RADIATION IMAGING ELEMENT
First Claim
1. A radiation imaging element that receives radiation transmitted through a subject and outputs an image signal corresponding to an amount of the radiation, wherein the radiation imaging element comprises a plurality of pixel portions each comprising:
- a photoelectric conversion portion having a lower electrode formed on a substrate, a photoelectric conversion layer formed on the lower electrode, and an upper electrode formed on the photoelectric conversion layer;
a phosphor layer formed on the upper electrode; and
a field-effect transistor provided at the substrate so as to correspond to the photoelectric conversion portion, for outputting the image signal corresponding to an electric charge generated in the photoelectric conversion layer,wherein the field-effect transistor includes at least a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode, and an electric resistance layer is provided so as to be electrically connected between the active layer and at least one of the source electrode or the drain electrode.
1 Assignment
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Accused Products
Abstract
A radiation imaging element that includes a plurality of pixel portions each having a phosphor layer that absorbs radiation transmitted through a subject to emit light, a photoelectric conversion portion that includes an upper electrode, a lower electrode, and a photoelectric conversion layer disposed between the upper electrode and the lower electrode, and a TFT which outputs a signal corresponding to an electric charge generated in the photoelectric conversion layer, wherein the TFT includes at least a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode, and an electric insulating layer is further provided so as to be electrically connected between the active layer and at least one of the source electrode or the drain electrode.
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Citations
14 Claims
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1. A radiation imaging element that receives radiation transmitted through a subject and outputs an image signal corresponding to an amount of the radiation, wherein the radiation imaging element comprises a plurality of pixel portions each comprising:
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a photoelectric conversion portion having a lower electrode formed on a substrate, a photoelectric conversion layer formed on the lower electrode, and an upper electrode formed on the photoelectric conversion layer; a phosphor layer formed on the upper electrode; and a field-effect transistor provided at the substrate so as to correspond to the photoelectric conversion portion, for outputting the image signal corresponding to an electric charge generated in the photoelectric conversion layer, wherein the field-effect transistor includes at least a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode, and an electric resistance layer is provided so as to be electrically connected between the active layer and at least one of the source electrode or the drain electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification