Title:
PIXEL DRIVING CIRCUIT, DISPLAY DEVICE AND PIXEL DRIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/156945
Kind Code:
A1
Abstract:
A pixel driving circuit, a display device and a pixel driving method, the pixel driving circuit comprising: a drive transistor (T1) connected in series with a light emitting device; a capacitive structure (C), wherein a first end thereof is connected to the gate of the drive transistor (T1), and a second end thereof is connected to the source of the drive transistor (T1); a charging circuit comprising at least a current source, used for charging the capacitor structure (C) in a charging phase, wherein in at least one period of the charging phase, the current intensity of a charging current for charging the capacitor structure (C) is greater than a current intensity of a target current, and after the charging phase is completed, the voltage difference between both ends of the capacitor structure (C) is a target voltage difference; the target voltage difference is: a gate-source voltage difference of the drive transistor (T1), when the light emitting device emits light at a set luminance in a light-emitting stage; the target current is: the current flowing through the drive transistor (T1), when the light emitting device emits light at the set luminance in the light-emitting stage.
Inventors:
HU ZUQUAN (CN)
Application Number:
PCT/CN2016/089922
Publication Date:
September 21, 2017
Filing Date:
July 13, 2016
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:
G09G3/3208
Foreign References:
| CN105632405A | 2016-06-01 | |||
| CN102708787A | 2012-10-03 | |||
| CN102708798A | 2012-10-03 | |||
| CN102708786A | 2012-10-03 | |||
| CN103280183A | 2013-09-04 | |||
| CN1606057A | 2005-04-13 | |||
| KR20070000831A | 2007-01-03 |
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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