公开(公告)号：US20210364797A1

公开(公告)日：2021-11-25

申请号：US16499825

申请日：2019-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Induck HWANG ,  Inho CHOI ,  Hoyoung CHOI ,  Hoon HUR

IPC: G02B27/01 ,  G02B5/30 ,  G02B25/00

Abstract: Disclosed is an optical device including a display module according to the present disclosure. The display module according to the present disclosure may display an image in a short-distance by laminating a cholesteric liquid crystal film layer on one surface of a display panel emitting light toward an eye of a user, and sequentially disposing a reflective polarizer, a lens, a half-mirror, and a display panel on an optical axis defined by the eye of the user in a direction away from a portion adjacent to the eye. An electronic device according to the present invention may be associated with an artificial intelligence module, robot, augmented reality (AR) device, virtual reality (VR) device, and device related to 5G services.

公开(公告)号：US20210208395A1

公开(公告)日：2021-07-08

申请号：US16499738

申请日：2019-08-16

Applicant: LG ELECTRONICS INC.

Inventor： Induck HWANG ,  Inho CHOI ,  Hoyoung CHOI ,  Hoon HUR ,  Hyeongseok CHAE

IPC: G02B27/01 ,  G02B5/30

Abstract: Disclosed is an electronic device. In the electronic device according to the present invention, a display panel disposed to emit light in a gravity direction, a concave mirror positioned below the display panel, and a polarizer positioned between the display panel and the concave mirror are used and the polarizer includes a cholesteric liquid crystal, thereby securing a visible distance and miniaturizing a size and a volume of the entire electronic device when a user wears the electronic device. The electronic device according to the present invention may be associated with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 5G service, and the like.

公开(公告)号：US20230324776A1

公开(公告)日：2023-10-12

申请号：US18025076

申请日：2020-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunjin KIM ,  Hoyoung CHOI ,  Kiso BOK ,  Jaehoon AHN ,  Jaehoon LEE

IPC: G03B21/20 ,  G03B33/10

CPC classification number: G03B21/204 ,  G03B21/2013 ,  G03B33/10 ,  G03B21/2066

Abstract: An optical system having a first red light emitting diode (LED) emitting a first light of a first wavelength; a second red LED emitting a second light of a second wavelength; a blue LED emitting a third light of a third wavelength; a blue laser diode emitting a fourth light of the third wavelength; and a green phosphor converting the fourth light into a fifth light of a fourth wavelength, in which the first light, the second light, the third light, and the fifth light are emitted in a first direction.