OPTICAL LAMINATE

To provide an optical laminate where an image display device and a touch sensor are stacked, which prevents noise from the image display device from being conducted to the touch sensor.SOLUTION: An optical laminate 1 has a touch sensor 41, an adhesive layer 21, and an image display device 5 in this...

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Bibliographische Detailangaben
Hauptverfasser:	HORIUCHI YOSHIYUKI, SHIBANO MASAYA, KATAMI FUSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CALCULATING CHEMISTRY COMPUTING COUNTING DYES ELECTRIC DIGITAL DATA PROCESSING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS PHYSICS POLISHES TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	To provide an optical laminate where an image display device and a touch sensor are stacked, which prevents noise from the image display device from being conducted to the touch sensor.SOLUTION: An optical laminate 1 has a touch sensor 41, an adhesive layer 21, and an image display device 5 in this order, wherein the adhesive layer 21 is a polyester-based adhesive layer, and a dielectric constant at a frequency of 100 kHz of the adhesive layer 21 is 4.0 or less. The adhesive layer 21 preferably contains a polyester-based resin containing a constitutional unit derived from a compound which has 20 or more carbon atoms and has two or more functional groups capable of forming an ester bond.SELECTED DRAWING: Figure 1 【課題】画像表示装置およびタッチセンサが積層されており、画像表示装置からのノイズがタッチセンサに伝わりにくい光学積層体を提供する。【解決手段】光学積層体１は、タッチセンサ４１、粘着剤層２１、および画像表示装置５をこの順に備え、粘着剤層２１はポリエステル系粘着剤層であり、粘着剤層２１の周波数１００ｋＨｚでの誘電率は４．０以下である。粘着剤層２１は、炭素数２０以上であり且つエステル結合を形成し得る官能基を２以上有する化合物に由来する構成単位を含むポリエステル系樹脂を含むことが好ましい。【選択図】図１