CN114774012A - Adhesive tape and display device - Google Patents

Adhesive tape and display device Download PDF

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Publication number
CN114774012A
CN114774012A CN202210344773.6A CN202210344773A CN114774012A CN 114774012 A CN114774012 A CN 114774012A CN 202210344773 A CN202210344773 A CN 202210344773A CN 114774012 A CN114774012 A CN 114774012A
Authority
CN
China
Prior art keywords
adhesive
foam layer
adhesive tape
tape
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210344773.6A
Other languages
Chinese (zh)
Inventor
吴超凡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou China Star Optoelectronics Technology Co Ltd
Original Assignee
Suzhou China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou China Star Optoelectronics Technology Co Ltd filed Critical Suzhou China Star Optoelectronics Technology Co Ltd
Priority to CN202210344773.6A priority Critical patent/CN114774012A/en
Publication of CN114774012A publication Critical patent/CN114774012A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/26—Porous or cellular plastics
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/24—Presence of a foam
    • C09J2400/243—Presence of a foam in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Abstract

The application discloses an adhesive tape and a display device, wherein the adhesive tape comprises a foam layer, and a first adhesive and a second adhesive which are arranged on two sides of the foam layer; the first adhesive and the second adhesive are mutually bonded. The display device comprises the adhesive tape, a display panel and a frame; the adhesive tape is arranged between the display panel and the frame and used for bonding the display panel and the frame. The technical effect of this application lies in, ensures the viscidity and the dustproof and waterproof function of sticky tape.

Description

Adhesive tape and display device
Technical Field
The application relates to the field of display, concretely relates to adhesive tape and display device.
Background
At present, the display module in the mobile phone industry mainly has three bonding modes, namely foam adhesive (gutta-percha) bonding, solid optical adhesive (OCA) full bonding and liquid optical adhesive (OCR) full bonding.
The existing adhesive tape for fixing the display panel is all foam cotton, and mainly comprises three layers: the upper rubber layer, the foam layer and the lower rubber layer.
However, the foam is easy to separate in the using process of the foam, and particularly in a curved surface module product, the foam is easy to separate due to the stress between the glass and the rubber frame.
In the process of research and practice of the prior art, the inventor of the application finds that in the previous case of foam-cotton glue separation, foam-cotton substrate separation is realized, and double-sided glue is not separated.
Disclosure of Invention
The utility model provides an aim at provides an adhesive tape and display device, can solve current bubble celloidin because the separation appears in the cotton layer of bubble and then leads to technical problem such as bubble celloidin dustproof and waterproof inefficacy.
In order to achieve the purpose, the application provides an adhesive tape which comprises a foam layer, and a first adhesive and a second adhesive which are arranged on two sides of the foam layer; the first adhesive and the second adhesive are mutually bonded.
Furthermore, the foam layer is provided with a through hole which penetrates through the foam layer; the first adhesive extends into the through hole and is bonded with the second adhesive.
Further, the circumferential length of the first adhesive is greater than that of the foam layer; the circumferential length of the second adhesive is greater than that of the foam layer; the first adhesive and the second adhesive are mutually bonded at the periphery of the foam layer.
Furthermore, the foam layer is provided with a fracture which penetrates through the foam layer; the first adhesive extends into the fracture and is bonded with the second adhesive.
Furthermore, the material of the foam layer is one of polyethylene, polyurethane and ethylene-ethyl acetate-ester copolymer.
Furthermore, the first adhesive and the second adhesive are made of acrylic adhesives.
Further, the adhesive tape further comprises two release films which are respectively arranged on one sides, far away from the foam layer, of the first adhesive and the second adhesive.
Furthermore, the adhesive tape further comprises a release film, and the release film is attached to one side, away from the foam layer, of the bonding part of the first adhesive and the second adhesive on the periphery of the foam layer.
To achieve the above object, the present application also provides a display device including the adhesive tape as described above.
Further, the display device further comprises a display panel and a frame; the adhesive tape is arranged between the display panel and the frame and used for bonding the display panel and the frame.
The technical effect of this application lies in, fills the gluing agent in the place of longitudinal separation or around in the cotton layer of bubble in the middle of the sticky tape for keep the adhesion state between the gluing agent of its upper and lower both sides, when effectively preventing the fracture condition to appear in the centre on the cotton layer of bubble, the gluing agent of bonding both sides still can be adhered in bonding portion, and then ensures the cohesiveness and the dustproof and waterproof nature of sticky tape. The adhesive tape is used for bonding the display panel and the frame, so that the bonding property and the dustproof and waterproof functions can be effectively guaranteed, and the conditions of fracture and the like of the foam layer are not limited.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a first structure of an adhesive tape provided in an embodiment of the present application;
FIG. 2 is a second structural view of an adhesive tape provided in the embodiment of the present application;
FIG. 3 is a third schematic view of an adhesive tape provided in the embodiments of the present application;
fig. 4 is a first schematic diagram of a display device provided in an embodiment of the present application;
fig. 5 is a second schematic diagram of a display device provided in an embodiment of the present application;
fig. 6 is a third schematic view of a display device provided in an embodiment of the present application.
Description of the reference numerals:
100. an adhesive tape; 200. a display panel; 300. a frame;
110. soaking a cotton layer; 120. a first adhesive; 130. a second adhesive; 140. a first release film; 150. a second release film; 160. a third release film; 170. a fourth release film;
10. a bonding portion;
111. a through hole; 112. and (5) breaking.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present application, are given by way of illustration and explanation only, and are not intended to limit the present application. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides an adhesive tape and a display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
As shown in fig. 1 to 3, the present embodiment provides an adhesive tape 100, where the adhesive tape 100 includes a foam layer 110, and a first adhesive 120 and a second adhesive 130 located on upper and lower sides of the foam layer 110, and the first adhesive 120 and the second adhesive 130 are adhered to each other. The following is a detailed description of three tape examples.
As shown in fig. 1, a through hole 111 is formed in the foam layer 110, the through hole 111 vertically penetrates through the foam layer 110, and the through hole 111 provides a connection channel for the first adhesive 120 and the second adhesive 130 located at two sides of the foam layer 110. In this embodiment, taking the first adhesive 120 extending into the through hole 111 to adhere to the second adhesive 130 as an example, in other embodiments of the present application, it can be seen that the second adhesive 130 extending into the through hole 111 adheres to the first adhesive 120, that is, the first adhesive 120 and the second adhesive 130 adhere to each other in the through hole 111, so as to ensure that even if the foam layer 110 is broken or the like, the adhesion portion in the through hole 111 can still adhere to the first adhesive 120 and the second adhesive 130, thereby ensuring the adhesiveness and the waterproofness of the tape 100.
As shown in fig. 2, the foam layer 110 is provided with a fracture 112, the fracture 112 longitudinally penetrates through the foam layer 110, and the fracture 112 provides a connection channel for the first adhesive 120 and the second adhesive 130 located at two sides of the foam layer 110. In this embodiment, taking the first adhesive 120 extending into the fracture 112 and adhering to the second adhesive 130 as an example, in other embodiments of the present application, it can be considered that the second adhesive 130 extending into the fracture 112 and adhering to the first adhesive 120, that is, the first adhesive 120 and the second adhesive 130 adhering in the fracture 112 ensure that even if the foam layer 110 is broken, the adhering portion in the fracture 112 can still adhere to the first adhesive 120 and the second adhesive 130, thereby ensuring the adhesiveness and the water resistance of the tape 100.
As shown in fig. 3, the circumferential length of the first adhesive 120 is greater than the circumferential length of the foam layer 110, and the circumferential length of the second adhesive 130 is greater than the circumferential length of the foam layer 110, that is, the lengths of the first adhesive 120 and the second adhesive 130 are both greater than the length of the foam layer 110 when viewed in a longitudinal cross section, at this time, the first adhesive 120 and the second adhesive 130 are adhered to each other at the periphery of the foam layer 110 to form the adhesive portion 10, that is, the adhesive 120 surrounds the foam layer 110, and at this time, even if the middle of the foam layer 110 is broken, the adhesive portion 10 at the periphery can still adhere the first adhesive 120 and the second adhesive 130, thereby ensuring the adhesiveness and the water resistance of the tape 100.
The three tapes 100 are different only in their patterns, and the material of each layer is the same.
The material of the foam layer 110 is one of Polyethylene (PE), Polyurethane (PU), and Ethylene-ethyl Acetate-ester copolymer (EVA).
The first adhesive 120 and the second adhesive 130 are both made of acrylic adhesives and have good adhesion.
The tape 100 further comprises two release films, and the two release films are respectively arranged on the first adhesive 120, which is far away from the first release film 140 of the foam layer 110, and the second release film 150, which is attached to the second adhesive 130, which is far away from one side of the foam layer 110. The release film is peeled off and attached to other structures when the tape 100 is subsequently applied.
In this embodiment, the adhesive tape 100 shown in fig. 3 may further include two release films, namely, a third release film 160 and a fourth release film 170, outside the bonding portion 10, and these two release films may not be provided.
This embodiment the technical effect of sticky tape lies in, fills the gluing agent in the place of longitudinal separation or around in the cotton layer of bubble in the middle of the sticky tape for keep the adhesion state between the gluing agent of its upper and lower both sides, when effectively preventing the fracture condition in the centre on the cotton layer of bubble, the gluing agent of bonding both sides still can be adhered in bonding portion, and then ensures the cohesiveness and the dustproof and waterproof nature of sticky tape.
As shown in fig. 4 to fig. 6, the present embodiment further provides a display device, which includes the adhesive tape 100, the display panel 200 and the frame 300 disposed on two sides of the adhesive tape 100, wherein the adhesive tape 100 is used to bond the display panel 200 and the frame 300.
The first release film 140 on the periphery of the first adhesive 120 of the tape 100 is torn off and then attached to the display panel 200, and the second release film 150 on the periphery of the second adhesive 130 is torn off and attached to the frame 300, and this attaching sequence can be changed, without limitation.
The Frame 300 includes a Frame (Frame) or a metal Frame (metal), which can be selected according to the actual requirements of the display device. Similarly, the display panel 200 may also be a panel structure such as a liquid crystal panel, and is not limited.
This embodiment display device's technical effect adopts the sticky tape above to bond display panel and frame can effectively ensure cohesiveness and dustproof and waterproof function to do not be restricted to the condition such as the fracture appears in the cotton layer of bubble.
The adhesive tape and the display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. An adhesive tape is characterized by comprising a foam layer, a first adhesive and a second adhesive, wherein the first adhesive and the second adhesive are arranged on two sides of the foam layer;
the first adhesive and the second adhesive are mutually bonded.
2. The adhesive tape of claim 1,
the foam layer is provided with a through hole which penetrates through the foam layer;
the first adhesive extends into the through hole and is bonded with the second adhesive.
3. The adhesive tape of claim 1,
the circumferential length of the first adhesive is greater than that of the foam layer;
the circumferential length of the second adhesive is greater than that of the foam layer;
the first adhesive and the second adhesive are mutually bonded at the periphery of the foam layer.
4. The adhesive tape of claim 1,
the foam layer is provided with a fracture which penetrates through the foam layer;
the first adhesive extends into the fracture and is bonded with the second adhesive.
5. The adhesive tape of claim 1,
the material of the foam layer is one of polyethylene, polyurethane and ethylene-ethyl acetate-ester copolymer.
6. The adhesive tape of claim 1,
the first adhesive and the second adhesive are made of acrylic adhesives.
7. The adhesive tape according to claim 1, further comprising two release films respectively disposed on the sides of the first adhesive and the second adhesive away from the foam layer.
8. The adhesive tape of claim 3, further comprising a release film attached to a side of the first adhesive and the second adhesive away from the foam layer at a bonding position on the periphery of the foam layer.
9. A display device comprising the adhesive tape according to any one of claims 1 to 6.
10. The display device according to claim 9, further comprising a display panel and a frame;
the adhesive tape is arranged between the display panel and the frame and used for bonding the display panel and the frame.
CN202210344773.6A 2022-03-31 2022-03-31 Adhesive tape and display device Pending CN114774012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210344773.6A CN114774012A (en) 2022-03-31 2022-03-31 Adhesive tape and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210344773.6A CN114774012A (en) 2022-03-31 2022-03-31 Adhesive tape and display device

Publications (1)

Publication Number Publication Date
CN114774012A true CN114774012A (en) 2022-07-22

Family

ID=82428116

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210344773.6A Pending CN114774012A (en) 2022-03-31 2022-03-31 Adhesive tape and display device

Country Status (1)

Country Link
CN (1) CN114774012A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011032734A (en) * 2009-07-31 2011-02-17 Tajima Oyo Kako Kk Waterproof material
CN204897812U (en) * 2015-08-05 2015-12-23 广州伟一胶粘制品有限公司 Double faced adhesive tape that contains hole base film
CN106318262A (en) * 2016-10-18 2017-01-11 东莞市纳利光学材料有限公司 Pearl and blue light resistant double-sided adhesive and screen protection film
CN208166909U (en) * 2018-04-08 2018-11-30 京东方科技集团股份有限公司 A kind of foam and display device
CN209260007U (en) * 2018-12-27 2019-08-16 东莞市正贤实业投资有限公司 A kind of acrylic foam tape
CN210163367U (en) * 2019-05-28 2020-03-20 昆山锦悦电子有限公司 Buffering conductive foam
CN213708212U (en) * 2020-11-19 2021-07-16 惠州市新协电声有限公司 Foam adhesive tape applied to LCD module protection

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011032734A (en) * 2009-07-31 2011-02-17 Tajima Oyo Kako Kk Waterproof material
CN204897812U (en) * 2015-08-05 2015-12-23 广州伟一胶粘制品有限公司 Double faced adhesive tape that contains hole base film
CN106318262A (en) * 2016-10-18 2017-01-11 东莞市纳利光学材料有限公司 Pearl and blue light resistant double-sided adhesive and screen protection film
CN208166909U (en) * 2018-04-08 2018-11-30 京东方科技集团股份有限公司 A kind of foam and display device
CN209260007U (en) * 2018-12-27 2019-08-16 东莞市正贤实业投资有限公司 A kind of acrylic foam tape
CN210163367U (en) * 2019-05-28 2020-03-20 昆山锦悦电子有限公司 Buffering conductive foam
CN213708212U (en) * 2020-11-19 2021-07-16 惠州市新协电声有限公司 Foam adhesive tape applied to LCD module protection

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