公开(公告)号：US09678341B2

公开(公告)日：2017-06-13

申请号：US14476318

申请日：2014-09-03

Applicant: LG ELECTRONICS INC.

Inventor： Dongwook Kim ,  Minseok Ku ,  Kyoung Ii Lee ,  Dong Ha Lee

IPC: G03F5/00 ,  G02B27/01 ,  G02B27/22 ,  G02B27/28

CPC classification number: G02B27/0101 ,  G02B27/01 ,  G02B27/2214 ,  G02B27/225 ,  G02B27/283 ,  G02B2027/0118 ,  G02B2027/0141

Abstract: A head-up display (HUD) apparatus and a method of using the HUD apparatus are described. The HUD apparatus includes a first optical module configured to display a two dimensional (2D) image, a second optical module configured to display a three dimensional (3D) image and arranged at a predetermined angle relative to the first optical module, a separation module arranged on an optical path of the first and second optical modules to reflect a light of the first optical module and to project a light from the second optical module, and an optical system configured to output the light having passed the separation module.