Liquid crystal display device and method for driving liquid crystal display device

• Main Authors: NAKATA JUN, INADA KEN
• Format: Patent
• Language: English
• Published: 04.11.2014
• 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

An object of the present invention is to provide a liquid crystal display device capable of improving a viewing angle, while not decreasing an aperture ratio and preventing an increase in electricity consumption. A liquid crystal display device (1) of the present invention includes an active matrix substrate including a plurality of drain electrodes (14) disposed in a matrix form, a counter substrate including a plurality of common electrodes, and a liquid crystal layer being sandwiched between the active matrix substrate and the counter substrate, each of the plurality of drain electrodes (14) having formed (i) a subpixel (16a) part facing a first common electrode (11) among the plurality of common electrodes, across the liquid crystal layer, and (ii) a subpixel (16b) part facing a second common electrode (12) among the plurality of common electrodes, across the liquid crystal layer. To the first common electrode (11), a first common electrode voltage (VC1) having a first center voltage (VCOMDC1) is applied, and to the second common electrode (12), a second common electrode voltage (VC2) having a second center voltage (VCOMDC2) different from the first center voltage is applied. The present invention is suitably used for televisions and portable phones.