Method for driving liquid crystal slit gratings

Abstract

The invention discloses a method for driving liquid crystal slit gratings, which is applied to three-dimensional display devices. A liquid crystal slit grating of a three-dimensional display device comprises a first substrate and a second substrate, wherein the first and second substrates are superimposed together, each substrate is provided with a plurality of mutually parallel strip electrodes, and the plurality of strip electrodes of the first substrate and the plurality of strip electrodes of the second substrate are perpendicular to each other and constitute an array-type grid electrode array. The driving method comprises the following step that: when the driving voltage difference between two substrates which are perpendicular to each other and arranged on the first and second substrates exceeds a threshold voltage of a liquid crystal panel, sub pixels corresponding to the positions on the liquid crystal panel and perpendicular to the two electrodes are driven. The method disclosed by the invention has the advantages that the co-fusion of 2D (two dimension) and 3D (three dimension) is realized, and a 3D visual window can be arbitrarily dragged to change the grating distance and the angle, so that the 3D visual window is matched with an image to be displayed, thereby achieving a good display effect and realizing the horizontal and vertical scanning of liquid crystal gratings; and through cooperating with the fast switching of signals of the liquid crystal panel, the full high-definition display in the horizontal and vertical directions is realized.

Description

technical field [0001] The invention relates to a driving method of a liquid crystal slit grating, in particular to a driving method of a liquid crystal slit grating for naked-eye stereoscopic display. Background technique [0002] Compared with head-mounted three-dimensional displays such as color division, light division and time division, the naked-eye stereoscopic (autostereoscopic) display technology based on parallax improves viewing comfort because it is objectively freed from the constraints of auxiliary equipment such as stereoscopic glasses. And broadened the application field and received extensive attention. Parallax barrier (parallax barrier) technology is a kind of naked-eye stereoscopic display technology. In order to facilitate the compatibility of 2D and 3D, whether it is a front barrier or a rear barrier, liquid crystal slit gratings have been widely used. At present, the naked-eye 3D display technology of liquid crystal slit grating and 2D display screen ...

AI Technical Summary

Problems solved by technology

At present, the naked-eye 3D display technology of liquid crystal slit grating and 2D display screen realizes the compatibility of 2D and 3D. During 2D display, no voltage is applied to the liquid crystal slit grating, which has high transmittance and basically does not affect the brightness and resolution of the 2D display screen. characteristics; during 3D display, a voltage is applied to the liquid crystal slit grating to form black and white stripes, so that the left and right eyes of the person can watch images with a certain parallax; however, the current display mode is relatively simple, that is, applying a voltage to the liquid crystal slit grating When voltage is applied, only full-screen 3D display can be realized, and 2D images cannot be displayed in local areas; when no voltage is applied to the liquid crystal slit grating, only 2D images can be viewed on the full screen, and 3D display cannot be realized locally due to the liquid crystal grating and LCD panel The interference between them makes the display effect poor and affects the viewing comfort

In addition, the method of reducing interference by tilting the electrodes has a certain effect, but this method cannot realize the function of 3D effect in both horizontal and vertical directions, and it cannot realize the picture-in-picture function

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