公开(公告)号：US20240264438A1

公开(公告)日：2024-08-08

申请号：US18577865

申请日：2022-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Jisun AHN ,  Dongwook KIM ,  Kwangwoo KIM ,  Seungsik KOH ,  Seonho LEE ,  Bosun LEE

IPC: G02B27/01

CPC classification number: G02B27/0101

Abstract: A head-up display may comprise: a picture generation unit having an emission surface from which image light is emitted; a half-wavelength phase retarder disposed to face a first area of the emission surface; a first flat mirror configured to reflect image light emitted from a second area of the emission surface; a second flat mirror configured to reflect image light emitted from the half-wavelength phase retarder; and a concave mirror configured to reflect each of the image light reflected by the first flat mirror and the image light reflected by the second flat mirror to a window shield.