CN109215596B - Method and device for automatically adjusting overdrive voltage and display panel - Google Patents
Method and device for automatically adjusting overdrive voltage and display panel Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention provides a method and a device for automatically adjusting overdrive voltage, wherein the method comprises the following steps: carrying out white balance adjustment on the display panel; lightening a pure color picture corresponding to the red pixel point under different gray scales; calculating red smear distances corresponding to the red pixel points under different gray scales, and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points; lightening a pure color picture corresponding to the green pixel point under different gray scales; calculating green smear distances corresponding to green pixel points under different gray scales, and selecting overdrive voltage contained in gray scale signals corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points; lightening pure color pictures corresponding to blue pixel points under different gray scales; and calculating blue smear distances corresponding to the blue pixel points under different gray scales, and selecting overdrive voltage contained in gray scale signals corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
Description
Technical Field
The invention relates to the field of electronic display, in particular to a method and a device for automatically adjusting overdrive voltage and a display panel.
Background
Thin film transistor liquid crystal displays (TFT-LCDs) have many advantages over Cathode Ray Tube (CRT) displays, including small size, high resolution, low power consumption, light weight, and no radiation, and thus are widely used in televisions, computers, and other mobile communication fields. However, when the LCD displays a fast moving image, the LCD may have an edge blur or smear phenomenon due to a long response time of the liquid crystal, and the screen is not clear, thereby degrading user experience.
The Over Driving (OD) technique is a new technique capable of effectively increasing the response speed of the liquid crystal gray scale, and applies a voltage exceeding the expected voltage across the liquid crystal capacitor, and accelerates the rotation process of the liquid crystal molecules by using a strong electric field, thereby reducing the response time of the liquid crystal.
Since the gray scale color of the LCD changes with the change of the driving voltage, white balance adjustment is required. However, in the white balance condition, if the same voltage is used, the color smearing problem may occur due to different degrees of smearing of different pixel colors because the voltages corresponding to different pixel colors are different. Therefore, each pixel point needs to be manually debugged one by one to determine the overdrive voltage, and the process is time-consuming, high in cost and low in efficiency.
Disclosure of Invention
The invention provides a method and a device for automatically adjusting overdrive voltage and a display panel, and aims to solve the technical problem that the overdrive voltage cannot be automatically adjusted in the prior art.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
a method of automatically adjusting an overdrive voltage, comprising the steps of:
carrying out white balance adjustment on the display panel;
lightening a pure color picture corresponding to the red pixel point under different gray scales;
calculating the red smear distance corresponding to the red pixel points under different gray scales;
comparing the red smear distances corresponding to the red pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
lightening a pure color picture corresponding to the green pixel point under different gray scales;
calculating green smear distances corresponding to green pixel points under different gray scales;
comparing green smear distances corresponding to green pixel points under different gray scales, and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
lightening pure color pictures corresponding to blue pixel points under different gray scales;
calculating blue smear distances corresponding to blue pixel points under different gray scales;
and comparing the blue smear distances corresponding to the blue pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
According to an embodiment of the present invention, the method for calculating the red smear distance corresponding to the red pixel under different gray scales comprises:
inputting a moving image, wherein the gray scale of the moving image is smaller than that of the current display panel;
shooting a picture of the display panel at any moment in the image moving process;
analyzing and obtaining gray scale values of different areas on the display panel, wherein the gray scale value of an area through which the moving image does not pass is equal to the gray scale value of an area through which the moving image passes, the gray scale value is a first gray scale, the gray scale of the area where the moving image is located is a second gray scale, the second gray scale is smaller than the first gray scale, the gray scale of the smear area is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale;
the length of the smear region in the image movement direction, which is the smear distance, is measured.
According to an embodiment of the present invention, the method for calculating the green smear distance corresponding to the green pixel points under different gray scales and the method for calculating the blue smear distance corresponding to the blue pixel points under different gray scales are the same as the method for calculating the red smear distance corresponding to the red pixel points under different gray scales.
According to a specific embodiment of the present invention, the input moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
According to a specific embodiment of the present invention, before performing the white balance adjustment, the method further includes:
and adjusting the gamma curve of the display panel.
Correspondingly, the invention also provides a device for automatically adjusting the overdrive voltage, which comprises:
a first adjusting unit for performing white balance adjustment on the display panel;
the first control unit is used for lightening pure color pictures corresponding to the red pixel points under different gray scales;
the first calculating unit is used for calculating the red smear distance corresponding to the red pixel points under different gray scales;
the first comparison unit is used for comparing the red smear distances corresponding to the red pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
the second control unit is used for lightening a pure color picture corresponding to the green pixel point under different gray scales;
the second calculation unit is used for calculating green smear distances corresponding to green pixel points under different gray scales;
the second comparison unit is used for comparing green smear distances corresponding to green pixel points under different gray scales and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
the third control unit is used for lightening the pure color picture corresponding to the blue pixel point under different gray scales;
the third calculating unit is used for calculating blue smear distances corresponding to the blue pixel points under different gray scales;
and the third comparison unit is used for comparing the blue smear distances corresponding to the blue pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
According to a specific embodiment provided by the present invention, the first calculating unit includes:
the input module is used for inputting a moving image, and the gray scale of the moving image is smaller than that of the current display panel;
the shooting module is used for shooting a display panel photo at any moment in the image moving process;
the analysis module is used for analyzing and acquiring gray scale values of different areas on the display panel, wherein the gray scale value of an area through which the moving image does not pass is equal to the gray scale value of an area through which the moving image passes, the gray scale of the area is a first gray scale, the gray scale of the area where the moving image is located is a second gray scale, the second gray scale is smaller than the first gray scale, the gray scale of the smear area is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale;
and the measuring module is used for measuring the length of the smear region along the image moving direction, and the length is the smear distance.
According to a specific embodiment of the present invention, the second calculating unit and the third calculating unit have the same structure as the first calculating unit.
According to a specific embodiment of the present invention, the input moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
According to an embodiment of the present invention, the apparatus for automatically adjusting an overdrive voltage further comprises:
and the second adjusting unit is used for adjusting the gamma curve of the display panel.
Correspondingly, the invention also provides a display panel, and the display panel comprises the device for automatically adjusting the overdrive voltage.
According to the invention, the white balance adjustment is firstly carried out on the display panel, then the pure color pictures corresponding to different pixel points under different gray scales are lightened, the red smear distances corresponding to different pixel points under different gray scales are calculated, and the overdrive voltage contained in the gray scale signal corresponding to the minimum smear distance is selected as the overdrive voltage of different pixel points, so that the manual adjustment of the overdrive voltage is realized, the cost is effectively saved, and the efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method of automatically adjusting an overdrive voltage in one embodiment of the invention;
FIG. 2 is a graph of the relationship between the driving signal and the brightness of the display panel in the prior art;
FIG. 3 is a schematic diagram of the driving signals in FIG. 2 generating smear on the display panel;
FIG. 4 is a graph of the relationship between the overdrive signal and the brightness of the display panel in the prior art;
FIG. 5 is an illustration of a method of calculating smear distance in an embodiment of the invention.
Detailed Description
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations as a sequential process, many of the operations can be performed in parallel, concurrently, or simultaneously. In addition, the order of the operations may be re-arranged. It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
The methods discussed below, some of which are illustrated by flow diagrams, may be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to perform the necessary tasks may be stored in a machine or computer readable medium such as a storage medium. The processor(s) may perform the necessary tasks.
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be termed a second element, and, similarly, a second element may be termed a first element, without departing from the scope of example embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The liquid crystal response time is the reaction speed of each pixel point of the panel to the applied voltage, namely the pixel is switched from bright to dark or dark to bright from high level to low level or the applied voltage is switched from low level to high level, and the switching time is the time required by the liquid crystal unit to be influenced by the applied voltage, and the liquid crystal molecules are twisted and recovered. The shorter the response time of the liquid crystal is, the more smooth and fluent dynamic picture can be seen by the user, and the phenomenon of trailing and color-dragging afterimage and the like can not be seen. Referring to fig. 2, fig. 2 is a graph showing the relationship between the driving signal and the brightness of the display panel in the prior art, and it can be seen that, because the response time of the liquid crystal is long, the brightness is not saturated when the gate is turned off, which causes the dynamic image to generate the smear, as shown in fig. 3.
This phenomenon can be improved by applying an overdrive technique, which applies a voltage exceeding a desired voltage across the liquid crystal capacitor, and accelerates the rotation process of the liquid crystal molecules using a strong electric field, thereby reducing the liquid crystal response time. However, if the OD voltage is too large, the luminance is restored after exceeding the saturation region, and the response time is also increased, as shown in fig. 4, and thus the OD voltage needs to be adjusted. Since the gray scale color of the LCD changes with the change of the driving voltage, white balance adjustment is required. However, in the white balance condition, if the same voltage is used, the color smearing problem may occur due to different degrees of smearing of different pixel colors because the voltages corresponding to different pixel colors are different. Therefore, each pixel point needs to be manually debugged one by one to determine the overdrive voltage, and the process is time-consuming, high in cost and low in efficiency.
Referring to fig. 1, the present invention provides a method for automatically adjusting an overdrive voltage, which includes the following steps:
carrying out white balance adjustment on the display panel;
lightening a pure color picture corresponding to the red pixel point under different gray scales;
calculating the red smear distance corresponding to the red pixel points under different gray scales;
comparing the red smear distances corresponding to the red pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
lightening a pure color picture corresponding to the green pixel point under different gray scales;
calculating green smear distances corresponding to green pixel points under different gray scales;
comparing green smear distances corresponding to green pixel points under different gray scales, and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
lightening pure color pictures corresponding to blue pixel points under different gray scales;
calculating blue smear distances corresponding to blue pixel points under different gray scales;
and comparing the blue smear distances corresponding to the blue pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
It should be noted that the sequence of the above steps is only used for exemplifying the present invention, and the sequence of the operations may be rearranged in practice. For example, in other embodiments of the present invention, the minimum smear distance of the blue light may be calculated first, and then the minimum smear distances of the red light and the green light may be calculated sequentially. Or the minimum smear distance of the green light can be calculated first, and then the minimum smear distances of the blue light and the red light are calculated in sequence. The order of the colors is not to be construed as a limitation of the present invention.
Preferably, the method for calculating the red smear distance corresponding to the red pixel points under different gray scales comprises the following steps: inputting a moving image, wherein the gray scale of the moving image is smaller than that of the current display panel; shooting a picture of the display panel at any moment in the image moving process; analyzing and obtaining gray scale values of different areas on the display panel, wherein the gray scale value of an area through which the moving image does not pass is equal to the gray scale value of an area through which the moving image passes, the gray scale value is a first gray scale, the gray scale of the area where the moving image is located is a second gray scale, the second gray scale is smaller than the first gray scale, the gray scale of the smear area is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale; the length of the smear region in the image movement direction, which is the smear distance, is measured.
Preferably, the method for calculating the green smear distance corresponding to the green pixel points under different gray scales and the method for calculating the blue smear distance corresponding to the blue pixel points under different gray scales are the same as the method for calculating the red smear distance corresponding to the red pixel points under different gray scales.
Preferably, as shown in fig. 5, the input moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
Preferably, before the white balance adjustment, gamma curve adjustment is performed on the display panel.
According to the invention, the white balance adjustment is firstly carried out on the display panel, then the pure color pictures corresponding to different pixel points under different gray scales are lightened, the red smear distances corresponding to different pixel points under different gray scales are calculated, and the overdrive voltage contained in the gray scale signal corresponding to the minimum smear distance is selected as the overdrive voltage of different pixel points, so that the manual adjustment of the overdrive voltage is realized, the cost is effectively saved, and the efficiency is improved.
The present invention also provides a device for automatically adjusting overdrive voltage, comprising:
a first adjusting unit for performing white balance adjustment on the display panel;
the first control unit is used for lightening pure color pictures corresponding to the red pixel points under different gray scales;
the first calculating unit is used for calculating the red smear distance corresponding to the red pixel points under different gray scales;
the first comparison unit is used for comparing the red smear distances corresponding to the red pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
the second control unit is used for lightening a pure color picture corresponding to the green pixel point under different gray scales;
the second calculation unit is used for calculating green smear distances corresponding to green pixel points under different gray scales;
the second comparison unit is used for comparing green smear distances corresponding to green pixel points under different gray scales and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
the third control unit is used for lightening the pure color picture corresponding to the blue pixel point under different gray scales;
the third calculating unit is used for calculating blue smear distances corresponding to the blue pixel points under different gray scales;
and the third comparison unit is used for comparing the blue smear distances corresponding to the blue pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
Preferably, the first calculation unit includes:
the input module is used for inputting a moving image, and the gray scale of the moving image is smaller than that of the current display panel;
the shooting module is used for shooting a display panel photo at any moment in the image moving process;
the analysis module is used for analyzing and acquiring gray scale values of different areas on the display panel, wherein the gray scale value of an area through which the moving image does not pass is equal to the gray scale value of an area through which the moving image passes, the gray scale of the area is a first gray scale, the gray scale of the area where the moving image is located is a second gray scale, the second gray scale is smaller than the first gray scale, the gray scale of the smear area is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale;
and the measuring module is used for measuring the length of the smear region along the image moving direction, and the length is the smear distance.
Preferably, the second calculating unit and the third calculating unit have the same structure as the first calculating unit.
Preferably, the input moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
Preferably, the apparatus for automatically adjusting an overdrive voltage further includes a second adjusting unit for performing gamma curve adjustment on the display panel.
Correspondingly, the invention also provides a display panel, and the display panel comprises the device for automatically adjusting the overdrive voltage.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (9)
1. A method of automatically adjusting overdrive voltage, comprising the steps of:
carrying out white balance adjustment on the display panel;
lightening a pure color picture corresponding to the red pixel point under different gray scales;
inputting a moving image, shooting a picture of the display panel at any moment in the image moving process, and measuring the length of a smear region along the image moving direction, wherein the length is the red smear distance corresponding to the red pixel point;
comparing the red smear distances corresponding to the red pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
lightening a pure color picture corresponding to the green pixel point under different gray scales;
inputting a moving image, shooting a picture of the display panel at any moment in the moving image moving process, and measuring the length of a smear region along the moving image moving direction, wherein the length is a green smear distance corresponding to the green pixel point;
comparing green smear distances corresponding to the green pixel points under different gray scales, and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
lightening pure color pictures corresponding to blue pixel points under different gray scales;
inputting a moving image, shooting a picture of the display panel at any moment in the moving image moving process, and measuring the length of a smear region along the moving image moving direction, wherein the length is a blue smear distance corresponding to the blue pixel point;
and comparing the blue smear distances corresponding to the blue pixel points under different gray scales, and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
2. The method of automatically adjusting overdrive voltage according to claim 1,
the gray scale of the moving image is smaller than the gray scale of the current display panel;
analyzing and acquiring gray-scale values of different areas on the display panel, wherein the gray-scale value of the area which is not passed by the moving image is equal to the gray-scale value of the area which is passed by the moving image and is a first gray scale; the gray scale of the area where the moving image is located is a second gray scale, and the second gray scale is smaller than the first gray scale; the gray scale of the smear region is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale.
3. The method of claim 2, wherein the input moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
4. The method of automatically adjusting overdrive voltage according to claim 1, further comprising, before performing white balance adjustment:
and adjusting the gamma curve of the display panel.
5. An apparatus for automatically adjusting overdrive voltage, comprising:
a first adjusting unit for performing white balance adjustment on the display panel;
the first control unit is used for lightening pure color pictures corresponding to the red pixel points under different gray scales;
the first calculation unit is used for calculating the red smear distance corresponding to the red pixel points under different gray scales and comprises an input module used for inputting moving images, a shooting module used for shooting pictures of the display panel at any moment in the moving process of the moving images, and a measurement module used for measuring the length of a smear region along the moving direction of the moving images, wherein the length is the red smear distance corresponding to the red pixel points;
the first comparison unit is used for comparing the red smear distances corresponding to the red pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum red smear distance as the overdrive voltage of the red pixel points;
the second control unit is used for lightening a pure color picture corresponding to the green pixel point under different gray scales;
the second calculation unit is used for calculating green smear distances corresponding to the green pixel points under different gray scales, and comprises an input module used for inputting moving images, a shooting module used for shooting pictures of the display panel at any moment in the moving image moving process, and a measuring module used for measuring the length of a smear region along the moving image moving direction, wherein the length is the green smear distance corresponding to the green pixel points;
the second comparison unit is used for comparing green smear distances corresponding to the green pixel points under different gray scales and selecting overdrive voltage contained in a gray scale signal corresponding to the minimum green smear distance as the overdrive voltage of the green pixel points;
the third control unit is used for lightening the pure color picture corresponding to the blue pixel point under different gray scales;
the third calculation unit is used for calculating blue smear distances corresponding to the blue pixel points under different gray scales, and comprises an input module used for inputting moving images, a shooting module used for shooting pictures of the display panel at any moment in the moving process of the moving images, and a measuring module used for measuring the length of a smear region along the moving direction of the moving images, wherein the length is the blue smear distance corresponding to the blue pixel points;
and the third comparison unit is used for comparing the blue smear distances corresponding to the blue pixel points under different gray scales and selecting the overdrive voltage contained in the gray scale signal corresponding to the minimum blue smear distance as the overdrive voltage of the blue pixel points.
6. The apparatus for automatically adjusting overdrive voltage according to claim 5,
the gray scale of the moving image is smaller than the gray scale of the current display panel;
the first calculation unit further includes: the analysis module is used for analyzing and acquiring gray-scale values of different areas on the display panel, wherein the gray-scale value of the area through which the moving image does not pass is equal to the gray-scale value of the area through which the moving image passes, and the gray-scale value is a first gray scale; the gray scale of the area where the moving image is located is a second gray scale, and the second gray scale is smaller than the first gray scale; the gray scale of the smear region is a third gray scale, and the third gray scale is larger than the second gray scale and is not equal to the first gray scale.
7. The apparatus of claim 6, wherein the inputted moving image is a rectangle, and a moving direction of the rectangle is parallel to one side of the display panel.
8. The apparatus for automatically adjusting an overdrive voltage according to claim 5, further comprising, before the white balance adjustment is performed:
and the second adjusting unit is used for adjusting the gamma curve of the display panel.
9. A display panel comprising the apparatus for automatically adjusting an overdrive voltage according to claim 5.
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| CN201811187629.6A CN109215596B (en) | 2018-10-12 | 2018-10-12 | Method and device for automatically adjusting overdrive voltage and display panel |
| PCT/CN2019/070043 WO2020073545A1 (en) | 2018-10-12 | 2019-01-02 | Method and apparatus for automatically adjusting overdrive voltage, and display panel |
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| CN201811187629.6A CN109215596B (en) | 2018-10-12 | 2018-10-12 | Method and device for automatically adjusting overdrive voltage and display panel |
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| CN106652939B (en) * | 2016-12-20 | 2018-11-23 | 武汉华星光电技术有限公司 | A kind of driving method and driving device of display panel |
| CN107918217A (en) * | 2018-01-03 | 2018-04-17 | 京东方科技集团股份有限公司 | The test method and test device of response time |
| CN108574794B (en) * | 2018-03-30 | 2021-01-22 | 京东方科技集团股份有限公司 | Image processing method and device, display equipment and computer readable storage medium |
| CN108470540B (en) * | 2018-06-21 | 2020-05-15 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
-
2018
- 2018-10-12 CN CN201811187629.6A patent/CN109215596B/en active Active
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2019
- 2019-01-02 WO PCT/CN2019/070043 patent/WO2020073545A1/en active Application Filing
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| Publication number | Publication date |
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| WO2020073545A1 (en) | 2020-04-16 |
| CN109215596A (en) | 2019-01-15 |
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