CN111883036B - Compensation method and compensation device for display panel - Google Patents
Compensation method and compensation device for display panel Download PDFInfo
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- CN111883036B CN111883036B CN202010739417.5A CN202010739417A CN111883036B CN 111883036 B CN111883036 B CN 111883036B CN 202010739417 A CN202010739417 A CN 202010739417A CN 111883036 B CN111883036 B CN 111883036B
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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
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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Abstract
The invention discloses a compensation method and a compensation device for a display panel. The compensation method of the display panel comprises the following steps: acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data; determining the data reject ratio of the image sensor according to the display picture; when the data reject ratio of the image sensor is smaller than a preset value, the display picture is compensated, so that the accuracy of the display picture acquired by the image sensor can be ensured, and the compensation accuracy of the display panel can be ensured. Moreover, the display data of the display screen is used as the inspection data of the display panel, so that the inspection accuracy of the display panel can be ensured. The image sensor is replaced until the data reject ratio of the image sensor is equal to a preset value, so that the image sensor can be utilized to the maximum extent on the basis of meeting the compensation precision of the display panel, and the utilization rate of the image sensor is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a compensation method and a compensation device for a display panel.
Background
In the compensation process of the display panel, the image sensor is required to photograph to obtain the display picture of the display panel, and the luminous brightness of the display panel is obtained through the display picture to be used as the display data of the subsequent inspection and compensation display panel. With the use of the image sensor, thermal energy generated by the image sensor accelerates to shorten the life thereof. When the image sensor fails, the accuracy of display data acquired by the image sensor is lower, and when the display data is adopted to test and compensate the display panel in the later period, the test accuracy and the compensation accuracy of the display panel are lower, so that the display effect of the display panel is reduced. For example, when the image sensor fails, the accuracy of the light emission luminance data of the display panel is 20% to 30% lower than that when the image sensor is normal, or there are cases where the difference in the light emission luminance data is excessively large, or the like. When the image processing is performed using the light emission luminance data, the light emission luminance data corresponding to the failed image sensor needs to be compensated, increasing the time of the image processing. When the number of image sensor failures is large, the accuracy of the light emission luminance data is low, and the reliability of the light emission luminance data is easily lost.
In order to ensure the accuracy of the image sensor to acquire the display data, the image sensor may be replaced periodically. However, the periodic replacement of the image sensor easily causes waste in use of the image sensor or cannot ensure accuracy in acquiring display data by the image sensor, and there is a contradiction between accuracy in inspection and compensation of the display panel and cost of the inspection and compensation.
Disclosure of Invention
The invention provides a compensation method and a compensation device for a display panel, which are used for ensuring the inspection precision and compensation precision of the display panel and improving the utilization rate of an image sensor.
In a first aspect, an embodiment of the present invention provides a compensation method for a display panel, including:
acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
determining the data reject ratio of the image sensor according to the display picture;
and when the data reject ratio of the image sensor is smaller than a preset value, compensating the display picture.
Optionally, determining the data defect rate of the image sensor according to the display screen includes:
determining the thermalization quantity of the sub-picture according to the display data in the sub-picture;
and determining the data reject ratio of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
Optionally, determining the thermalization quantity of the sub-picture according to the display data in the sub-picture includes:
when the display data of a sub-picture exceeds the threshold range of the display data, determining that the sub-picture is thermalized, recording as thermalized sub-picture and counting.
Optionally, after determining the thermalization number of the sprite according to the display data in the sprite, the method further includes:
and correcting the display data of the thermalized sub-picture according to the display data of the sub-picture around the thermalized sub-picture.
Optionally, correcting the display data of the thermalized sprite according to the display data of the sprites around the thermalized sprites includes:
calculating an average value of display data of sub-pictures around the thermalized sub-picture;
and correcting the display data of the thermalized sprite to be an average value of the display data.
Optionally, the compensation method of the display panel further includes:
and outputting warning information when the data reject ratio of the image sensor is greater than or equal to the preset value.
In a second aspect, an embodiment of the present invention further provides a compensation apparatus for a display panel, including:
the display screen acquisition module is used for acquiring the display screen of the display panel through the image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
the reject ratio determining module is used for determining the data reject ratio of the image sensor according to the display picture;
and the compensation module is used for compensating the display picture when the data reject ratio of the image sensor is smaller than a preset value.
Optionally, the reject ratio determining module includes:
a sub-picture thermalization quantity determining unit, configured to determine the thermalization quantity of the sub-picture according to display data in the sub-picture;
and the defective rate calculating unit is used for determining the data defective rate of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
Optionally, the sprite thermalization number determining unit includes:
the judging unit is used for determining that the sub-picture is thermalized when the display data of the sub-picture exceeds the threshold range of the display data, and recording the thermalized sub-picture;
and the counting unit is used for counting the thermalized sub-pictures.
Optionally, the compensation device of the display panel further includes:
and the correction module is used for correcting the display data of the thermalized sub-picture according to the display data of the sub-picture around the thermalized sub-picture.
According to the technical scheme, the display picture of the display panel is obtained through the image sensor, and the data reject ratio of the image sensor is determined according to the display picture. When the data reject ratio of the image sensor is smaller than a preset value, the accuracy of the display picture acquired by the image sensor can be ensured, so that the compensation can be performed on the display panel, and when the display data of the display picture is used as the data to be compensated when the display panel is compensated, the compensation accuracy of the display panel is ensured. Moreover, the display data of the display screen is used as the inspection data of the display panel, so that the inspection accuracy of the display panel can be ensured. The image sensor is replaced until the data reject ratio of the image sensor is equal to a preset value, so that the image sensor can be utilized to the maximum extent on the basis of meeting the compensation precision of the display panel, and the utilization rate of the image sensor is improved.
Drawings
Fig. 1 is a schematic flow chart of a compensation method for a display panel according to an embodiment of the invention;
fig. 2 is a flowchart illustrating another compensation method of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a display screen of an image sensor in a normal state according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a display screen when an image sensor fails according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating another method for compensating a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a compensation device for a display panel according to an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a flowchart of a compensation method for a display panel according to an embodiment of the present invention. The present embodiment is applicable to a case where an image sensor photographs and obtains a display screen of a display panel, and the method may be performed by a compensation device of the display panel, as shown in fig. 1, and the compensation method of the display panel includes:
s110, acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
specifically, when the display panel displays a screen, the display screen of the display panel may be acquired by the image sensor. When the image sensor acquires a display picture, the image sensor divides the light image on the light receiving surface into a plurality of small units, and converts the light image of each small unit into an electric signal corresponding to the light image to form display data. The light image of each small unit can be used as a sub-picture, and the electric signal formed by converting the light image of each small unit is used as display data included in the sub-picture. For example, the image sensor may divide the display screen into at least millions or even hundreds of millions of small cells, so that millions or even hundreds of millions of display data may be formed.
S120, determining the data reject ratio of the image sensor according to the display picture;
specifically, the data defect rate of the image sensor is a ratio of the number of sub-frames corresponding to defective display data to the number of all sub-frames in the display data corresponding to all sub-frames when the image sensor acquires the display frame. The data reject ratio of an image sensor is related to the performance of the image sensor. When the image sensor is normal, the data failure rate of the image sensor is relatively low, and when the image sensor is failed, the data failure rate of the image sensor is relatively high, so that the state of the image sensor can be judged according to the data failure rate of the image sensor.
And S130, when the data reject ratio of the image sensor is smaller than a preset value, compensating the display picture.
Specifically, when the data reject ratio of the image sensor is smaller than a preset value, the accuracy of the display picture acquired by the image sensor can be ensured, so that the display picture can be compensated, and when the display data of the display picture is used as the data to be compensated in the display panel compensation process, the compensation accuracy of the display panel can be ensured. Moreover, the display data of the display screen is used as the inspection data of the display panel, so that the inspection accuracy of the display panel can be ensured. In addition, the preset value of the data defect rate of the image sensor may be a fixed value preset according to the compensation accuracy of the display panel. When the data reject ratio of the image sensor is smaller than a preset value, the number of sub-pictures corresponding to the defective display data in the display pictures acquired by the image sensor meets the requirement of the compensation precision of the display panel until the data reject ratio of the image sensor is equal to the preset value, the number of sub-pictures corresponding to the defective display data in the display pictures acquired by the image sensor just meets the requirement of the compensation precision of the display panel, and at the moment, the image sensor is replaced, so that the image sensor can be utilized to the greatest extent on the basis of meeting the compensation precision of the display panel, and the utilization ratio of the image sensor is improved.
According to the technical scheme of the embodiment, the display picture of the display panel is obtained through the image sensor, and the data reject ratio of the image sensor is determined according to the display picture. When the data reject ratio of the image sensor is smaller than a preset value, the accuracy of the display picture acquired by the image sensor can be ensured, so that the compensation can be performed on the display panel, and when the display data of the display picture is used as the data to be compensated when the display panel is compensated, the compensation accuracy of the display panel is ensured. Moreover, the display data of the display screen is used as the inspection data of the display panel, so that the inspection accuracy of the display panel can be ensured. The image sensor is replaced until the data reject ratio of the image sensor is equal to a preset value, so that the image sensor can be utilized to the maximum extent on the basis of meeting the compensation precision of the display panel, and the utilization rate of the image sensor is improved.
Fig. 2 is a flowchart illustrating another compensation method of a display panel according to an embodiment of the invention. As shown in fig. 2, the compensation method of the display panel includes:
s210, acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
s220, determining the thermalization quantity of the sub-picture according to the display data in the sub-picture;
specifically, after determining the display data corresponding to the sub-frame, the thermalization number of the sub-frame may be determined according to the display data in the sub-frame, including:
when the display data of a sub-picture exceeds the threshold range of the display data, determining that the sub-picture is thermalized, recording as thermalized sub-picture and counting.
The threshold range of the display data may be a preset display data range. When the image sensor is normal, the range of the display data may be used as the threshold range of the display data when the image sensor acquires the display screen of the display panel. When the display data of the sub-picture obtained by the image sensor exceeds the threshold range of the display data, the display data of the sub-picture is judged to be inaccurate display data, and then the thermalization of the sub-picture can be determined, namely the thermalization sub-picture. According to the above process, the display data of all the sub-pictures of the display picture are judged, and the thermalized sub-pictures are counted, so that the thermalized number of the sub-pictures can be determined according to the display data in the sub-pictures. Fig. 3 is a schematic diagram of a display screen of an image sensor in a normal state according to an embodiment of the present invention, and fig. 4 is a schematic diagram of a display screen of an image sensor in a fault state according to an embodiment of the present invention. As shown in fig. 3 and 4, the display screen includes, for example, 9 sub-screens, when the image sensor fails, the middle sub-screen is converted from a gray-scale screen to a black screen, and at this time, the corresponding display data exceeds the threshold range of the display data of the sub-screen, so that the sub-screen can be judged to be a thermalized sub-screen. And after judging the display data of all the sub-pictures of the display picture, counting the thermalized sub-pictures, and determining the thermalization quantity of the sub-pictures.
S230, determining the data failure rate of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
Specifically, after the thermalization number of the sub-picture is determined, the ratio of the thermalization number of the sub-picture to the total data of the sub-picture is determined according to the thermalization number of the sub-picture and the total number of the sub-picture, so that the data reject ratio of the image sensor can be determined.
And S240, when the data reject ratio of the image sensor is smaller than a preset value, compensating the display picture.
On the basis of the above technical solutions, after determining the thermalization number of the sub-frames according to the display data in the sub-frames, the method further includes:
and correcting the display data of the thermalized sprite according to the display data of the sprites around the thermalized sprite.
Specifically, with continued reference to fig. 3, after determining that the middle sub-picture is a thermalized sub-picture, the display data of the middle sub-picture may be modified according to the display data of the sub-pictures around it. Illustratively, modifying the display data of the thermalized sprite according to the display data of the sprites surrounding the thermalized sprite includes:
calculating an average value of display data of sub-pictures around the thermalized sub-picture;
specifically, in fig. 3, the average value of the display data of the sub-frames around the middle sub-frame is calculated, that is, the average value of the display data of 8 sub-frames other than the middle sub-frame.
And correcting the display data of the thermalized sprite to be an average value of the display data.
Specifically, the display data of the thermalization sub-picture is corrected to be the average value of the display data of other 8 sub-pictures, so that the display data of the thermalization sub-picture is more similar to the display data corresponding to the thermalization sub-picture when the image sensor is normal, the display data of the thermalization sub-picture can be corrected to be the display data of the thermalization sub-picture when the image sensor is normal as far as possible, and the influence of the data reject ratio of the image sensor on the compensation of a subsequent display panel is reduced.
Fig. 5 is a flowchart illustrating another compensation method of a display panel according to an embodiment of the invention. As shown in fig. 5, the compensation method of the display panel includes:
s510, acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
s520, determining the data reject ratio of the image sensor according to the display picture;
and S530, when the data reject ratio of the image sensor is smaller than a preset value, compensating the display picture.
S540, outputting warning information when the data reject ratio of the image sensor is greater than or equal to a preset value.
Specifically, when the data reject ratio of the image sensor is greater than or equal to a preset value, the number of sub-frames corresponding to the defective display data in the display frames acquired by the image sensor is relatively large, that is, the accuracy of the display frames acquired by the image sensor is relatively low, and when the display data of the display frames are used as data to be compensated when the display panel is compensated, the compensation accuracy of the display panel cannot be ensured. Therefore, when the data reject ratio of the image sensor is larger than or equal to a preset value, warning information is output, and compensation of the display picture is stopped, so that image processing of the data to be compensated on the basis of inaccurate data to be compensated in the compensation process of the display picture can be avoided, the time of image processing is increased, even the phenomenon of data reliability is lost, and the reliability of the image sensor is improved. In the display frame compensation process, the image processing may be to compensate the display data by adopting a Demura algorithm.
The embodiment of the invention also provides a compensation device of the display panel. Fig. 6 is a schematic structural diagram of a compensation device for a display panel according to an embodiment of the invention. As shown in fig. 6, the compensation device of the display panel includes:
a display screen acquisition module 10 for acquiring a display screen of the display panel through the image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
a reject ratio determining module 20, configured to determine a data reject ratio of the image sensor according to the display screen;
the compensation module 30 is configured to compensate the display screen when the data defect rate of the image sensor is smaller than a preset value.
According to the technical scheme of the embodiment, the display picture acquisition module acquires the display picture of the display panel through the image sensor, and the reject ratio determination module determines the data reject ratio of the image sensor according to the display picture. When the data reject ratio of the image sensor is smaller than a preset value, the accuracy of the display picture acquired by the image sensor can be ensured, so that the compensation module can compensate the display panel, and when the display data of the display picture is used as the data to be compensated when the display panel is compensated, the compensation accuracy of the display panel is ensured. Moreover, the display data of the display screen is used as the inspection data of the display panel, so that the inspection accuracy of the display panel can be ensured. The image sensor is replaced until the data reject ratio of the image sensor is equal to a preset value, so that the image sensor can be utilized to the maximum extent on the basis of meeting the compensation precision of the display panel, and the utilization rate of the image sensor is improved.
On the basis of the above embodiment, the reject ratio determination module includes:
a sub-picture thermalization quantity determining unit for determining the thermalization quantity of the sub-picture according to the display data in the sub-picture;
and the defective rate calculating unit is used for determining the data defective rate of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
Optionally, the picture thermalization number determining unit includes:
the judging unit is used for determining that the sub-picture is thermalized when the display data of the sub-picture exceeds the threshold range of the display data, and recording the thermalized sub-picture;
and the counting unit is used for counting the thermalized sub-pictures.
On the basis of the above technical solutions, the compensation device of the display panel may further include:
and the correction module is used for correcting the display data of the thermalized sub-picture according to the display data of the sub-picture around the thermalized sub-picture.
Specifically, the display data of the thermalization sub-picture is corrected by the display data of the sub-picture around the thermalization sub-picture, so that the display data of the thermalization sub-picture is more similar to the display data corresponding to the thermalization sub-picture when the image sensor is normal, the display data of the thermalization sub-picture can be corrected to the display data of the thermalization sub-picture when the image sensor is normal as far as possible, and the influence of the data defect rate of the image sensor on the compensation of a subsequent display panel is reduced.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. A compensation method for a display panel, comprising:
acquiring a display picture of a display panel through an image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
determining the data reject ratio of the image sensor according to the display picture; the data reject ratio of the image sensor is used for judging the state of the image sensor;
when the data reject ratio of the image sensor is smaller than a preset value, compensating the display picture;
the data reject ratio of the image sensor is the ratio of the number of the sub-pictures corresponding to the reject ratio display data to the number of all the sub-pictures in the display data corresponding to all the sub-pictures when the image sensor acquires the display pictures;
wherein determining the data defect rate of the image sensor according to the display picture comprises:
determining the thermalization quantity of the sub-picture according to the display data in the sub-picture;
and determining the data reject ratio of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
2. The method of compensating for a display panel according to claim 1, wherein determining the thermalization number of the sub-picture based on the display data in the sub-picture comprises:
when the display data of a sub-picture exceeds the threshold range of the display data, determining that the sub-picture is thermalized, recording as thermalized sub-picture and counting.
3. The compensation method of a display panel according to claim 2, further comprising, after determining the thermalization number of the sub-picture from the display data in the sub-picture:
and correcting the display data of the thermalized sub-picture according to the display data of the sub-picture around the thermalized sub-picture.
4. A method of compensating a display panel according to claim 3, wherein correcting the display data of the thermalized sprite according to the display data of the sprites surrounding the thermalized sprite comprises:
calculating an average value of display data of sub-pictures around the thermalized sub-picture;
and correcting the display data of the thermalized sprite to be an average value of the display data.
5. The method of compensating for a display panel of claim 1, further comprising:
and outputting warning information when the data reject ratio of the image sensor is greater than or equal to the preset value.
6. A compensation device for a display panel, comprising:
the display screen acquisition module is used for acquiring the display screen of the display panel through the image sensor; the display screen comprises a plurality of sub-screens, and each sub-screen comprises display data;
the reject ratio determining module is used for determining the data reject ratio of the image sensor according to the display picture; the data reject ratio of the image sensor is used for judging the state of the image sensor;
the compensation module is used for compensating the display picture when the data reject ratio of the image sensor is smaller than a preset value;
the data reject ratio of the image sensor is the ratio of the number of the sub-pictures corresponding to the reject ratio display data to the number of all the sub-pictures in the display data corresponding to all the sub-pictures when the image sensor acquires the display pictures;
wherein, the reject ratio determination module comprises:
a sub-picture thermalization quantity determining unit, configured to determine the thermalization quantity of the sub-picture according to display data in the sub-picture;
and the defective rate calculating unit is used for determining the data defective rate of the image sensor according to the thermalization quantity of the sub-pictures and the total quantity of the sub-pictures.
7. The compensation device of a display panel according to claim 6, wherein the sub-picture thermalization number determination unit includes:
the judging unit is used for determining that the sub-picture is thermalized when the display data of the sub-picture exceeds the threshold range of the display data, and recording the thermalized sub-picture;
and the counting unit is used for counting the thermalized sub-pictures.
8. The compensation device of a display panel according to claim 7, further comprising:
and the correction module is used for correcting the display data of the thermalized sub-picture according to the display data of the sub-picture around the thermalized sub-picture.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07333755A (en) * | 1994-06-14 | 1995-12-22 | Konica Corp | Device for determining exposure for photographic printing, photographic printing simulator, and photographic printing device |
| JP2001075164A (en) * | 1999-09-06 | 2001-03-23 | Olympus Optical Co Ltd | Intra-finder display device and camera |
| CN1881070A (en) * | 2002-07-23 | 2006-12-20 | 日本电气视象技术株式会社 | Projector |
| CN101150661A (en) * | 2006-09-22 | 2008-03-26 | 佳能株式会社 | Image processing apparatus, image capture apparatus and control method therefor |
| JP2008204384A (en) * | 2007-02-22 | 2008-09-04 | Canon Inc | Image pickup device, object detection method and posture parameter calculation method |
| CN101783970A (en) * | 2009-12-22 | 2010-07-21 | 新太科技股份有限公司 | Methods, devices and systems for automatically detecting and managing fault of camera |
| JP2012205229A (en) * | 2011-03-28 | 2012-10-22 | Hitachi Ltd | Camera-installation supporting method and image recognition method |
| JP2013255121A (en) * | 2012-06-07 | 2013-12-19 | Canon Inc | Image processing device and image processing device control method |
| CN104885381A (en) * | 2012-12-27 | 2015-09-02 | 松下电器（美国）知识产权公司 | Information communication method |
| CN107086021A (en) * | 2017-04-20 | 2017-08-22 | 京东方科技集团股份有限公司 | The mura compensation systems and method of display screen |
| CN108259892A (en) * | 2018-03-21 | 2018-07-06 | 深圳怡化电脑股份有限公司 | Detection method, system and the device of imaging sensor |
| CN110808001A (en) * | 2019-11-29 | 2020-02-18 | 北京兆维电子(集团)有限责任公司 | OLED panel display defect detection equipment |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5659823A (en) * | 1990-08-29 | 1997-08-19 | Minolta Camera Kabushiki Kaisha | Camera |
| JP5253899B2 (en) * | 2008-06-20 | 2013-07-31 | シャープ株式会社 | Display control circuit, liquid crystal display device including the same, and display control method |
| CN104900178B (en) * | 2015-06-18 | 2017-10-13 | 西安诺瓦电子科技有限公司 | Brightness abnormal image detection method and LED display uniformity correcting method |
| KR102419876B1 (en) * | 2015-08-21 | 2022-07-12 | 삼성디스플레이 주식회사 | Method of compensatting degradation and display device performing the same |
| CN106770362B (en) * | 2016-12-27 | 2019-12-31 | 武汉精测电子集团股份有限公司 | Macroscopic defect detection device and method based on AOI |
| CN106814479B (en) * | 2017-01-11 | 2019-07-16 | 昆山国显光电有限公司 | A kind of offset compensating method of panel defect location, apparatus and system |
| CN106847180B (en) * | 2017-04-24 | 2019-01-22 | 深圳市华星光电半导体显示技术有限公司 | The luminance compensation system and luminance compensation method of OLED display |
| CN107221307A (en) * | 2017-07-31 | 2017-09-29 | 京东方科技集团股份有限公司 | The compensation method of display module and compensation device |
| CN109389925A (en) * | 2017-08-08 | 2019-02-26 | 宏碁股份有限公司 | Display and its dynamic driving voltage compensating method |
| CN108346393B (en) * | 2018-01-23 | 2021-03-19 | 明基智能科技（上海）有限公司 | Screen correction method and screen correction system |
| CN109410805A (en) * | 2018-10-30 | 2019-03-01 | 苏州华兴源创科技股份有限公司 | A kind of display panel detection system |
-
2020
- 2020-07-28 CN CN202010739417.5A patent/CN111883036B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07333755A (en) * | 1994-06-14 | 1995-12-22 | Konica Corp | Device for determining exposure for photographic printing, photographic printing simulator, and photographic printing device |
| JP2001075164A (en) * | 1999-09-06 | 2001-03-23 | Olympus Optical Co Ltd | Intra-finder display device and camera |
| CN1881070A (en) * | 2002-07-23 | 2006-12-20 | 日本电气视象技术株式会社 | Projector |
| CN101150661A (en) * | 2006-09-22 | 2008-03-26 | 佳能株式会社 | Image processing apparatus, image capture apparatus and control method therefor |
| JP2008204384A (en) * | 2007-02-22 | 2008-09-04 | Canon Inc | Image pickup device, object detection method and posture parameter calculation method |
| CN101783970A (en) * | 2009-12-22 | 2010-07-21 | 新太科技股份有限公司 | Methods, devices and systems for automatically detecting and managing fault of camera |
| JP2012205229A (en) * | 2011-03-28 | 2012-10-22 | Hitachi Ltd | Camera-installation supporting method and image recognition method |
| JP2013255121A (en) * | 2012-06-07 | 2013-12-19 | Canon Inc | Image processing device and image processing device control method |
| CN104885381A (en) * | 2012-12-27 | 2015-09-02 | 松下电器（美国）知识产权公司 | Information communication method |
| CN107086021A (en) * | 2017-04-20 | 2017-08-22 | 京东方科技集团股份有限公司 | The mura compensation systems and method of display screen |
| CN108259892A (en) * | 2018-03-21 | 2018-07-06 | 深圳怡化电脑股份有限公司 | Detection method, system and the device of imaging sensor |
| CN110808001A (en) * | 2019-11-29 | 2020-02-18 | 北京兆维电子(集团)有限责任公司 | OLED panel display defect detection equipment |
Non-Patent Citations (1)
| Title |
|---|
| 葛宜峰 ; 钱志禹 ; 陈平 ; 孙勇 ; 李艳平 ; 刘海滨 ; 李方庆 ; 彭帆 ; .大尺寸液晶显示屏MURA不良电学补偿研究.电子世界.2018,(第01期),全文. * |
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