US 11,726,595 B2
Touch display apparatus
Min Seob Song, Paju-si (KR); and Sang Woo Seo, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 28, 2022, as Appl. No. 17/976,104.
Claims priority of application No. 10-2021-0194780 (KR), filed on Dec. 31, 2021.
Prior Publication US 2023/0214035 A1, Jul. 6, 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 3/04164 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A touch display apparatus comprising:
a device substrate including a display area and a pad area;
a plurality of light-emitting devices on the display area of the device substrate;
an encapsulating layer on the device substrate, the encapsulating layer on the plurality of light-emitting devices;
a touch sensor on the encapsulating layer, the touch sensor including a plurality of driving touch lines extending in a first direction and a plurality of sensing touch lines extending in a second direction that is different from the first direction;
a plurality of driving routing lines each connecting a corresponding one of the plurality of driving touch lines to a corresponding touch pad from a plurality of touch pads that are on the pad area;
a plurality of sensing routing lines each connecting a corresponding one of the plurality of sensing touch lines to a corresponding touch pad from the plurality of touch pads;
a first driving guard line between the display area and the plurality of driving routing lines, the first driving guard line applied a signal that is a same as a signal applied to the plurality of sensing touch lines; and
a first sensing guard line between the display area and the plurality of sensing routing lines, the first sensing guard line applied a signal that is a same as a signal applied to the plurality of driving touch lines.