Light guide plate

Details Light guide plate Light guide plate

2006-08-03

2008-05-13

Quach-Lee, Y. My (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S623000, C362S625000

Reexamination Certificate

active

07371001

ABSTRACT:
A light guide plate includes a top surface serving as a light-emitting surface, a bottom surface serving as a reflecting surface, and a periphery having a first side surface serving as an incident surface and a second side surface opposite the first side surface. The bottom surface is provided with reflecting prisms successively arranged in a direction from the first to second side surface. Each reflecting prism has a first slant surface and a second slant surface succeeding to the first slant surface. The first slant surface extends toward the top surface in a direction from the first side surface toward the second side surface and the second slant surface extends away from the top surface in the same direction. The second slant surface is formed such that a large part of light reflected back from the second side surface toward the first side surface is emitted from an area of the top surface near the first side surface.

REFERENCES:
patent: 5420761 (1995-05-01), DuNah et al.
patent: 5485291 (1996-01-01), Qiao et al.
patent: 6256447 (2001-07-01), Laine
patent: 2001/0013976 (2001-08-01), Hirayama et al.
patent: 2002-042529 (2002-02-01), None

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