Company profile

GemTech Optoelectronics Corp. is one of the many high technology businesses Cheng Loong Group invested in. ITO conductive glasses are the main products of GemTech. Over the years, we have received high recognition from major Japanese, Korean, European, American, Taiwanese, and Chinese companies in the industry for our highly professional sputtering technologies and excellent products.

GemTech is also one of the few manufacturers all over the globe that can do large-size coating. Currently, we have built up cooperation and formed strategic alliances with well-known companies both at home and abroad.

  1. Three Cluster Type In-Line Sputter machines (Max.2.1x3.6M,Min.300x350mm)
  2. Two Surface Grinding machines
  3. High-precision testing equipment
  4. Automatic production line
  5. R&D equipment

Main product
  1. ITO coating for flat panel display (FPD - TN/STN/OLED)
  2. ITO and Metal coating, including DITO、SITO、IMITO etc., for touch panels
  3. EMI shielding coating for plasma display panels (PDP) and TFT-LCD
  4. Anti-Reflection or Anti-infrared ITO coating for display product and automotive product
  5. Coating for green building materials such as Switchable Smart Glass Window
  6. Coating for high-tech building materials such as Switchable Privacy Window
  7. Surface grinding and re-grinding service