Electronically controlled stereoscopic 3D grating film

Abstract

The invention relates to an electronically controlled stereoscopic 3D grating film, comprising: a base film and conductive parts, wherein a plurality of conductive parts are arranged in the base film, the plurality of conductive parts are distributed in parallel along the length direction of the base film, the two ends of the conductive parts are respectively connected with positive electrode wire rows and negative electrode wire rows; when the two ends of the conductive parts are connected to a power source, the voltage between the positive electrode wire rows and the negative electrode wirerows can be adjusted, the refractive index of each point of the base film is changed by adjusting the voltage of the conductive parts, and there is a parallax between left images and right images ofdifferent viewpoints observed by left and right eyes.

Description

technical field [0001] The invention relates to a grating film, in particular to an electronically controlled three-dimensional 3D grating film. Background technique [0002] An optical device consisting of a large number of parallel slits of equal width and equal spacing is called a grating. The grating is a sheet composed of strip lenses. When we look from one side of the lens, we will see an image on a very thin line on the other side of the sheet, and the position of this line is determined by the viewing angle. It is decided that if we print these images on different lines, corresponding to the width of each lens, on the back of the grating sheet in order, when we observe through the lens from different angles, we will see different images. image. [0003] Traditional gratings are generally made by carving a large number of parallel notches on a glass sheet. Light is transmitted through the smooth part between the two notches. After the notch is engraved, the refracti...

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Problems solved by technology

[0003] Traditional gratings are generally made by carving a large number of parallel notches on a glass sheet. Light is transmitted through the smooth part between the two notches. After the notch is engraved, the refractive index of the glass sheet cannot be changed, and the depth of the three-dimensional 3D image cannot be adjusted. Change, the stereoscopic image display effect is poor, and the practicability is not strong

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