Dual-chip passive polarized type three-dimensional projection system

Abstract

The invention discloses a dual-chip passive polarized type three-dimensional projection system, which relates to the technical field of image display and can solve the problem to reduce the cost and improve the projection effect. The system comprises a projection light source unit, a polarized light splitting component, a polarized light converging component, micro-display chips and a projection lens, wherein two micro-display chips are provided, which are a first micro-display chip and a second micro-display chip; the projection light source unit is used for emitting a three-primary-color non-polarized light beam to the polarized light spitting component according to time sequence; the three-primary-color non-polarized light beam is split into two single polarized light beams of different polarized states by the polarized light splitting component, then emitted to the light receiving surfaces of the two micro-display chips, respectively; next, the two single polarized light beams are modulated by the two micro-display chips according to three-primary-color signal modulation time sequence and then emitted to the polarized light converging component, respectively; finally, the two single polarized light beams are converged by the polarized light converging component as a single convergent light beam, and then the single convergent light beam is emitted out through the projection lens. The system disclosed by the invention is suitable for three-dimensional image projection.

Description

technical field [0001] The invention relates to image display technology, in particular to a technology of a dual-chip passive polarization three-dimensional projection system. Background technique [0002] Three-dimensional display technology is the trend of display technology in the future, and in three-dimensional display technology, passive polarization technology has direct advantages such as high reliability of technology, high utilization rate of light energy and low cost of peripheral equipment, especially polarized glasses. , has become the mainstream technology in the future three-dimensional display technology. [0003] The existing projector is mainly composed of a projection light source, a micro-display chip, and a projection lens. The projection light source is used to emit three primary color light beams to the micro-display chip in time sequence. Processing, first decompose a single frame rate image into three primary color component signals, and then modul...

AI Technical Summary

Problems solved by technology

The existing passive polarization 3D image display method has the following defects: 1) Two projectors are required to realize 3D image display, and the two projectors need to have two inputs, so the implementation cost is relatively high; 2) It is difficult to correct the two projected images to overlap, so the overlap of the images is poor; 3) In order to achieve the polarized light required by the left and right eyes, it is necessary to install a polarization filter on the outgoing light path of the two projectors film, will cause the projection light effect to decrease

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