In-plane switching type liquid crystal display device

Abstract

A liquid crystal display device comprises a pair of substrates subjected to an aligning treatment in mutually parallel but opposite directions, a liquid crystal layer interposed between the pair of substrates, a first electrode bent into a “<” shape, and a second electrode formed via an insulating film with the first electrode. The first electrode comprises one linear section and another linear section that extend in directions that intersect the alignment treatment direction at different angles, a bent section that is provided at each end where the one linear section and the other linear section adjacent to each other and that extends in a direction that intersects the alignment treatment direction at an angle that is greater than each of the intersecting angles of the one linear section and the other linear section and the alignment treatment direction with respect to the alignment treatment directions.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a liquid crystal display device that controls the orientation of liquid crystal molecules using a transversal electric field.[0003]2. Description of the Related Art[0004]Known liquid crystal display devices include an In-plane Switching (IPS) type liquid crystal display device that controls the orientation of liquid crystal molecules using an electric field parallel to the substrates that constitute the liquid crystal display device.[0005]This liquid crystal display device comprises a pair of substrates arranged opposite each other at a predetermined gap, having been subjected to an aligning treatment in mutually parallel but opposite directions on each of the mutually opposed inner surfaces and, in the gap therebetween, a liquid crystal layer interposed substantially in parallel with the substrate surfaces, with the long axes of the liquid crystal molecules aligned in the direction of t...

AI Technical Summary

Problems solved by technology

However, in the In-plane Switching (IPS) type liquid crystal display device in which the plurality of electrodes of the first electrode are formed into a shape that is bent into a “<” shape, the problem arises that, when a strong electric field parallel to the substrates is generated, the orientation of the liquid crystal molecules within each pixel becomes non-uniform and, as a result of these pixels, display unevenness occurs.

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