NEAR EYE DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Sep 9, 2021
app pub date -
Mar 9, 2020
filing date -
Mar 9, 2020
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Abstract
The invention relates to a near eye display device. A first waveguide element includes first light splitting elements for splitting an image beam, an inclined surface, and an antireflection structure. The image beam enters the first waveguide element from a first light input surface. The image beam, after being reflected by the inclined surface, is transmitted to the first light splitting elements and leaves the first waveguide element from a first light output surface. A distance is provided between the first light input surface and a second light output surface. The antireflection structure is located in a connected region of the first light input surface and the inclined surface and is configured to eliminate the condition that a part of the image beam incident from the first light input surface is reflected twice on the inclined surface to solve the problem of ghost image and provide high display quality.
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