Flat panel detector for radiation imaging and pixel for use...

H - Electricity – 01 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01L 27/146 (2006.01) G01T 1/24 (2006.01) G01T 1/29 (2006.01) H04N 5/32 (2006.01)

Patent

CA 2228117

A flat panel detector (20) for radiation imaging includes an array of pixels (22) arranged in rows and columns. Gate lines (24) interconnect the pixels of each row while source lines (26) interconnect the pixels of each column. A radiation transducer (CSE) is disposed over the array. Each pixel includes a TFT switch (38) having its gate electrode connected to a gate line (24) and its source electrode (42) connected to another gate line. The drain electrode (40) of TFT switch (38) constitutes the pixel electrode of pixel (22). The drain electrode and a bottom electrode (52) connected to source line (26) constitute a storage capacitor (CST). When TFT switch is biased and the drain electrode is charged, the drain electrode discharges through TFT switch on to the source terminal and to the gate line. This results in a release of the charge held by the bottom electrode which is sensed by a charge amplifier connected to the source line.

Détecteur à panneau plat (20) pour radiographie, comprenant un ensemble de pixels (22) disposés en rangées et en colonnes. Des lignes de grille (24) interconnectent les pixels de chaque rangée tandis que des lignes de source (26) interconnectent les pixels de chaque colonne. Un transducteur de rayonnement (C¿SE?) est placé sur l'ensemble. Chaque pixel comprend un commutateur à transistor en couches minces (TFT) (38) dont l'électrode de grille est reliée à une ligne de grille (24) et dont l'électrode de source (42) est reliée à une autre ligne de grille. L'électrode drain (40) du commutateur TFT (38) constitue l'électrode de pixel (22). L'électrode drain et l'électrode de fond (52) reliée à la ligne de source (26) constituent un condensateur de stockage (C¿ST?). Lorsque le commutateur TFT est polarisé et que l'électrode drain est chargée, l'électrode drain se décharge à travers le commutateur TFT sur le terminal source et la ligne de grille. Il en résulte une libération de la charge détenue par l'électrode de fond, qui est captée par un amplificateur de charge relié à la ligne de source.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Flat panel detector for radiation imaging and pixel for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flat panel detector for radiation imaging and pixel for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat panel detector for radiation imaging and pixel for use... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1451282

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.