Display panel programming method, programming device and computer storage medium

Abstract

The application relates to the technical field of display panels, in particular to a display panel burning method, a burning device and a computer storage medium. The display panel burning method comprises the following steps: adjusting a source voltage to match the source voltage of a bound gray scale interval, wherein the source voltage comprises a driving power supply voltage and a common ground terminal voltage; and burning the source voltage of the bound gray scale interval after matching. The display panel burning method can reduce the power consumption generated by resistance load and reduce the power consumption of the display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel programming method, a programming device and a computer storage medium. BACKGROUND

[0002] Organic Light Emitting Diode (OLED) display panel has the advantages of thin, light, wide viewing angle, active light-emitting, continuous adjustable light-emitting color, fast response speed, low power consumption, low driving voltage, wide working temperature range, simple production process, high light-emitting efficiency and flexible display, and can be widely applied to television, mobile phone and public information display. However, with the continuous development of the communication industry, the function of display products is becoming more and more powerful, and the power consumption is also becoming more and more large. However, at present, when reducing the power consumption of the display panel, the resolution of the display panel is easily reduced, which affects the display effect of the display panel. Therefore, how to reduce the power consumption of the display product without reducing the resolution of the display panel is a technical problem to be solved at present. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a display panel programming method, a programming device and a medium, which can reduce the power consumption of the display panel without reducing the resolution of the display panel.

[0004] To solve the above technical problem, one technical solution adopted by the present application is to provide a display panel programming method, comprising: adjusting a source voltage to match a source voltage of a bound gray scale interval, the source voltage comprising a driving power supply voltage and a common ground end voltage; and programming the matched source voltage of the bound gray scale interval.

[0005] The adjusting of the source voltage to match the source voltage of the bound gray scale interval comprises: adjusting a high-level power supply voltage to match a highest bound gray scale interval, and determining the high-level power supply voltage as the driving power supply voltage. The programming of the matched source voltage of the bound gray scale interval comprises: programming the driving power supply voltage.

[0006] The adjusting of the high-level power supply voltage to match the highest bound gray scale interval, and the determination of the high-level power supply voltage as the driving power supply voltage, comprises: obtaining a voltage value corresponding to the highest bound gray scale interval as the driving power supply voltage according to a gamma curve.

[0007] The adjusting of the source voltage to match the source voltage of the bound gray scale interval comprises: adjusting a low-level power supply voltage to match a low-level power supply voltage of each bound gray scale interval, and determining the low-level power supply voltage as a common ground end voltage of the bound gray scale interval. The programming of the matched source voltage of the bound gray scale interval comprises: programming the common ground end voltage of each bound gray scale interval.

[0008] The low-level power supply voltage is adjusted to match the low-level power supply voltage of each bound gray scale interval, and the low-level power supply voltage is determined as the common ground terminal voltage, comprising:

[0009] A first low-level power supply voltage corresponding to a gray scale in the bound gray scale interval is obtained.

[0010] A second low-level power supply voltage is debugged based on the first low-level power supply voltage as the common ground terminal voltage, so that the luminance of the source voltage driving the pixel conforms to the luminance of the bound gray scale interval, wherein the second low-level power supply voltage is greater than the first low-level power supply voltage.

[0011] The second low-level power supply voltage is debugged based on the first low-level power supply voltage as the common ground terminal voltage, comprising: based on the first low-level power supply voltage, gradually increasing the debug value as the debug voltage, testing the luminance of the display panel, determining the maximum debug voltage conforming to the luminance of the bound gray scale interval, and the maximum debug voltage is the second low-level power supply voltage.

[0012] The second low-level power supply voltage is debugged based on the first low-level power supply voltage as the common ground terminal voltage, comprising: based on the first low-level power supply voltage, gradually increasing the debug value as the debug voltage, testing the luminance of the display panel, determining the maximum debug voltage conforming to the luminance of the bound gray scale interval, and the maximum debug voltage is the second low-level power supply voltage.

[0013] Based on the first low-level power supply voltage, the debug value is gradually increased as the debug voltage, and the luminance and color coordinates of the display panel are tested.

[0014] Based on the luminance curve of the adjacent debug voltage, it is judged whether the slope of the luminance curve appears mutation, and the maximum debug voltage without mutation is determined as the second low-level power supply voltage.

[0015] The second low-level power supply voltage is debugged based on the first low-level power supply voltage as the common ground terminal voltage, comprising: based on the first low-level power supply voltage, gradually increasing the debug value as the debug voltage, testing the luminance of the display panel, determining the maximum debug voltage conforming to the luminance of the bound gray scale interval, and the maximum debug voltage is the second low-level power supply voltage.

[0016] It is determined that the color coordinates of the second low-level power supply voltage conform to the preset range.

[0017] Based on the second low-level power supply voltage and according to the gamma curve, the voltage values corresponding to all bound gray scale intervals are obtained as the common ground terminal voltage.

[0018] The present application also includes a second technical solution, a gamma adjustment device comprising a memory and a processor, the memory storing a program, the program being read and executed by the processor, realizing the display panel burning method described above.

[0019] The third technical solution of the present application is a computer storage medium, which stores a computer program. When the computer program is executed by a processor, the display panel burning method described above can be realized.

[0020] The beneficial effects of the present application are as follows: Different from the prior art, the display panel burning method of the present application can adjust the driving power supply voltage and the common ground terminal voltage to match the band driving power supply voltage and the common ground terminal voltage respectively, so that the driving power supply voltage and the common ground terminal voltage of the present application are dynamic values, which match the band gray scale, thereby reducing the driving power supply voltage and the common ground terminal voltage, reducing the power consumption generated by the resistance load, reducing the power consumption of the display panel, and maintaining the resolution and brightness of the display image without reducing the resolution of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a flowchart of the first embodiment of the display panel burning method of the present application;

[0022] Figure 2 is a flowchart of the second embodiment of the display panel burning method of the present application;

[0023] Figure 3 is a flowchart of the third embodiment of the display panel burning method of the present application;

[0024] Figure 4 is a flowchart of the fourth embodiment of the display panel burning method of the present application;

[0025] Figure 5 is a structural block diagram of an embodiment of the display panel burning device of the present application;

[0026] Figure 6 is a structural block diagram of the computer storage medium of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application.

[0028] When the display panel displays, the gray scale value distribution interval value of numerous display image pixel points is 0-255. The driving power supply voltage (VGMP) and the circuit common ground terminal voltage (ELVSS) of the display panel are fixed values, that is, the driving power supply voltage signal and the circuit common ground terminal voltage signal of the display panel can satisfy the gray scale value of 0-255 pixel points emitting light.

[0029] However, when the display panel displays a picture, the lowest gray scale value of all the pixel points of the display picture is not 0 and the highest gray scale value is not 255. At least part of the highest gray scale value of the display picture is lower than 255 or the lowest gray scale value is greater than 0, or both the highest gray scale value is lower than 255 and the lowest gray scale value is greater than 0 exist, in the related art, a fixed driving power supply voltage and a circuit common ground terminal voltage are adopted, and a resistance load is used to control the driving voltage to match the gray scale of the display picture, which will cause the display panel to generate power consumption.

[0030] In order to reduce the power consumption of the display panel, an embodiment of the present application provides a display panel burning method, comprising:

[0031] S110: adjusting the source voltage to match the source voltage of the bound gray scale interval (band), the source voltage including the driving power supply voltage (VGMP) and the common ground terminal voltage (ELVSS).

[0032] In the embodiment of the present application, the highest gray scale value of the display panel as a whole is 255 and the lowest gray scale value is 0. In other embodiments, the gray scale of the display panel can also be in other ranges. In the embodiment of the present application, the bound gray scale interval (band) is a defined interval, for example, 16 gray scales are one bound gray scale interval, 0-15 gray scales are the lowest bound gray scale interval, 16-31 gray scales are the second bound gray scale interval, 32-47 gray scales are the third bound gray scale interval, and 240-255 gray scales are the highest gray scale interval.

[0033] S120: burning the matched source voltage of the bound gray scale interval.

[0034] In the embodiment of the present application, the matched source voltage of the bound gray scale interval is burned by OTP, and in the embodiment of the present application, the specific source voltage value is obtained and burned and stored in the register, so that it can be directly read when used later.

[0035] In the embodiment of the present application, the driving power supply voltage and the common ground terminal voltage are adjusted to respectively match the driving power supply voltage and the common ground terminal voltage of the bound gray scale interval (band), so that the driving power supply voltage and the common ground terminal voltage of the embodiment of the present application are dynamic values, which match the bound gray scale, thereby reducing the driving power supply voltage and the common ground terminal voltage, reducing the power consumption generated by the resistance load, in the case of a fixed display panel current, the power consumption of the display panel can be reduced, and the resolution and brightness of the display picture can be maintained, and the resolution of the display panel is not reduced.

[0036] In an embodiment of the present application, as shown in Figure 2 the display panel burning method comprises:

[0037] S210: adjust the high-level power supply voltage to match the highest bound gray scale interval, and determine the high-level power supply voltage as the driving power supply voltage.

[0038] The embodiment of the present application adjusts the high-level power supply voltage to match the highest bound gray scale interval, so that the driving power supply voltage can be applied to the highest level power supply voltage of all bound gray scale intervals.

[0039] Specifically, in the embodiment of the present application, the voltage value corresponding to the highest bound gray scale interval obtained according to the gamma curve is the driving power supply voltage. In the embodiment of the present application, the voltage value corresponding to the highest bound gray scale interval can be obtained based on the gamma curve. For example, the conventional driving power supply voltage is 7.4V, and the driving power supply voltage value corresponding to the highest bound gray scale interval obtained according to the gamma curve is 6.9V. Therefore, it can be determined that the driving power supply voltage of the highest bound gray scale interval is 6.9V. The values of 7.4V and 6.9V in the embodiment of the present application are only examples, and can also be other values. In the embodiment of the present application, the voltage value corresponding to the highest bound gray scale interval obtained according to the gamma curve is the driving power supply voltage, which can ensure that the brightness of the display panel is within the normal value range.

[0040] In the embodiment of the present application, the high-level power supply voltage matched by the highest bound gray scale interval is the maximum high-level power supply voltage of all bound gray scale intervals.

[0041] S220: burn the driving power supply voltage.

[0042] In the embodiment of the present application, the voltage value 6.9V is stored in the register, and the voltage value 6.9V is used as the driving power supply voltage of the highest bound gray scale interval.

[0043] In the embodiment of the present application, the driving power supply voltage is adjusted to match the bound gray scale interval, so that the driving power supply voltage can be dynamically debugged, and the driving power supply voltage can be reduced, so that the gate-on voltage (VGH) and the analog power supply voltage (AVDD) can be reduced, the corresponding power consumption under the same current will be reduced, and the power consumption of the display panel can be reduced.

[0044] The display panel burning method of one embodiment of the present application, as shown in Figure 3 , includes:

[0045] S310: adjust the low-level power supply voltage to match the low-level power supply voltage of each bound gray scale interval, and determine the low-level power supply voltage as the common ground end voltage of the bound gray scale interval.

[0046] In the embodiment of the present application, the highest gray scale value of the display panel as a whole is 255, and the lowest gray scale value is 0. In the embodiment of the present application, 16 gray scales are a bound gray scale interval, so there are 16 bound gray scale intervals.

[0047] The embodiment of the present application can dynamically adjust the low-level power supply voltage to match each binding gray scale interval, so that the brightness of the binding gray scale interval meets the demand. In the embodiment of the present application, the display panel power consumption is reduced by regulating the common ground voltage (ELVSS).

[0048] S320: Burning the common ground voltage of each binding gray scale interval.

[0049] In the embodiment of the present application, each binding gray scale interval can correspond to a common ground voltage, multiple common ground voltages can be formed, and OTP burning can be performed to store in the register.

[0050] In the embodiment of the present application, by dynamically adjusting the common ground voltage, the voltage of the common ground is matched with the binding gray scale interval, which can reduce the common ground voltage, and in the case of a certain current value, the power consumption can be reduced.

[0051] In an embodiment of the present application, the display panel burning method, as shown in Figure 4 , includes:

[0052] S410: Obtain the first low-level power supply voltage corresponding to a gray scale in the binding gray scale interval.

[0053] In the embodiment of the present application, for example, in the 0-15 binding gray scale interval, the first low-level power supply voltage corresponding to the 0 gray scale pixel is obtained, or the first low-level power supply voltage corresponding to the 1 or 2 or 3 gray scale pixel is obtained. In the embodiment of the present application, the first low-level power supply voltage corresponding to a gray scale in the binding gray scale interval is provided by simulation.

[0054] S420: Debug the second low-level power supply voltage as the common ground voltage based on the first low-level power supply voltage, so that the brightness of the source voltage driving the pixel meets the brightness of the binding gray scale interval, wherein the second low-level power supply voltage is greater than the first low-level power supply voltage.

[0055] In the embodiment of the present application, the maximum second low-level power supply voltage is obtained by simulation in each binding gray scale interval, and the maximum second low-level power supply voltage is used as the common ground voltage, so that the maximum common ground voltage corresponding to the binding gray scale interval can be obtained, thereby the minimum driving voltage of the binding gray scale interval can be reduced, and the power consumption of the display panel in the binding gray scale interval can be reduced.

[0056] In the embodiment of the present application, based on the first low-level power supply voltage, the debug value is gradually increased as the debug voltage, the brightness of the display panel is tested, the maximum debug voltage meeting the brightness of the binding gray scale interval is determined, and the maximum debug voltage is the second low-level power supply voltage.

[0057] The first low-level power supply voltage V0 is gradually increased by a debugging value, for example, the debugging value is 0.1V, that is, the first low-level power supply voltage V0 is gradually increased by 0.1V, and the test is performed. For example, the debugging voltage is V0+0.1V in the first test, and the debugging voltage is V0+n*0.1V in the nth test. For example, the debugging voltage is V0+0.5V in the fifth test. In the embodiment of the application, the brightness of the display panel can be tested based on the debugging voltage V0+n*0.1V. When the debugging voltage is V0+(n+1)*0.1V in the n+1th test, the brightness of the display panel does not meet the brightness of the bound gray scale interval; when the debugging voltage is V0+n*0.1V in the nth test, the brightness of the display panel meets the brightness of the bound gray scale interval. It is indicated that the debugging voltage V0+n*0.1V in the nth test is the maximum debugging voltage that meets the brightness of the bound gray scale interval. It is determined that the maximum debugging voltage is the second low-level power supply voltage, and the second low-level power supply voltage is the lowest voltage of the driving voltage of the current display frame.

[0058] In the embodiment of the application, the brightness and color coordinates of the display panel are tested based on the first low-level power supply voltage, which is gradually increased by a debugging value as a debugging voltage. Specifically, in the embodiment of the application, the brightness and color coordinates of the center point of the display panel are tested, and in other embodiments, the test position can also be other positions of the display panel.

[0059] Based on the brightness curve of the adjacent debugging voltage, it is determined whether the slope of the brightness curve appears mutation, and the maximum debugging voltage that does not appear mutation is determined as the second low-level power supply voltage. In the embodiment of the application, whether the brightness of the pixel driven by the source voltage meets the brightness of the bound gray scale interval is determined by judging whether the slope of the brightness curve appears mutation. If the slope of the brightness curve does not appear mutation, it is indicated that the previous debugging voltage is not the final debugging voltage, and further test is needed. Until the slope of the brightness curve appears mutation. When the slope of the brightness curve appears mutation, it is indicated that the brightness of the pixel driven by the current debugging voltage does not meet the brightness of the current bound gray scale interval, and the brightness of the pixel driven by the previous debugging voltage meets the brightness of the current bound gray scale interval. In the embodiment of the application, whether the slope of the brightness curve appears mutation is determined, so that the maximum debugging voltage is determined.

[0060] determining whether the color coordinates of the second low-level power supply voltage meet a preset range. In an embodiment of the present application, the color coordinates of the second low-level power supply voltage are the same as the color coordinates of the maximum debugging voltage. In an embodiment of the present application, after the slope of the luminance curve is determined, it is further determined whether the color coordinates corresponding to the second low-level power supply voltage meet the preset range. If the color coordinates meet the preset range, it means that the debugging is successful. If the color coordinates corresponding to the second low-level power supply voltage do not meet the preset range, it means that the debugging is unsuccessful, and the second low-level power supply voltage is not successfully debugged in the bound gray scale interval.

[0061] In an embodiment of the present application, the preset range is a standard range set by a person. The preset range of the color coordinates is ±0.02 based on the original color coordinates. In other embodiments, it can also be ±0.01 based on the original color coordinates. In an embodiment of the present application, if the original color coordinates are 0.315, the preset range of the color coordinates is between 0.305 and 0.325. When the color coordinates of the center point of the display panel corresponding to the maximum debugging voltage are 0.42, 0.42 is not in the preset range of 0.305-0.325, which means that the color coordinates of the center point of the display panel corresponding to the second low-level power supply voltage do not meet the preset range, and the debugging is unsuccessful. If the color coordinates of the center point of the display panel corresponding to the maximum debugging voltage are 0.32, 0.32 is in the preset range of 0.305-0.325, which means that the debugging is successful.

[0062] In an embodiment of the present application, the above steps are repeated to determine the second low-level power supply voltage corresponding to all bound gray scale intervals.

[0063] Based on the second low-level power supply voltage and according to the gamma curve, the voltage value corresponding to all bound gray scale intervals is obtained as the common ground terminal voltage.

[0064] In an embodiment of the present application, based on the second low-level power supply voltage corresponding to all bound gray scale intervals, gamma tuning is performed to obtain the voltage value corresponding to all bound gray scale intervals, that is, the voltage value of all bound gray scale intervals is obtained as the common ground terminal voltage.

[0065] S430: burning the common ground terminal voltage of each bound gray scale interval.

[0066] In an embodiment of the present application, the common ground terminal voltage of all bound gray scale intervals is dynamically burned, that is, the values of the common ground terminal voltages of multiple bound gray scale intervals are burned, and the values of the common ground terminal voltages are stored in a register.

[0067] An embodiment of the present application also includes a second technical solution, which is as follows: Figure 5As shown in the figure, a display panel burning device includes a memory 10 and a processor 20, the memory 10 stores a program, and the program, when read and executed by the processor 20, implements the display panel burning method described above.

[0068] The processor 20 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor 20 can be a microprocessor or any conventional processor 20, etc. The processor 20 is the control center of the face matching device, and connects various device parts of the entire shooting device through various interfaces and lines.

[0069] The memory 10 can be used to store computer programs and / or modules, and the processor 20 realizes various functions of the face matching device by running or executing the computer programs and / or modules stored in the memory 10, and calling the data stored in the memory 10. The memory 10 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function, etc.; and the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory 10 can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0070] The embodiments of the present application also include a third technical solution, as shown in the figure, Figure 6 As shown in the figure, a computer storage medium 30 stores a computer program 31, and the computer program 31, when executed by a processor, can implement the display panel burning method described above.

[0071] Based on the understanding, the application implements all or part of the processes in the above-mentioned embodiment methods, and can also be completed by instructing the relevant hardware through the computer program 31. The computer program 31 can be stored in a computer readable storage medium. When the computer program 31 is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program 31 includes computer program 31 code, which can be in the form of source code, object code, an executable file, or some intermediate form, etc. The computer readable medium can include any entity or device capable of carrying the computer program 31 code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content included in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0072] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A display panel burning method, characterized in that, The method comprises the following steps: adjusting the source voltage to match the source voltage of the bound gray scale interval, wherein the source voltage comprises a driving power supply voltage and a common ground voltage; burning in the matched source voltage of the bound gray scale interval; the step of adjusting the source voltage to match the source voltage of the bound gray scale interval comprises: adjusting the high-level power supply voltage to match the highest bound gray scale interval, and determining the high-level power supply voltage as the driving power supply voltage; wherein the step of adjusting the high-level power supply voltage to match the highest bound gray scale interval and determining the high-level power supply voltage as the driving power supply voltage comprises: obtaining the voltage value corresponding to the highest bound gray scale interval from the gamma curve as the driving power supply voltage; adjusting the low-level power supply voltage to match the low-level power supply voltage of each bound gray scale interval, and determining the low-level power supply voltage as the common ground voltage of the bound gray scale interval; wherein the step of adjusting the low-level power supply voltage to match the low-level power supply voltage of each bound gray scale interval and determining the low-level power supply voltage as the common ground voltage comprises: obtaining a first low-level power supply voltage corresponding to a gray scale in the bound gray scale interval; debugging a second low-level power supply voltage as the common ground voltage based on the first low-level power supply voltage, so that the brightness of the source voltage driving the pixel matches the brightness of the bound gray scale interval, wherein the second low-level power supply voltage is greater than the first low-level power supply voltage.

2. The display panel burning method of claim 1, wherein the step of burning in the matched source voltage of the bound gray scale interval comprises: burning in the driving power supply voltage.

3. The display panel burning method of claim 1, wherein the step of burning in the matched source voltage of the bound gray scale interval comprises: burning in the common ground voltage of each bound gray scale interval.

4. The display panel burning method of claim 3, wherein the step of debugging the second low-level power supply voltage as the common ground voltage based on the first low-level power supply voltage comprises: based on the first low-level power supply voltage, gradually increasing a debugging value as a debugging voltage, testing the brightness of the display panel, and determining a maximum debugging voltage that matches the brightness of the bound gray scale interval as the second low-level power supply voltage.

5. The display panel burning method of claim 4, wherein the step of gradually increasing the debugging value as the debugging voltage based on the first low-level power supply voltage, testing the brightness of the display panel, and determining the maximum debugging voltage that matches the brightness of the bound gray scale interval as the second low-level power supply voltage comprises: based on the first low-level power supply voltage, gradually increasing the debugging value as the debugging voltage, testing the brightness and color coordinates of the display panel; based on the brightness curve of the adjacent debugging voltage, determining whether the slope of the brightness curve changes abruptly, and determining the maximum debugging voltage that does not change abruptly as the second low-level power supply voltage.

6. The display panel burning method of claim 5, wherein After judging the slope of the brightness curve of the adjacent debugging voltage, judging whether the slope of the brightness curve is mutated, and determining the maximum debugging voltage without mutation as the second low-level power supply voltage, the method further comprises: determining that the color coordinates of the second low-level power supply voltage meet a preset range; obtaining voltage values corresponding to all bound gray scale intervals based on the second low-level power supply voltage and according to a gamma curve as the common ground terminal voltage.

7. A display panel burning device, characterized by, The display panel burning method comprises a memory and a processor, the memory stores a program, and the program is read and executed by the processor to realize the display panel burning method according to any one of claims 1-6.

8. A computer storage medium, characterized in that The computer storage medium stores a computer program, and the computer program can realize the display panel burning method according to any one of claims 1-6 when executed by a processor.

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