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Patent Searching and Data


Title:
3D OPTICAL GRATING AND 3D DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/147752
Kind Code:
A1
Abstract:
A 3D optical grating (1), comprising a first refraction layer (10) and a second refraction layer (20) that are stacked, the refractive index of the first refraction layer (10) being different from that of the second refraction layer (20), and anti-reflection layers (300, 310) being provided at least on a joint surface between the first refraction layer (10) and the second refraction layer (20) or on the end surface of the first refraction layer (10) away from the second refraction layer (20). Such 3D optical grating improves the transmittance of a 3D display device. Also disclosed is a 3D display device.

Inventors:
DIAO HONGHAO (CN)
HUANG LINGXI (SG)
Application Number:
PCT/CN2021/071699
Publication Date:
July 29, 2021
Filing Date:
January 14, 2021
Export Citation:
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Assignee:
BEIJING IVISUAL 3D TECH CO LTD (CN)
VISIOTECH VENTURES PTE LTD (SG)
International Classes:
G02B30/27
Foreign References:
CN212255895U2020-12-29
KR20140062349A2014-05-23
CN1823292A2006-08-23
CN107247333A2017-10-13
CN101000406A2007-07-18
CN105022202A2015-11-04
Attorney, Agent or Firm:
BEIJING IVISUAL 3D TECHNOLOGY CO., LTD. (CN)
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