Patent ID: 9735194
Date: 2017-08-15
CPC Classifications: G01T,H01L

Claim:
1. An X-ray flat panel detector, comprising: a base substrate; thin film transistors (TFTs), a pixel electrode layer, photodiodes, a transparent electrode layer, and an X-ray conversion layer which are arranged on the base substrate; and an electric field application portion configured to generate an electric field in a direction from the base substrate to the X-ray conversion layer, wherein the photodiodes are arranged in the electric field, and a moving direction of positive charges when visible light rays are converted to electrical signals by the photodiodes is substantially same as a direction of the electric field, wherein the electric field application portion comprises: a positive electrode layer arranged between the base substrate and the photodiodes; and a negative electrode layer arranged between the X-ray conversion layer and the photodiodes, wherein the negative electrode layer is made of a transparent material.