Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-07-05
2005-07-05
Kim, Robert H. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S118000
Reexamination Certificate
active
06914654
ABSTRACT:
An external electronically controlled illumination module utilizing polarizing beam splitters to split the light beam I from a projection lamp into two polarization states, selectively altering the state of each polarized light beam to reject a controlled portion of the light where the selectively altered beams are recombined and passed to the projection system optics.
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Valliath et al: “Design of hologram for brightness enhancement in color LCDs” 1998 SID International Symposium Digest Of Technical Papers. vol. 29, May 17, 1998, pp. 1139-1143.
Duong Thoi V.
Kim Robert H.
Koninklijke Philips Electronics , N.V.
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