US 12,352,969 B2
Display apparatus including combiner having asymmetric magnification
Changkun Lee, Seoul (KR); Woojun Han, Seoul (KR); Jaisoon Kim, Anyang-si (KR); Seokil Moon, Suwon-si (KR); Geeyoung Sung, Daegu (KR); and Seunga Lim, Incheon (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION, Yongin-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION, Yongin-si (KR)
Filed on Mar. 22, 2022, as Appl. No. 17/700,775.
Claims priority of application No. 10-2021-0036755 (KR), filed on Mar. 22, 2021.
Prior Publication US 2022/0299776 A1, Sep. 22, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 6/34 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 6/34 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0178 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
an image forming device configured to form a virtual image; and
a combiner configured to mix the virtual image with light corresponding to an outside environment and provide a viewer with the virtual image and the light that are mixed with each other,
wherein the combiner comprises a curved surface that changes a size of the virtual image based on a first magnification in a first direction and a second magnification in a second direction perpendicular to the first direction, the second magnification being less than the first magnification, and
wherein the combiner comprises a transparent waveguide configured to transmit the virtual image, and the curved surface is provided on a surface of the transparent waveguide.