Light guide plate, lighting apparatus and liquid crystal...

Details Light guide plate, lighting apparatus and liquid crystal... Light guide plate, lighting apparatus and liquid crystal...

2007-04-24

2007-04-24

Tso, Laura K. (Department: 2875)

Illumination

Edge lighted panel

Light guide

Reexamination Certificate

active

10992928

ABSTRACT:
A light guide plate includes at least one surface including a first region having relatively small surface roughness and a second region having relatively great surface roughness, which are adjacently formed. A boundary-blurring pattern composed of a plurality of surface roughness aspects is formed in a boundary part between the first region and the second region.

REFERENCES:
patent: 5178447 (1993-01-01), Murase et al.
patent: 5550676 (1996-08-01), Ohe et al.
patent: 5921651 (1999-07-01), Ishikawa
patent: 6024463 (2000-02-01), Ishikawa et al.
patent: 6280043 (2001-08-01), Ohkawa
patent: 10-188642 (1998-07-01), None
patent: 2002-169033 (2002-06-01), None
patent: 2003-39487 (2003-02-01), None

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