公开(公告)号：EP3955045A1

公开(公告)日：2022-02-16

申请号：EP20871894.0

申请日：2020-09-03

申请人： LG CHEM, LTD.

发明人： SON, Hyun Joo ,  SEO, Dae Han ,  SHIN, Bu Gon

IPC分类号： G02B27/01 ,  G02B5/32 ,  G02B7/02

摘要： Disclosed is a head mounted display which can secure an eye motion box having a certain level by implementing an image using a holographic optical element, the eye motion box being an area where a wearer can visually recognize the image, extend the field of view (FOV) of the wearer by disposing a lens (imaging lens) on an optical path between a display source and the holographic optical element, and secure an eye motion box having a certain level and extend the field of view (FOV) of the wearer by adjusting the positions of the display source and the lens.

公开(公告)号：EP3907551A1

公开(公告)日：2021-11-10

申请号：EP20872066.4

申请日：2020-08-07

申请人： LG Chem, Ltd.

发明人： SEO, Dae Han ,  KIM, Jae Jin ,  SONG, Min Soo ,  SHIN, Bu Gon ,  SON, Hyun Joo

IPC分类号： G02B27/01 ,  G02B5/32

摘要： Disclosed is a head mounted display including a lens unit disposed in front of an eye of a wearer; an holographic optical element disposed on one surface or the other surface of the lens unit; and an image display unit disposed on a lateral side of the eye of the wearer and configured to output image display light. The image display unit outputs the image display light toward the holographic optical element by using at least one of a liquid crystal display panel and an organic light emitting display panel, and the holographic optical element directs the image display light, which is output from the display panel, toward the eye of the wearer through reflection using diffraction.

公开(公告)号：EP4372429A1

公开(公告)日：2024-05-22

申请号：EP22842499.0

申请日：2022-07-15

申请人： LG Chem, Ltd.

发明人： SEO, Dae Han ,  SHIN, Bu Gon ,  LIM, Chang Yoon ,  CHOO, So Young ,  SON, Hyun Joo

IPC分类号： G02B5/18 ,  G02B5/04 ,  G02B5/32 ,  B29D11/00

CPC分类号： B29D11/00 ,  G02B5/18 ,  G02B5/04 ,  G02B5/32

摘要： The present disclosure provides an apparatus for manufacturing a diffractive optical element, the apparatus including: a prism for manufacturing a diffractive optical element, the prism comprising a photoreactive material attachment surface and a light reflecting surface inclined at a predetermined angle from the photoreactive material attachment surface; and a light source positioned at the opposite side of the prism with respect to the photoreactive material attached to the photoreactive material attachment surface, and configured to irradiate light toward the photoreactive material, and a method for manufacturing a diffractive optical element.

公开(公告)号：EP4119994A1

公开(公告)日：2023-01-18

申请号：EP21867180.8

申请日：2021-09-13

申请人： Lg Chem, Ltd.

发明人： CHOO, So Young ,  SEO, Dae Han ,  LIM, Chang Yoon ,  SON, Hyun Joo ,  MOON, Jae Young

IPC分类号： G02B5/32 ,  G03H1/02

摘要： The present invention relates to a holographic optical element and a method for producing the same, and particularly, to a holographic optical element and a method for producing the same, in which the holographic optical element is produced using a retardation layer so as to prevent an unwanted interference pattern from being formed in the process of recording an interference pattern in a photopolymer resin layer.