The TFT-LCD industry is classified one of the key industries and fully supported by the Government. TFT-LCD can be applied from technical equipment to home entertainment. This strong market of TFT-LCD is inevitably highly increase of polarize consumption.

By means of using the chemical and optical technology, it makes raw materials of polarizer with unique characteristics that only allows light to penetrate at an assigned direction. At the course of manufacturing, polarizer will be allocated at top and bottom side of liquid crystal module in crosses. The main purpose is to create bright and dark signals to display letters or patterns.

Polarizer is widely used in many areas such as cellular phone, digital camera, PDA, computer, monitor, TV, etc. In addition, polarizer is also fitted to sunglasses, filter lens of photograph equipment, anti-dizzy glasses, light regulator, special glasses for medical treatment, etc.