LTPS TFT-LCD(Low Temperature Poly-Si Thin Film Transistor Liquid Crystal Display) The manufacturing process of LTPS is much complicated than a-Si TFT-LCD because it employs 7 to 9 masks. However, a-Si TFT-LCD only applies 4 to 5 masks. Thus, the cost of research and development for LTPS is relatively higher in comparison with a-Si TFT-LCD. LTPS has higher resolution because the field effect mobility within the semiconductor increases as well as reduces the area of transistor. In short, aperture ratio of LTPS is larger.

The manufacturing process of LTPS TFT is to drive the a-Si film to Poly-Si film layer, grains of crystalline silicon with no amorphous phase, through the process of laser anneal by excimer laser. Other than numbers of masks, this is major difference between LTPS TFT and a-Si TFT-LCD in the manufacturing process. The process of laser anneal is represented as follows:

LTPS SCREEN

16 million colors, vivid color image,great reduction capability,higher brightness and contrast ratio than TFT, outstanding playback feature in LCD screens;
Faster response than ordinary TFT screen,smart to capture every details in the movie and never display any incomplete scene;
Light material, a new generation larger size LTPS can still keep slim;
Even with countless strong points, LTPS extends the playtime and the battery life gradually as its lower power consumtion than TFT.