Light guide plate for display device

Details Light guide plate for display device Light guide plate for display device

2005-11-24

2011-10-25

May, Robert (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S620000, C362S626000

Reexamination Certificate

active

08042983

ABSTRACT:
A light guide plate according to the present invention includes an incident plane into which a light flux from a light source is incident, and a plurality of prisms having reflection planes reflecting the light flux incident from the incident plane, wherein the reflection planes of the plurality of prisms are extended to cross in a direction in which the light flux from the light source incident into the incident plane travels, and of the reflection planes of the plurality of prisms, the reflection plane of at least one prism closest to the incident plane is formed in a recess shape with respect to the incident plane. Thereby nonuniformity of backlight illumination can be improved and a display device can be uniformly and efficiently illuminated.

REFERENCES:
patent: 6582095 (2003-06-01), Toyoda
patent: 6731355 (2004-05-01), Miyashita
patent: 2003/0058633 (2003-03-01), Suzuki
patent: 6250025 (1994-09-01), None
patent: 200135222 (2001-02-01), None
patent: 2004327096 (2004-11-01), None

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