Gamma correction method, driving circuit of display panel and display panel

Abstract

The application discloses a gamma correction method, a driving circuit of a display panel and the display panel, and belongs to the technical field of display. The gamma correction method comprises the following steps: acquiring a standard gamma value, and determining the adaptation of the standard gamma value and a current gamma chip; in the case that the standard gamma value is not adapted to the current gamma chip, converting the standard gamma value into a corrected gamma value which is adapted to the current gamma chip; writing the corrected gamma value into the current gamma chip; acquiring an output signal generated by the current gamma chip based on the corrected gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to the comparison result. The application converts the standard gamma value to obtain the corrected gamma value which is adapted to the current gamma chip, so that the corresponding standard gamma value does not need to be debugged again, different gamma chips can be compatible with a group of standard gamma values, the development cost is reduced, and the management difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to gamma correction methods, driving circuits for display panels, and display panels. Background Technology

[0002] For products of the same size and specifications, driver boards are designed with different IC (Integrated Circuit) combinations in mind for customer selection. However, ICs from different manufacturers have design differences. Therefore, after performing Auto P-gamma calibration using driver boards with different IC combinations, the resulting Auto P-gamma data is not shared. This means that for products of the same size and specifications, different ICs require different Auto P-gamma calibrations, significantly increasing workload. Furthermore, in projects with numerous customers, the same size may correspond to different specifications. Thus, even for products of the same size, developers need to calibrate multiple sets of Auto P-gamma values, greatly increasing development costs and management complexity. Summary of the Invention

[0003] The main purpose of this application is to provide a gamma correction method, a driving circuit for a display panel, and a display panel. The aim is to enable different IC-configured driver boards to use the same Auto P-gamma data after completing Auto P-gamma based on a gamma chip, thereby reducing development costs and management difficulty.

[0004] To achieve the above objectives, this application provides a gamma correction method, the gamma correction method comprising:

[0005] Obtain the standard gamma value and determine the compatibility between the standard gamma value and the current gamma chip;

[0006] If the standard gamma value is not compatible with the current gamma chip, the standard gamma value is converted into a corrected gamma value that is compatible with the current gamma chip.

[0007] Write the corrected gamma value into the current gamma chip;

[0008] The output signal generated by the current gamma chip based on the corrected gamma value is obtained, the output signal is compared with the standard gamma value, and the gamma correction result is determined based on the comparison result.

[0009] Optionally, the standard gamma value includes: the standard gamma storage address;

[0010] The step of converting the standard gamma value into a corrected gamma value adapted to the current gamma chip includes:

[0011] Convert the standard gamma value to a decimal number;

[0012] The decimal number is substituted into a preset conversion formula to obtain the calculation result. The preset conversion formula is used to convert the standard gamma value that is adapted to the standard gamma storage address into a corrected gamma value that is adapted to the gamma storage address of the current gamma chip.

[0013] The calculation result is rounded down and converted to a hexadecimal number to obtain the corrected gamma value that is compatible with the current gamma chip.

[0014] Optionally, the step of determining the compatibility between the standard gamma value and the current gamma chip includes:

[0015] The compatibility between the standard gamma value and the current gamma chip is determined based on the standard gamma storage address.

[0016] Optionally, the step of determining the compatibility between the standard gamma value and the current gamma chip based on the standard gamma storage address includes:

[0017] If the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, it is determined that the standard gamma value is compatible with the current gamma chip.

[0018] If the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, it is determined that the standard gamma value is incompatible with the current gamma chip.

[0019] Optionally, the standard gamma value further includes: a standard gamma voltage value;

[0020] The step of comparing the output signal with the standard gamma value and determining the gamma correction result based on the comparison result includes:

[0021] The output signal is then converted from analog to digital to obtain the output voltage value.

[0022] The output voltage value is compared with the standard gamma voltage value;

[0023] If the comparison result shows that the output voltage value is the same as the standard gamma voltage value, the gamma correction is determined to be successful.

[0024] If the comparison result shows that the output voltage value is different from the standard gamma voltage value, it is determined that the gamma correction was unsuccessful.

[0025] Optionally, the step of obtaining the standard gamma value includes:

[0026] Read the first gamma voltage signal corresponding to the standard gamma value from the preset memory;

[0027] The first gamma voltage signal is converted from analog to digital to obtain the standard gamma value.

[0028] Optionally, the step of writing the corrected gamma value into the current gamma chip includes:

[0029] The corrected gamma value is converted from digital to analog to obtain a second gamma voltage signal;

[0030] The second gamma voltage signal is sent to the current gamma chip to complete the writing of the corrected gamma value.

[0031] Optionally, before the step of obtaining the standard gamma value, the gamma correction method further includes:

[0032] Automatic gamma correction is performed based on a preset standard gamma chip and a preset debugging machine to obtain a standard gamma value.

[0033] Furthermore, to achieve the above objectives, this application also provides a driving circuit for a display panel, the driving circuit for the display panel comprising:

[0034] A source driver board, the source driver board including a flash memory for storing data;

[0035] A control board is connected to the display panel and the source driver board. The control board includes a gamma chip and a timing controller connected to each other. The gamma chip is connected to the display panel and is used to send gamma signals to the display panel. The timing controller is connected to the source driver board and the display panel and is used to execute the gamma correction method described above.

[0036] In addition, to achieve the above objectives, this application also provides a display panel, which includes a panel body and a driving circuit for the display panel as described above, wherein the driving circuit for the display panel is disposed in the non-display area of ​​the panel body.

[0037] In addition, to achieve the above objectives, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the gamma correction method as described above.

[0038] This application proposes a gamma correction method, a driving circuit for a display panel, and a display panel. The gamma correction method includes: acquiring a standard gamma value and determining the compatibility between the standard gamma value and a current gamma chip; if the standard gamma value is not compatible with the current gamma chip, converting the standard gamma value into a corrected gamma value compatible with the current gamma chip; writing the corrected gamma value into the current gamma chip; acquiring an output signal generated by the current gamma chip based on the corrected gamma value; comparing the output signal with the standard gamma value; and determining a gamma correction result based on the comparison result.

[0039] This application converts standard gamma values ​​to obtain calibrated gamma values ​​that are compatible with the current gamma chip, eliminating the need to recalibrate another standard gamma value corresponding to the current gamma chip. This allows different gamma chips to be compatible with a set of standard gamma values, overcoming the technical defects of existing technologies that require the development of multiple Auto P-gamma machine software for different IC assemblies, reducing development costs and management difficulty. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic flowchart of a gamma correction method provided in an embodiment of this application;

[0042] Figure 2 A schematic diagram of the structure of a driving circuit for a display panel provided in an embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application. Detailed Implementation

[0044] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that the embodiments of this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the embodiments of this application with unnecessary detail.

[0045] It should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0046] It should also be understood that references to "one embodiment" or "some embodiments" in the specification of embodiments of this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0047] As competition in the display industry intensifies, monitors are being upgraded at an increasingly rapid pace. To quickly seize market share, the same project is often offered to multiple clients. However, since different clients have different product needs, it is difficult for a project to meet market demands with only one driver board. Therefore, multiple driver boards are developed for the same project to meet the needs of different clients.

[0048] Because driver boards are designed with different IC (Integrated Circuit) combinations in mind for customers to choose from, and ICs from different manufacturers have design differences, the Auto P-gamma data obtained after performing Auto P-gamma using driver boards with different IC combinations is not shared. Auto P-gamma machines need to design corresponding software for driver boards with different IC combinations. However, developing multiple Auto P-gamma machine software for the same project will greatly increase development costs and management difficulty.

[0049] Based on this, embodiments of this application provide a gamma correction method, a driving circuit for a display panel, and a display panel. The gamma correction method includes: acquiring a standard gamma value and determining the compatibility between the standard gamma value and a current gamma chip; if the standard gamma value is not compatible with the current gamma chip, converting the standard gamma value into a corrected gamma value compatible with the current gamma chip; writing the corrected gamma value into the current gamma chip; acquiring an output signal generated by the current gamma chip based on the corrected gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result based on the comparison result.

[0050] This application's embodiments convert standard gamma values ​​to obtain corrected gamma values ​​that are compatible with the current gamma chip, eliminating the need to re-adjust another standard gamma value corresponding to the current gamma chip. This allows different gamma chips to be compatible with a set of standard gamma values, overcoming the technical defects of existing technologies that require the development of multiple Auto P-gamma machine software for different IC assemblies, reducing development costs and management difficulty.

[0051] The gamma correction method, display panel driving circuit, and display panel provided in this application embodiment are specifically described through the following embodiments. First, the gamma correction method in this application embodiment is described.

[0052] This application provides a gamma correction method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating a gamma correction method provided in an embodiment of this application, as shown below. Figure 1 As shown, the gamma correction method provided in this embodiment includes steps S10 to S40:

[0053] Step S10: Obtain the standard gamma value and determine the compatibility between the standard gamma value and the current gamma chip;

[0054] It should be noted that in this embodiment, the execution entity is the timing controller TCON in the driving circuit of the display panel, and the current gamma chip is the Gamma IC in the driving circuit of the display panel. The application scenario of this embodiment is that the gamma value of the current gamma chip in the driving circuit of the display panel needs to be corrected. In related technologies, the current gamma chip is generally adjusted by Auto P-gamma through a debugging machine connected to the display panel to obtain the corresponding Auto P-gamma data. However, this solution requires a corresponding Auto P-gamma software for different gamma chips, which is costly and difficult to manage. Therefore, in order to solve this problem, this embodiment directly obtains the standard gamma value obtained after Auto P-gamma is completed based on a preset standard gamma chip when performing gamma correction on the current gamma chip. If the standard gamma value is compatible with the current gamma chip, no gamma correction is required, which can significantly save development costs. If it is not compatible, the standard gamma value is adjusted in subsequent steps to make it compatible with the current gamma chip, which still does not require Auto P-gamma correction through the debugging machine, thus saving development costs.

[0055] As an example, the step of obtaining the standard gamma value in step S10 above may include:

[0056] Step S11: Read the first gamma voltage signal corresponding to the standard gamma value from the preset memory;

[0057] Step S12: Perform analog-to-digital conversion on the first gamma voltage signal to obtain the standard gamma value.

[0058] It should be noted that in this embodiment, the preset memory can be the flash memory in the source driver of the display panel, and the source driver board can be an XB board (X-Board, horizontal circuit board); the first gamma voltage signal is an analog signal containing the standard gamma value stored in the flash memory. After TCON obtains the analog signal from the flash memory, it needs to perform analog-to-digital conversion on it in order to obtain the standard gamma value in the form of a digital signal.

[0059] As an example, prior to step S10 above, the gamma correction method may further include:

[0060] Step A: Automatic gamma correction is performed based on a preset standard gamma chip and a preset debugging machine to obtain a standard gamma value.

[0061] It is understood that the implementation of this embodiment is based on the premise that TCON has already completed automatic gamma correction based on a standard chip and a debugging machine to obtain a standard gamma value for use as a template.

[0062] Step S20: If the standard gamma value is not compatible with the current gamma chip, convert the standard gamma value into a corrected gamma value that is compatible with the current gamma chip.

[0063] It is understandable that, since this embodiment does not perform automatic gamma correction on the current gamma chip through a debugging machine, the existing standard gamma value must be used as the target to correct the gamma value of the current gamma chip. Specifically, the standard gamma value can be converted into a corrected gamma value that can be stored in the same way and in the same location as the current gamma chip video through a preset conversion formula.

[0064] In some feasible embodiments, the standard gamma value includes: a standard gamma storage address; the step of converting the standard gamma value into a corrected gamma value adapted to the current gamma chip in step S20 above may include:

[0065] Step S21: Convert the standard gamma value into a decimal number;

[0066] Step S22: Substitute the decimal number into a preset conversion formula to obtain a calculation result, wherein the preset conversion formula is used to convert the standard gamma value adapted to the standard gamma storage address into a corrected gamma value adapted to the gamma storage address of the current gamma chip.

[0067] Step S23: Round the calculation result and convert it to a hexadecimal number to obtain the corrected gamma value that is compatible with the current gamma chip.

[0068] It should be noted that in this embodiment, in order to make the standard gamma value compatible with the current gamma chip, the one-to-one correspondence between the standard gamma voltage value and the standard gamma storage address needs to be adjusted so that the standard gamma voltage value can correspond one-to-one with the gamma storage address of the current gamma chip, and thus it can be written into the current gamma chip. Therefore, the data conversion process in this embodiment is mainly based on the address value difference between the standard gamma storage address and the gamma storage address of the current chip.

[0069] As an example, the timing controller TCON in the current display panel can first read the code (i.e., the standard gamma value) at a certain address in the flash memory, convert it into a decimal number, convert the decimal number using a preset conversion formula to obtain the calculation result, then round the calculation result and convert it into a hexadecimal number. This hexadecimal number is equivalent to the calibration gamma value adapted to the current gamma chip.

[0070] As an example, the preset conversion formula can be (VREF / adjustable code range * code) * 1024 / AVDD, where VREF is the standard voltage of the gamma IC, and GM1 + 0.2 < VREF - DAC < VAA - 0.5, AVDD is the analog voltage provided to COF, GM has 10 bits, so the adjustable value of code is 2 to the power of 10, which is 1024. The adjustable range needs to be reduced by one gamma, so it is 1023.

[0071] As an example, TCON reads the GM code (equivalent to the standard gamma value) from the XB FLASH, with addresses 0x00003-0X00001E (equivalent to the standard gamma storage address). It converts the GM code to decimal and calculates the GM code of KA734P (i.e., the current gamma chip) using the formula GM = (14.69961 / 1023 * code) * 1024 / 15.3. The result is then rounded and converted to hexadecimal, which is equivalent to the calibration gamma value adapted to the current gamma chip.

[0072] As an example, TCON reads the VCOM code (equivalent to the standard gamma value) from the XB FLASH, with address 0x00002 (equivalent to the standard gamma storage address). It converts the VCOM code to decimal and calculates the VCOM code of KA734P (i.e., the current gamma chip) using the formula VCOM = (31251*code + 596078) / 46617. The result is then rounded and converted to hexadecimal, which is equivalent to the calibration gamma value adapted to the current gamma chip.

[0073] Step S30: Write the corrected gamma value into the current gamma chip;

[0074] Understandably, after the conversion from standard gamma value to corrected gamma value is completed, the obtained corrected gamma value includes a gamma value that can be adapted to the current gamma chip. Therefore, it needs to be written into the current gamma chip to achieve gamma value correction of the current gamma chip.

[0075] In some feasible embodiments, the step of writing the corrected gamma value into the current gamma chip in step S30 may include:

[0076] Step S31: Convert the corrected gamma value into an analog-to-digital converter to obtain a second gamma voltage signal;

[0077] Step S32: Send the second gamma voltage signal to the current gamma chip to complete the writing of the corrected gamma value.

[0078] Understandably, since the corrected gamma value obtained by TCON after data conversion from the standard gamma value is also a digital signal, it needs to be converted into an analog signal first, and then the analog signal is sent to the current gamma chip to complete the writing of the corrected gamma value.

[0079] Step S40: Obtain the output signal generated by the current gamma chip based on the corrected gamma value, compare the output signal with the standard gamma value, and determine the gamma correction result based on the comparison result.

[0080] As an example, the aforementioned standard gamma value also includes: a standard gamma voltage value; the step S40, which compares the output signal with the standard gamma value and determines the gamma correction result based on the comparison result, includes:

[0081] Step S41: Perform analog-to-digital conversion on the output signal to obtain the output voltage value;

[0082] Step S42: Compare the output voltage value with the standard gamma voltage value;

[0083] Step S43: If the comparison result shows that the output voltage value is the same as the standard gamma voltage value, then the gamma correction is determined to be successful.

[0084] Step S44: If the comparison result shows that the output voltage value is different from the standard gamma voltage value, it is determined that the gamma correction is unsuccessful.

[0085] Understandably, gamma correction results include successful gamma correction and unsuccessful gamma correction. Successful gamma correction means that the standard gamma voltage value carried by the corrected gamma value successfully covers the gamma value of the current gamma chip, while unsuccessful gamma correction means that the standard gamma voltage value carried by the corrected gamma value does not cover the gamma value of the current gamma chip.

[0086] It should be noted that after writing the corrected gamma value to the current gamma chip, the success of the writing can be determined based on the output signal of the current gamma chip. Specifically, the gamma voltage value output by the current gamma chip is first obtained, and then compared with the standard gamma voltage value carried by the standard gamma value. If the two voltage values ​​are the same, it means that the corrected gamma value carrying the standard gamma voltage value has been successfully written to the current gamma chip, so that the standard gamma voltage value has successfully overwritten the original gamma value in the gamma memory address of the current gamma chip. If the two voltage values ​​are different, it means that the corrected gamma value carrying the standard gamma voltage value has not been successfully written to the current gamma chip, and the standard gamma voltage value has not overwritten the original gamma value in the gamma memory address of the current gamma chip.

[0087] As an example, the storage method and location of the same Gamma voltage value differ across different Gamma ICs, leading to incompatibility between Auto Pgamma values ​​generated by different CB configurations. Since the communication protocol between Tcon and XB Flash is the same, an algorithm needs to be added to the software of the Tcon IC on different CBs according to the different Gamma ICs. Specifically, Tcon first converts the actual voltage value read from the Auto Pgamma data into a digital signal. Then, based on the differences in the storage methods and locations of Gamma values ​​among different Gamma ICs, Tcon IC converts the read Auto Pgamma value into the corresponding numerical signal for each Gamma IC and writes it to the appropriate register location to achieve compatibility. Simultaneously, Tcon compares the value output by the Gamma IC via I2C with the Auto Pgamma value read from the XB Flash to ensure that the output voltage is consistent.

[0088] As an example, after the control board in the display panel's driving circuit is connected to the preset memory XB Flash, it will power on and off again to read the Auto P-gamma value stored in the XB Flash. Since different Gamma ICs have significant differences in register location and adjustment method, the Auto P-gamma value made based on the standard control board is generally not directly applicable to the control board in the display panel's driving circuit. Therefore, the Auto P-gamma value needs to be converted to obtain the appropriate gamma value for the control board in the display panel's driving circuit.

[0089] This embodiment proposes a gamma correction method. A timing controller (TCON) converts a standard gamma value to obtain a corrected gamma value compatible with the current gamma chip. This eliminates the need to re-adjust a different standard gamma value corresponding to the current gamma chip, enabling different gamma chips to be compatible with a single set of standard gamma values. This overcomes the technical shortcomings of existing technologies that require developing multiple Auto P-gamma testing software programs for different IC configurations and driver boards, reducing development costs and management complexity.

[0090] As an example, the step of determining the compatibility between the standard gamma value and the current gamma chip in step S10 above may include:

[0091] Step S13: Determine the compatibility between the standard gamma value and the current gamma chip based on the standard gamma storage address.

[0092] It should be understood that when TCON converts the first gamma voltage signal into a standard gamma value, the standard gamma value includes the standard gamma voltage value and the standard gamma storage address that corresponds one-to-one with the standard gamma voltage value (i.e., the storage address of the standard gamma value in the standard gamma chip). By comparing this standard gamma storage address with the storage address in the current gamma chip used to store the gamma value, it can be determined whether the standard gamma value is compatible with the current gamma chip.

[0093] As an example, step S13 above may include:

[0094] Step S131: If the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, determine that the standard gamma value is compatible with the current gamma chip.

[0095] Step S132: If the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, it is determined that the standard gamma value is not compatible with the current gamma chip.

[0096] It should be noted that the gamma storage address of the current gamma chip is the field used to store the gamma value in the current gamma chip. It can be understood that when the standard gamma storage address corresponding to the standard gamma voltage value is the same as the gamma storage address of the current gamma chip, it means that the standard gamma voltage value can be directly written to the current gamma chip; when the standard gamma storage address corresponding to the standard gamma voltage value is different from the gamma storage address of the current gamma chip, it means that the standard gamma voltage value cannot be directly written to the current gamma chip, and then the standard gamma value needs to be adjusted to adapt to the current gamma chip.

[0097] As an example, suppose the standard gamma value contains a standard gamma storage address of 0x00002. If the storage address used to store the gamma value in the current gamma chip is also 0x00002, then the standard gamma value is determined to be compatible with the current gamma chip. In this case, the standard gamma value does not need to be converted and can be directly written to the current gamma chip to correct its gamma value. Conversely, if the storage address used to store the gamma value in the current gamma chip is not 0x00002, then the standard gamma value is determined to be incompatible with the current gamma chip. In this case, the standard gamma value needs to be converted based on the address difference between the two chips to obtain a corrected gamma value, and then the corrected gamma value is written to the current gamma chip to correct its gamma value.

[0098] Furthermore, embodiments of this application also provide a driving circuit for a display panel, referring to... Figure 2 , Figure 2This is a schematic diagram of the structure of a driving circuit for a display panel provided in one embodiment of this application. The driving circuit for the display panel includes:

[0099] A source driver board, the source driver board including a flash memory for storing data;

[0100] A control board is connected to the display panel and the source driver board. The control board includes a gamma chip and a timing controller connected to each other. The gamma chip is connected to the display panel and is used to send gamma signals to the display panel. The timing controller is connected to the source driver board and the display panel and is used to execute the gamma correction method provided in the above embodiments.

[0101] The driving circuit of the display panel provided in this embodiment belongs to the same inventive concept as the gamma correction method provided in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments, and this embodiment has the same beneficial effects as the gamma correction method.

[0102] Furthermore, this application embodiment also provides a display panel. The gamma correction method proposed in the above embodiments can be executed by the driving circuit of the display panel, which is integrated into the display panel. This display panel can be applied to display devices, such as mobile phones, tablets, televisions, monitors, laptops, digital photo frames, navigators, and any other products or components with display functions.

[0103] Reference Figure 3 , Figure 3 This is a schematic diagram of the hardware structure of a display panel provided in one embodiment of this application. Figure 3 As shown, the display panel may include a panel body and a driving circuit for the display panel provided in the above embodiment, wherein the driving circuit for the display panel is disposed in the non-display area of ​​the panel body.

[0104] Those skilled in the art will understand that Figure 3 The structure shown does not constitute a limitation on the display panel and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0105] The display panel proposed in this embodiment belongs to the same inventive concept as the gamma correction method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the above gamma correction method.

[0106] Furthermore, embodiments of this application also propose a computer-readable storage medium for use in a computer. The computer-readable storage medium may be a non-volatile computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the gamma correction method of any of the embodiments described above.

[0107] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media 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 includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0108] The above is a detailed description of the preferred embodiments of this application. However, the embodiments of this application are not limited to the above-described implementation methods. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the embodiments of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of the embodiments of this application.

Claims

1. A gamma correction method, characterized in that, The gamma correction method includes: Obtain a standard gamma value and determine the compatibility of the standard gamma value with the current gamma chip; wherein, the standard gamma value is obtained by automatic gamma correction based on a preset standard gamma chip and a preset debugging machine, and is used as a template to be reused for different gamma chips; If the standard gamma value is incompatible with the current gamma chip, the standard gamma value is converted into a decimal number; the decimal number is substituted into a preset conversion formula to obtain a calculation result, wherein the preset conversion formula is used to convert the standard gamma value adapted to the standard gamma memory address into a corrected gamma value adapted to the gamma memory address of the current gamma chip; the calculation result is rounded and converted into a hexadecimal number to obtain a corrected gamma value adapted to the current gamma chip; Write the corrected gamma value into the current gamma chip; The output signal generated by the current gamma chip based on the corrected gamma value is obtained, the output signal is compared with the standard gamma value, and the gamma correction result is determined based on the comparison result.

2. The gamma correction method as described in claim 1, characterized in that, The step of determining the compatibility between the standard gamma value and the current gamma chip includes: The compatibility between the standard gamma value and the current gamma chip is determined based on the standard gamma storage address.

3. The gamma correction method as described in claim 2, characterized in that, The step of determining the compatibility between the standard gamma value and the current gamma chip based on the standard gamma storage address includes: If the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, it is determined that the standard gamma value is compatible with the current gamma chip. If the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, it is determined that the standard gamma value is incompatible with the current gamma chip.

4. The gamma correction method as described in claim 1, characterized in that, The standard gamma value also includes: the standard gamma voltage value; The step of comparing the output signal with the standard gamma value and determining the gamma correction result based on the comparison result includes: The output signal is then converted from analog to digital to obtain the output voltage value. The output voltage value is compared with the standard gamma voltage value; If the comparison result shows that the output voltage value is the same as the standard gamma voltage value, the gamma correction is determined to be successful. If the comparison result shows that the output voltage value is different from the standard gamma voltage value, it is determined that the gamma correction was unsuccessful.

5. The gamma correction method as described in claim 1, characterized in that, The step of obtaining the standard gamma value includes: Read the first gamma voltage signal corresponding to the standard gamma value from the preset memory; The first gamma voltage signal is converted from analog to digital to obtain the standard gamma value.

6. The gamma correction method as described in claim 1, characterized in that, The step of writing the corrected gamma value into the current gamma chip includes: The corrected gamma value is converted from digital to analog to obtain a second gamma voltage signal; The second gamma voltage signal is sent to the current gamma chip to complete the writing of the corrected gamma value.

7. A driving circuit for a display panel, characterized in that, The driving circuit of the display panel includes: A source driver board, the source driver board including a flash memory for storing data; A control board is connected to a display panel and a source driver board. The control board includes a gamma chip and a timing controller connected to each other. The gamma chip is connected to the display panel and is used to transmit gamma signals to the display panel. The timing controller is connected to the source driver board and the display panel and is used to execute the gamma correction method as described in any one of claims 1 to 6.

8. A display panel, the display panel comprising a panel body and a driving circuit for the display panel as claimed in claim 7, wherein the driving circuit for the display panel is disposed in a non-display area of ​​the panel body.

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