Projection device

• Main Authors: ZHOU JIULEI, ZHOU KANGDI, ZHONG XUAN, SUN ZIQI, BI YAO, WU ZHIKAI, ZHANG DONGHUA
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The utility model discloses a projection device. The projection device comprises a light source assembly; the first polarization element is arranged on the light emitting side of the light source assembly, and the first polarization element is a linear polarization element; the display panel is arranged on the side, away from the light source assembly, of the first polarization element, and the display panel comprises a liquid crystal layer; the second polarization element is arranged on the side, away from the first polarization element, of the display panel, and the second polarization element is a linear polarization element; the first lens is arranged on the side, away from the display panel, of the second polarization element and used for gathering emergent light of the second polarization element; the projection lens is arranged on the side, away from the display panel, of the first lens; and the quarter-wave plate is arranged between the second polarizing element and the first lens. 本实用新型公开了一种投影装置，包括：光