公开(公告)号：US20220221720A1

公开(公告)日：2022-07-14

申请号：US17350740

申请日：2021-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Seungyong SHIN ,  Changkyu HWANG ,  Seungsu YANG ,  Hwi KIM ,  Sangyoon KIM

IPC: G02B27/01 ,  G06T19/00

Abstract: A glasses-type device can include a display part configured to emit image light serving as an image source of a virtual image; a diffraction element configured to reflect and diffract the image light at a predetermined angle; and a first holographic optical element disposed on at least a portion of glass of the glasses-type device, in which the first holographic optical element is configured to cancel dispersion of the image light that is reflected and diffracted by the diffraction element, and reflect the light in which dispersion is canceled to display a virtual image corresponding to the image light.

公开(公告)号：US20230251487A1

公开(公告)日：2023-08-10

申请号：US18003298

申请日：2021-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Changkyu HWANG ,  Seungyong SHIN ,  Seungsu YANG

IPC: G02B27/01 ,  G02B27/00 ,  G02B5/32

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B27/0103 ,  G02B5/32 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02B2027/014 ,  G02B2027/0138 ,  G02B2027/0187 ,  G02B2027/0109

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.