Patent ID: 11922839
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
pixels;
a sensing unit connected to the pixels through sensing lines; and
a compensator configured to calculate a current compensation value for each of the pixels based on a sensing value of the sensing unit,
wherein a first pixel among the pixels comprises:
a first transistor including a gate electrode connected to a first node, a first electrode connected to first power, and a second electrode connected to a second node;
a first light emitting diode including an anode connected to the second node, and a cathode; and
a second light emitting diode including an anode connected to the cathode of the first light emitting diode in series, and a cathode connected to a second power,

wherein the sensing unit is configured to output the sensing value by sensing a voltage of the second node in a sensing period,
wherein the compensator is configured to increase the current compensation value for the first pixel as the voltage of the second node decreases in the sensing period, and
wherein the first pixel further comprises:
a second transistor including a gate electrode connected to a first scan line, a first electrode connected to a data line, and a second electrode connected to the first node; and
a third transistor including a gate electrode connected to a second scan line, a first electrode connected to the second node, and a second electrode connected to a respective one of the sensing lines.