LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: KOBASHI YUTAKA, TAJIRI KENICHI, KIYA HIROSHI, YOKOO NOBUHIKO
• Format: Patent
• Language: English
• Published: 07.04.2011
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a liquid crystal display device which is hard to cause image persistence and flicker in re-driving even when causing sudden power source disconnection state such as battery omission. SOLUTION: The liquid crystal display device includes: a gate potential-generating circuit 18 generating a selection potential VDD and a non-selection potential VBB; and a gate control circuit 13 supplying the selection potential VDD or the non-selection potential VBB to a pixel electrode through a scanning line and a TFT by switching them. Between the gate potential-generating circuit 18 and the gate control circuit 13, a voltage control circuit 19A, which includes: a short circuit resistance Rs connected between the selection potential supply line 28 and a non-selection potential input terminal 13b of the gate control circuit 13; and a N channel-type thin film transistor NTFT intercepting connection of a non-selection potential supply line 29 and the non-selection potential input terminal end 13b of the gate control circuit 13 based on a power source disconnection signal DISCHARGE. COPYRIGHT: (C)2011,JPO&INPIT