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Beam expanding optical film, display device and multi-directional beam expanding optical film

An optical film and grating film technology, applied in optics, optical components, instruments, etc., can solve the problems of depth of field and visual fatigue of binocular convergence and focus, and achieve the effect of improving user experience, reducing overall weight, and increasing viewing angle.

Active Publication Date: 2021-11-02
FAITH BILLION TECH DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a beam expander optical film, a display device and a multi-directional beam expander optical film to solve the problem of visual fatigue caused by depth of field and binocular convergence and focus in the 3D display technology in the prior art

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  • Beam expanding optical film, display device and multi-directional beam expanding optical film

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Embodiment Construction

[0054] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0055] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0056] In the present invention, unless stated otherwise, the used orientation words such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the parts themselves in the vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" refer to the inner and outer relative to the outline of each component itself, but the above orientation words ...

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Abstract

The invention provides a beam expanding optical film, a display device and a multi-direction beam expanding optical film. The beam expanding optical film includes: a multi-focus film layer; and an optical grating film layer which is located on the light emitting side of the multi-focus film layer, wherein the surface of the side, away from the multi-focus film layer, of the optical grating film layer is at least provided with a plane area and a beam expanding face inclined to the plane area, so that light emitted by the pixels can be imaged on multiple planes through the multi-focus film layer and the optical grating film layer in sequence, and the image of the pixel can be seen in a plurality of directions. According to the invention, the problem of visual fatigue caused by depth-of-field and binocular convergence focusing in the 3D display technology in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of optical imaging equipment, in particular to a beam expanding optical film, a display device and a multi-directional beam expanding optical film. Background technique [0002] The current three-dimensional display device, taking the naked-eye 3D display as an example, there are many ways to realize the naked-eye 3D display, and the integrated imaging naked-eye 3D display technology with the lenticular lens film as the main component is currently a widely used 3D display method. However, the effect of the 3D display mode of the lenticular grating is subject to many restrictions, such as the resolution of the display and the intercept of the lenticular grating largely limit the resolution and the number of viewpoints of the 3D display, and the 3D display realized by the lenticular grating has Crosstalk between viewpoints, because the lenticular grating is only divided into viewpoints, using the parallax imag...

Claims

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Application Information

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IPC IPC(8): G02B27/42G02B30/26
CPCG02B27/42G02B27/4205G02B30/26
Inventor 卢增祥
Owner FAITH BILLION TECH DEV LTD