Title:
PIXEL CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/134459
Kind Code:
A1
Abstract:
A pixel circuit and a driving method therefor, and a display device. Said pixel circuit (10) comprises a driving circuit (100), a data writing circuit (200), a compensation and reset circuit (300), and a memory circuit (900). The driving circuit (100) comprises a control terminal (130), a first terminal (110), and a second terminal (120), and is configured to control a driving current for driving a light-emitting element (600) to emit light. The data writing circuit (200) is connected to the control terminal (130) of the driving circuit (100), and is configured to write a data signal into the control terminal (130) of the driving circuit (100) in response to a scanning signal. The compensation and reset circuit (300) is connected to the control terminal (130) of the driving circuit (100) and a reset voltage terminal (Vref), and is configured to electrically connect the control terminal (130) and the second terminal (120) of the driving circuit (100) and apply a reset voltage to the control terminal (130) of the driving circuit (100) in response to a compensation signal. The memory circuit (900) is configured to store a written data signal, a threshold voltage, and adjusting the voltage of the control terminal (130) of the driving circuit (100) in a coupled manner. Said pixel circuit can alleviate the problem of short-term residual image and compensate for the threshold voltage of the driving circuit.
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Inventors:
YANG CHENGCHUNG (CN)
GAO XUELING (CN)
PENG KUANJUN (CN)
GAO XUELING (CN)
PENG KUANJUN (CN)
Application Number:
PCT/CN2018/116769
Publication Date:
July 11, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/3233
Foreign References:
| CN108257549A | 2018-07-06 | |||
| CN105632404A | 2016-06-01 | |||
| CN103035202A | 2013-04-10 | |||
| US20170124941A1 | 2017-05-04 | |||
| CN107346654A | 2017-11-14 | |||
| CN201810012007A | 2018-01-05 |
Other References:
See also references of EP 3736800A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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