Silica-based liquid crystal stereo projection light machine

Abstract

The invention provides a silica-based liquid crystal stereo projection light machine which can realize colorful three-dimensional stereo display. An engine mainly comprises a lighting source, two polarization light splitting devices, two reflection-type silica-based liquid crystal micro display chips, a projection objective lens and the like. The light machine provided by the invention adopts the two polarization light splitting devices so as to allow imaging light incident on the reflection-type silica-based liquid crystal micro display chips and imaging light reflected from the reflection-type silica-based liquid crystal micro display chips to pass through a polarization light splitting film of a polarization light splitting lens twice, and one time is transmission, and the other time is reflection, therefore, the extinction ratio of the work light is greatly improved, moreover, the extinction ratios of two emergent polarized light beams are completely equal, so that the contrast ratio of an injection image is effectively improved, and the image quality is improved. More importantly, compared with the existing stereo projection device adopting four polarization light splitting devices, the silica-based liquid crystal stereo projection light machine adopting the two polarization light splitting devices obviously reduces the manufacture cost and the technology difficulty, thereby being beneficial to the large scale production. The silica-based liquid crystal stereo projection light machine can realize the switchover of the three-dimensional image display and the two-dimension image display.

Description

technical field [0001] The invention relates to a silicon-based liquid crystal projection light machine, in particular to a silicon-based liquid crystal stereoscopic projection light machine. [0002] Background technique [0003] Stereoscopic projection display is widely sought after because of its immersive visual experience. There are many kinds of technologies for realizing stereoscopic projection display, and the active stereoscopic projection technology by means of liquid crystal shutter glasses is not suitable for ordinary families with many people because of the high cost of liquid crystal shutter glasses. With the help of the dual-optical stereo projection technology of polarized glasses, the cost of the polarized glasses is low, and many people can watch it at the same time, but it is only suitable for large movie theaters because of the huge size of the whole machine and the high production cost. Therefore, it is very necessary to study the stereoscopic projecti...

AI Technical Summary

Problems solved by technology

The LCoS projection light machine composed of LCoS microdisplay chip and polarization beam splitting device has the advantages of high light efficiency, good resolution, high contrast, low cost, small size and easy mass production, etc., but this LCoS projection light machine can only project Ordinary plane image, does not have the function of projecting stereoscopic images

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