© 2005 Tongli Optoelectronic Technology. All Rights Reserved.

Technology Empowerment, Innovation Drive

Research Strength

Adhere to innovation leadership, create a one-stop service platform

Tongli Technology always adheres to innovation leadership and continuously accelerates the pace of transformation and upgrading. Based on the South Korean listed capital platform, the company has pooled top-notch scientific research talents at home and abroad, built an elite independent R&D team, and established R&D centers and joint laboratories in Taiwan, South Korea, and other places.

Market-oriented, the company has occupied the commanding heights of global R&D and overcome technical barrierswith new process design and unique production formulas. At the same time, it actively creates a technology innovation model of the whole value chain, adopts an embedded joint R&D model, and jointly develops customized products with downstream customers to meet their special needs.

After years of development, Tongli Technology has developed into an integrated solution provider with leading advantages in precision coating bonding materials, precision coating protective materials, functional coating materials, and polymer film materials, offering customers with “One-stop” product and technical services.

Innovation Achievements

Tongli Technology attaches great importance to the protection of intellectual property rights. With the R&D and innovation center as the platform, it encouragesinnovation and creation in technicians based on their posts, so that more innovative achievements that fix problems and yield fast resultscan be applied to production and management practices. As of September 2019, the company has been granted more than 100 national patents, including 9 invention patents and 3 software copyrights. At the same time, it also hasmultiple scientific research achievements such as “National Key New Product”, “Science and Technology Achievement” and “Software Copyright”. Many products in functional new materials have been rated as “High-tech Products” in Jiangsu Province and included in the“National Torch Plan”.
  • 100+

    More than 100 patents
  • 9+

    9 invention patents
  • 3+

    3 software copyrights


Lean quality management for excellent quality

Tongli Technology regards quality as the enterprise life, strives for excellent quality with the spirit of craftsmanship, and continuously creates value for customers.
The company has successively passed GB/T 19001-2016/ISO9001:2015, GB/T24001-2016/ISO14001:2015, GB/T45001-2020/ISO45001:2018, GB/T 23001-2007, IATF16949 system certification, GB/T 23331- The 2020/ISO50001:2018 system certification has formed a standardized management model and a strict quality control system. At present, the company has formed R&D, design, manufacturing, and service to implement full life cycle management and control, and then build a quality management model of the entire industry chain, full process and full participation. "Tongli" series of film products have passed SGS testing, and all environmental protection indicators have reached international standards.

Class 1000 dust-free workshop

Tongli Technology introduces state-of-the-art production line equipment from Europe and South Korea, applies the most advanced technology and production process in the world, and specializes in the production of cast optical-grade protective film substrates and optical-grade electrostatic films. It has invested heavily to introduce Japan's clean management system; built a class 1000 dust-free system workshop and class 100 dust-free production line to control indoor temperature and humidity strictly and ensure the optimal production environment.
Sophisticated production equipment, exquisite technological process, rich production experience, and perfect management system are combined to cast high-quality products, laying a foundation for “Tongli” excellent brand.
  • Multi-layer co-extrusion cast film production line

    Specializing in the production of cast optical-grade protective film substrates and optical-grade electrostatic films

  • European three-layer co-extrusion blown film production line

    Mainly producing high-end optical-grade protective film substrates and optical-grade electrostatic films

  • European solvent-free coating production line

    Specializing in the compound processing of environment-friendly flexible packaging materials for food and medicine

  • Korean PP, PE, PET optical film coating production line

    Mainly producing various flat panel displayfunctional film materials

  • Constant temperature and humidity warehouse