Patent ID: 11887528
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A display device, comprising:
a display panel including a plurality of pixel rows;
a power supply configured to provide a power voltage to the display panel;
an overcurrent protector configured to shutdown the power supply when at least one of the pixel rows is burnt, the overcurrent protector including:
a sensing controller configured to sense a first current of at least one first pixel row of the display panel in a first frame period, and configured to sense a second current of the first pixel row in a second frame period after the first frame period when the first current is greater than or equal to a first threshold value;
a burnt determiner configured to determine whether the first pixel row is burnt, and configured to provide a shutdown signal to the power supply when the first pixel row is burnt;
a frame counter configured to generate a frame period number based on input image data; and
a look-up table configured to store a pixel row number for a pixel row to be sensed corresponding to the frame period number,

wherein the sensing controller is configured to sense a current of the pixel row based on the pixel row number, and
wherein the burnt determiner is configured to compare the current with a threshold value, and update the pixel row number of the look-up table when the current is greater than or equal to the threshold value; and
a scan driver configured to provide a scan signal to the display panel,
wherein the sensing controller is configured to generate a scan start signal provided to the scan driver based on the pixel row number.