US 11,379,067 B2Granted

Touch sensor and display device including the same

AssigneeSamsung Display Co., Ltd.

InventorsKyung Su Lee, Jong Hwa Kim, Duck Joong Kim, Il Joo Kim

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Abstract

A touch sensor includes first through third sensing areas, first through third sensing patterns respectively disposed in the first through third sensing areas, a sensing line disposed in a non-sensing area and electrically connected to the first sensing pattern, and a connection line disposed in the non-sensing area and disposed between the sensing line and the first sensing pattern. The connection line electrically connects the second and third sensing patterns. The touch sensor further includes a connection portion electrically connecting the sensing line and the first sensing pattern, a dummy line disposed between the sensing line and the connection line, a ground line disposed in the non-sensing area that transmits a ground voltage to the first to third sensing areas, and a bridge line electrically connecting the ground line and the dummy line.

Claims20

Dependent claims

A touch sensor, comprising:

a base layer having a sensing area and a non-sensing area disposed adjacent to the sensing area,
wherein the sensing area comprises a first sensing area, a second sensing area protruding from the first sensing area in a first direction in a plan view, and a third sensing area spaced apart from the second sensing area and protruding from the first sensing area in the first direction in the plan view;
a plurality of sensing patterns comprising a first sensing pattern disposed in the first sensing area, a second sensing pattern disposed in the second sensing area, and a third sensing pattern disposed in the third sensing area;
a sensing line disposed in the non-sensing area and electrically connected to the first sensing pattern;
a connection line disposed in the non-sensing area and disposed between the sensing line and the first sensing pattern in the plan view, wherein the connection line electrically connects the second sensing pattern and the third sensing pattern;
a connection portion electrically connecting the sensing line and the first sensing pattern;
a dummy line disposed between the sensing line and the connection line;
a ground line disposed in the non-sensing area, wherein the ground line is configured to receive a ground voltage;
and
a bridge line electrically connecting the ground line and the dummy line,
wherein the sensing line is disposed between the ground line and the dummy line in the plan view.

8 more elements

A display device, comprising:

a display member that displays an image;
a base layer having a sensing area and a non-sensing area disposed adjacent to the sensing area,
wherein the sensing area comprises a first sensing area, a second sensing area protruding from the first sensing area in a first direction in a plan view, and a third sensing area spaced apart from the second sensing area and protruding from the first sensing area in the first direction in the plan view;
a first sensing electrode comprising a plurality of first sensing patterns disposed in the sensing area, wherein the first sensing patterns are arranged in the first direction and are electrically connected to each other;
a second sensing electrode comprising a plurality of second sensing patterns disposed in the first sensing area, wherein the second sensing patterns are arranged in a second direction crossing the first direction and are electrically connected to each other;
a third sensing electrode comprising a first plurality of third sensing patterns disposed in the second sensing area, arranged in the second direction, and electrically connected to each other, and a second plurality of third sensing patterns disposed in the third sensing area, arranged in the second direction, and electrically connected to each other;
a first sensing line electrically connected to one end of the first sensing electrode;
a second sensing line electrically connected to one end of the second sensing electrode;
a connection line electrically connecting the first plurality of third sensing patterns and the second plurality of third sensing patterns, wherein the connection line is disposed between the first sensing line and the first sensing electrode;
a connection portion electrically connecting the first sensing line and the first sensing patterns;
a dummy line disposed between the first sensing line and the connection line;
a ground line disposed in the non-sensing area, wherein the ground line is configured to receive a ground voltage;
and
a bridge line electrically connecting the ground line and the dummy line,
wherein the first sensing line is disposed between the ground line and the dummy line in the plan view.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/223,219Filed 6 Apr 2021 · continuation
Priority: KR 10-2018-01200768 Oct 2018
Published: US 2021/0223899 A122 Jul 2021
Granted: 5 Jul 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 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 3/04164
Control or interface arrangements specially adapted for digitisers: connections between sensors and controllers, e.g. routing lines between…
G06F 3/044
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: by capacitive means
H10K 50/11
OLEDs or polymer light-emitting diodes [PLED]: characterised by the electroluminescent [EL] layers

Family

Application16/592,272Parent of this continuation · filed 3 Oct 2019
US 2021/0223899 A1Pre-grant publication · published 22 Jul 2021
US 10,976,849 B2Parent of this continuation
US 2020/0110499 A1Published application
US 11,379,067 B2This patent

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