WEARABLE DISPLAY APPARATUS
First Claim
1. A wearable display apparatus comprising:
- a light source unit to emit light of a plurality of colors having wavelength bands which do not overlap each other;
a light guide plate comprising;
a light guide portion to guide light incident from the light source unit by reflection, anda plurality of light output portions protruding from a surface of the light guide portion to output the light incident from the light source unit via a specular reflection as a surface light source;
a panel type optical modulation device to modulate the light irradiated from the light guide plate according to input image signals to display images;
a first diffractive device to diffract light incident from the panel type optical modulation device to change an optical path;
a waveguide in which light incident from the first diffractive device propagates; and
an imaging device to focus the light transferred through the waveguide to form an enlarged image.
1 Assignment
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Accused Products
Abstract
A wearable display adopting a diffractive optical system includes a light source unit to emit light of a plurality of colors having wavelength bands which do not overlap each other; a light guide plate including a light guide portion to guide light incident from the light source unit by reflection, and a plurality of light output portions protruding from a surface of the light guide portion to output the light incident from the light source via a specular reflection as a surface light source. The light incident on a panel type optical modulation device from the light guide plate is modulated according to input image signals. The light emitted from the panel type optical modulation device is diffracted by a first diffractive device to be coupled to the waveguide and propagated by the waveguide. The light transferred through the waveguide is focused by an imaging device to form an enlarged image.
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Citations
20 Claims
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1. A wearable display apparatus comprising:
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a light source unit to emit light of a plurality of colors having wavelength bands which do not overlap each other; a light guide plate comprising; a light guide portion to guide light incident from the light source unit by reflection, and a plurality of light output portions protruding from a surface of the light guide portion to output the light incident from the light source unit via a specular reflection as a surface light source; a panel type optical modulation device to modulate the light irradiated from the light guide plate according to input image signals to display images; a first diffractive device to diffract light incident from the panel type optical modulation device to change an optical path; a waveguide in which light incident from the first diffractive device propagates; and an imaging device to focus the light transferred through the waveguide to form an enlarged image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification