MSM X-ray detector and electronic device

A detector and X-ray technology, applied in the display field, can solve the problem of high detector noise, etc.

Inactive Publication Date: 2019-03-01
BOE TECH GRP CO LTD
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[0003] The invention provides an MSM type X-ray detector and electronic equipm...

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  • MSM X-ray detector and electronic device
  • MSM X-ray detector and electronic device
  • MSM X-ray detector and electronic device

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[0024] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0025] At present, the MSM (Metal-Semiconductor-Metal) type X-ray detector includes a pixel switching tube TFT, but its leakage current is relatively large, which makes the noise on the data line connected to the drain relatively large, resulting in low detection efficiency. Low. figure 1 It is a structural schematic diagram of an MSM type X-ray detector in the related art, see figure 1 , a pi...

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Abstract

The present invention relates to an MSM (Metal-Semiconductor-Metal) X-ray detector and an electronic device. The MSM X-ray detector comprises a plurality of pixel units, each pixel unit comprises onesecond layer including source and drain patterns and a third layer including one second common electrode pattern; coupling capacitances between the second common electrode patterns and the source anddrain patterns are smaller than or equal to a set threshold value to reduce the thermal noise of each pixel unit in the MSM X-ray detector. The coupling capacitances between the second common electrode patterns and the source and drain patterns are regulated to allow the coupling capacitances to be smaller than or equal to the set threshold value so as to reduce the thermal noise on a connection data line where the drain is located. Besides, the voltage of the power source connected with first common electrodes and/or the second common electrodes is regulated to a negative voltage to reduce the leakage current of the coupling capacitors related to the first common electrodes or the second common electrodes and reduce the noise generated by the pixel switch tube TFT so as to facilitate improvement of the detection efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an MSM type X-ray detector and electronic equipment. Background technique [0002] At present, the MSM (Metal-Semiconductor-Metal) type X-ray detector includes a pixel switching tube TFT, but its leakage current is relatively large, which makes the noise on the data line connected to the drain relatively large, resulting in low detection efficiency. Low. Contents of the invention [0003] The invention provides an MSM type X-ray detector and electronic equipment to solve the problem of relatively large noise in the detector in the related art. [0004] According to a first aspect of an embodiment of the present invention, there is provided an MSM-type X-ray detector, which includes a plurality of pixel units, each pixel unit includes a second layer including a source-drain pattern and a second common electrode pattern arranged in sequence. the third layer of [0005] The co...

Claims

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Application Information

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IPC IPC(8): G01T1/24H01L27/146
CPCH01L27/14612H01L27/14658G01T1/24G01T1/20185H01L27/14663H01L27/14636G01T1/247
Inventor 刘晓惠
Owner BOE TECH GRP CO LTD
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