US 6,556,260 B1Granted

Liquid crystal display apparatus

AssigneeHitachi, Ltd.

InventorsOsamu Itou, Shinichi Komura, Ikuo Hiyama, Masaya Adachi, Shoichi Hirota

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Abstract

A liquid crystal display apparatus featuring an excellent contrast ratio even though it is a reflection type liquid crystal display unit. The display apparatus includes a: liquid crystal layer; upper and lower substrates for interposing the liquid crystal layer therebetween; reflection plate for reflecting light which passes through the liquid crystal layer back to the liquid crystal layer; and light emitting element layer for emitting light to the liquid crystal layer, and wherein light emitting element layer is arranged above liquid crystal layer so as to surround the display portion of the liquid crystal layer. Further, the light emitting element layer is provided with a reflection layer for deflecting light emitted in the upper direction back to liquid crystal layer.

Claims21

Dependent claims

A liquid crystal display apparatus comprising a liquid crystal layer, upper and lower substrates interposing said liquid crystal layer therebetween, a pair of electrodes for applying an electric field to said liquid crystal layer, a reflection plate disposed beneath said liquid crystal layer for reflecting light coming from an upper direction of said liquid crystal layer and passing therethrough toward said liquid crystal layer, and a light emitting element layer for emitting light to said liquid crystal layer, wherein

said light emitting element layer is disposed in an upper direction of said liquid crystal layer so as to overlay a display portion of said liquid crystal layer,
one electrode of said pair of electrodes which is disposed on said lower substrate is divided into portions corresponding to each pixel of said liquid crystal layer, and an other electrode of said pair of electrodes which is disposed on said upper substrate is disposed between said one electrode and said light emitting element layer, and
said light emitting element layer has a stripe-like light emitting portion, disposed in a position corresponding to a gap between said divided portions of said one electrode.

Dependencies are inferred from the claim text.