Gamma voltage adjustment method, device, equipment and storage medium

Abstract

The present application provides a gamma voltage adjustment method, apparatus, device, and storage medium. The gamma voltage includes a first gamma voltage and a second gamma voltage, wherein the first gamma voltage is greater than the second gamma voltage. The method includes: obtaining a minimum display brightness value and a maximum display brightness value of a display panel; adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein the difference between the brightness value of the display panel collected at the minimum value and the minimum display brightness value is within a first preset range; and adjusting the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein the difference between the brightness value of the display panel collected at the maximum value and the maximum display brightness value is within a second preset range. This gamma voltage adjustment method can reasonably adjust the gamma voltage of the display panel, thereby facilitating a uniform transition between grayscales and achieving an improved display quality of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a gamma voltage adjustment method, device, equipment and storage medium. Background Art

[0002] With the continuous development of display technology, people's requirements for the display quality of display devices are also constantly increasing. Currently, in order to improve the display quality of display devices, it is usually necessary to adjust the input voltage and display brightness of the display panel through a gamma module to ensure that the input voltage and display brightness meet the gamma curve with a gamma value of 2.2 as much as possible.

[0003] Display panels are generally classified into grayscales ranging from 0 to 255. Grayscale 0 displays the lowest brightness, and its corresponding voltage is the first gamma voltage (the highest voltage of the gamma module, or VGMP). Grayscale 255 displays the highest brightness, and its corresponding voltage is the second gamma voltage (the lowest voltage of the gamma module, or VGSP). During the display panel manufacturing process, display panels in the same batch are usually set to the same gamma voltage range. If the VGSP and VGMP of a display panel are within the set gamma voltage range and can display normally, it is considered a qualified product; otherwise, it is considered scrapped.

[0004] However, during the manufacturing process of display panels, the VGSP and VGMP of some display panels in the same batch are set irrationally, which hinders the uniform transition between grayscales and results in poor display effects of the display panels. Summary of the Invention

[0005] The present application provides a gamma voltage adjustment method, apparatus, device and storage medium. The gamma voltage adjustment method can reasonably adjust the gamma voltage of a display panel, thereby facilitating a uniform transition between grayscales and achieving the purpose of improving the display effect of the display panel.

[0006] In a first aspect, the present application provides a gamma voltage adjustment method, wherein the gamma voltage includes a first gamma voltage and a second gamma voltage, the first gamma voltage being greater than the second gamma voltage, and the gamma voltage adjustment method includes:

[0007] Get the minimum and maximum brightness values of the display panel;

[0008] Adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel acquired at the minimum value and a minimum display brightness value is within a first preset range;

[0009] The second gamma voltage is adjusted to obtain a maximum value of the second gamma voltage, and a difference between a brightness value of the display panel collected at the maximum value and a maximum display brightness value is within a second preset range.

[0010] In some embodiments of the present application, adjusting the first gamma voltage includes:

[0011] The first gamma voltage is adjusted from small to large.

[0012] In some embodiments of the present application, adjusting the first gamma voltage from small to large includes:

[0013] The first gamma voltage is adjusted in a direction from small to large and with a first voltage adjustment step length to obtain a minimum value of the first gamma voltage.

[0014] In some embodiments of the present application, adjusting the first gamma voltage in a direction from small to large and with a first voltage adjustment step to obtain a minimum value of the first gamma voltage includes:

[0015] Adjusting the first gamma voltage in an ascending direction and with a first voltage adjustment step size to obtain a first adjustment value and a second adjustment value of the first gamma voltage; wherein the first adjustment value is less than the second adjustment value, a difference between a brightness value of the display panel acquired at the first adjustment value and a minimum display brightness value is not within a first preset range, and a difference between a brightness value of the display panel acquired at the second adjustment value and the minimum display brightness value is within the first preset range;

[0016] The first adjustment value is used as an initial value and is adjusted from small to large with a second voltage adjustment step to obtain a minimum value of the first gamma voltage; wherein the second adjustment step is smaller than the first adjustment step.

[0017] In some embodiments of the present application, adjusting the second gamma voltage includes:

[0018] The second gamma voltage is adjusted from large to small.

[0019] In some embodiments of the present application, adjusting the second gamma voltage in a direction from large to small includes:

[0020] adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step length to obtain a maximum value of the second gamma voltage;

[0021] Optionally, adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step to obtain a maximum value of the second gamma voltage includes:

[0022] Adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step size to obtain a third adjustment value and a fourth adjustment value of the second gamma voltage; wherein the third adjustment value is greater than the fourth adjustment value, a difference between a brightness value of the display panel acquired at the third adjustment value and a maximum display brightness value is not within a second preset range, and a difference between a brightness value of the display panel acquired at the fourth adjustment value and the maximum display brightness value is within the second preset range;

[0023] The third adjustment value is used as the initial value and is adjusted from large to small with a fourth voltage adjustment step to obtain the maximum value of the second gamma voltage; wherein the fourth adjustment step is smaller than the third adjustment step.

[0024] In some embodiments of the present application, further comprising:

[0025] Obtaining a standard color coordinate range of the display panel, wherein the color coordinates of the display panel are within the standard color coordinate range at a minimum value, and the color coordinates of the display panel are within the standard color coordinate range at a maximum value;

[0026] Optionally, the first preset range is a minimum display brightness value less than or equal to 10%;

[0027] The second preset range is less than or equal to 10% of the maximum display brightness value.

[0028] In a second aspect, the present application further provides a gamma voltage adjustment device, wherein the gamma voltage includes a first gamma voltage and a second gamma voltage, the first gamma voltage being greater than the second gamma voltage, and the gamma voltage adjustment device includes:

[0029] A first acquisition module is used to acquire the minimum display brightness value and the maximum display brightness value of the display panel;

[0030] a first regulating module, configured to regulate the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel acquired at the minimum value and a minimum display brightness value is within a first preset range;

[0031] The second regulating module is configured to regulate the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein a difference between a brightness value of the display panel acquired at the maximum value and a maximum display brightness value is within a second preset range.

[0032] In a third aspect, the present application further provides a gamma voltage adjustment device, comprising:

[0033] processor;

[0034] A memory storing computer program instructions, and a processor executing the computer program instructions to implement the gamma voltage adjustment method in any of the above embodiments.

[0035] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the gamma voltage adjustment method in any of the above embodiments is implemented.

[0036] In the technical solution of the present application, after obtaining the minimum and maximum display brightness values of the display panel, the first and second gamma voltages of the display panel are adjusted to obtain the minimum value of the first gamma voltage and the maximum value of the second gamma voltage. The difference between the collected brightness value corresponding to each gamma voltage and the minimum and maximum display brightness values is within a preset range. This allows for flexible adjustment of the gamma voltage of the display panel, and the adjusted gamma voltage difference is reduced, thereby making the voltage adjustment required for grayscale changes more precise. This can help achieve a uniform transition between grayscales, thereby improving the display effect of the display panel. In addition, the flexible adjustment of the gamma voltage of the display panel allows some display panels that do not meet the requirements to be adjusted to the required range through this adjustment method, thereby improving the yield of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0038] Figure 1 A flow chart illustrating a gamma voltage adjustment method provided in some embodiments of the present application is shown.

[0039] Figure 2 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0040] Figure 3 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0041] Figure 4 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0042] Figure 5 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0043] Figure 6 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0044] Figure 7 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0045] Figure 8 A flow chart illustrating a gamma voltage adjustment method provided in some other embodiments of the present application is shown.

[0046] Figure 9 A schematic structural diagram of a gamma voltage adjustment device provided in some embodiments of the present application is shown.

[0047] Figure 10 Schematic diagrams of the structures of gamma voltage adjustment devices provided in other embodiments of the present application are shown.

[0048] Figure 11 A schematic structural diagram of a gamma voltage adjustment device provided in some embodiments of the present application is shown. DETAILED DESCRIPTION

[0049] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, 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 configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0051] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:

[0052] During the display panel manufacturing process, the VGSP and VGMP settings for display panels within the same batch are typically identical and unadjustable. The inventors have discovered through experiments that some display panels have some discrepancies between their actual gamma voltages and the preset VGSP and VGMP settings. This increases the gamma voltage differential across the display panel, increasing the voltage adjustment step size for grayscale transitions. This in turn hinders uniform grayscale transitions, resulting in poor display quality.

[0053] To address the aforementioned issues, the present application provides a method, apparatus, device, and storage medium for adjusting the gamma voltage of a display panel. These methods can reasonably adjust the gamma voltage of a display panel, thereby promoting a uniform transition between grayscale levels and improving the display quality of the display panel. The following describes various embodiments of the method, apparatus, device, and computer-readable storage medium for adjusting the gamma voltage of a display panel, in conjunction with the accompanying drawings.

[0054] The display panel disclosed in this application may be a liquid crystal display panel (LCD), an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED), or a micro flat panel display panel (Micro-OLED or Micro-LED). The following description takes an OLED display panel as an example.

[0055] The present application provides a gamma voltage adjustment method, wherein the gamma voltage includes a first gamma voltage and a second gamma voltage, and the first gamma voltage is greater than the second gamma voltage. Figure 1 This is a flow chart of a gamma voltage adjustment method provided in some embodiments of the present application. Figure 1 As shown, the gamma voltage adjustment method includes:

[0056] S10: Obtaining the minimum display brightness value and the maximum display brightness value of the display panel;

[0057] S20: adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel acquired at the minimum value and a minimum display brightness value is within a first preset range;

[0058] S30: adjusting the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein a difference between a brightness value of the display panel collected at the maximum value and a maximum display brightness value is within a second preset range.

[0059] According to the gamma voltage adjustment method provided in an embodiment of the present application, after obtaining the minimum and maximum display brightness values of the display panel, the first and second gamma voltages of the display panel are adjusted to obtain the minimum value of the first gamma voltage and the maximum value of the second gamma voltage. The difference between the collected brightness value corresponding to each gamma voltage and the minimum and maximum display brightness values is within a preset range. This allows for flexible adjustment of the gamma voltage of the display panel, and the adjusted gamma voltage difference is reduced, thereby making the voltage adjustment required for grayscale changes more precise. This can help achieve a uniform transition between grayscales, thereby improving the display quality of the display panel. In addition, the flexible adjustment of the gamma voltage of the display panel allows some display panels that do not meet the requirements to be adjusted to the required range through this adjustment method, thereby improving the yield of the display panel.

[0060] For example, according to the gamma voltage adjustment method provided in the embodiment of the present application, the display panel can be adjusted before leaving the factory and the adjusted first gamma voltage and second gamma voltage can be stored, so as to facilitate calling the first gamma voltage and second gamma voltage determined by the adjustment method when the display panel displays to improve its display effect.

[0061] For example, an OLED display panel with a gamma accuracy of 10 bits has 256 grayscale levels from 0 to 255. It is understood that the first gamma voltage in the embodiment of the present application corresponds to the gamma voltage of grayscale 255, and the second gamma voltage corresponds to the gamma voltage of grayscale 0.

[0062] Specifically, the data voltage corresponding to each gray scale can be obtained according to the following formula.

[0063]

[0064] Wherein, VGMP represents the minimum value of the first gamma voltage;

[0065] VGSP represents the maximum value of the second gamma voltage;

[0066] DATA indicates grayscale;

[0067] Vdata represents the data voltage corresponding to the grayscale.

[0068] The display panel can have multiple display brightness values (DBV). For example, taking a mobile phone as an example, it has a brightness bar, and the display brightness can be adjusted by sliding the brightness bar. Different display brightness values can be understood as different positions of the brightness bar. The same grayscale image has different display brightness at different display brightness values. The lowest display brightness value of the display panel can be understood as the brightness corresponding to the lowest position of the brightness bar, and the highest display brightness value of the display panel can be understood as the brightness corresponding to the highest position of the brightness bar.

[0069] In some embodiments of the present application, the minimum display brightness value and the maximum display brightness value of the display panel can be adjusted according to a preset contrast ratio. It can be understood that the contrast ratio here refers to the ratio between the maximum display brightness value and the minimum display brightness value. For example, if the preset contrast ratio is 1000:1, the brightness value of the 255-level grayscale, that is, the maximum display brightness value, can be 500cd / m 2 , then the brightness value of grayscale 0, that is, the lowest display brightness value can be 0.5cd / m 2 .

[0070] In step S20, the first gamma voltage is adjusted based on the minimum display brightness value of the display panel obtained in step S10 to obtain a minimum value of the first gamma voltage (VGMP). The difference between the brightness value of the display panel acquired at VGMP and the minimum display brightness value is within a first preset range. The adjustable VGMP can meet the gamma voltage requirements of different display panels, thereby ensuring that each display panel has an appropriate gamma voltage difference. This helps improve the black state display effect and the uniform grayscale transition, thereby achieving the purpose of improving the display quality.

[0071] Please refer to Figure 2 In some embodiments of the present application, adjusting the first gamma voltage in step S20 may include:

[0072] S21: adjusting the first gamma voltage from small to large.

[0073] For example, when adjusting the gamma voltage of any grayscale in the grayscale range of 0-255, the gamma voltage generally ranges from 2.0V to 6.5V. Therefore, the initial voltage of the first gamma voltage can be set small enough and the first gamma voltage can be adjusted from small to large.

[0074] In the above embodiments, the first gamma voltage is adjusted from small to large so that the difference between the display brightness value of the display panel under VGMP and the minimum display brightness value is within the first preset range, further reducing the gamma voltage difference, making the voltage adjustment of the grayscale change more precise, and further promoting the uniform transition of the grayscale.

[0075] Please refer to Figure 3 In some embodiments of the present application, adjusting the first gamma voltage from small to large in step S21 may include:

[0076] S211: adjusting the first gamma voltage in a direction from small to large and with a first voltage adjustment step size.

[0077] In the above embodiments, the obtained VGMP can be reduced by adjusting the voltage from small to large with the first voltage adjustment step size, which helps to reduce the gamma voltage difference and facilitates a uniform transition of grayscales.

[0078] Please refer to Figure 4 In some embodiments of the present application, step S211 may include:

[0079] S2111: adjusting the first gamma voltage in an ascending direction and with a first voltage adjustment step size to obtain a first adjustment value and a second adjustment value of the first gamma voltage; wherein the first adjustment value is less than the second adjustment value, a difference between a brightness value of the display panel acquired at the first adjustment value and a minimum display brightness value is not within a first preset range, and a difference between a brightness value of the display panel acquired at the second adjustment value and the minimum display brightness value is within the first preset range;

[0080] S2112: Taking the first adjustment value as the initial value, adjusting the first adjustment value from small to large and with a second voltage adjustment step to obtain a minimum value of the first gamma voltage; wherein the second adjustment step is smaller than the first adjustment step.

[0081] Exemplarily, the initial voltage of the first gamma voltage is 3.5V, the first voltage adjustment step is 0.5V, and the first gamma voltage is adjusted according to the first voltage adjustment step to obtain a first adjustment value of 4.5V and a second adjustment value of 5.0V. The difference between the brightness value of the display panel collected at the first adjustment value of 4.5V and the minimum display brightness value is outside the first preset range, and the difference between the brightness value of the display panel collected at the second adjustment value of 5.0V and the minimum display brightness value is within the first preset range. Using the first adjustment value of 4.5V as the initial value and increasing the voltage by a second voltage adjustment step of 0.1V, when the first gamma voltage reaches 4.7V, the difference between the brightness value of the display panel collected and the minimum display brightness value is within the first preset range, thereby obtaining the minimum value of the first gamma voltage.

[0082] In the above embodiments, the obtained VGMP can be made as small as possible according to the second voltage adjustment step size, which can further reduce the gamma voltage difference and further facilitate a more uniform transition of grayscales.

[0083] In step S30, the second gamma voltage is adjusted based on the maximum display brightness value of the display panel obtained in step S10 to obtain a maximum value of the second gamma voltage (VGSP). The difference between the brightness value of the display panel acquired at VGSP and the maximum display brightness value is within a second preset range. The adjustable VGSP can meet the gamma voltage requirements of different display panels, thereby ensuring that each display panel has an appropriate gamma voltage difference. This helps improve the display quality of the white state and the uniform transition of grayscale, thereby achieving the purpose of improving the display quality.

[0084] Please refer to Figure 5 In some embodiments of the present application, adjusting the second gamma voltage in step S30 may include:

[0085] S31: adjusting the second gamma voltage from large to small.

[0086] For example, the second gamma voltage generally ranges from 0.0V to 5.0V. The initial voltage of the second gamma voltage can be set to be smaller than the initial voltage of the first gamma voltage, and the second gamma voltage can be adjusted from large to small.

[0087] In the above embodiments, the second gamma voltage is adjusted from large to small so that the difference between the display brightness value of the display panel under VGSP and the maximum display brightness value is within the second preset range, further reducing the gamma voltage difference, making the voltage adjustment of the grayscale change more precise, and further promoting the uniform transition of the grayscale.

[0088] Please refer to Figure 6 In some embodiments of the present application, step S31 may include:

[0089] S311: adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step length to obtain a maximum value of the second gamma voltage.

[0090] In the above embodiments, by adjusting the voltage from large to small and using the third voltage adjustment step, a larger VGSP can be obtained, which helps to reduce the gamma voltage difference and facilitates a uniform transition of grayscales.

[0091] Please refer to Figure 7 In some embodiments of the present application, step S311 may include:

[0092] S3111: Adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step size to obtain a third adjustment value and a fourth adjustment value of the second gamma voltage; wherein the third adjustment value is greater than the fourth adjustment value, a difference between a brightness value of the display panel acquired at the third adjustment value and a maximum display brightness value is not within a second preset range, and a difference between a brightness value of the display panel acquired at the fourth adjustment value and the maximum display brightness value is within the second preset range;

[0093] S3112: Taking the third adjustment value as the initial value, and adjusting the third adjustment value in a direction from large to small and with a fourth voltage adjustment step to obtain a maximum value of the second gamma voltage; wherein the fourth adjustment step is smaller than the third adjustment step.

[0094] Exemplarily, the initial voltage of the second gamma voltage is 2.5V, the third voltage adjustment step is 0.5V, and the second gamma voltage is adjusted according to the third voltage adjustment step to obtain a third adjustment value of 2.0V and a fourth adjustment value of 1.5V. The difference between the brightness value of the display panel collected at the third adjustment value of 2.0V and the maximum display brightness value is outside the second preset range, and the difference between the brightness value of the display panel collected at the fourth adjustment value of 1.5V and the maximum display brightness value is within the second preset range. Taking the third adjustment value of 2.0V as the initial value and decreasing the fourth voltage adjustment step by 0.1V, when the second gamma voltage is 1.7V, the difference between the brightness value of the display panel collected and the minimum display brightness value is within the second preset range, and the maximum value of the second gamma voltage (VGSP) is obtained.

[0095] In the above embodiments, the obtained VGSP can be made as large as possible according to the fourth voltage adjustment step, which can further reduce the gamma voltage difference and further facilitate a more uniform transition of grayscales.

[0096] Please refer to Figure 8 In some embodiments of the present application, the method for adjusting the gamma voltage of a display panel further includes:

[0097] S40: Acquire a standard color coordinate range of the display panel, wherein the color coordinates of the display panel are within the standard color coordinate range at a minimum value, and the color coordinates of the display panel are within the standard color coordinate range at a maximum value.

[0098] In the above embodiments, the color coordinates of the display panel under VGMP and VGSP meet the color coordinate requirements, which can reduce the occurrence of color bands and further improve the display effect of the display panel.

[0099] In some embodiments of the present application, the first preset range is a minimum display brightness value less than or equal to 10%, and the second preset range is a maximum display brightness value less than or equal to 10%.

[0100] Please refer to Figure 9 , the present application also provides a gamma voltage adjustment device 100, comprising:

[0101] A first acquisition module 101 is configured to acquire a minimum display brightness value and a maximum display brightness value of a display panel;

[0102] A first adjustment module 102 is configured to adjust the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel acquired at the minimum value and a minimum display brightness value is within a first preset range;

[0103] The second adjustment module 103 is configured to adjust the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein the difference between the brightness value of the display panel collected at the maximum value and the highest display brightness value is within a second preset range.

[0104] According to the gamma voltage adjustment device provided in an embodiment of the present application, after obtaining the minimum and maximum display brightness values of the display panel, the first and second gamma voltages of the display panel are adjusted to obtain the minimum value of the first gamma voltage and the maximum value of the second gamma voltage. In addition, the difference between the collected brightness value corresponding to each gamma voltage and the minimum and maximum display brightness values is within a preset range. This allows for flexible adjustment of the gamma voltage of the display panel, and the adjusted gamma voltage difference is reduced, thereby making the voltage adjustment required for grayscale changes more precise. This can help achieve a uniform transition between grayscales, thereby improving the display effect of the display panel. In addition, the flexible adjustment of the gamma voltage of the display panel allows some display panels that do not meet the requirements to be adjusted to the required range through the adjustment device, thereby improving the yield of the display panel.

[0105] In some embodiments of the present application, the first adjustment module 102 is further configured to:

[0106] The first gamma voltage is adjusted from small to large.

[0107] In some embodiments of the present application, the first adjustment module 102 is further configured to:

[0108] The first gamma voltage is adjusted in a direction from small to large and with a first voltage adjustment step length.

[0109] In some embodiments of the present application, the first adjustment module 102 may also be used to:

[0110] Adjusting the first gamma voltage in an ascending direction and with a first voltage adjustment step size to obtain a first adjustment value and a second adjustment value of the first gamma voltage; wherein the first adjustment value is less than the second adjustment value, a difference between a brightness value of the display panel acquired at the first adjustment value and a minimum display brightness value is not within a first preset range, and a difference between a brightness value of the display panel acquired at the second adjustment value and the minimum display brightness value is within the first preset range;

[0111] The first adjustment module 102 can also be used to:

[0112] The first adjustment value is used as an initial value and is adjusted from small to large with a second voltage adjustment step to obtain a minimum value of the first gamma voltage; wherein the second adjustment step is smaller than the first adjustment step.

[0113] In some embodiments of the present application, the second adjustment module 103 is further configured to:

[0114] The second gamma voltage is adjusted from large to small.

[0115] In some embodiments of the present application, the second adjustment module 103 is further configured to:

[0116] The second gamma voltage is adjusted in a direction from large to small and with a third voltage adjustment step length to obtain a maximum value of the second gamma voltage.

[0117] In some embodiments of the present application, the second adjustment module 103 may also be used to:

[0118] Adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step size to obtain a third adjustment value and a fourth adjustment value of the second gamma voltage; wherein the third adjustment value is greater than the fourth adjustment value, a difference between a brightness value of the display panel acquired at the third adjustment value and a maximum display brightness value is not within a second preset range, and a difference between a brightness value of the display panel acquired at the fourth adjustment value and the maximum display brightness value is within the second preset range;

[0119] The second adjustment module 103 can also be used to:

[0120] The third adjustment value is used as the initial value and is adjusted from large to small with a fourth voltage adjustment step to obtain the maximum value of the second gamma voltage; wherein the fourth adjustment step is smaller than the third adjustment step.

[0121] Please refer to Figure 10 In some embodiments of the present application, the gamma voltage adjustment device 100 may further include:

[0122] The second acquisition module 104 acquires a standard color coordinate range of the display panel. At a minimum value, the color coordinates of the display panel are within the standard color coordinate range. At a maximum value, the color coordinates of the display panel are within the standard color coordinate range.

[0123] The gamma voltage regulating device in the embodiments of the present application can be a device, or a component, integrated circuit, or chip in an electronic device. The device can be a mobile electronic device or a non-mobile electronic device. For example, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., and the embodiments of the present application are not specifically limited.

[0124] The gamma voltage adjustment device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0125] The gamma voltage adjustment device provided in the embodiment of the present application can achieve Figure 1-8 To avoid repetition, each process in the method embodiment will not be described here.

[0126] The present application further provides a gamma voltage adjustment device 200 , comprising a processor 201 and a memory 202 storing computer program instructions. When the processor executes the computer program instructions, the gamma voltage adjustment method in any of the above embodiments is implemented.

[0127] Specifically, the processor 201 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0128] The memory 202 may include a large-capacity memory for data or instructions. For example, the memory 202 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these.

[0129] In some embodiments of the present application, the memory 202 may include removable or non-removable (or fixed) media.

[0130] In some embodiments of the present application, the memory 202 may also be inside or outside the integrated gateway disaster recovery device.

[0131] In some specific embodiments of the present application, the memory 202 is a non-volatile solid-state memory.

[0132] In some other specific embodiments of the present application, the memory 202 includes a read-only memory (ROM).

[0133] Exemplarily, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM) or a flash memory or a combination of two or more of these.

[0134] The processor 201 reads and executes computer program instructions stored in the memory 202 to implement any one of the gamma voltage adjustment methods in the above embodiments.

[0135] In some embodiments of the present application, the gamma voltage adjustment device may further include a communication interface 203 and a bus 204. Figure 11 As shown, the processor 201, the memory 202, and the communication interface 203 are connected via a bus 204 and communicate with each other.

[0136] The communication interface 203 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0137] The bus 204 includes hardware, software, or both, coupling the components of the compensation voltage determination device to each other. For example, the bus 204 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industrial Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industrial Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel 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 Area Network (VLB) bus, or other suitable buses, or a combination of two or more of these.

[0138] In some embodiments of the present application, bus 204 may include one or more buses. Although embodiments of the present application describe and illustrate a particular bus, the present application contemplates any suitable bus or interconnect.

[0139] The gamma voltage adjustment device can execute the gamma voltage adjustment method in the embodiment of the present application, thereby realizing the combination of Figure 1 and Figure 9 The invention discloses a gamma voltage adjustment method and a gamma voltage adjustment device.

[0140] The present application also provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the computer program can implement the gamma voltage adjustment method described in the above embodiment and achieve the same technical effect. To avoid repetition, the above computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., and is not limited to this.

[0141] For example, the computer-readable storage medium may include a non-transitory computer-readable storage medium.

[0142] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0143] Aspects of the present application have been described above with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed via the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. This 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 box in the block diagram and / or the flowchart and the combination of the boxes in the block diagram and / or the flowchart can also be implemented by the dedicated hardware that performs the specified function or action, or can be implemented by the combination of dedicated hardware and computer instructions.

[0144] While the embodiments described above are not exhaustive, they do not limit the present application to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A gamma voltage adjustment method, characterized in that: The gamma voltage includes a first gamma voltage and a second gamma voltage, the first gamma voltage is greater than the second gamma voltage, and the gamma voltage adjustment method includes: Get the minimum and maximum brightness values of the display panel; adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel acquired at the minimum value and the lowest display brightness value is within a first preset range; adjusting the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein a difference between a brightness value of the display panel acquired at the maximum value and the highest display brightness value is within a second preset range; The adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage includes: adjusting the first gamma voltage in a direction from small to large and with a first voltage adjustment step length to obtain a first adjustment value and a second adjustment value of the first gamma voltage; The first adjustment value is smaller than the second adjustment value, a difference between the brightness value of the display panel acquired under the first adjustment value and the minimum display brightness value is not within the first preset range, and a difference between the brightness value of the display panel acquired under the second adjustment value and the minimum display brightness value is within the first preset range; The first adjustment value is used as an initial value, and the first adjustment value is adjusted from small to large and with a second voltage adjustment step to obtain a minimum value of the first gamma voltage; wherein the second voltage adjustment step is smaller than the first voltage adjustment step.

2. The gamma voltage adjustment method according to claim 1, wherein: The adjusting the second gamma voltage includes: The second gamma voltage is adjusted from large to small.

3. The gamma voltage adjustment method according to claim 2, wherein: The adjusting the second gamma voltage in a direction from large to small includes: The second gamma voltage is adjusted in a direction from large to small and with a third voltage adjustment step length.

4. The gamma voltage adjustment method according to claim 3, wherein: The adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step to obtain a maximum value of the second gamma voltage includes: adjusting the second gamma voltage in a direction from large to small and with a third voltage adjustment step length to obtain a maximum value of the second gamma voltage; The second gamma voltage is adjusted in a direction from large to small and with a third voltage adjustment step size to obtain a third adjustment value and a fourth adjustment value of the second gamma voltage; wherein the third adjustment value is greater than the fourth adjustment value, a difference between the brightness value of the display panel collected at the third adjustment value and the maximum display brightness value is not within a second preset range, and a difference between the brightness value of the display panel collected at the fourth adjustment value and the maximum display brightness value is within a second preset range; The third adjustment value is used as an initial value, and the third adjustment value is adjusted from large to small and with a fourth voltage adjustment step to obtain the maximum value of the second gamma voltage; wherein the fourth voltage adjustment step is smaller than the third voltage adjustment step.

5. The gamma voltage adjustment method according to claim 1, wherein: Also includes: A standard color coordinate range of the display panel is obtained, wherein the color coordinates of the display panel are within the standard color coordinate range at the minimum value, and the color coordinates of the display panel are within the standard color coordinate range at the maximum value.

6. The gamma voltage adjustment method according to claim 5, wherein: The first preset range is the minimum display brightness value less than or equal to 10%; The second preset range is less than or equal to 10% of the maximum display brightness value.

7. A gamma voltage adjustment device, characterized in that: The gamma voltage includes a first gamma voltage and a second gamma voltage, the first gamma voltage is greater than the second gamma voltage, and the gamma voltage adjustment device includes: A first acquisition module is used to acquire the minimum display brightness value and the maximum display brightness value of the display panel; a first regulating module, configured to regulate the first gamma voltage to obtain a minimum value of the first gamma voltage, wherein a difference between a brightness value of the display panel collected at the minimum value and the minimum display brightness value is within a first preset range; a second adjustment module, configured to adjust the second gamma voltage to obtain a maximum value of the second gamma voltage, wherein a difference between a brightness value of the display panel collected at the maximum value and the maximum display brightness value is within a second preset range; The adjusting the first gamma voltage to obtain a minimum value of the first gamma voltage includes: adjusting the first gamma voltage in a direction from small to large and with a first voltage adjustment step length to obtain a first adjustment value and a second adjustment value of the first gamma voltage; The first adjustment value is smaller than the second adjustment value, a difference between the brightness value of the display panel acquired under the first adjustment value and the minimum display brightness value is not within the first preset range, and a difference between the brightness value of the display panel acquired under the second adjustment value and the minimum display brightness value is within the first preset range; The first adjustment value is used as an initial value, and the first adjustment value is adjusted from small to large and with a second voltage adjustment step to obtain a minimum value of the first gamma voltage; wherein the second voltage adjustment step is smaller than the first voltage adjustment step.

8. A gamma voltage adjustment device, characterized in that: include: processor; A memory storing computer program instructions, wherein the processor implements the gamma voltage adjustment method according to any one of claims 1 to 6 when executing the computer program instructions.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the gamma voltage adjustment method according to any one of claims 1 to 6 is implemented.

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