CPC G09G 3/3233 (2013.01) [H10K 59/131 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01)] | 19 Claims |
1. A pixel circuit, comprising a drive sub-circuit, a writing sub-circuit, a reset sub-circuit, a voltage stabilizing sub-circuit, a storage sub-circuit and a light emitting element, wherein
the drive sub-circuit is configured to provide a driving current to the light emitting element under control of signals of a first node and a second node;
the writing sub-circuit is configured to write a signal of a data signal terminal to the second node under control of a signal of a scan signal terminal;
the storage sub-circuit is configured to store a voltage of the first node;
the voltage stabilizing sub-circuit is configured to stabilize a voltage of an anode terminal of the light emitting element through a signal of a voltage stabilizing signal terminal; and
the reset sub-circuit is configured to reset the anode terminal of the light emitting element under control of the signal of the scan signal terminal and reset the first node under control of a signal of a reset control signal terminal;
the pixel circuit further comprises a compensation sub-circuit, a first light emitting control sub-circuit and a second light emitting control sub-circuit, wherein
the compensation sub-circuit is configured to compensate a threshold voltage of the drive sub-circuit under control of the signal of the scan signal terminal;
the first light emitting control sub-circuit is configured to form a conductive path between a first voltage terminal and the second node under control of a signal of a light emitting control signal terminal;
the second light emitting control sub-circuit is configured to form a conductive path between a third node and a fourth node under control of the signal of the light emitting control signal line; and
one terminal of the light emitting element is connected with the fourth node, and the other terminal of the light emitting element is connected with a second voltage terminal;
the voltage stabilizing sub-circuit comprises a second capacitor;
the drive sub-circuit comprises a third transistor;
the first light emitting control sub-circuit comprises a fifth transistor;
the second light emitting control sub-circuit comprises a six transistor;
in a light emitting stage, the signal of the light emitting control signal terminal is a low-level signal, and the signal of the scan signal terminal and the signal of the reset control signal terminal are both high-level signals; the signal of the light emitting control signal terminal is the low-level signal, so that the fifth transistor and the sixth transistor are turned on; a power supply voltage output by the first voltage terminal provides a drive voltage to a first electrode of the light emitting element through the turned-on fifth transistor, third transistor and sixth transistor, and the light emitting element emits light;
in the light emitting stage, while charging the fourth node, the second capacitor is charged; when the light emitting element stably emits light, two terminals of the second capacitor maintain a fixed potential difference, so that the fourth node is not be affected by crosstalk of adjacent transparent traces.
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