Image display and method for evaluating glass substrate to be used in same
US7545561B2 · kind B2 · utility
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Key dates
| Filing date | Nov 27, 2003 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Oct 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and an evaluating method of the glass substrate. The image display device is formed using the glass substrate where reflectance at wavelength of 220 nm is 5% or lower. In the evaluating method of the glass substrate for the image display device, Sn++ content in the glass substrate is analyzed using reflectance at wavelength of 220 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.