Patent ID: 6607277
Filing Date: 2003-08-19
Classification: G02F,G03B,H01L,H04N,H05B,Y02B

Abstract:
A projection display apparatus comprising:a base; at least one transmissive liquid crystal panel that is mounted on the base and displays an image; at least one light source unit replaceably mounted on the base and adjacent to one surface side of said liquid crystal panels, said at least one light source unit comprising: a light emitting unit provided with at least one organic EL element which includes: a reflecting electrode layer; a counter electrode layer facing said reflecting electrode layer; and a light emitting layer provided between said reflecting electrode layer and said counter electrode layer; and a cooling body for radiating heat generated by said light emitting unit, said cooling body comprising: a heat-dispersing unit for guiding and dispersing the heat; and a heat-conductive body provided between said reflecting electrode layer and said heat-dispersing unit; and a projection lens positioned opposite to said liquid crystal panel for enlarging the image displayed on said liquid crystal panel and projecting said image onto a screen.