Electronic circuit, electroluminescent display device, electro-optical device, electronic apparatus, method of controlling the current supply to an organic electroluminescent pixel, and method for driving a circuit

An electronic circuit that drives a pixel of an electroluminescent device, the pixel including an electroluminescent element, the circuit comprising:

• a first transistor arranged so as operatively to control a current supplied to the electroluminescent element;
• a capacitor arranged that stores an operating voltage of the first transistor during a programming stage;
• a second transistor arranged in parallel to the transistor that stores the operating voltage to the capacitor;
• a first switching device connected so as operatively to establish a current path through the first transistor and the second transistor during the programming stage;
• and
• a second switching device connected so as to operatively establish a current path through the first transistor and the electroluminescent element during a reproduction stage.

An electronic circuit that drives a pixel of an electroluminescent device, the pixel including an electroluminescent element, the circuit comprising:

• a first transistor connected so as operatively to control a current supplied to the electroluminescent element;
• a capacitor connected that stores an operating voltage of the first transistor during a programming stage;
• a second transistor connected in parallel with the first transistor that stores the operating voltage in the capacitor;
• a first switching device connected so as to establish a current path through the first transistor and the second transistor during the programming stage;
• a second switching device connected so as to establish when operative a current path through the first transistor and the electroluminescent element during a reproduction stage;
• and
• a current sink, the first switching device being arranged such that the current path in the programming stage is connected to the current sink via the first transistor and the second transistor.

An electronic circuit, comprising:

• a current driven element;
• a data line that outputs a current as a data signal;
• a capacitor that stores charge based on current output via the data line;
• a plurality of transistors arranged in parallel to each other as well as having the capacitor being connected to a gate;
• and a driven transistor arranged in series to the current driven element, the electronic circuit supplying current according to a charge stored in the capacitor based on a current amount flowing in a current path including the plurality of transistors in a state where the plurality of transistors are connected to the data line via the driven transistor.

An electronic circuit that drives a pixel of an electroluminescent device, the pixel comprising an electroluminescent element, the circuit comprising:

• a current driven element;
• a data line that outputs a current as a data signal;
• a capacitor that stores charge based on the current output via the data line;
• a plurality of transistors with the capacitor being connected to a gate;
• and
• a driven transistor arranged in series to the current driven element, wherein the electronic circuit supplies a current according to the charge stored in the capacitor based on a current amount flowing in a current path including the plurality of transistors in a state where the plurality of transistors are connected to the data line via the driven transistor to the current driven element;
• including a first switching device that forms a programming path through the plurality of transistors, and a current sink;
• the first switching device being arranged to connect to the current sink via the plurality of transistors in the programming path.

An electronic circuit, comprising:

• a current driven element;
• a data line that outputs a current as a data signal;
• a capacitor that stores charge based on a current output via the data line;
• a plurality of transistors arranged in parallel to each other as well as the capacitor being connected with a gate;
• and
• a driver transistor arranged in series to the current driven element, the electronic circuit supplying current according to the charge stored in the capacitor based on a current amount flowing in a current path including the plurality of transistors in a state where the plurality of transistors are connected to the data line via at least one of the plurality of transistors.

An electronic circuit that drives a pixel of the electroluminescent device, the pixel comprising the electroluminescent element, the circuit comprising:

• a current driven element;
• a data line that outputs a current as a data signal;
• a capacitor that stores charge based on current output via the data line in a programming stage;
• and
• a plurality of transistors with the capacitor being connected to the gate, the electronic circuit supplying current according to the charge stored in the capacitor based on a current amount flowing in a current path including the plurality of transistors in a state where the plurality of transistors are connected to the data line via a driven transistor to the current driven element;
• the circuit further including a first switching device that operatively generates a current path through the plurality of transistors in the programming stage;
• and
• the second switching device that operatively generates a current path through at least one of the plurality of transistors and the electroluminescent element in a reproduction stage.