Polarizer outside protection film, polarizing plate and liquid crystal display element

A technology of liquid crystal display elements and polarizing elements, which is applied in the direction of optical elements, polarizing elements, optics, etc., can solve the problems of poor adhesion and the use of cellulose triacetate, etc., and achieve the effects of improving adhesion, increasing strength, and high transparency

Inactive Publication Date: 2010-08-04
JIRO CORP PLAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since these resins do not have a hydrophilic group, they have poor adhesion to the polyvinyl alcohol hydrophilic resin constituting the polarizing element, and because of this disadvantage, they cannot be directly used as a substitute for cellulose triacetate.

Method used

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  • Polarizer outside protection film, polarizing plate and liquid crystal display element
  • Polarizer outside protection film, polarizing plate and liquid crystal display element
  • Polarizer outside protection film, polarizing plate and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] The alkalized polarizer protective film of sample B1 and the above polarizer were cut into a size of 18 cm × 5 cm, and they were bonded through a polyvinyl alcohol aqueous solution adhesive with a solid content concentration of 2% by mass. Lamination is carried out while removing excess adhesive and air bubbles with a hand roller. The inserted at 2kg / cm 2 Furthermore, it dried at 80 degreeC in the pressurized laminator, and obtained the laminated body 1. In this lamination, the cellulose triacetate surface treatment layer of sample B1 was bonded to the above-mentioned polarizing element.

Embodiment 2

[0107] The alkalized protective film of the polarizing element of sample B2 was bonded to the above-mentioned polarizing element in the same manner as in Example 1 above to obtain a laminate 2 . In this lamination, the cellulose triacetate surface-treated layer of sample B2 was bonded to the above-mentioned polarizing element.

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Abstract

The objective of the present invention is to provide a novel polarizer outside protection film having high transparency, configured to the exterior face side of the liquid crystal display element and which easy bonding processing to the polarizer element composed of polyvinyl alcohol has been performed to; a polarizing plate having the polarizer outside protection film; and a liquid crystal display element with the polarizing plate. The inventive polarizer outside protection film is configured at the exterior face side of the liquid crystal display element, characterized in that it has a substrate layer made of lucite, and a cellulose ester surface treatment layer formed on the inner face side of the substrate layer. The cellulose ester surface treatment layer is formed by contacting the surface processing agent containing cellulose ester and solvent with the inner face of the substrate layer. The synthetic resin constituting the substrate layer is selected from at least one kind of acrylic acid resin, polycarbonate resin, polypropylene resin, cycloolefin resin and polyethylene terephthalate resin.

Description

technical field [0001] The present invention relates to a protective film on the outer surface of a polarizing element, a polarizing plate provided with the outer protective film of the polarizing element, and a liquid crystal display element equipped with the polarizing plate. Background technique [0002] In recent years, liquid crystal display devices (LCDs) have been widely used instead of CRTs because of their thinness, light weight, and low power consumption. The field of application of liquid crystal display elements has gradually expanded from small products such as electronic computers and clocks to large products such as automotive measuring instruments, PC monitors, and televisions. [0003] Such as Figure 6 As shown, a general liquid crystal display element 21 configured in a liquid crystal display device includes: a liquid crystal cell 25 in which a liquid crystal layer 27 is sandwiched by transparent medium layers 26 (such as glass) on both sides; The polariz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10G02B5/30G02F1/1335G02B1/14
CPCB32B7/02B32B2307/42B32B2329/04G02B5/3033G02F1/133528G02B1/14G02F1/133519
Inventor 长村惠弌
Owner JIRO CORP PLAN
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