US 2026/0153741 A1 · OPTICAL WAVEGUIDE STRUCTURE AND NEAR-EYE DISPLAY DEVICE

Abstract

An optical waveguide structure includes: a waveguide used to guide image light and including a first surface and a second surface opposite to the first surface; a coupling-out grating on the first surface and used to couple the image light out of the waveguide; and a first light modulation element on the second surface and on light paths of the image light and ambient light, the first light modulation element including a first light-transmitting surface including a first light modulation region and a second light modulation region connected to the first light modulation region, the first light modulation region being used to adjust a focus of the ambient light, and the second light modulation region being used to adjust a focus of the image light; wherein the first light modulation region and the second light modulation region have different curvatures. A near-eye display device is also provided.

Claims20

Dependent claims

An optical waveguide structure comprising:

a waveguide configured to guide image light and comprising a first surface and a second surface opposite to the first surface;
a coupling-out grating on the first surface and configured to couple the image light out of the waveguide;
and
a first light modulation element on the second surface and on light paths of the image light and ambient light, the first light modulation element comprising a first light-transmitting surface facing away from the waveguide and comprising a first light modulation region and a second light modulation region connected to the first light modulation region, wherein the first light modulation region is configured to adjust a focus of the ambient light, and the second light modulation region is configured to adjust a focus of the image light;
and
a curvature of the first light modulation region is different form a curvature of the second light modulation region.

3 more elements

A near-eye display device comprising:

a display assembly configured to emit image light;
and
an optical waveguide structure comprising:
a waveguide configured to guide image light and comprising a first surface and a second surface opposite to the first surface;
a coupling-out grating on the first surface and configured to couple the image light out of the waveguide;
and
a first light modulation element on the second surface and on light paths of the image light and ambient light, the first light modulation element comprising a first light-transmitting surface facing away from the waveguide and comprising a first light modulation region and a second light modulation region connected to the first light modulation region, wherein the first light modulation region is configured to adjust a focus of the ambient light, and the second light modulation region is configured to adjust a focus of the image light;
and
a curvature of the first light modulation region is different form a curvature of the second light modulation region, and the first light modulation element is configured to transmit the image light and the ambient light into human eye.

6 more elements

Dependencies are inferred from the claim text.

Optical waveguide structure and near-eye display device

Life of this patent

Optical waveguide structure and near-eye display device

Life of this patent

Abstract

Claims20