LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREFOR

WIPO Patent Application WO/2011/055584

A1

Disclosed is a liquid crystal display device provided with a monolithic gate driver, wherein residual charge in a pixel formation portion can be rapidly eliminated when the power is turned off. In a bistable circuit which constitutes a shift register in a gate driver (24), a thin-film transistor having a drain terminal connected to a gate bus line, a source terminal connected to a reference potential line for transmitting a reference potential (H_SIG_VSS), and a gate terminal to which a clock signal (HCK_1, HCK_2) for operating the shift register is given is provided. When a power OFF detection unit (17) detects the cutoff of the supply of power-supply voltage (PW) from the outside, the clock signal (HCK_1, HCK_2) is driven high to turn the thin-film transistor on, and a reference potential switching circuit (19) switches the reference potential (H_SIG_VSS) from a gate off potential (VGL) to a gate on potential (VGH).

JP4585088	Active matrix type liquid crystal display device and its driving method
JPS63155356	DOCUMENT EDITING DEVICE
JP5154413	Display panel drive circuit, display device

MORII HIDEKI
IWAMOTO AKIHISA
MIZUNAGA TAKAYUKI
OHTA YUUKI

PCT/JP2010/064559

May 12, 2011

August 27, 2010

Click for automatic bibliography generation  

SHARP KK (JP)
MORII HIDEKI
IWAMOTO AKIHISA
MIZUNAGA TAKAYUKI
OHTA YUUKI

G09G3/36; G02F1/133; G09G3/20

WO2009104307A1	2009-08-27
WO2007007768A1	2007-01-18

JP2002215099A	2002-07-31
JP2007094016A	2007-04-12
JP2004045785A	2004-02-12
JP2007011346A	2007-01-18

SHIMADA, AKIHIRO (JP)
Akihiro Shimada (JP)

View/Download PDF      PDF Help

Previous Patent: INDICATOR INSTRUMENT

Next Patent: ELECTRIC CYLINDER CONTROL METHOD AND ELECTRIC CYLINDER CONTROL SYSTEM