US 12,436,426 B2
Light emitting substrate and virtual display apparatus
Xianqin Meng, Beijing (CN); Jin Yang, Beijing (CN); Pengxia Liang, Beijing (CN); Fang Cheng, Beijing (CN); Weiting Peng, Beijing (CN); Wei Wang, Beijing (CN); and Xiaochuan Chen, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/579,596
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 16, 2022, PCT No. PCT/CN2022/139445
§ 371(c)(1), (2) Date Jan. 16, 2024,
PCT Pub. No. WO2024/124512, PCT Pub. Date Jun. 20, 2024.
Prior Publication US 2025/0076705 A1, Mar. 6, 2025
Int. Cl. G02F 1/13357 (2006.01); G02B 27/01 (2006.01)
CPC G02F 1/133606 (2013.01) [G02B 27/017 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A light emitting substrate, comprising:
a light source;
a first light modulation layer having a first micro structure on a side closer to the light source; and
a second light modulation layer having a second micro structure on a side away from the light source;
wherein the second light modulation layer comprises a second base substrate and a plurality of second protrusions on the second base substrate; and
the plurality of second protrusions are a plurality of ring protrusions surrounding a central region of the second light modulation layer.