ADHESIVE SHEET FOR IMAGE DISPLAY UNIT, MANUFACTURING METHOD OF IMAGE DISPLAY UNIT AND IMAGE DISPLAY UNIT

• Main Authors: MUKAIGAITO KOHEI, MANSEI YOICHIRO, NAKAMURA TOMOYUKI, FURUZONO YOSHITOSHI, HOSHI YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; 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; POLISHES; SEMICONDUCTOR DEVICES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide an adhesive sheet for image display unit having an adhesive layer excellent in padding property into steps formed on an article to be coated even when the steps are high, adhesiveness and reliability, and also excellent in reworkability allowing the adhesive layer to be easily removed from the article to be coated, a manufacturing method of the image display unit and the image display unit.SOLUTION: There is provided an additive sheet for image display unit having at least one adhesive layer containing (A) an acrylic polymer, (B) a crosslinking agent containing a (meth)acryloyl group, (C) a photoinitiator and (D) an ultraviolet absorber with the content of the ultraviolet absorber of 0.05 mass% to 5 mass% inclusive based on a total mass of the adhesive resin composition (adhesive layer).SELECTED DRAWING: Figure 1 【課題】 被着物上に形成される段差が高い場合であっても、段差への埋め込み性、接着性及び信頼性に優れ、また、被着体から粘着層を簡単に除去できるリワーク性に優れる粘着層を備える画像表示装置用粘着シート及びそれを用いた画像表示装置の製造方法、画像表示装置を提供する。【解決手段】 （Ａ）アクリル重合体、（Ｂ）（メタ）アクリロイル基を含む架橋剤、（Ｃ）光開始剤、（Ｄ）紫外線吸収剤を含有する粘着層を少なくとも1層有し、紫外線吸収剤の含有量が、粘着性樹脂組成物（粘着層）の全質量に対して、０．０５質量％以上、５質量％以下である画像表示装置用粘着シート。【選択図】 図１