Light concentrating sheet, backlight unit including the...

Details Light concentrating sheet, backlight unit including the... Light concentrating sheet, backlight unit including the...

2008-10-16

2010-12-28

Kim, Richard H (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C362S607000, C362S620000

Reexamination Certificate

active

07859612

ABSTRACT:
A light concentrating sheet for a liquid crystal display module includes a first base film having flat inner and outer surfaces; a first light concentrating film on the first base film and having a first thermal expansion coefficient; a second light concentrating film on the first light concentrating film and having a second thermal expansion coefficient; and a second base film on the second light concentrating film and having flat inner and outer surfaces.

REFERENCES:
patent: 7440045 (2008-10-01), Huang et al.
patent: 2004/0114065 (2004-06-01), Yu et al.
patent: 2009/0180191 (2009-07-01), Yamada
patent: WO 2007/125803 (2007-08-01), None

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