An image sensor array includes image sensors having photo TFTs to generate
photocurrent in response to received images. The photo TFTs each have
their respective gate electrodes shorted to source electrodes to increase
generated photocurrent. Each photo TFT is coupled to a reference TFT to
compensate for dark current in a corresponding photo TFT. Storage
capacitors are coupled to each photo TFT and discharged upon generation of
a photocurrent. Each storage capacitor is coupled to a readout TFT that
passes a current from the storage capacitor to a data line. Data lines
indicate location of the received image on the image sensor array.
