Liquid crystal cells – elements and systems – Particular structure – Holder – support – frame – or housing
Reexamination Certificate
2005-12-14
2008-11-11
Nelms, David C. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Holder, support, frame, or housing
C349S005000
Reexamination Certificate
active
07450193
ABSTRACT:
There is provided a LCOS panel assembly of a projection system comprising: a LCOS panel; a panel support supporting the LCOS panel and coupled to the quad side; a quarter-wave plate provided at the front side of the LCOS panel to polarize light; a quarter-wave plate holder rotatably supported about the panel support at a state where the quarter-wave plate is coupled thereto; and adhesives interposed on a contact surface of the quarter-wave plate holder and the panel support, so that foreign substance is prevented from being injected on a optical path of the LCOS panel assembly of the projection system or image matching is prevented from being deteriorated.
REFERENCES:
patent: 6844979 (2005-01-01), Maki et al.
patent: 2006/0077314 (2006-04-01), Li et al.
Cheun Sung ok
Lee Moung Youb
Seok Ju Wan
Heyman John
Ked & Associates LLP
LG Electronics Inc.
Nelms David C.
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