Display panel and display apparatus

A display panel, comprising a base substrate and a sub-pixel on the base substrate, wherein the sub-pixel comprises a pixel circuit and a light-emitting element, and the pixel circuit comprises a data writing sub-circuit, a storage sub-circuit, a driver sub-circuit and a first sub-circuit, wherein

• the data writing sub-circuit is configured to transmit a data signal to a first terminal of the storage sub-circuit in response to a control signal,
• the driver sub-circuit comprises a control electrode, a first electrode and a second electrode, wherein the control electrode of the driver sub-circuit is coupled to the storage sub-circuit, the first electrode of the driver sub-circuit is configured to receive a first power supply voltage, the second electrode is coupled to a first electrode of the light-emitting element, and the driver sub-circuit is configured to drive the light-emitting element to emit light in response to a voltage of the control electrode, and
• the first sub-circuit comprises a first transistor, wherein a gate of the first transistor and a first electrode of the first transistor are both coupled to the same electrode of the driver sub-circuit;
• and
• wherein the first transistor is a noise reduction transistor, and
• the driver circuit further comprises a bias transistor, the noise reduction transistor and the bias transistor are connected in series, and each of the noise reduction transistor and the bias transistor comprises a gate, a first electrode and a second electrode, wherein a gate of the noise reduction transistor and a first electrode of the noise reduction transistor are both coupled to the second electrode of the driver sub-circuit, a second electrode of the noise reduction transistor is coupled to a first electrode of the bias transistor, and a gate of the bias transistor is configured to receive a bias voltage, and a second electrode of the bias transistor is configured to receive a predetermined voltage.