US 11,852,840 B2
Display device employing meta surface
Seokil Moon, Suwon-si (KR); Sangeun Mun, Seoul (KR); Sunil Kim, Seoul (KR); Wontaek Seo, Yongin-si (KR); Geeyoung Sung, Daegu (KR); Bongsu Shin, Seoul (KR); Daeho Yang, Suwon-si (KR); Hongseok Lee, Seoul (KR); and Seunghoon Han, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 27, 2021, as Appl. No. 17/241,774.
Claims priority of application No. 10-2020-0166940 (KR), filed on Dec. 2, 2020.
Prior Publication US 2022/0171209 A1, Jun. 2, 2022
Int. Cl. G02B 27/28 (2006.01); G02B 27/01 (2006.01); G02B 27/00 (2006.01); G02B 26/08 (2006.01)
CPC G02B 27/286 (2013.01) [G02B 27/0093 (2013.01); G02B 27/0172 (2013.01); G02B 26/0816 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
an image provider comprising a spatial light modulator configured to modulate light according to image information, wherein the image provider is configured to provide the light comprising the image information;
an optical element configured to focus the light from the image provider; and
a meta surface deflector positioned between the image provider and the optical element, the meta surface deflector comprising an arrangement of anisotropic nanostructures formed on a single surface of the meta surface deflector, the arrangement of the anisotropic nanostructures formed on the single surface of the meta surface deflector configured to deflect the light of a first polarization at a first deflection angle and deflect the light of a second polarization orthogonal to the first polarization at a second deflection angle, so that a deflection direction of the light is changed according to a polarization of the light,
wherein a first position of the light of the first polarization focused by the optical element is different than a second position of the light of the second polarization focused by the optical element, and
wherein the first deflection angle and the second deflection angle are not parallel with an angle in which the light is incident on the meta surface deflector.