The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Mar. 15, 2024
Jiaxing Uphoton Optoelectronics Technology Co., Ltd., Tongxiang, CN;
Abstract
A diffractive optical waveguide, a design method for the diffractive optical waveguide, and a display device are provided. The diffractive optical waveguide includes a waveguide substrate and a coupling-in grating. The coupling-in grating includes a plurality of coupling-in grating blocks arranged randomly and continuously, the plurality of coupling-in grating blocks have the same period, and at least two coupling-in grating blocks of the plurality of coupling-in grating blocks have different duty cycles; a first coupling-in grating block of the at least two coupling-in grating blocks includes a plurality of grating units, and each grating unit has a first duty cycle; a second coupling-in grating block of the at least two coupling-in grating blocks includes a plurality of grating units, and each grating unit has a second duty cycle; the first duty cycle is different from the second duty cycle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile