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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Details

C349S098000

Reexamination Certificate

active

10505857

ABSTRACT:
The present invention provides a liquid crystal display device that requires a reduced power consumption, which shows improved response speed and improved viewing angle properties, and that can give high-quality image display at low power consumption, and the liquid crystal display device of the present invention comprises a bend orientation mode liquid crystal cell using a low-temperature polysilicon TFT; and two polarizing plates disposed on both sides of the liquid crystal cell respectively, wherein at least one of the two polarizing plates is an elliptically polarizing plate comprising: a transparent protective layer; a polarizing layer; a transparent support; and an optically anisotropic layer comprising a discotic compound, in this order from outside of the liquid crystal cell, an inclination angle between the disc plane of the discotic compound and the transparent support plane is within a range of 25 to 35 degrees on the average, and the optically anisotropic layer has a Re1retardation value measured in front of the face of 25 to 50 nm.

REFERENCES:
patent: 5528400 (1996-06-01), Arakawa
patent: 6064457 (2000-05-01), Aminaka
patent: 6162654 (2000-12-01), Kawabe
patent: 2001/0030723 (2001-10-01), Koma
patent: 0926533 (1999-06-01), None
patent: 1156349 (2001-11-01), None

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