Backlight unit and display apparatus

Details Backlight unit and display apparatus Backlight unit and display apparatus

2008-06-19

2010-11-30

Bruce, David V (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S606000

Reexamination Certificate

active

07841760

ABSTRACT:
A backlight unit includes a light guide panel to guide entering light, a light source disposed on at least one side of the light guide panel to emit light, and a reflecting sheet disposed on a surface of the light guide panel to reflect the entering light toward a light emitting plane of the light guide panel, and includes a plurality of reflecting areas which have different reflectance, where a reflecting area of the plurality of reflecting areas which encounters a relatively large amount of the entering light has a higher reflectance than that of a reflecting area of the plurality of reflecting areas which encounters a relatively small amount of the entering light.

REFERENCES:
patent: 5408388 (1995-04-01), Kobayashi et al.
patent: 5949505 (1999-09-01), Funamoto et al.
patent: 7088333 (2006-08-01), Manabe et al.
patent: 7270463 (2007-09-01), Yasuda et al.
patent: 2004/0071436 (2004-04-01), Kwon
patent: 7-333444 (1995-12-01), None
patent: 11-174448 (1999-07-01), None
patent: 2004-72743 (2004-08-01), None
European Search Report issued Dec. 9, 2009 in EP Application No. 08167358.4.

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