CN114203090A - Gamma debugging method, device and storage medium - Google Patents
Gamma debugging method, device and storage medium Download PDFInfo
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Abstract
The application discloses a Gamma debugging method, a Gamma debugging device and a storage medium. The Gamma debugging method comprises the following steps: controlling the display module to be tested to display a fixed gray-scale picture; determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters; adjusting data signal parameters of the display module to be tested so as to determine target data signal parameters respectively corresponding to each gray scale binding point when actual display parameters of the fixed gray scale picture are matched with target display parameters of the gray scale binding points; and burning the corresponding relation between each gray scale binding point and the target data signal parameter to a module chip of the display module to be tested under the preset Gamma parameter. According to the embodiment of the application, the same fixed gray-scale picture is displayed when the Gamma debugging is carried out on the display module to be tested, and the picture does not need to be switched, so that the graph cutting time in the Gamma debugging process can be saved, the time length of the Gamma debugging is reduced, and the Gamma debugging efficiency and the production efficiency of the display module are improved.
Description
Technical Field
The present application belongs to the field of display technologies, and in particular, to a Gamma debugging method, device and storage medium.
Background
At present, during the pre-factory test of the display module, in order to ensure the display effect of the display module, Gamma debugging needs to be performed on the display module.
In the existing Gamma debugging mode, the display effect of a plurality of gray scale binding points of a display module group needs to be tested respectively under corresponding Gamma parameters. When testing each gray scale binding point, the gray scale picture corresponding to the gray scale binding point needs to be displayed.
However, the display module consumes a certain amount of Time to display different gray-scale pictures, which results in a significant increase in the Gamma debugging Time of the display module and also in an increase in the TT (tacttime/Tack Time) of the display module.
Disclosure of Invention
The embodiment of the application provides a Gamma debugging method, a device and a storage medium, which can solve the technical problem of long time of the existing Gamma debugging.
In a first aspect, an embodiment of the present application provides a Gamma debugging method, where the Gamma debugging method includes:
controlling the display module to be tested to display a fixed gray-scale picture;
determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters;
adjusting data signal parameters of the display module to be tested so as to determine target data signal parameters respectively corresponding to each gray scale binding point when actual display parameters of the fixed gray scale picture are matched with target display parameters of the gray scale binding points;
and burning the corresponding relation between each gray scale binding point and the target data signal parameter to a module chip of the display module to be tested under the preset Gamma parameter.
In some embodiments, the adjusting the data signal parameters of the display module to be tested to determine the target data signal parameters respectively corresponding to each gray scale binding point when the actual display parameters of the fixed gray scale picture are matched with the target display parameters of the gray scale binding points includes:
determining a target gray scale binding point from the plurality of gray scale binding points; wherein the target gray scale binding point is any one of the plurality of gray scale binding points;
adjusting data signal parameters of the display module to be tested so that the difference value between the actual display parameters of the fixed gray-scale picture and the target display parameters of the target gray-scale binding points is within a preset deviation range;
and determining the current data signal parameter as a target data signal parameter corresponding to the target gray scale binding point.
In some embodiments, the adjusting the data signal parameters of the display module to be tested includes:
adjusting a gray scale register value of a fixed gray scale binding point corresponding to the fixed gray scale picture;
after determining that the current data signal parameter is the target data signal parameter corresponding to the target gray scale binding point, the method further includes:
and storing the current gray scale register value of the fixed gray scale binding point to a storage module of the display module to be tested.
In some embodiments, the burning the corresponding relationship between the gray scale binding points and the target data signal parameters to the module chip of the display module to be tested under the preset Gamma parameter includes:
when gray scale register values of fixed gray scale binding points respectively corresponding to the gray scale binding points are stored in the storage module, recording the corresponding relation between the gray scale binding points and the gray scale register values from the storage module to a module chip of the display module to be tested under the preset Gamma parameter; the module chip is a one-time programmable read-only memory (OTPROM).
In some embodiments, said determining a target gray level binding from said plurality of gray level bindings comprises:
sequencing the plurality of gray scale binding points according to corresponding target display parameters from large to small to obtain a sequencing result;
sequentially selecting gray scale binding points of which corresponding target data signal parameters are not determined from the sorting result;
and determining the selected gray scale binding points as the target gray scale binding points.
In some embodiments, the fixed gray level binding corresponding to the fixed gray level picture is a median of the plurality of gray level bindings.
In some embodiments, the fixed gray scale tie point is smaller than an average value of a maximum gray scale and a minimum gray scale of the display module to be tested.
In some embodiments, before determining the target display parameters corresponding to the plurality of gray scale binding points according to the preset Gamma parameter, the method further includes:
determining a preset Gamma parameter from n Gamma parameters; n is the number of Gamma parameters corresponding to one refresh frequency of the display module to be tested.
In a second aspect, an embodiment of the present application provides a Gamma debugging apparatus, including:
the display module is used for controlling the display module to be tested to display the fixed gray-scale picture;
the acquisition module is used for determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters;
the adjusting module is used for adjusting data signal parameters of the display module to be detected so as to determine target data signal parameters respectively corresponding to each gray scale binding point when the actual display parameters of the fixed gray scale picture are matched with the target display parameters of the gray scale binding points;
and the burning module is used for burning the corresponding relation between the gray scale binding points and the target data signal parameters to the module chip of the display module to be tested under the preset Gamma parameter.
In a third aspect, an embodiment of the present application provides a Gamma debugging device, where the Gamma debugging device includes: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the Gamma debugging method as described above.
In a fourth aspect, the present application provides a computer storage medium having computer program instructions stored thereon, where the computer program instructions, when executed by a processor, implement the Gamma debugging method as described above.
Compared with the prior art, the Gamma debugging method provided by the embodiment of the application can respectively determine the target display parameters corresponding to each gray scale binding point according to the preset Gamma parameters and the plurality of gray scale binding points by controlling the display module to be tested to display the fixed gray scale picture. The actual display parameters of the fixed gray-scale picture are matched with the target display parameters of each gray-scale binding point by adjusting the data signal parameters of the display module to be detected, so that the matching of the target display parameters of one fixed gray-scale picture and a plurality of gray-scale binding points is realized. When the actual display parameters of the fixed gray-scale picture are matched with the target display parameters of each gray-scale binding point, the target data signal parameters of the fixed gray-scale picture at the moment can be acquired, and the target data signal parameters are corresponding to the gray-scale binding points. After the corresponding relation between the gray scale binding points and the target data signal parameters is obtained, the gray scale binding points can be burned into a module chip of the display module to be tested, and Gamma debugging of the display module to be tested is achieved. In the process of determining target data signal parameters corresponding to the gray scale binding points, the display module to be tested displays the same fixed gray scale picture without switching the picture, so that the picture cutting time in the Gamma debugging process can be saved, the Gamma debugging time is reduced, the Gamma debugging efficiency is improved, the TT time of the display module can be reduced, and the production efficiency of the display module is improved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a Gamma debugging method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a Gamma debugging method according to another embodiment of the present application;
fig. 3 is a schematic flowchart of a Gamma debugging method according to another embodiment of the present application;
fig. 4 is a schematic flowchart of a Gamma debugging method according to yet another embodiment of the present application;
fig. 5 is a schematic flowchart of a Gamma debugging method according to yet another embodiment of the present application;
fig. 6 is a schematic structural diagram of a Gamma debugging apparatus according to an embodiment of the present application;
fig. 7 is a schematic hardware structure diagram of a Gamma debugging device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The embodiments will be described in detail below with reference to the accompanying drawings.
At present, along with the continuous development of display technology, the output of the display module is also continuously promoted. In order to promote display module's production efficiency, need improve display module's production takt time TT to it is long to reduce TT, promotes display module's production efficiency.
The applicant finds that the existing display module needs Gamma debugging before leaving the factory so as to ensure the display effect of the leaving-factory display module. In the Gamma debugging process, proper gray scale binding points can be selected from a plurality of gray scales, and the parameters of each gray scale binding point are adjusted according to the Gamma parameters so as to realize the Gamma adjustment of the plurality of gray scale binding points. However, in the adjustment process, each gray scale binding point has a corresponding gray scale picture, and when the gray scale binding point is switched in the debugging process, the displayed picture needs to be switched to the gray scale picture corresponding to the gray scale binding point. When the number of the gray-scale binding points is large, multiple image cutting operations are required in the debugging process, so that the Gamma debugging time is too long. Because the Gamma debugging time is longer, correspondingly, the TT duration of the display module is correspondingly increased.
In order to solve the foregoing technical problem, embodiments of the present application provide a Gamma debugging method, apparatus, and storage medium. First, a Gamma debugging method provided in the embodiment of the present application is described below.
Fig. 1 shows a flowchart of a Gamma debugging method according to an embodiment of the present application. The Gamma debugging method comprises the following steps:
s110, controlling the display module to be tested to display a fixed gray-scale picture;
s120, determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters;
s130, adjusting data signal parameters of the display module to be tested so as to determine target data signal parameters respectively corresponding to each gray scale binding point when actual display parameters of the fixed gray scale picture are matched with target display parameters of the gray scale binding points;
and S140, burning the corresponding relation between each gray scale binding point and the target data signal parameter under the preset Gamma parameter to a module chip of the display module to be tested.
The fixed gray scale picture is a picture pre-stored in the display module to be tested, and the gray scale corresponding to the picture is a fixed gray scale. The target display parameter represents a display parameter corresponding to the gray scale binding point under the preset Gamma parameter. The display parameter may be a parameter characterizing the display effect, for example, the display parameter may include a luminance or color coordinate, the actual display parameter may include an actual luminance or actual color coordinate, and the target display parameter may include a target luminance or target color coordinate.
In this embodiment, the display module to be tested can display the fixed gray-scale picture, and adjust the display parameters of the fixed gray-scale picture by adjusting the data signal parameters. After the preset Gamma parameter is determined, a plurality of gray scale binding points which need to be tested in the debugging process can be determined, and target display parameters respectively corresponding to each gray scale binding point are determined according to the preset Gamma parameter. After the display module to be tested displays the fixed gray-scale picture, the data signal parameters of the display module to be tested can be adjusted so as to change the actual display parameters of the fixed gray-scale picture and optically acquire the actual display parameters of the fixed gray-scale picture. When the data signal parameters are adjusted to enable the actual display parameters of the fixed gray-scale picture to be matched with the target display parameters of a certain gray-scale binding point, the current data signal parameters can be determined to be the target data signal parameters corresponding to the gray-scale binding point. After the target data signal parameter corresponding to each gray scale binding point is determined, the corresponding relation between the gray scale binding point and the target data signal parameter under the preset Gamma parameter can be burned into a module chip of the display module to be tested, so that the Gamma debugging of the display module to be tested is realized. In the process of matching and determining target data signal parameters corresponding to the gray scale binding points, the display module to be tested displays the same fixed gray scale picture without switching the picture, so that the graph cutting time in the Gamma debugging process can be saved, the Gamma debugging duration is reduced, the Gamma debugging efficiency is improved, the TT time of the display module can be reduced, and the production efficiency of the display module is improved.
In S110, the Gamma adjustment device may control the display module to be tested to display a fixed gray-scale picture. The fixed gray-scale picture is a gray-scale picture pre-stored by the display module to be tested, and the gray scale corresponding to the fixed gray-scale picture is a fixed gray scale.
In S120, the gray level binding points are the gray level debugging points selected in the debugging process, and each gray level binding point may correspond to one gray level. For example, in 256 gray levels of 0 to 255, the number of gray level bindings may be set to 10 to 30. After the device determines the preset Gamma parameter, the corresponding relation between the gray scale and the display parameter can be determined according to the Gamma parameter, and each gray scale binding point is respectively substituted into the corresponding relation to obtain the target display parameter respectively corresponding to each gray scale binding point. Wherein, the target display parameter is the display parameter expected under the gray scale binding point.
In S130, the device may adjust the data signal parameters of the display module to be tested after determining the plurality of gray scale binding points and the target display parameters corresponding to each gray scale binding point. Because the display module to be tested displays the fixed gray-scale picture at this moment, the actual display parameters of the fixed gray-scale picture can be adjusted by adjusting the data signal parameters of the display module to be tested.
The device can confirm the grey scale tie point of this debugging from a plurality of grey scale tie points, when adjusting the data signal parameter of the display module assembly that awaits measuring, the device can also gather the actual display parameter of fixed grey scale picture through optical equipment to constantly match the actual display parameter of gathering with the target display parameter that the grey scale tie point of this debugging corresponds in the adjustment process of data signal parameter. And when the acquired actual display parameters are matched with the target display parameters corresponding to the debugged gray scale binding points, the actual display parameters of the fixed gray scale picture are consistent with the target display parameters under the current data signal parameters. That is, when the data signal parameters of the display module to be tested are adjusted to the current data parameters, the actual display parameters of the display module to be tested are consistent or close to the target display parameters of the gray scale tie points.
After the target data signal parameter corresponding to a certain gray scale binding point is determined, the target display parameter of the next gray scale binding point can be obtained. And at the moment, the display module to be tested continues to display the fixed gray scale picture, the device can enable the actual display parameter of the fixed gray scale picture to be matched with the target display parameter of the next gray scale binding point by adjusting the data signal parameter of the display module to be tested, and record the current data signal parameter as the target data signal parameter corresponding to the next gray scale binding point during matching.
After the device determines the target display parameters corresponding to the gray scale binding points each time, the actual display parameters of the fixed gray scale picture can be matched with the target display parameters by adjusting the data signal parameters of the display module to be detected, so that the target data signal parameters corresponding to the gray scale binding points are obtained. After multiple matching, the target data signal parameters respectively corresponding to each gray scale binding point can be obtained.
As an alternative embodiment, referring to fig. 2, in order to obtain the target display parameters corresponding to the gray-scale binding points, the step S130 may include:
s210, determining target gray scale binding points from the plurality of gray scale binding points; wherein the target gray scale binding point is any one of the plurality of gray scale binding points;
s220, adjusting data signal parameters of the display module to be tested so that the difference value between the actual display parameters of the fixed gray-scale picture and the target display parameters of the target gray-scale binding points is within a preset deviation range;
and S230, determining the current data signal parameter as a target data signal parameter corresponding to the target gray scale binding point.
In this embodiment, the device may sequentially select a target gray scale binding point from a plurality of gray scale binding points, and adjust the data signal parameters to match the actual display parameters of the fixed gray scale picture with the target display parameters of the target gray scale binding point, and may determine that the current data signal parameters are the target data signal parameters corresponding to the target gray scale binding point when matching. Target gray scale binding points are continuously switched, actual display parameters of the display module to be tested are debugged and matched, and target data signal parameters corresponding to each gray scale binding point can be acquired.
In S210, the device may select a target gray-scale binding from a plurality of gray-scale bindings, the target gray-scale binding being one gray-scale binding arbitrarily selected by the device from the plurality of gray-scale bindings. It is understood that the device may select the target gray level binding point from the plurality of gray level binding points by random selection or according to a preset selection rule. For example, the preset selection rule may be that the selection is performed according to the gray scale size corresponding to the gray scale binding point.
It should be noted that, after the device selects a target gray scale binding point and matches and determines the target data signal parameter corresponding to the target gray scale binding point, the target gray scale binding point is not selected by the device. That is, when the device selects a target gray-scale binding from a plurality of gray-scale bindings, the device does not select a gray-scale binding for which the corresponding target data signal parameter has been determined.
As an alternative embodiment, in order to quickly implement the matching process of gray level binding points, the above S210 may include:
s211, sequencing the gray scale binding points according to corresponding target display parameters from large to small to obtain a sequencing result;
s212, sequentially selecting the gray scale binding points of the undetermined corresponding target data signal parameters from the sorting result;
s213, determining the selected gray scale binding point as the target gray scale binding point.
In this embodiment, when acquiring the plurality of gray-scale bindings, the apparatus may sort the plurality of gray-scale bindings in descending order, and sequentially select the target gray-scale binding in the sorting result. The step of sorting the gray scale binding points refers to sorting the gray scales corresponding to the gray scale binding points. It can be understood that, in two gray scale binding points, when a gray scale corresponding to a certain gray scale binding point is larger than a gray scale corresponding to another gray scale binding point, a target display parameter corresponding to the gray scale binding point is also larger than a target display parameter corresponding to another gray scale binding point. That is, the gray scale and the target display parameter are positively correlated. Therefore, when selecting a target gray level binding point, the selection can be made from large to small. At this time, the target display parameter corresponding to the next target gray scale binding point selected by the device is smaller than the target display parameter corresponding to the previous target gray scale binding point. And when adjusting the data signal parameter of the display module to be tested, if the data signal parameter is increased, the actual display parameter of the fixed gray-scale picture is also increased. That is, the data signal parameter and the actual display parameter are also in a positive correlation. When the device is used for adjusting the data signal parameters, because the target display parameters corresponding to the next target gray scale binding points are reduced compared with the target display parameters corresponding to the previous target gray scale binding points, the actual display parameters of the fixed gray scale picture can be continuously reduced by gradually reducing the size of the data signal parameters, and finally the actual display parameters are reduced to be matched with the target display parameters corresponding to the next target gray scale binding points from the target display parameters corresponding to the previous target gray scale binding points.
In S211, the device may sort the plurality of gray scale binding points from large to small according to the gray scale corresponding to each gray scale binding point after determining the target display parameter corresponding to each gray scale binding point according to the preset Gamma parameter, and obtain a sorted result.
In S212, after obtaining the sorting result, the apparatus may select the gray scale bindings for which the corresponding target data signal parameters are not determined according to the sorting result order. The undetermined corresponding target data signal parameter means that the corresponding target data signal parameter is not yet determined by the gray scale binding point, that is, the gray scale binding point is not yet used as a target gray scale binding point to be matched with the actual display parameter of the fixed gray scale picture. For example, when all gray level bindings in the sorting result are not matched, the first gray level binding is selected according to the sorting result. The first gray scale binding point is the gray scale binding point with the maximum corresponding gray scale in the plurality of gray scale binding points. And if the matched gray scale binding points with the corresponding target data signal parameters exist in the sequencing result, selecting the gray scale binding point with the maximum corresponding gray scale from the remaining unmatched gray scale binding points. And the gray scale corresponding to the last gray scale binding point in the sequencing result is the minimum, the last gray scale binding point in the sequencing result is also completely matched, and the corresponding relation between each gray scale binding point and the target display parameter under the preset Gamma parameter can be obtained after the target data signal parameter corresponding to the last gray scale binding point is determined.
In S213, after the corresponding gray level binding point is selected from the sorting result, the gray level binding point is used as the target gray level binding point.
It should be noted that, in other embodiments, the gray level bindings may also be sorted according to the corresponding target display parameters from small to large, and sequentially selected according to the sorting result, so as to obtain the target gray level binding. In this embodiment, the target display parameter corresponding to the next gray scale binding point is greater than the target display parameter corresponding to the previous gray scale binding point, so that the device can increase the actual display parameter of the fixed gray scale picture by increasing the data signal parameter of the display module to be detected until the actual display parameter is increased from being matched with the target display parameter of the previous gray scale binding point to being matched with the target display parameter of the next gray scale binding point.
By sequencing the gray scale binding points and selecting the target gray scale binding points according to the sequencing result, the target display parameters corresponding to the target gray scale binding points can be monotonically increased or monotonically decreased, and the mode of adjusting the data signal parameters of the display module to be tested can also be monotonically increased or monotonically decreased at the moment, so that the data signal parameters are prevented from being adjusted back and forth, the matching process can be quickly realized, and the matching time is shortened.
As an optional embodiment, in order to select an appropriate fixed gray level binding point, the fixed gray level binding point corresponding to the fixed gray level picture may be a median of a plurality of gray level binding points.
In this embodiment, the gray scale corresponding to the fixed gray scale binding point is the same as the gray scale corresponding to the fixed gray scale picture. When the fixed gray scale picture is selected, the median can be determined from the plurality of gray scale binding points, and the median of the plurality of gray scale binding points is used as the fixed gray scale binding point so as to obtain the fixed gray scale picture corresponding to the fixed gray scale binding point.
It can be understood that the determining of the median from the plurality of gray scale bindings refers to determining the gray scale corresponding to each gray scale binding point, then sorting the gray scale bindings according to the gray scale values corresponding to each gray scale binding point, and determining the gray scale binding point as the median from the sorted gray scale bindings. That is, the number of gray levels having gray level values greater than the fixed gray level binding points among the plurality of gray level binding points is equal to the number of gray levels having gray level values less than the fixed gray level binding points. At this time, the gray scale value of the fixed gray scale binding point and the gray scale value corresponding to the first and last gray scale binding points are as small as possible, so that the gray scale corresponding to the fixed gray scale picture is as close as possible to the gray scale corresponding to each gray scale binding point. For example, when the number of gray scale binding points is 15, the gray scale binding points may be sorted from large to small according to the gray scale corresponding to the gray scale binding points, and an 8 th gray scale binding point is selected as a fixed gray scale binding point.
As an optional embodiment, in order to adapt to the sensitivity of human eyes to gray scales, the fixed gray scale tie point may be set to be smaller than an average value of a maximum gray scale and a minimum gray scale of the display module to be tested.
In this embodiment, the maximum gray scale of the display module to be tested may be 255, the minimum gray scale may be 0, and the fixed gray scale tie point may be a gray scale tie point corresponding to a gray scale value smaller than 127.5. Since the sensitivity of human eyes to low gray levels is greater than that of high gray levels, gray level binding points in a low gray level region can be selected by fixing the gray level binding points.
As an optional embodiment, the fixed gray scale tie points may also be set to a median of the plurality of gray scale tie points and the fixed gray scale tie points are less than an average of a maximum gray scale and a minimum gray scale of the display module to be tested.
In this embodiment, the gray level corresponding to the fixed gray level binding point may be a low gray level region, and the number of gray level binding points smaller than the fixed gray level is the same as the number of gray level binding points larger than the fixed gray level. In other words, among the plurality of gray scale binding points, the number of gray scale binding points in the low gray scale region is larger, and the number of gray scale binding points in the high gray scale region is smaller, so that the selection of the gray scale binding points is more suitable for the sensitivity of human eyes to the gray scale region. For example, when the number of gray level bindings is 15, the median of the 15 gray level bindings can be set, that is, the gray level corresponding to the fixed gray level binding is 79, and the number of gray level bindings in the 0-79 gray level area is the same as the number of gray level bindings in the 79-255 gray level area. The setting of gray scale binding points in the low gray scale region is dense, the setting of gray scale binding points in the high gray scale region is sparse, and the sensitivity of human eyes to different gray scale regions can be matched in the debugging process, so that the precision of Gamma debugging is improved.
In S220, after determining the target gray scale tie point, the device may adjust the data signal parameters when the display module to be tested displays the fixed gray scale picture, so as to adjust the actual display parameters of the fixed gray scale picture. When the data signal parameters are adjusted, the device can also acquire the actual display parameters of the fixed gray scale picture through optical equipment and compare the actual display parameters with the target display parameters of the target gray scale binding points. When the data signal parameters are adjusted so that the difference value between the actual display parameters and the target display parameters is within the preset deviation range, the actual display parameters of the fixed gray-scale picture can be determined to be matched with the target display parameters of the target gray-scale binding points. It can be understood that the preset deviation range is an acceptable deviation range of the display module to be tested during displaying. According to the model of the display module to be tested, the user use scene, the user requirement and other factors, the preset deviation range can be correspondingly adjusted.
In S230, when the actual display parameter of the fixed gray-scale picture is matched with the target display parameter of the target gray-scale binding point by adjusting the data signal parameter of the display module to be detected, the current data signal parameter of the display module to be detected can be obtained and used as the target data signal parameter corresponding to the target gray-scale binding point.
It will be appreciated that the data signal parameter may be used to control the voltage value of the data signal, i.e. the current data signal parameter corresponds to the voltage value of the current data signal. When the voltage value of the data signal is changed into the voltage value of the current data signal by adjusting the data signal parameters of the display module to be tested, the actual display parameters of the image displayed by the display module to be tested are matched with the target display parameters of the target gray scale tie points.
As an alternative embodiment, referring to fig. 3, in order to adjust the data signal parameters of the display module to be tested, the step S220 may include:
s310, adjusting a gray scale register value of a fixed gray scale binding point corresponding to the fixed gray scale picture to enable a difference value between an actual display parameter of the fixed gray scale picture and a target display parameter of the target gray scale binding point to be within a preset deviation range;
after S230, the method may further include:
and S320, storing the current gray scale register value of the fixed gray scale binding point to a storage module of the display module to be tested.
In this embodiment, the gray scale corresponding to the fixed gray scale picture is consistent with the gray scale corresponding to the fixed gray scale binding point in the plurality of gray scales. The device can fix the gray scale register value of the gray scale binding point by adjusting; to effect adjustment of the data signal parameters. When the device determines that the fixed gray-scale picture is matched with the target gray-scale binding point, the current register value of the fixed gray-scale binding point is the target data signal parameter corresponding to the target gray-scale binding point. The apparatus may store the current gray scale register value of the fixed gray scale tie point in the storage module.
In S310, when the display module to be tested displays the fixed gray scale picture, the display module to be tested can determine the fixed gray scale tie point corresponding to the fixed gray scale picture, and read the data signal parameter from the gray scale register of the fixed gray scale tie point. When the device adjusts the gray scale register value of the fixed gray scale tie point, the data signal parameters are also adjusted accordingly.
In S320, when the device adjusts the gray scale register value of the fixed gray scale binding point so that the actual display parameter of the fixed gray scale picture matches the target display parameter of the target gray scale binding point, it may determine that the current gray scale register value of the fixed gray scale binding point is the target data signal parameter corresponding to the target gray scale binding point, and store the current gray scale register value of the fixed gray scale binding point to the storage module of the display module to be tested.
It can be understood that after the device selects a target gray scale binding point from the plurality of gray scale binding points and completes matching, the current gray scale register value of the fixed gray scale binding point can be stored to the storage module of the display module to be tested as a target data signal parameter corresponding to the target gray scale binding point. After the gray scale binding points are matched, target data signal parameters corresponding to each gray scale binding point are stored in the storage module.
In S140, the device may obtain target data signal parameters corresponding to each gray scale binding point after matching each gray scale binding point of the plurality of gray scale binding points. The target display parameter corresponding to each gray scale binding point is obtained according to a preset Gamma parameter, and the corresponding relation between each gray scale binding point and the target data signal parameter under the preset Gamma parameter can be obtained according to the target data signal parameter corresponding to each gray scale binding point. The device can burn the corresponding relation between each gray scale binding point and the target data signal parameter into a module chip of the display module to be detected, so that the display module to be detected can obtain the corresponding relation between each gray scale binding point and the target data signal parameter from the module chip when the Gamma parameter is set to be the preset Gamma parameter, and the display parameter when the display module to be detected displays the image is adjusted to be the target display parameter corresponding to the target data signal parameter according to the target data signal parameter.
It is to be understood that, in the above embodiment, after the device obtains the corresponding relationship between the gray scale binding points and the target data signal parameters, since the gray scale values corresponding to the gray scale binding points are in a positive correlation with the target data signal, the target data signal parameters corresponding to other gray scales except the gray scale binding points can be obtained by interpolation or other methods according to the corresponding relationship between the gray scale binding points and the target data signal parameters, which is not limited herein.
As an alternative embodiment, referring to fig. 4, in order to store the corresponding relationship to the module chip of the display module to be tested, the step S140 may include:
s410, when the gray scale register values of the fixed gray scale binding points respectively corresponding to the plurality of gray scale binding points are stored in the storage module, recording the corresponding relation between the plurality of gray scale binding points and the plurality of gray scale register values from the storage module to the module chip of the display module to be tested under the preset Gamma parameter; the module chip is a one-time programmable read-only memory (OTPROM).
In this embodiment, the device acquires the target gray level binding point each time, and obtains the gray level register value of the fixed gray level binding point through the matching process. The gray scale register values corresponding to the plurality of gray scale binding points can be obtained. After the plurality of gray scale register values are stored in the storage module, the corresponding relation between each gray scale binding point and the gray scale register value under the preset Gamma parameter can be generated, after the corresponding relation is burnt to the module chip of the display module to be tested, the display module to be tested can obtain the corresponding relation from the module chip when the Gamma parameter is set to be the preset Gamma parameter, and the data signal parameter is adjusted according to the corresponding relation.
It can be understood that the module chip may be an OTPROM, and after the corresponding relationship is burned into the OTPROM, the display module to be tested may read the corresponding relationship between the gray scale binding point and the gray scale register value from the OTPROM when the Gamma parameter is set to the preset Gamma parameter.
As an alternative embodiment, referring to fig. 5, in order to perform Gamma debugging on a plurality of refresh frequencies supported by the display module to be tested, before S120, the method may further include:
s510, determining a preset Gamma parameter from n Gamma parameters; n is the number of Gamma parameters corresponding to one refresh frequency of the display module to be tested.
In this embodiment, the display module to be tested can support multiple refresh frequencies, for example, the display module to be tested can support refresh frequencies of 60Hz, 90Hz, 120Hz, 144Hz, and the like. It can be understood that, at each refresh frequency, the display module to be tested needs to be Gamma-debugged. For example, at a refresh frequency of 60Hz, the display module to be tested needs to debug n Gamma parameters, and obtain the corresponding relationship between the gray scale binding points and the target data signal parameters under each Gamma parameter.
In S510, the apparatus may determine a preset Gamma parameter from the n Gamma parameters. The preset Gamma parameter can be a mapping relation between gray scales and display parameters, and the target display parameters corresponding to each gray scale binding point can be determined according to the preset Gamma parameter and the gray scale corresponding to each gray scale binding point.
It can be understood that, when different Gamma parameters in the n Gamma parameters are debugged, the display module to be tested can still display the same fixed gray-scale picture. That is, after the corresponding relation between the gray scale binding points and the target data signal parameters under a certain preset Gamma parameter is completely burned, when the plurality of gray scale binding points under the next Gamma parameter are matched, the display module to be tested does not need to switch pictures, and the same fixed gray scale picture can still be adopted.
Similarly, after the n Gamma parameters of the display module to be tested at a certain refresh frequency are debugged, the display module to be tested can continue to display the fixed gray-scale picture when the Gamma parameters of the display module to be tested at other refresh frequencies are debugged. Namely, the display module to be tested can finish debugging of multiple Gamma parameters under multiple refreshing frequencies through one fixed gray scale picture, so that a great amount of picture cutting time is saved.
Based on the Gamma debugging method provided by the above embodiment, correspondingly, the application also provides a specific implementation manner of the Gamma debugging device. Please see the examples below.
Referring first to fig. 6, a Gamma debugging apparatus 600 provided in the embodiment of the present application includes the following modules:
the display module 601 is used for controlling the display module to be tested to display a fixed gray-scale picture;
an obtaining module 602, configured to determine, according to a preset Gamma parameter, target display parameters corresponding to multiple gray scale binding points respectively;
an adjusting module 603, configured to adjust data signal parameters of the display module to be tested, so as to determine target data signal parameters corresponding to each gray scale tie point when an actual display parameter of the fixed gray scale picture matches a target display parameter of the gray scale tie point;
the burning module 604 is configured to burn the corresponding relationship between the gray scale binding points and the target data signal parameters to the module chip of the display module to be tested under the preset Gamma parameter.
In this embodiment, the display module to be tested can display the fixed gray-scale picture, and adjust the display parameters of the fixed gray-scale picture by adjusting the data signal parameters. After the preset Gamma parameter is determined, a plurality of gray scale binding points which need to be tested in the debugging process can be determined, and target display parameters respectively corresponding to each gray scale binding point are determined according to the preset Gamma parameter. After the display module to be tested displays the fixed gray-scale picture, the data signal parameters of the display module to be tested can be adjusted, and the actual display parameters of the fixed gray-scale picture are optically acquired. When the data signal parameters are adjusted to enable the actual display parameters of the fixed gray-scale picture to be matched with the target display parameters of a certain gray-scale binding point, the current data signal parameters can be determined to be the target data signal parameters corresponding to the gray-scale binding point. After the target data signal parameter corresponding to each gray scale binding point is determined, the corresponding relation between the gray scale binding point and the target data signal parameter under the preset Gamma parameter can be burned into a module chip of the display module to be tested, so that the Gamma debugging of the display module to be tested is realized. In the process of determining the target data signal parameters corresponding to the gray scale binding points, the display module to be tested does not need to switch pictures, so that the picture cutting time in the Gamma debugging process can be saved, the time for Gamma debugging is shortened, the Gamma debugging efficiency is improved, the TT time of the display module can be reduced, and the production efficiency of the display module is improved.
As an implementation manner of the present application, in order to obtain a target display parameter corresponding to a gray-scale binding point, the adjusting module 603 may further include:
a first determining unit configured to determine a target gray-scale binding point from among the plurality of gray-scale binding points; wherein the target gray scale binding point is any one of the plurality of gray scale binding points;
the adjusting unit is used for adjusting data signal parameters of the display module to be detected so as to enable the difference value between the actual display parameters of the fixed gray-scale picture and the target display parameters of the target gray-scale binding points to be within a preset deviation range;
and the second determining unit is used for determining the current data signal parameter as the target data signal parameter corresponding to the target gray scale binding point.
As an implementation manner of the present application, in order to adjust a data signal parameter of the display module to be measured, the adjusting unit may further include:
the first adjusting subunit is used for adjusting the gray scale register value of the fixed gray scale binding point corresponding to the fixed gray scale picture;
the adjusting module may further include:
and the storage unit is used for storing the current gray scale register value of the fixed gray scale binding point to the storage module of the display module to be tested.
As an implementation manner of the present application, in order to store the corresponding relationship to the module chip of the display module to be tested, the burning module 604 may include:
the burning unit is used for burning the corresponding relation between the plurality of gray scale binding points and the plurality of gray scale register values from the storage module to the module chip of the display module to be tested under the preset Gamma parameter when the gray scale register values of the fixed gray scale binding points respectively corresponding to the plurality of gray scale binding points are all stored in the storage module; the module chip is a one-time programmable read-only memory (OTPROM).
As an implementation manner of the present application, in order to quickly implement a matching process of gray level bindings, the first determining unit may include:
the sorting subunit is used for sorting the plurality of gray scale binding points according to corresponding target display parameters from large to small to obtain a sorting result;
the selecting subunit is used for sequentially selecting the gray scale binding points of the undetermined corresponding target data signal parameters from the sorting result;
and the determining subunit is used for determining the selected gray scale binding point as the target gray scale binding point.
As an implementation manner of the present application, in order to perform Gamma debugging on a plurality of refresh frequencies supported by the display module to be tested, the adjusting module 603 may further include:
the selection module is used for determining preset Gamma parameters from the n Gamma parameters; n is the number of Gamma parameters corresponding to one refresh frequency of the display module to be tested.
The Gamma debugging apparatus 600 provided in the embodiment of the present application can implement each step in the method embodiments of fig. 1 to fig. 5, and is not described here again to avoid repetition.
Fig. 7 shows a hardware structure diagram of a Gamma debugging device provided in an embodiment of the present application.
The Gamma debugging device may include a processor 701 and a memory 702 storing computer program instructions.
Specifically, the processor 701 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured to implement one or more Integrated circuits of the embodiments of the present Application.
The memory may include Read Only Memory (ROM), Random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors), it is operable to perform operations described with reference to the methods according to an aspect of the present disclosure.
The processor 701 may read and execute the computer program instructions stored in the memory 702 to implement any one of the Gamma debugging methods in the above embodiments.
In one example, the Gamma debugging device may further include a communication interface 703 and a bus 710. As shown in fig. 7, the processor 701, the memory 702, and the communication interface 703 are connected by a bus 710 to complete mutual communication.
The communication interface 703 is mainly used for implementing communication between modules, apparatuses, units and/or devices in this embodiment of the application.
The Gamma debugging device may be based on the above embodiments, so as to implement the Gamma debugging method and apparatus described in conjunction with fig. 1 to 6.
In addition, in combination with the Gamma debugging method in the foregoing embodiments, the embodiments of the present application may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; when executed by a processor, the computer program instructions implement any one of the Gamma debugging methods in the above embodiments, and can achieve the same technical effect, and are not described herein again to avoid repetition. The computer-readable storage medium may include a non-transitory computer-readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, which is not limited herein.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood 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 for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As will be apparent to those skilled in the art, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (10)
1. A Gamma debugging method is characterized by comprising the following steps:
controlling the display module to be tested to display a fixed gray-scale picture;
determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters;
adjusting data signal parameters of the display module to be tested so as to determine target data signal parameters respectively corresponding to each gray scale binding point when actual display parameters of the fixed gray scale picture are matched with target display parameters of the gray scale binding points;
and burning the corresponding relation between each gray scale binding point and the target data signal parameter to a module chip of the display module to be tested under the preset Gamma parameter.
2. The Gamma debugging method of claim 1, wherein the adjusting data signal parameters of the display module to be tested to determine target data signal parameters respectively corresponding to each gray level tie point when the actual display parameters of the fixed gray level picture are matched with the target display parameters of the gray level tie points comprises:
determining a target gray scale binding point from the plurality of gray scale binding points; wherein the target gray scale binding point is any one of the plurality of gray scale binding points;
adjusting data signal parameters of the display module to be tested so that the difference value between the actual display parameters of the fixed gray-scale picture and the target display parameters of the target gray-scale binding points is within a preset deviation range;
and determining the current data signal parameter as a target data signal parameter corresponding to the target gray scale binding point.
3. The Gamma debugging method of claim 2, wherein the adjusting the data signal parameters of the display module under test comprises:
adjusting a gray scale register value of a fixed gray scale binding point corresponding to the fixed gray scale picture;
after determining that the current data signal parameter is the target data signal parameter corresponding to the target gray scale binding point, the method further includes:
and storing the current gray scale register value of the fixed gray scale binding point to a storage module of the display module to be tested.
4. The Gamma debugging method of claim 3, wherein the programming of the correspondence between the gray-scale bindings and the target data signal parameters to the module chip of the display module under test under the preset Gamma parameters comprises:
when gray scale register values of fixed gray scale binding points respectively corresponding to the gray scale binding points are stored in the storage module, recording the corresponding relation between the gray scale binding points and the gray scale register values from the storage module to a module chip of the display module to be tested under the preset Gamma parameter; the module chip is a one-time programmable read-only memory (OTPROM).
5. The Gamma debugging method of claim 2, wherein the determining a target gray level binding point from the plurality of gray level binding points comprises:
sequencing the plurality of gray scale binding points according to corresponding target display parameters from large to small to obtain a sequencing result;
sequentially selecting gray scale binding points of which corresponding target data signal parameters are not determined from the sorting result;
and determining the selected gray scale binding points as the target gray scale binding points.
6. The Gamma debugging method of claim 2, wherein the fixed gray level tie points corresponding to the fixed gray level pictures are median values of the plurality of gray level tie points.
7. The Gamma debugging method of claim 2, wherein the fixed gray scale tie point is smaller than an average of a maximum gray scale and a minimum gray scale of the display module under test.
8. The Gamma debugging method of claim 1, wherein before determining the target display parameters corresponding to the plurality of gray-scale binding points according to the preset Gamma parameters, the method further comprises:
determining a preset Gamma parameter from n Gamma parameters; n is the number of Gamma parameters corresponding to one refresh frequency of the display module to be tested.
9. A Gamma debugging apparatus, comprising:
the display module is used for controlling the display module to be tested to display the fixed gray-scale picture;
the acquisition module is used for determining target display parameters respectively corresponding to the gray scale binding points according to preset Gamma parameters;
the adjusting module is used for adjusting data signal parameters of the display module to be detected so as to determine target data signal parameters respectively corresponding to each gray scale binding point when the actual display parameters of the fixed gray scale picture are matched with the target display parameters of the gray scale binding points;
and the burning module is used for burning the corresponding relation between the gray scale binding points and the target data signal parameters to the module chip of the display module to be tested under the preset Gamma parameter.
10. A computer storage medium having computer program instructions stored thereon, which when executed by a processor implement the Gamma debugging method of any of claims 1-8.
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