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Adhesive composition for foldable display, adhesive film using same, and foldable display comprising same

An adhesive film and display technology, applied in the direction of film/sheet adhesive, non-polymer adhesive additive, adhesive type, etc., can solve the problem of display device damage, etc., and achieve increased folding characteristics , high-resolution, fast-response touch effects

Active Publication Date: 2021-09-21
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Meanwhile, deformable display devices have the following problems: each configuration of the display device may be damaged due to deformation, and therefore, each configuration of such a display device needs to satisfy folding reliability and stability.

Method used

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  • Adhesive composition for foldable display, adhesive film using same, and foldable display comprising same
  • Adhesive composition for foldable display, adhesive film using same, and foldable display comprising same
  • Adhesive composition for foldable display, adhesive film using same, and foldable display comprising same

Examples

Experimental program
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Effect test

Embodiment 1

[0098] 1.1 copolymer preparation

[0099] The introduction of 98 parts by weight of Acryhexyl acrylate (Ethylhexyl Acrylate, Ethylhexyl acrylate, ETHYLHEXYL Acrylate, ETHYLHEXYL Acrylate, ETHYLHELHELIC ACIC, AA) is introduced into the 1L reactor having a cooling device to be easily controlled. The monomer mixture (100 parts by weight) was introduced into methyl ethyl ketone (MEK) as a solvent therefrom. Next, the reactor was purged with a nitrogen for about 1 hour to remove oxygen, and the reactor temperature was maintained at 62 ° C. After homogenization of the mixture, an azo diisobikino (N-DDM) which is introduced into a reactive initiator as a reaction initiator is introduced into a nitric dodecanol (N-DDM) which is a chain transfer agent as a chain transfer agent, and the mixture is made reaction. After the reaction, the resultant was diluted with MEK to prepare a copolymer having a weight average molecular weight of 200,000 g / mol.

[0100] 1.2 Preparation of Adhesive Compo...

Embodiment 2

[0105] The adhesive film was prepared in the same manner as in Example 1, and there was a difference in the use of 5 parts by weight of LitFsi instead of 3 parts by weight of ion salt additive Litfsi.

Embodiment 3

[0107] The adhesive film was prepared in the same manner as in Example 1, which is different from using a 5 parts by mass of NATFSI instead of 3 parts by weight of ion salt additive Litfsi.

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Abstract

The present application provides an adhesive composition for a foldable display, an adhesive film using the same, and a foldable display comprising the same, the adhesive composition comprising: a heat curable resin; an ionic salt; A joint agent wherein the adhesive composition for a foldable display has 10 at -30°C and 60°C after curing 4 Pa to 10 6 Storage modulus in Pa.

Description

Technical field [0001] The present application relates to a binder composition for foldable displays, using its adhesive film and a foldable display comprising the adhesive composition. [0002] The priority and interests of Korean Patent Application No. 10-2018-0013378 submitted to the Korean Intellectual Property Office on 2 February 2018, all of which are incorporated herein by reference. Background technique [0003] With the latest developments of displays related technologies, a display device which is deformable (such as folding, rolling or as a rubber strip is developed) has been studied and developed. These displays can be deformed into a variety of shapes, and therefore, it can be satisfied that the use phase is a larger display and for the need for both portability of the smaller display. [0004] The deformable display device can be deformed into various shapes in response to user needs or according to the need to use the display device, and deform it into a preset sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/06C09J201/00C09J7/10C09J7/30
CPCC09J201/00C09J133/064C09J7/30C09J2433/00C09J2203/318C09J2301/408C08K5/19C08K5/095C09J9/00C09J11/06C09J7/00C09J11/04C09J133/08
Inventor 宋喜朴现圭朴柄洙金贤哲李熙济
Owner LG CHEM LTD
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