Patent ID: 11967273
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G

Claim 13:
14. A display, comprising: a plurality of backlight strings and a LED drive chip, the LED drive chip is provided with a plurality of output voltage feedback terminals, each of the backlight strings is connected with one of the output voltage feedback terminals of the LED drive chip, and the LED drive chip is provided with a control circuit comprising:
a control sub-circuit;
a detection circuit, connected with a plurality of output voltage feedback terminals of a drive chip, and the detection circuit being connected with the control sub-circuit; and
a voltage regulating circuit, wherein the voltage regulating circuit comprises: a first resistor and a second resistor; a first terminal of the first resistor being connected to an external power supply, a second terminal of the second resistor being grounded, and a second terminal of the first resistor and the first terminal of the second resistor being connected for providing with the second voltage,
wherein the detection circuit is configured for providing a first voltage to the control sub-circuit when a voltage of at least one output voltage feedback terminal in the plurality of output voltage feedback terminals is detected, the first voltage being greater than a second voltage received by the control sub-circuit; and
the control sub-circuit is configured for controlling the drive chip to restart when the first voltage is greater than the second voltage.