Electric optical apparatus, driving method thereof and electronic device

摘要

An electric optical apparatus including a display section in which an electric optical material is pinched between a pair of substrates and a plurality of pixels is arranged, wherein the display section is provided with a scanning line, a data line and a power-supply line that are connected to each of the pixels, and each of the pixels is provided with a pixel electrode, a driving transistor that is connected between the pixel electrode and the power-supply line, a capacitance for modulation that is connected between a gate of the driving transistor and the data line, a maintenance capacitance that connects one side electrode to the gate of the driving transistor, and a transistor for correction that is connected to a diode and in which one side terminal thereof is connected to the gate of the driving transistor.

主权项

1. An electric optical apparatus comprising:
a pair of substrates; an electric optical material that is provided in a display section between the pair of substrates; a first pixel and a second pixel that are arranged in the display section, the first pixel includes:
a first scanning line;a data line;a power line;a pixel electrode;a driving transistor that has a gate, a first terminal and a second terminal, the gate of the driving transistor being connected to a first node, the first terminal being connected to the power line, the second terminal being connected to the pixel electrode;a modulation capacitor that has a first electrode and a second electrode, the first electrode being connected to the first node, the second electrode being connected to the data line;a maintenance capacitor that has a third electrode and a fourth electrode, the third electrode being connected to the first node;a correction transistor that has a gate, a third terminal and a fourth terminal, the gate of the correction transistor and the third terminal being connected to the first node;a precharge transistor that has a gate, a fifth terminal and a sixth terminal, the gate of the precharge transistor being connected to the first scanning line, the fifth terminal being connected to the first node; anda potential control line that is connected to the fourth electrode of the maintenance capacitor; and a controller, wherein when an image is displayed on the display section, the controller is adapted to control:
a common power supply circuit that charges the maintenance capacitor in a state in which a reference potential is input to the power line and a first potential that is lower than the reference potential is input to the potential control line;a correction program in the controller that is configured to input an image signal to the modulation capacitor via the data line, draw a part of charges precharged in the maintenance capacitor via the correction transistor so as to set a gate voltage of the driving transistor as a threshold voltage, and input a second potential that is different from the first potential to the potential control line; andthe common power supply circuit that inputs the reference potential to the potential control line, that inputs a third potential that is different from the reference potential to the power line, and that supplies a current to the pixel electrode via the driving transistor.