US 12,277,889 B2
Display driver IC including dithering circuit capable of adaptively changing threshold grayscale value depending on display brightness value, device including the same, and method thereof
Byoungyoon Jang, Gimhae-si (KR); Yong Hoon Yu, Suwon-si (KR); Se Whan Na, Seoul (KR); Jong-Hee Na, Hwaseong-si (KR); and Hyeonsu Park, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 30, 2023, as Appl. No. 18/385,002.
Application 18/385,002 is a continuation of application No. 17/960,435, filed on Oct. 5, 2022, granted, now 11,810,495.
Claims priority of application No. 10-2022-0020896 (KR), filed on Feb. 17, 2022.
Prior Publication US 2024/0062698 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2044 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/145 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display driver integrated circuit (IC) for a display, comprising:
a data line driver configured to drive data lines connected with a first processing unit comprising a plurality of pixels; and
a dithering circuit configured to receive a brightness value of the display, to calculate a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, to receive input image data with a first grayscale value, and to generate output image data having an output grayscale value based on the first reference grayscale value and the first grayscale value.