SEALANT

• Main Authors: TOMITA YUSUKE, YAMAMOTO YUGO
• Format: Patent
• Language: Chinese; English
• Published: 20.10.2020
• Subjects: ADHESIVES; ADVERTISING; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; DYES; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; SEALS; SEMICONDUCTOR DEVICES; SIGNS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The purpose of the present invention is to provide: a sealant that has a viscosity which is suitable for application in an inkjet method, and a cured product of which has a low dielectric constant; and a method of manufacturing a display device using the sealant. For this purpose, the sealant comprises (A) a cycloaliphatic epoxy compound and (B) an oxetane compound. The sealant has a viscosity measured by an E-type viscometer under the conditions of 25 DEG and 20 rpm of 10 to 30 mPa.s, and a cured product thereof cured under UV-LEDs having a wavelength of 395 nm, at an illuminance of 1000 mW/cm2 and a cumulative amount of light of 1500 mJ/cm2 has a dielectric constant at a frequency of 100 kHz of 3.0 or less. 本发明的目的在于提供一种具有适合于利用喷墨法进行的涂布的粘度、且固化物的介电常数低的密封剂、以及使用其的显示装置的制造方法。出于上述目的，密封剂包含(A)脂环式环氧化合物以及(B)氧杂环丁烷化合物。该密封剂中，利用E型粘度计在25℃、20rpm的条件下测定的粘度为10mPa·s～30mPa·s，且利用波长395nm的UV-LED以照度1000mW/cm2、累积光量1500mJ/cm2进行了固化的固化物在频率100kHz下的介电常数为3.0以下。