Liquid crystal display device viewable from both sides using...

Details Liquid crystal display device viewable from both sides using... Liquid crystal display device viewable from both sides using...

2006-11-28

2006-11-28

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S096000, C349S098000, C349S114000, C349S115000

Reexamination Certificate

active

07142270

ABSTRACT:
To realize at low cost a liquid crystal display device which is thin and in which display on a single liquid crystal panel can be viewed in both ways, from the front and from the back. The liquid crystal display device includes a liquid crystal panel in which a liquid crystal layer is interposed between opposing substrates, and a polarizer and a reflection-polarizing plate provided so as to interpose the liquid crystal panel therebetween. The reflection axis of the reflection-polarizing plate is set in the same direction as a polarization direction of light that exits the liquid crystal panel after its polarization direction is changed in the liquid crystal layer, or a polarization direction of light that exits the liquid crystal panel without being changed in polarization direction in the liquid crystal layer. Due to this arrangement, a liquid crystal display device can be provided which is thin and capable of displaying on both the front side and the back side.

REFERENCES:
patent: 6542208 (2003-04-01), Akiyama
patent: 6809782 (2004-10-01), Kawamoto et al.
patent: 2002/0089622 (2002-07-01), Kuroiwa et al.
patent: 2004/0027513 (2004-02-01), Yuuki et al.

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