US 11,670,237 B2
Display device having data driver with reduced signal noise
Jung Ki Min, Yongin-si (KR); Wook Lee, Yongin-si (KR); and Sang Jae Yeo, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Nov. 9, 2020, as Appl. No. 17/92,966.
Claims priority of application No. 10-2020-0031999 (KR), filed on Mar. 16, 2020.
Prior Publication US 2021/0287608 A1, Sep. 16, 2021
Int. Cl. G09G 3/3266 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3266 (2013.01) [G09G 3/3291 (2013.01); G09G 2310/027 (2013.01); G09G 2310/08 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a display unit including pixels coupled to scan lines, sensing scan lines, data lines, and sensing lines;
a scan driver which supplies a scan signal to the scan lines, and supplies a sensing scan signal to the sensing scan lines; and
a data driver which supplies an image data voltage to the data lines, and detects sensing values of the pixels on a pixel column basis through the sensing lines during a sensing period,
wherein the data driver comprises an analog-to-digital converter which converts the detected sensing values into digital data during the sensing period and outputs sensing data,
wherein the analog-to-digital converter pauses the detection of the sensing values during a first period of the sensing period, and detects the sensing values in a second period of the sensing period,
wherein the data driver further comprises a clock generator which sequentially outputs a plurality of sensing clocks,
wherein the analog-to-digital converter outputs the sensing data based on the sensing clocks, and
wherein the clock generator pauses the output of the sensing clocks during the first period.