US 11,237,684 B2Granted

Touch detection device

AssigneeJapan Display Inc.

InventorMasahiro Teramoto

Life of this patent

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Abstract

A touchscreen includes a plurality of X electrodes extending in a first direction and arranged in parallel in a second direction, a plurality of Y electrodes extending in the second direction so as to intersect the X electrodes and arranged in parallel in the first direction, and pedestal layers formed at respective intersections between the plurality of X electrodes and the plurality of Y electrodes, wherein an intersection portion of each Y electrode is formed under the pedestal layer, wherein a part of an intersection portion of each X electrode is formed on the pedestal layer and both ends thereof are electrically connected to adjacent electrode portions of the X electrodes, and wherein a profile of a portion of the pedestal layer intersecting the intersection portion of the X electrode has a nonlinear shape when viewed from a direction perpendicular to the substrate.

Claims20

Dependent claims

A touch detection device comprising:

a substrate with a first electrode running in a first direction and having a first region and a second region facing the first region in the first direction, the first region being separated from the second region with a gap;
an insulating layer located on a first part of the first region, a first part of the second region, and a part of the gap continuously;
and
a first intersection portion electrically connecting the first region to the second region and continuously covering a top surface of the insulating layer, a side surface of the insulating layer, a second part of the first region, and a second part of the second region, the second part of the first region and the second part of the second region not overlapping the insulating layer,
wherein the insulating layer does not have a hole that exposes the first electrode,
the insulating layer has an overlapping area located on one of the first region and the second region and overlapping the first intersection portion, and
a profile of the overlapping area of the insulating layer has a nonlinear shape in a plan view.

4 more elements

A touch detection device comprising:

a substrate with first electrodes running in a first direction and arranged in a second direction intersecting the first direction, each of the first electrodes having a first region and a second region facing the first region in the first direction, the first region being separated from the second region with a gap;
an insulating layer located on a first part of the first region, a first part of the second region, and a part of the gap continuously;
and
a first intersection portion electrically connecting the first region to the second region and continuously covering a top surface of the insulating layer, a side surface of the insulating layer, a second part of the first region, and a second part of the second region, the second part of the first region and the second part of the second region not overlapping the insulating layer,
wherein the insulating layer does not have a hole that exposes the first electrode,
the insulating layer has an overlapping area located on one of the first region and the second region and overlapping the first intersection portion, and
a profile of the overlapping area of the insulating layer has a nonlinear shape in a plan view.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/832,434Filed 27 Mar 2020 · continuation
Priority: JP 2011-2418484 Nov 2011
Published: US 2020/0225803 A116 Jul 2020
Granted: 1 Feb 2022
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 3/0412
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: digitisers structurally integrated in a display
G06F 3/0443
By capacitive means: using a single layer of sensing electrodes
G06F 2203/04111
Indexing scheme relating to G06F3/041 - G06F3/045: cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the…

Family

Application13/667,019Parent of this continuation · filed 2 Nov 2012
Application14/719,415Parent of this continuation · filed 22 May 2015
US 9,134,861 B2Parent of this continuation · filed 15 Sep 2015
Application15/259,977Parent of this continuation · filed 8 Sep 2016
US 9,465,498 B2Parent of this continuation · filed 11 Oct 2016
Application16/019,717Parent of this continuation · filed 27 Jun 2018
US 10,031,617 B2Parent of this continuation · filed 24 Jul 2018
US 2020/0225803 A1Pre-grant publication · published 16 Jul 2020
US 10,642,411 B2Parent of this continuation
US 2013/0113740 A1Published application
US 2015/0253906 A1Published application
US 2016/0378247 A1Published application
US 2018/0307370 A1Published application
US 11,237,684 B2This patent

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