Near eye display device
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United States of America Patent
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Sep 14, 2021
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N/A
app pub date -
Mar 6, 2020
filing date -
Mar 6, 2020
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Abstract
A near eye display device includes a display and a first waveguide element, the first waveguide element including a light incoming surface, a light exiting surface, a reflective inclined surface and beam splitting elements. An image beam provided by the display enters the first waveguide element via the light incoming surface and is reflected by the reflective inclined surface in the first waveguide element to the beam splitting elements, and is split by the beam splitting elements and leaves the first waveguide element via the light exiting surface. The reflective inclined surface has a first reflectivity distribution in a first incident angle range and a second reflectivity distribution in a second incident angle range. An angle in the second incident angle range is greater than an angle in the first incident angle range, and the first reflectivity distribution has a greater reflectivity average value than the second reflectivity distribution.
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