CN109656427B - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN109656427B CN109656427B CN201811330063.8A CN201811330063A CN109656427B CN 109656427 B CN109656427 B CN 109656427B CN 201811330063 A CN201811330063 A CN 201811330063A CN 109656427 B CN109656427 B CN 109656427B
- Authority
- CN
- China
- Prior art keywords
- layer
- touch screen
- capacitive touch
- sending
- touch area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
A capacitive touch screen is provided with a touch area and a non-touch area arranged around the touch area and comprises a sending layer, a receiving layer and a first bonding layer arranged between the sending layer and the receiving layer; a plurality of first wires are arranged on the sending layer; a plurality of second wires are arranged on the receiving layer; an anti-interference material and an insulating material are arranged in the first bonding layer, or an anti-interference insulating layer is arranged between the transmitting layer and the first bonding layer; the orthographic projection parts of the first routing lines and the second routing lines on the capacitive touch screen are overlapped. Through set up the rete that has insulating effect between sending layer and receiving layer, reduced the signal interference between sending layer and the receiving layer for sending layer and receiving layer realize the overlapping in different planes at the regional line of frame, and then have narrowed the frame of touch-control screen.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a capacitive touch screen.
Background
Touch technology is generally used as an education whiteboard and a high-end conference machine in the field of commercial display, and a large-size touch screen is required for convenience in operation and demonstration. Currently, the mainstream touch technology is an infrared technology, although the price of an infrared touch screen is cheaper than that of a capacitive touch screen, the touch experience is poorer, and at present, the capacitive touch screen is loved by more and more users due to the relatively sensitive touch experience of the capacitive touch screen.
However, the frame of the existing capacitive touch screen is similar to that of the infrared touch screen, and the problem that the frame is relatively wide exists, the frame area is generally used for arranging conductive circuits for connecting the touch electrodes and an external processor, the width of the frame of the touch screen is directly influenced by the width of the conductive circuits, the number of the conductive circuits is increased along with the increase of the size of the screen, and the existing touch screen cannot meet the use requirement of a user on the narrow frame in a light and thin mode. Therefore, the narrowing design of the touch bezel is a subject of research.
Disclosure of Invention
The invention provides a capacitive touch screen, which aims to solve the problem that the display effect is influenced by the fact that the frame is wide due to more lines distributed in the frame area of the conventional touch screen
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a capacitive touch screen, which is defined with a touch area and a non-touch area arranged around the touch area, and comprises: a transmitting layer, a receiving layer disposed on the transmitting layer, and a first adhesive layer disposed between the transmitting layer and the receiving layer; a plurality of first wires are arranged on the part, corresponding to the non-touch area, of the sending layer; a plurality of second routing wires are arranged on the part, corresponding to the non-touch area, of the receiving layer; the first bonding layer is internally provided with an anti-interference material and an insulating material; the orthographic projection parts of the first routing lines and the second routing lines on the capacitive touch screen are overlapped.
In at least one embodiment of the present invention, the capacitive touch screen further includes a binding pad, and the binding pad is located in a non-touch area of the capacitive touch screen.
In at least one embodiment of the present invention, a driving electrode is disposed on a portion of the transmitting layer corresponding to the touch area.
In at least one embodiment of the present invention, the driving electrode is connected to the bonding pad through the first trace.
In at least one embodiment of the present invention, a portion of the receiving layer corresponding to the touch area is provided with a sensing electrode.
In at least one embodiment of the present invention, the sensing electrode is connected to the bonding pad through the second trace.
In at least one embodiment of the present invention, the first adhesive layer is an optical glue.
In at least one embodiment of the invention, the anti-interference material and the insulating material doped in the first bonding layer are transparent materials.
In at least one embodiment of the present invention, the capacitive touch screen further includes a second adhesive layer, and the second adhesive layer is disposed on a surface of the sending layer on a side away from the first adhesive layer.
The present invention also provides a capacitive touch screen, which defines a touch area and a non-touch area surrounding the touch area, and the capacitive touch screen includes: a transmitting layer, a receiving layer disposed on the transmitting layer, and a first adhesive layer disposed between the transmitting layer and the receiving layer; a plurality of first wires are arranged on the part, corresponding to the non-touch area, of the sending layer; a plurality of second routing wires are arranged on the part, corresponding to the non-touch area, of the receiving layer; an anti-interference insulating layer is arranged between the sending layer and the first bonding layer; the orthographic projection parts of the first routing lines and the second routing lines on the capacitive touch screen are overlapped.
In at least one embodiment of the present invention, an anti-interference insulating layer is disposed on a surface of the transmitting layer corresponding to the non-touch area.
In at least one embodiment of the present invention, the capacitive touch screen further includes a second adhesive layer, and the second adhesive layer is disposed on a surface of the sending layer on a side away from the first adhesive layer.
The invention has the beneficial effects that: according to the capacitive touch screen provided by the invention, the film layer with the insulating effect is arranged between the sending layer and the receiving layer, so that the signal interference between the sending layer and the receiving layer is reduced, the routing of the sending layer and the receiving layer in the frame area is overlapped in different planes, and the frame of the touch screen is further narrowed.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a capacitive touch screen according to the present invention;
fig. 2 is a schematic diagram of routing in a non-display area of a capacitive touch screen according to the present invention;
fig. 3 is a schematic structural diagram of a capacitive touch screen according to a first embodiment of the invention
Fig. 4 is a schematic structural diagram of a capacitive touch screen according to a second embodiment of the invention.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
The touch screen comprises a frame area, a touch screen body and a touch screen body, wherein the frame area is arranged on the touch screen body, the touch screen body is provided with a plurality of lines, and the lines are distributed in the frame area.
As shown in fig. 1 to 3, the present invention provides a capacitive touch screen 10, where a touch area AA and a non-touch area NA are defined on the touch screen 10, the non-touch area NA is disposed around the touch area AA, and the touch screen 10 includes a transmitting layer 12, a first adhesive layer 13, and a receiving layer 14.
The receiving layer 14 is disposed on the transmitting layer 12, and the adhesive layer 13 is disposed between the receiving layer 14 and the transmitting layer 12, for aligning and bonding the transmitting layer 12 and the receiving layer 14.
The touch screen 10 further includes a second adhesive layer 11, the second adhesive layer 11 is disposed on a surface of the sending layer 12 facing away from the first adhesive layer 13, and the second adhesive layer 11 is used to attach the touch screen 10 to other external structures, such as a panel with a display function.
The portion of the transmitting layer 12 located in the touch area AA is provided with a patterned driving electrode, the portion of the transmitting layer 12 located in the non-touch area NA is provided with a plurality of first wires 121, and the first wires 121 are used to electrically connect the driving electrode and an external electrical component.
The receiving layer 14 is provided with a patterned sensing electrode at a portion thereof located in the touch area AA, and the receiving layer 14 is provided with a plurality of second traces 141 at a portion thereof located in the non-touch area NA, wherein the second traces 141 are electrically connected to the sensing electrode and an external electrical component.
The touch screen 10 further includes a bonding pad 15, the bonding pad 15 is disposed in the non-touch area NA of the touch screen 10, the first trace 121 and the second trace 141 are both connected to the bonding pad 15, the bonding pad 15 is connected to the driving electrode on the transmitting layer 12 through the first trace 121, and the bonding pad 15 is connected to the sensing electrode on the receiving layer 14 through the second trace 141.
The non-touch area AA is located at a frame position at the edge of the touch screen 10, and in order to cooperate with a display panel having a display function and increase a display area, the frame is required to be reduced, but in order to prevent signal interference between wires, the wires at the frame in the prior art are generally laid flat, which results in an excessively wide frame.
A film layer for resisting signal interference is arranged between the sending layer 12 and the receiving layer 14, and the first trace 121 and the second trace 141 can be overlapped in the thickness direction of the touch screen in the non-touch area AA, so as to narrow the frame and be free from signal interference.
In order to distinguish the first trace 121 from the second trace 141, the dashed trace in fig. 3 represents the first trace 121, the solid trace represents the second trace 141, actually, traces on both the two film layers are solid traces, fig. 3 illustrates a partial overlapping area a of the first trace 121 and the second trace 141, which does not represent that the two traces are only overlapped at a, and may also be overlapped in other frame areas according to specific trace distribution.
The capacitive touch screen of the present invention is further described with reference to the following embodiments.
Example one
As shown in fig. 3, in the embodiment, an anti-interference material and an insulating material are disposed inside the first adhesive layer 13, the first adhesive layer 13 is an optical adhesive, and when the optical adhesive is prepared, the anti-interference material and the insulating material are doped into a solvent for preparing the optical adhesive, and after the preparation, the anti-interference material and the insulating material are attached between the transmitting layer 12 and the receiving layer 14, so as to perform the insulation and anti-interference functions. The touch screen 10 is also combined with a structure having a display function to form a touch display panel, and a film layer of the touch area AA is required to be a transparent material, so that the anti-interference material and the insulating material are both transparent materials.
Because the transmitting layer 12 and the receiving layer 14 are insulated and subjected to anti-interference treatment, the transmission layer 12 and the receiving layer 14 can be superposed in a non-display area NA (frame area), the signal interference between the overlapped wires is reduced, and the frame is narrowed.
Specifically, the first traces 121 on the sending layer 12 may be arranged on the same side of the non-display area NA, or may be arranged on different sides in a dispersed manner; the second traces 141 on the sending layer 14 may be arranged on the same side of the non-display area NA, or may be dispersedly arranged on different sides, and the orthographic projection portions of the first traces 121 and the second traces 141 on the capacitive touch screen 10 are overlapped, so that the traces on different planes are overlapped.
Example two
As shown in fig. 4, the capacitive touch screen 20 includes a second adhesive layer 21, a transmitting layer 22, a first adhesive layer 23, a receiving layer 24, and an anti-interference insulating layer 25.
The interference-free insulating layer 25 is disposed between the transmitting layer 22 and the first adhesive layer 23, and in this embodiment, the interference-free insulating layer 25 is disposed on a surface of the transmitting layer 25, which is located in the non-touch area, where the surface is a surface of the transmitting layer 25 close to the receiving layer 23.
In this embodiment, the anti-interference insulating layer 25 is disposed on the NA portion of the non-display area of the transmitting layer 22, and compared with the first embodiment in which the anti-interference insulating material is doped in the first adhesive layer 13, the effect of the first embodiment is the same, and the signal interference between the transmitting layer and the receiving layer can be reduced, so that the routing of the two film layers at the frame can realize the overlapping of different planes, and the frame can be narrowed.
The first adhesive layer 23 and the second adhesive layer 21 are both optical adhesives and have the function of adhering an upper film layer and a lower film layer.
Other structures are the same as those in the first embodiment, and are not described again here.
Has the advantages that: according to the capacitive touch screen provided by the invention, the film layer with the insulating effect is arranged between the sending layer and the receiving layer, so that the signal interference between the sending layer and the receiving layer is reduced, the routing of the sending layer and the receiving layer in the frame area is overlapped in different planes, and the frame of the touch screen is further narrowed.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (8)
1. A capacitive touch screen, which is defined with a touch area and a non-touch area surrounding the touch area, is characterized by comprising:
a plurality of first wires are arranged on the part of the sending layer corresponding to the non-touch area;
the receiving layer is arranged on the sending layer, and a plurality of second wires are arranged on the part, corresponding to the non-touch area, of the receiving layer;
a first adhesive layer disposed between the transmitting layer and the receiving layer; wherein the content of the first and second substances,
an anti-interference material and an insulating material are arranged in the first bonding layer;
the orthographic projection parts of the first wires and the second wires on the capacitive touch screen are overlapped, an anti-interference insulating layer is arranged between the sending layer and the first bonding layer, and the anti-interference insulating layer is arranged on the non-touch area of the sending layer.
2. The capacitive touch screen of claim 1, further comprising a binding pad located in a non-touch area of the capacitive touch screen.
3. The capacitive touch screen of claim 2, wherein a portion of the transmitting layer corresponding to the touch area is provided with a driving electrode.
4. The capacitive touch screen of claim 3, wherein the driving electrode is connected to the bonding pad through the first trace.
5. The capacitive touch screen of claim 2, wherein a portion of the receiving layer corresponding to the touch area is provided with an inductive electrode.
6. The capacitive touch screen of claim 5, wherein the sensing electrode is connected to the bonding pad through the second trace.
7. The capacitive touch screen of claim 1, wherein the first adhesive layer is an optical glue.
8. The capacitive touch screen of claim 1, further comprising a second adhesive layer disposed on a surface of the transmitting layer facing away from the first adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330063.8A CN109656427B (en) | 2018-11-09 | 2018-11-09 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330063.8A CN109656427B (en) | 2018-11-09 | 2018-11-09 | Capacitive touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109656427A CN109656427A (en) | 2019-04-19 |
| CN109656427B true CN109656427B (en) | 2022-02-22 |
Family
ID=66110795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330063.8A Active CN109656427B (en) | 2018-11-09 | 2018-11-09 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109656427B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111158534A (en) * | 2019-12-06 | 2020-05-15 | 深圳市善柔科技有限公司 | Routing method of narrow-frame touch screen |
| CN112306288A (en) * | 2020-09-24 | 2021-02-02 | 苏州思尔维纳米科技有限公司 | Touch device and processing method thereof |
| CN112162657B (en) * | 2020-10-12 | 2024-04-12 | 昆山龙腾光电股份有限公司 | Touch panel and touch device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376720U (en) * | 2013-04-15 | 2014-01-01 | 苏州斯迪克新材料科技股份有限公司 | Anti-interference capacitive touch screen panel |
| CN203630765U (en) * | 2013-12-11 | 2014-06-04 | 兴科电子(东莞)有限公司 | Projecting type capacitive touch screen |
| CN107390941A (en) * | 2017-08-17 | 2017-11-24 | 京东方科技集团股份有限公司 | Touch base plate, contact panel, display base plate, display panel and display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002151665A (en) * | 2000-11-14 | 2002-05-24 | Hitachi Ltd | Semiconductor integrated circuit device and manufacturing method therefor |
| TWM545300U (en) * | 2017-03-16 | 2017-07-11 | 創為精密材料股份有限公司 | Projective touch panel with structure for reducing signal interference from peripheral |
| CN108255359B (en) * | 2018-01-05 | 2021-07-27 | 业成科技（成都）有限公司 | Touch panel and manufacturing method thereof |
-
2018
- 2018-11-09 CN CN201811330063.8A patent/CN109656427B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376720U (en) * | 2013-04-15 | 2014-01-01 | 苏州斯迪克新材料科技股份有限公司 | Anti-interference capacitive touch screen panel |
| CN203630765U (en) * | 2013-12-11 | 2014-06-04 | 兴科电子(东莞)有限公司 | Projecting type capacitive touch screen |
| CN107390941A (en) * | 2017-08-17 | 2017-11-24 | 京东方科技集团股份有限公司 | Touch base plate, contact panel, display base plate, display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109656427A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10473964B2 (en) | Touch display panel and method for manufacturing the same | |
| CN109445649B (en) | Touch display panel and binding method | |
| JP5033078B2 (en) | Display device | |
| CN109656427B (en) | Capacitive touch screen | |
| CN106371669B (en) | Touch display panel and touch display device | |
| KR101975535B1 (en) | flexible touch screen panel | |
| US9454273B2 (en) | Touch panel with narrow border | |
| JP4546025B2 (en) | Signal line for touch panel display element and method for forming the same | |
| CN108469927B (en) | Touch display panel, driving method thereof and touch display device | |
| KR20120010828A (en) | Touch Screen Panel and Display Device Having the Same | |
| TWM461833U (en) | Touch panel | |
| CN105467646A (en) | Display panel and display device | |
| KR102237926B1 (en) | Touch window | |
| WO2014153816A1 (en) | Capacitive built-in touch screen and display device | |
| TWI550487B (en) | Touch panel module | |
| KR20180079446A (en) | A touch-sensitive conductive film, a touch-sensitive assembly, a touch-sensitive display screen, and an electronic device | |
| CN104699359A (en) | Self-adhesive flexible capacitive touch screen | |
| CN102662548B (en) | A kind of capacitance type touch-control panel | |
| CN108803951A (en) | A kind of touch screen and mobile terminal | |
| CN103631416A (en) | Touch screen and touch-controlled display device | |
| CN102566116A (en) | Capacitance type touch display panel | |
| CN214201990U (en) | Touch display screen and display device | |
| CN107577101B (en) | Electrophoretic display panel and manufacturing method thereof | |
| WO2016123911A1 (en) | Display apparatus and manufacturing method thereof | |
| CN204360348U (en) | Contact panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |