Patent ID: 11972730
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display panel comprising a plurality of pixels; and
a panel driver, which drives the display panel during a plurality of driving frames of which frequencies are varied, wherein the plurality of driving frames includes a first driving frame having a first frequency and comprising a first write period, and a second driving frame having a second frequency lower than the first frequency and comprising a second write period and a variable blank period,
wherein the panel driver comprises:
a data driver, which outputs data signals; and
a driving controller, which controls a drive of the data driver,
wherein each of the first and second write periods comprises N horizontal periods, each of the N horizontal periods has a first duration, each of the first and second write periods has a second duration corresponding to N times of the first duration, N is an integer number equal to or greater than 1, and the driving controller applies a training synchronizing signal used to train a phase locked loop in the data driver to the data driver during the variable blank period.