Adhesive-layer-quipped transparent surface material, display device, and methods for producing same

A technology for a display device and an adhesive layer, which is applied in the directions of lamination devices, adhesive products, identification devices, etc., can solve the problems of complicated lamination of display panels and protective plates, and achieve the effect of not easy to leave gaps and easy lamination.

Inactive Publication Date: 2013-08-14
AGC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the bonding process needs to be carried out twice, so the bonding of the display panel and the protective plate is relatively complicated

Method used

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  • Adhesive-layer-quipped transparent surface material, display device, and methods for producing same
  • Adhesive-layer-quipped transparent surface material, display device, and methods for producing same
  • Adhesive-layer-quipped transparent surface material, display device, and methods for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0314] In the following, an example of implementation will be shown to confirm the effectiveness of the present invention, but it should not be construed as being limited thereto.

[0315] (number average molecular weight)

[0316] The number average molecular weight of the oligomer was calculated as the number average molecular weight in terms of polystyrene using a GPC (gel permeation chromatography) measuring device (manufactured by Tosoh Corporation, HLC-8020).

[0317] (viscosity)

[0318] The viscosity of the photocurable resin composition was measured with an E-type viscometer (manufactured by Toki Sangyo Co., Ltd. (Toki Sangyo Co., Ltd.), RE-85U).

[0319] (haze value)

[0320] The haze value was measured according to ASTM D1003 using Haze-gard II manufactured by Toyo Seiki Seisakusho Co., Ltd. (Toyo Seiki Seisakusho Co., Ltd.).

[0321] (shear modulus of elasticity)

[0322] The shear elastic modulus of the layered part of the adhesive layer after curing was measu...

example 1～20

[0325] (transparent surface material)

[0326]On the periphery of one surface of soda lime glass with a length of 100 mm, a width of 100 mm, and a thickness of 3 mm, a black-pigmented ceramic printing is used to form a light-shielding printed part in the shape of a picture frame, so that the length of the light-transmitting part is 68 mm and the width is 68mm. Next, an antireflection film (REALOOK X4001 manufactured by NOF Corporation (NOF Corporation)) was bonded to the entire back surface of the light-shielding printed part in a state where the protective film was attached to prepare a protective sheet A.

[0327] (support surface material)

[0328] On one side of a transparent plate made of soda lime glass with a length of 100 mm, a width of 100 mm, and a thickness of 3 mm, a protective film with a length of 130 mm, a width of 130 mm, and a thickness of 0.075 mm was attached with a rubber roller so that the adhesive surface of the protective film was in contact with the gl...

example 1～7

[0336] (Photocurable resin composition for layered portion formation)

[0337] By mixing bifunctional polypropylene glycol (number-average molecular weight calculated from hydroxyl value: 4000) and isophorone diisocyanate in a molar ratio of 4 to 5 with molecular terminals modified by ethylene oxide, in the presence of a tin compound catalyst In the presence of a reaction at 70°C, 2-hydroxyethyl acrylate was added to the resulting prepolymer at a molar ratio of approximately 1:2 and reacted at 70°C to obtain a urethane acrylate oligomer object (hereinafter referred to as UA-1). UA-1 has two curable groups, a number average molecular weight of about 24,000, and a viscosity of about 830 Pa·s at 25°C.

[0338] 40 parts by mass of UA-1, 30 parts by mass of 2-hydroxybutyl methacrylate (manufactured by Kyoeisha Chemical Co., Ltd., Light Ester HOB), and 30 parts by mass of n-dodecyl methacrylate were uniformly Mixed, 0.5 mass parts of bis (2,4,6-trimethylbenzoyl) phenyl phosphine o...

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Abstract

Provided is an adhesive layer-equipped transparent surface material that can easily be bonded to another surface material (such as a display panel) and that, when bonded to another surface material, is less likely to have voids left at the interface between the adhesive layer and another surface material. An adhesive layer-equipped transparent surface material 1 comprises an adhesive layer 14 formed on at least one surface of a protective plate 10 (a transparent surface material), wherein the adhesive layer 14 has a layer portion 18 spreading over the surface of the protective plate 10 and a barrier portion 20 surrounding the periphery of the layer portion 18; and the layer portion 18 is made of a cured product of a layer portion-forming curable resin composition comprising a curable compound (II) and a non-curable oligomer (D).

Description

technical field [0001] The present invention relates to a transparent surface material with an adhesive layer, a display device in which a display panel is protected by the transparent surface material, and their manufacturing methods. Background technique [0002] As a display device in which a display panel is protected by a transparent surface material (protective plate), the following display devices are known. For example, a display device in which a display panel and a protective plate are bonded together via an adhesive sheet (see Patent Documents 1 and 2). [0003] The bonding of the display panel and the protective plate may be performed by the following method so that no void remains at the interface between the display panel or the protective plate and the adhesive sheet. [0004] For example, it is a method of returning the display panel and the protective plate to the atmospheric pressure atmosphere after bonding the display panel and the protective plate throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B3/02B32B27/00C09J4/00C09J7/02G09F9/00C09J7/22C09J7/38
CPCC09J4/00B32B7/12B32B3/10B32B3/02B32B2307/412C09J7/0217B32B37/14C09J2203/318C09J2471/00C09J2475/00B32B2405/00B32B2457/20C09J7/38C09J7/22Y10T428/1462Y10T156/10Y10T428/24777C09J2301/21C09J2301/204C09K2323/05C09K2323/059C09J7/385C09J7/30B32B27/06G09F9/00
Inventor 新山聪青木直子铃木丰一对马齐
Owner AGC INC
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