Patent ID: 8179469
Filing Date: 2012-05-15
Classification: H01L,H04N

Abstract:
1. A photoelectric conversion apparatus comprising: a photoelectric conversion circuit section wherein a plurality of pixels are arranged in a two dimensional matrix, each of said pixels including a photoelectric conversion element for converting light into an electric charge and a switching element for outputting an electric signal based on the electric charge, and wherein the photoelectric conversion circuit section outputs, for forming an image of one frame, the electric signals from the plurality of pixels one row by one row through a plurality of signal wires each corresponding to each of columns of the two dimensional matrix, as parallel signals, and the switching element is a thin film transistor having an amorphous silicon semiconductor layer; a reading circuit section for amplifying the parallel signals and reading out a serial signal converted from the parallel signals, wherein the reading circuit section is an integrated circuit formed from a single crystalline silicon as a substrate material, and the reading circuit section includes, one signal wire by one signal wire, an analog operational amplifier for amplifying the electric signal, a transfer switch and a capacitor for sampling and holding the electric signal amplified by the analog operational amplifier, and a reading switch for reading out the electric signal from the capacitor; and a driving circuit section for controlling a turning on of the switching elements one row by one row, wherein during a time period when the reading circuit section performs the reading out of a serial signal for a predetermined row of pixels based on the electric signal from the capacitor, the driving circuit section performs the turning on of the switching elements of a second row different from the predetermined row of pixels to amplify parallel signals from the second row by the plurality of analog operational amplifiers.