Holographic display device and driving method thereof, and display cabinet
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United States of America Patent
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Oct 13, 2020
Grant Date -
Oct 25, 2018
app pub date -
Apr 18, 2018
filing date -
Apr 19, 2017
priority date (Note) -
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Abstract
A holographic display device is provided, comprising a spatial light modulator. The spatial light modulator is configured to load at least one composite hologram, and one of the at least one composite hologram is formed by superposing N sub-holograms. The holographic display device further comprises a light source arranged on a light incoming side of the spatial light modulator. The light source is configured to provide readout light to the spatial light modulator. The light source comprises M light source components. The direction of propagation of emergent light of each of at least two light source components among the M light source components is identical to the direction of propagation of a reference wave corresponding to one of the N sub-holograms, wherein M≥N≥2, and M and N are positive integers.
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