US 11,768,571 B2Granted

Touch sensor and display device

AssigneeSamsung Display Co., Ltd.

InventorsJang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo

Life of this patent

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Abstract

The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.

Claims16

Dependent claims

A display device including a first display area and a second display area which extends and is angled from one side of the first display area, the display device comprising:

a base substrate;
a self-luminous element disposed on the base substrate;
an inorganic layer disposed on the self-luminous element;
a touch sensor layer disposed on the inorganic layer, wherein
the touch sensor layer includes a first touch electrode disposed in the second display area and including a first opening, a second touch electrode disposed in the second display area and including a second opening, and a first pressure sensor disposed in the second display area and including a first strain gauge,
the first strain gauge includes a first resistance line and a second resistance line which are disposed in the first opening of the first touch electrode,
the first pressure sensor further includes a first conductor which is disposed in the second display area and has a different shape from the first strain gauge, and
the first conductor includes a first conductive pattern and a second conductive pattern which are disposed in the second opening of the second touch electrode.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/546,992Filed 9 Dec 2021 · continuation
Priority: KR 10-2019-00382612 Apr 2019
Published: US 2022/0137736 A15 May 2022
Granted: 26 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

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
G06F 3/045
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: using resistive elements, e.g. a single continuous…
G06F 3/0418
Control or interface arrangements specially adapted for digitisers: for error correction or compensation, e.g. based on parallax, calibration or…
G06F 3/0443
By capacitive means: using a single layer of sensing electrodes

Family

Application16/835,784Parent of this continuation · filed 31 Mar 2020
US 2022/0137736 A1Pre-grant publication · published 5 May 2022
US 11,231,825 B2Parent of this continuation
US 2020/0319735 A1Published application
US 11,768,571 B2This patent

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