Directional color filter and naked-eye 3D display device

Abstract

The invention provides a directional color filter and a naked-eye 3D display device, comprising a color filter and a directional functional structure layer; the color filter includes a plurality of filter units, and each filter unit includes at least three Filter subunits of different colors; the directional functional structural layer includes a plurality of structural units, each structural unit is correspondingly arranged with a filter unit; each structural unit includes at least three structural subunits; each structural subunit is associated with a filter unit. The photonic units are arranged correspondingly; each structural subunit includes a plurality of nano-diffraction gratings; the nano-diffraction gratings in the same structural sub-unit have different periods and orientation angles, so that the same nano-diffraction grating will not emit two colors of light, resulting in light The problem of crosstalk is eliminated, and the directional color filter is technically easier to implement, so that the multi-viewing angle naked-eye 3D display device without visual fatigue based on the directional backlight technology provided by the present invention is easier to be practically applied.

Description

technical field [0001] The invention relates to the technical field of stereoscopic display, and more specifically, relates to a directional color filter and a naked-eye 3D display device. Background technique [0002] Because the 3D display technology can make the picture more three-dimensional and realistic, so that the audience has an immersive feeling, therefore, the 3D display technology is more and more popular among people. [0003] The principle of 3D display technology is to use people's left and right eyes to receive different images with parallax respectively, and then superimpose the parallax images through the brain to form an image with stereoscopic effects such as front and rear, left and right, up and down, and far and near. Although naked-eye 3D display devices based on the principle of parallax continue to be produced in the prior art, the existing naked-eye 3D display devices have problems such as image crosstalk that easily causes visual fatigue and small...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a directional color filter and a naked-eye 3D display device to solve the technical difficulties in the prior art due to the design and precision machining accuracy of the lenses and prisms of the backlight module. And it is easy to have the problem of light crosstalk

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