Optical structure, display assembly, and display device
CN122935722APending Publication Date: 2026-10-16DISPELIX OY
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Patent Information
- Application Number
- CN202580020964.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-13
- Filing Date
- 2025-03-13
- Publication Date
- 2026-10-16
AI Technical Summary
Technical Problem
[0003]显示设备的可用性可能受到不期望地耦合到与显示设备的观看者或用户相反的方向的泄漏光的不利影响
✦ Generated by Eureka AI based on patent content.
Abstract
An optical structure (101) comprises a transparent waveguide (110) configured to guide light of a design wavelength therein, and an out-coupling structure (120) having a diffractive grating (130) configured to couple the light out of the waveguide. The diffractive grating (130) comprises a two-dimensional grating having a tilted configuration, and comprises at least two grating layers (135, 136) having a refractive index difference between adjacent grating layers.
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