Patent ID: 7968482
Filing Date: 2011-06-28
Classification: C03B,C03C,C09K,Y02P,Y10T

Abstract:
1. A glass substrate, which has a substrate size of 1,100 mm×1,250 mm or more, a transmittance at a wavelength of 550 nm and at a route length of 50 mm of 85% or more, a difference between the transmittance at a wavelength of 550 nm and at a route length of 50 mm and a transmittance at a wavelength of 650 nm and at a route length of 50 mm of 3% or less, and an average surface roughness Ra of a substrate end surface of 1 μm or less, and wherein the glass substrate comprises 0.0001 to 0.002 mass % of Cr