Solid-state imaging device comprising a holding circuit and driving method thereof

摘要

A plurality of pixel circuits arranged in rows and columns, and each of which outputs an electric signal according to an amount of received light; a first column signal line provided for each of the columns, and for sequentially transferring the electric signals from said pixel circuits in a corresponding column; and a holding circuit provided for each of the pixel circuits in each column, and which holds the electric signal transferred through the column signal line in the corresponding column are provided. A holding circuit includes a first capacitor which holds a first electric signal of the corresponding pixel circuit in a reset state; and a second capacitor which holds a second electric signal after the corresponding pixel circuit receives light. A difference circuit calculates a difference between two electric signals held by the first capacitor and the second capacitor in a same holding circuit.

主权项

1. A solid-state imaging device comprising:
a plurality of pixel circuits which are arranged in rows and columns, and each of which outputs an electric signal according to an amount of received light; a column signal line, provided for each of the columns, for sequentially transferring electric signals from pixel circuits in a corresponding column; at least three holding circuits which are connected to the column signal line in the corresponding column, and respectively hold the electric signal transferred from a corresponding pixel circuit of the plurality of pixel circuits in the corresponding column through the column signal line; and a vertical scanning circuit which generates a plurality of driving signals, each of the plurality of driving signals being supplied to pixel circuits in a corresponding row and having a corresponding valid period, wherein: the plurality of driving signals includes a first driving signal having a first valid period and a second driving signal having a second valid period, the first driving signal drives pixel circuits in a first row and the second driving signal drives pixel circuits in a second row, and the second valid period starts within the first valid period.