Polyester film has a wide range of application fields, including LCD display, medical and health care, packaging materials, electronic appliances, new energy and other industries. It can be used in fields such as magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, optical grade mirror surface protection, etc. In addition, polyester film is also suitable for high-end labels, tobacco and alcohol printing and packaging, book laminating, solar energy, consumer electronics, automobiles, construction and other industrial fields. In summary, polyester film has a wide range of applications in packaging, electronics, construction, printing, solar energy, and medical fields