Light source device, display device, terminal device, and transparent/scattering state switching element
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United States of America Patent
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May 21, 2013
Grant Date -
Nov 22, 2007
app pub date -
May 17, 2007
filing date -
May 19, 2006
priority date (Note) -
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Abstract
A light source device has a transparent/scattering state switching element for switching the range of irradiation angles, and liquid crystal molecules and dichroic dye molecules are dispersed in a polymer matrix in the PDLC layer of the transparent/scattering state switching element. The range of irradiation angles can thereby be switched, and the color can be prevented from changing when the radiation angle is switched.
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