Detector pixel, array substrate, apparatus and method for detecting intensity of ray

An array substrate, comprising:

• a plurality of detector pixels;
• wherein at least one of the plurality of detector pixels comprises a substrate, a first transistor, a second transistor, a storage capacitor, a photosensitive element, a first control line, a second control line, a first data line and a second data line;
• wherein the first transistor and the second transistor each are a dual-gate transistor;
• wherein a bottom gate of the first transistor is connected to the first control line, a top gate of the first transistor is connected to the second control line, a first electrode of the first transistor is connected to the storage capacitor, and a second electrode of the first transistor is connected to the first data line;
• wherein a bottom gate of the second transistor is connected to the second control line, a top gate of the second transistor is connected to the first control line, a first electrode of the second transistor is connected to the storage capacitor, and a second electrode of the second transistor is connected to the second data line;
• wherein the storage capacitor is connected to the photosensitive element;
• and
• wherein the plurality of detector pixels are in an array, the first control lines of the detector pixels in a same row are connected to each other, the second control lines of the detector pixels in a same row are connected to each other, the first data lines of the detector pixels in a same column are connected to each other, and the second data lines of the detector pixels in a same column are connected to each other.

An apparatus for detecting an intensity of a ray, comprising:

• a detection chip and an array substrate connected to the detection chip;
• wherein the array substrate is configured to generate excited charges under the excitation of the ray, store the excited charges, and release the excited charges under the control of the detection chip;
• wherein the detection chip is configured to control the array substrate to release the excited charges, detect a channel current generated by releasing the excited charges, and determine the intensity of the ray based on the channel current;
• and
• wherein the array substrate comprises a plurality of detector pixels;
• wherein at least one of the plurality of detector pixels comprises a substrate, a first transistor, a second transistor, a storage capacitor, a photosensitive element, a first control line, a second control line, a first data line and a second data line;
• wherein the first transistor and the second transistor each are a dual-gate transistor;
• wherein a bottom gate of the first transistor is connected to the first control line, a top gate of the first transistor is connected to the second control line, a first electrode of the first transistor is connected to the storage capacitor, and a second electrode of the first transistor is connected to the first data line;
• wherein a bottom gate of the second transistor is connected to the second control line, a top gate of the second transistor is connected to the first control line, a first electrode of the second transistor is connected to the storage capacitor, and a second electrode of the second transistor is connected to the second data line;
• wherein the storage capacitor is connected to the photosensitive element;
• and
• wherein the plurality of detector pixels are in an array, the first control lines of the detector pixels in a same row are connected to each other, the second control lines of the detector pixels in a same row are connected to each other, the first data lines of the detector pixels in a same column are connected to each other, and the second data lines of the detector pixels in a same column are connected to each other.