Liquid crystal grating, display device and driving method thereof

Abstract

The invention discloses a liquid crystal grating, a display device and a driving method for driving the display device. The liquid crystal grating includes a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer between the first substrate and the second substrate, and a first substrate is formed on the side opposite to the second substrate. a transparent electrode layer, and a second transparent electrode layer is formed on the side opposite to the first substrate of the second substrate, wherein the first transparent electrode layer includes a plurality of transparent electrode strips in the first direction, and the second transparent electrode layer including a plurality of second-direction transparent electrode strips; and wherein the plurality of first-direction transparent electrode strips include a plurality of first touch signal lines, and the plurality of second-direction transparent electrode strips include a plurality of second touch signal lines , the first touch signal line and the second touch signal line are suitable for being driven by a touch driving signal to realize touch positioning. The invention realizes the integration of the touch function and the bidirectional autostereoscopic display function.

Description

technical field [0001] The invention relates to the field of display technology, and more particularly relates to a liquid crystal grating, a display device and a driving method thereof. Background technique [0002] Automatic or naked-eye stereoscopic display devices usually use parallax barrier technology, in which a vertical fence-shaped optical barrier called "parallax barrier" is set on the surface of the display screen to control the direction of light travel, so that the left and right eyes receive different images to generate parallax to achieve stereo display effect. However, since the arrangement direction of the optical barriers is fixed, the three-dimensional effect cannot be presented when the display screen is rotated by 90 degrees. [0003] Switchable liquid crystal barriers can remove the inherent limitations of parallax-barrier 3D stereoscopic display devices. The switchable liquid crystal grating is used as a parallax barrier, and the 2D / 3D display mode...

AI Technical Summary

Problems solved by technology

[0004] However, when a touch function needs to be added to the existing stereoscopic display device 100, an additional touch screen must be pasted on the stereoscopic display.

As two independent display components, the touch screen and the three-dimensional display screen need to be masked on their respective substrates, resulting in complex processes and high costs

In addition, the thickness of the display device obtained as a result is relatively large, which is not conducive to the design of the product

Images