Patent ID: 11928999
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display panel including a plurality of pixel regions;
a gate driver configured to sequentially supply light emission control signals to horizontal lines of the display panel;
a data driver configured to supply a source voltage corresponding to a data signal, corrected by gamma correction data, to the display panel; and
a dimming controller configured to control whether to gradually change a frame frequency and the gamma correction data according to a duty ratio of the light emission control signals,
wherein the dimming controller receives a first duty ratio and a second duty ratio as inputs, and when the duty ratio of the light emission control signals is within a range from the first duty ratio to the second duty ratio, the dimming controller controls the frame frequency and the gamma correction data so as to be gradually changed such that N frames having N frame frequencies (N is a natural number not less than 3) between a first frame frequency of a first frame and a second frame frequency of a second frame are generated between the first frame and the second frame, and when the duty ratio of the light emission control signals is outside the range from the first duty ratio to the second duty ratio, the dimming controller does not control the frame frequency and the gamma correction data so as to be gradually changed.