US 11,953,856 B2
Holographic display apparatus
Hoon Song, Yongin-si (KR); Dukho Lee, Seoul (KR); Jong-Young Hong, Suwon-si (KR); Hongseok Lee, Seoul (KR); and Chilsung Choi, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 2, 2021, as Appl. No. 17/165,548.
Claims priority of application No. 10-2020-0064613 (KR), filed on May 28, 2020.
Prior Publication US 2021/0373493 A1, Dec. 2, 2021
Int. Cl. G06F 3/01 (2006.01); G03H 1/22 (2006.01); G06T 7/50 (2017.01)
CPC G03H 1/2294 (2013.01) [G03H 1/2205 (2013.01); G06T 7/50 (2017.01); G03H 2223/23 (2013.01); G03H 2223/50 (2013.01); G06F 3/013 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A holographic display apparatus comprising:
a spatial light modulator configured to modulate a wavefront of a reference beam to form a hologram image;
an optical element arranged to bend an incident beam onto at least one of a light incident surface and a light exit surface of the spatial light modulator to change a position of a viewing window of the hologram image off-axis by a first angle; and
an image processor configured to generate hologram data according to the position of the viewing window of the hologram image and a hologram image to be reproduced, and provide the hologram data to the spatial light modulator,
wherein the hologram image formed by the spatial light modulator is viewable from a side of the spatial light modulator.