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

專(zhuān)利號(hào)
US10867549B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
BOE Technology Group Co., Ltd.(CN Beijing)
發(fā)明人
Minghua Xuan
IPC分類(lèi)
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(shuō)明書(shū)

Optionally in the compensation method according to the embodiment of the disclosure, a plurality of pixel circuits are arranged in a display area of the organic light-emitting display panel, and the method includes: detecting the high-voltage signal received at the first electrode of the driver transistor in each of the plurality of pixel circuits in the organic light-emitting diode display panel in the current frame when the light-emitting element in each of the pixel circuits is emitting light; determining compensation voltage corresponding to each of the pixel circuits according to the detected high-voltage signal received by each of the pixel circuits in the current frame, and the pre-stored high-voltage signal received by each of the pixel circuits in the preceding frame, wherein the compensation voltage is the voltage difference between a high-voltage signal received by a corresponding pixel circuit in the current frame, and a high-voltage signal received by the corresponding pixel circuit in the preceding frame; and performing, for each of the pixel circuits, voltage compensation on a reference voltage signal applied to the corresponding pixel circuit according to the compensation voltage corresponding to the pixel circuit when the compensation voltage lies out of a preset range.

權(quán)利要求

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