	US 12,437,685 B2
	Display device and inspection method thereof
Tae Hyeon Yang, Yongin-si (KR); Jun Young Ko, Yongin-si (KR); Han Su Cho, Yongin-si (KR); Tae Joon Kim, Yongin-si (KR); and Jae Woo Choi, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 14, 2024, as Appl. No. 18/804,628.
Application 18/804,628 is a continuation of application No. 18/469,768, filed on Sep. 19, 2023, granted, now 12,087,192.
Claims priority of application No. 10-2023-0028608 (KR), filed on Mar. 3, 2023.
Prior Publication US 2024/0404440 A1, Dec. 5, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/00 (2006.01); G09G 3/3233 (2016.01)

CPC G09G 3/006 (2013.01) [G06F 3/0412 (2013.01); G06F 3/04166 (2019.05); G06F 3/0418 (2013.01); G06F 3/0446 (2019.05); G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2330/12 (2013.01)]

5 Claims

1. A method for inspecting a display device comprising:

inputting a touch driving signal to a first touch electrode of a touch panel adjacent to a display panel;

receiving a touch sensing signal from a second touch electrode of the touch panel;

converting the touch sensing signal from a time domain to a frequency domain;

detecting at least one peak in a converted touch sensing signal; and

determining a defect in the display panel based on the at least one peak.