X-ray flat panel detector
US6849853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/123
Abstract
An X-ray flat panel detector includes an X-ray photosensitive film which generates signal charges upon being exposed to incident X-rays, pixel electrodes which are arrayed in contact with the X-ray photosensitive film, a bias voltage application unit which applies a bias voltage to the X-ray photosensitive film so as to make the pixel electrodes collect holes or electrons, which serve as the signal charges generated by the X-ray photosensitive film and have a higher mobility, capacitors which are arranged in correspondence with the pixel electrodes and store the charges generated by the X-ray photosensitive film, switching thin-film transistors which are arranged in correspondence with the pixel electrodes and read the charges in the capacitors, scanning lines which supply a control signal to OPEN/CLOSE-control the switching thin-film transistors, and signal lines which are connected to the switching thin-film transistors to read the charges when the switching thin-film transistors are opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.