US 10,474,305 B2Granted

Touch window

AssigneeLG Innotek Co., Ltd.

InventorsJung Hyuck Han, Yu Lim Choe, Chan Kyu Koo, Jun Sik Shin, Joon Hyuk Yang, Seung Jin Lee, Yu Hong Jeon

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Abstract

A capacitive touch window includes: a substrate; a cover substrate; and an electrode, wherein a portion of the substrate is flat and another portion thereof is curved, and the electrode includes: a first sensing electrode; a second sensing electrode including second unit sensing electrodes spaced apart from the first sensing electrode; a bridge electrode connecting the second unit sensing electrodes; and an insulating layer between the first sensing electrode and the bridge electrode. The first and second sensing electrodes are disposed on a same surface of the substrate. The bridge electrode includes: a first mesh line having a first width; a second mesh line having a second width; and a first cross area in which the first and second mesh lines cross each other, the first cross area having a third width, wherein the third width is 2 to 5 times the first width and the second width.

Claims23

Dependent claims

A capacitive touch window comprising:

a substrate including a first surface and a second surface opposite the first surface;
a cover substrate on the substrate;
and
an electrode on the substrate,
wherein the electrode comprises:
a first sensing electrode on the first surface of the substrate facing the cover substrate, and extending in one direction;
a second sensing electrode on the second surface of the substrate, and extending in another direction different from the one direction;
a first wire electrode electrically connected to the first sensing electrode, and disposed on the first surface of the substrate;
and
a second wire electrode electrically connected to the second sensing electrode, and disposed on the second surface of the substrate,
wherein each of the first and second sensing electrodes comprises:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a second direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width, the third width being a diagonal of the cross area;
and
opening parts formed by the first and second mesh lines;
and
a protective layer disposed on the second surface of the substrate,
wherein each of the first width, the second width is in the range of 0.1 μm to 10 μm, and
wherein the third width is 2 to 10 times each of the first width and the second width.

17 more elements

A touch device comprising;

a display panel;
and
a capacitive touch window on the display panel,
wherein the display panel comprises;
a first substrate;
a thin film transistor on the first substrate;
and
an organic light emitting device or a liquid crystal device on the thin film transistor,
wherein the capacitive touch window comprises;
a substrate including a first surface and a second surface opposite the first surface;
a cover substrate on the substrate;
and
an electrode on the substrate,
wherein the electrode comprises:
a first sensing electrode on the first surface of the substrate facing the cover substrate, and extending in one direction;
a second sensing electrode on the second surface of the substrate, and extending in another direction different from the one direction,
a first wire electrode electrically connected to the first sensing electrode, and disposed on the first surface of the substrate;
and
a second wire electrode electrically connected to the second sensing electrode, and disposed on the second surface of the substrate,
wherein each of the first and second sensing electrodes comprises:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a second direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width, the third width being a diagonal of the cross area;
and
opening parts formed by the first and second mesh lines;
and
a protective layer disposed on the second surface of the substrate,
wherein each of the first width, the second width is in the range of 0.1 μm to 10 μm, and
wherein the third width is 2 to 10 times each of the first width and the second width.

26 more elements

A capacitive touch window comprising:

a substrate including a first surface and a second surface opposite the first surface;
a cover substrate on the substrate having an active area and an unactive area;
an electrode on the substrate;
and
an outer dummy layer disposed on the unactive area,
wherein the electrode comprises:
a first sensing electrode on the first surface of the substrate facing the cover substrate, and extending in one direction;
a second sensing electrode on the second surface of the substrate, and extending in another direction different from the one direction;
a first wire electrode electrically connected to the first sensing electrode, and disposed on the first surface of the substrate;
and
a second wire electrode electrically connected to the second sensing electrode, and disposed on the second surface of the substrate,
wherein each of the first and second sensing electrodes comprises:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a second direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width, the third width being a diagonal of the cross area;
opening parts formed by the first and second mesh lines;
and
a protective layer disposed on the second surface of the substrate,
wherein the third width is 2 to 10 times each of the first width and the second width,
wherein the first and second widths is in the range of 0.1 μm to 10 μm,
wherein the first and second wire electrodes disposed on the outer dummy layer,
wherein the first and second sensing electrodes include at least one of Cr, Ni, Cu, Al, Ag, Mo, Au, Ti and the alloy thereof
a cross angle θ between the first and second mesh lines is in the range of 60° to 120°,
wherein first and second sensing electrodes disposed on the active area and unactive area
a printed circuit board connect the first and second wire electrodes
wherein the first and second wire electrodes include a material same of the first and second sensing electrodes,
a transparent adhesive layer interposed between the cover substrate and the substrate,
wherein the protective layer disposed on the active area and unactive area.

25 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/160,777Filed 15 Oct 2018 · continuation
Priority: KR 10-2014-016561825 Nov 2014
Published: US 2019/0095010 A128 Mar 2019
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 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
H05K 1/0296
Details: conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
H05K 3/28
Secondary treatment of printed circuits: applying non-metallic protective coatings
G06F 2203/04112
Indexing scheme relating to G06F3/041 - G06F3/045: electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very…

Family

Application14/814,730Parent of this continuation · filed 31 Jul 2015
Application15/709,767Parent of this continuation · filed 20 Sep 2017
US 9,891,769 B2Parent of this continuation · filed 13 Feb 2018
US 2019/0095010 A1Pre-grant publication · published 28 Mar 2019
US 10,139,980 B2Parent of this continuation
US 2016/0147336 A1Published application
US 2018/0024673 A1Published application
US 10,474,305 B2This patent

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