JP2021147438A5 - - Google Patents
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- Publication number
- JP2021147438A5 JP2021147438A5 JP2020046531A JP2020046531A JP2021147438A5 JP 2021147438 A5 JP2021147438 A5 JP 2021147438A5 JP 2020046531 A JP2020046531 A JP 2020046531A JP 2020046531 A JP2020046531 A JP 2020046531A JP 2021147438 A5 JP2021147438 A5 JP 2021147438A5
- Authority
- JP
- Japan
- Prior art keywords
- test
- optical film
- pressure
- sensitive adhesive
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 3
- 239000012788 optical film Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
Description
試験片１５Ｂには、粘着剤層付き光学フィルムＢを３２０ｍｍ×５０ｍｍの短冊状に切り出したものを使用した。試験片１５Ｂは、その長辺方向に巻き取られるように、かつＰＥＴ層が内側となるように、両面粘着テープによりローラ４５に固定した。試験は、２５℃の雰囲気下にて、屈曲半径１０ｍｍ、巻取速度５．７ｍ／ｍｉｎの条件で実施した。試験片１５Ｂは、図６（Ａ）の状態からローラ４５が３．３回転するように巻き取られた。連続巻取試験は、粘着剤層付き光学フィルムＢを構成する層に剥がれが発生する、又は、粘着剤層付き光学フィルムＢに顕著な巻き癖が残るまでの巻き取り回数により評価した。なお、巻き取りの回数が１０万回に達した場合は、試験を打ち切った。 As the test piece 15B, a strip of 320 mm×50 mm cut from the pressure-sensitive adhesive layer-attached optical film B was used. The test piece 15B was fixed to the roller 45 with a double-sided adhesive tape so that it could be wound up in its long side direction and the PET layer was on the inside. The test was performed in an atmosphere of 25° C. under conditions of a bending radius of 10 mm and a winding speed of 5.7 m/min. The test piece 15B was wound so that the roller 45 made 3.3 rotations from the state shown in FIG. 6(A). The continuous winding test was evaluated by the number of times of winding until the layers constituting the pressure-sensitive adhesive layer-attached optical film B were peeled off or the pressure-sensitive adhesive layer-attached optical film B had a noticeable curl. The test was terminated when the number of windings reached 100,000 .
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020046531A JP2021147438A (en) | 2020-03-17 | 2020-03-17 | Pressure sensitive adhesive sheet used for laminate inside flexible picture display unit, laminate used for flexible picture display unit and flexible picture display unit |
| PCT/JP2021/009629 WO2021187278A1 (en) | 2020-03-17 | 2021-03-10 | Adhesive sheet used for laminate within flexible image display device, laminate used for flexible image display device, and flexible image display device |
| KR1020227035393A KR20220152390A (en) | 2020-03-17 | 2021-03-10 | Adhesive sheet used for laminates in flexible image display devices, laminates used for flexible image display devices, and flexible image display devices |
| CN202180015059.6A CN115135737A (en) | 2020-03-17 | 2021-03-10 | Adhesive sheet for laminate in flexible image display device, laminate for flexible image display device, and flexible image display device |
| TW110109378A TW202200740A (en) | 2020-03-17 | 2021-03-16 | Adhesive sheet used for laminate within flexible image display device, laminate used for flexible image display device, and flexible image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020046531A JP2021147438A (en) | 2020-03-17 | 2020-03-17 | Pressure sensitive adhesive sheet used for laminate inside flexible picture display unit, laminate used for flexible picture display unit and flexible picture display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2021147438A JP2021147438A (en) | 2021-09-27 |
| JP2021147438A5 true JP2021147438A5 (en) | 2022-10-18 |
Family
ID=77768271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020046531A Pending JP2021147438A (en) | 2020-03-17 | 2020-03-17 | Pressure sensitive adhesive sheet used for laminate inside flexible picture display unit, laminate used for flexible picture display unit and flexible picture display unit |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2021147438A (en) |
| KR (1) | KR20220152390A (en) |
| CN (1) | CN115135737A (en) |
| TW (1) | TW202200740A (en) |
| WO (1) | WO2021187278A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6565129B2 (en) | 2013-02-15 | 2019-08-28 | 東洋紡株式会社 | Image display device |
| KR102352284B1 (en) * | 2015-02-02 | 2022-01-18 | 삼성디스플레이 주식회사 | Rollable display device |
| JP6697359B2 (en) * | 2016-09-16 | 2020-05-20 | リンテック株式会社 | Adhesives for flexible displays, adhesive sheets, flexible laminated members and flexible displays |
| KR20220134663A (en) * | 2017-07-31 | 2022-10-05 | 닛토덴코 가부시키가이샤 | Layered body for flexible image display device, and flexible image display device |
| WO2019026760A1 (en) * | 2017-07-31 | 2019-02-07 | 日東電工株式会社 | Layered body for flexible image display device, and flexible image display device |
| KR102418578B1 (en) * | 2017-12-20 | 2022-07-07 | 엘지디스플레이 주식회사 | Adhesive and Flexible Display Using the Same |
| KR102504138B1 (en) * | 2018-01-04 | 2023-03-02 | 삼성디스플레이 주식회사 | Rollable display device |
| JP7268967B2 (en) * | 2018-06-22 | 2023-05-08 | 日東電工株式会社 | Adhesive layer for flexible image display device, laminate for flexible image display device, and flexible image display device |
-
2020
- 2020-03-17 JP JP2020046531A patent/JP2021147438A/en active Pending
-
2021
- 2021-03-10 WO PCT/JP2021/009629 patent/WO2021187278A1/en active Application Filing
- 2021-03-10 KR KR1020227035393A patent/KR20220152390A/en unknown
- 2021-03-10 CN CN202180015059.6A patent/CN115135737A/en active Pending
- 2021-03-16 TW TW110109378A patent/TW202200740A/en unknown
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