Liquid crystal display device having a light path changing...

Details Liquid crystal display device having a light path changing... Liquid crystal display device having a light path changing...

2008-01-29

2008-01-29

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

Reexamination Certificate

active

07324178

ABSTRACT:
Disclosed is a liquid crystal display device capable of improving a viewing angle thereof while reducing a gray scale inversion. The liquid crystal display device has a porous film aligned on a liquid crystal display panel and having a plurality of pores. The porous film has sidewalls defined by the pores and reflecting a part of light exited from the liquid crystal display panel. That is, the sidewalls reflect a first group of light, which has relatively higher luminance by passing through a short axis of liquid crystal, towards a second group of light having a relatively lower luminance by passing through a long axis of liquid crystal. Accordingly, the viewing angle of the liquid crystal display device is expanded and the gray scale inversion is reduced.

REFERENCES:
patent: 5473450 (1995-12-01), Yamada et al.
patent: 6642976 (2003-11-01), Umemoto et al.
patent: 06 77 768 (1995-10-01), None
patent: 1 139 013 (2001-10-01), None
patent: 2 358 512 (2001-07-01), None

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