US 11,988,836 B2
Virtual image display device
Jaeho You, Gwangmyeong-si (KR); and Youngchan Kim, Incheon (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 8, 2021, as Appl. No. 17/370,463.
Claims priority of application No. 10-2020-0101724 (KR), filed on Aug. 13, 2020.
Prior Publication US 2022/0050296 A1, Feb. 17, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 27/42 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 27/4205 (2013.01); G02B 2027/0112 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A virtual image display device comprising:
a first light combining part;
a second light combining part spaced apart from the first light combining part and disposed adjacent to the first light combining part in a direction;
a first display part disposed on a first inclined surface of the first light combining part;
a second display part disposed on a second inclined surface of the first light combining part;
a third display part disposed on a third inclined surface of the second light combining part;
a fourth display part disposed on a fourth inclined surface of the second light combining part;
a first light diffraction part disposed on a first light output surface of the first light combining part; and
a second light diffraction part disposed on a second light output surface of the second light combining part,
wherein two of the first to fourth display parts output images of a same color light, and the other two of the first to fourth display parts output images of different color light, such that a combination of colors of the images into the first light combining part and a combination of colors of the images input into the second light combining part are different from each other.