CN115985214B - Multi-probe gamma adjusting method of display panel - Google Patents
Multi-probe gamma adjusting method of display panel Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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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
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Abstract
The application relates to a gamma adjustment method of a display panel, which is characterized in that different display areas of the display panel respectively and independently display gray-scale pictures under different gray-scale binding points, and a plurality of gray-scale binding points are subjected to gamma adjustment in parallel based on a plurality of different gray-scale pictures which are independently displayed, and target gamma parameters obtained by adjustment are applied to the whole display screen, so that the gamma adjustment time of the display panel is shortened; in addition, when the brightness values of the gray-scale pictures in each display area are acquired, the brightness values of the non-edge positions of the gray-scale pictures are acquired, so that the influence of the acquired brightness values on the adjacent gray-scale pictures is effectively reduced, and the accuracy of gamma adjustment is further improved.
Description
The application is a divisional application, the application number of the original application is 202211257683.X, the name of the original application is a multi-probe gamma adjustment method and device of a display panel, the original application date is 2022, 10 months and 14 days, and the whole content of the original application is incorporated by reference.
Technical Field
The application relates to the field of display panels, in particular to a multi-probe gamma adjusting method of a display panel.
Background
Before shipment, the display panel generally needs gamma (gamma, transliterated chinese to "gamma") adjustment to ensure its display effect. The core competitiveness of manufacturers who do gamma regulation in the industry is reflected in the total duration of gamma regulation and the effect of gamma regulation.
A gamma adjusting method proposed by the related art is as follows: and the display panel is enabled to respectively display a plurality of gray-scale pictures under different gray-scale binding points in a whole screen mode according to the time sequence, in the process of displaying the gray-scale picture corresponding to each gray-scale binding point, an optical probe is adopted to collect the brightness of the gray-scale picture, and then the gamma adjustment is carried out on the corresponding gray-scale binding point based on the brightness so as to obtain ideal gamma parameters, so that the ideal gamma parameters of the gray-scale binding points are obtained. The disadvantage of this adjustment is that: the gamma adjustment of the next gray-scale binding point must be performed after the gamma adjustment of the previous gray-scale binding point is completed, resulting in a longer time period of the gamma adjustment of the display panel and thus an increase in the tt (tact time/tack time) of the display panel.
Disclosure of Invention
In view of the above, the present application provides a method and apparatus for adjusting gamma of a display panel with multiple probes, so as to shorten the gamma adjustment time of the display panel and ensure the accuracy of gamma adjustment.
In a first aspect, the present application provides a multi-probe gamma adjustment method of a display panel, the display panel including a first display area and a second display area that do not overlap each other, the method including:
The following steps S201 to S203 are performed while the following steps S101 to S103 are performed:
S101, controlling the first display area to display a first gray-scale picture, wherein the first gray-scale picture corresponds to a first gray-scale binding point;
S102, collecting the current first brightness of a first area in the first gray-scale picture through a first optical probe;
S103, performing gamma adjustment on the first gray scale binding point according to the first brightness to obtain a first target gamma parameter corresponding to the first gray scale binding point, wherein the first target gamma parameter is used as a gamma parameter of all display areas of the display panel under the first gray scale binding point;
s201, controlling the second display area to display a second gray-scale picture, wherein the second gray-scale picture corresponds to a second gray-scale binding point, and the gray-scale value of the second gray-scale binding point is different from the gray-scale value of the first gray-scale binding point;
S202, acquiring the current second brightness of a second area in the second gray-scale picture through a second optical probe;
S203, performing gamma adjustment on the second gray scale binding point according to the second brightness to obtain a second target gamma parameter corresponding to the second gray scale binding point, wherein the second target gamma parameter is used as a gamma parameter of all display areas of the display panel under the second gray scale binding point;
The first area is positioned at the non-edge part of the first gray-scale picture, and the second area is positioned at the non-edge part of the second gray-scale picture;
Repeatedly performing the steps S101 to S103, and repeatedly performing the steps S201 to S203 while repeatedly performing the steps S101 to S103;
The steps S101 to S103 are repeatedly executed and the steps S201 to S203 are repeatedly executed independently, the steps S101 to S103 are executed p times in total, the steps S201 to S203 are executed q times in total, and when the steps S101 to S103 are executed p times, the steps S201 to S203 are in the process of being executed q times, p+q=m, p is not equal to q, and M is the total gray scale number of the display panel.
In some possible embodiments, the method comprises:
Each time the steps S101 to S103 are executed, the gray-scale value of the corresponding first gray-scale binding point is different from the gray-scale values of the corresponding first gray-scale binding points when all the previous steps S101 to S103 are executed; each time the steps S201 to S203 are executed, the gray-scale value of the corresponding second gray-scale binding point is different from the gray-scale values of the corresponding second gray-scale binding points when all the previous steps S201 to S203 are executed; the gray-scale value of the first gray-scale binding point corresponding to the step S101 to S103 is different from the gray-scale value of the second gray-scale binding point corresponding to the step S201 to S203.
In a second aspect, the present application provides a multi-probe gamma adjustment method for a display panel, where the display panel includes N display areas that do not overlap each other, the N display areas are respectively a1 st display area to an N display area, and N is greater than or equal to 3, and the method includes:
The following operations of i=1, 2, …, N are repeatedly performed in parallel, and the repeated operations of i=n1 and i=n2 are performed independently of each other, N1 and N2 being selected from different values in {1,2, …, N }:
controlling an ith display area to display an ith gray-scale picture, wherein the ith gray-scale picture corresponds to an ith gray-scale binding point;
collecting the current ith brightness of the ith gray-scale picture through an ith optical probe; and
According to the ith brightness, gamma adjustment is carried out on the ith gray scale binding point to obtain an ith target gamma parameter corresponding to the ith gray scale binding point, wherein the ith target gamma parameter is used as a gamma parameter of all display areas of the display panel under the ith gray scale binding point;
When the operation is executed each time, the gray scale value of the corresponding ith gray scale binding point is different from the gray scale value of the corresponding ith gray scale binding point when all the previous operations are executed; the gray-scale value of the 1 st gray-scale binding point corresponding to the operation of i=1 is executed at any one time, the gray-scale value of the 2 nd gray-scale binding point corresponding to the operation of i=2 is executed at any one time, the gray-scale value … … of the 3 rd gray-scale binding point corresponding to the operation of i=3 is executed at any one time, and the gray-scale value of the N th gray-scale binding point corresponding to the operation of i=n is executed at any one time, which are different from each other;
Wherein the sum of the total number of operations of i=1, the total number of operations of i=2, the total number of operations of i=3 … …, and the total number of operations of i=n is equal to the total number of gray scale steps of the display panel.
According to the gamma adjustment method provided by the application, different display areas of the display panel respectively and independently display gray-scale pictures under different gray-scale binding points, and the gamma adjustment is carried out on the gray-scale binding points in parallel based on the different gray-scale pictures which are independently displayed, and the target gamma parameters obtained by adjustment are applied to the whole display screen, so that the gamma adjustment time of the display panel is shortened; in addition, when the brightness values of the gray-scale pictures in each display area are acquired, the brightness values of the non-edge positions of the gray-scale pictures are acquired, so that the influence of the acquired brightness values on the adjacent gray-scale pictures is effectively reduced, and the accuracy of gamma adjustment is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present application and are not limiting of the present application.
Fig. 1 is a flowchart of a gamma adjustment method according to an embodiment of the application.
Fig. 2 is a flowchart of a gamma adjustment method according to an embodiment of the application.
Fig. 3 is a schematic diagram of a display panel according to an embodiment of the application when displaying a first gray-scale frame and a second gray-scale frame.
Fig. 4 is a schematic diagram of a display panel according to an embodiment of the application when displaying a first gray-scale frame and a second gray-scale frame.
Fig. 5 is a schematic diagram of a display panel according to an embodiment of the application when displaying a first gray-scale frame, a second gray-scale frame, a third gray-scale frame, and a fourth gray-scale frame.
Fig. 6 is a flowchart of a gamma adjustment method according to an embodiment of the application.
Fig. 7 is a schematic structural diagram of a gamma adjusting device according to an embodiment of the application.
Reference numerals illustrate:
100-a display panel;
101-a first display area, 102-a second display area, 103-a third display area, 104-a fourth display area;
101 a-first zone, 102 a-second zone.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present application fall within the protection scope of the present application. It is to be understood that some of the technical means of the various embodiments described herein may be interchanged or combined without conflict.
In the description of the present specification and claims, the terms "first," "second," and the like, if any, are used merely to distinguish between the described objects and do not have any sequential or technical meaning. Thus, an object defining "first," "second," etc. may explicitly or implicitly include one or more such objects. Also, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and "a plurality" of "are used to indicate no less than two.
In the description of the present specification and claims, the terms "based on," "according to," if any, are used to describe one or more factors that affect a determination. The term does not exclude additional factors affecting the determination. That is, the determination may be based solely on these factors or at least in part on these factors. For example, the phrase "B is determined based on A", in which case A is a factor affecting the determination of B, which phrase does not exclude that the determination of B may also be based on C.
In the description of the present application, reference to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.
Referring to fig. 1, an embodiment of the present application provides a multi-probe gamma adjustment method for performing gamma adjustment on a display panel 100 shown in fig. 3, where the display panel 100 has a first display area 101 and a second display area 102 that do not overlap each other, and the first display area 101 and the second display area 102 together occupy all pixel points of the display panel 100, that is, the first display area 101 and the second display area 102 form all display areas of the display panel 100. The method specifically comprises the following steps:
The following steps S201 to S203 are performed while the following steps S101 to S103 are performed:
S101, controlling a first display area 101 to display a first gray-scale picture, wherein the first gray-scale picture corresponds to a first gray-scale binding point;
s102, collecting the current first brightness of a first gray-scale picture through a first optical probe;
S103, performing gamma adjustment on the first gray scale binding points according to the first brightness to obtain first target gamma parameters corresponding to the first gray scale binding points, wherein the first target gamma parameters are used as gamma parameters of all display areas of the display panel 100 under the first gray scale binding points;
S201, controlling the second display area 102 to display a second gray-scale picture, wherein the second gray-scale picture corresponds to a second gray-scale binding point, and the gray-scale value of the second gray-scale binding point is different from the gray-scale value of the first gray-scale binding point;
s202, acquiring the current second brightness of a second gray-scale picture by adopting a second optical probe;
s203, performing gamma adjustment on the second gray scale binding point according to the second brightness to obtain a second target gamma parameter corresponding to the second gray scale binding point, wherein the second target gamma parameter is used as a gamma parameter of all display areas of the display panel 100 under the second gray scale binding point.
It is essential to note that in the description of the application, the term "simultaneously" has the meaning of overlapping in duration, not only referring to things that start at (exactly) the same time, but also to things that may not start and/or end at exactly the same time but that occur during the same time range. In particular, in the present embodiment, "simultaneously" means that the operations of S101 to S103 described above are performed at least partially simultaneously with the operations of S201 to S203. "simultaneous" may also be understood as "parallel".
By assigning different display parameters (e.g., RGB values) to different display areas of the display panel 100, different gray-scale pictures can be displayed in the different display areas, and thus, the first display area 101 and the second display area 102 can respectively display two completely different gray-scale pictures at the same time, and when the gray-scale picture displayed in one display area remains unchanged, the gray-scale picture displayed in the other display area can be changed.
In this embodiment, in the step S101, the gray-scale binding point corresponding to the gray-scale picture displayed in the first display area 101 is 0 gray-scale, that is, the gray-scale value of the first gray-scale binding point is 0, and in the step S201, the gray-scale binding point corresponding to the gray-scale picture displayed in the second display area 102 is 255 gray-scale, that is, the gray-scale value of the second gray-scale binding point is 255. It can be understood that, before step S102, the gamma parameter corresponding to the first gray-scale binding point is not corrected, and the current actual brightness of the first gray-scale image may not conform to the visual characteristic of human eyes at the first gray-scale binding point; before step S202, the gamma parameter corresponding to the second gray scale binding point is not corrected, and the current actual brightness of the second gray scale frame may not conform to the visual characteristics of human eyes at the second gray scale binding point.
In the present embodiment, the total gray scale level of the display panel 100 is 256, that is, the display panel 100 has 256 brightness levels in total. In practical application, a worker may pre-establish an initial gray-scale database in the computer device, where the initial gray-scale database contains initial gamma parameters of 256 gray-scale binding points from 0 gray-scale to 255 gray-scales, and when executing step S101, may call the initial gamma parameters corresponding to the 0 gray-scale binding point (the first gray-scale binding point) in the initial gray-scale database and send the initial gamma parameters to the first display area 101 of the display panel 100, so that the first display area 101 displays an initial gray-scale picture corresponding to the 0 gray-scale binding point; when executing step S201, the initial gamma parameter corresponding to the 255 gray-scale binding point (the second gray-scale binding point) in the initial gray-scale database may be called and transmitted to the second display area 102 of the display panel 100, so that the second display area 102 displays the initial gray-scale picture corresponding to the 255 gray-scale binding point. Illustratively, the left gray-scale frame in fig. 3 corresponds to the first gray-scale frame in step S101, and the right gray-scale frame corresponds to the second gray-scale frame in step S201.
In other embodiments, the total gray scale level of the display panel 100 may be 32, 64, 128 or 512.
The gray-scale picture has a certain brightness value (Display Brightness Value, DBV), and the brightness of the gray-scale picture can be acquired through a professional optical probe (such as a CA410 probe). The method for collecting the brightness of the picture is a mature prior art and will not be described herein.
In this embodiment, the first display area 101 and the second display area 102 correspond to different optical probes, respectively, where the first optical probe is specifically responsible for acquiring the brightness of the gray-scale picture in the first display area 101, and the second optical probe is specifically responsible for acquiring the brightness of the gray-scale picture in the second display area 102. The advantage of such a design is that: the light probe does not need to wait for the completion of the brightness collection of one display area, and the gamma adjustment of the first display area 101 and the gamma adjustment of the second display area 102 can be performed simultaneously, thereby improving the gamma adjustment efficiency.
It will be appreciated that if the brightness value of the entire area of the first gray-scale frame is collected by the first optical probe in step S102, the brightness value is necessarily affected by the brightness of the second gray-scale frame (because the second gray-scale frame has a different brightness from the first gray-scale frame and the two gray-scale frames are adjacent to each other), so that a larger error occurs in the brightness value. In this regard, referring to fig. 3 again, in this embodiment, the capturing, by the first optical probe, the current first brightness of the first gray-scale frame is specifically: collecting the current brightness of a first area 101a in a first gray-scale picture through a first optical probe; the collecting the current second brightness of the second gray-scale picture through the second optical probe specifically comprises: collecting the current brightness of a second area 102a in a second gray-scale picture through a second optical probe; the first region 101a is located at a non-edge portion of the first grayscale image, and the second region 102a is located at a non-edge portion of the second grayscale image.
The current brightness of the first area 101a in the first gray-scale image acquired by the first optical probe may be the average brightness of the acquired area, and illustratively, the current brightness of the first area 101a in the first gray-scale image acquired by the first optical probe is the average brightness of the first area 101 a.
Referring to fig. 3 again, the first area 101a may be a central area of the first gray-scale image, that is, a central area of the first display area 101; the second region 102a may be a center region of the second gray-scale screen, that is, a center region of the second display region 102.
Considering that the gamma parameter under the gray scale binding point is adjusted according to the actual brightness of the display screen under the corresponding gray scale binding point as the prior art, the following description is only made here:
For example, in some embodiments, the current brightness of the first gray-scale frame acquired by the first optical probe in step S102 is compared with the standard brightness corresponding to the first gray-scale binding point, if the brightness difference between the current brightness and the standard brightness exceeds the set threshold range, which indicates that the deviation between the initial gamma parameter under the first gray-scale binding point and the ideal gamma parameter is large, the gamma parameter (mainly including the R/G/B value) corresponding to the first gray-scale binding point is finely tuned, and the finely tuned gamma parameter is transmitted to the first display area 101, so that the first display area 101 displays the gray-scale frame corresponding to the first gray-scale binding point after the gamma parameter is finely tuned; and then, acquiring the brightness of the current gray-scale picture in the first display area 101 through the first optical probe (the brightness of the gray-scale picture in the first display area 101 is changed compared with the brightness of the first gray-scale picture at the moment because the gamma parameter is adjusted), comparing the brightness of the current gray-scale picture acquired by the first optical probe with the standard brightness corresponding to the first gray-scale binding point again, and if the brightness difference between the brightness and the standard brightness still exceeds the set threshold range, further fine-adjusting the gamma parameter corresponding to the first gray-scale binding point according to the brightness difference until the difference between the brightness of the current gray-scale picture in the first display area 101 and the standard brightness corresponding to the first gray-scale binding point is within the set threshold range, wherein the gamma parameter is the first target gamma parameter. The resulting target gamma parameters are stored in the gamma chip of the display panel 100.
For example, in other embodiments, if the difference between the current brightness of the first gray-scale frame acquired by the first optical probe in step S102 and the standard brightness corresponding to the first gray-scale binding point is within the set threshold range, it is indicated that the initial gamma parameter under the first gray-scale binding point has not great deviation from the ideal gamma parameter, and the initial gamma parameter under the first gray-scale binding point may be used as the first target gamma parameter. It can be seen that the first target gamma parameter as finally determined is not necessarily different from the original gamma parameter.
The specific method for obtaining the second target gamma parameter is similar to the specific method for obtaining the first target gamma parameter, and will not be described again.
For the same display panel 100, the display characteristics of the display areas are generally substantially consistent (the difference is not large), based on which, in this embodiment, the target gamma parameter extension at the first gray scale binding point determined based on the display effect of the first display area 101 is applied to all display areas of the display panel 100 (in this embodiment, the first display area 101 and the second display area 102 are specific, and in other embodiments, the display panel 100 may further have other display areas except the first display area 101 and the second display area 102), and the target gamma parameter extension at the second gray scale binding point determined based on the display effect of the second display area 102 is applied to all display areas of the display panel 100, so that not only the accuracy of gamma adjustment is ensured to a certain extent, but also the rate of gamma adjustment may be significantly improved.
It will be appreciated that, through the operations of S101-S103 and S201-S203, the target gamma parameters of two gray-scale binding points can be obtained, and the time period for obtaining the two target gamma parameters is only about half of the time period used in the conventional scheme (whole screen single picture adjustment).
The total number of gray scale levels of the display panel 100 in the market is generally not less than 8, so that the target gamma parameters of all gray scale binding points of the display panel 100 cannot be obtained only by the operations of S101-S103 and S201-S203. Based on this, in order to obtain target gamma parameters for more gray scale binding points, referring to fig. 2, in some embodiments, the gamma adjustment method further includes: after the step S103, repeating the steps S101 to S103, wherein each time the steps S101 to S103 are performed, the gray-scale value of the corresponding first gray-scale binding point is different from the gray-scale values of the corresponding first gray-scale binding points when all the previous steps S101 are performed; after the step S203, repeating the steps S201 to S203, wherein each time the steps S201 to S203 are performed, the gray-scale value of the corresponding second gray-scale binding point is different from the gray-scale values of the corresponding second gray-scale binding points when all the previous steps S201 to S203 are performed; moreover, the gray-scale value of the first gray-scale binding point corresponding to the step S101 to S103 is different from the gray-scale value of the second gray-scale binding point corresponding to the step S201 to S203 (the same gray-scale binding point is prevented from being repeatedly adjusted).
As can be understood from fig. 2, if steps S101 to S103 are repeatedly performed 30 times, target gamma parameters corresponding to 30 different gray scale binding points can be obtained based on the first display area 101; if steps S201 to S203 are repeatedly performed 50 times, the target gamma parameters corresponding to 50 different gray scale binding points can be obtained based on the second display area 102; because the gray scale value of the first gray scale binding point corresponding to any one of the steps S101 to S103 is different from the gray scale value of the second gray scale binding point corresponding to any one of the steps S201 to S203, the target gamma parameters of 30+50=80 different gray scale binding points can be obtained in total, and the target gamma parameters of the remaining 256-80=176 gray scale binding points can be obtained in other manners (for example, the target gamma parameters of the remaining 176 gray scale binding points can be obtained by fitting based on the obtained target gamma parameters of the 80 gray scale binding points).
Although the target gamma parameters of the remaining gray scale binding points can be derived based on the target gamma parameter fitting of a portion of the gray scale binding points, the target gamma parameters obtained in this way may have a large error. In this regard, referring to fig. 2 again, in the embodiment shown in fig. 2, the target gamma parameters of all 256 gray-scale binding points are obtained in the above manner, specifically: repeating steps S101 to S103 until target gamma parameters corresponding to all gray scale binding points of the display panel 100 are obtained; steps S201 to S203 are repeatedly performed until target gamma parameters corresponding to all gray scale binding points of the display panel 100 are obtained. That is, steps S101 to S103 are repeatedly performed until target gamma parameters of all 256 gray scale binding points are obtained, and then the repetition is stopped; steps S201 to S203 are repeatedly performed until target gamma parameters of all 256 gray-scale binding points are obtained, and then the repetition is stopped.
It is noted that, each time the steps S101 to S103 are executed, the gray-scale value of the first gray-scale binding point is different from the gray-scale value of the first gray-scale binding point when all the previous steps S101 are executed, each time the steps S201 to S203 are executed, the gray-scale value of the second gray-scale binding point is different from the gray-scale value of the second gray-scale binding point when all the previous steps S201 are executed, and the gray-scale value of the first gray-scale binding point is different from the gray-scale value of the second gray-scale binding point when any one of the steps S101 to S103 is executed. Therefore, when the sum of the total execution times of steps S101 to S103 and the total execution times of steps S201 to S203 is equal to 256, the target gamma parameters of all gray scale binding points of the display panel 100 can be obtained. In other words, if steps S101 to S103 are performed p times in total, steps S201 to S203 are performed M-p times in total, where M is the total number of gray levels of the display panel 100, and m=256 in the embodiment shown in fig. 2.
For different gray-scale binding points, the brightness deviation of the corresponding initial gray-scale frame is different, so the adjustment (or correction) time of the gamma parameter is usually different, so when the 128 th execution of steps S101 to S103 is possible, steps S201 to S203 are only in the process of being executed by the 90 th execution. In order to shorten the gamma adjustment time of all the gray-scale binding points as much as possible, it is preferable to ensure that the steps S201 to S203 are just in the process of being executed last time when the steps S101 to S103 are executed last time. Illustratively, if steps S201 to S203 are being executed 118 th time when steps S101 to S103 are executed 138 th time, indicating that all target gamma parameters of all 256 gray-scale binding points are obtained after the current steps S101 to S103 and the current steps S201 to S203 are executed, the repetition may be stopped after the current steps S101 to S103 are executed, and the repetition may be stopped after the current steps S201 to S203 are executed.
When steps S101 to S103 are repeatedly executed each time, a corresponding first gray-scale binding point may be selected randomly or according to a set order from the initial gray-scale database, and when steps S201 to S203 are repeatedly executed each time, a corresponding second gray-scale binding point may also be selected randomly or according to a set order from the initial gray-scale database, and each time, after a certain gray-scale binding point is selected, the selected gray-scale binding point is removed from the initial gray-scale database, and used as Hou Xuanku of the next selected gray-scale binding point.
In some embodiments, the gray level value of the corresponding first gray level binding point is 0 when steps S101 to S103 are performed for the first time, and the gray level value of the corresponding second gray level binding point is 255 when steps S201 to S203 are performed for the first time; the gray-scale value of the first gray-scale binding point is 1 greater each time steps S101 to S103 are performed than the gray-scale value of the first gray-scale binding point when steps S101 to S103 were performed last time, and the gray-scale value of the second gray-scale binding point is 1 smaller each time steps S201 to S203 are performed than the gray-scale value of the second gray-scale binding point when steps S201 to S203 were performed last time. Illustratively, the gray level of the corresponding first gray level binding point is 1 when the steps S101 to S103 are performed for the second time, the gray level of the corresponding first gray level binding point is 2 when the steps S101 to S103 are performed for the third time, the gray level of the corresponding first gray level binding point is 2 when the steps S101 to S103 are performed for the fourth time, … … is the gray level of the corresponding first gray level binding point, 254 is the gray level of the corresponding second gray level binding point when the steps S201 to S203 are performed for the second time, 253 … … is the gray level of the corresponding second gray level binding point when the steps S201 to S203 are performed for the third time, and if the steps S101 to S103 are performed for the 100 th time (the corresponding first gray level binding point is 99 gray level), the steps S201 to S203 are in the process of being performed for the 156 th time (the corresponding second gray level binding point is 100 gray level), the steps S101 to S103 are stopped being repeated after the current steps S101 to S103 are performed.
It should be noted that, in implementing the above method, the first display area 101 and the second display area 102 are not necessarily required to occupy all the display areas of the display panel 100 together, and two corresponding display areas spaced apart from each other may be selected as the first display area 101 and the second display area 102 in the above method as required. Illustratively, as shown in fig. 4, the first display area 101 and the second display area 102 are arranged at intervals, and in the process of implementing the above method, the display area (dark black area) between the first display area 101 and the second display area 102 in fig. 4 may be always in a normally dark state.
Referring to fig. 6, another embodiment of the present application also provides a multi-probe gamma adjustment method, which is similar to the method of the above embodiments, and can be understood with reference to the description of the above embodiments, and hereinafter, the differences between the embodiments are described with emphasis.
The embodiment shown in fig. 6 provides a method for performing gamma adjustment on the display panel 100 shown in fig. 5, where the display panel 100 has a first display area 101, a second display area 102, a third display area 103, and a fourth display area 104 that are not overlapped with each other, and the total gray scale level of the display panel 100 is 128. The method comprises the following steps:
The following steps S201 to S203 are performed, the following steps S301 to S303 are performed, and the following steps S401 to S403 are performed, simultaneously with the following steps S101 to S103.
S101, controlling the first display area 101 to display a first gray-scale picture, wherein the first gray-scale picture corresponds to a first gray-scale binding point.
S102, collecting the current first brightness of a first gray-scale picture through a first optical probe.
S103, performing gamma adjustment on the first gray scale binding points according to the first brightness to obtain first target gamma parameters corresponding to the first gray scale binding points, wherein the first target gamma parameters are used as gamma parameters of all display areas of the display panel 100 under the first gray scale binding points.
S201, controlling the second display area 102 to display a second gray-scale picture, wherein the second gray-scale picture corresponds to a second gray-scale binding point, and the gray-scale value of the second gray-scale binding point is different from the gray-scale value of the first gray-scale binding point.
S202, acquiring the current second brightness of a second gray-scale picture by adopting a second optical probe.
S203, performing gamma adjustment on the second gray scale binding points according to the second brightness to obtain second target gamma parameters corresponding to the second gray scale binding points, wherein the second target gamma parameters are used as gamma parameters of all display areas of the display panel 100 under the second gray scale binding points;
S301, controlling the third display area 103 to display a third gray-scale picture, wherein the third gray-scale picture corresponds to the first gray-scale binding point, and the gray-scale value of the third gray-scale binding point, the gray-scale value of the first gray-scale binding point and the gray-scale value of the second gray-scale binding point are different from each other;
S302, collecting the current third brightness of a third gray-scale picture through a third optical probe;
S303, performing gamma adjustment on the third gray scale binding point according to the third brightness to obtain a third target gamma parameter corresponding to the third gray scale binding point, wherein the third target gamma parameter is used as a gamma parameter of all display areas of the display panel 100 under the third gray scale binding point;
S401, controlling the fourth display area 104 to display a fourth gray-scale picture, wherein the fourth gray-scale picture corresponds to a fourth gray-scale binding point, and the gray-scale value of the fourth gray-scale binding point, the gray-scale value of the third gray-scale binding point, the gray-scale value of the first gray-scale binding point and the gray-scale value of the second gray-scale binding point are different from each other;
s402, acquiring current fourth brightness of a fourth gray-scale picture by adopting a fourth optical probe;
S403, performing gamma adjustment on the fourth gray scale binding point according to the fourth brightness to obtain a fourth target gamma parameter corresponding to the fourth gray scale binding point, wherein the fourth target gamma parameter is used as a gamma parameter of all display areas of the display panel 100 under the fourth gray scale binding point.
It will be understood that, through the operations of S101 to S103, S201 to S203, S301 to S303, and S401 to S403 described above, the target gamma parameters of the four gray-scale binding points can be obtained, and the time period for obtaining the four target gamma parameters is only about 1/4 of the time period for the conventional scheme (whole screen single screen adjustment).
Referring to fig. 6 again, in order to obtain the target gamma parameters of all 128 gray-scale binding points, the method of this embodiment may further include:
after the step S103, repeating the steps S101 to S103 until target gamma parameters of all the gray-scale binding points are obtained, wherein each time the steps S101 to S103 are executed, the gray-scale value of the corresponding first gray-scale binding point is different from the gray-scale value of the corresponding first gray-scale binding point when all the previous steps S101 to S103 are executed;
after the step S203, repeating the steps S201 to S203 until target gamma parameters of all the gray scale binding points are obtained, wherein each time the steps S201 to S203 are executed, the gray scale value of the corresponding second gray scale binding point is different from the gray scale value of the corresponding second gray scale binding point when all the previous steps S201 to S203 are executed;
after the step S303, repeating the steps S301 to S304 until target gamma parameters of all the gray scale binding points are obtained, where each time the steps S301 to S304 are executed, the gray scale value of the corresponding third gray scale binding point is different from the gray scale value of the corresponding third gray scale binding point when all the previous steps S301 to S304 are executed;
after the step S403, repeating the steps S401 to S404 until the target gamma parameters of all the gray scale binding points are obtained, where each time the steps S401 to S404 are executed, the gray scale value of the corresponding fourth gray scale binding point is different from the gray scale value of the corresponding fourth gray scale binding point when all the previous steps S401 to S404 are executed;
The gray-scale values of the first gray-scale binding points corresponding to the steps S101 to S103 are different from each other when the steps S201 to S203 are performed at any one time, the gray-scale values of the third gray-scale binding points corresponding to the steps S301 to S303 are performed at any one time, and the gray-scale values of the fourth gray-scale binding points corresponding to the steps S401 to S403 are performed at any one time.
Illustratively, the computer device for executing the method randomly selects 71, 3, 35, 12 four gray-scale binding points from the initial gray-scale database, and allocates the four gray-scale binding points to the first display area 101, the second display area 102, the third display area 103 and the fourth display area 104 respectively, so that the four display areas respectively display initial gray-scale pictures corresponding to the gray-scale binding points to correct gamma parameters of the four gray-scale binding points; after step S103 is completed, that is, after the correction of the 71 gray-scale binding points is completed, another gray-scale binding point (for example, 29 gray-scales) is randomly selected from the initial gray-scale database and is sent to the first display area 101, so as to correct the gamma parameters of the 29 gray-scales; after the step S303 is completed, that is, the correction of the 35 gray-scale binding points is completed, another gray-scale binding point (e.g., 7 gray-scales) is randomly selected from the initial gray-scale database and is sent to the third display area 103, so as to correct the gamma parameters of 7 gray-scales … …; and so on until the gamma adjustment for all 128 gray scale binding points is completed.
Obviously, the display panel 100 may be divided into three, five, six or more display areas, and gamma correction is performed on each gray-scale binding point by the above-described method based on the gray-scale picture corresponding to a different gray-scale binding point displayed by each display area.
In addition, referring to fig. 7, an embodiment of the present application further provides a gamma adjusting apparatus, which includes a computer device and a plurality of optical probes, wherein the computer device includes a memory, a processor connected to the memory and the plurality of optical probes, and instructions stored in the memory and executable by the processor. When the computer device is connected to the display panel 100, the processor may execute the foregoing instructions to implement the gamma adjustment method described above.
Obviously, the plurality of optical probes may share the same housing.
Claims (3)
1. A multi-probe gamma adjustment method of a display panel, wherein the display panel includes a first display area and a second display area that do not overlap each other, the method comprising:
The following steps S201 to S203 are performed while the following steps S101 to S103 are performed:
S101, controlling the first display area to display a first gray-scale picture, wherein the first gray-scale picture corresponds to a first gray-scale binding point;
S102, collecting the current first brightness of a first area in the first gray-scale picture through a first optical probe;
S103, performing gamma adjustment on the first gray scale binding point according to the first brightness to obtain a first target gamma parameter corresponding to the first gray scale binding point, wherein the first target gamma parameter is used as a gamma parameter of all display areas of the display panel under the first gray scale binding point;
s201, controlling the second display area to display a second gray-scale picture, wherein the second gray-scale picture corresponds to a second gray-scale binding point, and the gray-scale value of the second gray-scale binding point is different from the gray-scale value of the first gray-scale binding point;
S202, acquiring the current second brightness of a second area in the second gray-scale picture through a second optical probe;
S203, performing gamma adjustment on the second gray scale binding point according to the second brightness to obtain a second target gamma parameter corresponding to the second gray scale binding point, wherein the second target gamma parameter is used as a gamma parameter of all display areas of the display panel under the second gray scale binding point;
The first area is positioned at the non-edge part of the first gray-scale picture, and the second area is positioned at the non-edge part of the second gray-scale picture;
Repeatedly performing the steps S101 to S103, and repeatedly performing the steps S201 to S203 while repeatedly performing the steps S101 to S103;
The steps S101 to S103 are repeatedly executed and the steps S201 to S203 are repeatedly executed independently, the steps S101 to S103 are executed p times in total, the steps S201 to S203 are executed q times in total, and when the steps S101 to S103 are executed p times, the steps S201 to S203 are in the process of being executed q times, p+q=m, p is not equal to q, and M is the total gray scale number of the display panel.
2. The method according to claim 1, characterized in that the method comprises:
Each time the steps S101 to S103 are executed, the gray-scale value of the corresponding first gray-scale binding point is different from the gray-scale values of the corresponding first gray-scale binding points when all the previous steps S101 to S103 are executed; each time the steps S201 to S203 are executed, the gray-scale value of the corresponding second gray-scale binding point is different from the gray-scale values of the corresponding second gray-scale binding points when all the previous steps S201 to S203 are executed; the gray-scale value of the first gray-scale binding point corresponding to the step S101 to S103 is different from the gray-scale value of the second gray-scale binding point corresponding to the step S201 to S203.
3. The utility model provides a multi-probe gamma adjustment method of display panel, its characterized in that, display panel includes N display area that each other does not overlap, N display area is 1 st display area to N display area respectively, N is greater than or equal to 3, the method includes:
The following operations of i=1, 2, …, N are repeatedly performed in parallel, and the repeated operations of i=n1 and i=n2 are performed independently of each other, N1 and N2 being selected from different values in {1,2, …, N }:
controlling an ith display area to display an ith gray-scale picture, wherein the ith gray-scale picture corresponds to an ith gray-scale binding point;
collecting the current ith brightness of the ith gray-scale picture through an ith optical probe; and
According to the ith brightness, gamma adjustment is carried out on the ith gray scale binding point to obtain an ith target gamma parameter corresponding to the ith gray scale binding point, wherein the ith target gamma parameter is used as a gamma parameter of all display areas of the display panel under the ith gray scale binding point;
When the operation is executed each time, the gray scale value of the corresponding ith gray scale binding point is different from the gray scale value of the corresponding ith gray scale binding point when all the previous operations are executed; the gray-scale value of the 1 st gray-scale binding point corresponding to the operation of i=1 is executed at any one time, the gray-scale value of the 2 nd gray-scale binding point corresponding to the operation of i=2 is executed at any one time, the gray-scale value … … of the 3 rd gray-scale binding point corresponding to the operation of i=3 is executed at any one time, and the gray-scale value of the N th gray-scale binding point corresponding to the operation of i=n is executed at any one time, which are different from each other;
Wherein the sum of the total number of operations of i=1, the total number of operations of i=2, the total number of operations of i=3 … …, and the total number of operations of i=n is equal to the total number of gray scale steps of the display panel.
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| CN115985214A (en) | 2023-04-18 |
| CN115331611B (en) | 2023-01-03 |
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