Driving circuit, display panel and display device

A display panel, comprising:

• a driving transistor, wherein a gate of the driving transistor is electrically connected with a first node, one of a source and a drain of the driving transistor is electrically connected with a first power source, and the other of the source and the drain of the driving transistor is electrically connected with a second node;
• a first transistor, wherein a gate of the first transistor is electrically connected with a scan line, one of a source and a drain of the first transistor is electrically connected with a data line, and the other of the source and the drain of the first transistor is electrically connected with the first node;
• a second transistor, wherein a gate of the second transistor is electrically connected with a control line, one of a source and a drain of the second transistor is electrically connected with a first terminal, and the other of the source and the drain of the second transistor is electrically connected with the first node;
• a third transistor, wherein a gate of the third transistor is electrically connected with a detection line, one of a source and a drain of the third transistor is electrically connected with the second node, the other of the source and the drain of the third transistor is electrically connected with a second terminal;
• a capacitor, wherein a first terminal of the capacitor is electrically connected with the first node, and a second terminal of the capacitor is electrically connected with the second node;
• and
• a light-emitting component, wherein a first terminal of the light-emitting component is electrically connected with the second node, and a second terminal of the light-emitting component is electrically connected with a second power source;
• wherein when the display panel is in an internal compensation mode, the first terminal is connected to receive a first initialization voltage, and the second terminal is connected to receive a second initialization voltage, when the display panel is in a detection mode, the second terminal is connected to receive a third initialization voltage, and a detection source is connected to receive a reference voltage and detects a voltage of the second node through the second terminal.

A display device, comprising:

• a gamma chip configured for outputting a first initialization voltage, a second initialization voltage, a third initialization voltage, and a reference voltage;
• and
• a display panel connected with the gamma chip, wherein the display panel comprises a driving circuit, and the driving circuit comprises:
• a gamma module configured for outputting the first initialization voltage and the second initialization voltage when the display panel is in an internal compensation mode, wherein the gamma module is further configured for outputting the third initialization voltage and the reference voltage when the display panel is in a detection mode;
• and
• a light-emitting module electrically connected with the gamma module, wherein when the display panel is in the internal compensation mode, the gamma module provides the first initialization voltage and the second initialization voltage to the light-emitting module to drive the light-emitting module to emit light;
• when the display panel is in the detection mode, the gamma module provides the third initialization voltage and the reference voltage to the light-emitting module to drive the light-emitting module to emit light;
• wherein the light-emitting module comprises:
• a driving transistor, wherein a gate of the driving transistor is electrically connected with a first node, one of a source and a drain of the driving transistor is electrically connected with a first power source, and the other of the source and the drain of the driving transistor is electrically connected with a second node;
• a first transistor, wherein a gate of the first transistor is electrically connected with a scan line, one of a source and a drain of the first transistor is electrically connected with a data line, and the other of the source and the drain of the first transistor is electrically connected with the first node;
• a second transistor, wherein a gate of the second transistor is electrically connected with a control line, one of a source and a drain of the second transistor is electrically connected with the gamma module, and the other of the source and the drain of the second transistor is electrically connected with the first node;
• a third transistor, wherein a gate of the third transistor is electrically connected with a detection line, one of a source and a drain of the third transistor is electrically connected with the second node, the other of the source and the drain of the third transistor is electrically connected with a first terminal of a first switching component and a first terminal of a second switching component, a second terminal of the first switching component is electrically connected with a first terminal of a detection source, and a second terminal of the second switching component and a second terminal of the detection source are electrically connected with the gamma module;
• a capacitor, wherein a first terminal of the capacitor is electrically connected with the first node, and a second terminal of the capacitor is electrically connected with the second node;
• and
• a light-emitting component, wherein a first terminal of the light-emitting component is electrically connected with the second node, and a second terminal of the light-emitting component is electrically connected with a second power source.