X-ray detector and method for shooting images by using X-ray detector
A light detector and imaging technology, applied in the field of X-ray detectors, can solve problems such as limited correction effect and affect image quality, and achieve the effect of reducing local differences and improving image quality.
Active Publication Date: 2020-05-05
HANNSTOUCH SOLUTION
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[0003] During the working process of the X-ray detector, the charge may remain in the photodiode, and the collected image will be affected by the residual image. For example, the current collected image is superimposed with the information of the previous image residual, which affects the image quality.
Digital image processing can moderately correct this image, but its correction effect is limited
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[0035] A number of embodiments of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some known and commonly used structures and elements will be shown in a simple schematic way in the drawings.
[0036] Figure 1A It is a schematic diagram of an X-ray detector 100 according to some embodiments of the present invention. Figure 1B It is a schematic diagram of the operation of the X-ray detector 100 according to some embodiments of the present invention. Also refer to Figure 1A and Figure 1B , the X-ray detector 100 includes an active device array substrate 110 and an X-ray conversion layer ...
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The invention discloses an X-ray detector and a method for shooting images by using the X-ray detector. The X-ray detector comprises a substrate, a plurality of signal lines, a plurality of scanning lines, a plurality of sensing units and a first active element. The signal lines are arranged on the substrate. The scanning lines are arranged on the substrate and staggered with the signal lines. Each sensing unit is electrically connected with the signal line and the scanning line. The first active element is provided with a first end, a second end and a control end, the control end is used forconducting the first end and the second end, the first end of the first active element is connected with the first signal line, and the second end of the first active element is connected with the second signal line. Therefore, by controlling the first active element to be turned on, the charges of the first signal line and the second signal line can be homogenized, so that the local difference ofresidual charges is reduced, and the image quality is further improved.
Description
technical field [0001] The invention relates to an X-ray detector and a method for shooting images by using the X-ray detector. Background technique [0002] X-ray digital photography technology has been widely used in the field of medical imaging diagnosis today. In various X-ray digital photography equipment, X-ray detectors play an indispensable key role in the entire image acquisition process. The imaging process of the X-ray detector needs to go through the transformation process from "X-ray" to "visible light" to "electron". During the imaging process, X-rays will first be incident on the scintillator layer on the upper surface of the X-ray sensor, which converts the incident X-rays into visible light. Visible light excites the photodiodes on the X-ray sensor to generate electrons, which are then collected and converted into appropriate signals to read out digital images. Digital images can be easily processed in various digital images. [0003] During the working p...
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Login to View More IPC IPC(8): H04N5/32
CPCH04N5/32
Inventor 庄哲渝
Owner HANNSTOUCH SOLUTION