US 12,451,084 B2
Display driving circuit and display device including the same
Heejin Lee, Suwon-si (KR); Minsung Kim, Suwon-si (KR); Sunkwon Kim, Suwon-si (KR); Seongyoung Ryu, Suwon-si (KR); Uijong Song, Suwon-si (KR); Yilho Lee, Suwon-si (KR); and Yunrae Jo, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 13, 2024, as Appl. No. 18/741,906.
Claims priority of application No. 10-2023-0083771 (KR), filed on Jun. 28, 2023.
Prior Publication US 2025/0006137 A1, Jan. 2, 2025
Int. Cl. G09G 3/32 (2016.01); G09G 3/00 (2006.01); G09G 3/3275 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 3/006 (2013.01); G09G 2300/0838 (2013.01); G09G 2310/08 (2013.01); G09G 2330/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display driving circuit for driving a display panel including a data line, a sensing line, and a pixel connected to the data line and the sensing line, the display driving circuit comprising:
a control logic controlling an operation of the display driving circuit;
a source amplifier comprising a first input terminal, a second input terminal, and an output terminal, the source amplifier amplifying a pixel voltage for displaying an image on the display panel and providing the amplified pixel voltage to the pixel through the data line;
a first switching element connected between the first input terminal and the output terminal; and
a second switching element connected between the first input terminal and the sensing line,
wherein the control logic performs a first control to control the first switching element and the second switching element such that the source amplifier amplifies the pixel voltage, and performs a second control to control the first switching element and the second switching element such that the source amplifier compares a sample voltage that is input to the first input terminal through the sensing line with a comparison voltage input to the second input terminal and outputs comparison data based on a comparison result of the sample voltage with the comparison voltage.