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2D/3D switchable automatic stereoscopic display device and method base on parallax barrier

An automatic stereoscopic display and 3D technology, applied in stereoscopic systems, instruments, optics, etc., can solve problems such as inability to display 2D images

Inactive Publication Date: 2012-09-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen that the parallax barrier technology forms a 3D effect by controlling the angle and direction of the outgoing light, however, when using the parallax barrier technology, 2D images cannot be displayed
Considering that the content of the current 3D images has not yet reached a very rich stage, for 3D displays, it is required to be able to display both 3D images and 2D images.

Method used

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  • 2D/3D switchable automatic stereoscopic display device and method base on parallax barrier
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  • 2D/3D switchable automatic stereoscopic display device and method base on parallax barrier

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Embodiment Construction

[0035] Such as figure 2 and 3 As shown, the 2D / 3D switchable autostereoscopic display device of the present invention includes a light guide plate 10 , first light sources 41 and 42 , a second light source and a reflector 30 . The light guide plate 10 is disposed between the reflection plate 30 and the liquid crystal display 20 , the first surface of the light guide plate 10 faces the liquid crystal display 20 , and the second surface of the light guide plate 10 faces the reflection plate 30 .

[0036] The first light sources 41 and 42 are respectively disposed on two opposite side walls of the light guide plate 10, and they may be light emitting diodes, cold cathode tubes or organic light emitting diodes. It should be noted that in this embodiment, two first light sources are used, that is, the first light sources 41 and 42 are respectively arranged on two opposite side walls of the light guide plate 10, but in other embodiments, Only one first light source is used, which ...

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Abstract

The invention discloses a 2D / 3D switch-type automatic stereoscopic display device, comprising a light guide plate, a first light source, a second light source and a reflecting plate. The light guide plate is arranged between the reflecting plate and a liquid crystal display screen. The first surface of the light guide plate is opposite to the liquid crystal display screen and the second surface of the light guide plate is opposite to the reflecting plate. The first light source is disposed on the sidewall of the light guide plate. The second light source is disposed on the first surface of the light guide plate and is periodically distributed in belt to make the first surface a grating. Light from the first light source displays 3D images through the grating. Light from the second light source displays 2D images. The 2D / 3D switchable automatic stereoscopic display device has a simple structure, can switch conveniently and fast between 2D / 3D display modes, and has better display effects of 2D and 3D images.

Description

technical field [0001] The invention relates to autostereoscopic display technology, in particular to a 2D / 3D switchable autostereoscopic display device based on a parallax barrier and a method thereof. Background technique [0002] Stereoscopic display is the main type of three-dimensional display, which uses parallax to realize the depth sensitivity of human eyes. Stereoscopic display can be divided into stereoscopic display that needs to wear auxiliary glasses device and automatic stereoscopic display that does not need to wear any auxiliary glasses device. Autostereoscopic display technology can be used in military, medical, data visualization, engineering, entertainment, virtual business trade and education, and has become a research hotspot in the field of display technology in the world. [0003] Parallax Barrier (Parallax Barrier) technology is a more commonly used autostereoscopic display technology at present. It uses an opaque "parallax barrier" to block the imag...

Claims

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Application Information

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IPC IPC(8): G02B27/22G02F1/13357H04N13/04
Inventor 陆建钢王祎君宋悦谢汉萍
Owner SHANGHAI JIAO TONG UNIV
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