Liquid crystal display element and projection display

• Main Author: TORIYAMA AKIKO,KADOTA HISASHI,HASHIMOTO MAKOTO,FUKUMOTO HIROHIDE,FUKUMORI HIROMI
• Format: Patent
• Language: English
• Published: 20.12.2006
• Subjects: 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; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

Disclosed is a high-quality liquid crystal display element which enables to prevent deterioration of a liquid crystal panel even when the liquid crystal panel used as a light bulb in a projector or the like is operated under high temperature, high humidity conditions. Also disclosed is a projection display using such a liquid crystal display element. The liquid crystal display element comprises a TFT array substrate (11) and a counter substrate (12) which are arranged opposite to each other at a certain distance and bonded together with a sealing material (15), and liquid crystal layer (16) interposed between the bonded substrates. The sealing material (15) contains a nonconductive filler having an average particle diameter of less than 0.5 mum, and a liquid crystal material used for the liquid crystal layer (16) has a refractive index anisotropy (Deltan) of not less than 0.16 at room temperature. A cell gap (d) which is the distance between the TFT array substrate (11) and the counter substrate (12) is not more than 3 mum.