Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ying Geng0
Babak Amirsolaimani0
Date of Patent
May 4, 2021
0Patent Application Number
162684770
Date Filed
February 5, 2019
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
An optical film fabrication method, an optical film and a head-mounted display are provided. The optical film fabrication method comprises: providing a substrate having a curved surface; dispensing a photo-alignment (PAM) layer on the curved surface of the substrate and exposing the PAM layer to spatially-uniformly polarized light; dispensing a birefringent material layer on the PAM layer; and curing the birefringent material layer to form a birefringent film on the curved surface. An optic axis orientation of birefringent material molecules in the birefringent film are spatially uniform across the birefringent film.
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