Patent ID: 11900877
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 8:
9. A display panel comprising:
a base substrate; and
an organic light-emitting diode control circuit formed on the base substrate, comprising:
an organic light-emitting diode;
an input control module connected to a scan line, a data line and the organic light-emitting diode, wherein the input control module is enabled in response to a scan signal provided by the scan line, and the input control module controls an operation of the organic light-emitting diode based on a data signal provided by the data line; and
a protection module connected to the organic light-emitting diode and the input control module, wherein the protection module is able to detect a current passing through the organic light-emitting diode or a voltage across the organic light-emitting diode, and controls the input control module to cut off power supply of the organic light-emitting diode when the current of the organic light-emitting diode or the voltage across the organic light-emitting diode is greater than a preset value;

wherein the input control module comprises:
a first transistor provided with a control terminal connected to the scan line, a first terminal connected to the data line, and a second terminal connected to a control terminal of a second transistor;
the second transistor provided with a first terminal connected to a second terminal of a third transistor and a second terminal connected to a first pole of the organic light-emitting diode;
the third transistor provided with a first terminal connected to a first power supply, wherein the protection module is connected to the control terminal of the first transistor or a control terminal of the third transistor, and the protection module indirectly controls the second transistor to cut off the power supply of the organic light-emitting diode by controlling the first transistor, or controls the third transistor to cut off the power supply of the organic light-emitting diode;
an AND gate circuit comprising a first input terminal connected to the scan line, a second input terminal connected to the protection module and an output terminal connected to the control terminal of the first transistor through a first node; and
a first NOT gate circuit connected to the first node and the control terminal of the third transistor,

wherein the protection module controls the second transistor to cut off the power supply of the organic light-emitting diode by controlling the AND gate circuit to output a low-level signal.