Title:
SPECTACLE-TYPE TERMINAL DEVICE HAVING COMPACT STRUCTURE AND METHOD OF PROVIDING IMAGE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/261821
Kind Code:
A1
Abstract:
A spectacle-type terminal device comprises: a lens; a front body portion configured to allow parts to be mounted thereon and formed to support and secure the lens; and an optical engine disposed in a region within the front body portion and generating an image light that serves as an image source of a virtual image. There may be formed a holographic optical element (HOE), which is formed in at least one area of photopolymers formed on an inner surface or inside area of the lens, and is configured to display a virtual image corresponding to the image light by diffracting the image light.
Inventors:
HWANG CHANGKYU (KR)
SHIN SEUNGYONG (KR)
YANG SEUNGSU (KR)
SHIN SEUNGYONG (KR)
YANG SEUNGSU (KR)
Application Number:
PCT/KR2021/007378
Publication Date:
December 30, 2021
Filing Date:
June 14, 2021
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
G02B27/01; G02B1/14; G02B5/32; G02C11/00; G03H1/22
Domestic Patent References:
| WO2020120297A1 | 2020-06-18 |
Foreign References:
| KR20190124174A | 2019-11-04 | |||
| KR20170055992A | 2017-05-22 | |||
| KR20140136145A | 2014-11-28 | |||
| JP2019522234A | 2019-08-08 |
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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