Cholesteric liquid crystal color filter with protrusions and...

Details Cholesteric liquid crystal color filter with protrusions and... Cholesteric liquid crystal color filter with protrusions and...

2007-03-27

2007-03-27

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S115000, C349S187000

Reexamination Certificate

active

10026473

ABSTRACT:
A reflective cholesteric liquid crystal (CLC) display device has a cholesteric liquid crystal color filter in which a plurality of protrusions is formed on an upper portion of the cholesteric liquid crystal color filter to obtain a uniform luminance and a uniform color in a main viewing angle range. The reflective cholesteric liquid crystal display device includes a first substrate, an absorption layer on the first substrate, a cholesteric liquid crystal color filter on the absorption layer, the cholesteric liquid crystal color filter having a plurality of protrusions, an overcoat layer on the cholesteric liquid crystal color filter, a first electrode on the overcoat layer, a second substrate, a second electrode beneath the second substrate, a retardation layer on the second substrate, a polarizer on the retardation layer, and a liquid crystal layer between the first electrode and the second electrode.

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