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Stretchable adhesive film and display device comprising same

A display device, adhesive film technology, applied in the direction of transportation and packaging, film/sheet adhesive, adhesive type, etc., can solve difficult recovery, adhesive and substrate do not have stretchability and strain Characteristics and other issues, to achieve the effect of excellent ability, excellent durability, and excellent adhesive strength

Active Publication Date: 2020-12-25
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Meanwhile, existing adhesives and substrates used as supports for displays do not have excellent stretchability and strain characteristics, and especially in structures in which adhesives and substrates are laminated, it is difficult to recover when deformation occurs

Method used

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  • Stretchable adhesive film and display device comprising same
  • Stretchable adhesive film and display device comprising same

Examples

Experimental program
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Embodiment approach

[0126] Hereinafter, the present disclosure will be described in detail with reference to the embodiments so that those skilled in the art can easily implement the present disclosure. However, the present disclosure can be presented in various forms and is not limited to the embodiments described herein.

preparation example

[0128] The components, weight ratios, and thicknesses of the base layer and the first adhesive layer of the stretchable adhesive films used as Examples and Comparative Examples of the present application are described in Table 1 below.

[0129] [Table 1]

[0130]

[0131] In Table 1, Dow Corning's Xiameter 9050 30P material was used as the liquid silicone rubber (LSR), which means that, as a two-component type, the main components were mixed in ratios of 20:1, 10:1 and 5:1 respectively. Divided into A (Part A) and Curing Agent B (Part B), TPU means a polyurethane-based material that is a product of LG Chem.

Embodiment 1

[0133] As a base layer, the components described in Example 1 of Table 1 were mixed in the described weight ratio, and the resultant was stirred and defoamed. After that, the mixed solution was coated on the fluorine release surface of TACS's TS502 (fluorine-based release film), and then the resultant was dried in an oven at 150°C for 5 minutes so that the final thickness became Example 1 of Table 1 The thickness described in.

[0134]After that, as the first adhesive layer, a curing agent was added to the acrylic resin in which the components described in Example 1 of Table 1 were polymerized at the described weight ratio, and then methyl ethyl ketone (MEK) was added thereto so that The solid content became 20%, and the resultant was stirred and defoamed. After that, the mixed solution was coated on the silicone release surface of RF02N (silicone release film) of SKC hi-tech & marketing (formerly SKCHaas), and the resultant was dried in an oven at 120°C for 3 minutes so that...

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Abstract

The present invention relates to a stretchable adhesive film and a display device comprising same, the stretchable adhesive film satisfying formula 1 and comprising a base material layer comprising anelastomer, and a first adhesive layer provided on one surface of the base material layer.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application No. 10-2018-0064864 filed with the Korean Intellectual Property Office on June 5, 2018, the entire contents of which are incorporated herein by reference. [0002] The present application relates to a stretchable adhesive film and a display device comprising the same. Background technique [0003] As display devices in this field, unbreakable displays, curved displays, curved displays, foldable displays, rollable displays, and the like have been developed. [0004] The current commercialization stage is a curved display type mobile field, and a mobile field using a foldable display is expected to appear in an all-round way. Furthermore, the pace of development in the electrical field using pOLEDs is also remarkable. [0005] In particular, stretchable displays have been developed recently, and demand for them is increasing. In order for a display to be stretchable, elongatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J133/00C09J183/04C09J175/04C09J11/00
CPCC09J183/04C09J175/04C08G77/04C08G77/20C08G77/80C08G77/24C09J183/08C09J2203/318C09J2301/312C09J2301/124C09J2433/00C09J2475/00C09J2483/006C09J2423/166C09J2483/00C09J2421/00C09J2409/006C09J7/22C08F220/1808C09J133/08C09J2453/006C08F220/06C08F220/20C09J7/241C09J133/00C09J11/00C09J7/25C09J7/385C09J2301/122C09J2301/308B32B7/06B32B7/12B32B25/08B32B25/16B32B25/20B32B2250/03B32B2307/546B32B2307/732B32B2405/00B32B2457/206Y10T428/1457
Inventor 刘韩率金贤哲
Owner LG CHEM LTD
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