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AMOLED pixel driving circuit and pixel driving method that implements threshold voltage compensation by directly gaining threshold voltage of driving TFT

机译：通过直接获得驱动TFT的阈值电压来实现阈值电压补偿的AMOLED像素驱动电路和像素驱动方法

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摘要

The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes a 8T1C structure, comprising a first, a second, a third, a fourth, a fifth and a sixth, a seventh and an eighth thin film transistors (T1, T2, T3, T4, T5, T6, T7, T8), a capacitor (C1) and an organic light emitting diode (OLED). The AMOLED pixel driving circuit, by directly gaining the second thin film transistor (T2), i.e. the drive thin film transistor, can effectively compensate the threshold voltage of the drive thin film transistor and stabilize the current flowing through the organic light emitting diode (OLED) to ensure the uniform brightness of the organic light emitting diode (OLED) and improve the display effect of the pictures. The unnecessary irradiance of the organic light emitting diode (OLED) can be avoided to reduce the electrical power consumption.

机译：本发明提供了一种AMOLED像素驱动电路和像素驱动方法。 AMOLED像素驱动电路采用8T1C结构，包括第一，第二，第三，第四，第五和第六，第七和第八个薄膜晶体管（T 1， B> 2 ，T 3 ，T 4 ，T 5 ，T 6 ，T < B> 7 ，T 8 ），电容器（C 1 ）和有机发光二极管（OLED）。 AMOLED像素驱动电路通过直接获取第二薄膜晶体管（T 2 ），即驱动薄膜晶体管，可以有效补偿驱动薄膜晶体管的阈值电压，稳定电流通过有机发光二极管（OLED）来确保有机发光二极管（OLED）的均匀亮度并提高图片的显示效果。可以避免有机发光二极管（OLED）的不必要的辐照，以减少功耗。 展开▼

著录项

公开/公告号US9697775B2

专利类型

公开/公告日2017-07-04

原文格式PDF

申请/专利权人 SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.;
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申请/专利号US201514758561

发明设计人 XIAOLING WU;
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申请日2015-04-01

分类号G09G3/32;G09G3/3258;G09G3/3233;

国家 US

入库时间 2022-08-21 13:42:11

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2. 基于OTFT的实现阈值电压补偿的像素驱动电路及驱动方法 [P] . 中国专利： CN109256092A . 2019-01-22

3. AMOLED pixel driving circuit and pixel driving method with compensation of threshold voltage changes [P] . 美国专利： US9721507B2 . 2017-08-01

机译：具有阈值电压变化补偿的AMOLED像素驱动电路及像素驱动方法

4. Pixel driving circuit, display panel and pixel driving method that compensates for threshold voltage drift of a driving transistor [P] . 美国专利： US10360849B2 . 2019-07-23

机译：补偿驱动晶体管的阈值电压漂移的像素驱动电路，显示面板和像素驱动方法

5. Pixel driving circuit and display device having the same for eliminating improper image-displaying of OLED display resulting from drifting of threshold voltage of driving TFT [P] . US11037509B2 . 2021-06-15

机译：像素驱动电路和显示装置，其具有相同的用于消除OLED显示器的不正确图像显示，这是由于驱动TFT的阈值电压的漂移而产生的OLED显示器

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