Optical sheet and backlight unit using the same

Details Optical sheet and backlight unit using the same Optical sheet and backlight unit using the same

2009-11-25

2010-11-02

O'Shea, Sandra L (Department: 2875)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S019000, C362S355000, C362S558000, C362S606000, C359S599000

Reexamination Certificate

active

07824090

ABSTRACT:
An optical sheet and a backlight unit using the same are disclosed, in which deviation of a viewing angle is minimized to improve picture quality. The optical sheet includes a diffusion sheet provided with a plurality of diffusion patterns diffusing incident light in at least two directions to allow the incident light to have different strengths.

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patent: 2008/0284942 (2008-11-01), Mahama et al.
patent: 1930516 (2007-03-01), None
patent: 1 780 461 (2007-05-01), None

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