Liquid crystal display device

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

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C349S096000, C349S117000

Reexamination Certificate

active

07932975

ABSTRACT:
A liquid crystal display device includes a reflective liquid crystal panel (20) having a liquid crystal panel polarization plate (22), a polarization plate (32) provided on a front surface side of the polarization plate (22) with its absorption axis in parallel with an absorption axis of the polarization plate (22), and a negative C plate (31) provided between the liquid crystal panel polarization plate (22) and the polarization plate (32). The negative C plate (31) sets a direction in which viewing limitation is carried out. Thus, it is possible to provide the liquid crystal display device in which a viewing angle can be narrowed by freely setting, in the reflective liquid crystal panel, the direction in which the viewing limitation should be carried out.

REFERENCES:
patent: 6433845 (2002-08-01), Suzuki et al.
patent: 7230663 (2007-06-01), Wu et al.
patent: 2004/0252258 (2004-12-01), Matsushima
patent: 2006/0103782 (2006-05-01), Adachi et al.
patent: 2006/0146405 (2006-07-01), Macmaster
patent: 2007/0036917 (2007-02-01), Hirakata
patent: 1 679 545 (2006-07-01), None
patent: 10-268251 (1998-10-01), None
patent: 2004-333830 (2004-11-01), None
patent: 2007-047697 (2007-02-01), None
U.S. Appl. No. 12/674,032, filed Feb. 18, 2010, entitled “Liquid Crystal Display Device”.
International Search Report for PCT/JP2007/063439, mailed Oct. 16, 2007.

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