Method and polaroid for viewing movie by three-dimensional polaroid glasses at optional angle

Abstract

The invention discloses a method and a polaroid for viewing a movie by three-dimensional polaroid glasses at an optional angle. The polarization state change is as follows: linear polarized light emitted from a screen is converted into circular polarized light or elliptical polarized light by a first phase difference membrane, the circular polarized light or elliptical polarized light is converted into reversed circular polarized light or reversed elliptical polarized light by a second phase difference membrane, and the reversed circular polarized light or reversed elliptical polarized light is converted into the linear polarized light to enter the human eyes by an original light plate. The polaroid comprises a first outer protective film, a first phase difference membrane, a second phase difference membrane, the original light plate and a stripping membrane in turn from the top to the bottom, wherein all above structures are in adhesive connection by adhesives. In the invention, the polaroid is formed by superposing two layers of phase difference membranes with a phase difference between different surfaces on the basis of the original light plate, so the conversion between the linear polarized light and the elliptical polarized light or circular polarized light is realized smoothly. Thus, three-dimensional movie can be watched at an optional angle.

Description

technical field [0001] The invention relates to the field of polarizers, in particular to a polarizer capable of watching 3D movies and TVs at a free-angle. Background technique [0002] Existing polarizers for three-dimensional polarized glasses mainly include two layers of triacetate cellulose films and a polyvinyl alcohol film layer bonded between the two. Overrate. Stereoscopic images use the principle that light has a "vibration direction" to decompose the original image. First, the image is divided into two groups of polarized light in the vertical direction and polarized light in the horizontal direction. The lenses (the polarization directions of the polarizing layers of the left and right polarizing lenses are different), can make people's left and right eyes receive two sets of pictures, and then synthesize a three-dimensional image through the brain. Since the screen projects a polarized light source, the light source of each part of the picture has a fixed dire...

AI Technical Summary

Problems solved by technology

The active shutter glasses are also equivalent to a liquid crystal screen, which also includes two polarizers, and when the first polarizer of the glasses forms an angle with the outer polarizer of the TV, the image will be darkened or even blackened , That is to say, when wearing 3D glasses to watch 3D TV, you can only watch it horizontally, not tilted, otherwise you will not be able to enjoy the 3D effect, and even the black phenomenon will be caused by the conflict between the deflection angle of the liquid crystal molecules of the LCD screen and the 3D glasses.

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