Patent ID: 11948495
Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A driving method of a display panel, comprising:
S10, providing a driving circuit comprising at least one source driving chip connected to the display panel, a timing controller connected to the at least one source driving chip and a power management circuit chip, wherein a first end of the power management circuit chip is connected to the timing controller and a second end of the power management circuit chip is connected to the at least one source driving chip;
S20, outputting, by the power management circuit chip, a data driving voltage and a gamma voltage to each source driving chip; and
S30, determining, by the source driving chip, whether a voltage difference between the data driving voltage and the gamma voltage is within a predetermined range and deciding, by the driving circuit based on a result of the determination, whether to adjust the data driving voltage and the gamma voltage, wherein the S30 comprises:
determining, by a voltage comparator of the source driving chip, whether the voltage difference is within the predetermined range;
if yes, outputting, by the source driving chip, a driving signal to the display panel; and
if no, outputting, by the source driving chip, a voltage difference signal to the timing controller, transmitting, by the timing controller, a control signal, and adjusting, by the driving circuit, the driving voltage and/or the gamma voltage based on the control signal.