US 12,254,844 B2
Display driving circuit and operating method thereof
Jiyong Jeong, Suwon-si (KR); Yongjoo Song, Suwon-si (KR); Jeongah Ahn, Suwon-si (KR); Hajun Lee, Suwon-si (KR); and Youngsub Jin, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 23, 2023, as Appl. No. 18/213,632.
Application 18/213,632 is a continuation of application No. 16/803,042, filed on Feb. 27, 2020, granted, now 11,727,888.
Claims priority of application No. 10-2019-0046943 (KR), filed on Apr. 22, 2019.
Prior Publication US 2023/0335066 A1, Oct. 19, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/3225 (2016.01); G09G 3/3258 (2016.01); G09G 3/3275 (2016.01); G09G 3/3291 (2016.01); G09G 3/36 (2006.01); H10K 50/805 (2023.01)
CPC G09G 3/3291 (2013.01) [G09G 2310/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display driving circuit configured to drive a display panel, the display panel comprising a plurality of data lines, a plurality of sensing lines, and a plurality of sub-pixels connected to the plurality of data lines and the plurality of sensing lines, the display driving circuit comprising:
a data driver integrated circuit configured to drive the plurality of data lines, wherein the data driver integrated circuit comprises:
a driving block comprising a plurality of digital-analog converters (DACs), each of the plurality of DACs converting sub-pixel data that is received to a grayscale voltage, the driving block being configured to provide the grayscale voltages output from the plurality of DACs to the plurality of data lines;
a sensing block configured to measure the grayscale voltages output from the plurality of DACs in a first operation mode and measure pixel voltages of the plurality of sub-pixels received from the plurality of sensing lines in a second operation mode; and
a plurality of first switches, each connected between a corresponding DAC among the plurality of DACs and the sensing block, wherein the plurality of first switches are turned on to provide the grayscale voltages from the plurality of DACs to the sensing block in the first operation mode and turned off in the second operation mode.