US 12,254,834 B2
Data driver and data voltage setting method thereof
Jung Kook Park, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 28, 2022, as Appl. No. 17/732,258.
Application 17/732,258 is a continuation of application No. 16/932,656, filed on Jul. 17, 2020, granted, now 11,335,268.
Application 16/932,656 is a continuation of application No. 15/297,675, filed on Oct. 19, 2016, granted, now 10,726,783, issued on Jul. 28, 2020.
Claims priority of application No. 10-2015-0145995 (KR), filed on Oct. 20, 2015.
Prior Publication US 2022/0254309 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3258 (2016.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 3/20 (2013.01); G09G 3/2074 (2013.01); G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/0275 (2013.01); G09G 2310/0291 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0646 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display device, comprising:
a panel comprising pixels; and
a data driver to supply a first data voltage corresponding to a first grayscale value, a second data voltage corresponding to a second grayscale value lower than the first grayscale value, and a third data voltage corresponding to a third grayscale value lower than the second grayscale value, to the pixels,
wherein the third data voltage is based on a sum of a voltage variation and the second data voltage, and
wherein when a voltage level difference between the first data voltage and the second data voltage is greater than a first reference voltage level difference and less than a second reference voltage level difference, a value of the voltage variation is greater than when the difference between the first data voltage and the second data voltage is less than the first reference voltage level difference, and is less than when the difference between the first data voltage and the second data voltage is greater than the second reference voltage level difference.