Patent ID: 8654291

Claim:
A pixel circuit comprising: a display element part including a unit display element; an internal node composing a part of the display element part, for holding a pixel data voltage applied to the display element part; a first switch circuit for transferring the pixel data voltage supplied from a data signal line to the internal node through at least a predetermined switch element; a second switch circuit for transferring a voltage supplied from the data signal line to the internal node without passing through the predetermined switch element; and a control circuit for holding a predetermined voltage depending on the pixel data voltage held by the internal node at one end of a first capacitive element, and controlling ON/OFF of the second switch circuit, wherein the second switch circuit is a series circuit comprising a first transistor element having a first terminal, a second terminal, and a control terminal for controlling connection between the first and second terminals, and a diode element, the control circuit is a series circuit comprising a second transistor element having a first terminal, a second terminal, and a control terminal for controlling connection between the first and second terminals, and the first capacitive element, one end of each of the first and second switch circuits is connected to the data signal line, the other end of each of the first and second switch circuits, and the first terminal of the second transistor element are connected to the internal node, the diode element has a rectifying function from the data signal line to the internal node, the control terminal of the first transistor element, the second terminal of the second transistor element, and one end of the first capacitive element are connected to each other to form an output node of the control circuit, the control terminal of the second transistor element is connected to a first control line, and the other end of the first capacitive element is connected to a second control line.