US 9,851,850 B2 · Touch panel and touchscreen device including the same

Abstract

There are provided a touch panel and a touchscreen device including the same. The touch panel includes: a substrate; a plurality of first electrodes disposed on a lower surface of the substrate and extending in a first direction; and a plurality of second electrodes disposed on an upper surface of the substrate and extending in a second direction intersecting with the first direction, wherein the first and second electrodes include mesh-like conductive lines, a width of the second electrodes is wider than a width of the first electrodes, and a pitch of conductive lines of the second electrodes is greater than a pitch of conductive lines of the first electrodes.

Drawings

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Drawings

Claims16

Dependent claims

A touch panel, comprising:

a substrate;
a plurality of first electrodes disposed on a lower surface of the substrate and extending in a first direction;
a plurality of second electrodes disposed on an upper surface of the substrate and extending in a second direction intersecting with the first direction;
and a plurality of dummy electrodes respectively disposed between the first electrodes,
wherein the first and second electrodes include conductive lines formed in a mesh pattern a width of the second electrodes is wider than a width of the first electrodes, and a pitch of conductive lines of the second electrodes is greater than a pitch of conductive lines of the first electrodes,
wherein the first electrodes and the second electrodes, and a plurality of pads connected to the first electrodes and the second electrodes, are disposed on different regions of the substrate, wherein the width of the second electrodes is equal to two times the width of the first electrodes, and wherein the pitch of the conductive lines of the second electrodes is equal to two to three and half times the pitch of the conductive lines of the first electrodes.

3 more elements

A touchscreen device, comprising:

a panel unit including a plurality of first electrodes disposed on a lower surface of a substrate and extending in a first direction, and a plurality of second electrodes disposed on an upper surface of the substrate and extending in a second direction intersecting with the first direction;
and
a control unit applying driving signals to the plurality of first electrodes and detecting capacitance from the plurality of second electrodes so as to determine whether a touch has occurred,
wherein the first and second electrodes include conductive lines formed in a mesh pattern, a width of the second electrodes is wider than a width of the first electrodes, and a pitch of conductive lines of the second electrodes is greater than a pitch of conductive lines of the first electrodes,
wherein the panel unit further includes a plurality of dummy electrodes respectively disposed between the first electrodes,
wherein the first electrodes and the second electrodes, and a plurality of pads connected to the first electrodes and the second electrodes, are disposed on different regions of the substrate,
wherein the width of the second electrodes is equal to two times the width of the first electrodes, and
wherein the pitch of the conductive lines of the second electrodes is equal to two to three and half times the pitch of the conductive lines of the first electrodes.

5 more elements

A touch panel, comprising:

a substrate;
a plurality of first electrodes disposed on a lower surface of the substrate and extending in a first direction;
a plurality of second electrodes disposed on an upper surface of the substrate and extending in a second direction intersecting with the first direction;
and
a plurality of dummy electrodes respectively disposed between the first electrodes;
conductive lines formed in a mesh pattern disposed on a lower surface of the substrate;
and
conductive lines formed in a mesh pattern disposed on an upper surface of the substrate,
wherein the conductive lines disposed on the lower surface of the substrate are divided into a plurality of conductive regions and a plurality of non-conductive regions, the conductive regions and the non-conductive regions being arranged in a first direction with intersections between the conductive lines cut through,
wherein the conductive lines disposed on the upper surface are divided into a plurality of conductive regions, the conductive regions being arranged in a second direction with intersections between the conductive lines cut through,
wherein a width of the conductive regions disposed on the upper surface is wider than a width of the conductive regions disposed on the lower surface of the substrate,
wherein a pitch of the conductive lines disposed on the upper surface is greater than a pitch of the conductive lines disposed on the lower surface of the substrate,
wherein the first electrodes and the second electrodes, and a plurality of pads connected to the first electrodes and the second electrodes, are disposed on different regions of the substrate,
wherein the width of the conductive regions disposed on the upper surface is equal to two times the width of the conductive regions disposed on the lower surface of the substrate, and
wherein the pitch of the conductive lines disposed on the upper surface is equal to two to three and half times the pitch of the conductive lines disposed on the lower surface of the substrate.

12 more elements

Dependencies are inferred from the claim text.

Description5,585 words

Summary1,610 words

#This application claims the benefit of Korean Patent Application No. 10-2013-0162036 filed on Dec. 24, 2013, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.

#The present disclosure relates to a touch panel and a touchscreen device including the same.

#A touchscreen device such as a touchscreen or a touch pad is a data input device attached to a display device so as to provide an intuitive user interface, and has recently been widely applied to various electronic devices such as cellular phones, personal digital assistants (PDA), and a navigation devices. Particularly, as demand for smartphones has recently increased, touchscreens have been increasingly employed as devices able to provide users with various methods of data input in a limited form factor.

Brief description of the drawings11 figures

#The above and other aspects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

#FIG. 1 is a perspective view illustrating an appearance of an electronic device including a touchscreen device according to an exemplary embodiment of the present disclosure;

#FIG. 2 is a view of a touch panel included in a touchscreen device according to an exemplary embodiment of the present disclosure;

Detailed description3,735 words

#Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. In the drawings, the shapes and dimensions of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like elements.

#FIG. 1 is a perspective view illustrating an appearance of an electronic device including a touchscreen device according to an exemplary embodiment of the present disclosure.

#Referring to FIG. 1, the electronic device 100 according to the present embodiment may include a display device 110 outputting images from a display device, an input unit 120, an audio output unit 130 outputting sound, and a touch sensing device integrated with the display device 110.

Facts

Application

14/187,892Filed 24 Feb 2014

Priority

KR 10-2013-016203624 Dec 2013

Published

US 2015/0177872 A125 Jun 2015

Granted

26 Dec 2017

Term ends

23 Sep 2035

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 576 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification4 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 3/04166
Control or interface arrangements specially adapted for digitisers: details of scanning methods, e.g. sampling time, grouping of sub areas or time…
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…
G06F
Computing and data processing

Timeline

24 Dec 2013Priority claimedKR 10-2013-0162036
24 Feb 2014Application filedUS 14/187,892
26 Feb 2014Assigned to Samsung Electro-Mechanics Co., Ltd.assignment of assignor's interest
25 Jun 2015PublishedUS 2015/0177872 A1
26 Dec 2017GrantedUS 9,851,850 B2
12 Oct 2026TodayWithin its term
23 Sep 2035Term endsEstimated, includes 576 days of adjustment

Touch panel and touchscreen device including the same

Life of this patent

Touch panel and touchscreen device including the same

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims16

Description5,585 words

Drawings

Classification4 codes

Life of this patent

Description5,585 words