The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2021
Filed:
Jul. 20, 2017
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02F 1/1334 (2006.01); G02F 1/1335 (2006.01); G02F 1/137 (2006.01); G02F 1/29 (2006.01); G06F 3/01 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 6/0045 (2013.01); G02B 6/0068 (2013.01); G02B 6/0076 (2013.01); G02F 1/137 (2013.01); G02F 1/1334 (2013.01); G02F 1/133528 (2013.01); G02F 1/29 (2013.01); G06F 3/011 (2013.01); G06F 3/017 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01); G02F 1/294 (2021.01);
Abstract
A head-mounted display (HMD) includes a frame configured to be fixated to a head, a light-transmissive display unit fixated to the frame and outputting a VR image in a VR mode and an AR image in an AR mode, a light transmission control layer having changed transmittance, a lens unit having a refractive index changed in the VR mode and the AR mode, and a controller control the light transmission control layer to increase transmittance in the AR mode and decrease transmittance in the VR mode.