US 12,141,406 B2
Touch display device
Jonghyun Han, Paju-si (KR); and Youngsoo Lee, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 15, 2023, as Appl. No. 18/197,610.
Application 18/197,610 is a continuation of application No. 17/493,493, filed on Oct. 4, 2021, granted, now 11,693,525.
Claims priority of application No. 10-2020-0165756 (KR), filed on Dec. 1, 2020.
Prior Publication US 2023/0289019 A1, Sep. 14, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0446 (2019.05) [G06F 3/04164 (2019.05); G06F 2203/04112 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A touch display device comprising:
a substrate;
at least one transistor on the substrate;
an organic light-emitting diode on the at least one transistor;
an encapsulation layer on the organic light-emitting diode;
a touch buffer on the encapsulation layer;
a plurality of touch electrodes comprising at least one X-touch electrode and at least one Y-touch electrode on the touch buffer;
a touch sensing circuit electrically connected with the plurality of touch electrodes;
a black matrix on the plurality of touch electrodes;
a plurality of color filters on the black matrix;
at least one dummy metal disposed adjacent the at least one X-touch electrode and disconnected from the at least one X-touch electrode; and
first and second routing line portions electrically connecting the plurality of touch electrodes to a touch driving circuit,
wherein each of the at least one X-touch electrode and the at least one Y-touch electrode comprises a body portion and a plurality of wing portions connected to the body portion, and the plurality of wing portions of the X-touch electrode are disposed to engage with the plurality of wing portions of the Y-touch electrode,
wherein each of the plurality of wing portions of the X-touch electrode is extended from the body portion of the at least one X-touch electrode to the body portion of the at least one Y-touch electrode, and has a constant width,
wherein each of the plurality of wing portions of the Y-touch electrode is extended from the body portion of the at least one Y-touch electrode to the body portion of the at least one X-touch electrode, and has a constant width,
wherein the first routing line portion is disposed on a layer different from a layer on which the plurality of touch electrodes are disposed, and the second routing line portion is disposed on a same layer as a layer on which the plurality of touch electrodes are disposed, and the second routing line portion is connected to a corresponding touch electrode through the first routing line portion,
wherein the second routing line portion overlaps the first routing line portion, and
wherein the second routing line portion includes a first portion contacting at least one of the plurality of touch electrodes and a second portion physically separated from the first portion, the second portion being electrically connected to the first portion of the second routing line via the first routing line portion, a first contact hole between the first portion and the first routing line and a second contact hole between the second portion and the first routing line.