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Compensation method of pixel circuit in organic light-emitting diode display panel and related devices

專利號
US10867549B2
公開日期
2020-12-15
申請人
BOE Technology Group Co., Ltd.（CN Beijing）
發(fā)明人
Minghua Xuan
IPC分類
G09G3/3208
技術(shù)領(lǐng)域
voltage,pixel,transistor,emitting,display,signal,in,circuit,frame,driver
地域： Beijing

摘要

The disclosure discloses a compensation method and device of an organic light-emitting diode display panel, and an organic light-emitting diode display device. A high-voltage signal received at a first electrode of a driver transistor in the pixel circuit is detected when a light-emitting element in the pixel circuit is emitting light in the current frame. Then the voltage difference between the high-voltage signals received by the driver transistor in the current frame and a preceding frame, i.e., compensation voltage, is determined according to the detected high-voltage signal received by the pixel circuit in the current frame, and the pre-stored high-voltage signal received by the pixel circuit in the preceding frame. When the compensation voltage lies out of a preset range, voltage compensation is performed on a reference voltage signal applied to the pixel circuit according to the compensation voltage.

說明書

Optionally in the compensation device according to the embodiment of the disclosure, the storing unit is further configured to store the detected high-voltage signal received at the first electrode of the driver transistor in the pixel circuit in the current frame.

Correspondingly an embodiment of this disclosure further provides an organic light-emitting display device including an organic light-emitting display panel including a plurality of pixel circuits arranged in an array, wherein the organic light-emitting display device further includes the compensation device according to any one of the embodiments above of this disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flow chart of a compensation method of an organic light-emitting diode display panel according to an embodiment of the disclosure;

FIG. 2 is a first flow chart of the compensation method according to the embodiment of the disclosure;

FIG. 3 is a second flow chart of the compensation method according to the embodiment of the disclosure;

FIG. 4 is a schematic structural diagram of a pixel circuit according to an embodiment of the disclosure;

FIG. 5 is a timing diagram of the pixel circuit as illustrated in FIG. 4; and

FIG. 6 is a schematic structural diagram of a compensation device of an organic light-emitting diode display panel according to an embodiment of the disclosure.

 DETAILED DESCRIPTION

權(quán)利要求

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