ADHESIVE LAYER, LAMINATED SHEET, ADHESIVE COMPOSITION, AND OPTICAL SEMICONDUCTOR DEVICE

• Main Authors: NAKANO TAKESHI, ASAI KAZUKO, FUKUTOMI SHUHEI, YAMAMOTO ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ADVERTISING; BASIC ELECTRIC ELEMENTS; BLASTING; CHEMISTRY; CRYPTOGRAPHY; DISPLAY; DISPLAYING; DYES; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; LABELS OR NAME-PLATES; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PAINTS; PHYSICS; POLISHES; SEALS; SEMICONDUCTOR DEVICES; SIGNS; SYSTEMS THEREOF; USE OF MATERIALS AS ADHESIVES; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide an adhesive layer which has excellent anti-reflection properties when bonded to an adherend and is capable of suppressing unevenness in the brightness of transmitted light.SOLUTION: A laminated sheet 1 is provided with at least an adhesive layer 21. The adhesive layer 21 has a haze value of 61% or more and a total light transmittance of 69% or less. The laminated sheet 1 may be provided with a layer 42 having anti-glare and/or anti-reflective properties on one surface. The thickness of the laminated sheet 1 is preferably 500 μm or less.SELECTED DRAWING: Figure 1 【課題】被着体に貼り合わせた際の反射防止性に優れ、透過する光の輝度ムラを抑制することが可能な粘着剤層を提供する。【解決手段】積層シート１は粘着剤層２１を少なくとも備える。粘着剤層２１は、ヘイズ値が６１％以上であり、且つ全光線透過率が６９％以下である。積層シート１は、一方の表面にアンチグレア性および／または反射防止性を有する層４２を備えていてもよい。積層シート１は厚さが５００μｍ以下であることが好ましい。【選択図】図１