US 11,741,891 B2
Display device and driving method thereof
Jae Yeong Go, Paju-si (KR); Tae Gung Kim, Paju-si (KR); and Dae Sung Park, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 13, 2022, as Appl. No. 17/965,167.
Claims priority of application No. 10-2021-0191865 (KR), filed on Dec. 29, 2021.
Prior Publication US 2023/0206824 A1, Jun. 29, 2023
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0205 (2013.01); G09G 2310/0221 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/08 (2013.01); G09G 2340/0407 (2013.01); G09G 2340/16 (2013.01); G09G 2360/12 (2013.01)] 19 Claims
OG exemplary drawing
 
13. A method for driving a display device comprising:
detecting resolution information for each frame by analyzing a data signal input to display an image on a display panel;
monitoring a driving frequency for driving the display panel and generating a control signal according to whether the driving frequency is changed; and
defining an unknown area in which vertical resolution information is not known and a known area in which the vertical resolution information is known within one frame based on the resolution information and the control signal when the driving frequency of the display panel is changed, and varying a duty cycle of the known area by a duty cycle controller.