Low expansion glass filler, method for producing the same, and glass frit containing the same

摘要

A low expansion glass filler which minimizes reflection of laser light during hermetic sealing, a method of manufacturing the same and a glass frit including the same. The low expansion glass filler includes SiO2, Al2O3, B2O3 and CaCO3, the transmittance of the low expansion glass filler being 80% or greater at a wavelength ranging from 630 to 920 nm.