TFT-LCD glass substrate manufacturing method

Currently in commercial applications, the glass substrate thickness is 0.7 mm and the main 0.6mm, and is about to enter the thinner (eg 0.4 mm) thickness processes. Basically, a TFT-LCD panels need to use the two glass substrates, glass substrates, respectively, and for the bottom for the color filter (COLOR FILT ER) of the base plate used. Ordinary glass substrate manufacturing suppliers and assembly plants for LCD panel color filter processing factory of the glass substrate supply ratio is about 1:1.1 to about 1:1.3.
LCD glass substrates used in alkali glass and none can be divided into two major categories of non-alkali glass; alkali glass include sodium borosilicate glass and neutral glass are two more used in TN and STN Lcd display modules , the main manufacturers of Nippon Sheet Glass ( NHT), Asahi (Asahi) and Central Glass (Central Glass), so as to floating production-oriented legal process; alkali glass places alkali aluminosilicate glass (Alumino Silicate Glass, the main component of SiO2, Al2O3, B2O3 and BaO, etc.) based, an alkali metal content of less than 1% of total, mainly for Character LCD Module, the leader of the United States Corning (Corning) company to overflow process production based fusion method.
Thin glass substrate depends on the characteristics of the glass composition, the glass composition of the glass will affect the thermal expansion, viscosity (strain, annealing, transformation, softening and working point), chemical resistance, optical absorption and penetration in various kind of frequency and temperature, electrical characteristics, product quality and in addition by the material composition effects, also depends on the production process.