US 11,988,845 B2
Near-eye display devices
Meng Yan, Beijing (CN); Wei Wang, Beijing (CN); and Qiuyu Ling, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Feb. 24, 2021, as Appl. No. 17/183,486.
Claims priority of application No. 202010244470.8 (CN), filed on Mar. 31, 2020.
Prior Publication US 2021/0302752 A1, Sep. 30, 2021
Int. Cl. G02B 27/09 (2006.01); G02B 27/01 (2006.01)
CPC G02B 27/0961 (2013.01) [G02B 27/0172 (2013.01); G02B 2027/011 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A near-eye display device, comprising:
a pixel island assembly, comprising a plurality of light-emitting elements; and
a microlens array assembly, comprising a microlens array and an optical surface member, the optical surface member having an optically transmissive free-form surface, a planar total-reflection surface and an optically reflective free-form surface, each surface of which intersects with other two surfaces;
wherein light emitted by the pixel island assembly enters the optical surface member through the optically transmissive free-form surface, is reflected by the planar total-reflection surface and by the optically reflective free-form surface in sequence, and then exits the optical surface member through the microlens array.