Directional display three-dimensional display device

A three-dimensional display and directional display technology, applied in the direction of instruments, etc., can solve the problems involving many parameters and high requirements for microstructure design, and achieve the effect of thickness reduction

Active Publication Date: 2021-01-29
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, more and more autostereoscopic display design schemes require directional light sources, causing researchers to continue to study directional backlight sources, which mainly realize the design of directional light sources through microstructured light guide plates and LED light sources, but the requirements for microstructure design High, and involves many parameters

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  • Directional display three-dimensional display device

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0037] see figure 1 , the three-dimensional display device based on directional display includes a resonant cavity, a transparent self-luminous display, and an angle deflection device 4 . The directional display includes a resonant cavity and a transparent self-luminous display 2, wherein the resonant cavity includes a complete reflective mirror 1 and a partial reflective mirror 3 in the visible range to realize the selection of the frequency and directionality of the beam. The transparent self-luminous display 2 can be selected but not limited to OLED and MicroLED. The angle deflection device 4 may be selected from, but not limited to, pixel-type nano-gratings, liquid crystal electro-optic modulation elements, liquid crystal polymer gratings, other electro...

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Abstract

The invention discloses a directional display three-dimensional display device, and is characterized in that the three-dimensional display device comprises a directional displayer and an angle deflection element, and the directional displayer comprises a resonant cavity and a transparent self-luminous displayer; a light beam emitted by the transparent self-luminous displayer goes back and forth inthe resonant cavity and then is emitted to the angle deflection element; the resonant cavity is composed of a complete reflecting mirror / complete reflecting film and a partial reflecting mirror / partial reflecting film which are located on the two sides of the transparent self-luminous displayer. Or the resonant cavity consists of wavelength-level optical structures positioned on the two sides ofthe transparent self-luminous displayer. The directional displayer provided by the invention is a device which is light, thin, simple in device and capable of realizing large-area light orientation, and the corresponding three-dimensional display device is a three-dimensional display device capable of realizing a large field angle and a free viewpoint.

Description

technical field [0001] The present invention relates to the technical field of three-dimensional display, in particular to an implementation of directional display and a three-dimensional display device thereof. Background technique [0002] With the continuous advancement of technology, traditional two-dimensional display can no longer meet people's needs for reproducing the real world. Compared with two-dimensional display, three-dimensional display can enable viewers to obtain real depth information and complete surface features of objects. 3D display technology is divided into vision-aided 3D display and autostereoscopic 3D display according to whether wearable optical devices are needed, among which autostereoscopic 3D display has gradually become a research hotspot. Autostereoscopic 3D display is mainly realized by parallax barrier technology, cylindrical lens array technology, microlens array technology, etc. The principle is geometric optics, which considers the stra...

Claims

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Application Information

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IPC IPC(8): G02B30/31G02B30/35
CPCG02B30/31G02B30/35
Inventor 刘旭李子寅李海峰
Owner ZHEJIANG UNIV
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