LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: YAMAMOTO TSUNENORI, YONETANI SHIN, ONO KIKUO, HIRAKATA JUNICHI, NAKAYOSHI YOSHIAKI
• Format: Patent
• Language: English
• Published: 05.07.2012
• 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 enhance image display performance of a liquid crystal display device driving a liquid crystal layer by a lateral electric field method.SOLUTION: In a pixel region, a liquid crystal display device has: a plurality of first transparent conductive films PX being disposed apart from one another and having line shapes; a second transparent conductive film CT overlapping with the plurality of first transparent conductive films PX through an insulating film and having a flat plate shape; and a third transparent conductive film ITO1 being disposed between a drain signal line DL and a liquid crystal LC and being electrically separated from the first transparent conductive films PX. The first transparent conductive films PX are connected to a thin film transistor TFT and supplied with pixel potential. The second transparent conductive film CT is supplied with a counter potential being a reference potential.