Title:
OPTICAL ENGINE SYSTEM AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/259619
Kind Code:
A1
Abstract:
An optical engine system (120) and a display apparatus (100). The optical engine system (120) comprises: a first modulation device (M1), used for modulating first linearly polarized light (c1) of a first optical path to obtain first modulated light (d1); a second modulation device (M2), used for modulating second linearly polarized light (c2) of a second optical path to obtain second modulated light (d2), the first linearly polarized light (c1) and the second linearly polarized light (c2) having the same polarization state; and a light combining prism (P), used for guiding the first modulated light (d1) and the second modulated light (d2) to be transmitted along the same optical path and obtaining projected light. Light paths of the first modulated light (d1), the second modulated light (d2), and the projected light are located in the same plane. In the optical engine system (120) and the display apparatus (100), the first linearly polarized light (c1) and the second linearly polarized light (c2) maintain a good linear polarization state during color combining, and the color combining efficiency is high.
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Inventors:
GUO ZUQIANG (CN)
DU PENG (CN)
LI YI (CN)
DU PENG (CN)
LI YI (CN)
Application Number:
PCT/CN2020/098221
Publication Date:
December 30, 2020
Filing Date:
June 24, 2020
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/20
Foreign References:
| CN108227356A | 2018-06-29 | |||
| CN108227356A | 2018-06-29 | |||
| CN106200217A | 2016-12-07 | |||
| CN1591084A | 2005-03-09 | |||
| CN101398536A | 2009-04-01 | |||
| US20080180640A1 | 2008-07-31 |
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