US 12,656,894 B2Granted

Touch sensor and display device including the same

AssigneeSamsung Display Co., Ltd.

InventorsDo Ik Kim, Ga Young Kim, Sang Hyun Lim, Young Sik Kim, Sang Chul Lee, Hwan Hee Jeong

Life of this patent

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Abstract

A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

Claims17

Dependent claims

A touch sensor comprising:

a first electrode comprising first electrode portions arranged in a first direction, each of the first electrode portions having a mesh shape including first openings;
a second electrode comprising second electrode portions arranged in the first direction, each of the second electrode portions having a mesh shape including second openings;
and
a third electrode comprising third electrode portions arranged in a second direction crossing the first direction, each of the third electrode portions having a mesh shape including third openings,
wherein adjacent ones of the second electrode portions are connected to each other through the first openings, and
wherein ones of the first electrode portions surround corresponding ones of the second electrode portions in a closed-loop shape in a plan view.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/893,943Filed 23 Sep 2024 · continuation
Priority: KR 10-2017-006013815 May 2017
Published: US 2025/0013327 A19 Jan 2025
Granted: 16 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 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 3/0418
Control or interface arrangements specially adapted for digitisers: for error correction or compensation, e.g. based on parallax, calibration or…
G06F 3/04182
For error correction or compensation, e.g. based on parallax, calibration or alignment: filtering of noise external to the device and not…
G06F 3/044
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: by capacitive means

Family

Application15/978,355Parent of this continuation · filed 14 May 2018
Application16/945,086Parent of this continuation · filed 31 Jul 2020
US 10,732,746 B2Parent of this continuation · filed 4 Aug 2020
Application17/532,918Parent of this continuation · filed 22 Nov 2021
US 11,182,005 B2Parent of this continuation · filed 23 Nov 2021
Application18/209,444Parent of this continuation · filed 13 Jun 2023
US 11,714,503 B2Parent of this continuation · filed 1 Aug 2023
US 2025/0013327 A1Pre-grant publication · published 9 Jan 2025
US 12,099,671 B2Parent of this continuation
US 2018/0329555 A1Published application
US 2020/0363893 A1Published application
US 2022/0155895 A1Published application
US 2023/0325019 A1Published application
US 12,656,894 B2This patent

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