US 11,854,469 B2
Display device determining reference frequency based on previous frame frequency, and method of operating the same
Kyung-Hun Lee, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jul. 25, 2022, as Appl. No. 17/814,613.
Claims priority of application No. 10-2021-0154543 (KR), filed on Nov. 11, 2021.
Prior Publication US 2023/0148307 A1, May 11, 2023
Int. Cl. G09G 5/10 (2006.01); G09G 3/32 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/2007 (2013.01); G09G 3/2096 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/028 (2013.01); G09G 2340/0435 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel including a plurality of pixels; and
a panel driver configured to drive the display panel,
wherein the panel driver is further configured to:
receive input image data at a variable input frame frequency;
store the variable input frame frequency as a previous frame frequency by monitoring the variable input frame frequency;
determine a reference frequency as a value between a minimum frequency and a maximum frequency of a predetermined variable frequency range of the variable input frame frequency based on the previous frame frequency;
determine a reference luminance as a luminance of the display panel at the reference frequency; and
adjust data voltages applied to the plurality of pixels such that a luminance of the display panel at the variable input frame frequency becomes the reference luminance.