TECHNICAL FIELD

Embodiments of the present disclosure relate to a stereoscopic display device, a fabrication method and a stereoscopic display method.

BACKGROUND

With advancement and development of science and technology, people's enjoyment of material life and spiritual level has always increased continuously. With respect to the spiritual level, in the era when science and technology are changing rapidly, people hope to implement unfettered imagination with a display device, so as to achieve an immersive effect; and thus, how to make the display device present a stereoscopic image or video becomes an objective to be eagerly achieved by using a current display device technology.

A current stereoscopic display technology mainly includes, for example, a naked-eye 3D display technology and a spectacle 3D display technology, wherein, the naked-eye 3D display technology may be divided into a lenticular lens method and a grating method according to an implementation method. A synthesized image is used in both methods, including image strips alternately arranged vertically or laterally, and these image strips are composed of a left image and a right image with a parallax. In the prior art, a stereoscopic display effect is achieved by using the parallax of both eyes. However, in the method, there may be problems such as image flicker, image stereoscopic brightness, image crosstalk, and the like.

SUMMARY

Embodiments of the present disclosure provide a stereoscopic display device, a fabrication method and a stereoscopic display method, which can control a distance between a substrate and a display screen by a microelectromechanical system, so that an image which is seen by a user has a better real stereoscopic display effect.

According to a first aspect, an embodiment of the present disclosure provides a stereoscopic display device, comprising: a control device, a display screen and a substrate, wherein the control device is provided between the display screen and the substrate, and the control device is configured to adjust a distance between the display screen and the substrate.

For example, the control device includes: at least one telescopic member, provided between the substrate and the display screen, and at least one telescopic member includes: an extending member, including one end close to the substrate and the other end away from the substrate; a fixed portion, with an end connected with the substrate, wherein a distance between the other end of an extension rod and an end of the fixed portion away from the substrate is changeable.

For example, the fixed portion is a hollow base that sleeves the extending member, a bottom portion of the hollow base is connected with the substrate, and the extending member is movable with respect to the hollow base, to change a distance between a portion of the display screen corresponding to the extending member and the substrate.

For example, the extending member extends from a top portion of the hollow base, so that a portion of the display screen corresponding to the extending member moves away from the substrate under an action of a pushing force of the extending member, when the extending member extends from the top portion of the hollow base, and a portion of the display screen corresponding to the extending member moves close to the substrate when the extending member retracts to the hollow base.

For example, the hollow base is an electromagnetic coil, and the extending member is a magnet body; when the electromagnetic coil is energized, a magnetic field is generated; and the magnet body extends from or retracts to the electromagnetic coil under an action of the magnetic field.

For example, the magnet body is a cylindrical structure whose outer surface is provided with a first thread, and an inner surface of the electromagnetic coil is provided with a second thread matching the first thread.

For example, a protective layer is provided on a surface of the extending member opposite to the display screen.

For example, the display screen is formed by a plurality of spliced display unit, and each of the display units corresponds to at least one telescopic member.

For example, the display units which are adjacent to each other are connected with each other through mutually engaged grooves or through mutually embedded concave-and-convex slide rails.

For example, a number of the fixed portions of the control device is smaller than a number of pixels of the display screen.

For example, a ratio of the number of the fixed portions of the control device to the number of the pixels of the display screen is 1:100 to 1:1000.

For example, the control device receives an electrical signal sent by the substrate, so that the control device adjusts the distance between the substrate and the display screen according to the electrical signal, and the electrical signal matches a stereoscopic display feature displayed by the display screen.

For example, the display screen is a flexible screen.

For example, the substrate is a TFT substrate.

For example, the substrate includes a plurality of seamlessly spliced TFT substrates.

According to a second aspect, an embodiment of the present disclosure provides a stereoscopic display method which is used in the stereoscopic display device according to the first aspect, the stereoscopic display method comprises: acquiring an image to be displayed on a display screen; extracting a stereoscopic display feature in the image; and obtaining a driving signal of a control device according to the stereoscopic display feature, so that the control device adjusts a distance between a substrate and the display screen according to the driving signal.

For example, the control device includes: at least one telescopic member, the converting the stereoscopic display signal into the driving signal of the control device, so that the control device adjusts the distance between the substrate and the display screen according to the driving signal, includes: converting the stereoscopic display signal into a driving signal in one-to-one correspondence with the at least one telescopic member.

According to a third aspect, an embodiment of the present disclosure provides a fabrication method of the stereoscopic display device according to the first aspect, the fabrication method comprises: fabricating a substrate and a control device by using a semiconductor fabrication process; providing a display screen; and cell-assembling the display screen with the substrate on which the control device is provided.

For example, the display screen is formed by a plurality of spliced display unit, the providing the display screen includes: providing a plurality of the display units; and splicing the plurality of display units into the display screen.

