US 12,001,626 B2Granted

Touch display device

AssigneeLG Display Co., Ltd.

InventorsSul-Ki Kim, Gue-Tai Lee, Jin-Yeol Kim

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Abstract

A touch display device has an inspection process and a repair process that may be easily performed. The touch display device includes first and second touch electrodes spaced apart from each other and a dummy conductive layer spaced apart from at least one of the first touch electrodes and the second touch electrodes, and is characterized in that the shape of at least one of the first touch electrodes and the second touch electrodes arranged in first boundary areas is different from the shape of at least one of the first touch electrodes, the second touch electrodes and the dummy conductive layer arranged in second boundary areas, thereby rapidly detecting the position of a defect and improving efficiency of inspection and repair processes.

Claims20

Dependent claims

A touch display device, comprising:

a plurality of light emitting elements arranged on a substrate;
an encapsulation layer arranged on the light emitting elements;
a plurality of first touch electrodes arranged on the encapsulation layer;
and
a plurality of second touch electrodes arranged on the encapsulation layer and spaced apart from and adjacent to the first touch electrodes in a first boundary area,
wherein the first touch electrodes include a plurality of first protrusions arranged in the first boundary area, and a first protrusion and another first protrusion nearest the first protrusion among the first protrusions extend parallel with each other in a first direction in the first boundary area,
wherein the second touch electrodes include a plurality of second protrusions arranged in the first boundary area, and a second protrusion among the second protrusions extends in the first direction, and
wherein an internal angle of each of the first protrusion, the other first protrusion, and the second protrusion arranged in the first boundary area is an acute angle.

5 more elements

A touch display device, comprising:

a plurality of light emitting elements arranged on a substrate;
an encapsulation layer arranged on the light emitting elements;
a plurality of first touch electrodes arranged on the encapsulation layer;
and
a plurality of second touch electrodes arranged on the encapsulation layer and spaced apart from and adjacent to the first touch electrodes in a first boundary area, the first boundary area being between one of the first touch electrodes and one of the second touch electrodes adjacent to the one of the first touch electrodes,
wherein the first touch electrodes include a plurality of first protrusions arranged in the the boundary area,
wherein the second touch electrodes include a plurality of second protrusions arranged in the first boundary area, and
wherein a first protrusion among the first protrusions and a second protrusion nearest the first protrusion among the second protrusions in the first boundary area are aligned with each other and have different lengths from each other in the first boundary area.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/111,957Filed 21 Feb 2023 · continuation
Priority: KR 10-2019-009224730 Jul 2019
Published: US 2023/0205342 A129 Jun 2023
Granted: 4 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 3/0412
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: digitisers structurally integrated in a display
G06F 3/0446
By capacitive means: using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
H10K 59/40
Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00: oLEDs…
H10K 59/88
Constructional details: dummy elements, i.e. elements having non-functional features

Family

Application16/941,103Parent of this continuation · filed 28 Jul 2020
US 2023/0205342 A1Pre-grant publication · published 29 Jun 2023
US 11,614,815 B2Parent of this continuation
US 2021/0034185 A1Published application
US 12,001,626 B2This patent

From the US filing history. Foreign family members aren’t listed.

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