Title:
PIXEL CIRCUIT UNIT AND DRIVING METHOD, AND DISPLAY PANEL AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/196925
Kind Code:
A1
Abstract:
A pixel circuit unit (01) and a driving method, and a display panel and a display apparatus. The pixel circuit unit (01) comprises a plurality of pixel drive circuits (10) and a voltage control circuit (20), wherein the voltage control circuit (20) comprises a first end and a second end, and the first end of the voltage control circuit (20) is connected to a first voltage end (ELVDD) to receive a first power supply voltage provided by the first voltage end (ELVDD); each of the pixel drive circuits (10) comprises a light-emitting drive circuit (101), wherein the light-emitting drive circuit (101) comprises a power supply voltage receiving end and a control end, the power supply voltage receiving end of the light-emitting drive circuit (101) of each of the pixel drive circuits (10) is electrically connected to the second end of the voltage control circuit (20), such that the power supply voltage receiving end of the light-emitting drive circuit (101) of each of the pixel drive circuits (10) can receive the first power supply voltage; and the voltage control circuit (20) is configured to be turned off in a data voltage write-in stage (DAT_IN,DAT_IN'), such that the power supply voltage receiving end of the light-emitting drive circuit (101) of each of the pixel drive circuits (10) does not receive the first power supply voltage in the data voltage write-in stage (DAT_IN,DAT_IN'). The pixel circuit unit (01) can improve the accuracy of a voltage written into a signal output end of the light-emitting drive circuit (101).
Inventors:
XU PAN (CN)
GAI CUILI (CN)
LIN YI CHENG (CN)
WANG LING (CN)
GAI CUILI (CN)
LIN YI CHENG (CN)
WANG LING (CN)
Application Number:
PCT/CN2019/082416
Publication Date:
October 17, 2019
Filing Date:
April 12, 2019
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/3208
Foreign References:
| CN108520716A | 2018-09-11 | |||
| CN203931451U | 2014-11-05 | |||
| CN203931451U | 2014-11-05 | |||
| CN106023893A | 2016-10-12 | |||
| CN107016964A | 2017-08-04 | |||
| CN107170408A | 2017-09-15 | |||
| US20180012550A1 | 2018-01-11 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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