公开(公告)号：US20200162707A1

公开(公告)日：2020-05-21

申请号：US16477513

申请日：2017-04-20

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zuqiang GUO ,  Lin MI ,  Yi LI

IPC: H04N9/31 ,  G03B21/20 ,  G03B21/00 ,  G02B27/14

Abstract: A projection display system, comprising: a first light source for emitting a first light; a first light modulation system for receiving the first light and modulating the first light into a first image light; a supplementary light source for at least emitting a supplementary light, wherein a spectrum of the first light comprises a spectrum of the supplementary light; a second light modulation system for receiving the supplementary light and modulating the supplementary light into a supplementary image light; a light combining device for combining the first image light and the supplementary image light, the beam cross-sectional area of the first image light being greater than the beam cross-sectional area of the supplementary image light at the light combining position; and a projection lens system for causing the first image light and the supplementary image light to form coincident images at a predetermined position.