Liquid crystal lens device with double-layered structure and preparation method of liquid crystal lens device with double-layered structure

Abstract

The invention relates to a liquid crystal lens device with a double-layered structure and a preparation method of the liquid crystal lens device with the double-layered structure. The device comprises a first substrate, a second substrate, a third substrate, a first liquid crystal layer and a second liquid crystal layer, wherein the first substrate, the second substrate and the third substrate are overlapped; the first liquid crystal layer is positioned between the first substrate and the second substrate; the second liquid crystal layer is positioned between the second substrate and the third substrate; a first electrode used as a common electrode is arranged on the first substrate; a second layered electrode group and a third layered electrode group are separately arranged on the second substrate and the third substrate; and the first electrode, electrodes in the second layered electrode group and electrodes in the third layered electrode group are made of transparent conductive substances. The device has characteristics of positive and negative lenses, under the condition that the voltage tuning of the liquid crystal lens with the double-layered structure is the same as that of a liquid crystal lens with a single-layered structure, the short focal length of the lens is almost halved, an adjustable range is expanded, aberration is improved obviously, light beam steering is controllable, and a point of view moves in the left-right direction and the up-down direction horizontally and vertically in space; and the characteristic of the lens is improved by adjustment of voltage applied to the electrodes, and the quality of 3D imaging is improved.

Description

technical field [0001] The invention relates to a double-layer structure liquid crystal lens device and a preparation method thereof. Background technique [0002] In the process of rapid development and more and more industrialization of naked-eye 3D displays, it is necessary for 3D display devices to display 3D images by adjusting optical paths in various ways. Among them, the liquid crystal lenticular 3D display overcomes several inherent problems of the lenticular lens grating 3D display: such as decreased brightness, fixed depth focal length, high light loss rate, serious crosstalk between left and right eyes, and low image resolution, especially for visible points. The number and the best viewing position are limited, which will easily lead to inherent device defects such as reduced viewing comfort. The liquid crystal lenticular 3D display can achieve free and rapid switching of 2D / 3D images, stable resolution, high definition, no crosstalk, continuous free zooming wi...

AI Technical Summary

Problems solved by technology

Among them, the liquid crystal lenticular 3D display overcomes several inherent problems of the lenticular lens grating 3D display: such as decreased brightness, fixed depth focal length, high light loss rate, serious crosstalk between left and right eyes, and low image resolution, especially for visible points. The number and the best viewing position are limited, which will easily lead to inherent device defects such as reduced viewing comfort

Its technical defect is that the opening of the single-hole single-cell liquid crystal lens is small, about 1mm, and only one of the o-light and e-light of natural light is modulated, and polarization independence cannot be achieved.

The number of electrodes is limited, the control voltage is too high, it is difficult to realize the ultra-thin and ultra-light market demand, the liquid crystal refractive index gradient changes in steps rather than gradual changes, and the depth focal length cannot be continuously and freely zoomed, resulting in serious image aberrations. Jumping abruptly, loss of clarity, poor quality, no polarization independence

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