US 11,720,194 B2
Touch detection device and display device including the same
Jung Mok Park, Hwaseong-si (KR); Min Hong Kim, Hwaseong-si (KR); Tae Joon Kim, Seongnam-si (KR); Jin Woo Park, Yongin-si (KR); Wan Kee Jun, Anyang-si (KR); and Hyun Wook Cho, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Feb. 10, 2022, as Appl. No. 17/668,966.
Claims priority of application No. 10-2021-0106079 (KR), filed on Aug. 11, 2021.
Prior Publication US 2023/0052993 A1, Feb. 16, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/0446 (2019.05); G06F 3/0448 (2019.05); G06F 2203/04103 (2013.01); G06F 2203/04111 (2013.01); G06F 2203/04112 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A touch detection device comprising:
a first touch insulating layer;
a connection electrode disposed on the first touch insulating layer;
a second touch insulating layer disposed on the connection electrode;
a driving electrode disposed on the second touch insulating layer and connected to the connection electrode through at least one touch contact hole; and
a sensing electrode disposed on the second touch insulating layer and spaced apart from the driving electrode,
wherein at least one of the driving electrode and the sensing electrode includes a conductive metal electrode and a metal oxide electrode,
wherein the metal oxide electrode is oxidized,
wherein the sensing electrode comprises a transfer electrode for transferring a voltage equal to an amount of charges stored at touch nodes formed where the driving electrode or the connection electrode overlaps the sensing electrode, and transfer floating electrodes separated from the transfer electrode and maintained in a floating state.