Patterned Polarization Grating Polarization Converter
A liquid crystal display (LCD) backlight system includes: a light source configured to generate light; a patterned polarization grating polarization converter (PPG-PC) assembly configured to convert the generated light from a first polarization state to a second polarization state. The PPG-PC further includes: a patterned polarization grating (PPG) having a plurality of domains wherein the plurality of domains of the PPG include at least two different types of domains and wherein each domain of the PPG is configured to diffract incident light into first and second types of light beams corresponding to a first diffraction order; and a patterned retarder (PR) having a plurality of domains the plurality of domains of the PR including domains corresponding to areas where the first type of light beams output from the PPG and including domains corresponding to areas where the second type of light beams output from the PPG converge.
Countries or Regions:
US
Invention Code:
IP.PA.00609
Contact Us:
okt@ust.hk
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Category:
TAP - Microelectronics
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