| 摘要 |
PURPOSE: To provide this device with a structure which allows a high numerical aperture and high image quality to be compatible with each other in an IPS(in- plane switching) mode TFT(thin-film transistor) liquid crystal display device. CONSTITUTION: This device is comprised of plural pairs of common wiring 2 and gate wiring 3 extending in parallel with each other in one direction, plural source wiring 4 extending in parallel with each other in the direction crossing these common wiring and the gate lines, pixel opening parts 5 enclosed by the common wiring, gate wiring, and source wiring, and TFTs 6. In this case, a source electrode 11 and a drain electrode 12 are arranged in parallel with each other. Moreover, this device is to be structured, so that the width direction of a channel 13 formed of the parallel source electrodes 11 and drain electrodes 12 is parallel to the source wiring, and also, the channel width is about the same as the long side length of the pixel opening part.
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