Patent ID: 11869431
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A display device comprising:
a display panel comprising:
scan lines;
a first power line;
a second power line; and
pixels connected to the scan lines, the first power line, and the second power line;

a scan driver configured to sequentially output scan signals to the scan lines; and
a power provider comprising:
a first power converter configured to convert an input voltage to output a first power voltage to the display panel through the first power line;
a second power converter configured to convert the input voltage to output a second power voltage to the display panel through the second power line; and
a short circuit detecting circuit configured to detect a short-circuit of the first power line and the second power line in the display panel, by determining whether or not a level of a sensed voltage measured at the second power line is greater than or equal to a reference short circuit voltage level in response to a sensing enable signal output during a short circuit detecting period,

wherein the short circuit detecting circuit is configured to vary a length of the short circuit detecting period and the reference short circuit voltage level in response to a driving frequency, and
wherein the short circuit detecting circuit is configured to delay the output of the sensing enable signal based on a first pre-charge end signal.