Display device for increasing viewing angle

Details Display device for increasing viewing angle Display device for increasing viewing angle

2011-05-24

2011-05-24

Doan, Jennifer (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S056000, C349S084000, C349S117000, C349S121000

Reexamination Certificate

active

07948592

ABSTRACT:
A display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer is operated in a vertical alignment mode. The first optical unit includes a C-plate and a first polarization plate having a first absorption axis. The second optical unit includes a positive A-plate, a negative A-plate, and a second polarization plate having a second absorption axis substantially perpendicular to the first absorption axis. The positive A-plate and the negative A-plate may gather dispersed polarization states of a colored light.

REFERENCES:
patent: 4609256 (1986-09-01), Nakamura
patent: 6411355 (2002-06-01), Manabe et al.
patent: 1020070056055 (2007-05-01), None
patent: 1020070069090 (2007-07-01), None
patent: 100778167 (2007-11-01), None

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