Title:
PIXEL DRIVING CIRCUIT, DRIVING METHOD, AND DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2019/095505
Kind Code:
A1
Abstract:
A pixel driving circuit, a driving method, and a display panel. The driving circuit comprises: a first switching transistor (T1), a second switching transistor (T2), and a third switching transistor (T3); a first capacitor (Cs1) and a second capacitor (Cs2); and a light-emitting device (OLED). A control end of the first switching transistor (T1) receives a first control signal (G1), an input end receives a data signal, and an output end is electrically connected to a first end of the first capacitor (Cs1) and a control end of the third switching transistor (T3); a control end of the second switching transistor (T2) receives a second control signal (G2), an input end receives a data signal (Vdata), and an output end is electrically connected to a second end of the first capacitor (Cs1) and a first end of the second capacitor (Cs2); an input end of the third switching transistor (T3) receives a positive power supply voltage (VDD), an output end is electrically connected to a second end of the second capacitor (Cs2) and a first end of the light-emitting device (OLED); a second end of the light-emitting device (OLED) is electrically connected to a negative power supply voltage (VSS). The use of the driving circuit can reduce input driving voltage, thereby improving the accuracy of an actual driving voltage.
Inventors:
JIN YUFENG (CN)
Application Number:
PCT/CN2017/117757
Publication Date:
May 23, 2019
Filing Date:
December 21, 2017
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
G09G3/3258
Foreign References:
| CN203376957U | 2014-01-01 | |||
| CN104680969A | 2015-06-03 | |||
| CN104167167A | 2014-11-26 | |||
| CN1601594A | 2005-03-30 | |||
| CN101908316A | 2010-12-08 | |||
| CN102982767A | 2013-03-20 | |||
| US20090243979A1 | 2009-10-01 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
Download PDF:
Previous Patent: JOY STICK DEVICE
Next Patent: MECHANICAL ARM AND SELF-GUIDING OPERATION METHOD FOR MECHANICAL ARM
Next Patent: MECHANICAL ARM AND SELF-GUIDING OPERATION METHOD FOR MECHANICAL ARM