Optical waveguide and near-eye display device
By setting one-dimensional and two-dimensional gratings in the light coupling area of the optical waveguide, and using the grating vector to guide the propagation of light, the problem of rainbow effect in optical waveguides is solved, and a better display effect is achieved.
CN122284006APending Publication Date: 2026-06-26ZHUHAI MOJIE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHUHAI MOJIE TECH CO LTD
- Filing Date
- 2026-05-14
- Publication Date
- 2026-06-26
Smart Images
Figure CN122284006A_ABST
Abstract
This application provides an optical waveguide and a near-eye display device. The optical waveguide includes a waveguide substrate, a light inlet region, and a light outlet region, which are disposed on the waveguide substrate. The light outlet region includes a first outlet sub-region and a second outlet sub-region. A one-dimensional grating is disposed on the first outlet sub-region, and a two-dimensional grating is disposed on the second outlet sub-region. A first projection of the first outlet sub-region on the waveguide substrate and a second projection of the second outlet sub-region on the waveguide substrate together form a preset shape of the light outlet region on the waveguide substrate. The sum of the areas of the first projection and the second projection is equal to the area of the preset shape, so as to reduce the rainbow effect and improve the display effect of the optical waveguide.
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