Invention Application
- Patent Title: ADVANCED LIGHT EXTRACTION STRUCTURE
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Application No.: US16685862Application Date: 2019-11-15
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Publication No.: US20200083485A1Publication Date: 2020-03-12
- Inventor: Zhiyun CHEN , Gregory D. COOPER
- Applicant: PIXELLIGENT TECHNOLOGIES, LLC
- Main IPC: H01L51/52
- IPC: H01L51/52 ; G02B3/00 ; H01L27/32

Abstract:
Light-emitting devices and methods of making the same are described whereby lenses of any array include a material with a higher refractive index than an encapsulation layer of a substrate layer, the refractive index of the material being in a range of greater than 1.7 to 1.9 at 400 nm. The material forming the lenses includes nanocomposite comprised of inorganic nanocrystals and a polymeric matrix, wherein the nanocrystals are selected from the group consisting of ZrO2, ZnO, MgO, HfO2, NbO5, Ta2O5 and Y2O3. A 3-4 micron thick sample of the nanocomposite has an optical transmittance of at least 80% over a range of 440 nm to 800 nm.
Public/Granted literature
- US11355737B2 Advanced light extraction structure Public/Granted day:2022-06-07
Information query
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