白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

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

In the data write phase T2, the scan signal Scan at a low level controls the second switch transistor M2 and the fourth switch transistor M4 to be turned on. The second switch transistor M2 which is turned on provides the first terminal of the storage capacitor Cst with the data signal Vdata, so that voltage at the first terminal of the storage capacitor Cst is voltage Vdata of the data signal Vdata. The fourth switch transistor M4 is turned on so that the control electrode of the driver transistor M0 is communicated with the second electrode thereof to form a connected diode, so that the storage capacitor Cst is charged with the high-voltage signal VDD at the voltage Vdd(1) through the driver transistor M0 until voltage at the control electrode of the driver transistor M0 becomes Vdd(1)+Vth, where Vth is threshold voltage of the driver transistor M0.

權(quán)利要求

1
微信群二維碼
意見反饋