JP2018045213A5 - - Google Patents

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Publication number
JP2018045213A5
JP2018045213A5 JP2016182396A JP2016182396A JP2018045213A5 JP 2018045213 A5 JP2018045213 A5 JP 2018045213A5 JP 2016182396 A JP2016182396 A JP 2016182396A JP 2016182396 A JP2016182396 A JP 2016182396A JP 2018045213 A5 JP2018045213 A5 JP 2018045213A5
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JP
Japan
Prior art keywords
flexible
pressure
sensitive adhesive
flexible member
adhesive layer
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.)
Granted
Application number
JP2016182396A
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Japanese (ja)
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JP6697359B2 (en
JP2018045213A (en
Filing date
Publication date
Priority claimed from JP2016182396A external-priority patent/JP6697359B2/en
Priority to JP2016182396A priority Critical patent/JP6697359B2/en
Application filed filed Critical
Priority to TW106113729A priority patent/TWI753904B/en
Priority to KR1020170068270A priority patent/KR20180030747A/en
Priority to CN202410293742.1A priority patent/CN118085741A/en
Priority to CN202410293911.1A priority patent/CN118085742A/en
Priority to CN201710690877.1A priority patent/CN107828354B/en
Publication of JP2018045213A publication Critical patent/JP2018045213A/en
Publication of JP2018045213A5 publication Critical patent/JP2018045213A5/ja
Publication of JP6697359B2 publication Critical patent/JP6697359B2/en
Application granted granted Critical
Priority to KR1020220038115A priority patent/KR102528272B1/en
Priority to KR1020230055336A priority patent/KR20230061320A/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (11)

フレキシブルディスプレイを構成する一のフレキシブル部材と他のフレキシブル部材とを貼合するためのフレキシブルディスプレイ用粘着剤であって、
−２０℃における貯蔵弾性率Ｇ’（−２０）が、０．１ＭＰａ以上、１ＭＰａ未満であり、
前記貯蔵弾性率Ｇ’（−２０）および４０℃における貯蔵弾性率Ｇ’（４０）に基づいて、以下の式（１）で導き出される弾性率変化率が、３５０％以上、１００００％以下である
ことを特徴とするフレキシブルディスプレイ用粘着剤。
弾性率変化率（％）＝（Ｇ’（−２０）／Ｇ’（４０））×１００ …（１） A flexible display pressure-sensitive adhesive for bonding one flexible member and another flexible member constituting a flexible display,
The storage elastic modulus G ′ (− 20) at −20 ° C. is 0.1 MPa or more and less than 1 MPa,
Based on the storage elastic modulus G ′ (−20) and the storage elastic modulus G ′ (40) at 40 ° C., the elastic modulus change rate derived by the following formula (1) is 350% or more and 10,000% or less. A flexible display pressure-sensitive adhesive.
Elastic modulus change rate (%) = (G ′ (− 20) / G ′ (40)) × 100 (1) ゲル分率が６０％以上、１００％以下であることを特徴とする請求項１に記載のフレキシブルディスプレイ用粘着剤。   The pressure-sensitive adhesive for flexible displays according to claim 1, wherein the gel fraction is 60% or more and 100% or less. 前記フレキシブルディスプレイ用粘着剤の主ポリマーのガラス転移温度（Ｔｇ）が、−８０℃以上、−４０℃以下であることを特徴とする請求項１または２に記載のフレキシブルディスプレイ用粘着剤。   The adhesive for flexible displays according to claim 1 or 2, wherein the glass transition temperature (Tg) of the main polymer of the adhesive for flexible displays is -80 ° C or higher and -40 ° C or lower. フレキシブルディスプレイを構成する一のフレキシブル部材と他のフレキシブル部材とを貼合するための粘着剤層を有する粘着シートであって、
前記粘着剤層が、請求項１〜３のいずれか一項に記載のフレキシブルディスプレイ用粘着剤からなる
ことを特徴とする粘着シート。 A pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer for bonding one flexible member and another flexible member constituting a flexible display,
The said adhesive layer consists of an adhesive for flexible displays as described in any one of Claims 1-3, The adhesive sheet characterized by the above-mentioned. 前記粘着シートが、２枚の剥離シートを備えており、
前記粘着剤層が、前記２枚の剥離シートの剥離面と接するように前記剥離シートに挟持されている
ことを特徴とする請求項４に記載の粘着シート。 The pressure-sensitive adhesive sheet includes two release sheets,
The pressure-sensitive adhesive sheet according to claim 4, wherein the pressure-sensitive adhesive layer is sandwiched between the release sheets so as to be in contact with the release surfaces of the two release sheets. フレキシブルディスプレイを構成する一のフレキシブル部材および他のフレキシブル部材と、
前記一のフレキシブル部材と前記他のフレキシブル部材とを互いに貼合する粘着剤層と
を備えたフレキシブル積層部材であって、
前記粘着剤層が、請求項４または５に記載の粘着シートの粘着剤層である
ことを特徴とするフレキシブル積層部材。 One flexible member and another flexible member constituting the flexible display;
A flexible laminated member comprising an adhesive layer that bonds the one flexible member and the other flexible member together,
The flexible laminated member, wherein the pressure-sensitive adhesive layer is a pressure-sensitive adhesive layer of the pressure-sensitive adhesive sheet according to claim 4 or 5. 前記一のフレキシブル部材および前記他のフレキシブル部材の少なくとも一方が、フレキシブルな表示素子であることを特徴とする請求項６に記載のフレキシブル積層部材。   The flexible laminated member according to claim 6, wherein at least one of the one flexible member and the other flexible member is a flexible display element. 前記一のフレキシブル部材および前記他のフレキシブル部材のヤング率が、それぞれ０．１〜１０ＧＰａであることを特徴とする請求項６または７に記載のフレキシブル積層部材。   8. The flexible laminated member according to claim 6, wherein Young's modulus of the one flexible member and the other flexible member is 0.1 to 10 GPa, respectively. 前記一のフレキシブル部材および前記他のフレキシブル部材の厚さが、それぞれ１０〜３０００μｍであることを特徴とする請求項６〜８のいずれか一項に記載のフレキシブル積層部材。   The thickness of said 1 flexible member and said other flexible member is 10-3000 micrometers, respectively, The flexible laminated member as described in any one of Claims 6-8 characterized by the above-mentioned. 前記一のフレキシブル部材と前記他のフレキシブル部材との間における層間密着力が、１〜３０Ｎ／２５ｍｍであることを特徴とする請求項６〜９のいずれか一項に記載のフレキシブル積層部材。   10. The flexible laminated member according to claim 6, wherein an interlayer adhesion between the one flexible member and the other flexible member is 1 to 30 N / 25 mm. 請求項６〜１０のいずれか一項に記載のフレキシブル積層部材を備えたことを特徴とするフレキシブルディスプレイ。   A flexible display comprising the flexible laminate member according to claim 6.
JP2016182396A 2016-09-16 2016-09-16 Adhesives for flexible displays, adhesive sheets, flexible laminated members and flexible displays Active JP6697359B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2016182396A JP6697359B2 (en) 2016-09-16 2016-09-16 Adhesives for flexible displays, adhesive sheets, flexible laminated members and flexible displays
TW106113729A TWI753904B (en) 2016-09-16 2017-04-25 Adhesive for flexible display, adhesive sheet, flexible laminated member, and flexible display
KR1020170068270A KR20180030747A (en) 2016-09-16 2017-06-01 Adhesive for flexible display, adhesive sheet, flexible laminate member and flexible display
CN202410293742.1A CN118085741A (en) 2016-09-16 2017-08-14 Adhesive for flexible display, adhesive sheet, flexible laminate member, and flexible display
CN202410293911.1A CN118085742A (en) 2016-09-16 2017-08-14 Adhesive for flexible display, adhesive sheet, flexible laminate member, and flexible display
CN201710690877.1A CN107828354B (en) 2016-09-16 2017-08-14 Adhesive for flexible display, adhesive sheet, flexible laminate member, and flexible display
KR1020220038115A KR102528272B1 (en) 2016-09-16 2022-03-28 Adhesive for flexible display, adhesive sheet, flexible laminate member and flexible display
KR1020230055336A KR20230061320A (en) 2016-09-16 2023-04-27 Adhesive for flexible display, adhesive sheet, flexible laminate member and flexible display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016182396A JP6697359B2 (en) 2016-09-16 2016-09-16 Adhesives for flexible displays, adhesive sheets, flexible laminated members and flexible displays

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2020033627A Division JP7069234B2 (en) 2020-02-28 2020-02-28 Adhesive sheet for flexible display, flexible laminated member and flexible display

Publications (3)

Publication Number Publication Date
JP2018045213A JP2018045213A (en) 2018-03-22
JP2018045213A5 true JP2018045213A5 (en) 2018-10-11
JP6697359B2 JP6697359B2 (en) 2020-05-20

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JP (1) JP6697359B2 (en)
KR (3) KR20180030747A (en)
CN (3) CN118085742A (en)
TW (1) TWI753904B (en)

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