Method for manufacturing glass substrate for image display
US7487649B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Nov 27, 2003 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | May 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2217/49264
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a manufacturing method of a glass substrate for an image display device having high picture quality. The reducing force in a float furnace is controlled to be decreased so that Sn++ content on a surface of the glass substrate forming an Ag electrode is a predetermined value or less. When the resultant Sn++ content on the surface of the glass substrate forming the Ag electrode exceeds the predetermined value, the surface is partially removed to decrease the Sn++ content to the predetermined value or less to suppress the occurrence of yellowing of the glass substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.