Direct light type backlight unit and color filterless liquid...

Details Direct light type backlight unit and color filterless liquid... Direct light type backlight unit and color filterless liquid...

2006-09-26

2011-11-01

Nguyen, Thanh-Nhan P (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S061000, C349S062000, C349S063000, C349S064000, C349S066000, C349S067000, C349S068000, C349S069000, C349S070000, C349S071000, C362S600000, C362S607000, C362S608000, C362S613000, C362S615000

Reexamination Certificate

active

08049838

ABSTRACT:
A direct light type backlight unit and a color filterless liquid crystal display (LCD) apparatus employing the same are provided. The direct light type backlight unit includes: a substrate; a plurality of light-emitting devices inclined with respect to the substrate; a diffraction grating which diffracts light emitted by the plurality of light-emitting devices at different angles according to wavelength and thereby separates the light into a plurality of color beams; and a plurality of reflectors, each reflector disposed at a side of one of the plurality of light-emitting devices, which reduces the range of angles of light incident on the diffraction grating.

REFERENCES:
patent: 6927812 (2005-08-01), Cho
patent: 7413330 (2008-08-01), Furukawa
patent: 7659951 (2010-02-01), Park
patent: 2001/0017774 (2001-08-01), Ito et al.
patent: 2003/0234896 (2003-12-01), Kim
patent: 2005/0041174 (2005-02-01), Numata et al.
patent: 2007/0047221 (2007-03-01), Park
patent: 2001-312916 (2001-11-01), None
patent: 2002-196329 (2002-07-01), None
patent: 2003-114412 (2003-04-01), None
Dutch Office Action dated Jun. 24, 2010 issued in counterpart Dutch Application No. 1032550.

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