Backlight unit and liquid crystal display device

Details Backlight unit and liquid crystal display device Backlight unit and liquid crystal display device

2007-08-20

2010-06-15

Stahl, Mike (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C362S610000, C362S615000, C362S628000

Reexamination Certificate

active

07738053

ABSTRACT:
A backlight unit includes a light-source substrate having mounted thereon a plurality of light-emitting elements emitting illumination light; a light guide plate having a side surface with the light-source substrate attached thereto so as to receive the illumination light from the light-emitting elements, the light guide plate also having a first surface extending substantially perpendicular to the side surface, and a second surface; a reflective sheet attached to the first surface and reflecting the illumination light towards the second surface; and an optical sheet layer attached to the second surface and including a plurality of stacked optical sheets. The side surface has a reflective portion that reflects at least a part of the illumination light. The at least a part of the illumination light to be reflected at the reflective portion is incident on the reflective portion at an incidence angle equal to or above a critical angle.

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patent: 2008/0019150 (2008-01-01), Park et al.
patent: 2003-281924 (2003-10-01), None

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