CN110634444B - Compensation method of display panel - Google Patents
Compensation method of display panel Download PDFInfo
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- CN110634444B CN110634444B CN201910905822.7A CN201910905822A CN110634444B CN 110634444 B CN110634444 B CN 110634444B CN 201910905822 A CN201910905822 A CN 201910905822A CN 110634444 B CN110634444 B CN 110634444B
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Abstract
The embodiment of the invention discloses a compensation method of a display panel. The method comprises the following steps: respectively acquiring first gray scale brightness curves of monochromatic organic light emitting devices with at least three different light emitting colors, wherein the light emitting colors of the monochromatic organic light emitting devices with the at least three different light emitting colors correspond to the light emitting colors of the light emitting units with the at least three different light emitting colors in the display panel one to one; performing a reliability experiment on the monochromatic organic light emitting device, and acquiring a second gray scale brightness curve after the reliability experiment; comparing the first gray scale brightness curve with the second gray scale brightness curve to determine brightness change of each monochromatic organic light-emitting device, and determining a parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change; and compensating the display panel according to the parameter adjusting value. The embodiment of the invention shortens the parameter adjustment period of the display panel, thereby shortening the color cast compensation period of the display panel.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to a compensation method of a display panel.
Background
With the development of display technology, people have higher and higher requirements for the display performance of display panels. The existing display panel has color cast before and after the reliability test, so that the improvement of the color cast of the display panel becomes an urgent problem to be solved in the display panel industry.
Disclosure of Invention
The invention provides a compensation method of a display panel, which is used for shortening the parameter adjustment period of the display panel so as to shorten the color cast compensation period of the display panel.
The embodiment of the invention provides a compensation method of a display panel, wherein the display panel comprises at least three luminous units with different luminous colors, and the method comprises the following steps:
respectively acquiring first gray scale brightness curves of monochromatic organic light emitting devices with at least three different light emitting colors, wherein the light emitting colors of the monochromatic organic light emitting devices with the at least three different light emitting colors correspond to the light emitting colors of the light emitting units with the at least three different light emitting colors in the display panel one to one;
performing a reliability experiment on the monochromatic organic light emitting device, and acquiring a second gray scale brightness curve after the reliability experiment;
comparing the first gray scale brightness curve with the second gray scale brightness curve to determine brightness change of each monochromatic organic light-emitting device, and determining a parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change;
and compensating the display panel according to the parameter adjusting value.
Optionally, before compensating the display panel according to the parameter adjustment value, the method further includes:
manufacturing a compensated monochromatic organic light emitting device according to the parameter adjustment value;
acquiring a third gray scale brightness curve of each compensated monochromatic organic light emitting device;
performing a reliability experiment on each compensated monochromatic organic light emitting device, and acquiring a fourth gray scale brightness curve after the reliability experiment;
and verifying the parameter adjustment value according to the third gray scale brightness curve and the fourth gray scale brightness curve.
Optionally, the monochromatic organic light emitting device includes a first electrode, a first functional layer, an organic light emitting layer, a second functional layer, and a second electrode, which are stacked, and the parameter adjustment value includes at least one of a doping concentration of the organic light emitting layer, a thickness of the organic light emitting layer, and a carrier mobility of the first functional layer and the second functional layer.
Optionally, the first functional layer includes a hole injection layer and a hole transport layer; the second functional layer includes an electron injection layer and an electron transport layer.
Optionally, determining a parameter adjustment value of at least one of the monochrome organic light emitting devices according to the luminance variation includes:
at least two pre-adjustment values of the same parameter are determined from the brightness variation.
Optionally, comparing the first gray-scale luminance curve with the second gray-scale luminance curve to determine luminance variation of each monochrome organic light emitting device, and determining a parameter adjustment value of at least one monochrome organic light emitting device according to the luminance variation, includes:
and when the gray-scale value is smaller than a set threshold value, comparing the first gray-scale brightness curve with the second gray-scale brightness curve to determine the brightness change of each monochromatic organic light-emitting device, and determining the parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change.
Optionally, the reliability test includes at least one of a high temperature aging test and an electrical aging test.
Optionally, the single color organic light emitting device includes a red organic light emitting device, a green organic light emitting device, and a blue organic light emitting device.
Optionally, obtaining a first gray scale luminance curve of the monochromatic organic light emitting device with at least three different light emitting colors includes:
acquiring a current brightness curve of a monochromatic organic light-emitting device;
and determining a first gray scale brightness curve of the monochromatic organic light-emitting device according to the current brightness curve and the white balance brightness ratio.
Optionally, each of the single color organic light emitting devices includes a plurality of sub light emitting devices.
According to the embodiment of the invention, the reliability experiment is carried out on the monochrome organic light emitting devices, the first gray scale brightness curve and the second gray scale brightness curve before and after the reliability experiment are respectively obtained, the brightness change of each monochrome organic light emitting device is determined according to the first gray scale brightness curve and the second gray scale brightness curve, and the parameter adjusting value of at least one monochrome organic light emitting device is determined according to the brightness change, so that the display panel is compensated.
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FIG. 1 is a flowchart illustrating a compensation method for a display panel according to an embodiment of the present invention;
fig. 2 is a schematic view of a monochromatic organic light emitting device provided by an embodiment of the present invention;
fig. 3 is a current efficiency curve of a red organic light emitting device before and after a reliability experiment;
fig. 4 is a current efficiency curve of the blue organic light emitting device before and after the reliability experiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the prior art, a reliability experiment is usually performed after the display panel is manufactured, the display performance of the display panel is tested, and the manufacturing parameters of the display panel are adjusted according to the display performance.
The present embodiment provides a compensation method for a display panel, the display panel includes at least three light emitting units with different light emitting colors, fig. 1 is a flowchart of the compensation method for a display panel according to the present embodiment, and referring to fig. 1, the method includes:
The monochromatic organic light emitting device is an organic light emitting diode device and comprises an anode, a cathode and a light emitting function layer arranged between the anode and the cathode. The single color organic light emitting devices of the at least three different light emitting colors may include a red organic light emitting device, a green organic light emitting device, a blue organic light emitting device, and the like, and a specific light emitting color of each single color organic light emitting device may be determined according to a light emitting color of a light emitting unit in the display panel.
Optionally, the obtaining a first gray-scale luminance curve of the monochromatic organic light emitting device with at least three different light emitting colors includes:
the method comprises the steps of obtaining a current brightness curve of a monochromatic organic light emitting device, and determining a first gray scale brightness curve of the monochromatic organic light emitting device according to the current brightness curve and a white balance brightness ratio.
Specifically, the white balance luminance ratio is determined according to the white picture chromaticity requirement of the display panel. An external driving device can be used to input a certain driving signal to the monochrome organic light emitting device to obtain an IVL (current-voltage-luminance) curve of each monochrome device. The displayable brightness range of each monochromatic device can be known according to the current brightness curve, and the brightness of each monochromatic light under each gray scale can be obtained by combining the white balance brightness ratio with the displayable brightness range of the monochromatic device, so that the relationship between the gray scale and the brightness of each monochromatic device, namely the first gray scale brightness curve, is obtained.
And 120, performing a reliability experiment on the monochromatic organic light emitting device, and acquiring a second gray scale brightness curve after the reliability experiment.
The reliability test includes at least one of a high-temperature aging test and an electrical aging test. The high-temperature aging experiment comprises the step of placing the single-color organic light-emitting device in an environment with a first set temperature in an on state for a first set time, or placing the single-color organic light-emitting device in an environment with a second set temperature in an off state for a second set time. The first set temperature, the first set time, the second set temperature and the second set time may be determined according to the temperature and time of the high-temperature aging test of the display panel, and for example, the first set temperature may be 80 degrees, and the first set time may be 120 hours, 240 hours, and the like. The electrical aging test lights the monochrome display device for a third set time under a set large current, and the set large current and the third set time can be determined according to the current and the time of the electrical aging test of the display panel.
In addition, the step of obtaining the second gray-scale luminance curve is similar to the step of obtaining the first gray-scale luminance curve, and is not repeated herein.
And step 130, comparing the first gray scale brightness curve with the second gray scale brightness curve to determine the brightness change of each monochromatic organic light-emitting device, and determining a parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change.
And determining a corresponding parameter adjusting value according to the brightness change degree, wherein the larger the brightness change is, the more serious the color cast degree after the reliability experiment is. The parameter adjustment value may include an adjustment value of one parameter or may include adjustment values of a plurality of parameters, and this embodiment is not particularly limited.
And step 140, compensating the display panel according to the parameter adjustment value.
In the embodiment, the reliability experiment is performed on the monochrome organic light emitting device, the first gray scale brightness curve and the second gray scale brightness curve before and after the reliability experiment are respectively obtained, the brightness change of each monochrome organic light emitting device is determined according to the first gray scale brightness curve and the second gray scale brightness curve, and the parameter adjustment value of at least one monochrome organic light emitting device is determined according to the brightness change, so that the display panel is compensated.
Optionally, before compensating the display panel according to the parameter adjustment value, the method further includes:
manufacturing the compensated monochromatic organic light emitting device according to the parameter adjustment value;
acquiring a third gray scale brightness curve of each compensated monochromatic organic light emitting device;
performing a reliability experiment on each compensated monochromatic organic light emitting device, and acquiring a fourth gray scale brightness curve after the reliability experiment;
and verifying the parameter adjustment value according to the third gray scale brightness curve and the fourth gray scale brightness curve.
Specifically, the manufacturing period of the monochrome organic light emitting device is short, the parameter adjusting value is verified by manufacturing the compensated monochrome organic light emitting device, the verification period is short, the problem that the color cast still exists in the display panel manufactured according to the parameter adjusting value due to the fact that the parameter adjusting value has deviation can be effectively avoided, and the color cast compensation period of the display panel is further shortened.
In addition, if a larger brightness deviation still exists after the reliability experiment of the compensated monochrome organic light emitting device, namely, a color deviation still exists, a new parameter adjustment value can be further determined according to a third gray scale brightness curve and a fourth gray scale brightness curve, and the new parameter adjustment value is verified, namely, a new compensated monochrome organic light emitting device is manufactured according to the new parameter adjustment value, the third gray scale brightness curve and the fourth gray scale brightness curve before and after the reliability experiment of the new compensated monochrome organic light emitting device are continuously obtained until the chromaticity of each gray scale after the compensated fourth gray scale brightness curve is matched with the second gray scale brightness curve after the reliability experiment of other monochrome organic light emitting devices, and the difference between the chromaticity of each gray scale after being matched with the chromaticity of each gray scale before and after the reliability experiment is less than or equal to the minimum recognizable chromaticity difference of human eyes, for example, the minimum visible difference of white light under the same gray scale before and after the reliability experiment is less than or equal to 0.01, thereby better improving the color cast.
Fig. 2 is a schematic diagram of a monochromatic organic light emitting device according to an embodiment of the present invention, and referring to fig. 2, the monochromatic organic light emitting device 20 includes a first electrode 21, a first functional layer 22, an organic light emitting layer 23, a second functional layer 24, and a second electrode 25, which are stacked, and the parameter adjustment value includes at least one of a doping concentration of the organic light emitting layer 23, a thickness of the organic light emitting layer 23, and a carrier mobility of the first functional layer 22 and the second functional layer 24.
Wherein the parameter adjustment value may comprise an adjustment value of one or more of the above parameters. Illustratively, when the blue light luminance of the blue organic light emitting device is reduced and the red light luminance of the red organic light emitting device is increased after the reliability experiment, which leads to the red shift of the display panel, it is shown that the blue light emitting efficiency is reduced and the red light emitting efficiency is higher than that of the blue light after the reliability experiment, the doping concentration of the organic light emitting layer 23 of the red organic light emitting device can be properly adjusted, and the carrier mobility of the first functional layer 22 and the second functional layer 24 of the red organic light emitting device can also be adjusted, so as to reduce the light emitting efficiency of the red organic light emitting device and improve the red shift.
Optionally, the first functional layer 22 includes a hole injection layer and a hole transport layer; the second functional layer 24 includes an electron injection layer and an electron transport layer.
The first electrode 21 is an anode, the second electrode 25 is a cathode, the electron injection layer is disposed on a side of the electron transport layer adjacent to the second electrode 25, and the hole injection layer is disposed on a side of the hole transport layer adjacent to the first electrode 21.
Optionally, determining a parameter adjustment value of at least one of the monochrome organic light emitting devices according to the luminance variation includes: at least two pre-adjustment values of the same parameter are determined from the brightness variation.
Specifically, a plurality of preset values of the same parameter can be determined according to the brightness variation, compensated monochrome organic light emitting display devices corresponding to the preset values are respectively manufactured, the preset values are respectively verified, and the improvement rule of the parameter variation on the color cast is determined, so that the optimal parameter adjustment value is determined.
By determining at least two preset values of the same parameter, the improvement rule of the parameter change on the color cast can be better determined, so that the optimal parameter adjustment value is determined, and the color cast of the display panel is better improved.
Illustratively, when the color temperature of the organic light emitting layer of the red organic light emitting device is relatively red after the reliability experiment, the doping concentration of the organic light emitting layer of the red organic light emitting device can be properly adjusted, if the doping concentration adopted by the existing red organic light emitting device is 2.5%, three pre-adjustment values of the doping concentration of 1%, 3% and 5% can be set, the compensated monochromatic organic light emitting devices are respectively manufactured, each pre-adjustment value is verified, and the optimal doping concentration is determined according to the brightness change rule.
Optionally, comparing the first gray scale luminance curve with the second gray scale luminance curve to determine luminance variation of each monochrome organic light emitting device, and determining a parameter adjustment value of at least one monochrome organic light emitting device according to the luminance variation, includes:
and when the gray-scale value is smaller than the set threshold value, comparing the first gray-scale brightness curve with the second gray-scale brightness curve to determine the brightness change of each monochromatic organic light-emitting device, and determining the parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change.
Specifically, the inventor finds that a large color shift is usually generated before and after a display panel reliability experiment at low luminance, and determines the luminance change of each monochrome organic light emitting device by comparing a first gray scale luminance curve and a second gray scale luminance curve when a gray scale value is set to be smaller than a set threshold value, and determines a parameter adjustment value of at least one monochrome organic light emitting device according to the luminance change and a white balance luminance ratio.
The threshold may be determined according to the initial brightness of the display panel with color cast, and this embodiment is not limited in any way.
Alternatively, with continued reference to fig. 2, each of the single color organic light emitting devices 20 includes a plurality of sub-light emitting devices 201.
Specifically, a pixel defining layer 26 may be disposed on the surface of the first electrode 21 adjacent to the first functional layer 22, and a plurality of openings may be disposed on the pixel defining layer 26, where each opening corresponds to one sub-light emitting device 201. The opening size of the pixel defining layer 26 may be set to be the same as the opening size of the pixel defining layer corresponding to the light emitting unit of the corresponding color in the display panel to ensure that the plurality of sub light emitting devices 201 have the same opening ratio as the corresponding light emitting unit.
By setting each monochrome organic light emitting device 20 to include a plurality of sub-light emitting devices 201, the luminance of the light emitting unit in the display panel can be better simulated, so that the measured gray scale luminance curve better conforms to the monochrome luminance curve of the display panel, the determined parameter adjustment value better conforms to the color cast level of the display panel, and the color cast of the display panel is better improved.
The present embodiment provides a specific example of a compensation method for a display panel based on the above embodiments, where the method includes:
the method comprises the steps of respectively obtaining brightness efficiency curves of a red organic light emitting device, a green organic light emitting device and a blue organic light emitting device, carrying out reliability experiments on the red organic light emitting device, the green organic light emitting device and the blue organic light emitting device, and obtaining the brightness efficiency curves after the reliability experiments.
Specifically, the brightness of each gray scale can be found by using the red, green and blue brightness required under white balance and the Gamma curve, so that gray scale brightness curves before and after the reliability experiment are obtained.
Fig. 3 is a current efficiency curve of a red organic light emitting device before and after a reliability experiment, and fig. 4 is a current efficiency curve of a blue organic light emitting device before and after the reliability experiment, and referring to fig. 3 to 4, 0 hour represents that a high temperature aging experiment is not performed, and 240 hours represents that high temperature aging is performed for 240 hours. After the reliability experiment, the luminous efficiency of the blue organic light-emitting device is reduced, the luminous efficiency of red light is improved, and after the reliability experiment under the same driving current, the brightness of red light is improved, the brightness of blue light is reduced, and the display panel is reddish.
Because the red organic light-emitting device is reddish after the reliability experiment, the doping concentration of the organic light-emitting layer of the red organic light-emitting device can be properly adjusted, and three pre-adjustment values of the doping concentration of 1%, 3% and 5% can be set. And manufacturing the compensated red organic light emitting devices according to the preset adjustment value, acquiring a brightness efficiency curve of the compensated red organic light emitting devices, performing a reliability experiment on each compensated red organic light emitting device, and acquiring the brightness efficiency curve after the reliability experiment.
Table 1 shows current efficiency data of the red organic light emitting device for different doping concentrations of the organic light emitting layer after the reliability experiment, referring to table 1, the light emitting efficiency of the red organic light emitting device can be adjusted by changing the doping concentration of the organic light emitting layer, and the light emitting efficiency is improved as the doping concentration is reduced. By adjusting the doping concentration of the red organic light-emitting device, the red color deviation of the low gray scale after the reliability experiment can be effectively improved.
TABLE 1
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A compensation method for a display panel, wherein the display panel comprises light emitting units of at least three different light emitting colors, the method comprising:
respectively acquiring first gray scale brightness curves of monochromatic organic light emitting devices with at least three different light emitting colors, wherein the light emitting colors of the monochromatic organic light emitting devices with the at least three different light emitting colors correspond to the light emitting colors of the light emitting units with the at least three different light emitting colors in the display panel one to one;
performing a reliability experiment on the monochromatic organic light emitting device, and acquiring a second gray scale brightness curve after the reliability experiment;
comparing the first gray scale brightness curve with the second gray scale brightness curve to determine brightness change of each monochromatic organic light-emitting device, and determining a parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change;
compensating the display panel according to the parameter adjusting value;
before compensating the display panel according to the parameter adjustment value, the method further comprises the following steps:
manufacturing a compensated monochromatic organic light emitting device according to the parameter adjustment value;
acquiring a third gray scale brightness curve of each compensated monochromatic organic light emitting device;
performing a reliability experiment on each compensated monochromatic organic light emitting device, and acquiring a fourth gray scale brightness curve after the reliability experiment;
and verifying the parameter adjustment value according to the third gray scale brightness curve and the fourth gray scale brightness curve.
2. The method of claim 1, wherein:
the monochromatic organic light emitting device comprises a first electrode, a first functional layer, an organic light emitting layer, a second functional layer and a second electrode which are arranged in a stacked mode, and the parameter adjusting value comprises at least one of the doping concentration of the organic light emitting layer, the thickness of the organic light emitting layer and the carrier mobility of the first functional layer and the second functional layer.
3. The method of claim 2, wherein:
the first functional layer comprises a hole injection layer and a hole transport layer; the second functional layer includes an electron injection layer and an electron transport layer.
4. The method of claim 1, wherein determining the parameter adjustment value for at least one of the single color organic light emitting devices based on a change in brightness comprises:
at least two pre-adjustment values of the same parameter are determined from the brightness variation.
5. The method of claim 1, wherein comparing the first gray scale luminance profile to the second gray scale luminance profile determines a luminance variation of each of the monochrome organic light emitting devices, and determining a parameter adjustment value for at least one of the monochrome organic light emitting devices based on the luminance variation comprises:
and when the gray-scale value is smaller than a set threshold value, comparing the first gray-scale brightness curve with the second gray-scale brightness curve to determine the brightness change of each monochromatic organic light-emitting device, and determining the parameter adjustment value of at least one monochromatic organic light-emitting device according to the brightness change.
6. The method of claim 1, wherein:
the reliability test includes at least one of a high temperature aging test and an electrical aging test.
7. The method of claim 1, wherein:
the single color organic light emitting device includes a red organic light emitting device, a green organic light emitting device, and a blue organic light emitting device.
8. The method of claim 1, wherein obtaining a first gray scale luminance profile for a monochrome organic light emitting device of at least three different emission colors comprises:
acquiring a current brightness curve of a monochromatic organic light-emitting device;
and determining a first gray scale brightness curve of the monochromatic organic light-emitting device according to the current brightness curve and the white balance brightness ratio.
9. The method of claim 1, wherein:
each of the single color organic light emitting devices includes a plurality of sub-light emitting devices.
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| CN113328044B (en) * | 2021-05-25 | 2023-04-18 | 武汉华星光电技术有限公司 | Display panel, preparation method thereof and display device |
| CN116798327A (en) * | 2021-10-26 | 2023-09-22 | 深圳市华星光电半导体显示技术有限公司 | Aging test method for display panel |
| CN114612437B (en) * | 2022-03-15 | 2024-04-09 | 深圳市科泰兴业科技有限公司 | AMOLED-based display image quality improvement method |
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| CN107038995A (en) * | 2017-04-19 | 2017-08-11 | 京东方科技集团股份有限公司 | A kind of white point color-complementing method, device and the display device of WOLED devices |
| CN107301836A (en) * | 2017-06-26 | 2017-10-27 | 深圳市洲明科技股份有限公司 | A kind of bearing calibration of LED display and means for correcting |
| CN107274834A (en) * | 2017-08-08 | 2017-10-20 | 深圳市华星光电半导体显示技术有限公司 | A kind of AMOLED display panels luminance compensation method and device |
| CN108877657A (en) * | 2018-07-25 | 2018-11-23 | 京东方科技集团股份有限公司 | Luminance compensation method and device, display device |
| CN108877727A (en) * | 2018-09-07 | 2018-11-23 | 深圳市华星光电技术有限公司 | The ameliorative way and liquid crystal display of LCD picture crosstalk |
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