Sichuan Longhua Optoelectronic Film Co., Ltd. was established in 2004. It is a high-tech enterprise focusing on the research, development, production and sales of polymer functional film materials such as PC materials, PMMA materials and composite materials. It is committed to "import substitution and filling the domestic gap" and has developed into a domestic technologically leading manufacturer of polymer functional film materials.

The company has 7 advanced polymer functional film extrusion production lines, 1 optical phase difference film production line, and 2 functional precision coating production lines. In addition, the company is building the world's first 2,500mm ultra-large wide-format PMMA polarizer base film production line. After reaching production, it will break the monopoly of foreign manufacturers on PVA protective film and realize import substitution.

The company's main product series includes cover materials, optical structural materials, printing and flame retardant materials, etc. It is an important base material for the manufacturing of consumer electronic products back panels, touch display front covers, backlight modules, polarizers and road traffic signs. The products are widely used in consumer electronic fields such as mobile phones, tablets, laptops, as well as in the fields of home appliances, automobiles and traffic safety. After years of development, the company has accumulated terminal customers such as Huawei, OPPO, Samsung, and Xiaomi in the mobile phone field; has accumulated terminal customers such as Apple, Lenovo, and HP in the tablet and laptop fields; and has accumulated terminal customers such as Volkswagen, Buick, and Nissan in the automotive electronics field.

The company has always attached great importance to R&D and innovation. It has the Mianyang Headquarters R&D Center and the Mianyang Academician (Expert) workstation. Its professional fields involve film manufacturing, polymer materials, and optical film design and development. The center is equipped with a R&D team with rich production practice experience and rich product R&D and product operation experience. At present, the company has obtained a total of 31 patents, authorized 10 invention patents in China, 19 utility model patents, and 2 US invention patents, and participated in the formulation of the national standard "Polycarbonate Films and Sheets" (GB/T 35450-2017).

The company's product "Longhua Brand Polycarbonate Film" was awarded the "Sichuan Famous Brand Product Title" by the Sichuan Provincial Government in 2017. The company is a Sichuan Province technological innovation demonstration enterprise and the first foreign-invested R&D institution in Sichuan Province. It has been recognized as the Sichuan Province Enterprise Technology Center; the company's optical polarized film material engineering technology research center has been recognized as a provincial engineering technology research center; the Sichuan Provincial Development and Reform Commission approved the company to build the "Sichuan Province Optical Polarized Film Material Engineering Laboratory" in 2020. The company's "Development of New Light Touch Screen Optical Material Manufacturing Technology Based on Polymethyl Methacrylate/Polycarbonate" project won the 2019 Private Enterprise Project Science and Technology Achievements Achievements Award.