Patent ID: 11869415
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A display device comprising:
a display panel comprising:
data lines;
sweep signal lines and pulse width modulation (PWM) emission lines crossing the data lines; and
sub-pixels connected to the data lines, the sweep signal lines, and the PWM emission lines;

a source driver configured to apply data voltages to the data lines;
a sweep signal driver comprising a plurality of stages configured to sequentially output PWM emission signals to the PWM emission lines, and sequentially output sweep signals to the sweep signal lines,
wherein:
the plurality of stages comprises a kth stage configured to output a kth PWM emission signal to a kth PWM emission line, and output a kth sweep signal to a kth sweep signal line, where k is a natural number;
a pulse of the kth PWM emission signal includes a gate-on voltage;
a pulse of the kth sweep signal linearly changes from a gate-off voltage to the gate-on voltage; and
a pulse width of the kth PWM emission signal is greater than a pulse width of the kth sweep signal; and

an emission signal driver configured to sequentially output pulse amplitude modulation (PAM) emission signals to PAM emission lines that cross the data lines,
wherein a pulse of a kth PAM emission signal output to a kth PAM emission line of the PAM emission lines includes a gate-on voltage, and
a pulse width of the kth PAM emission signal is the same as the pulse width of the kth sweep signal.