ADHESIVE SHEET FOR THIN FILM POLARIZING PLATE TYPE DISPLAY, ADHESIVE, LAMINATE, AND DISPLAY

• Main Authors: TANABE SHINGO, MINAKATA KATSUYA, IRIE TAKASHI, FUKUTA KATSUNORI, FURUNO HIROYUKI, ISHI TOMOFUMI, SHIBATA HIROSHI, HAYASAKA TSUTOMU
• Format: Patent
• Language: English; Japanese
• Published: 17.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ADVERTISING; CHEMISTRY; CRYPTOGRAPHY; DISPLAY; DISPLAYING; DYES; EDUCATION; LABELS OR NAME-PLATES; 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; SEALS; SIGNS; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

To provide an adhesive sheet that can achieve better light resistance and strain adequacy than before and adhesive strength after aging, an adhesive and a laminate, and further a display.SOLUTION: The problem is solved by an adhesive sheet for a thin film polarizing plate type display that includes an adhesive layer (X) containing an acrylic copolymer (A), a curing agent (B) and an ultraviolet absorber (C), wherein when a film thickness of the adhesive layer (X) is 50 μm, light transmittance at a wavelength of 405 nm is 40% or less.SELECTED DRAWING: Figure 1 【課題】従来よりも耐光性、ひずみ適性に優れ、さらに経時後粘着力の両立を達成可能な粘着シート、粘着剤および該積層体、さらにはディスプレイの提供。【解決手段】アクリル系共重合体（Ａ）、硬化剤（Ｂ）および紫外線吸収剤（Ｃ）を含む粘着剤層（Ｘ）を有する薄膜偏光板型ディスプレイ用粘着シートであって、前記粘着剤層（Ｘ）の膜厚が５０μｍのときの波長４０５ｎｍの光透過率が４０％以下である、薄膜偏光板型ディスプレイ用粘着シートにより解決される。【選択図】図１