Polarizer to improve contrast for liquid crystal display...

Details Polarizer to improve contrast for liquid crystal display... Polarizer to improve contrast for liquid crystal display...

2005-10-18

2005-10-18

Shafer, Ricky D. (Department: 2872)

Optical: systems and elements

Polarization without modulation

With color filter

C359S490020, C359S601000, C359S614000, C349S096000

Reexamination Certificate

active

06956699

ABSTRACT:
A polarizer to improve contrast for LCD from down view angle is produced by laminating a triacetate cellulose (TAC) sheet on each side of a polyvinyl alcohol (PVA) sheet and further on the toppest triacetate cellulose (TAC) sheet applying a surface-treatment layer that is a protective film formed by black dye mixture to inhibit dark-state light leakage and improve the contrast for LCD from down view angle.

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