ADHESIVE SHEET FOR IMAGE DISPLAY DEVICE, ADHESIVE LAMINATE FOR IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY DEVICE

• Main Authors: MUKAIGAITO KOHEI, TAKAHASHI HIROAKI, ISHIKAWA EISAKU, FURUZONO YOSHITOSHI, IMAIZUMI JUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 31.05.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ADVERTISING; CALCULATING; CHEMISTRY; COMPUTING; COUNTING; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; DYES; EDUCATION; ELECTRIC DIGITAL DATA PROCESSING; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide an adhesive sheet for image display devices that can be embedded well in a step formed on an adherend, and has excellent workability in the process of working it into a shape suitable for an image display device and sticking it.SOLUTION: An adhesive sheet for image display devices has a tanδ at 40-70°C of 0.35 or more, a tensile secant elastic modulus in a tensile stress-strain curve of 0.6-1.4 MPa, and a tensile fracture elongation of 150 mm or less.SELECTED DRAWING: Figure 1 【課題】被着物上に形成される段差への埋め込み性に優れ、また、画像表示装置に適した形状に加工し、貼り合わせる過程において加工性に優れる画像表示装置用粘着シートを提供すること。【解決手段】４０〜７０℃におけるｔａｎδが０．３５以上であり、引張応力−ひずみ曲線における引張割線弾性率が０．６〜１．４ＭＰａであり、かつ引張破壊伸びが１５０ｍｍ以下である、画像表示装置用粘着シート。【選択図】図１