Projection device that provides images from multiple perspectives

Abstract

The present invention is a projection device for providing images with multiple viewing angles, which includes a light source group, a polarization splitting element, a first reflective light valve, a second reflective light valve and a light combination element. The light incident surface of the polarization beam splitting element is optically coupled to the light source group, and the first light output surface and the second light output surface of the polarization beam splitting element are respectively optically coupled to the first and second reflective light valves. The light-combining element is respectively optically coupled to the first and second reflective light valves. Among them, the light source group sequentially provides the first light and the second light along different optical paths, which can be transmitted to a viewer through the polarization splitting element, the first reflective light valve, the second reflective light valve, and the light combining element. Make it possible to watch at least four-view images. Through this configuration, the user can be provided with a projection device with images from multiple viewing angles.

Description

technical field [0001] The present invention is a projection device, in particular, a projection device that can provide images from multiple viewing angles. Background technique [0002] In recent years, in order to pursue realistic and close-to-real images, display technologies have been continuously updated to better meet the needs of users. Therefore, from the pursuit of resolution and color in the early stage of flat display, it has gradually evolved to three-dimensional display devices in recent years to further provide users with three-dimensional experience in addition to high-color flat images. [0003] The main working principle of stereoscopic display is to feed the images of objects viewed from different angles to the left and right eyes respectively. According to the visual characteristics of human eyes, when the two eyes watch two images with the same image content but with parallax, The user will feel that the viewed object has a sense of layering and depth, ...

AI Technical Summary

Problems solved by technology

In detail, taking this embodiment as an example, the light source 21 sequentially generates the first-view image, the second-view image, the third-view image, and the fourth-view image on the viewing area adjacent to the panel 27. The stereoscopic image display device needs to be equipped with a rotating polygonal mirror 25, and the rotation method of the polygonal mirror 25 is mostly mechanically operated, which is prone to generate a lot of noise due to friction

And if desire to increase the viewing angle of division, at this moment, then need to correspondingly increase the rotating speed of rotating polygonal mirror 25, make aforementioned shortcoming will be more remarkable

[0007] In fact, if the three-dimensional display effect is achieved by using the spatial multiplex mode (spatial multiplex) or the time-domain multi-task mode (timemultiplex) alone, there are shortcomings and problems that have yet to be overcome.

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