Gamma Debugging Method, Device, Equipment and Storage Medium of Display Panel

Abstract

The present application discloses a Gamma debugging method, device, equipment and storage medium for a display panel. The method includes: respectively performing Gamma debugging on image screens with different target brightnesses under a first gray-scale binding point according to a first reference voltage and a second reference voltage of the display panel, so as to obtain gray-scale register parameter values corresponding to all the light-emitting pixels respectively at each target brightness; determining a first target reference voltage corresponding to each target brightness according to the gray-scale register parameter values; and respectively performing Gamma debugging on the image screens under multiple gray-scale binding points according to the first target reference voltage and the second reference voltage corresponding to each target brightness, so as to obtain gray-scale register parameter values corresponding to all the light-emitting pixels respectively at each target brightness under multiple gray-scale binding points for each target brightness. According to the embodiments of the present application, on the basis of satisfying the voltage range required for Gamma debugging under different target brightnesses, the voltage difference between the two reference voltages can be reduced, and the power consumption for maintaining the reference voltage of the display panel can be reduced.

Description

Technical Field

[0001] This application belongs to the technical field of display panels, and particularly relates to a Gamma debugging method, device, equipment and storage medium for a display panel. Background Art

[0002] Existing display panel products, such as OLED (Organic Light-Emitting Diode) display panels, etc., usually support multiple different brightness levels. In order to ensure that the display effect of the display panel at each brightness level conforms to the visual perception of the human eye, it is necessary to perform Gamma debugging on multiple gray-scale binding points respectively at different brightness levels, so that the actual display parameters of the display panel meet the corresponding target brightness and chromaticity.

[0003] In the existing Gamma debugging process, the Gamma voltage can be set between two preset reference voltages to make the actual display parameters of the display panel meet the target requirements. However, during the Gamma debugging process, in order to maintain the voltage difference between the two reference voltages, it is necessary for the driving chip of the display panel to maintain it through continuous power consumption, resulting in high power consumption of the panel product. Summary of the Invention

[0004] The embodiments of this application provide a Gamma debugging method, device, equipment and storage medium for a display panel, which can solve the technical problem of high power consumption caused by maintaining the reference voltage required for Gamma debugging of the display panel.

[0005] In a first aspect, the embodiments of this application provide a Gamma debugging method for a display panel, characterized in that the method includes:

[0006] According to the first reference voltage and the second reference voltage of the display panel, perform Gamma debugging on the image screens with different target brightnesses under the first gray-scale binding point respectively, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the first gray-scale binding point;

[0007] According to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness, determine the first target reference voltage corresponding to each target brightness; the first target reference voltage is between the first reference voltage and the second reference voltage;

[0008] According to the first target reference voltage and the second reference voltage corresponding to each target brightness, perform Gamma debugging on the image screens under multiple gray-scale binding points respectively, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under multiple gray-scale binding points.

[0009] In some embodiments, determining a first target reference voltage corresponding to each target brightness according to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness includes:

[0010] Determining the maximum parameter value or the minimum parameter value corresponding to each target brightness according to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness;

[0011] Determining a first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness;

[0012] Determining a first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness.

[0013] In some embodiments, determining a first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness includes:

[0014] Determining a second Gamma voltage value corresponding to the maximum parameter value and a third Gamma voltage value corresponding to the minimum parameter value according to a preset first correspondence and the maximum parameter value and the minimum parameter value corresponding to each target brightness; the first correspondence includes the correspondence between the values of the gray-scale register and the Gamma voltage values;

[0015] Selecting, as the first Gamma voltage value, the Gamma voltage value with a smaller difference from the first reference voltage from the second Gamma voltage value and the third Gamma voltage value.

[0016] In some embodiments, determining a first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness includes:

[0017] Obtaining a preset voltage margin;

[0018] Determining a first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness and the preset voltage margin, where the difference between the first target reference voltage and the first reference voltage is less than the difference between the first Gamma voltage value and the first reference voltage.

[0019] In some embodiments, performing Gamma debugging on the image frames at different target brightnesses under a first gray-scale binding point according to the first reference voltage and the second reference voltage of the display panel to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the first gray-scale binding point, includes:

[0020] According to the first reference voltage and the second reference voltage of the display panel, under the image screen of the first gray-scale binding point and the first target brightness, the values of the gray-scale registers of all light-emitting pixels are adjusted respectively;

[0021] When the actual display parameters of all light-emitting pixels meet the target display parameters corresponding to the first gray-scale binding point and the first target brightness, determine the gray-scale register parameter values corresponding to all light-emitting pixels respectively under the first gray-scale binding point and the first target brightness;

[0022] Adjust the first target brightness to the second target brightness, and adjust the values of the gray-scale registers of all light-emitting pixels respectively, so as to determine the gray-scale register parameter values corresponding to all light-emitting pixels respectively under the first gray-scale binding point and the second target brightness, until the gray-scale register parameter values corresponding to all light-emitting pixels respectively under the first gray-scale binding point for each target brightness are obtained.

[0023] In some embodiments, after performing Gamma debugging on the image screens under multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness to obtain the gray-scale register parameter values corresponding to all light-emitting pixels respectively under each target brightness at multiple gray-scale binding points, it further includes:

[0024] Burn the first target reference voltage corresponding to each target brightness and the gray-scale register parameter values corresponding to all light-emitting pixels respectively under each target brightness at multiple gray-scale binding points into the display panel, so that the display panel performs Gamma compensation between the first target reference voltage and the second reference voltage corresponding to the actual target brightness of the image screen.

[0025] In some embodiments, the first gray-scale binding point is the highest gray-scale binding point among multiple gray-scale binding points.

[0026] In a second aspect, an embodiment of the present application provides a Gamma debugging device, and the device includes:

[0027] A first debugging module, configured to perform Gamma debugging on the image screens of different target brightnesses under the first gray-scale binding point respectively according to the first reference voltage and the second reference voltage of the display panel, so as to obtain the gray-scale register parameter values corresponding to all light-emitting pixels respectively under each target brightness at the first gray-scale binding point;

[0028] A voltage determination module, configured to determine the first target reference voltage corresponding to each target brightness according to the gray-scale register parameter values corresponding to all light-emitting pixels respectively under each target brightness; the first target reference voltage is between the first reference voltage and the second reference voltage;

[0029] A second debugging module, configured to perform Gamma debugging on the image screens under multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels of each target brightness under multiple gray-scale binding points.

[0030] In a third aspect, an embodiment of the present application provides a Gamma debugging device, which includes: a processor and a memory storing computer program instructions;

[0031] When the processor executes the computer program instructions, the Gamma debugging method of the display panel as described above is implemented.

[0032] In a fourth aspect, an embodiment of the present application provides a computer storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the Gamma debugging method of the display panel as described above is implemented.

[0033] Compared with the prior art, for the Gamma debugging of the image screens under different target brightnesses, the Gamma debugging method, device, equipment and storage medium of the display panel provided by the embodiments of the present application can perform Gamma debugging on the first gray-scale binding point by using the first reference voltage and the second reference voltage preset in the display panel, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels of each target brightness under the first gray-scale binding point. According to these gray-scale register parameter values, the first target reference voltage corresponding to each target brightness can be determined. The first target reference voltage is between the first reference voltage and the second reference voltage, and when adjusting the gray-scale register parameter values for all the light-emitting pixels under each target brightness, the Gamma voltage values corresponding to the gray-scale register parameter values are all between the first target reference voltage and the second reference voltage. When performing Gamma debugging on other multiple gray-scale binding points under each target brightness, the first reference voltage can be replaced with the first target reference voltage corresponding to the target brightness. On the basis of being able to satisfy the voltage range of the Gamma voltage values required for the Gamma debugging of different gray-scale binding points under the target brightness, the voltage difference between the two reference voltages can be reduced, so that the power consumed by the display panel to maintain this pressure difference is reduced, thereby reducing the power consumption generated by the display panel to maintain the reference voltage during the Gamma debugging process. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0035] Figure 1 is a schematic flowchart of a Gamma debugging method for a display panel provided by an embodiment of the present application;

[0036] Figure 2 is a schematic flowchart of a Gamma debugging method for a display panel provided by another embodiment of the present application;

[0037] Figure 3 is a schematic flowchart of a Gamma debugging method for a display panel provided by still another embodiment of the present application;

[0038] Figure 4 is a schematic flowchart of a Gamma debugging method for a display panel provided by yet another embodiment of the present application;

[0039] Figure 5 is a schematic flowchart of a Gamma debugging method for a display panel provided by yet another embodiment of the present application;

[0040] Figure 6 is a schematic structural diagram of a Gamma debugging device provided by an embodiment of the present application;

[0041] Figure 7 is a schematic structural diagram of a Gamma debugging device provided by an embodiment of the present application. Detailed implementation manners

[0042] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0043] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not preclude the existence of additional identical elements in the process, method, article or device comprising the said elements.

[0044] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0045] Currently, existing display panel products, such as OLED (Organic Light-Emitting Diode) display panels, etc., can usually support multiple different brightness levels. In order to ensure that the display effect of the display panel at each brightness level conforms to the visual perception of the human eye, it is necessary to perform Gamma debugging on multiple gray-scale binding points at different brightness levels respectively, so that the actual display parameters of the display panel meet the corresponding target brightness and chromaticity.

[0046] In the existing Gamma debugging process, the Gamma voltage can be set between two preset reference voltages so that the actual display parameters of the display panel meet the target requirements. However, during the Gamma debugging process, in order to maintain the voltage difference between the two reference voltages, the driving chip of the display panel needs to maintain it through continuous power consumption, resulting in a high power consumption of the panel product.

[0047] To solve the above technical problems, the embodiments of the present application provide a Gamma debugging method, device, equipment and storage medium for a display panel. First, the Gamma debugging method for the display panel provided by the embodiments of the present application will be introduced below.

[0048] Figure 1 The flowchart of the Gamma debugging method for the display panel provided by an embodiment of the present application is shown. The Gamma debugging method for the display panel includes

[0049] S110, perform Gamma debugging on the image screens with different target brightnesses under the first gray-scale binding point respectively according to the first reference voltage and the second reference voltage of the display panel, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the first gray-scale binding point;

[0050] S120, determine the first target reference voltage corresponding to each target brightness according to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness; the first target reference voltage is located between the first reference voltage and the second reference voltage;

[0051] S130, perform Gamma debugging on the image screens under multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under multiple gray-scale binding points.

[0052] The Gamma debugging method for a display panel provided in an embodiment of the present application can be applied to a Gamma debugging device for a display panel, and this device can perform Gamma debugging on the display panel. The display panel can be a PC, a TV, a smart terminal, a tablet computer, etc. In this embodiment, the specific form of the display panel is not limited.

[0053] In S110, when the device performs Gamma debugging on the display panel, it can obtain a first reference voltage and a second reference voltage of the display panel, and perform Gamma debugging on the image screen corresponding to the first gray-scale binding point at different target brightnesses according to the first reference voltage and the second reference voltage, so as to obtain the gray-scale register parameter values corresponding to each light-emitting pixel in the image screen corresponding to the first gray-scale binding point at each target brightness.

[0054] The above-mentioned first reference voltage and second reference voltage can be used as the boundary values of the adjustment range of the Gamma voltage during the Gamma debugging process, that is, the magnitude of the Gamma voltage value is between the first reference voltage and the second reference voltage. The display panel can be pre-set with multiple different target brightnesses. For example, the display panel can be set with ten different target brightnesses of Nor1, Nor2, Nor3, Nor4, Nor5, Nor6, Nor7, Nor8, Nor9, and HBM, where the target brightnesses corresponding to Nor1-Nor9 increase in sequence, and HBM can be the highest target brightness.

[0055] When performing Gamma debugging on the image screen corresponding to the first gray-scale binding point at a certain target brightness, the value of the gray-scale register corresponding to each light-emitting pixel in the display panel can be controlled so that the Gamma voltage value received by each light-emitting pixel is adjusted between the first reference voltage and the second reference voltage. For example, when there is a correlation between the value of the gray-scale register and the Gamma voltage value, the value of the gray-scale register can be increased unidirectionally or decreased unidirectionally, so that the magnitude of the Gamma voltage value changes unidirectionally between the first reference voltage and the second reference voltage. In an example, the first reference voltage can be the VGSP voltage, the second reference voltage can be the VGMP voltage, VGSP < VGMP, and the adjustment range of the Gamma voltage is between VGSP and VGMP.

[0056] Taking the transistor that receives the Gamma voltage value in the pixel circuit of the display panel as a P-type transistor as an example, when the Gamma voltage value is close to the VGSP voltage, the actual emission brightness of the light-emitting pixel is greater; when the Gamma voltage value is close to the VGMP voltage, the actual emission brightness of the light-emitting pixel is smaller. Then, during the Gamma debugging process of the image screen of the first gray-scale binding point at a certain target brightness, the values of the gray-scale registers corresponding to each light-emitting pixel can be adjusted to make the Gamma voltage value change from the VGSP voltage towards the VGMP voltage, and the actual display parameters of the image screen displayed on the display panel can be obtained in real time during the change of the Gamma voltage value. After determining the target display parameters corresponding to the first gray-scale binding point at the target brightness, the actual display parameters can be compared with the target display parameters to determine whether the actual display parameters are consistent with the target display parameters or the parameter difference meets the preset range. In an example, the device obtains the actual display parameters of the image screen by photographing the display area of the display panel through devices such as a CCD camera and a color analyzer to obtain the actual display parameters of the image screen.

[0057] When the differences between the actual display parameters of each light-emitting pixel and the target display parameters meet the requirements, the parameter values of the gray-scale registers corresponding to each light-emitting pixel at this time can be used as a set of gray-scale register parameter values of the image screen at the target brightness and the first gray-scale binding point as the Gamma debugging result at the target brightness. Among them, the above display parameters may include brightness values, color coordinates, etc.

[0058] After determining the Gamma debugging result of the image screen at a certain target brightness and the first gray-scale binding point, the display panel can be controlled to display the image screen at the next target brightness and the first gray-scale binding point, and a set of gray-scale register parameter values corresponding to the next target brightness can be obtained through the same Gamma debugging steps. After sequentially performing Gamma debugging on the image screens at each target brightness, the Gamma debugging results corresponding to each target brightness can be obtained, and the Gamma debugging result is a set of gray-scale register parameter values corresponding to all the light-emitting pixels at the first gray-scale binding point at the corresponding target brightness.

[0059] Please refer to Figure 2 , as an optional embodiment, the above S110 may further include:

[0060] S210, according to the first reference voltage and the second reference voltage of the display panel, adjust the values of the gray-scale registers of all the light-emitting pixels respectively in the image screen at the first gray-scale binding point and the first target brightness;

[0061] S220. When the actual display parameters of all the light-emitting pixels satisfy the target display parameters corresponding to the first gray-scale binding point and the first target brightness, determine the gray-scale register parameter values corresponding to all the light-emitting pixels at the first gray-scale binding point and the first target brightness respectively.

[0062] S230. Adjust the first target brightness to the second target brightness, and adjust the values of the gray-scale registers of all the light-emitting pixels respectively to determine the gray-scale register parameter values corresponding to all the light-emitting pixels at the first gray-scale binding point and the second target brightness, until the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the first gray-scale binding point are obtained.

[0063] In this embodiment, the device can perform Gamma debugging on the image screen of the first gray-scale binding point and the first target brightness according to the first reference voltage and the second reference voltage of the display panel. By adjusting the values of the gray-scale registers of each light-emitting pixel, the actual display parameters of each light-emitting pixel can satisfy the requirements of the target display parameters corresponding to the first gray-scale binding point and the first target brightness. After performing Gamma debugging on each light-emitting pixel, the gray-scale register parameter values corresponding to all the light-emitting pixels respectively can be used as a set of gray-scale register parameter values at the first gray-scale binding point and the first target brightness. After calculating a set of gray-scale register parameter values corresponding to the first target brightness, Gamma debugging can be performed on the second target brightness and other target brightnesses in sequence to respectively obtain a set of gray-scale register parameter values corresponding to each target brightness under the first gray-scale binding point.

[0064] In S210, the device can determine a first target brightness from multiple target brightnesses and control the display panel to display the image screen at the first target brightness and the first gray-scale binding point. At this time, Gamma debugging has not been performed yet, and in the image screen displayed by the display panel, there are differences between the actual display parameters of each light-emitting pixel and the target display parameters corresponding to the first target brightness and the first gray-scale binding point. By adjusting the values of the gray-scale registers of each light-emitting pixel in the display panel respectively, the Gamma voltage received by each light-emitting pixel can be adjusted between the first reference voltage and the second reference voltage.

[0065] It can be understood that, in order to avoid the reciprocating adjustment of the Gamma voltage, the value of the gray-scale register of the light-emitting pixel can be adjusted so that the initial Gamma voltage value is close to one of the first reference voltage and the second reference voltage, and by unidirectionally adjusting the value of the gray-scale register, the Gamma voltage value approaches the other reference voltage through monotonic increase or monotonic decrease. When the Gamma voltage received by the light-emitting pixel is monotonically increasing or decreasing, the actual display parameter of the light-emitting pixel also increases or decreases unidirectionally accordingly. During the unidirectional adjustment of the value of the gray-scale register, the actual display parameter only maintains a unidirectional change, which is convenient for the device to determine whether the difference between the actual display parameter and the target display parameter meets the requirements.

[0066] In S220, the device can adjust the values of the gray-scale registers corresponding to each light-emitting pixel so that the actual display parameters of each light-emitting pixel in the image screen meet the target display parameters corresponding to the first gray-scale binding point and the first target brightness. When the actual display parameters of each light-emitting pixel meet the corresponding target display parameters, the parameter values of the gray-scale registers corresponding to each light-emitting pixel can be determined respectively, and the parameter values of the gray-scale registers corresponding to all light-emitting pixels at this time are used as a set of gray-scale register parameter values under the first gray-scale binding point and the first target brightness.

[0067] In S230, after calculating a set of gray-scale register parameter values corresponding to the first target brightness, the first target brightness can be adjusted to the second target brightness, that is, controlling the display panel to display the image screen under the second target brightness and the first gray-scale binding point, and re-adjusting the values of the gray-scale registers corresponding to each light-emitting pixel so that the actual display parameters of each light-emitting pixel in the image screen meet the target display parameters corresponding to the first gray-scale binding point and the second target brightness. That is, Gamma debugging is performed on the image screen under the second target brightness to obtain a set of gray-scale register parameter values corresponding to all light-emitting pixels under the first gray-scale binding point and the second target brightness.

[0068] After determining a set of gray-scale register parameter values corresponding to the second target brightness, the second target brightness can be adjusted to the next target brightness, and the parameter values of the gray-scale registers corresponding to all light-emitting pixels under each target brightness are calculated in turn to obtain a set of gray-scale register parameter values corresponding to each target brightness.

[0069] In S120, after the device determines the parameter values of the gray-scale registers corresponding to all light-emitting pixels under each target brightness, it can calculate the first target reference voltage corresponding to each target brightness. Among them, the first target reference voltage is located between the first reference voltage and the second reference voltage.

[0070] Taking one of multiple target brightness levels as an example, at this target brightness level, during the process of performing Gamma calibration on the image screen of the first gray-scale binding point, the device can obtain the gray-scale register parameter values corresponding to each light-emitting pixel. According to the correspondence between the values of the gray-scale registers and the Gamma voltage values, the Gamma voltage values corresponding to each gray-scale register parameter value can be determined. It can be understood that among all the light-emitting pixels, the Gamma voltage value corresponding to the gray-scale register parameter value of any one light-emitting pixel should be between the first reference voltage and the second reference voltage. Then, based on the gray-scale register parameter values corresponding to all the light-emitting pixels, the Gamma voltage value closest to the first reference voltage among the multiple Gamma voltage values can be determined. The voltage difference between the Gamma voltage value closest to the first reference voltage and the second reference voltage is greater than the voltage differences between other Gamma voltage values and the second reference voltage.

[0071] It can be understood that during Gamma calibration, if the two reference voltages of the display panel are maintained as the first reference voltage and the second reference voltage, the Gamma voltage value corresponding to the gray-scale register parameter value of any one light-emitting pixel is between the first reference voltage and the second reference voltage. If the first reference voltage is adjusted to the Gamma voltage value closest to the first reference voltage, so that the reference voltage range is reduced from between the first reference voltage and the second reference voltage to between the Gamma voltage value closest to the first reference voltage and the second reference voltage, the Gamma voltage value corresponding to the gray-scale register parameter value of any one light-emitting pixel is also within this new reference voltage range. That is, when one of the two reference voltages is adjusted between the first reference voltage and the Gamma voltage value closest to the first reference voltage, the adjusted reference voltage range can include the Gamma voltage values corresponding to the gray-scale register parameter values of all the light-emitting pixels. Within the new reference voltage range, each light-emitting pixel can still obtain the Gamma voltage value corresponding to the gray-scale register parameter value. That is to say, the adjusted reference voltage range can still meet the requirements for Gamma calibration of the light-emitting pixels at this target brightness level and will not affect the Gamma calibration of the light-emitting pixels. And because the voltage difference between the Gamma voltage value closest to the first reference voltage and the second reference voltage is less than the voltage difference between the first reference voltage and the second reference voltage, on the basis of not affecting the light-emitting pixels from obtaining the corresponding Gamma voltage values, reducing the voltage difference between the two reference voltages can also reduce the power consumed to maintain the reference voltages, thereby reducing the power consumption of the display panel.

[0072] Please refer to Figure 3 , as an optional embodiment, the above S120 may further include:

[0073] S310. Determine the maximum parameter value or the minimum parameter value corresponding to each target brightness according to the gray-scale register parameter values respectively corresponding to all the light-emitting pixels at each target brightness.

[0074] S320. Determine the first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness.

[0075] S330. Determine the first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness.

[0076] In this embodiment, the device can determine the maximum parameter value or the minimum parameter value among multiple gray-scale register parameter values according to the gray-scale register parameter values respectively corresponding to all the light-emitting pixels at each target brightness, determine the corresponding two Gamma voltage values according to the two parameter values respectively, and determine the first Gamma voltage value corresponding to the target brightness from the two Gamma voltage values. According to the first Gamma voltage value corresponding to each target brightness, the first target reference voltage corresponding to the target brightness can be further determined, so that the first Gamma voltage value is between the first target reference voltage and the second reference voltage.

[0077] In S310, for the image frame corresponding to the first gray-scale binding point at each target brightness, the device can make the actual display parameters of each light-emitting pixel consistent with or close to the target display parameters by respectively adjusting the values of the gray-scale registers of each light-emitting pixel. Taking one of the multiple target brightnesses as an example, at this target brightness, by respectively adjusting the values of the gray-scale registers of each light-emitting pixel, the actual display parameters of each light-emitting pixel can be made close to the target display parameters. At this time, the device can read the values of the gray-scale registers of each light-emitting pixel as the gray-scale register parameter values corresponding to the light-emitting pixel at this target brightness and the first gray-scale binding point.

[0078] It can be understood that the gray-scale register parameter value of the light-emitting pixel and the Gamma voltage value received by the light-emitting pixel can generally be in a positive correlation or a negative correlation. For example, as the value of the gray-scale register decreases, the Gamma voltage value received by the light-emitting pixel also decreases; or as the value of the gray-scale register increases, the Gamma voltage value received by the light-emitting pixel decreases accordingly.

[0079] After obtaining the gray-scale register parameter values respectively corresponding to all the light-emitting pixels at a certain target brightness, the maximum parameter value and the minimum parameter value can be determined from the multiple gray-scale register parameter values, and the maximum parameter value and the minimum parameter value are the maximum parameter value or the minimum parameter value corresponding to this target brightness. For each target brightness, the maximum parameter value and the minimum parameter value can be determined from all the gray-scale register parameter values at this target brightness.

[0080] In S320, after determining the maximum parameter value or the minimum parameter value corresponding to a certain target brightness, the Gamma voltage corresponding to the maximum parameter value can be determined according to the maximum parameter value, and the Gamma voltage corresponding to the minimum parameter value can be determined according to the minimum parameter value. After determining the two Gamma voltage values corresponding to the maximum parameter value and the minimum parameter value respectively, the first Gamma voltage value corresponding to the target brightness can be determined from the two Gamma voltage values.

[0081] It can be understood that since, at the target brightness, the values of the gray-scale registers of other light-emitting pixels are all between the maximum parameter value and the minimum parameter value, the Gamma voltage values received by other light-emitting pixels are also between the two Gamma voltage values corresponding to the maximum parameter value and the minimum parameter value respectively. Selecting the Gamma voltage value closer to the first reference voltage from the two Gamma voltage values as the first Gamma voltage value can make the Gamma voltage values received by other light-emitting pixels all between the first Gamma voltage value and the second reference voltage.

[0082] In some embodiments, if the transistor type of the pixel circuit of the light-emitting pixels in the display panel has been determined, and the correlation between the value of the gray-scale register and the Gamma voltage value has also been determined, then the Gamma voltage value corresponding to one of the maximum parameter value or the minimum parameter value can be directly determined as the first Gamma voltage value according to the transistor type of the pixel circuit and the correlation between the value of the gray-scale register and the Gamma voltage value, without the need to determine the Gamma voltage value corresponding to the other parameter value

[0083] For example, when the first reference voltage is VGSP, the second reference voltage is VGMP, VGSP < VGMP, the transistor of the pixel circuit is a P-type transistor, and the correlation between the value of the gray-scale register and the Gamma voltage value is a positive correlation. The closer the Gamma voltage value is to the first reference voltage VGSP, the greater the light-emitting brightness of the light-emitting pixel; the closer the Gamma voltage value is to the second reference voltage VGMP, the smaller the light-emitting brightness of the light-emitting pixel. Since the correlation between the value of the gray-scale register and the Gamma voltage value is a positive correlation, when the value of the gray-scale register is the minimum parameter value, the corresponding Gamma voltage value is the minimum Gamma voltage value among the multiple Gamma voltage values, and this minimum Gamma voltage value is the closest to the first reference voltage. At this time, the Gamma voltage value corresponding to the minimum parameter value can be used as the first Gamma voltage value.

[0084] Correspondingly, when the correlation between the value of the grayscale register and the Gamma voltage value is a negative correlation, in order to make the first Gamma voltage value closest to the first reference voltage VGSP, the first Gamma voltage value needs to select the minimum value among multiple Gamma voltage values, and the value of the grayscale register corresponding to the smallest Gamma voltage value is the maximum value. That is, at this time, the Gamma voltage value corresponding to the maximum parameter value can be used as the first Gamma voltage value.

[0085] Please refer to Figure 4 , as an optional embodiment, the above S320 may further include:

[0086] S410, determine the second Gamma voltage value corresponding to the maximum parameter value and the third Gamma voltage value corresponding to the minimum parameter value according to the preset first correspondence and the maximum parameter value and the minimum parameter value corresponding to each target brightness; the first correspondence includes the correspondence between the value of the grayscale register and the Gamma voltage value;

[0087] S420, select the Gamma voltage value with a smaller difference from the first reference voltage from the second Gamma voltage value and the third Gamma voltage value as the first Gamma voltage value.

[0088] In this embodiment, the device can determine the second Gamma voltage value corresponding to the maximum parameter value and the third Gamma voltage value corresponding to the minimum parameter value according to the preset first correspondence. Among the second Gamma voltage value and the third Gamma voltage value, the Gamma voltage value closer to the first reference voltage can be selected as the first Gamma voltage value. When the parameter value of the grayscale register of the light-emitting pixel is adjusted between the maximum parameter value and the minimum parameter value, the corresponding Gamma voltage value will also change between the second Gamma voltage value and the third Gamma voltage value. By using the Gamma voltage value closer to the first reference voltage among the second Gamma voltage value and the third Gamma voltage value as the first Gamma voltage value, it can be ensured that the parameter value of the grayscale register of the light-emitting pixel will be between the first Gamma voltage value and the second reference voltage no matter how it is adjusted. That is, through the first Gamma voltage value, the original reference voltage range can be compressed to reduce the voltage difference within the reference voltage range, and the compressed reference voltage range includes the entire adjustment range of the Gamma voltage during Gamma debugging of the display panel at this target brightness.

[0089] In S410, a first correspondence is preset in the display panel. The first correspondence may include the correspondence between the values of the gray-scale registers and the Gamma voltage values. When Gamma compensation is performed on the display panel, the values in the gray-scale registers of each light-emitting pixel can be read, and corresponding Gamma voltages can be generated according to the first correspondence and output to the pixel circuits of each light-emitting pixel. The device can also obtain the first correspondence, and according to the maximum parameter value and the minimum parameter value corresponding to each target brightness, determine the second Gamma voltage value corresponding to the maximum parameter value and the third Gamma voltage value corresponding to the minimum parameter value according to the first correspondence.

[0090] In S420, after determining the second Gamma voltage value and the third Gamma voltage value, the difference between the second Gamma voltage value and the first reference voltage and the difference between the third Gamma voltage value and the first reference voltage can be calculated respectively, and the Gamma voltage value with the smaller difference can be selected as the first Gamma voltage value. That is, after determining the second Gamma voltage value and the third Gamma voltage value, the Gamma voltage value closer to the first reference voltage can be selected as the first Gamma voltage value.

[0091] In S330, after the device determines the first Gamma voltage value corresponding to a certain target brightness according to the values of the gray-scale registers of each light-emitting pixel at that target brightness, the first reference voltage corresponding to that target brightness can be determined according to the first Gamma voltage value. According to the first Gamma voltage value corresponding to each target brightness, the device can determine the first target reference voltage corresponding to each target brightness respectively. The first target reference voltage can be located between the first Gamma voltage value and the first reference voltage.

[0092] It can be understood that the first Gamma voltage value is the Gamma voltage value closest to the first reference voltage among the Gamma voltage values received by all light-emitting pixels. When the device performs Gamma debugging on the light-emitting pixels, the range of the two reference voltages selected should slightly exceed the first Gamma voltage value to avoid voltage fluctuations in the output Gamma voltage value due to the first Gamma voltage value being at the boundary of the reference voltage range. After determining the first target reference voltage according to the first Gamma voltage value, the device can set the two reference voltages to the first target reference voltage and the second reference voltage respectively during Gamma debugging. At this time, the Gamma voltage value closest to the first target reference voltage among all light-emitting pixels, that is, the first Gamma voltage value, also has a certain voltage difference from the first target reference voltage, thus avoiding being too close to the adjustment boundary of the reference voltage range when providing Gamma voltage for the light-emitting pixels.

[0093] Please refer to Figure 5, as an optional embodiment, the above S330 may further include:

[0094] S510, obtaining a preset voltage margin;

[0095] S520, determining a first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness and the preset voltage margin, where the difference between the first target reference voltage and the first reference voltage is less than the difference between the first Gamma voltage value and the first reference voltage.

[0096] In this embodiment, the device may obtain a preset voltage margin, and after determining the first Gamma voltage value corresponding to each target brightness, calculate the first target reference voltage corresponding to each target brightness according to the preset voltage margin and the first Gamma voltage value. When setting the reference voltage range between the first target reference voltage and the second reference voltage, since there is a voltage margin between the first Gamma voltage and the first target reference voltage, it is possible to avoid being too close to the boundary value of the reference voltage range when adjusting the Gamma voltage value, and improve the stability of the Gamma voltage value.

[0097] In S510, after determining the first Gamma voltage value corresponding to a certain target brightness, the device may obtain a preset voltage margin. This voltage margin may be a fixed voltage value. For example, the voltage margin may be set to 0.1V. The voltage margin may also be a voltage value calculated according to the voltage values of the first reference voltage and the second reference voltage and the voltage difference between the two reference voltages. For example, when the voltage difference between the two reference voltages is large, the voltage margin may be increased accordingly; when the voltage difference between the two reference voltages is small, the voltage margin may be decreased accordingly.

[0098] In S520, after obtaining the preset voltage margin, the first target reference voltage corresponding to each target brightness may be determined according to the first Gamma voltage value corresponding to each target brightness and the preset voltage margin. The difference between the first target reference voltage and the first reference voltage is less than the difference between the first Gamma voltage value and the first reference voltage.

[0099] In an example, taking the first reference voltage as VGSP and the second reference voltage as VGMP, VGSP < VGMP. If the pixel circuit of the light-emitting pixel in the display panel includes a thin-film transistor (TFT) with low-level effectiveness, the smaller the Gamma voltage value, the greater the light-emitting brightness of the light-emitting pixel; the greater the Gamma voltage value, the smaller the light-emitting brightness of the light-emitting pixel. Since the first Gamma voltage value is the Gamma voltage value closest to the first reference voltage among multiple Gamma voltage values, after obtaining the preset voltage margin, in order to make the first target reference voltage closer to the first reference voltage than the first Gamma voltage value, the difference between the first Gamma voltage value and the preset voltage margin can be used as the first target reference voltage.

[0100] Conversely, when the first reference voltage is greater than the second reference voltage, in order to make the first target reference voltage closer to the first reference voltage than the first Gamma voltage value, the sum of the first Gamma voltage value and the preset voltage margin can be used as the first target reference voltage.

[0101] After calculating the first target reference voltage corresponding to a certain target brightness based on the first Gamma voltage value, the first Gamma voltage values for each target brightness can be calculated in sequence to obtain the first target reference voltage corresponding to each target brightness.

[0102] In S130, after calculating the first target reference voltage corresponding to each target brightness respectively, Gamma debugging can be performed on the image screens of other multiple gray-scale binding points under each target brightness. When performing Gamma debugging on different gray-scale binding points under each target brightness, the original first reference voltage can be changed to the first target reference voltage, thereby narrowing the reference voltage range, and by adjusting the gray-scale register values of the light-emitting pixels, the Gamma voltage value can be adjusted within the narrowed reference voltage range, that is, between the first target reference voltage and the second reference voltage, to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels under multiple different gray-scale binding points at that target brightness.

[0103] It can be understood that since the first target reference voltage is closer to the second reference voltage than the first reference voltage, and the entire value range of the Gamma voltage values required for the light-emitting pixels during Gamma debugging is located between the first target reference voltage and the second reference voltage, without affecting the value range of the Gamma voltage values, by replacing the first reference voltage with the first target reference voltage, the voltage difference between the two reference voltages during Gamma debugging can be reduced, thereby reducing the power consumption generated by the display panel to maintain the voltage difference between the two reference voltages during the debugging process. Moreover, among multiple different target brightness levels, the first target reference voltage corresponding to a smaller target brightness is closer to the second reference voltage than the first target reference voltage corresponding to a larger target brightness. As a result, when the device performs Gamma debugging on different gray-scale binding points at a smaller target brightness, the voltage difference between the two reference voltages can be further reduced, leading to a further increase in the power consumption saved.

[0104] It should be noted that when the device performs Gamma debugging on the display panel, corresponding multiple gray-scale binding points can be preset. By performing Gamma debugging on the image screens corresponding to different gray-scale binding points, the gray-scale register parameter values corresponding to all the light-emitting pixels at each gray-scale binding point can be obtained. Based on the gray-scale register parameter values corresponding to each light-emitting pixel at each gray-scale binding point, the gray-scale register parameter values corresponding to other gray scales outside the gray-scale binding points can be further calculated. For example, since the gray-scale binding points and the gray-scale register parameter values are usually in a positive correlation or a negative correlation, for a certain gray scale located between two adjacent gray-scale binding points, the gray-scale register parameter value corresponding to this gray scale can be determined by linearly fitting the gray-scale register parameter values of these two adjacent gray-scale binding points and then using the fitting line; the gray-scale register parameter value of this gray scale can also be obtained by using the interpolation method based on the gray-scale register parameter values of two adjacent gray-scale binding points, and no limitation is made here.

[0105] In some embodiments, in order to enable the Gamma voltage values corresponding to multiple other gray-scale binding points at each target brightness to be obtained between the first target reference voltage and the second reference voltage, the first gray-scale binding point can be set as the highest gray-scale binding point among the multiple gray-scale binding points. Among the multiple gray-scale binding points, the highest gray-scale binding point has the highest emission brightness. Correspondingly, the Gamma voltage value corresponding to the gray-scale register parameter value of the emitting pixels under this highest gray-scale binding point is the Gamma voltage value closest to the first reference voltage. The emission brightness of the emitting pixels under other lower gray-scale binding points is lower, and the Gamma voltage value corresponding to the gray-scale register parameter value is larger than the voltage difference between the first Gamma voltage value and the first reference voltage. That is, by setting the first gray-scale binding point as the highest gray-scale binding point among the multiple gray-scale binding points, the Gamma voltage values corresponding to the gray-scale register parameter values under other gray-scale binding points can be made to be between the first Gamma voltage value and the second reference voltage, so as to facilitate determining the reduced reference voltage range based on the first Gamma voltage value, and the reduced reference voltage range can also meet the Gamma debugging requirements of multiple gray-scale binding points at this target brightness.

[0106] In this embodiment, for the Gamma debugging of the image frames at different target brightnesses, the first reference voltage and the second reference voltage pre-set in the display panel can be used to perform Gamma debugging on the first gray-scale binding point to obtain the gray-scale register parameter values corresponding to all the emitting pixels at each target brightness under the first gray-scale binding point. According to these gray-scale register parameter values, the first target reference voltage corresponding to each target brightness can be determined. This first target reference voltage is between the first reference voltage and the second reference voltage, and when all the emitting pixels at each target brightness adjust the gray-scale register parameter values, the corresponding Gamma voltage values are all between the first target reference voltage and the second reference voltage. When performing Gamma debugging on multiple other gray-scale binding points at each target brightness, the first reference voltage can be replaced with the first target reference voltage corresponding to this target brightness. On the basis of still being able to meet the voltage range required for Gamma debugging of different gray-scale binding points at this target brightness, the voltage difference between the two reference voltages can be reduced, so that the power consumed by the display panel to maintain this voltage difference is reduced, thereby reducing the power consumption generated by the display panel to maintain the reference voltage during the Gamma debugging process.

[0107] In some embodiments, after S130 above, it may further include:

[0108] S610, burn the first target reference voltage corresponding to each target brightness and the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under multiple gray-scale binding points into the display panel, so that the display panel performs Gamma compensation between the first target reference voltage corresponding to the actual target brightness of the image screen and the second reference voltage.

[0109] After the device determines the corresponding first target reference voltage and second reference voltage according to each target brightness, and performs Gamma debugging on multiple gray-scale binding points at that target brightness, it can calculate a set of gray-scale register parameter values corresponding to each gray-scale binding point at each target brightness. For example, when there are 15 gray-scale binding points at each target brightness, 15 corresponding sets of gray-scale register parameter values can be obtained. When the target brightnesses include Nor1, Nor2, Nor3, Nor4, Nor5, Nor6, Nor7, Nor8, Nor9, and HBM, each target brightness corresponds to 15 sets of gray-scale register parameter values.

[0110] After determining the multiple sets of gray-scale register parameter values corresponding to different target brightnesses, the multiple sets of gray-scale register parameter values can be burned into the storage chip in the display panel. During normal display, the display panel can read the corresponding gray-scale register parameter values from the multiple sets of gray-scale register parameter values stored in the storage chip according to the actual target brightness and actual gray scale of the current image screen, and generate corresponding Gamma compensation voltages according to the gray-scale register parameter values of each light-emitting pixel to perform Gamma compensation on each light-emitting pixel.

[0111] It should be noted that during the process of burning the display panel, the device can also burn the first target reference voltage corresponding to each target brightness into the storage chip of the display panel. During normal display, after the display panel determines the actual target brightness of the image screen, it can obtain the first target reference voltage corresponding to the actual target brightness from the storage chip, and set the two reference voltages to the first target reference voltage and the second reference voltage respectively.

[0112] The display panel can adjust the values of the gray-scale registers of each light-emitting pixel, so that each light-emitting pixel receives a corresponding Gamma compensation voltage, and the voltage adjustment range of the Gamma compensation voltage is between the first target reference voltage and the second reference voltage. During the normal display process of the display panel, since the reference voltage interval under the actual target brightness changes from between the fixed first reference voltage and the second reference voltage to between the first target reference voltage and the second reference voltage, the size of the reference voltage interval can be reduced without affecting the adjustment range of the Gamma compensation voltage. That is, during the implementation of Gamma compensation, adjusting the reference voltage interval according to the actual target brightness can reduce the power consumption generated by the display panel to maintain the reference voltage interval without affecting the adjustment range of the Gamma compensation voltage, and reduce the power consumption of the panel product during normal display.

[0113] In this embodiment, the device can burn the parameter values of each group of gray-scale registers into the storage chip of the display panel after debugging multiple gray-scale binding points at each target brightness of the display panel. The device can also burn the first target reference voltage corresponding to each target brightness into the storage chip of the display panel. During the normal display process of the display panel, the corresponding first target reference voltage can be obtained from the storage chip according to the actual target brightness of the image screen, and the reference voltage interval is set to be between the first target reference voltage and the second reference voltage. By reading the parameter values of each group of gray-scale registers in the storage chip, the corresponding Gamma compensation voltage can be generated to perform Gamma compensation on each light-emitting pixel. The voltage adjustment range of the Gamma compensation voltage is within the first target reference voltage and the second reference voltage. Without affecting the voltage adjustment range of the Gamma compensation voltage, the voltage interval of the reference voltage can be reduced, thereby reducing the power consumption generated by the display panel to maintain the reference voltage interval, that is, reducing the power consumption of the panel product during normal display.

[0114] The embodiment of the present application also provides a Gamma debugging device, as Figure 6 shown, the device includes:

[0115] A first debugging module 601, configured to perform Gamma debugging on the image screens with different target brightnesses at the first gray-scale binding point according to the first reference voltage and the second reference voltage of the display panel, so as to obtain the parameter values of the gray-scale registers corresponding to all the light-emitting pixels at each target brightness at the first gray-scale binding point;

[0116] A voltage determination module 602, configured to determine the first target reference voltage corresponding to each target brightness according to the parameter values of the gray-scale registers corresponding to all the light-emitting pixels at each target brightness; the first target reference voltage is between the first reference voltage and the second reference voltage;

[0117] The second debugging module 603 is configured to perform Gamma debugging on the image screens under multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness, so as to obtain the gray-scale register parameter values corresponding to all the luminous pixels of each target brightness under multiple gray-scale binding points.

[0118] Figure 7 FIG. 4 shows a schematic hardware structure diagram of a Gamma debugging device provided by an embodiment of the present application.

[0119] The Gamma debugging device may include a processor 701 and a memory 702 storing computer program instructions.

[0120] Specifically, the above-mentioned processor 701 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0121] The memory 702 may include a mass storage for data or instructions. By way of example and not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disc, a magneto-optical disc, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In a suitable case, the memory 702 may include a removable or non-removable (or fixed) medium. In a suitable case, the memory 702 may be internal or external to the Gamma debugging device. In a specific embodiment, the memory 702 is a non-volatile solid-state memory.

[0122] In a specific embodiment, the memory 702 may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical, or other physical / tangible memory storage device. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described in reference to the method according to one aspect of the present disclosure.

[0123] The processor 701 reads and executes the computer program instructions stored in the memory 702 to implement any one of the Gamma debugging methods in the above embodiments.

[0124] In one example, the Gamma debugging device may further include a communication interface 703 and a bus 710. Among them, asFigure 7 As shown, a processor 701, a memory 702, and a communication interface 703 are connected via a bus 710 to complete communication with each other.

[0125] The communication interface 703 is mainly used to implement communication between various modules, devices, units, and / or equipment in the embodiments of the present application.

[0126] The bus 710 includes hardware, software, or both, and couples the components of the Gamma debugging device to each other. By way of example and not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a MicroChannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses or a combination of two or more of these. In suitable cases, the bus 710 may include one or more buses. Although the embodiments of the present application describe and illustrate specific buses, the present application contemplates any suitable bus or interconnect.

[0127] In addition, in combination with the Gamma debugging method in the above embodiments, the embodiments of the present application may provide a computer storage medium to implement. Computer program instructions are stored on the computer storage medium; when the computer program instructions are executed by a processor, any one of the Gamma debugging methods in the above embodiments is implemented.

[0128] It should be clear that the present application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present application.

[0129] The functional blocks shown in the above structural block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application-specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, and so on. When implemented in software, the elements of the present application are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" can include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical discs, hard disks, fiber optic media, radio frequency (RF) links, and so on. The code segment can be downloaded via a computer network such as the Internet, an intranet, and so on.

[0130] It should also be noted that in the exemplary embodiments mentioned in the present application, some methods or systems are described based on a series of steps or devices. However, the present application is not limited to the order of the above steps. That is to say, the steps can be executed in the order mentioned in the embodiments, can be different from the order in the embodiments, or several steps can be executed simultaneously.

[0131] As described above with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block in the flowchart and / or block diagram, and the combination of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to generate a machine such that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the functions / actions specified in one or more blocks of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It is also understood that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can also be implemented by dedicated hardware that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0132] The above is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A Gamma debugging method for a display panel, characterized in that, the method includes: According to the first reference voltage and the second reference voltage of the display panel, perform Gamma debugging on the image screens with different target brightnesses under the first gray-scale binding point respectively, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the first gray-scale binding point; According to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness respectively, determine the first target reference voltage corresponding to each target brightness; the first target reference voltage is between the first reference voltage and the second reference voltage; According to the first target reference voltage and the second reference voltage corresponding to each target brightness, perform Gamma debugging on the image screens under multiple gray-scale binding points respectively, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness under the multiple gray-scale binding points; The step of determining the first target reference voltage corresponding to each target brightness according to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness respectively includes: According to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness respectively, determine the maximum parameter value or the minimum parameter value corresponding to each target brightness; Determine the first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness; Determine the first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness.

2. The Gamma debugging method for a display panel according to claim 1, characterized in that, the step of determining the first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness includes: According to the preset first correspondence relationship and the maximum parameter value and the minimum parameter value corresponding to each target brightness, determine the second Gamma voltage value corresponding to the maximum parameter value and the third Gamma voltage value corresponding to the minimum parameter value; the first correspondence relationship includes the correspondence relationship between the value of the gray-scale register and the Gamma voltage value; Select the Gamma voltage value with a smaller difference from the first reference voltage from the second Gamma voltage value and the third Gamma voltage value as the first Gamma voltage value.

3. The Gamma debugging method for a display panel according to claim 1, characterized in that, the step of determining the first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness includes: Obtain a preset voltage margin; Determine the first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness and the preset voltage margin, and the difference between the first target reference voltage and the first reference voltage is less than the difference between the first Gamma voltage value and the first reference voltage.

4. The Gamma debugging method for a display panel according to claim 1, characterized in that, Performing Gamma calibration on the image frames with different target brightness levels under the first gray-scale binding point according to the first reference voltage and the second reference voltage of the display panel, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level under the first gray-scale binding point, including: Adjusting the values of the gray-scale registers of all the light-emitting pixels respectively under the image frame with the first target brightness level at the first gray-scale binding point according to the first reference voltage and the second reference voltage of the display panel; When the actual display parameters of all the light-emitting pixels meet the target display parameters corresponding to the first gray-scale binding point and the first target brightness level, determining the gray-scale register parameter values corresponding to all the light-emitting pixels respectively at the first gray-scale binding point and the first target brightness level; Adjusting the first target brightness level to the second target brightness level, and adjusting the values of the gray-scale registers of all the light-emitting pixels respectively, so as to determine the gray-scale register parameter values corresponding to all the light-emitting pixels respectively at the first gray-scale binding point and the second target brightness level, until the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level under the first gray-scale binding point are obtained.

5. The Gamma calibration method for a display panel according to claim 1, wherein, after performing Gamma calibration on the image frames at multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness level, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level at the multiple gray-scale binding points, further comprising: Burning the first target reference voltage corresponding to each target brightness level and the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level at the multiple gray-scale binding points into the display panel, so that the display panel performs Gamma compensation between the first target reference voltage corresponding to the actual target brightness level of the image frame and the second reference voltage.

6. The Gamma calibration method for a display panel according to claim 1, wherein, the first gray-scale binding point is the highest gray-scale binding point among the multiple gray-scale binding points.

7. A Gamma calibration device, wherein, the device comprises: a first calibration module, configured to perform Gamma calibration on the image frames with different target brightness levels under the first gray-scale binding point according to the first reference voltage and the second reference voltage of the display panel, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level under the first gray-scale binding point; a voltage determination module, configured to determine the first target reference voltage corresponding to each target brightness level according to the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level; the first target reference voltage is between the first reference voltage and the second reference voltage; a second calibration module, configured to perform Gamma calibration on the image frames at multiple gray-scale binding points respectively according to the first target reference voltage and the second reference voltage corresponding to each target brightness level, so as to obtain the gray-scale register parameter values corresponding to all the light-emitting pixels at each target brightness level at the multiple gray-scale binding points; The voltage determination module is configured to determine the maximum parameter value or the minimum parameter value corresponding to each target brightness according to the gray-scale register parameter values respectively corresponding to all the light-emitting pixels at each target brightness; determine the first Gamma voltage value corresponding to each target brightness according to the maximum parameter value or the minimum parameter value corresponding to each target brightness; and determine the first target reference voltage corresponding to each target brightness according to the first Gamma voltage value corresponding to each target brightness.

8. A Gamma debugging device characterized in that the Gamma debugging device includes: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the Gamma debugging method of the display panel according to any one of claims 1-6 is implemented.

9. A computer storage medium characterized in that computer program instructions are stored on the computer storage medium, and when the computer program instructions are executed by a processor, the Gamma debugging method of the display panel according to any one of claims 1-6 is implemented.

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