2D/3D switchable display device

Abstract

The invention relates to the display technology and provides a 2D / 3D switchable display device. The 2D / 3D switchable display device comprises a signal input end, a diffraction projection system and a projection direction control system, all of which are orderly connected together, wherein the diffraction projection system is used for performing far-field diffraction projection on different-visual angle images of an object in a time sequence to display the images; the projection direction control system is used for deflecting different angles according to the object diffraction projection time sequence of the diffraction projection system; the diffraction projection system comprises a signal transmission conversion unit, a laser light source, a beam shaping unit and a diffraction modulator; the laser light source, the beam shaping unit, the diffraction modulator and the projection direction control system are arranged according to an optical path; the signal transmission conversion unit is connected with the signal input end, the diffraction modulator and the projection direction control system, respectively. The display device comprises no mechanical unit and all the adopted components are electronic control panel components and convenient to integrate; micro-components are adopted, which are easy to minimize and convenient to carry; the 2D / 3D switchable display device is suitable for the existing display devices.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a 2D (two-dimensional) / 3D (three-dimensional) switchable display device. Background technique [0002] Traditional display methods are generally two-dimensional, but the world we see is three-dimensional and three-dimensional. Three-dimensional stereo display adds third-dimensional depth information to the traditional two-dimensional plane display. Based on the principle of human eye parallax, wearing glasses can also make people feel a three-dimensional effect, but this method brings problems such as not moving, eye fatigue after using for a long time. People are looking forward to the new 3D display, and the naked eye can feel the three-dimensional effect. Existing naked-eye 3D display technologies mainly include eye-tracking 3D display, volumetric 3D display, holographic 3D display, and light field display. Among them, holographic 3D and light field display can...

AI Technical Summary

Problems solved by technology

However, there is no suitable dynamic display carrier bottleneck in the holographic three-dimensional display in the prior art, and the light-body three-dimensional display device has a vibration mechanism or requires many cameras and projectors to be spliced, so it is not easy to realize a miniature display device

But currently there is no 2D display and light field 3D display device based on diffractive projection

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