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

專利號(hào)
US10867549B2
公開日期
2020-12-15
申請(qǐng)人
BOE Technology Group Co., Ltd.(CN Beijing)
發(fā)明人
Minghua Xuan
IPC分類
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

Optionally in the compensation device according to the embodiment of the disclosure, there may be one pixel circuit in each display sub-area, or there may be a plurality of pixel circuits, e.g., two, three, four, etc., pixel circuits, in each display sub-area, although the embodiment of the disclosure will not be limited thereto.

Optionally in the compensation device according to the embodiment of the disclosure, the display sub-areas can be of the same area size, or the display sub-areas can be of different area sizes. Of course, alternatively a part of the display sub-areas can be of the same area size, and the remaining display sub-areas can be of different area sizes, although the embodiment of the disclosure will not be limited thereto.

Optionally in the compensation device according to the embodiment of the disclosure, the compensating unit is configured to apply the reference voltage signal, to which the compensation voltage is added, to the corresponding pixel circuit.

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.

權(quán)利要求

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