公开(公告)号：US20170235136A1

公开(公告)日：2017-08-17

申请号：US15335857

申请日：2016-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Youngjin KIM ,  Juhyeok RYU ,  Dongwook KIM ,  Kyoungil LEE ,  Seunggyu LEE

IPC: G02B27/01 ,  G02B5/30 ,  B60K35/00 ,  G02B27/28

CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60K2350/1072 ,  B60K2350/2052 ,  B60K2350/2056 ,  B60K2350/2095 ,  G02B5/30 ,  G02B5/3083 ,  G02B27/0149 ,  G02B27/286 ,  G02B2027/015 ,  G02B2027/0152

Abstract: A head up display for a vehicle according to an embodiment includes a display panel configured to emit an image light; a polarized light plate configured to make the image light emitted from the display linearly polarized; a reflective mirror configured to reflect the image light onto a windshield of a vehicle; a polarized light reflective mirror configured to be disposed to face the reflective mirror; and a phase delay mirror configured to convert a phase of the light inputted from the polarized light plate and reflect the converted phase to the polarized light reflective mirror, and to convert a phase of the light reflected from the polarized light reflective mirror and reflect the converted phase to the polarized light reflective mirror, thereby minimizing a width in the forward and backward direction.