US 11,726,625 B2
Touch member and a display device including the touch member
Ga Young Kim, Hwaseong-si (KR); and Sang Hyun Lim, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Feb. 1, 2022, as Appl. No. 17/590,009.
Claims priority of application No. 10-2021-0080093 (KR), filed on Jun. 21, 2021.
Prior Publication US 2022/0404931 A1, Dec. 22, 2022
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0446 (2019.05) [G06F 3/0442 (2019.05); G06F 3/0445 (2019.05)] 18 Claims
OG exemplary drawing
 
1. A touch member, comprising:
a first electrode disposed in a touch sensor area and extending in a first direction;
a second electrode disposed in the touch sensor area and extending in a second direction crossing the first direction;
touch pad areas located in a touch peripheral area around the touch sensor area; and
routing lines located in the touch peripheral area to connect the first electrode and the second electrode with the touch pad areas,
wherein the routing lines comprise a (1-1) routing line, a (1-2) routing line, a (2-1) routing line, and a (2-2) routing line,
the first electrode comprises a (1-1) electrode having a first end not connected to the routing lines and a second end connected to the (1-1) routing line, and a (1-2) electrode having a first end connected to the (1-2) routing line and a second end not connected to the routing lines,
the second electrode comprises a (2-1) electrode having a first end connected to the (2-1) routing line and a second end not connected to the routing lines, and a (2-2) electrode having a first end not connected to the routing lines and a second end connected to the (2-2) routing line,
the (1-1) electrode and the (1-2) electrode are alternately arranged in the second direction, and
the (2-1) electrode and the (2-2) electrode are alternately arranged in the first direction,
the touch member further comprising: a touch driving circuit for driving the first electrode and the second electrode,
wherein a touch driving period comprises a touch recognition period, a first-mode sensing period and a second-mode sensing period, and
wherein the touch recognition period comprises a standby period, a first mode period shorter than the standby period, and a second mode period shorter than the standby period, wherein only sensing for an input by a part of a body is made in the first mode period and only sensing for an input by an electronic pen is made in the second mode period.