Title:
PIXEL CIRCUIT, DRIVING METHOD THEREOF, DISPLAY PANEL, AND DISPLAY
Document Type and Number:
WIPO Patent Application WO/2018/120701
Kind Code:
A1
Abstract:
A pixel circuit, a driving method thereof, a display panel, and a display are provided. The pixel circuit comprises: a charging module (01), a driving module (02), a compensation module (03), an adjustment module (04), and a light emitting device (OLED). In a charging phase, the charging module (01) charges a first node (P1) and a second node (P2). In a compensation phase, the compensation module (03) performs threshold voltage compensation on a third node (P3). In an adjustment phase, the adjustment module (04) adjusts an electric potential of the third node (P3). In a light emitting phase, the driving module (02) controlled by the third node (P3) drives, by means of a first power supply signal (Vdd), the light emitting device (OLED) to emit light. Therefore, a light emitting function of the light emitting device (OLED) is implemented. In addition, the threshold voltage compensation is performed, in the compensation phase, on the third node (P3) controlling the driving module (02), preventing a threshold voltage change of the driving module (02) from affecting the brightness of the light emitting device (OLED), improving evenness of the brightness of the light emitting device (OLED), and thus ensuring image display quality.
Inventors:
JIANG PENG (CN)
YANG HAIPENG (CN)
DAI KE (CN)
YOON YONG JUN (CN)
YANG HAIPENG (CN)
DAI KE (CN)
YOON YONG JUN (CN)
Application Number:
PCT/CN2017/090802
Publication Date:
July 05, 2018
Filing Date:
June 29, 2017
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO LTD (CN)
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO LTD (CN)
International Classes:
G09G3/3258
Foreign References:
| CN106782331A | 2017-05-31 | |||
| CN206301582U | 2017-07-04 | |||
| CN102654972A | 2012-09-05 | |||
| CN104157234A | 2014-11-19 | |||
| CN104143313A | 2014-11-12 | |||
| CN103680393A | 2014-03-26 | |||
| CN104021754A | 2014-09-03 | |||
| JP2005195756A | 2005-07-21 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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