Circuits and methods for reducing illumination unevenness and improving aperture ratios in display devices

A pixel circuit, including:

• a light emitting device;
• a driving circuit, electrically connected to the light emitting device, and configured to drive the light emitting device to emit light;
• a data writing circuit, electrically connected to a first scan signal input terminal, a data signal input terminal and a control terminal of the driving circuit respectively, and configured to, according to a first scan signal inputted from the first scan signal input terminal, control the data signal input terminal to input a data voltage to the control terminal of the driving circuit;
• a light emitting control circuit, electrically connected to a light emitting signal input terminal, a first voltage input terminal and a first terminal of the driving circuit respectively, and configured to, according to a light emitting signal inputted from the light emitting signal input terminal, control the first voltage input terminal to input a first voltage to the first terminal of the driving circuit;
• a threshold compensation circuit, electrically connected to a second scan signal input terminal, the control terminal of the driving circuit and a second terminal of the driving circuit, and configured to, according to a second scan signal inputted from the second scan signal input terminal, control a conduction or disconnection between the control terminal of the driving circuit and the second terminal of the driving circuit, wherein the second terminal of the driving circuit is directly connected to an anode of the light emitting device;
• a first storage circuit, electrically connected to a second voltage input terminal and the first terminal of the driving circuit respectively, and configured to store a voltage difference between a second voltage of the second voltage input terminal and the first terminal of the driving circuit;
• and
• a second storage circuit, electrically connected to the first terminal of the driving circuit and the control terminal of the driving circuit respectively, and configured to store a voltage difference between the first terminal of the driving circuit and the control terminal of the driving circuit,
• wherein in an initialization stage, the data voltage is provided through the data writing circuit and the threshold compensation circuit to the anode of the light emitting device and is less than a cathode voltage of the light emitting device.