JPS61103119A - Manufacture of polarizing plate for stereoscopic image - Google Patents

Abstract

PURPOSE:To eliminate difficulty in adhering two polarizing plates accurately at desired positions where most stereoscopic image is obtained by adhering PVA films which have orthogonal drawing directions to a transparent base from above and below, and thus forming a stereoscopic laminate sheet previously. CONSTITUTION:The drawn PVA films 1 and 2 has the drawing directions 2 and 4 and the transparent base 6 is, for example, a TAC film; and those are adhered together to form the stereoscopic laminate sheet 5. Then, a drawing 7 having a polarizing function is dyed on both top and reverse surfaces of the laminate sheet 5. In this case, the drawing 7 is formed by a photographic resist method. Namely, photosensitive resist is formed on the drawn PVA films 1 and 3, exposure is performed by using a negative, and development is carried out; and a resist removal part, i.g. PVA exposure part is dyed with an iodine or dichroic dye and dried, the resist part is removed, and a transparent protective film is used for protection. In this case, an upper and a lower polarizing picture shift in position from a center line l to left and right respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of practical application] The present invention relates to a polarizing plate for stereoscopic images that allows images to appear three-dimensional when viewed with polarized glasses.

[Conventional technology]

Conventionally, a method for manufacturing a polarizing plate for stereoscopic images has been to prepare two polarizing plates with the same image, and to stack them vertically with a slight shift to the left and right, and to bond them together.

[Problems with Inventiveness and Trying to Solve the Problem] It is necessary to create the upper and lower polarizing plates separately, and it is necessary to place the two polarizing plates precisely in the desired position to obtain the most three-dimensional image. Adhesion was a major obstacle.

[Means for solving problems]

The purpose of the present invention is to solve these problems, and its gist is to create a laminated sheet for stereoscopic drawings in which PVA films with orthogonal stretching directions are attached on the top and bottom through a transparent support. Polarizer F on both the top and bottom of this laminated sheet]
A method for producing a dual-use polarizing plate, which is characterized by dyeing a drawing having an opaque color.

〔Example〕

1 to 3 show embodiments of the present invention.

(11 (3) is a stretched PVA film, (2 bar 4) is the stretching direction.

(6) is a transparent support such as a TAC film, and these are adhered to form a laminate sheet (5) for stereoscopic images.

Next, a drawing (7) having a polarizing function is dyed on both the upper and lower surfaces of this laminated sheet (5).

In this case, the drawing (formed by the photo resist method, that is, a photosensitive resist is formed on the stretched PVA film (1) (3), a negative is applied and the exposure method is applied, and the resist removed part, that is, the PVAg exposed part is After dyeing with a dichroic dye and drying, the resist portion is removed and protected with a transparent protective film.

Here, the relationship between the absorption axis of the lens (9) α of the polarized glasses (8) and the absorption axis of the image of the three-dimensional image polarization=a in this embodiment is as shown in FIG.

The positional relationship between the upper and lower polarized images is shifted left and right from the center line <1).

〔Effect of the invention〕

As described above, in the present invention, first, PVA films whose stretching directions are perpendicular to each other are attached on the top and bottom through a transparent support to prepare an 8# layer sheet for stereoscopic images in advance. This eliminates the difficulty of accurately gluing two polarizing plates at the desired position to create the most three-dimensional image.Then, this laminated sheet is attached using a photoresist method, etc., so that the resist image can be vertically aligned to create the most three-dimensional image. Since the image is formed at a desired position, the positional relationship of one image can be formed very precisely as desired, a three-dimensional image can be obtained, and it can be manufactured more easily than conventional methods.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is an exploded perspective view, Fig. 2 is an overall perspective view, and Fig. 3 shows the absorption axis of a polarizing plate and the absorption axis of polarized glasses in a state of use. It is a relationship diagram. +l) (3)...Stretched PVA film, (2) (4
)...Stretching direction, (5)...Laminated sheet for stereoscopic painting, (
6)...Transparent support, (7)...Drawing. October 26, 1980 Applicant: Arisawa Seisakusho Invention Co., Ltd. 1) -Male

Claims (1)

[Claims] A three-dimensional drawing characterized in that a laminated sheet for three-dimensional drawings is prepared by covering the top and bottom with PVA films whose stretching directions are perpendicular to each other via a transparent support, and then a drawing having a polarizing function is dyed on both the upper and lower surfaces of this laminated sheet. Manufacturing method of polarizing plate for painting.