3D display device and control method thereof

Abstract

The invention provides a 3D display device and a control method thereof and belongs to the 3D display technical field. The 3D display device comprises a display panel used for displaying images and a grating structure, wherein the display panel and the grating structure are matched with each other so as to form a 3D display effect, and the grating structure includes a plurality of gratings which can be switched between a light transmitting state and a light-proof state; and the 3D display device further comprises an eye tracking unit used for acquiring the positions of the eyes of an observer, and a control unit which is connected with the eye tracking unit and is used for controlling and making the gratings switched between the light transmitting state and the light-proof state according to the positions of the eyes of the observer so as to enable the left eye of the observer to see a first view on the display panel through the grating structure and the right eye of the observer to see a second view on the display panel through the grating structure. The 3D display device of the invention has the advantages of concise structure and light weight as well as no dead area and smaller crosstalk in 3D display, and can assist in improving the viewing effect and comfort degree of the 3D display.

Description

technical field [0001] The present invention relates to the technical field of 3D display, in particular to a 3D display device and a control method thereof. Background technique [0002] The main principle of 3D display technology is to make the viewer's left and right eyes receive different images respectively, and the images received by the left and right eyes are analyzed and overlapped by the viewer's brain so that the viewer perceives the level of the image screen sense, thereby producing a three-dimensional sense. [0003] At present, glasses-free 3D technology has been extensively studied, among which parallax barrier type stereo display is more common, including Barrier (grating) type and liquid crystal lens type, etc. The barrier-type three-dimensional display mainly uses BM (black matrix) or other electrochromic materials as a grating to block light to ensure that the corresponding light can enter the correct human eye position; the main realization method of liq...

AI Technical Summary

Problems solved by technology

[0005] figure 2 It is a schematic diagram of the generation principle of the 3D dead zone in the prior art. When the viewer moves from the position shown on the left to the position shown on the right, if the moving distance of the human eye is exactly equal to the interpupillary distance, the left eye of the viewer moves to the original right eye viewing position, the right eye moves to the original left eye viewing position, causing the viewer's left eye to see the video on the display screen figure 2 screen, the right eye sees the video in the display figure 1 At this time, the human eye is in the dead zone of 3D viewing, that is, the left eye sees the picture that the right eye should see, and the right eye sees the picture that the left eye should see, and the human eye will feel dizzy or even vomit, seriously affecting the Viewing effect of 3D display

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