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Pixel circuit, compensation method for pixel circuit and display device

專利號
US10867554B2
公開日期
2020-12-15
申請人
Hefei Xinsheng Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd.(CN Hefei CN Beijing)
發(fā)明人
Min He; Song Meng; Fei Yang; Chun Cao; Xiaolong Wei
IPC分類
G09G3/3233; G09G3/3266; G09G3/3275
技術(shù)領(lǐng)域
voltage,transistor,signal,reset,scan,emitting,terminal,sensing,tft3,switching
地域: Anhui

摘要

The present disclosure relates to a pixel circuit, a compensation method and a display device. The pixel circuit includes a first switching circuit for supplying a data voltage to a first node in response to a first scan signal being valid, a second switching circuit for conductively connecting a sensing signal line with a second node in response to a second scan signal being valid, a reset circuit for supplying a reset voltage to the sensing signal line in response to a reset control signal being valid, a light-emitting element, and a driving transistor for enabling, when the light-emitting element emits light, the sensing signal line to be charged in response to the second scan signal being valid and the reset control signal being invalid, the voltage of the sensing signal line is sensed after it was charged so as to compensate the data voltage.

說明書

In summary, according to a compensation method for a pixel circuit and a display device provided by the embodiments of the present disclosure, the voltage of the anode of the light-emitting diode may be sensed during a display process. As such, the aging degree of the light-emitting diode may be determined subsequently according to the sensed voltage of the anode of the light-emitting diode, so that aging compensation may be performed for the light-emitting diode using the sensed voltage of the anode of the light-emitting diode during the display process, thereby avoiding the brightness decay that would otherwise occurs during the display process, improving the display effect of the products and enhancing the user's experience.

Those skilled in the art would appreciate that embodiments of the present application may be provided as a method, system, or computer program product. Therefore, the present application may take a form of a completely hardware embodiment, a completely software embodiment, or an embodiment integrating software and hardware. Moreover, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program codes therein.

權(quán)利要求

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