Viewing angle compensation film and liquid crystal display

Details Viewing angle compensation film and liquid crystal display Viewing angle compensation film and liquid crystal display

2008-01-15

2008-01-15

Pert, Evan (Department: 2826)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S099000, C349S102000, C349S103000, C349S117000, C349S119000

Reexamination Certificate

active

07319500

ABSTRACT:
There is provided a liquid crystal display which exhibits preferable viewing angle characteristics even in a diagonal viewing angle. Optical retardation films of a first type that satisfy nx>ny, nzand optical retardation films of a second type that satisfy nx≅ny>nzare used, and a setting is made to satisfy Rp−t=2×(−0.08×RLC+58 nm+α) (α=±30 nm) and Rt−t=(1.05±0.05)×RLC−47 nm+β(−100 nm≦β≦47 nm) where Δnd represents a retardation RLCin the liquid crystal display; Rp−t represents the sum of retardations Rp in in-plane directions of a plurality of optical retardation films; and Rt−t represents the sum of retardations Rt in the direction of the thickness of the plurality of optical retardation films.

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