Compensation method and device for display panel and display device
A display panel and compensation method technology, applied in static indicators, instruments, etc., can solve problems such as display unevenness, characteristic drift of drive units and light-emitting units, and lack of effective technical solutions for compensation of OLED device life attenuation, so as to achieve improvement Compensation effect, effect of improving accuracy
Active Publication Date: 2021-02-05
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
[0002] With the continuous development and progress of display technology, there are more and more new display products. Because of the process and process, the characteristics of the display are not uniform, and uniformity compensation (De-Mura) is required; and in the display process Among them, TFT devices or OLED devices and other drive units and light-emitting units will have characteristic drift, which will lead to worsening of the unevenness of the display, and it is also necessary to detect and compensate for the characteristic drift of the device
[0003] Aiming at the characteristic drift of display devices, the industry has also developed a variety of compensation schemes, but most of them are compensation for the characteristics of TFT devices, and there is no effective technical solution for the compensation of life decay of OLED devices.
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0043] In the embodiments of the present invention, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of features, numbers, steps, acts, components, parts or combinations thereof disclosed in this specification, and are not intended to The possibility that one or more other features, numbers, steps, acts, parts, parts or combinations thereof exist or be added is excluded.
[0044] Embodiments of the present application pr...
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The embodiment of the invention discloses a compensation method and device for a display panel and the display device, and the method comprises the steps: obtaining a reset signal, starting timing, converting the received display data into the current information and brightness information after timing, calculating a characteristic drift coefficient based on the timed time information and the current brightness information, determining compensation current information according to the characteristic drift coefficient, and performing current compensation on the current current information basedon the compensation current information. A drift estimation coefficient is determined in cooperation with a reset signal and display data, so that the influence of current difference caused by characteristic drift on the OLED life data estimation precision is corrected, the accuracy of life attenuation degree estimation and compensation of an OLED device is improved, and the compensation effect is improved.
Description
technical field [0001] The present application relates to the field of display technology, in particular to a compensation method, a compensation device and a display device for a display panel. Background technique [0002] With the continuous development and progress of display technology, there are more and more new display products. Because of the process and process, the characteristics of the display are not uniform, and uniformity compensation (De-Mura) is required; and in the display process Among them, TFT devices or OLED devices and other drive units and light-emitting units will have characteristic drift, which will lead to worsening of the unevenness of the display, and it is also necessary to detect and compensate for the characteristic drift of the device. [0003] Aiming at the characteristic drift of display devices, industry insiders have also developed a variety of compensation schemes, but most of them are aimed at compensating the characteristics of TFT d...
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IPC IPC(8): G09G3/3208G09G3/3233
CPCG09G3/3208G09G3/3233G09G2320/0626G09G2320/0271
Inventor 王利民
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD