Illumination – Edge lighted panel – Having additional panel emitting multiple wavelength light
Reexamination Certificate
2004-09-24
2008-08-19
O'Shea, Sandra (Department: 2875)
Illumination
Edge lighted panel
Having additional panel emitting multiple wavelength light
C362S019000, C362S231000, C362S608000, C362S613000
Reexamination Certificate
active
07413331
ABSTRACT:
The present invention relates to a backlight apparatus and a liquid crystal display apparatus, capable of realizing a backlight apparatus having high color reproductivity without color irregularities in a backlight apparatus having a LED device as its light source. In the optical unit61, there are disposed the dichroic mirror B which transmits green light Lg and red light Lr and reflects blue light Lb, the dichroic mirror G which transmits the light Lb and the light Lr and reflects the light Lg, and the dichroic mirror R which transmits the light Lb and the light Lg and reflects the light Lr, and they transmit or reflect the light emitted from the LED devices11B,11G and11R to mix to form the white light Lw. The light Lw formed by the dichroic mirrors B, G and R is entered to the light guiding plate62by the mirror performing a total reflection. Therefore, in the backlight apparatus having an LED device as its light source, it is possible to realize a backlight apparatus having high color reproductivity, without color irregularities.
REFERENCES:
patent: 5748828 (1998-05-01), Steiner et al.
patent: 5805244 (1998-09-01), Suh
patent: 6079841 (2000-06-01), Suzuki
patent: 6181391 (2001-01-01), Okita et al.
patent: 6469755 (2002-10-01), Adachi et al.
patent: 6976779 (2005-12-01), Ohtsuki et al.
patent: 7320531 (2008-01-01), West et al.
patent: 2003/0095399 (2003-05-01), Grenda
patent: 05-241103 (1993-09-01), None
patent: 08-248353 (1996-09-01), None
patent: 2001-237088 (2001-08-01), None
patent: 459142 (2001-10-01), None
patent: 468059 (2001-12-01), None
patent: WO 02/097324 (2002-12-01), None
Hatanaka Masato
Oku Takashi
Wada Haruaki
Yokota Kazuhiro
Cranson James W
Depke Robert J.
O'Shea Sandra
Rockey Depke & Lyons, LLC
Sony Corporation
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