Title:
A GOA circuit and a display which are used for liquid crystal display
Document Type and Number:
Japanese Patent JP6208872
Kind Code:
B2
Abstract:
The present invention relates to a GOA circuit for liquid crystal displaying and a display device. The GOA circuit includes a plurality of cascaded GOA units and the nth-stage GOA unit includes a pull-up part (100), a key pull-down part (200), a pull-down holding part (300), a pull-up control part (400), and a boost capacitor (Cb). In operation, a nth-stage clock signal (CK(n)) and first and second clock signals (LC1 and LC2) are inputted. The frequencies of the first clock signal (LC1) and the second clock signal (LC2) are lower than the nth clock signal (CK(n)). The first clock signal (LC1) charging a first circuit point (P) and the second clock signal (LC2) charging a second circuit point (K) are alternately carried out. The present invention also provides a corresponding display device. The GOA circuit of the present invention precisely controls the voltage of the gate Q(n) that affects charging of a horizontal scan line by means of the low frequency clock signal and the high frequency clock signal, so as to ensure a stable output of the GOA charging signal.
Inventors:
Yu Hie
Lee Changhui
Rii Azusa
Lee Changhui
Rii Azusa
Application Number:
JP2016533627A
Publication Date:
October 04, 2017
Filing Date:
January 03, 2014
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
International Classes:
G09G3/36; G02F1/133; G09G3/20; G11C19/28
Domestic Patent References:
| JP2010250030A | ||||
| JP2010020279A |
Foreign References:
| CN102226940A | ||||
| WO2011055570A1 | ||||
| US20080266477 | ||||
| CN103310755A |
Attorney, Agent or Firm:
Yoneda Koichiro
Seishiro Suzuki
Seishiro Suzuki
Previous Patent: A preliminary treatment device and a method of a magnesium metal
Next Patent: WIRING HARNESS USING FLEXIBLE PRINTED CIRCUIT BOARD
Next Patent: WIRING HARNESS USING FLEXIBLE PRINTED CIRCUIT BOARD