US 12,282,618 B2
Display apparatus
Taejoon Ahn, Paju-si (KR); and Bongki Choi, Goyang-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 23, 2023, as Appl. No. 18/382,711.
Claims priority of application No. 10-2022-0138552 (KR), filed on Oct. 25, 2022.
Prior Publication US 2024/0134472 A1, Apr. 25, 2024
Prior Publication US 2024/0231519 A9, Jul. 11, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/3225 (2016.01)
CPC G06F 3/0412 (2013.01) [G06F 3/04164 (2019.05); G06F 3/0445 (2019.05); G06F 3/0446 (2019.05); G09G 3/3225 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display area and a non-display area, wherein the non-display area includes a pad area;
a plurality of pixels including a light emitting diode and a transistor in the display area, wherein the light emitting diode comprises a first electrode, an emission element, and a second electrode, and wherein the transistor comprises a gate electrode, a source electrode, and a drain electrode;
an encapsulation structure which is disposed in the display area and a part of the non-display area;
a touch structure, wherein at least a portion of the touch structure is disposed on the encapsulation structure, wherein the touch structure comprises a plurality of touch dielectric layers and a plurality of touch conductive electrodes, wherein the plurality of touch dielectric layers comprises a first touch dielectric layer, a second touch dielectric layer and a third touch dielectric layer, and wherein the plurality of touch conductive electrodes comprises a first touch conductive electrode and a second touch conductive electrode;
a routing line formed of a same layer and of a same material as the second touch conductive electrode and connected to the second touch conductive electrode;
another routing line disposed in the non-display area; and
a touch pad disposed in the pad area and comprising a first touch pad and a second touch pad,
wherein:
the first and second touch dielectric layers are disposed on the encapsulation structure;
the second touch conductive electrode is disposed on the first touch conductive electrode;
the first touch pad is formed of a same layer and of a same material as the source electrode of the transistor or the drain electrode of the transistor;
the routing line is extended and connected to the second touch pad;
the second touch pad is formed of a same layer and of a same material as the routing line and the second touch conductive electrode;
at least one of the first and second touch dielectric layers is extended to the pad area and is disposed under the second touch pad;
the second touch pad is disposed on the first touch pad;
the second touch pad is connected to the first touch pad using at least an opening in the at least one of the first and second touch dielectric layers;
the non-display area includes a cutting surface; and
in a portion of the non-display area, the routing line is disposed on the another routing line, and the second and third touch dielectric layers are disposed between the routing line and the another routing line.