US 12,339,482 B2
Display device and operating method thereof
Han-Sheng Nian, Hsin-Chu (TW); Ming-Jui Wang, Hsin-Chu (TW); Chih-Chiang Chen, Hsin-Chu (TW); Chia-Hsin Chung, Hsin-Chu (TW); Yu-Cheng Shih, Hsin-Chu (TW); Wei-Syun Wang, Hsin-Chu (TW); Cheng-Chan Wang, Hsin-Chu (TW); Hsin-Hung Li, Hsin-Chu (TW); and Sheng-Ming Huang, Hsin-Chu (TW)
Assigned to AUO CORPORATION, Hsin-Chu (TW)
Filed by AUO Corporation, Hsin-Chu (TW)
Filed on Nov. 30, 2022, as Appl. No. 18/071,976.
Claims priority of application No. 202210835847.6 (CN), filed on Jul. 15, 2022.
Prior Publication US 2024/0019620 A1, Jan. 18, 2024
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0016 (2013.01) [G02B 6/0036 (2013.01); G02B 6/0068 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display device, comprising:
a first image generating unit configured to emit a first light; and
a first waveguide glass facing toward the first image generating unit, and the first waveguide glass comprising:
a first microstructure having a first portion and a second portion adjacent to but not overlapping with the first portion, wherein gratings of the first portion and second portion extend in different directions, and the gratings of the first portion do not intersect the gratings of the second portion;
two second microstructures, wherein the first microstructure is located between two ends at the same side of the two second microstructures; and
a third microstructure located between the two second microstructures and having a third portion and a fourth portion adjacent to but not overlapping with the third portion, wherein gratings of the third portion and fourth portion extend in different directions, and the gratings of the third portion do not intersect the gratings of the fourth portion, and each of the two second microstructures is configured to receive the first light of the first image generating unit transmitted by the first microstructure and transmit the first light to the third microstructure.