Pixel compensation circuit, method for driving the same, display panel, and display device

A pixel compensation circuit, comprising:

• an initialization sub-circuit, a data writing sub-circuit, a storage sub-circuit, a compensation sub-circuit, a driving sub-circuit, a light-emission control sub-circuit, and a light-emitting element, wherein:
• the initialization sub-circuit has a first control terminal connected with a gate scan signal terminal, a second control terminal connected with a reset signal terminal, a first input terminal connected with a reference signal terminal, a second input terminal connected with an initialization signal terminal, a first output terminal connected with a first node, and a second output terminal connected with a second node;
• and the initialization sub-circuit is configured to write a signal of the reference signal terminal into the first node under the control of the gate scan signal terminal, and to write a signal of the initialization signal terminal into the second node under the control of the reset signal terminal;
• the data writing sub-circuit has a control terminal connected with the gate scan signal terminal, an input terminal connected with a data signal terminal, and an output terminal connected with the first node;
• and the data writing sub-circuit is configured to write a signal of the data signal terminal into the first node under the control of the gate scan signal terminal;
• the storage sub-circuit has one terminal connected with the first node, and the other terminal connected with the second node;
• and the storage sub-circuit is configured to write a difference between the signal of the reference signal terminal and the signal of the data signal terminal into the second node;
• the compensation sub-circuit has a control terminal connected with the gate scan signal terminal, a first terminal connected with a third node, and a second terminal connected with the second node;
• and the compensation sub-circuit is configured to write a threshold voltage of the driver sub-circuit into the second node;
• and
• the driver sub-circuit has a control terminal connected with the second node, an input terminal connected with a first power supply terminal, and an output terminal connected with the third node;
• the light-emission control sub-circuit has a first control terminal connected with the gate scan signal terminal, a second control terminal connected with the reset signal terminal, an input terminal connected with the third node, and an output terminal connected with one terminal of the light-emitting element, and the light-emitting element has the other terminal connected with a second power supply terminal;
• and the driver sub-circuit is configured, under the control of the second node, to drive the light-emitting element to emit light through the light-emission control sub-circuit which is turned-on.