Method for manufacturing lighting device, image display, liquid crystal monitor, liquid crystal television, liquid crystal information terminal, and light guide plate
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United States of America Patent
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Apr 28, 2009
Grant Date -
Nov 13, 2003
app pub date -
Jul 25, 2001
filing date -
Jul 31, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is directed to provide, for example, a lighting device and an image display, with which higher luminance and others can be achieved. In order to achieve this object, an image display of the present invention is formed in a lighting device (100) including a light source (102), a light guiding plate (103) that is disposed in such a manner that the light from the light source (102) is allowed to enter it through an end face (103a) thereof, and a reflecting surface (105) that is opposed to one major surface (103c) of the light guiding plate (103), wherein the one major surface (103c) of the light guiding plate (103) has a constant scattering layer (121) formed thereon which is adapted to transmit the incident light to scatter it at a predetermined rate, and the constant scattering layer (121) has a distribution and scattering structure (114) formed there on which is adapted to transmit the incident light to scatter it at a percentage that varies according to the distance from the above-mentioned light source (102).
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