightness data of the edge area to be the first preset value includes:
and S310, setting the brightness data of the edge area to be zero.
Referring to fig. 3, determining the compensation data corresponding to the edge area according to the first preset value includes:
and S320, when the brightness data of the edge area is zero, setting the compensation data corresponding to the edge area to be zero.
Because the number of pixel columns or the number of pixel rows in the edge area is less than or equal to 3, the abnormality of the edge area can be found by using the magnifier, or the abnormality of the edge area can be reflected by the difference between the brightness data acquired by the image acquisition device and the target brightness data. However, the resolution of the human eye is not sufficient to see anomalies in the edge regions. Then, when the difference between the luminance data corresponding to the edge region and the target luminance data satisfies the preset condition, the luminance data of the edge region may be set to zero. Meanwhile, when the brightness data of the edge area is zero, the compensation data corresponding to the edge area is set to be zero. I.e. the edge area is displayed completely black.
In this embodiment, the number of pixel columns or the number of pixel rows in the edge area is less than or equal to 3, and the edge area displays completely black, so that a user sees a display screen with uniform display, thereby improving the display effect.
In one embodiment, the luminance data corresponding to the edge region is zero. According to the brightness data respectively corresponding to the edge area and the main display area and the preset target brightness data, determining the compensation data respectively corresponding to the edge area and the main display area, comprising the following steps: and directly setting the compensation data corresponding to the edge area to be zero.
In the actual production process, due to the influence of the production process, individual pixels or all pixels in the edge area do not emit light, that is, the brightness data corresponding to the edge area acquired by the image acquisition device is zero. Because the number of pixel columns or the number of pixel rows in the edge area is less than or equal to 3, the abnormality of the edge area can be found by using the magnifier, or the abnormality of the edge area can be reflected by the difference between the brightness data acquired by the image acquisition device and the target brightness data. However, during use, the resolution of the human eye is not sufficient to see anomalies in the edge regions. Then, when the acquired brightness data corresponding to the edge area is zero, the compensation data corresponding to the edge area is set to be zero, that is, the edge area is displayed in full black.
Further, when the acquired brightness data corresponding to the edge region is zero, the influence of the edge region is not considered in the process of calculating the compensation data of the main display region. I.e. the influence coefficient of the edge area on the main display area is set to zero. And then, determining compensation data corresponding to the main display area according to the brightness data interval area corresponding to the main display area and preset target brightness data. Further, a difference value between the brightness data corresponding to the main display area and preset target brightness data is calculated, and compensation data corresponding to the main display area is determined according to the difference value.
In this embodiment, the number of pixel columns or the number of pixel rows in the edge area is less than or equal to 3, and the edge area displays completely black, so that a user sees a display screen with uniform display, thereby improving the display effect.
In one embodiment, referring to fig. 4, determining the compensation data corresponding to the main display area according to the luminance data corresponding to the main display area and the preset target luminance data includes the following steps:
s410, detecting whether the brightness data of the edge area is equal to a first preset value or zero.
And S420, if so, setting the influence coefficient of the edge area on the main display area to be zero, and calculating the difference value between the brightness data corresponding to the main display area and the preset target brightness data.
And S430, determining compensation data corresponding to the main display area according to the difference.
The display screen displays pure-color gray scale pictures corresponding to RGB three primary colors, target brightness data are preset in the pure-color gray scale pictures, and the brightness data corresponding to the main display area can be acquired through the image acquisition device. In the main display area, the preset target brightness data is inconsistent with the actually acquired brightness data, so that the main display area has corresponding compensation data, and the brightness data of the edge area has certain influence on the compensation data corresponding to the main display area, namely, an influence coefficient can be set between the edge area and the main display area. Specifically, in the production debugging process, when the difference between the luminance data corresponding to the edge area and the target luminance data satisfies the preset condition, the luminance data of the edge area is set to be the corresponding first preset value, and the data processing device may detect whether the luminance data of the edge area is equal to the first preset value. In addition, in the production debugging process, if the individual pixel in the edge region is not bright, and the brightness data corresponding to the edge region acquired by the data processing device is zero, the data processing device may detect whether the brightness data of the edge region is equal to the first preset value or zero. It is understood that the first preset value may be equal to zero, and may be equal to data other than zero.
When the brightness data of the detected edge region is equal to the first preset value or zero, the influence of the edge region is not considered in the process of calculating the compensation data of the main display region. I.e. the influence coefficient of the edge area on the main display area is set to zero. And then, determining compensation data corresponding to the main display area according to the brightness data interval area corresponding to the main display area and preset target brightness data. Further, a difference value between the brightness data corresponding to the main display area and preset target brightness data is calculated, and compensation data corresponding to the main display area is determined according to the difference value.
In this embodiment, the number of pixel columns or the number of pixel rows in the edge area is less than or equal to 3, and a display screen with uniform display is presented to a user by setting the brightness data of the edge area according to actual requirements, so that the display effect is improved. And the influence of the edge area on the main display area is not considered, and the compensation number of the main display area is determined according to the brightness data corresponding to the main display area, so that the edge area and the main display area can be respectively compensated according to the actual condition, and the technical problem that the display effect of the edge area is poorer because the compensation is not carried out according to the actual condition in the traditional technology is solved.
It should be understood that although the various steps in the flow charts of fig. 1-4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-4 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 5, a Mura compensation apparatus 500 for a display screen including a main display area and at least one edge area adjacent to the main display area is provided. The compensating device 500 includes: a luminance data acquisition module 510, a compensation data determination module 520, and a compensation module 530, wherein:
the luminance data obtaining module 510 is configured to obtain luminance data corresponding to the edge area and the main display area, respectively.
The compensation data determining module 520 is configured to determine the compensation data corresponding to the edge area and the main display area according to the brightness data corresponding to the edge area and the main display area, respectively, and the preset target brightness data.
The compensation module 530 is configured to compensate the edge area and the main display area according to the compensation data corresponding to the edge area and the main display area, respectively.
For the specific definition of the Mura compensation apparatus for the display screen, reference may be made to the above definition of the Mura compensation method for the display screen, and details are not described herein again. The modules in the Mura compensation apparatus of the display screen can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 6. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of obtaining Mura compensation data. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 6 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, a computer device is provided, comprising a memory in which a computer program is stored and a processor, which when executing the computer program performs the method steps in the above embodiments.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the method steps of the above-mentioned embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A Mura compensation method of a display screen is characterized in that the display screen comprises a main display area and at least one edge area adjacent to the main display area, and Mura areas in the edge area need to be found through a magnifying glass and cannot be distinguished by human eyes; the method comprises the following steps:
acquiring brightness data corresponding to the edge area and the main display area respectively;
determining compensation data respectively corresponding to the edge area and the main display area according to the brightness data respectively corresponding to the edge area and the main display area and preset target brightness data;
compensating the edge area according to the compensation data corresponding to the edge area, and compensating the main display area according to the compensation data corresponding to the main display area;
the determining method of the compensation data corresponding to the edge area includes: and adjusting the brightness data of the edge area to be a first preset value or zero, determining compensation data corresponding to the edge area according to the first preset value or zero, and displaying the compensated edge area in full black.
2. The method according to claim 1, wherein the display area of the display screen is provided with pixels arranged in an array;
when the boundary line between the edge region and the main display region extends along the column direction, the number of pixel columns in the edge region is less than or equal to 3.
3. The method according to claim 1, wherein the display area of the display screen is provided with pixels arranged in an array;
when the boundary line between the edge area and the main display area extends along the row direction, the number of pixel rows in the edge area is less than or equal to 3.
4. A method according to claim 2 or 3, wherein when the boundary between the edge region and the main display region extends in a column direction, the number of pixel columns in the edge region is 1; and/or
When the boundary line between the edge region and the main display region extends along the row direction, the number of pixel rows in the edge region is 1.
5. The method according to claim 1, wherein the adjusting the brightness data of the edge area to be the first preset value or zero comprises:
and when the brightness data corresponding to the edge area and the target brightness data meet preset conditions, adjusting the brightness data of the edge area to be the first preset value or zero.
6. The method according to claim 1, wherein the determining the compensation data corresponding to the edge region according to the first preset value or zero comprises:
and when the brightness data of the edge area is zero, setting the compensation data corresponding to the edge area to be zero.
7. The method according to claim 1, wherein the determining compensation data corresponding to the main display area according to the brightness data corresponding to the main display area and preset target brightness data comprises:
detecting whether the brightness data of the edge area is equal to a first preset value or zero;
if so, setting the influence coefficient of the edge area on the main display area to be zero, calculating the difference value between the brightness data corresponding to the main display area and preset target brightness data, and determining the compensation data corresponding to the main display area according to the difference value.
8. A Mura compensation device of a display screen is characterized in that the display screen comprises a main display area and at least one edge area adjacent to the main display area, and Mura areas in the edge area need to be found through a magnifying glass and cannot be distinguished by human eyes; the device comprises:
the brightness data acquisition module is used for acquiring brightness data corresponding to the edge area and the main display area respectively;
the compensation data determining module is used for determining the compensation data respectively corresponding to the edge area and the main display area according to the brightness data respectively corresponding to the edge area and the main display area and preset target brightness data;
the compensation module is used for compensating the edge area according to the compensation data corresponding to the edge area and compensating the main display area according to the compensation data corresponding to the main display area;
the determining method of the compensation data corresponding to the edge area includes: and adjusting the brightness data of the edge area to be a first preset value or zero, determining compensation data corresponding to the edge area according to the first preset value or zero, and displaying the compensated edge area in full black.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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