Architecture for improving image sharpness in waveguide displays
A phase matching region with varying thickness or depth in waveguide combiners addresses phase discontinuity and wavefront aberration, enhancing image sharpness in augmented reality displays.
JP2026517732APending Publication Date: 2026-06-02APPLIED MATERIALS INC
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- APPLIED MATERIALS INC
- Filing Date
- 2024-04-26
- Publication Date
- 2026-06-02
Smart Images
Figure 2026517732000001_ABST
Abstract
The embodiments described provide a waveguide combiner with a phase matching region. The waveguide includes one or more grids. The one or more grids include a grid structure disposed on a waveguide substrate. A phase matching region is disposed between the one or more grids and the waveguide region on the waveguide substrate. The phase matching region includes a waveguide layer, which is a waveguide layer whose thickness changes from a first end to a second end, or a plurality of structures having depths between them. One or more of these depths are different from each other, or at least two or more of the plurality of structures have a first duty cycle different from the second duty cycle of the plurality of structures.
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