Method of forming light-scattering dots inside the diffusion plate and light guide plate by laser engraving
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United States of America Patent
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Issued Date -
Mar 12, 2009
app pub date -
Feb 4, 2008
filing date -
Sep 11, 2007
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Abandoned
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Abstract
The present invention discloses a method of forming internal scattering pattern in the diffusion plate and light guide plate used in backlight module by laser engraving. In the present invention, the distribution and density of the engraved dots can be controlled and modulated depending on the position of the light source and the distribution of luminance to obtain higher luminance and better luminance uniformity.
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