ESD protection system and X-ray flat panel detector
US9142954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Apr 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/931
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An ESD protection system includes an ESD leakage bus and an ESD protection circuit having one of its terminals connected to the ESD leakage bus. The ESD protection circuit includes at least a pair of amorphous silicon thin film transistors which are connected in a back-to-back manner, and a first shading layer is provided over the channels of the pair of amorphous silicon thin film transistors. When the ESD protection system is applied to an X-ray flat panel detector, no photocurrent will occur during the use of the X-ray flat panel detector, the effect of the photocurrent on the voltage of the scan line is reduced. Further, when the first shading layer is connected to a negative fixed potential, it can be ensured that the ESD protection circuit has small threshold voltage while the leakage current in the ESD protection circuit is reduced, and power consumption is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.