Samsung Electronics Co Ltd of Korea developed a technology to manufacture LCD panels from inexpensive soda-lime glass, which is used to make regular plate glasses and bottles.
The company exhibited a 19-inch panel based on the technology at FPD International 2007.
"We are ready to mass produce soda-lime glass substrate with the size corresponding to that of the fifth-generation product (1100 × 1250mm)," the company said.
Soda-lime glass is inexpensive and is easily formed. But it cannot be used in the high temperature process employed for the formation of regular LCD panel TFT because it deforms in the process. Therefore, an expensive, special glass substrate with lower impurity level is required to manufacture LCD panels.
In order to use soda-lime glass, Samsung drastically lowered the TFT process temperature. The company, however, did not reveal the details of the process. The exhibited prototype is a 19-inch SXGA (1280 × 1024 resolution) panel. It has a contrast ratio of 1,000:1, a luminance of 300 cd/m2 and a color gamut of 72% of NTSC.