Direct conversion digital x-ray detector with inherent high voltage protection for static and dynamic imaging
US6353229B1 · kind B1 · utility
19Cited by
7References
25Claims
0Family size
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Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/803
Abstract
A direct conversion digital x-ray detector is provided with inherent high voltage protection for static and dynamic imaging. The detector has an n-channel active matrix TFT array, a coplanar photoconductor structure and a high voltage biasing electrode. In order to achieve high voltage protection, the biasing electrode is set to a negative potential and the TFT “off” gate voltage is set to a predetermined negative value, such that the TFT is essentially non-conductive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.