Patent ID: 8212904

Claim:
A solid-state imaging device, comprising: a plurality of pixel cells, arranged in a matrix, each of which includes a photodiode that photoelectrically converts incident light, a transferring transistor that transfers a charge generated by said photodiode, a floating diffusion that accumulates the transferred charge, a reset transistor that resets a potential of said floating diffusion, and an amplifying transistor that converts the charge accumulated in said floating diffusion into a voltage; column signal lines, each connected to associated ones of plurality of amplifying transistors, including said amplifying transistor corresponding to a corresponding one of columns having said associated plurality of pixel cells; and a voltage control circuit, including a voltage control transistor that corresponds to an associated one of said column signal lines, has a source connected to a bias line having a voltage as high as a voltage of a power supply voltage or more, and has a drain connected to said column signal line; and a load transistor that corresponds to the associated one of said column signal lines, wherein said column signal line is connected to a drain of said load transistor arranged on a column basis, and said load transistor has a grounded source, and wherein said voltage control transistor turns on after said load transistor is electrically disconnected from said column signal line and before said transferring transistor turns on, and said voltage control transistor turns off after said transferring transistor turns off so that said load transistor is electrically connected to said column signal line.