| 摘要 |
The invention relates to the field of displays. One subject of the invention is a glass composition intended for the production of a substrate for a field-emission display, which has an overall light transmission factor under illuminant D<SUB>65 </SUB>(TL<SUB>D65</SUB>) that varies from 45 to 80% and is preferably equal to 72% or less, measured for a glass thickness of 2.8 mm, and a blue-gray coloration defined by the following chromatic coordinates: <?in-line-formulae description="In-line Formulae" end="lead"?>a*=-4 to +1, preferably -2 to 0; and<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>b*=-6 to +3, preferably -2 to 0.<?in-line-formulae description="In-line Formulae" end="tail"?> The substrates obtained advantageously have a reflection brightness (R) of less than 10 Cd/m<SUP>2</SUP>.
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