Gamma debugging method, gamma debugging device and display device

Abstract

The present disclosure provides a gamma debugging method, a gamma debugging device and a display device, which belong to the field of display technology, and can solve the problem that the brightness value corresponding to the low grayscale in the existing display panel is low, which affects the display uniformity. The gamma debugging method of the present disclosure includes: dividing the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is less than the grayscale value in the second grayscale interval; using the first gamma curve formula, obtaining the brightness value corresponding to each grayscale value in the first grayscale interval; wherein the gamma value of the first gamma curve formula is less than the gamma value of the second gamma curve formula; using the second gamma curve formula, obtaining the brightness value corresponding to each grayscale value in the second grayscale interval; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value.

Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a gamma debugging method, a gamma debugging device and a display device. Background Art

[0002] Organic Light-Emitting Diode (OLED) is a light-emitting device that uses organic solid-state semiconductors as light-emitting materials. It has broad application prospects due to its advantages such as simple preparation process, low cost, low power consumption, high luminous brightness, and wide operating temperature adaptability. Summary of the invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and provides a gamma adjustment method, a gamma adjustment device and a display device.

[0004] In a first aspect, an embodiment of the present disclosure provides a gamma debugging method, the gamma debugging method comprising:

[0005] Dividing the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval;

[0006] Using a first gamma curve formula, obtaining brightness values ​​corresponding to each grayscale value in the first grayscale interval; wherein the gamma value of the first gamma curve formula is less than the gamma value of the second gamma curve formula;

[0007] The brightness value corresponding to each grayscale value in the second grayscale interval is obtained by using a second gamma curve formula; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value.

[0008] Optionally, a first gamma curve formula is used to obtain brightness values ​​corresponding to each grayscale value in the first grayscale interval, the method further comprising:

[0009] Selecting a switching point between the first grayscale interval and the second grayscale interval, and calculating a brightness value corresponding to the switching point using a second gamma curve formula;

[0010] According to the grayscale value and the brightness value of the switching point, the maximum brightness is calculated using a third gamma curve formula; the gamma value of the third gamma curve formula is less than the standard gamma value;

[0011] The first gamma curve formula is acquired according to the maximum brightness and the third gamma curve formula.

[0012] Optionally, the gamma value of the first gamma curve formula is 1.5 to 2.2.

[0013] Optionally, the grayscale value of the switching point is located in a middle area of ​​the entire grayscale range.

[0014] Optionally, the grayscale value of the first grayscale interval is 1 to 142; and the grayscale value of the second grayscale interval is 143 to 255.

[0015] In a second aspect, an embodiment of the present disclosure provides a gamma debugging device, the gamma debugging device comprising:

[0016] A grayscale division module is configured to divide the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval;

[0017] A first gamma debugging module is configured to obtain a brightness value corresponding to each grayscale value in the first grayscale interval by using a first gamma curve formula; wherein the gamma value of the first gamma curve formula is less than the gamma value of the second gamma curve formula;

[0018] The second gamma debugging module is configured to obtain the brightness value corresponding to each grayscale value in the second grayscale interval by using a second gamma curve formula; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value.

[0019] Optionally, the gamma debugging device further includes:

[0020] a first brightness acquisition module, configured to select a switching point between the first grayscale interval and the second grayscale interval, and calculate a brightness value corresponding to the switching point using a second gamma curve formula;

[0021] A second brightness acquisition module is configured to calculate the maximum brightness according to the grayscale value and the brightness value of the switching point using a third gamma curve formula; the gamma value of the third gamma curve formula is less than the standard gamma value;

[0022] The gamma curve fitting module is configured to obtain the first gamma curve formula according to the maximum brightness and the third gamma curve formula.

[0023] In a third aspect, an embodiment of the present disclosure provides a display device, which includes the gamma debugging device provided above.

[0024] In a fourth aspect, an embodiment of the present disclosure provides an electronic device, comprising:

[0025] one or more processors;

[0026] A storage device having one or more programs stored thereon, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the gamma debugging method provided above;

[0027] One or more I / O interfaces are connected between the processor and the memory and are configured to implement information interaction between the processor and the memory.

[0028] In a fifth aspect, an embodiment of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the gamma debugging method provided above is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A flowchart of a gamma debugging method provided in an embodiment of the present disclosure.

[0030] Figure 2 A schematic diagram of a gamma curve provided in an embodiment of the present disclosure.

[0031] Figure 3 A schematic diagram of the structure of a gamma debugging device provided in an embodiment of the present disclosure.

[0032] Figure 4 It is a schematic diagram of the structure of an electronic device provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The human eye is much more sensitive to brightness in a darker environment than in a brighter environment. Therefore, the relationship between human eye perception and brightness is not a linear relationship. For example, the brightness is increased by 2 times, but the human eye cannot feel that the brightness has increased by 2 times. It can only feel that the brightness has increased a little. When the brightness is increased by 8 times or even higher, the human eye will feel that the brightness at this time is 2 times higher than the original brightness. Therefore, in order to make the display effect of the display device meet the visual perception of the human eye, it is necessary to perform gamma tuning on the display device. Specifically, the display device can be gamma tuned before it leaves the factory to determine the required driving voltage for each grayscale value of the display device in each gamma band.

[0036] Display devices are generally set to multiple gamma bands. For example, mobile phones are generally set to 13 gamma bands, including 1 high brightness mode (HBM), three always on display (AOD) modes, and 9 normal modes (Nor). The 9 Nors can be named Nor1, Nor2, ... Nor9 in sequence. Nor9 will be taken as an example for a detailed description.

[0037] At present, for high-end OLED display products on the market, customers have relatively high requirements for low-brightness and low-grayscale uniformity and low-grayscale picture quality yield. Since the current OLED display screen is debugged according to the gamma curve (gamma2.2) with a gamma value of 2.2, the brightness of low-brightness and low-grayscale itself will be low, and the yield will be low when the customer tests the uniformity. The current commonly used method is to improve the luminous raw materials in the display panel and adjust the voltage of the high-level voltage terminal VGH and the initialization signal terminal Vinit1. However, the cost of changing raw materials is high and the schedule is long. Adjusting the voltage is likely to cause other problems such as aggravated afterimages, resulting in poor picture quality, high brightness points and other defects, which is not conducive to improving the display effect of display products.

[0038] In order to solve at least one of the above-mentioned technical problems, the embodiments of the present disclosure provide a gamma debugging method, a gamma debugging device and a display device. The gamma debugging method, the gamma debugging device and the display device provided by the embodiments of the present disclosure will be further described in detail below in combination with the accompanying drawings and specific implementation methods.

[0039] In a first aspect, an embodiment of the present disclosure provides a gamma debugging method. Figure 1 A flow chart of a gamma debugging method provided by an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the gamma debugging method includes the following steps S101 to S103.

[0040] S101, dividing the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval.

[0041] In the above step S101, there are 256 grayscale values ​​in the entire grayscale range, specifically grayscale values ​​of 0 to 255, and the 256 grayscale values ​​can be divided into two grayscale intervals, wherein the first grayscale interval is a low grayscale interval, and the second grayscale interval can be a high grayscale interval, so that the low grayscale interval and the high grayscale interval are gamma-adjusted separately. The specific grayscale values ​​in the first grayscale interval and the second grayscale interval can be set according to actual needs.

[0042] S102, using a first gamma curve formula to obtain brightness values ​​corresponding to each grayscale value in a first grayscale interval; wherein the gamma value of the first gamma curve formula is smaller than the gamma value of the second gamma curve formula.

[0043] In the above step S102, in actual application, the smaller the gamma value, the greater the brightness corresponding to the same grayscale value. Generally, a gamma curve (gamma2.2) with a gamma value of 2.2±0.5 is used for debugging, and 2.2±0.5 is the standard gamma value. When gamma debugging is performed on the low grayscale interval, the first gamma curve formula is used for debugging, wherein the gamma value set by the first gamma curve formula is smaller than the standard gamma value, and the brightness corresponding to the low grayscale value can be increased to improve the display uniformity of the display panel in the low-brightness and low-grayscale interval and the yield of the display image in the low grayscale, thereby ensuring the uniformity and timeliness of the display panel in customer testing and acceptance, thereby improving the production capacity of the display panel and reducing production costs. In some implementations, the first gamma curve can be fitted by multiple gamma curves, and its gamma value increases as the grayscale value increases, and its maximum value of the gamma value is close to or equal to the standard gamma value.

[0044] S103, using a second gamma curve formula to obtain brightness values ​​corresponding to each grayscale value in a second grayscale interval; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value.

[0045] In the above step S103, when gamma adjustment is performed on the high grayscale interval, a gamma curve with a standard gamma value, that is, a gamma value of 2.2±0.5, can be used for gamma adjustment. In a high-brightness high-grayscale display screen, the standard gamma curve is used for adjustment, which does not affect the uniformity and display effect of the display screen, and at the same time, the adjustment method can be kept unchanged, saving production costs.

[0046] In the gamma debugging method provided by the embodiment of the present disclosure, the entire grayscale range is divided into high and low grayscale intervals and a low grayscale interval. The grayscale value of the low grayscale interval is gamma debugged using a first gamma curve formula with a smaller gamma value, and the grayscale value of the high grayscale interval is gamma debugged using a second gamma curve with a standard gamma value. The brightness corresponding to the low grayscale value can be increased to improve the display uniformity of the display panel in the low-brightness and low grayscale interval and the yield of the display image in the low grayscale, thereby ensuring the uniformity and timeliness of the display panel during customer testing and acceptance, thereby improving the production capacity of the display panel and reducing production costs.

[0047] In some embodiments, the following steps S201 to S203 are also included before step S102.

[0048] S201, selecting a switching point between a first grayscale interval and a second grayscale interval, and calculating a brightness value corresponding to the switching point using a second gamma curve formula.

[0049] In the above step S201, the grayscale value of the switching point between the first grayscale interval and the second grayscale interval can be specifically 143. Of course, the grayscale value of the switching point can also be adjusted according to actual conditions, for example, adjusted to 150 or 140. The grayscale value of 143 can be substituted into the second gamma curve formula, that is, the standard gamma curve formula with a gamma value of 2.2, to calculate the brightness value corresponding to the grayscale value of the switching point 143. Specifically, L143 = Lmax1*(143 / 255) 2 . 2 , the gamma curve diagram is as follows Figure 2 As shown, point A is the switching point, and the grayscale value and brightness value of point A are (143, L143). In some achievable methods, the grayscale value of the switching point can also be 239 and other values, which are not listed here one by one.

[0050] S202, calculating the maximum brightness according to the grayscale value and the brightness value of the switching point using a third gamma curve formula; the gamma value of the third gamma curve formula is smaller than the standard gamma value.

[0051] In the above step S202, the grayscale value and brightness value of A can be substituted into the third gamma curve formula. The gamma value of the third gamma curve formula is smaller than the standard gamma value. Specifically, the gamma value of the third gamma curve formula can be selected as 1.5, that is, L143=Lmax2*(143 / 255) 1 . 5The maximum brightness value Lmax2 can be calculated, that is, the grayscale value of point B is 255, and its corresponding brightness value is Lmax2, and the grayscale value and brightness value of point B are (255, Lmax2). Then, the maximum brightness corresponding to the fitted first gamma curve is the brightness of point B.

[0052] S203: Obtain a first gamma curve formula according to the maximum brightness and the third gamma curve formula.

[0053] In the above step S203, the brightness of point B can be substituted into the third gamma curve formula, that is, Li = Lmax2*(gray / 255) 1 . 5 , this formula is the first gamma curve formula, and its gamma curve diagram is as follows Figure 2 The first gamma curve can be used to perform gamma adjustment on the grayscale value in the low grayscale range, and the brightness corresponding to the low grayscale value can be increased to improve the display uniformity of the display panel in the low-brightness and low grayscale range and the yield of the display image in the low grayscale, thereby ensuring the uniformity and timeliness of the display panel during customer testing and acceptance, thereby improving the production capacity of the display panel and reducing production costs.

[0054] In some embodiments, the gamma value of the first gamma curve formula is between 1.5 and 2.2.

[0055] It can be understood that the gamma of the first gamma curve can be set according to actual needs. For example, the gamma value of the first gamma curve formula in the embodiment of the present disclosure can be set to 1.5, or it can be set to other values ​​between 1.5 and 2.2. Alternatively, the first gamma curve can be variable, and its gamma value increases within the range of 1.5 to 2.2 as the grayscale value increases.

[0056] In some embodiments, the grayscale value of the switching point is located in the middle area of ​​the entire grayscale range.

[0057] The middle area may include the middle value of the entire grayscale range. For example, the entire grayscale range includes 256 grayscales, and the middle grayscale value is 128. There is a specified difference between the maximum boundary grayscale value of the middle area and the middle grayscale value, and there is a specified difference between the minimum boundary grayscale value of the middle area and the middle grayscale value, for example, a difference of 20 from the middle grayscale value of 128. For example, when the entire grayscale range has 256 grayscales, the middle area may be a grayscale value of 108 to 148. In the embodiment of the present disclosure, the grayscale value of the switching point may be specifically 143, the grayscale value of the first grayscale interval is 1 to 142, and the grayscale value of the second grayscale interval is 143 to 255.

[0058] like Figure 2As shown, near the switching point, there is a certain difference between the brightness value adjusted by the first gamma curve and the brightness value adjusted by the second gamma curve. However, since the brightness value is relatively high at this time and the human eye is not sensitive to high brightness, the human eye cannot perceive the sudden decrease in the brightness value near the switching point, and it will not cause abnormal perception of the human eye, and it can also improve color deviation. Therefore, placing the grayscale value of the switching point in the middle area of ​​the entire grayscale range can avoid abnormal perception of the human eye caused by sudden changes in brightness during the transition of the grayscale interval.

[0059] It should be noted that in the gamma debugging method provided in the embodiment of the present disclosure, the entire grayscale range can also be divided into three grayscale intervals, for example, the grayscale of the switching point is 143 and 240, wherein the grayscale value of the first grayscale interval is 1 to 142, the grayscale value of the second grayscale interval is 143 to 239, and the grayscale value of the third grayscale interval is 240 to 255, wherein the gamma value used in the first grayscale interval is smaller than the gamma value used in the third grayscale interval, and the gamma value used in the third grayscale interval is the gamma value used in the second grayscale interval. For example: the gamma curve formula with a gamma value of 1.5±0.5 is used for debugging in the first grayscale interval, the gamma curve formula with a gamma value of 2.2±0.4 is used for debugging in the second grayscale interval, and the gamma curve formula with a gamma value of 2.2±0.3 is used for debugging in the third grayscale interval, so as to obtain a smoother brightness curve.

[0060] In a second aspect, the present disclosure provides a gamma debugging device. Figure 3 A schematic diagram of the structure of a gamma debugging device provided in an embodiment of the present disclosure is shown in FIG. Figure 3 As shown, the gamma adjustment device includes: a grayscale division module 301 , a first gamma adjustment module 302 and a second gamma adjustment module 303 .

[0061] The grayscale division module 301 is configured to divide the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval.

[0062] The first gamma debugging module 302 is configured to obtain the brightness value corresponding to each grayscale value in the first grayscale interval by using the first gamma curve formula; wherein the gamma value of the first gamma curve formula is smaller than the gamma value of the second gamma curve formula.

[0063] The second gamma debugging module 303 is configured to obtain the brightness value corresponding to each grayscale value in the second grayscale interval by using the second gamma curve formula; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value.

[0064] like Figure 3As shown, the gamma debugging device further includes: a first brightness acquisition module 401 , a second brightness acquisition module 402 and a gamma curve fitting module 403 .

[0065] The first brightness acquisition module 401 is configured to select a switching point between the first grayscale interval and the second grayscale interval, and calculate a brightness value corresponding to the switching point using a second gamma curve formula.

[0066] The second brightness acquisition module 402 is configured to calculate the maximum brightness according to the grayscale value and the brightness value of the switching point using a third gamma curve formula; the gamma value of the third gamma curve formula is smaller than the standard gamma value.

[0067] The gamma curve fitting module 403 is configured to obtain a first gamma curve formula according to the maximum brightness and the third gamma curve formula.

[0068] It should be noted that the modules in the gamma debugging device provided in the embodiment of the present disclosure can be used to execute steps S101 to S103 and steps S201 to S203 in the gamma debugging method provided in any of the above embodiments. The implementation principle is similar to the above and will not be repeated here.

[0069] On the third aspect, an embodiment of the present disclosure provides a display device, which includes a gamma debugging device as provided in any of the above embodiments. The display device can specifically be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a computer monitor, a laptop computer, a digital photo frame, a navigator, etc. The implementation principle and beneficial effects thereof are the same as the implementation principle and beneficial effects of the above-mentioned display module, and will not be repeated here.

[0070] In a fourth aspect, an embodiment of the present disclosure provides an electronic device, Figure 4 It is a schematic diagram of the structure of an electronic device provided in some embodiments of the present disclosure, such as Figure 4 As shown, the electronic device includes: one or more processors 401; a memory 402, on which one or more programs are stored, and when the one or more programs are executed by one or more processors, the one or more processors implement the gamma debugging method provided in any of the above embodiments; one or more I / O interfaces 403, connected between the processor and the memory, and configured to implement information interaction between the processor and the memory.

[0071] Among them, the processor 401 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 402 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I / O interface (read-write interface) 403 is connected between the processor 401 and the memory 402, and can realize information interaction between the processor 401 and the memory 402, including but not limited to a data bus (Bus), etc.

[0072] In some embodiments, the processor 401 , the memory 402 , and the I / O interface 403 are connected to each other through a bus, and further connected to other components of the computing device.

[0073] In a fifth aspect, this embodiment provides a computer-readable medium on which a computer program is stored. When the program is executed by a processor, the gamma debugging method provided by any of the above embodiments is implemented.

[0074] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0075] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A gamma adjustment method, characterized in that: The gamma debugging method comprises: Dividing the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval; Using a first gamma curve formula, obtaining brightness values ​​corresponding to each grayscale value in the first grayscale interval; wherein the gamma value of the first gamma curve formula is less than the gamma value of the second gamma curve formula; Using a second gamma curve formula, obtaining brightness values ​​corresponding to each grayscale value in the second grayscale interval; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value; Using a first gamma curve formula, the brightness value corresponding to each grayscale value in the first grayscale interval is obtained, which also includes: Selecting a switching point between the first grayscale interval and the second grayscale interval, and calculating a brightness value corresponding to the switching point using a second gamma curve formula; Calculating the maximum brightness according to the grayscale value and the brightness value of the switching point using a third gamma curve formula; the gamma value of the third gamma curve formula is less than the standard gamma value; The first gamma curve formula is acquired according to the maximum brightness and the third gamma curve formula.

2. The gamma debugging method according to claim 1, characterized in that: The gamma value of the first gamma curve formula is 1.5 to 2.

2.

3. The gamma debugging method according to claim 1, characterized in that: The grayscale value of the switching point is located in the middle area of ​​the entire grayscale range.

4. The gamma debugging method according to claim 3, characterized in that: The grayscale values ​​of the first grayscale interval are 1 to 142; the grayscale values ​​of the second grayscale interval are 143 to 255.

5. A gamma adjustment device, characterized in that: The gamma debugging device comprises: A grayscale division module is configured to divide the entire grayscale range into a first grayscale interval and a second grayscale interval; wherein the grayscale value in the first grayscale interval is smaller than the grayscale value in the second grayscale interval; a first gamma debugging module, configured to obtain a brightness value corresponding to each grayscale value in the first grayscale interval by using a first gamma curve formula; wherein the gamma value of the first gamma curve formula is less than the gamma value of the second gamma curve formula; A second gamma debugging module is configured to obtain a brightness value corresponding to each grayscale value in the second grayscale interval by using a second gamma curve formula; wherein the gamma value of the second gamma curve formula is equal to the standard gamma value; The gamma debugging device also includes: a first brightness acquisition module, configured to select a switching point between the first grayscale interval and the second grayscale interval, and calculate a brightness value corresponding to the switching point using a second gamma curve formula; A second brightness acquisition module is configured to calculate the maximum brightness according to the grayscale value and the brightness value of the switching point using a third gamma curve formula; the gamma value of the third gamma curve formula is less than the standard gamma value; The gamma curve fitting module is configured to obtain the first gamma curve formula according to the maximum brightness and the third gamma curve formula.

6. A display device, characterized in that: The display device comprises the gamma adjustment device as claimed in claim 5.

7. An electronic device, comprising: one or more processors; A storage device having one or more programs stored thereon, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the gamma debugging method according to any one of claims 1 to 4; One or more I / O interfaces are connected between the processor and the memory and are configured to implement information interaction between the processor and the memory.

8. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the gamma debugging method according to any one of claims 1 to 4.

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