ADHESIVE LAYER, OPTICAL FILM AND IMAGE DISPLAY DEVICE

• Main Authors: SUGINO SHOKO, MOTOMURA HIRONORI, CHIBA TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 04.10.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ADVERTISING; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; 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 ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To suppress air bubbles and/or peeling from occurring near a protruding portion of a front transparent plate in the case of sticking together the front transparent plate and an image display panel through an adhesive layer.SOLUTION: The invention relates to an adhesive layer used for sticking together an image display panel and a front transparent plate having a protruding portion on the image display panel side thereof. The adhesive layer of the invention has a storage modulus at 23°C of 0.12 MPa to 1 MPa. The thickness of the adhesive layer is preferably 30 μm to 300 μm.SELECTED DRAWING: Figure 1 【課題】隆起部を有する前面透明板と画像表示パネルとを粘着剤層を介して貼り合わせた場合における、隆起部付近での気泡や剥離の発生を抑制する。【解決手段】本発明は、画像表示パネルと、画像表示パネル側の面に隆起部を有する前面透明板とを貼り合わせるために用いられる粘着剤層に関する。本発明の粘着剤層は、２３℃における貯蔵弾性率が、０．１２ＭＰａ〜１ＭＰａである。また、前記粘着剤層の厚みは、３０μｍ〜３００μｍであることが好ましい。【選択図】図１