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Patent Searching and Data


Title:
METHOD FOR DETECTING PIXEL CIRCUIT, METHOD FOR DRIVING DISPLAY PANEL, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/076134
Kind Code:
A1
Abstract:
A method for detecting a pixel circuit, a method for driving a display panel, and a display device (10). The pixel circuit comprises a drive transistor (T3). The method for detecting the pixel circuit comprises: apply a first data voltage (Vd1) to a gate of the drive transistor (T3) in a first charge cycle, obtain a first sensing voltage (Vs1) at a first electrode of the drive transistor (T3) within a first duration after the first data voltage (Vd1) is applied, and determine whether the first sensing voltage (Vs1) is equal to a reference sensing voltage (Vsr); the reference sensing voltage (Vsr) is obtained in a reference charge cycle; apply a first duration after the reference data voltage (Vdr) is applied to the gate of the drive transistor (T3) in the reference charge cycle, and obtain the reference sensing voltage (Vsr) at the first electrode of the drive transistor (T3) before cut-off of the drive transistor (T3), and the first data voltage (Vd1) is equal to the reference data voltage (Vdr); detection of threshold features of the pixel circuit can be achieved in the power-on state, so as to improve the threshold compensation effect and luminance uniformity.

Inventors:
SONG DANNA (CN)
LIN YI CHENG (CN)
XU PAN (CN)
WU ZHONGYUAN (CN)
Application Number:
PCT/CN2018/102260
Publication Date:
April 25, 2019
Filing Date:
August 24, 2018
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/32
Foreign References:
CN106856086A2017-06-16
CN106782326A2017-05-31
CN105374320A2016-03-02
CN104715721A2015-06-17
CN106328062A2017-01-11
CN102110412A2011-06-29
CN107093403A2017-08-25
KR20170080935A2017-07-11
CN201710984042A2017-10-20
Other References:
See also references of EP 3699898A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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