Title:
DISPLAY DRIVE CIRCUIT, DRIVE METHOD THEREOF, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/185974
Kind Code:
A1
Abstract:
A display drive circuit, drive method thereof, and display device. A voltage detection circuit (300) is added to an existing display drive circuit, and the voltage detection circuit (300) determines, according to a standard reference voltage signal outputted by a logic circuit (200), whether a reference voltage signal outputted by a power supply management circuit (100) is abnormal. If the reference voltage signal is determined to be abnormal, the power supply management circuit (100) is controlled to stop outputting the reference voltage signal, such that the power supply management circuit (100) is in a static mode, and therefore, a display panel is in a constant white or constant black mode. The present invention prevents potential conditions in which a gate drive control signal not matching a voltage required by a shift register is inputted into the shift register of a display panel, and further prevents product anomalies of an assembled display caused by a display drive circuit outputting a signal not matching a display panel.
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Inventors:
ZHENG LIANGLIANG (CN)
JIN TINGTING (CN)
JIN TINGTING (CN)
Application Number:
PCT/CN2017/080077
Publication Date:
November 02, 2017
Filing Date:
April 11, 2017
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI BOE OPTOELECTRONICS TECH (CN)
HEFEI BOE OPTOELECTRONICS TECH (CN)
International Classes:
G09G3/20
Foreign References:
| CN105679230A | 2016-06-15 | |||
| CN101383129A | 2009-03-11 | |||
| CN104331141A | 2015-02-04 | |||
| CN105304050A | 2016-02-03 | |||
| CN104093257A | 2014-10-08 | |||
| US20100141633A1 | 2010-06-10 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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