Patent ID: 6256083
Filing Date: 2001-07-03
Classification: G02F,H04N

Abstract:
A liquid crystal display apparatus, comprising:an optical source system for emitting projection light;a liquid crystal display portion, arranged to receive the projection light from said optical source system and to generate a projection picture depending upon a driver signal;an optical projection system, including a first optical element which receives a light emitted from said liquid crystal display portion, arranged to project the light emitted from said liquid crystal display portion towards a projection object;wherein said liquid crystal display portion comprises:a liquid crystal display element for generating the picture;an incident side polarizing element positioned at an incident side of said liquid crystal display element;an exit side polarizing element positioned at an exit side of said liquid crystal display element;a holding member arranged to hold at least the liquid crystal display element, the exit side polarizing element and said first optical element; anda cooling medium:wherein either of said incident side polarizing element or said liquid crystal display element, said first optical element and said holding member define a space between said liquid crystal display element and said first optical element, and said cooling medium is filled up within said space so that said cooling medium contacts an entire light transmitting surface of at least one of said liquid crystal display element and said exit side polarizing element.