CN113889010A - Display panel aging test method - Google Patents
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- 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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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Abstract
The invention provides a display panel aging test method, which is characterized in that the steps of judgment and calibration are added in the display panel aging test method, whether the screened abnormal gray scale is correct or not can be judged, and wrong experimental data can be corrected, so that the true gray scale with the most serious chromatic aberration can be found out, and the accuracy of an aging test can be further improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel aging test method.
Background
Before the liquid crystal display panel enters the consumer market, the aging test of the liquid crystal display panel is usually performed for many times to verify the stability of the liquid crystal display panel. The experimental method is generally as follows: and lighting the display panel for a long time, measuring display data after the display panel is lighted for the long time, comparing the display data with the display data during initial lighting, and judging whether the stability of the display panel is over-limit or not according to the fluctuation of the display data under different lighting time.
However, even if the same test method is adopted in each aging test, the test results are different, and the accuracy of the aging test is seriously influenced.
Disclosure of Invention
The invention aims to provide a display panel aging test method to solve the technical problem that the accuracy of the experimental result of the conventional display panel aging experiment is poor.
In order to achieve the above object, the present invention provides a display panel aging test method, which includes the following steps:
lighting a display panel and measuring display data of the display panel; acquiring a chromaticity difference value between the initial lighting and the long-time lighting of the display panel; screening abnormal gray scales according to the chrominance difference value; judging whether the screened abnormal gray scale is correct or not; and when the screened abnormal gray scale is incorrect, calibrating the abnormal gray scale.
Further, the step of determining whether the screened abnormal gray scale is correct includes the steps of:
setting a standard difference range; acquiring a first contrast of the display panel during initial lighting; acquiring a second contrast of the display panel after being lighted for a long time; comparing the first contrast and the second contrast.
And when the rising amplitude between the first contrast and the second contrast is in the standard difference range, judging that the screened abnormal gray scale is correct. And when the fluctuation between the first contrast and the second contrast exceeds the standard difference range, judging the screened abnormal gray scale error.
Further, the step of acquiring the first contrast of the display panel at the initial lighting comprises the steps of:
when the display panel is initially lightened, acquiring first bright-state brightness and first dark-state brightness of the display panel; and substituting the first bright-state brightness and the first dark-state brightness into a contrast formula to calculate the first contrast.
Further, the step of obtaining the second contrast of the display panel after being lighted for a long time comprises the following steps:
after the display panel is lightened for a long time, acquiring second bright-state brightness and second dark-state brightness of the display panel; and substituting the second bright-state brightness and the second dark-state brightness into a contrast formula to calculate the second contrast.
Further, the contrast formula is: contrast ratio bright state luminance/dark state luminance.
Further, the standard deviation ranges from-20% to 20%.
Further, the step of calibrating the abnormal gray scale includes the steps of:
acquiring a reference tristimulus value of the display panel and an abnormal tristimulus value needing to be corrected; substituting the reference tristimulus value and the abnormal tristimulus value into a correction formula to calculate correct chromaticity data; and obtaining the corrected correct abnormal gray scale through correct chrominance data.
Further, the step of obtaining the reference tristimulus value of the display panel and the abnormal tristimulus value of each gray scale comprises the following steps:
acquiring tristimulus values X, Y and Z of each gray scale when the display panel is initially lighted and after the display panel is lighted for a long time; acquiring a first contrast of the display panel during initial lighting; acquiring a second contrast of the display panel after being lighted for a long time; comparing the first contrast and the second contrast.
And regarding the contrast with larger value, taking the tristimulus value of the corresponding dark-state picture as the reference tristimulus value. And regarding the contrast with smaller numerical value, taking the tristimulus value of each corresponding gray scale as the abnormal tristimulus value.
Further, the steps of obtaining the tristimulus values X, Y and Z of each gray scale at the initial lighting time and after the long-time lighting time comprise the following steps:
acquiring the brightness Lv, the chromatic value x and the chromatic value y of each gray scale of the display panel during initial lighting and after long-time lighting; and respectively calculating the tristimulus values of the gray scales of the display panel during initial lighting and after long-time lighting through a tristimulus value calculation formula.
The tristimulus value calculation formula comprises:
X＝(Lv×x)/y；
Y＝Lv；
Z＝[Lv×(1-x-y)]/y。
further, the reference tristimulus value includes XDatum、YDatumAnd ZDatum. The abnormal tristimulus values include XAbnormality (S)、YAbnormality (S)And ZAbnormality (S). The chrominance data comprises chrominance values x andthe chrominance value y.
The correction formula includes:
x＝(Xabnormality (S)–XDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)；
y＝(YAbnormality (S)–YDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)。
The invention has the advantages that: the aging test method for the display panel can judge whether the screened abnormal gray scale is correct or not and correct related display data, so that the real gray scale with the most serious chromatic aberration is found out, and the accuracy of an aging test is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a display panel burn-in test method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating an abnormal gray level determination method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating an abnormal gray scale calibration method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the fluctuation of chromatic values y of gray-scale white dots after the experimental panel is lit for a long time according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a curve of chromatic values y of gray-scale white dots when the experimental panel is initially turned on according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a curve showing chromatic values y of white dots before calibration of gray scales after 48 hours of lighting of the experimental panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a curve of a white point chromaticity value y after calibration of each gray scale after the experimental panel is lighted for 48 hours according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating the fluctuation of the chromatic value y of the white point of each color scale after calibration according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
All method steps described herein may be performed in any suitable order unless the context clearly dictates otherwise. The present invention is not limited to the order of steps described. The use of any and all examples, or exemplary language provided herein, is intended merely to better illuminate the inventive concept and does not pose a limitation on the scope of the inventive concept unless otherwise claimed. Various modifications and adaptations will be apparent to those skilled in the art without departing from the spirit and scope.
Further, it should also be noted that in some alternative implementations, the steps of all methods described herein may occur out of order. For example, two steps shown in succession may, in fact, be executed substantially concurrently, or the steps may sometimes be executed in the reverse order.
Embodiments of the present invention will be described in detail herein with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided to explain the practical application of the invention and to enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.
The embodiment of the invention provides an aging test method of a display panel, which is used for detecting the aging condition of the display panel after being lighted for a long time. The aging test method of the display panel comprises an abnormal gray scale detection method, a judgment method and a calibration method. The detection method is used for preliminarily screening gray scales with color differences generated after aging and abnormal gray scales with the most serious color differences. The judging method is used for judging whether the screened abnormal gray scale is correct or not. If the screened abnormal gray scale is incorrect, the calibration method can correct the wrong chrominance data and re-screen the correct abnormal gray scale.
Specifically, the flow of the aging test method of the display panel is shown in fig. 1, and the aging test method includes the following specific steps:
step S100) lighting a display panel, and measuring related display data of the display panel:
and setting the aging test duration of the display panel, and lightening the display panel. And after the display panel is lightened, measuring the display data of the display panel during initial lightening.
And continuously lighting the display panel, and measuring the display data of the display panel after the aging test duration again after the lighting duration of the display panel meets the aging test duration.
Specifically, the display data includes data such as chromaticity data, luminance, tristimulus values, and the like of each gray scale. Wherein the chrominance data includes a chrominance value x and a chrominance value y.
Step S200) screening out the gray scale which generates serious chromatic aberration after the display panel is aged by using an abnormal gray scale detection method. Wherein, the detection method comprises steps S210-220.
Step S210) obtaining the chromaticity difference value between the initial lighting time and the long-time lighting time of the display panel:
in the display data measured in step S100, the chromaticity value y of each gray scale when the display panel is initially lit is obtained, and the chromaticity value y of each gray scale after the display panel is lit for a long time is obtained.
And subtracting the chromatic value y of each gray scale of the display panel during initial lighting from the chromatic value y of each gray scale of the display panel after long-time lighting to obtain the chromatic difference value between each gray scale of the display panel during initial lighting and each gray scale after long-time lighting.
Step S220) screening out a gray scale which generates serious color difference after aging according to the chromaticity difference value:
the chrominance difference values of the respective gray scales obtained by calculation in step S210 are obtained, and the chrominance difference values between the respective gray scales are compared. The gray scale with the largest chromaticity difference value is the abnormal gray scale with the most serious chromaticity difference after aging.
Step S300) judging whether the screened abnormal gray scale is correct or not by using an abnormal gray scale judging method. The flow of the determination method is shown in fig. 2, and it includes steps S310-S330.
Step S310) sets the standard deviation range:
and setting a standard difference range of the contrast of the display panel during initial lighting and after long-time lighting. Preferably, the standard deviation ranges from-20% to 20%.
Step S320) contrast data of the display panel under different lighting time lengths are obtained:
in the display data measured in step S100, a first bright-state luminance and a first dark-state luminance at the time of initial lighting of the display panel and a second bright-state luminance and a second dark-state luminance after long-time lighting of the display panel are obtained.
And substituting the first bright-state brightness and the first dark-state brightness into a contrast formula, and calculating to obtain the first contrast of the display panel during initial lighting.
And substituting the second bright-state brightness and the second dark-state brightness into a contrast formula, and calculating to obtain a second contrast of the display panel after being lighted for a long time.
The first bright-state brightness is the brightness of a white picture when the display panel is initially lighted, the first dark-state brightness is the brightness of a black picture when the display panel is initially lighted, the second bright-state brightness is the brightness of the white picture after the display panel is lighted for a long time, and the second dark-state brightness is the brightness of the black picture after the display panel is lighted for a long time. The contrast ratio formula is: contrast ratio bright state luminance/dark state luminance.
Step S330) judging whether the screened abnormal gray scale is correct or not according to the contrast data:
comparing the magnitude between the first contrast and the second contrast, and calculating the amplitude between the first contrast and the second contrast. When the fluctuation between the first contrast and the second contrast is within the standard deviation range, the abnormal gray scale screened out in step S200 is correct, and the related data thereof can be directly used. When the fluctuation between the first contrast and the second contrast exceeds the standard deviation range, the abnormal gray scale screened out in step S200 is incorrect and needs to be corrected.
Step S400) correcting the abnormal gray scale and the related data thereof by using the calibration method of the abnormal gray scale. The flow of the calibration method is shown in fig. 3, and it includes steps S410-S430.
Step S410) obtaining each gray scale tristimulus value of the display panel under different lighting time:
in the display data measured in step S100, tristimulus values X, Y and Z of each gray level at the time of initial lighting of the display panel and after long-time lighting of the display panel are acquired. The tristimulus values can be measured directly by the measuring tool, or obtained through steps S411 to S412:
step S411) acquiring luminance and chrominance data of each gray scale of the display panel at the initial lighting and after the long-time lighting, from the display data measured in step S100;
step S412) substituting the brightness (Lv) and the chromaticity data of each gray scale into a tristimulus value calculation formula, and calculating to obtain the tristimulus values of each gray scale when the display panel is initially lighted and after being lighted for a long time. Wherein the tristimulus value calculation formula comprises:
X＝(Lv×x)/y；
Y＝Lv；
Z＝[Lv×(1-x-y)]/y。
step S420) abnormal chromaticity data is corrected through the tristimulus values and the correction formula:
the first contrast and the second contrast calculated in step S300 are acquired, and the first contrast and the second contrast are compared. Wherein, the contrast with larger numerical value, the tristimulus value of the corresponding dark state picture is the reference tristimulus value; the contrast with smaller value, the tristimulus value of each corresponding gray scale is abnormal tristimulus value. And taking the reference tristimulus value as a correction reference of the chromaticity data, correcting abnormal tristimulus values with abnormality, and obtaining a corrected normal tristimulus value.
According to the contrast formula, the contrast is smaller, that is, the dark state brightness is larger, and the brightness of the low gray scale image is increased on the basis of the original dark state brightness, so that the data is abnormal. Therefore, each gray scale data corresponding to a smaller contrast ratio needs to be corrected, thereby avoiding affecting the low gray scale image.
And acquiring the abnormal tristimulus value of each gray scale, and correcting the abnormal tristimulus value of each gray scale through a tristimulus value correction formula to obtain the normal tristimulus value of each gray scale. Wherein the reference tristimulus value comprises XDatum、YDatumAnd ZDatumThe abnormal tristimulus value comprises XAbnormality (S)、YAbnormality (S)And ZAbnormality (S)Said normal tristimulus value comprises XIs normal、YIs normalAnd ZIs normal。
The tristimulus value correction formula includes:
Xis normal＝XAbnormality (S)-XDatum；
YIs normal＝YAbnormality (S)-YDatum；
ZIs normal＝YAbnormality (S)-YDatum。
As is known, the conversion equation between the chromaticity data and the tristimulus values is:
x＝X/X+Y+Z；
y＝Y/X+Y+Z。
i.e. the correct chrominance data is:
x＝Xis normal/(XIs normal+YIs normal+ZIs normal)；
y＝YIs normal/(XIs normal+YIs normal+ZIs normal)。
Further, the correction formula of the tristimulus values is combined with the conversion formula, so that the correction formula of the chromaticity data can be obtained:
x＝(Xabnormality (S)–XDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)；
y＝(YAbnormality (S)–YDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)。
And respectively substituting the reference tristimulus values and the abnormal tristimulus values of each gray scale into the correction formula of the chrominance data to calculate so as to obtain the corrected correct chrominance data of each gray scale.
Step S430) the corrected correct chromaticity data is used for calculating the chromaticity difference value of each gray scale of the display panel during initial lighting and after long-time lighting again, and the gray scale which generates serious chromatic aberration after aging is screened out through the calculated chromaticity difference value.
Specifically, the embodiment of the invention provides an experiment panel, and the experiment panel adopts the aging test method to carry out an aging experiment. In this experiment, the test panel was aged for 48 hours.
The experimental panel was lit, and display data of the experimental panel at the initial lighting and display data of the experimental panel after 48 hours of lighting were measured after lighting.
In the measured display data, the colorimetric values y of the gray scales of the experimental panel during initial lighting and the colorimetric values y of the gray scales of the experimental panel after 48 hours of lighting are obtained. The difference between the white point chromaticity value y of each gray scale at the initial lighting and the white point chromaticity value y of each gray scale after 48 hours of lighting was calculated, and a difference fluctuation graph of the white point chromaticity values y as shown in fig. 4 was drawn. As can be seen from fig. 4, the maximum value of chromatic aberration occurs in the 0 th order.
Acquiring first bright-state brightness and first dark-state brightness of the experimental panel when the experimental panel is initially lighted, and second bright-state brightness and second dark-state brightness of the experimental panel after the experimental panel is lighted for 48 hours, and respectively calculating first contrast of the experimental panel when the experimental panel is initially lighted and second contrast of the experimental panel after the experimental panel is lighted for 48 hours.
Specifically, the relevant brightness data and contrast data of the experimental panel are shown in table 1.
| At the time of initial lighting | After 48 hours of lighting | |
| Brightness of bright state | 345.2 | 343.6 |
| Brightness of dark state | 0.085 | 0.212 |
| Contrast ratio | 4061 | 1621 |
TABLE 1
As can be seen from the data in table 1, the first contrast is 4061, the second contrast is 1621, and the fluctuation between the first contrast and the second contrast is-60%, which is beyond the standard deviation range of-20% to 20%, so the correction is required.
As can be seen from the contrast data, the first contrast is greater than the second contrast chromaticity. Therefore, the tristimulus value of the dark state 0 order corresponding to the first contrast is the reference tristimulus value, and the tristimulus values of the gray scales corresponding to the second contrast are abnormal tristimulus values, that is, abnormal original chromaticity data of the experimental panel after being lighted for 48 hours needs to be corrected through a corresponding correction formula, and correct new chromaticity data is obtained again.
Specifically, in the embodiment of the present invention, the data sets of the gray-scale colorimetric values y before and after calibration of the experimental panel at the initial lighting time and after 48 hours of lighting are respectively plotted as the graphs 5 to 7. As can be seen from fig. 6-7, the chromaticity value y of the experimental panel after 48 hours of lighting was effectively corrected.
The difference between the chromaticity value y of each gray scale at the initial lighting and the chromaticity value y of each gray scale after 48 hours of lighting is calculated again from the corrected chromaticity data, and is plotted as a difference fluctuation diagram as shown in fig. 8. As can be seen from the content in fig. 8, the maximum value of the actual color difference after the experimental panel is lit for a long time is not in 0 th order, but is around 20 th order.
The display panel aging test method provided by the embodiment of the invention is added with the abnormal gray scale judging method and the calibration method, judges whether the screened abnormal gray scale is correct or not through the judging method, obtains accurate display data through the calibration method, and finds out the real gray scale with the most serious chromatic aberration, thereby improving the accuracy of the aging test.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A display panel aging test method is characterized by comprising the following steps:
lighting a display panel and measuring display data of the display panel;
acquiring a chromaticity difference value between the initial lighting and the long-time lighting of the display panel;
screening abnormal gray scales according to the chrominance difference value;
judging whether the screened abnormal gray scale is correct or not;
and when the screened abnormal gray scale is incorrect, calibrating the abnormal gray scale.
2. The method of claim 1, wherein the step of determining whether the screened abnormal gray scale is correct comprises the steps of:
setting a standard difference range;
acquiring a first contrast of the display panel during initial lighting;
acquiring a second contrast of the display panel after being lighted for a long time;
comparing the first contrast and the second contrast;
when the fluctuation between the first contrast and the second contrast is in the standard difference range, judging that the screened abnormal gray scale is correct;
and when the fluctuation between the first contrast and the second contrast exceeds the standard difference range, judging the screened abnormal gray scale error.
3. The display panel burn-in method of claim 2, wherein the step of acquiring the first contrast of the display panel at the initial lighting comprises the steps of:
when the display panel is initially lightened, acquiring first bright-state brightness and first dark-state brightness of the display panel;
and substituting the first bright-state brightness and the first dark-state brightness into a contrast formula to calculate the first contrast.
4. The display panel burn-in method of claim 2, wherein the step of obtaining the second contrast of the display panel after the long time lighting comprises the steps of:
after the display panel is lightened for a long time, acquiring second bright-state brightness and second dark-state brightness of the display panel;
and substituting the second bright-state brightness and the second dark-state brightness into a contrast formula to calculate the second contrast.
5. The display panel burn-in method of claim 3 or 4, wherein the contrast formula is:
contrast ratio bright state luminance/dark state luminance.
6. The display panel burn-in test method of claim 2, wherein the standard deviation ranges from-20% to 20%.
7. The display panel burn-in test method of claim 1, wherein the step of calibrating the abnormal gray scale comprises the steps of:
acquiring a reference tristimulus value of the display panel and an abnormal tristimulus value needing to be corrected;
substituting the reference tristimulus value and the abnormal tristimulus value into a correction formula to calculate correct chromaticity data;
and obtaining the corrected correct abnormal gray scale through correct chrominance data.
8. The aging test method of a display panel as claimed in claim 7, wherein the step of obtaining the reference tristimulus value and the abnormal tristimulus value of each gray scale of the display panel comprises the steps of:
acquiring tristimulus values X, Y and Z of each gray scale when the display panel is initially lighted and after the display panel is lighted for a long time;
acquiring a first contrast of the display panel during initial lighting;
acquiring a second contrast of the display panel after being lighted for a long time;
comparing the first contrast and the second contrast;
regarding the contrast with larger value, taking the tristimulus value of the corresponding dark-state picture as the reference tristimulus value;
and regarding the contrast with smaller numerical value, taking the tristimulus value of each corresponding gray scale as the abnormal tristimulus value.
9. The aging test method of claim 8, wherein the steps of obtaining the tristimulus values X, Y and Z for each gray level at the initial lighting time and after the long-time lighting time comprise the steps of:
acquiring the brightness Lv, the chromatic value x and the chromatic value y of each gray scale of the display panel during initial lighting and after long-time lighting;
respectively calculating the tristimulus values of each gray scale of the display panel during initial lighting and after long-time lighting through a tristimulus value calculation formula;
the tristimulus value calculation formula comprises:
X＝(Lv×x)/y；
Y＝Lv；
Z＝[Lv×(1-x-y)]/y。
10. the display panel burn-in method of claim 7, wherein the reference tristimulus value comprises XDatum、YDatumAnd ZDatum；
The abnormal tristimulus values include XAbnormality (S)、YAbnormality (S)And ZAbnormality (S)；
The chrominance data comprises a chrominance value x and a chrominance value y;
the correction formula includes:
x＝(Xabnormality (S)–XDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)；
y＝(YAbnormality (S)–YDatum)/(XAbnormality (S)+YAbnormality (S)+ZAbnormality (S)-XDatum-YDatum-ZDatum)。
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| CN101046931A (en) * | 2006-03-27 | 2007-10-03 | 船井电机株式会社 | Display apparatus, burn-in correction system and burn-in correction method |
| CN104851412A (en) * | 2015-05-28 | 2015-08-19 | 上海华勤通讯技术有限公司 | Display control method and display control device for screen, display screen and electronic equipment |
| CN110634444A (en) * | 2019-09-24 | 2019-12-31 | 昆山国显光电有限公司 | Compensation method of display panel |
| CN110808006A (en) * | 2019-09-06 | 2020-02-18 | 华为技术有限公司 | Display screen aging compensation method, circuit system and electronic equipment |
| CN111063320A (en) * | 2019-12-04 | 2020-04-24 | 深圳市华星光电半导体显示技术有限公司 | Display panel aging compensation method, device and system and display device |
| CN111968590A (en) * | 2020-08-12 | 2020-11-20 | Tcl华星光电技术有限公司 | Picture display adjusting method and device, storage medium and display equipment |
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2021
- 2021-10-26 CN CN202310743389.8A patent/CN116798327A/en active Pending
- 2021-10-26 CN CN202111250371.1A patent/CN113889010B/en active Active
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| CN101046931A (en) * | 2006-03-27 | 2007-10-03 | 船井电机株式会社 | Display apparatus, burn-in correction system and burn-in correction method |
| CN104851412A (en) * | 2015-05-28 | 2015-08-19 | 上海华勤通讯技术有限公司 | Display control method and display control device for screen, display screen and electronic equipment |
| CN110808006A (en) * | 2019-09-06 | 2020-02-18 | 华为技术有限公司 | Display screen aging compensation method, circuit system and electronic equipment |
| CN110634444A (en) * | 2019-09-24 | 2019-12-31 | 昆山国显光电有限公司 | Compensation method of display panel |
| CN111063320A (en) * | 2019-12-04 | 2020-04-24 | 深圳市华星光电半导体显示技术有限公司 | Display panel aging compensation method, device and system and display device |
| CN111968590A (en) * | 2020-08-12 | 2020-11-20 | Tcl华星光电技术有限公司 | Picture display adjusting method and device, storage medium and display equipment |
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| CN113889010B (en) | 2023-07-25 |
| CN116798327A (en) | 2023-09-22 |
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