Liquid crystal display and electronic device having same

Abstract

There is provided a CPA-type liquid crystal display device in which deterioration in display quality due to application of stress to a liquid crystal panel is suppressed.A liquid crystal display device according to the present invention includes a first substrate; a second substrate; and a liquid crystal layer of a vertical-alignment type provided therebetween. In each picture element region, a first electrode provided on a side of the first substrate facing the liquid crystal layer includes a solid portion formed of an electrically-conductive film and a non-solid portion in which no electrically-conductive film is formed. The solid portion includes a plurality of unit solid portions each of which is substantially surrounded by the non-solid portion, the plurality of unit solid portions being arranged at least along a first direction. When a voltage is applied, with an oblique electric field generated at an edge of the non-solid portion, the liquid crystal layer within the picture element region forms a liquid crystal domain on each unit solid portion, the liquid crystal domain taking a radially-inclined orientation. The length of the unit solid portion along the first direction is 70 μm or less.

Description

[0001]This application a continuation of U.S. patent application Ser. No. 11 / 596,595, filed Nov. 15, 2006, which is the US national phase of international application PCT / JP2005 / 008975 filed 17 May 2005, which designated the U.S. and claims priority to JP 2004-148273 filed 18 May 2004, the entire content of each of which is hereby incorporated by reference.TECHNICAL FIELD[0002]The present technology relates to a liquid crystal display device, and more particularly to a liquid crystal display device which has wide viewing angle characteristics and performs display with a high quality. The present technology also relates to an electronic apparatus incorporating such a liquid crystal display device.BACKGROUND ART[0003]In recent years, thin and light-weight liquid crystal display devices have been utilized as display devices for use in the displays of personal computers and the display sections of mobile information terminal devices. However, conventional twisted nematic type (TN type) ...

AI Technical Summary

Benefits of technology

The patent text discusses a problem with the current CPA method used in liquid crystal displays. If there is a large amount of stress applied to the panel, the orientation of the liquid crystal layer may become disturbed, causing degraded display quality. The inventor found that the length of time required to return to a normal orientation state is strongly correlated to the electrode structures in the CPA method. The objective of the technology is to provide a CPA-type liquid crystal display device that suppresses degraded display quality due to stress application and an electronic apparatus incorporating the same.

Problems solved by technology

Although the aforementioned CPA method realizes a stable orientation state, if a large stress is applied to the liquid crystal panel, the radially-inclined orientation in the liquid crystal layer may be disturbed.

If a long time is required for returning to a normal orientation state from the disturbed orientation state, there is a problem in that the viewer may perceive a degradation in display quality.

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