CN113593467A - Display panel optical compensation method, device and machine readable storage medium - Google Patents
Display panel optical compensation method, device and machine readable storage medium Download PDFInfo
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- CN113593467A CN113593467A CN202110918966.3A CN202110918966A CN113593467A CN 113593467 A CN113593467 A CN 113593467A CN 202110918966 A CN202110918966 A CN 202110918966A CN 113593467 A CN113593467 A CN 113593467A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
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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
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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
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
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Abstract
The embodiment of the application provides a display panel optical compensation method, a device and a machine readable storage medium, wherein the method comprises the steps of obtaining optical data of a display panel, calculating the optical data difference of first optical data corresponding to a first display area and second optical data corresponding to a second display area, and judging whether the optical data difference is in a set range; if not, the optical data compensation parameter of the first display area of the display panel is adjusted. Therefore, by means of dynamic adjustment, the optical data of the display panel is acquired, the optical data compensation parameter of the first display area is adjusted according to the acquired optical data, and the display effect difference between the first display area and the second display area is gradually reduced until the optical data difference between the first display area and the second display area is within the set range. Therefore, the optical data compensation parameters of the first display area suitable for the curved surface display panel can be accurately determined, and the display effect of the curved surface display panel is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for optical compensation of a display panel, and a machine-readable storage medium.
Background
In order to increase the screen ratio and improve the visual experience, some display devices form a curved screen by using a display panel with a curved surface after the edge of the display panel is bent. However, because there is a difference between the orientations of the light emitting units in the curved surface area and the non-curved surface area on the curved surface screen and there is a difference between the reflection and refraction of the cover plate, there is a certain difference between the display brightness or the display chromaticity of the curved surface area and the non-curved surface area, for example, there may be a chromaticity sheet cyan or a color pink at the edge of the curved surface, which further causes a problem of display unevenness, and affects the overall display effect of the display device.
Disclosure of Invention
In order to overcome the technical problems mentioned in the above technical background, embodiments of the present application provide an optical compensation method for a display panel, the display panel including a first display area and a second display area, the first display area being disposed around a portion of the second display area; the method comprises the following steps:
acquiring optical data of the display panel; determining first optical data corresponding to the first display area and second optical data corresponding to the second display area from optical data of the display panel;
calculating the optical data difference of the first optical data and the second optical data, and judging whether the optical data difference is within a set range;
if the optical data difference is not within the set range, adjusting the optical data compensation parameter of the first display area of the display panel, and returning to execute the step of acquiring the optical data of the display panel;
and if the optical data difference is within a set range, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
In one possible implementation, before the step of acquiring optical data of the display panel, the method further includes:
gamma parameter adjustment is carried out on the display panel, and an initial value of the optical data compensation parameter of the first display area is determined according to the adjusted gamma parameter;
the step of adjusting the optical data compensation parameter of the first display area of the display panel includes:
and adjusting the optical data compensation parameter of the first display area by taking the initial value of the optical data compensation parameter of the first display area as a reference according to the optical data difference.
In a possible implementation manner, the step of determining first optical data corresponding to the first display area from optical data of the display panel includes:
according to the set range of the first display area, the average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel is obtained to be used as first optical data.
In a possible implementation manner, the step of determining a second optical number corresponding to the second display area from the optical data of the display panel includes:
and acquiring optical data positioned at the central position from the optical data of the display panel as the second optical data according to the set central position of the second display area.
In one possible implementation, the optical data of the display panel includes at least one of luminance data and chrominance data.
In one possible implementation, the optical data differences include luminance data differences and chrominance data differences; if the optical data difference is not within the set range, adjusting the optical data compensation parameter of the first display area of the display panel, including:
if the brightness data difference between the second display area and the first display area is not within the set brightness difference range, adjusting the numerical value of a first color parameter in the optical data compensation parameter of the first display area;
and if the difference of the chromaticity data of the second display area and the first display area is not in the set chromaticity difference range, adjusting the numerical values of a second color parameter and a third color parameter in the optical data compensation parameter of the first display area.
The embodiment of the application also provides an optical compensation device of a display panel, wherein the optical compensation device of the display panel is connected with an optical acquisition device through a first data interface and is connected with the display panel through a second data interface, the display panel comprises a first display area and a second display area, and the first display area is arranged around part of the second display area; the device comprises:
the data acquisition module is used for acquiring optical data of the display panel; determining first optical data corresponding to the first display area and second optical data corresponding to the second display area from optical data of the display panel;
the difference calculation module is used for calculating the optical data difference between the first optical data and the second optical data and judging whether the optical data difference is in a set range;
the parameter adjusting module is used for adjusting the optical data compensation parameter of the first display area of the display panel when the optical data difference is not in the set range, and returning to execute the step of acquiring the optical data of the display panel; and when the optical data difference is within a set range, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
In a possible implementation manner, the data obtaining module is specifically configured to obtain, as the first optical data, an average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel according to the set range of the first display area.
In a possible implementation manner, the data obtaining module is specifically configured to obtain optical data located at a center position from optical data of the display panel as the second optical data according to the set center position of the second display area.
The embodiment of the present application further provides a computer-readable storage medium, which stores a computer program, where the computer program is executed by a processor to implement the method for optical compensation of a display panel provided by the present application.
The present embodiment provides a method and an apparatus for optical compensation of a display panel, and a machine-readable storage medium, which automatically perform multiple times of optical data acquisition of the display panel and perform adjustment of optical data compensation parameters of a first display area according to the acquired optical data by using a dynamic adjustment manner, so as to gradually reduce a difference between display effects of the first display area and a second display area. Therefore, the optical data compensation parameters of the first display area can be accurately determined for the curved surface display panel, the problem of uneven display of the first display area and the second display area is avoided as much as possible, and the display effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a flowchart illustrating a method for optically compensating a display panel according to an embodiment of the present disclosure;
FIG. 2 is a second flowchart illustrating a method for optical compensation of a display panel according to an embodiment of the present disclosure;
FIG. 3 is a third schematic flowchart illustrating a third step of a method for optical compensation of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a first display region and a central position of a display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic view of an application scenario of the optical compensation apparatus for a display panel according to an embodiment of the present disclosure;
FIG. 6 is a block diagram illustrating an optical compensation apparatus for a display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of functional modules included in the display panel optical compensation apparatus according to the embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
Based on the problems mentioned in the background art, the inventor has studied and found that, in order to offset the Color difference of the curved surface area at the Edge of the display panel, an Edge Color Compensation (ECC) function may be added to the driving circuit of the display panel, and the display luminance or the display chromaticity of the curved surface area may be adjusted by setting parameters of the ECC function. However, since there are slight differences in each screen manufacturing process, the degree of deviation of the chromaticity or brightness in the curved surface area is also different, and it is difficult to formulate and accurately determine the degree of influence of the ECC parameters on the brightness and chromaticity of the curved surface portion of different screens due to the slight differences in the curved surface portion manufacturing process, so that it is difficult to meet the adjustment requirements of different screens by using the same ECC parameters. Based on this, the following technical solutions of the present application, which will be described in an exemplary manner with reference to the accompanying drawings, solve the above-mentioned problems.
Referring to fig. 1, a flowchart of an optical compensation method for a display panel provided in this embodiment is shown, where the optical compensation method for a display panel can be used to adjust display parameters of the display panel, and the display panel can include a first display area and a second display area, where the first display area is disposed around a portion of the second display area. In some possible implementations, the display panel may be a curved screen display panel, the first display area may be a curved area of the display panel, and the second display area may be a non-curved area of the display panel. Further, the first display area may be a curved area located at both sides of the second display area. The individual steps of the method are explained in detail below.
Step S110, acquiring optical data of the display panel.
In this embodiment, when the ECC function of the display panel is activated, the optical data of the entire display can be acquired. Alternatively, the optical data of the display panel may be acquired by an optical acquisition device (e.g., an acquisition assembly of a Demura device). Preferably, in order to ensure the debugging accuracy, the display panel and the optical pickup device may be disposed in a darkroom while optical data is being picked up by the optical pickup device.
Step S120, determining first optical data corresponding to the first display area and second optical data corresponding to the second display area from optical data of the display panel.
In this embodiment, the position and range information of the first display area and the second display area may be preset, for example, a pixel range corresponding to the first display area and a pixel range corresponding to the second display area in the collected optical data may be preset, so as to obtain the optical data corresponding to the first display area and the second display area according to the corresponding pixel ranges.
Step S130, calculating an optical data difference between the first optical data and the second optical data, and determining whether the optical data difference is within a set range.
In the present embodiment, it is possible to calculate an optical data difference between the first optical data and the second optical data based on the acquired first optical data and the second optical data, and determine whether the optical data difference is within a set range.
If the optical data difference is not within the set range, step S140 is executed.
If the optical data difference is within the set range, step S150 is executed.
In step S140, the optical data compensation parameter of the first display area of the display panel is adjusted, and the process returns to step S120.
In this embodiment, if it is detected that the optical data difference is not within the set range, it indicates that there is a large display difference (such as a chromaticity or luminance difference) between the first display area and the second display area of the display panel, and therefore, the optical data compensation parameter of the first display area of the display panel needs to be adjusted to reduce the chromaticity or luminance difference between the first display area and the second display area.
Then, the process may jump to step S110 to perform the next loop, enter the adjustment process of the next compensation parameter, obtain the optical data of the display panel again, and determine whether the optical data difference between the first optical data and the second optical data is within the set range after the adjustment process in step S130.
Step S150, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
In the present embodiment, the optical data difference between the first display area and the second display area may be gradually reduced through the multiple-loop dynamic adjustment from step S110 to step S140. When the optical data difference between the first optical data and the second optical data is within the set range, it can be considered that the display effect of the first display area and the display effect of the second display area are substantially consistent, and then the adjusted optical data compensation parameter of the first display area can be written into a register corresponding to the optical data compensation function of the first display area in the display panel. Therefore, in the subsequent use process of the display panel, the adjusted optical data compensation parameter of the first display area is obtained from the register of the driving circuit so as to start the optical data compensation function of the first display area.
For example, the adjusted optical data compensation parameter of the first display region may be written into a One Time Programmable (OTP) memory of the display panel, and when the display panel operates subsequently, the edge color adjustment parameter stored in the OTP memory is assigned to a corresponding register to activate the optical data compensation function of the first display region.
Based on the above design, in the optical compensation method for a display panel provided in this embodiment, optical data of the display panel is automatically acquired multiple times in a dynamic adjustment manner, and optical data compensation parameters of the first display area are adjusted according to the acquired optical data, so as to gradually reduce the display difference between the first display area and the second display area. Therefore, the appropriate optical data compensation parameters of the first display area can be accurately determined for the curved surface display panel.
Optionally, referring to fig. 2, in the present embodiment, before the step S110 is executed, the following step S210 may be executed.
In step S210, gamma parameter adjustment may be performed on the display panel, and an initial value of the optical data compensation parameter of the first display area may be determined according to the adjusted gamma parameter.
In this embodiment, the gamma parameter of the display panel can be adjusted as a whole, and the brightness variation trend of the display panel is ensured to meet the requirement.
When the operation of adjusting the optical data compensation parameter of the first display area of the display panel in step S130 is performed for the first time, the optical data compensation parameter of the first display area may be adjusted based on the initial value of the optical data compensation parameter of the first display area according to the optical data difference. When the first display region optical data compensation parameter of the display panel is adjusted in step S130 again, the adjustment may be continued based on the first display region optical data compensation parameter that was adjusted last time.
In a possible implementation manner, in step S210, the display panel may be controlled to display different gray scales, and color information of the display panel is obtained, and then the R parameter, the G parameter, and the B parameter in the gamma register of the display panel are adjusted according to the collected information.
Based on the above, before the step S130 is executed for the first time, the R parameter, the G parameter, and the B parameter in the gamma register of the display panel may be read as initial values of the optical data compensation parameter of the first display area, and the optical data compensation parameter of the first display area may be adjusted based on the initial values.
For example, after the gamma parameter adjustment is completed, the R parameter, the G parameter, and the B parameter stored in the gamma register of the display panel are (800, 650, 600), respectively. Reading out corresponding parameters from a gamma register of the display panel before the first execution of the step S130, taking (800, 650, 600) as initial values of an R parameter, a G parameter and a B parameter in optical data compensation parameters of the first display area when the step S130 is executed for the first time, and adjusting the R parameter, the G parameter and the B parameter according to the optical data difference of the first display area and the second display area on the basis of the initial values.
Optionally, referring to fig. 3, before step S110, step S220 may be further included.
Step S220, adjusting the Demura parameters of the display panel.
In this embodiment, the entire Demura parameter adjustment may be performed on the display panel first without starting the optical data compensation function of the first display area of the display panel. For example, the display panel may be controlled to display a picture of a specific chromaticity or a specific luminance, and then optical data of each position of the display panel may be acquired. And determining the deviation position and the deviation degree of the brightness or the chromaticity on the display panel according to the acquired optical data, calculating a compensation value required for eliminating the deviation, and then modifying the value in the Demura compensation register at the corresponding position in the display panel to eliminate the brightness or the chromaticity deviation at the position.
Optionally, in step S120, when the first optical data corresponding to the first display area is determined from the optical data of the display panel, an average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel may be acquired as the first optical data according to the set range of the first display area.
For example, the position and range information of the first display area and the second display area of the display panel may be set. In step S120, the overall optical data of each position of the display panel in the operating state may be acquired. Then, an average value of optical data located in a plurality of first unit ranges of the first display area may be acquired from the entire optical data as the average value of the optical data of the first display area as the first optical data according to the set range of the first display area.
Optionally, in step S120, when second optical data corresponding to the second display area is determined from the optical data of the display panel, the optical data at the center position may be acquired from the optical data of the display panel as the second optical data according to the set center position of the second display area.
For example, the optical data of the second unit range at the center position may be extracted from the entire optical data as the second optical data based on the center position of the second display area set in advance
In the present embodiment, the first unit range and the second unit range each include a plurality of rows and a plurality of columns of pixels, and the number of pixels in the first unit range and the second unit range is the same. For example, the first unit range and the second unit range are 20 × 20 pixel ranges.
Taking fig. 4 as an example, the first display regions 210 of the display panel are located at two sides of the second display region, and the regions with the width of 20 pixels, where the first display regions 210 are located at two sides of the second display region, may be preset. After the overall optical data of each position of the display panel in the working state, which is acquired by the optical acquisition device, is acquired, the average value of the optical data in a plurality of first unit ranges is acquired from the first display area 210 as the first optical data, with the pixel range of 20 × 20 as the first unit range. Meanwhile, the relative position of the central position 220 of the second display area on the display panel may be preset, and the optical information in the second unit range of the central position 220 of the second display area is acquired as the second optical data, with the pixel range of 20 × 20 as the second unit range. The optical data difference between the obtained first optical data and the second optical data is then calculated. The first optical data and the second optical data acquired in this way can reflect the difference in display effect between the first display area and the second display area more accurately.
Optionally, in this embodiment, the optical data of the display panel includes at least one of luminance data and chrominance data. The optical data differences include luminance data differences and chrominance data differences. In step S140, when the first display region optical data compensation parameter is adjusted, if the luminance data difference between the second display region and the first display region is not within the set luminance difference range, the value of the first color parameter in the first display region optical data compensation parameter is adjusted. If the difference of the chromaticity data of the second display area and the first display area is not in the set chromaticity difference range, the numerical values of the second color parameter and the third color parameter in the optical data compensation parameter of the first display area are adjusted. Therefore, the brightness and the chromaticity of the first display area can be adjusted, and the display effects of the first display area and the second display area are basically kept consistent. In one example, the first color parameter may be a G (green) parameter, the second color parameter may be an R (red) parameter, and the third color parameter may be a B (blue) parameter.
Referring to fig. 5, the present embodiment provides a display panel optical compensation apparatus 100, the display panel optical compensation apparatus 100 may be used to adjust display parameters of a display panel 200, and the display panel optical compensation apparatus 100 may include a first data interface 110 for connecting with the display panel 200 to be debugged and a second data interface 120 for connecting with an optical acquisition device 300.
In this embodiment, the first data interface 110 and the second data interface 120 of the display panel optical compensation apparatus 100 may be connected to the display panel 200 to be debugged and the optical acquisition device 300, respectively. The collection direction of the optical collection device 300 faces the display panel 200 to be debugged, and is used for collecting optical data of the display panel 200 in the working state.
In addition, referring to fig. 6, fig. 6 is a schematic diagram of the display panel optical compensation apparatus 100 provided in this embodiment, and the display panel optical compensation apparatus 100 may further include a memory 130 and a processor 140 in addition to the first data interface 110 and the second data interface 120. The memory 130 stores machine executable instructions that, when executed by the processor 140, cause the display panel optical compensation apparatus 100 to perform the display panel optical compensation method provided by the present embodiment.
In detail, in this embodiment, the memory 130 stores a plurality of functional modules, which are respectively used for executing the steps of the above method embodiments. For example, as shown in fig. 7, the plurality of functional modules may include a data acquisition module 132, a difference calculation module 133, and a parameter adjustment module 134.
A data obtaining module 132, configured to obtain, through a first data interface, optical data of the display panel collected by the optical collection device when the display panel starts a first display area optical data compensation function; the optical data includes at least one of luminance data and chrominance data. In detail, the data obtaining module 132 may correspondingly execute step S110 and step S120 in the foregoing method embodiment, and for more details of the data obtaining module 132, reference may be made to the foregoing detailed description of step S110 and step S120, which is not described herein again.
Specifically, during the adjustment process, the display panel 200 may be started by the display panel optical compensation apparatus 100 through the first data interface 110, and the first display region optical data compensation function of the display panel 200 may be started. The display panel optical compensation device 100 can control the display panel 200 to display a screen with set color and set brightness. Then, the optical data of the display panel 200 collected by the optical collection apparatus 300 may be acquired by the display panel optical compensation device 100 through the second data interface 120, and the optical collection apparatus 300 may be a Demura apparatus.
In this embodiment, the display panel optical compensation apparatus 100 may store the preset position and range information of the first display area and the second display area in advance, and then directly acquire the optical data corresponding to the first display area and the second display area according to the corresponding pixel range.
Optionally, the data acquiring module 132 is specifically configured to acquire, as the first optical data, an average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel according to the set range of the first display area.
Optionally, the data obtaining module 132 is specifically configured to obtain, as the second optical data, optical data located at a center position from the optical data of the display panel according to the set center position of the second display area.
A difference calculating module 133, configured to calculate an optical data difference between the first optical data and the second optical data, and determine whether the optical data difference is within a set range.
In detail, the difference calculating module 133 may correspondingly execute the step S130 in the foregoing method embodiment, and for further details of the difference calculating module 133, reference may be made to the foregoing detailed description of the step S130, which is not repeated herein.
A parameter adjusting module 134, configured to adjust an optical data compensation parameter of a first display area of the display panel when the optical data difference is not within a set range, and return to the step of obtaining the optical data of the display panel; and when the optical data difference is within a set range, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
In this embodiment, the display panel optical compensation apparatus 100 can write the adjusted optical data compensation parameter of the first display area into a register related to the optical data compensation function of the first display area in the display panel 200 through the second data interface 120, so as to change the display effect of the first display area of the display panel 200.
On the basis of the above, in the present embodiment, preferably, the optical data difference includes a luminance data difference and a chrominance data difference. Based on this, the parameter adjusting module 134 may adjust the value of the first color parameter in the optical data compensation parameter of the first display area when the difference between the luminance data of the second display area and the luminance data of the first display area is not within the set luminance difference range, and adjust the value of the second color parameter and the value of the third color parameter in the optical data compensation parameter of the first display area when the difference between the chrominance data of the second display area and the chrominance data of the first display area is not within the set chrominance difference range.
In detail, the parameter adjusting module 134 may correspondingly perform steps S140 and S150 in the foregoing method embodiment, and for more details of the difference calculating module 134, reference may be made to the foregoing detailed description of steps S140 and S150, which is not described herein again.
In addition, the present embodiment further provides a display panel 200, where the display panel 200 may include a driving circuit corresponding to the first display area optical data compensation function, and the driving circuit stores therein the first display area optical data compensation parameter obtained by the above method, and is used to perform the first display area optical data compensation on the display panel.
The present embodiment also provides a computer-readable storage medium storing a computer program. The display panel optical compensation apparatus 100 includes at least one software functional module that can be stored in the form of a computer program in the machine-readable storage medium. The computer program is executed by a processor to implement the display panel optical compensation method provided by the embodiment.
In summary, the present embodiments provide a method, an apparatus, and a machine-readable storage medium for optical compensation of a display panel, which automatically perform multiple times of optical data acquisition of the display panel and perform adjustment of optical data compensation parameters of a first display area according to the acquired optical data by using a dynamic adjustment method, so as to gradually reduce a difference between display effects of the first display area and a second display area. Therefore, the optical data compensation parameters of the first display area can be accurately determined for the curved surface display panel, the problem of uneven display of the first display area and the second display area is avoided as much as possible, and the display effect is improved.
It should be noted that, in case of conflict, different features in the embodiments of the present application may be combined with each other.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and all such changes or substitutions are included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The optical compensation method for the display panel is characterized in that the display panel comprises a first display area and a second display area, wherein the first display area is arranged around part of the second display area; the method comprises the following steps:
acquiring optical data of the display panel;
determining first optical data corresponding to the first display area and second optical data corresponding to the second display area from optical data of the display panel;
calculating the optical data difference of the first optical data and the second optical data, and judging whether the optical data difference is within a set range;
if the optical data difference is not within the set range, adjusting the optical data compensation parameter of the first display area of the display panel, and returning to execute the step of acquiring the optical data of the display panel;
and if the optical data difference is within a set range, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
2. The method of claim 1, wherein prior to the step of acquiring optical data for the display panel, the method further comprises:
gamma parameter adjustment is carried out on the display panel, and an initial value of the optical data compensation parameter of the first display area is determined according to the adjusted gamma parameter;
the step of adjusting the optical data compensation parameter of the first display area of the display panel includes:
and adjusting the optical data compensation parameter of the first display area by taking the initial value of the optical data compensation parameter of the first display area as a reference according to the optical data difference.
3. The method of claim 1, wherein the step of determining the first optical data corresponding to the first display region from the optical data of the display panel comprises:
according to the set range of the first display area, the average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel is obtained to be used as first optical data.
4. The method of claim 1, wherein the step of determining the second optical number corresponding to the second display region from the optical data of the display panel comprises:
and acquiring optical data positioned at the central position from the optical data of the display panel as the second optical data according to the set central position of the second display area.
5. The method of any of claims 1-4, wherein the optical data of the display panel comprises at least one of luminance data and chrominance data.
6. The method of claim 5, wherein the optical data differences comprise luminance data differences and chrominance data differences; if the optical data difference is not within the set range, adjusting the optical data compensation parameter of the first display area of the display panel, including:
if the brightness data difference between the second display area and the first display area is not within the set brightness difference range, adjusting the numerical value of a first color parameter in the optical data compensation parameter of the first display area;
and if the difference of the chromaticity data of the second display area and the first display area is not in the set chromaticity difference range, adjusting the numerical values of a second color parameter and a third color parameter in the optical data compensation parameter of the first display area.
7. The optical compensation device for the display panel is characterized in that the optical compensation device for the display panel is connected with an optical acquisition device through a first data interface and is connected with the display panel through a second data interface, the display panel comprises a first display area and a second display area, and the first display area is arranged around part of the second display area; the device comprises:
the data acquisition module is used for acquiring optical data of the display panel; determining first optical data corresponding to the first display area and second optical data corresponding to the second display area from optical data of the display panel;
the difference calculation module is used for calculating the optical data difference between the first optical data and the second optical data and judging whether the optical data difference is in a set range;
the parameter adjusting module is used for adjusting the optical data compensation parameter of the first display area of the display panel when the optical data difference is not in the set range, and returning to execute the step of acquiring the optical data of the display panel; and when the optical data difference is within a set range, writing the adjusted optical compensation parameter of the first display area into a register corresponding to the optical compensation function of the first display area in the display panel, and performing optical compensation on the first display area.
8. The apparatus according to claim 7, wherein the data obtaining module is specifically configured to obtain an average value of optical data in a plurality of first unit ranges of the first display area in the optical data of the display panel as the first optical data according to the set range of the first display area.
9. The apparatus according to claim 7, wherein the data obtaining module is specifically configured to obtain optical data located at a central position from the optical data of the display panel as the second optical data according to the set central position of the second display area.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the display panel optical compensation method of any one of claims 1-6.
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