US 12,468,170 B2
Light field display system
Jian Gao, Beijing (CN); Tao Hong, Beijing (CN); and Wenji Zhu, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 17/435,367
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Feb. 19, 2021, PCT No. PCT/CN2021/076865
§ 371(c)(1), (2) Date Aug. 31, 2021,
PCT Pub. No. WO2021/164734, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 202010102046.X (CN), filed on Feb. 19, 2020.
Prior Publication US 2022/0146853 A1, May 12, 2022
Int. Cl. G02B 30/10 (2020.01); G02B 3/00 (2006.01); G02B 27/01 (2006.01)
CPC G02B 30/10 (2020.01) [G02B 3/0056 (2013.01); G02B 27/0172 (2013.01); G02B 2003/0093 (2013.01); G02B 2027/0127 (2013.01); G02B 2027/0129 (2013.01); G02B 2027/0134 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A light field display system comprising:
a plurality of light field display modules spliced at an angle, wherein each of the light field display modules comprises a display screen and a micro-lens array located on a light-emitting side of the display screen; and
a lens group, comprising a plurality of spliced lenses corresponding to the plurality of light field display modules on a one-to-one basis, wherein the lens group is located on a side, away from the display screen, of the micro-lens array, and forms a plurality of first imaging faces, wherein the first imaging faces are on the side, away from the micro-lens array, of the display screen, and correspond to the plurality of light field display modules on one-to-one basis, the plurality of first imaging faces are seamlessly spliced and forms a plurality of second imaging faces, wherein the second imaging faces are on a side, away from the light field display module, of the plurality of first imaging faces and seamlessly spliced, and the first imaging face is configured to display an upright virtual image of the corresponding light field display module;
wherein the spliced lens is a biconvex spherical lens;
wherein each of the first imaging faces comprises a first sub-imaging face and a second sub-imaging face which are not of the same image face, the first sub-imaging face is configured to display an upright virtual image of the display screen, the second sub-imaging face is configured to display an upright virtual image of the corresponding micro-lens array, and the first sub-imaging face is located on a focal plane of the virtual image of the micro-lens array displayed by the second sub-imaging face, so that a light beam emitted from the virtual image of the display screen displayed by the first imaging face forms a collimated light beam incident on a human eye;
the display screen is a part of the second sub-imaging face.