US 11,862,074 B2
Data driver circuit and display device having the same
Se-Byung Chae, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Dec. 22, 2022, as Appl. No. 18/145,287.
Claims priority of application No. 10-2021-0187789 (KR), filed on Dec. 24, 2021.
Prior Publication US 2023/0206828 A1, Jun. 29, 2023
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0275 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data driving circuit comprising:
a noise filter configured to receive a driving voltage and remove a noise from the driving voltage to output a filtered driving voltage;
a first voltage generator configured to output a first voltage, a second voltage, and a third voltage;
a second voltage generator configured to generate a first reference voltage based on the filtered driving voltage, the first voltage, and the second voltage;
a third voltage generator configured to generate a second reference voltage based on the filtered driving voltage, the second voltage, and the third voltage; and
an output circuit configured to output a data signal of a voltage level corresponding to an image signal based on the first reference voltage and the second reference voltage.