US 12,307,937 B2
Display device including a demultiplexer circuit
Dale Yim, Yongin-si (KR); and Seongkyun Kim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 10, 2023, as Appl. No. 18/447,816.
Claims priority of application No. 10-2022-0158023 (KR), filed on Nov. 23, 2022.
Prior Publication US 2024/0169875 A1, May 23, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/32 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/2003 (2013.01) [G09G 3/32 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0297 (2013.01); G09G 2330/021 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel including first, second, third and fourth data lines, and first, second, third and sub-pixels respectively coupled to the first, second, third and fourth data lines;
a data driver including a first output channel and a second output channel;
a demultiplexer circuit configured to selectively couple at least one of the first data line and the third data line to the first output channel in response to corresponding ones of first and second switching signals, and to selectively couple at least one of the second data line and the fourth data line to the second output channel in response to corresponding ones of third and fourth switching signals different from the first and second switching signals; and
a data comparing circuit configured to calculate a gray level difference between image data for the second sub-pixel and image data for the sub-pixel, and to compare the gray level difference with a reference difference, the first to fourth switching signals controlled based on a result of the comparison.