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US 2022/0187599 A1Published application
Waveguide type display apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsChangkun LEE, Seokil Moon, Geeyoung Sung, Bongsu Shin, Hongseok Lee
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Abstract
A waveguide type display apparatus is provided. This waveguide type display apparatus includes a waveguide through which an image proceeds and a leakage image reducer configured to reduce emission of a leakage image leaked from the waveguide without total internal reflection in the waveguide, from among images, to the outside by a volume grating.
Claims23
A waveguide type display apparatus comprising:
- a first waveguide;
- a first coupler provided on the first waveguide and configured to input light corresponding to an image into the first waveguide;
- a second coupler provided on the first waveguide and configured to output the light propagating through the first waveguide to outside of the first waveguide;
- and
- an optical element comprising a volume grating configured to reduce leakage light, among the light propagating through the first waveguide, which exits the first waveguide without total internal reflection.
2 more elements
Dependencies are inferred from the claim text.