FLEXIBLE DISPLAY LAMINATE AND FLEXIBLE DISPLAY

• Main Authors: TANABE SHINGO, FUKUTA KATSUNORI, FURUNO HIROYUKI, ISHI TOMOFUMI, HAYASAKA TSUTOMU
• Format: Patent
• Language: English; Japanese
• Published: 13.06.2023
• 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 a flexible display adhesive sheet, a flexible display laminate and a flexible display in which a bent part is not whitened even when repeatedly bent, no deviation of an adhesive agent layer occurs, and peeling strength of the adhesive agent layer is excellent.SOLUTION: There is provided a laminate forming a flexible display, the laminate includes at least a transparent substrate and an adhesive agent layer, the adhesive agent layer exhibits a sea island structure which has a domain (D) and a matrix (M), and an area ratio D:M of the domain (D) and the matrix (M) identified by an elastic modulus in a cross section is 0.5:99.5-20:80.SELECTED DRAWING: Figure 2 【課題】繰り返し屈曲しても屈曲部が白化せず、粘着剤層のズレが生じず且つその剥離強度に優れたフレキシブルディスプレイ用粘着シート、フレキシブルディスプレイ用積層体及びフレキシブルディスプレイの提供する。【解決手段】フレキシブルディスプレイを構成する積層体であって、前記積層体は少なくとも透明基材及び粘着剤層を含み、前記粘着剤層はドメイン（Ｄ）とマトリックス（Ｍ）を有する海島構造を呈し、断面における弾性率で特定されるドメイン（Ｄ）とマトリックス（Ｍ）との面積比率Ｄ：Ｍが０．５：９９．５～２０：８０であることを特徴とする。【選択図】図２