Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing optical display device and winding-up roller for producing optical display device

A technology of optical display and manufacturing method, which is applied in the direction of chemical instruments and methods, optics, lamination devices, etc., can solve the problems of easy peeling at the end, and achieve the effects of preventing peeling, preventing the mixing of air bubbles, and preventing scratches

Active Publication Date: 2010-06-23
NITTO DENKO CORP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, on the side of the polarizer on the side of the polarizer protective film (with Figure 4 In the state where the opposite side) is warped, when it is attached to an optical display unit, it is easy to peel off from the end

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing optical display device and winding-up roller for producing optical display device
  • Method for producing optical display device and winding-up roller for producing optical display device
  • Method for producing optical display device and winding-up roller for producing optical display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] In Example 1, a single-sided protective polarizing plate with a polarizer protective film attached to only one side of the polarizing film was cut out from a roll formed by rolling one side of the release film inside. The polarizing plate was bonded to the optical display unit while applying a tension of 50 N / m. The amount of warping toward the release film side of the polarizing plate when cut out was 80 mm. In this Example 1, the variation in the bonding position was as small as ±1 mm or so. In addition, regarding the peeling of the end face, peeling was not confirmed under any circumstances.

Embodiment 2

[0084] In Example 2, a single-sided protective polarizing plate with a polarizer protective film bonded to only one side of the polarizing film was cut out from a roll formed by rolling one side of the release film inside. The polarizing plate was bonded to the optical display unit while applying a tension of 350 N / m. The amount of warping toward the release film side of the polarizing plate when cut out was 80 mm. In this Example 2, the variation in the bonding position was as small as about ±1 mm. In addition, regarding the peeling of the end face, peeling was not confirmed under any circumstances.

Embodiment 3

[0086] In Example 3, a single-sided protective polarizing plate with a polarizer protective film attached to only one side of the polarizing film was cut out from a roll formed by rolling one side of the release film inside. The polarizing plate was bonded to the optical display unit while applying a tension of 500 N / m. The amount of warping toward the release film side of the polarizing plate when cut out was 80 mm. In Example 3, the variation in the bonding position was as small as about ±1 mm. In addition, regarding the peeling of the end face, peeling was not confirmed under any circumstances.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

provided is a method for producing an optical display device capable of effectively preventing the peeling of a polarization plate relative to an optical display unit with a simple structure, and wingding-up roller for producing the optical display device. A polarization plate (32) with a polarizer protective film (37) on a single-side and attached with a separate film (33) on one surface opposite to the polarizer protective film (37) by an adhesive layer (35), is rolled up by using one side of the separate film (33) as an inner side to form a winding-up roller, the polarization plate (32) is released continuously from the winding-up roller, is cut off at the predetermined size, and is attached on the optical display unit. Therefore, by the way that the polarization plate (32) is rolled up by using one side of the separate film (33) as the inner side, when the single-side protection polarization plate (32) warped to one side of the separate film (33) is rolled back, the warping state to one side of the separate film (33) can be maintained well, therefore, the peeling of the polarization plate (32) relative to the optical display unit can be effectively prevented.

Description

technical field [0001] The present invention relates to an optical display device manufacturing method for manufacturing an optical display device by bonding a polarizing plate to an optical display unit, and a roll for optical display device manufacture. Background technique [0002] As an example of a general polarizing plate, a double-sided protection type polarizing plate in which a polarizing plate protective film is bonded to both surfaces of a polarizing film including a film-shaped polarizing plate via an adhesive layer is known. The polarizing film is formed by drying, for example, a polyvinyl alcohol (PVA) film, and a TAC (triacetyl cellulose) film or the like can be used as the polarizer protective film. [0003] In recent years, as thinner and lighter liquid crystal display devices, which are an example of devices using polarizing plates, have become increasingly demanding, thinner and lighter configurations of polarizing plates have also been demanded. Therefor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333B32B37/12B65H18/00B65H20/00
CPCB32B7/02B32B37/12B32B2037/268B65H20/02G02B5/3041
Inventor 山本昌司铃木畅杉野洋一郎木村启介古园井信行
Owner NITTO DENKO CORP