3d beam splitter and stereoscopic display device

Abstract

The invention relates to the technical field of three-dimensional display and particularly relates to a 3D (Three Dimensional) optical splitter and a three-dimensional display device. The 3D optical splitter comprises a plurality of lens units, wherein a first base plate of each lens unit is provided with a first electrode and a first dielectric layer; each first dielectric layer is provided with a second electrode; each first dielectric layer is further provided with a first horizontal alignment layer; a third base plate is provided with a first public electrode; a second horizontal alignment layer covers a first public electrode; a first liquid crystal layer is packaged between each first base plate and the third base plate; the third base plate is provided with a first polaroid and a fourth base plate covers the first polaroid; the fourth base plate is provided with a third electrode; the fourth base plate is further provided with a third horizontal alignment layer; a second base plate is provided with a second public electrode; a fourth horizontal alignment layer covers the second public electrode; a second liquid crystal layer is packaged between the second base plate and the fourth base plate. The 3D optical splitter and the three-dimensional display device provided by the invention can be used for reducing 3D crosstalk and realizing good three-dimensional display.

Description

technical field [0001] The invention relates to the technical field of 3D stereoscopic display, in particular to a 3D beam splitter and a stereoscopic display device. Background technique [0002] In 3D stereoscopic display technology, glasses-free 3D has become the focus of 3D display technology research because of the convenience of viewing 3D effects without other auxiliary equipment and its advantages in application. Among various naked-eye 3D display technologies, autostereoscopic display devices using liquid crystal lenses and liquid crystal slit gratings have attracted widespread attention due to their respective unique advantages. [0003] The three-dimensional display device realized by liquid crystal lens mainly utilizes the positive and negative electrodes respectively arranged on the two substrates on both sides of the liquid crystal layer, and different driving voltages are applied to the different electrodes, so that the two substrates have different intensitie...

AI Technical Summary

Problems solved by technology

It can be seen from the figure that although the optical path difference distribution curve of the liquid crystal lens unit after voltage optimization is basically close to the ideal parabola at the lens center, at the junction of the two liquid crystal lens units (marked by a box in the figure), the liquid crystal lens light The path difference distribution still obviously deviates from the ideal parabola, resulting in a large crosstalk in the stereoscopic display device using liquid crystal lenses, which reduces the stereoscopic display effect and viewing comfort

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