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Optical adhesive composition, optical adhesive film and optical laminate

A technology of optical glue and composition, applied in the field of optical laminates, can solve the problems of easy generation of air bubbles, inability to fit closely, height difference, etc., and achieve the effect of good light penetration

Inactive Publication Date: 2016-12-07
KOATECH TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of existing optical adhesives to bond laminates often faces the problem that air bubbles are easily generated and cannot be bonded tightly
This is because the existing optical glue cannot effectively fill the height difference caused by the decorative film, frame edge film and other film layers on the edge of the laminated board due to the design and application requirements.

Method used

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  • Optical adhesive composition, optical adhesive film and optical laminate
  • Optical adhesive composition, optical adhesive film and optical laminate
  • Optical adhesive composition, optical adhesive film and optical laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Under the yellow light laboratory that cuts off ultraviolet rays, add 100 parts by weight of acrylic polymer, 0.07 parts by weight of crosslinking agent, 1 part by weight of acrylic oligomer A, and 5 parts by weight of photoinitiator , and stirred at 25° C. and 400 rpm for 30 minutes to form the optical adhesive composition of Example 1.

[0054] Next, the obtained optical adhesive composition was coated on a PET release film (Nan Ya Company, model: L150A) with a doctor blade. Subsequently, the coated PET release film was placed in an oven at 100° C. and dried for 3 minutes to obtain a PET release film having an optical adhesive film with a dry film thickness of 175 μm thereon. Then, after it was taken out, another release film (Nan Ya Company, model: H8A0A) was covered on the optical adhesive film to form the optical laminate of Example 1.

Embodiment 2～ Embodiment 4

[0056] The optical adhesive compositions and optical laminates of Examples 2 to 4 are manufactured according to the same manufacturing procedure as that of Example 1. The difference is that the addition amounts of the components used are different, and the detailed addition amounts are as follows: Table 1 shows.

Embodiment 5～ Embodiment 6

[0058] According to the same manufacturing process as in Example 1, the optical adhesive composition and optical laminate of Example 5 to Example 6 are manufactured, the difference is that the dry film thickness of the optical adhesive film is different, and its detailed thickness is shown in Table 1 shown.

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Abstract

The invention provides an optical adhesive composition, an optical adhesive film and an optical laminate. The optical adhesive composition is provided. The optical adhesive composition includes an acrylic-based polymer having at least one group selected from hydroxyl, amino and carboxylic acid group, a crosslinking agent having isocyanate groups, a acrylic-based oligomer having at least one unsaturated group and a photo initiator, wherein based on 100 parts by weight of the acrylic-based polymer, the content of the acrylic-based oligomer is 1 part by weight to 7 parts by weight. Therefore, the invention achieves a balance in an ink gap absorbency and a die-cutting property and is adapted to be applied in an optical laminate.

Description

technical field [0001] The present invention relates to an optical adhesive composition, an optical adhesive film and an optical laminate, in particular to a photocurable optical adhesive composition, an optical adhesive film formed from the photocurable optical adhesive composition, and an optical adhesive film using the photocurable optical adhesive composition. Optical laminates with optical film. Background technique [0002] The rapid growth trend of the thin film transistor display market has driven the development of technologies such as touch panels, wherein touch panel displays include touch panels and liquid crystal panels. At present, in the industry, transparent optical adhesives are usually used to bond the film layers in the liquid crystal panel, the liquid crystal panel and the touch panel, and the film layers in the touch panel. However, the use of existing optical adhesives to bond laminates often faces the problem that air bubbles are easily generated and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/00C09J11/06C09J11/08C09J7/02G02B1/10
CPCC08L33/06C08J3/28C09J133/14C08J2333/08C08J2333/14C09J133/08
Inventor 徐国腾吕志聪萧泽宏林亿昌陈嘉峰锺利正
Owner KOATECH TECH CORP
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