US 12,443,141 B2
Holographic display apparatus including freeform curved surface and operating method thereof
Seokil Moon, Suwon-si (KR); Changkun Lee, Seoul (KR); and Geeyoung Sung, Daegu (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 4, 2021, as Appl. No. 17/518,804.
Claims priority of application No. 10-2021-0053105 (KR), filed on Apr. 23, 2021.
Prior Publication US 2022/0342366 A1, Oct. 27, 2022
Int. Cl. G03H 1/08 (2006.01); G02B 27/01 (2006.01); G03H 1/22 (2006.01)
CPC G03H 1/08 (2013.01) [G02B 27/0172 (2013.01); G03H 1/2294 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01); G03H 2210/30 (2013.01); G03H 2225/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A holographic display apparatus comprising:
an image generator configured to generate a hologram image by modulating light;
an optical system comprising a freeform curved surface configured to form the hologram image generated by the image generator at a predetermined depth; and
a processor configured to:
generate a computer-generated hologram (CGH) based on three-dimensional image information using a phase map, the phase map comprising information about an optical aberration due to the freeform curved surface; and
control the image generator to modulate the light based on the CGH.