Patent ID: 7479640

Claim:
A resolution-variable X-ray imaging device comprising: a scintillator that receives an X-ray through a subject to emit fluorescence; and an imaging portion comprising: a plurality of pixels aligned at pixel intervals on a light receiving surface of the imaging portion, each of the pixels receiving the fluorescence and converting the fluorescence into an electric signal; a higher-resolution imaging area in which the pixels are aligned at a pixel interval; a lower-resolution imaging area in which the pixels are aligned at a pixel interval longer than the pixel interval of the higher-resolution imaging area; a p-type semiconductor layer formed on a surface of a flexible substrate comprising one of glass and a polymer; a charge storage diode formed on a surface portion of the p-type semiconductor layer; an n + -region constituting a part of a transistor of a signal reading circuit formed on the surface portion of the p-type semiconductor layer; and an insulating layer formed on the surface portion of the p-type semiconductor layer, wherein the areas of the imaging portion are selectable according to a desired image resolution.