US 12,326,994 B2
Touch device and driving method thereof
Jongsik Kim, Seongnam-si (KR); and Joohyun Go, Seongnam-si (KR)
Assigned to HIDEEP INC., Seongnam-si (KR)
Filed by HiDeep Inc., Seongnam-si (KR)
Filed on Oct. 28, 2022, as Appl. No. 17/975,714.
Claims priority of application No. 10-2021-0150748 (KR), filed on Nov. 4, 2021.
Prior Publication US 2023/0135676 A1, May 4, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0418 (2013.01) [G06F 3/0443 (2019.05); G06F 3/0446 (2019.05)] 7 Claims
OG exemplary drawing
 
1. A touch device comprising:
a plurality of touch electrodes directly on one side of an encapsulation layer of an organic light-emitting display panel; and
a touch controller for measuring a voltage varied based on a short circuit resistance of the touch electrodes and detecting short-circuit states of the touch electrodes,
wherein the short circuit resistance of the touch electrodes is formed through a defect in the encapsulation layer between one of the touch electrodes and a common electrode of the organic light-emitting display panel disposed beneath the encapsulation layer to which a common voltage is applied, and
wherein the common voltage is applied in common to pixels in the display panel.