Optical film and liquid crystal display device having...

Details Optical film and liquid crystal display device having... Optical film and liquid crystal display device having...

2005-05-03

2005-05-03

Flynn, Nathan J. (Department: 2826)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S118000, C349S129000, C349S143000, C349S178000, C349S099000, C349S130000, C349S137000

Reexamination Certificate

active

06888598

ABSTRACT:
A liquid crystal display device includes an upper substrate and a lower substrate facing and spaced apart from each other; an upper orientation film on an inner surface of the upper substrate; a lower orientation film on an inner surface of the lower substrate; a liquid crystal layer interposed between the upper and lower orientation films; an upper polarizing plate on an outer surface of the upper substrate; a lower polarizing plate on an outer surface of the lower substrate; and at least one compensation film disposed between the upper substrate and the upper polarizing plate or between the lower substrate and the lower polarizing plate. In the typical IPS-LCD device with a wide viewing angle, since the metallic black matrix of the upper substrate affects the voltage between the common and pixel electrodes, the black matrix is made of resin and cannot be formed with a bent portion because of the limits of the processing technology. Therefore, the typical IPS-LCD device has a limit for effective realization and a low aperture ratio.

REFERENCES:
patent: 5504603 (1996-04-01), Winker et al.
patent: 5589963 (1996-12-01), Gunning
patent: 5612801 (1997-03-01), Winker
patent: 5956110 (1999-09-01), Fujita et al.
patent: 6181400 (2001-01-01), Yang et al.
patent: 6266114 (2001-07-01), Skarohlid
patent: 20020021400 (2002-02-01), Lyu et al.
patent: 20020030780 (2002-03-01), Nishida et al.

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