JP2019003648A - タッチセンサを含むフレキシブル表示装置の製造方法 - Google Patents
タッチセンサを含むフレキシブル表示装置の製造方法 Download PDFInfo
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- JP2019003648A JP2019003648A JP2018114201A JP2018114201A JP2019003648A JP 2019003648 A JP2019003648 A JP 2019003648A JP 2018114201 A JP2018114201 A JP 2018114201A JP 2018114201 A JP2018114201 A JP 2018114201A JP 2019003648 A JP2019003648 A JP 2019003648A
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- Prior art keywords
- touch sensor
- manufacturing
- flexible display
- adhesive
- base film
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Classifications
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- G—PHYSICS
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
(i)キャリア基板100上に設けられたタッチセンサ200に紫外線反応性粘着剤300を介して基材フィルム400を貼り付ける段階と、
(ii)前記基材フィルム400が貼り付けられたタッチセンサ200からキャリア基板100を分離する段階と、
(iii)前記キャリア基板が分離されたタッチセンサ200に光学フィルム500を貼り付ける段階、及び
(iv)前記紫外線反応性粘着剤300に紫外線を照射して粘着剤を硬化させて基材フィルム400を除去する段階と、を含む。
基材フィルムが貼り付けられたタッチセンサをシート・ツー・シート方式で製造した。このとき、基材フィルムとしてのPETフィルムの厚み、及び基材フィルムの貼り付けのための粘着剤の種類、及び初期剥離力を下記の表1のように異なるものとした。
基材フィルムが貼り付けられたタッチセンサを、比較例1ではロール・ツー・ロール方式、比較例2ではシート・ツー・シート方式で製造した。このとき、基材フィルムとしてのPETフィルムの厚み、及び基材フィルムの貼り付けのための粘着剤の種類、及び初期剥離力を下記の表1のとおりである。
前記実施例及び比較例で製造された基材フィルムが貼り付けられたタッチセンサのセル長辺収縮率及びクラックの発生数を測定し、その結果を下記の表1に表した。
200 タッチセンサ
210 分離層
220 保護層
230 電極パターン層
240 絶縁層
300 紫外線反応性粘着剤
400 基材フィルム
500 光学フィルム
510 偏光板
520 ディスプレイパネル
Claims (14)
- (i)キャリア基板上に設けられたタッチセンサに紫外線反応性粘着剤を介して基材フィルムを貼り付ける段階と、
(ii)前記基材フィルムが貼り付けられたタッチセンサからキャリア基板を分離する段階と、
(iii)前記キャリア基板が分離されたタッチセンサに光学フィルムを貼り付ける段階、及び
(iv)前記紫外線反応性粘着剤に紫外線を照射して粘着剤を硬化させて基材フィルムを除去する段階と、を含むフレキシブル表示装置の製造方法。 - 前記段階(i)〜(iv)は、シート・ツー・シート方式にて行われる、請求項1に記載の製造方法。
- 前記キャリア基板はガラス基板である、請求項1に記載の製造方法。
- 前記紫外線反応性粘着剤は、感圧性粘着剤に光重合性化合物及び光開始剤を追加してなるものである、請求項1に記載の製造方法。
- 前記紫外線反応性粘着剤は、アクリル系共重合体、架橋剤、多官能アクリレート及び光開始剤を含む、請求項1に記載の製造方法。
- 前記基材フィルムの厚みは75〜200μmである、請求項1に記載の製造方法。
- 前記光学フィルムは、偏光板またはディスプレイパネルである、請求項1に記載の製造方法。
- 紫外線反応性粘着剤を介して基材フィルムが貼り付けられた、タッチセンサ。
- 当該タッチセンサは、分離層と、前記分離層上に形成される電極パターン層、及び前記電極パターン層の上部に形成され前記電極パターン層を覆うように形成される絶縁層と、を含み、前記基材フィルムが前記絶縁層上に貼り付けられてなる、 請求項8に記載のタッチセンサ。
- 当該タッチセンサは、前記分離層と前記電極パターン層との間に形成される保護層を更に含む、請求項9に記載のタッチセンサ。
- 請求項1〜7の何れか一項に記載の製造方法によって製造されたフレキシブル表示装置。
- タッチセンサに光学フィルムが貼り付けられたフレキシブル表示装置であって、前記タッチセンサが、分離層と、前記分離層上に形成される電極パターン層、及び前記電極パターン層の上部に形成され前記電極パターン層を覆うように形成される絶縁層と、を含み、前記光学フィルムが前記分離層上に貼り付けられてなる、フレキシブル表示装置。
- 当該タッチセンサは、前記分離層と前記電極パターン層との間に形成される保護層を更に含む、請求項12に記載のフレキシブル表示装置。
- 前記光学フィルムは、偏光板またはディスプレイパネルである、請求項12に記載のフレキシブル表示装置。
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