The optical-grade precision coating line project is a high-clean, high-precision, intelligent roll-to-roll coating mass production infrastructure + equipment planned and constructed for high-end fields such as display optical films, semiconductor optical materials, flexible electronics, and new energy optical functional materials.+ Supporting overall engineering projects. The project covers the entire process of factory clean workshop planning, public works supporting, process equipment installation, heating and ventilation purification, electrical automatic control, pure water waste gas and wastewater treatment, fire protection and security, commissioning and production. The core is used for mass production of HC hardening films, AG anti-glare films, AF anti-fingerprint films, release films, OCA optical adhesives, polarizer functional layers, quantum dot films, lithography base films and other optical grade thin film products, belonging to high-end new materials and core supporting infrastructure projects for optoelectronic displays.