Light-emitting device with brightness enhancing layer

Illumination – With polarizer

Reexamination Certificate

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Details

C362S293000, C362S231000, C362S247000, C362S240000

Reexamination Certificate

active

07942537

ABSTRACT:
A brightness enhancing means (5), comprising a collimating means (6) having a receiving area (61), an output area (62) being larger than said receiving area (61), and sidewalls (63) at least partially extending between said receiving and output areas, is provided. At least a portion of the sidewalls (63) of said collimating means (6) comprises a first filter being arranged to reflect light of a first light property, which light is received via said receiving area (61) of said first collimating means (6), towards said output area (62) of said first collimating means (6), wherein said first filter is a dichroic filter or a polarization filter.

REFERENCES:
patent: 6271902 (2001-08-01), Ogura
patent: 6310672 (2001-10-01), Koike
patent: 6318863 (2001-11-01), Tiao et al.
patent: 6527411 (2003-03-01), Sayers
patent: 6654082 (2003-11-01), Sohda
patent: 2004/0218390 (2004-11-01), Holman
patent: 2005/0002204 (2005-01-01), Lin
patent: 2005/0002205 (2005-01-01), Yu
patent: 2005/0047135 (2005-03-01), Rhoads
patent: 2007/0252923 (2007-11-01), Hwang et al.
patent: 1439412 (2004-07-01), None
patent: 2004014365 (2004-01-01), None
patent: 0247915 (2002-06-01), None

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