Sony patents waveguide display parts with mixed shapes to guide light
Sony describes a component called an output coupling grating used in thin glass displays. It features groups of tiny structures on a base that vary in size, shape, or angle to help direct light out of the display.
In the filing’s own words
An (OCG) for a waveguide-based display comprises a base substrate and a plurality of unit cells arranged in groups on the base substrate. Unit cells of a first group each include a first photonic structure in a first orientation and having a first size and a first shape, and unit cells of a second group each include a second photonic structure in a second orientation and having a second size and a second shape. One or more of the first orientation, the first size, and the first shape of the first photonic structure are different than the second orientation, the second size, and the second shape of the second photonic structure.
What exactly they claim (claim 1)
1. An output coupling grating (OCG) for a waveguide-based display, comprising: a base substrate; and a plurality of unit cells arranged in groups on the base substrate, wherein unit cells of a first group each include a first photonic structure in a first orientation and having a first size and a first shape, wherein unit cells of a second group each include a second photonic structure in a second orientation and having a second size and a second shape, and wherein one or more of the first orientation, the first size, and the first shape of the first photonic structure are different than the second orientation, the second size, and the second shape of the second photonic structure.
Facts
- Company
- Sony (SONY GROUP CORPORATION)
- Official title
- OUTPUT COUPLING GRATINGS FOR WAVEGUIDE-BASED DISPLAYS
- Publication number
- US20260329087A1
- Application number
- 19110634
- Filed
- Sep 14, 2023
- Published
- Oct 22, 2026
- Inventors
- 3
- Claims
- 20
Classified under
G02B 27/0172 Physics & computingG02B 5/1819 Physics & computingG02B 5/1842 Physics & computingG02B 27/0081 Physics & computingG02B 2027/0178 Physics & computingMore from Sony in AR, VR & displays
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.