What HTPS?

HTPS High Temperature Poly-Silicon is an abbreviation, translated into Chinese as "high-temperature polysilicon" means, generally known as high-temperature glass. It is a family of LCD display, are active dot matrix LCD (Active Matrix LCD), therefore, HTPS is TFT (Thin Film Transistor; thin film transistor) a.

HTPS LCD polysilicon TFT lcd module manufacturing process technologies. Is known as high temperature glass, because of the manufacturing process of the panel, there is a Laser Anneal (laser annealing) process, its temperature exceeds 1000 degrees Celsius. In the early development of the polysilicon manufacturing process, as to the amorphous structure of the glass substrate into a polysilicon structure must be above 1000 degrees Celsius temperature oxidation technology to the structural properties of amorphous silicon into polycrystalline structure. Since ordinary glass can not handle such a high temperature, only quartz glass can be so treated, and its price is more expensive and sizes are smaller, so the early stages of development in the polysilicon manufacturing process, manufacturers based on cost considerations, going more amorphous route.

In addition, there is the same part of TFT LCD LTPS LCD (Low Temperature Poly-Silicon; low-temperature polysilicon). LTPS LCD is called hypothermia, due to its processing temperature is not so high, only about 500 to 600 degrees Celsius of the spectrum, and in accordance with the manufacturer's processes each slightly different. The use of low-temperature polysilicon process excimer laser as the heat source, the laser light through the projection system, it will produce a uniform distribution of energy of the laser beam projected onto the glass substrate of amorphous silicon structure, when the amorphous structure of the glass substrate, an excimer Ray Absorption energy emitted after a polysilicon structure will change, because the entire process is completed at a temperature below 600 degrees, it is generally a glass substrate can be applied. Low-temperature polysilicon LCD technology is mainly characterized by structural changes to improve the performance of conventional amorphous silicon OLED Moduletechnology and lower manufacturing costs. As LTPS technology can enhance the electron mobility rate 200 (cm2/V-sec), is conducive TFT component miniaturization, and improved aperture ratio of the panel so that the display brightness increases and lower power consumption. In addition, low-temperature Cheng Youli in a glass substrate, which can significantly reduce production costs. HTPS with LTPS its main purpose is not the same.