ADHESIVE COMPOSITION LAYER AND LAMINATED STRUCTURE FOR FLEXIBLE DEVICE

• Main Authors: QI SHENGGUANG, SU XIAOFEI, ZHENG CHAO, WANG JIASHENG, QIAO LIGEN, TANG FANGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2023
• 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

The invention relates to the technical field of flexible display devices, in particular to an adhesive composition layer and a laminated structure for a flexible device. The adhesive composition layer for the flexible device is mainly obtained by polymerizing a monomer and an initiator; the monomers comprise monomers of which the refractive index nD20 is 1.420 to 1.455; under the stress relaxation conditions that the temperature is 60 DEG C and the shear deformation quantity is 500%, A is defined to be equal to logG (10s)-logG (100s), and B is defined to be equal to logG (100s)-logG (1000s); the adhesive composition layer satisfies the condition that the non-dimensional ratio B/A ranges from 0.5 to 1.3. The bonding composition layer has the advantages of high dissipation, high resilience, high bonding strength and the like on mechanical stress, can maintain good structural stability under high-temperature and large-scale shear deformation, and is not easy to generate bending marks after the bending state is r