Two-dimensional (2D)/three-dimensional (3D) switchable display device

Abstract

The invention provides a two-dimensional (2D) / three-dimensional (3D) switchable display device which comprises a display panel, a 3D functional film and a 2D / 3D switching device, wherein the display panel is used for generating a 2D or 3D image; the 3D functional film is positioned between the display panel and an observer and is used for carrying out left / right-eye separation on light rays emitted by the image generated by the display panel; and the 2D / 3D switching device is positioned between the 3D functional film and the observer and is used for carrying out 2D / 3D switching on a display mode. The 2D / 3D switching device comprises a first basal plate, a second basal plate and a cholesteric type liquid crystal layer or a smectic type liquid crystal layer clamped between the first basal plate and the second basal plate and also comprises a first electrode which is positioned on the first basal plate and is close to the liquid crystal layer and a second electrode which is positioned on the second basal plate and is close to the liquid crystal layer. The 2D / 3D switching of an image seen by the observer is realized by regulating voltage between the first electrode and the second electrode. The 2D / 3D switchable display device has a simple structure and low energy consumption and can be suitable for various types of display devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a 2D / 3D switchable display device. Background technique [0002] With the continuous development of display technology, people are increasingly pursuing more realistic display images. In recent years, three-dimensional (3D) displays (also known as stereoscopic displays) have emerged using different technologies. Compared with two-dimensional (2D) displays, 3D displays can bring more realistic three-dimensional effects to observers. people's welcome and favor. [0003] The reason why people see objects are three-dimensional is that people have two eyes, and the two eyes have a certain distance. Objects produce two images with subtle differences on the retinas of the two eyes, which are synthesized into one after processing by the brain. 3D image. Stereoscopic display technology uses the principle of stereoscopic imaging of the human eye. When the human eye looks at an object, ...

AI Technical Summary

Problems solved by technology

[0005] The 2D / 3D switchable liquid crystal lens or liquid crystal grating of the prior art has the following disadvantages: first, they are all based on polarized light, so they are only suitable for application on liquid crystal display panels; second, they all need to make patterned electrodes, The manufacturing process is difficult; again, for the liquid crystal lens, its driving circuit is complicated, it needs to be driven by multiple voltage signals, and it needs an expensive driver IC; in addition, they are all 2D / 3D switchable modes based on 2D, so they first ensure that 2D performance rather than 3D performance, so the 3D effect is relatively poor; finally, since both require a continuous power supply, the power consumption is relatively high

Images