Light guide plate including sub-scattering-dots

Details Light guide plate including sub-scattering-dots Light guide plate including sub-scattering-dots

2007-11-06

2007-11-06

Ward, John Anthony (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S626000, C362S331000, C362S339000

Reexamination Certificate

active

11021185

ABSTRACT:
A light guide plate (300) includes a light incidence surface (310) for receiving light beams, a light-emitting surface (320) for guiding light beams out of the light guide plate, and a bottom surface (330) reflecting and scattering light beams in directions toward the light-emitting surface. The bottom surface includes scattering-dots (341), and a predetermined region of the bottom surface also includes sub-scattering-dots (342). At least one sub-scattering-dot is disposed around each scattering-dot. The sub-scattering-dots are smaller than the scattering-dots. With this micro-configuration, intensities of light beams output from the light guide plate are uniform and bright.

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patent: 01219472.7 (2002-06-01), None
patent: 00805365.0 (2004-04-01), None

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