Light guiding plate and backlight apparatus
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Jun 2, 2005
app pub date -
Oct 29, 2004
filing date -
Oct 31, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A light guiding plate includes: an X axis direction light distribution control section; and a diffuse reflection section. The X axis direction light distribution control section performs light distribution control by which the incident light is deflected such that a tilt of an X axis direction with respect to a normal direction approaches to zero, and outputted from the light emitting surface. A direction of the incident light is the X axis direction, a direction orthogonal to the X axis direction and parallel to the light emitting surface is a Y axis direction, and a direction vertical to the X axis direction and the Y axis direction is the normal direction. The diffuse reflection section reflects the guided incident light from the light incident surface to diffuse in the Y axis direction inside of the light guiding plate and guides to the X axis direction light distribution control section.
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