CN106339132A - Touch panel - Google Patents
Touch panel Download PDFInfo
- Publication number
- CN106339132A CN106339132A CN201610915444.7A CN201610915444A CN106339132A CN 106339132 A CN106339132 A CN 106339132A CN 201610915444 A CN201610915444 A CN 201610915444A CN 106339132 A CN106339132 A CN 106339132A
- Authority
- CN
- China
- Prior art keywords
- extension
- insulating barrier
- contact panel
- conductive layer
- connection gasket
- 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.)
- Pending
Links
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
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a touch panel. The touch panel comprises a substrate, a touch sensing layer and an electrostatic protective ring formed on the substrate, as well as a backup connecting pad, wherein the electrostatic protective ring comprises an extension part; and the backup connecting pad is superposed on the extension part, and is grounded through the electrostatic protective ring and the extension part. According to the touch panel, the structure of the electrostatic protective ring is changed, and the backup connecting pad is electrically connected with the extension part of the electrostatic protective ring and is grounded, so that the damage of a touch electrode and wiring caused by the fact that the electrostatic charge depositing on the backup connecting pad is attracted and conducted to a touch region can be effectively avoided.
Description
Technical field
The invention belongs to touch-control Display Technique, especially in regard to a kind of contact panel.
Background technology
Extensive application with electronic products such as smart mobile phone, panel computers and the development of touching display screen technology, will touch
Control display applications, on the electronic products such as smart mobile phone, panel computer, have become Current electronic to realize human-computer interaction function
The trend of production development.
The one of which capacitor touch-control display screen of present, it includes one and is for example coated with transparent conductors (example
Sensing electrode as being made up of tin indium oxide (ito)) glass insulator, and one electrically connect with sensing electrode touch
Control sensor integrated circuit (ic).Because human body is also electric conductor, the surface touching screen leads to the changing of electric field of screen
The change of the electric capacity in change, with sensing electrode.This capacitance change can be converted into a sensing signal.Then, touch-control sensing
Device ic can receive sensing signal and mark the position touching place.But or use process in the processing procedure of capacitance type touch-control panel
In often can produce electrostatic charge (electrostatic charge, esd) because of friction or other factorses, and excessive electrostatic charge
Would potentially result in the damage of touch-control sensing unit, thus reducing yield and the reliability of capacitance type touch-control panel.
Fig. 1 is the schematic diagram of existing capacitance type touch-control panel.As shown in figure 1, contact panel 10 includes substrate 11, substrate
It is provided with sensing electrode layer 12, sensing electrode layer 12 includes a plurality of the first horizontally arranged sensing electrodes 12a, a plurality of on 11
Second sensing electrode 12b arranged vertically and bridge layer 12c, bridge layer 12c is, for example, ito, and bridge layer 12c can be used for plural number
Bridge joint between bridge joint between individual first sensing electrode 12a, or a plurality of second sensing electrode 12b.First sensing electrode
12a and the second sensing electrode 12b are, for example, metal wire or ito.
With continued reference to Fig. 1, substrate 11 is outside a plurality of first sensing electrodes 12a with a plurality of second sensing electrodes 12b
Enclose setting electrostatic defending ring 13, electrostatic defending ring 13 preferably forms the annular of a closing, and is used for being accumulated in substrate 11
On electrostatic grounding, it is to avoid above-mentioned sensing electrode be subject to electrostatic damage.
The edge of substrate 11 is additionally provided with connection gasket 14, connection gasket 14 in order to fpc ((flexible
Printedcircuit golden finger) is engaged so that electrically conducting between substrate 11 and fpc.In general, with substrate 11
The other end of the fpc engaging needs to be engaged with the adapter of display module, and in order to adapt to the display mould of different model
Group, substrate 11 also will arrange standby connection gasket 15.
Fig. 2 is the generalized section along dotted line a of standby connection gasket 15 in Fig. 1.As shown in Figures 1 and 2, standby connection
Pad 15 is arranged at the outside of electrostatic defending ring 13, and standby connection gasket 15 includes the first insulating barrier 16 being formed on substrate 11, leads
Electric layer 17 and the second insulating barrier 18, the first insulating barrier 16 has the first opening 16a, and conductive layer 17 is filled in the first opening 16a
In, the second insulating barrier 18 is covered on conductive layer 17, and the second insulating barrier 18a has the second opening 18a and led with exposing part
Electric layer 17.
Additionally, existing contact panel is in order to be effectively improved printing opacity uniformity and visual effect, reduce adjacent electrode simultaneously
Between cross talk phenomenon (crosstalk), promote operational sensitivity, also can in the first sensing electrode 12a with second sense
Periphery setting floating electrode (not shown) of electrode 12b, when floating electrode is located at the periphery of electrostatic defending ring 13, and it is in not
During the state of ground connection, floating electrode and standby connection gasket 15 all easily attract electrostatic charge to move towards touch area, in turn result in
The cabling of the Touch Zone of substrate 11 or sensing electrode are by electrostatic damage.
Content of the invention
It is an object of the invention to provide a kind of new contact panel, for more effectively will build up electrostatic defending ring week
The electrostatic grounding enclosed, it is to avoid electrostatic conducts the damage causing to touch area.
The contact panel that the present invention provides, includes, substrate, is formed at pixel control layer and electrostatic defending ring on substrate, this
Contact panel also includes: this electrostatic defending ring also includes extension；Standby connection gasket, this standby connection gasket is stacked and placed on this extension
On, and this standby connection gasket passes through this electrostatic defending ring and this extension ground connection.
Alternatively, this extension is formed on this substrate, and this standby connection gasket includes the first insulating barrier and the first conductive layer,
This first insulating barrier is formed on this extension, and this first insulating barrier has the first opening to expose this extension, and this first is led
Electric layer is formed on this first insulating barrier, and this first conductive layer is electrically connected with from this first opening with this extension.
Alternatively, this standby connection gasket also includes the second insulating barrier, this second insulating barrier be formed at this first conductive layer it
On, and this second insulating barrier has the second opening to expose this first conductive layer of part.
Alternatively, this electrostatic defending ring is arranged around the Touch Zone of this pixel control layer, and this electrostatic defending ring is arranged at
The edge of this substrate.
Alternatively, this extension and a side of this electrostatic defending ring form the loop configuration closed.
Alternatively, this extension has latticed pattern.
Alternatively, this extension has breach, and this breach makes this extension and a side of this electrostatic defending ring be formed
Nonocclusive loop configuration.
Alternatively, the 3rd insulating barrier and the second conductive layer are also included, the 3rd insulating barrier is formed at this extension and this lacks
Mouthful on, the 3rd insulating barrier has through hole, and this extension exposes from this through hole, this second conductive layer with from this through hole with
This extension is electrically connected with.
Alternatively, also include the 4th insulating barrier, the 4th insulating barrier is formed on this second conductive layer.
Alternatively, the material of this extension is metal.
Compared with prior art, pass through in the present invention to change the structure of electrostatic defending ring, standby connection gasket and electrostatic are prevented
The extension of retaining ring is electrically connected with and is grounded, effectively prevent the electrostatic charge being accumulated on standby connection gasket be attracted and conduct to
In Touch Zone, the touch control electrode causing and the damage of cabling.
Brief description
Fig. 1 is the schematic diagram of existing capacitance type touch-control panel.
Fig. 2 be Fig. 1 in standby connection gasket along dotted line a generalized section.
Fig. 3 is the schematic diagram of the capacitance type touch-control panel of the first embodiment of the present invention.
Fig. 4 is the generalized section that in Fig. 3, standby connection gasket is stacked and placed on the extension of electrostatic defending ring along dotted line b.
Fig. 5 is the schematic diagram of the capacitance type touch-control panel of the second embodiment of the present invention.
Fig. 6 is the schematic diagram of the capacitance type touch-control panel of the third embodiment of the present invention.
Fig. 7 is connecting hole generalized section in Fig. 6.
Specific embodiment
For making, present disclosure is become apparent from and more accurately understand, will be described in detail with reference to the accompanying drawings now, say
Bright book accompanying drawing illustrates the example of embodiments of the invention, and wherein, identical label represents identical element.It is understood that
Ratio shown in Figure of description the ratio of the actual enforcement of non-invention, for the purpose of it is only schematically illustrate, and not according to former
Size is mapped.
Fig. 3 is the schematic diagram of the capacitance type touch control display panel of the first embodiment of the present invention.
As shown in figure 3, contact panel 20 includes substrate 21, pixel control layer 22 is arranged on substrate 21, electrostatic defending ring
23 around the Touch Zone of pixel control layer 22, and electrostatic defending ring 23 is arranged at the edge of substrate 21 and is electrically connected to ground connection electricity
Position, electrostatic defending ring 23 has extension 23a, and standby connection gasket 25 is stacked and placed on extension 23a so that standby connection gasket 25 leads to
Cross extension 23a ground connection.Wherein, the two ends of extension 23a are connected on a side of electrostatic defending ring 23 so that extending
Portion 23a forms, with a side of electrostatic defending ring 23, the loop configuration closed.
The contact panel 20 of the present embodiment is the contact panel comprising external labeling type and is integrated in display device (not shown)
Contact panel, this display device may be, for example, liquid crystal display (liquid crystal display, lcd), organic electroluminescence
Active display (organic electro luminescence display, oel), organic light emitting diode display
(organic light emissiondiode display, oled), light emitting diode indicator (light emission
Diode display, led), plasma display (plasma display panel, pdp), field emission display
(field emission display), nano carbon tube display, electric ink (e-ink) display.
Fig. 4 is that in Fig. 3, standby connection gasket is stacked and placed on extension along the generalized section of dotted line b.
As shown in figure 4, it is exhausted to be sequentially extension 23a, the first insulating barrier 26, the first conductive layer 27 and second on substrate 21
Edge layer 28, wherein, the first insulating barrier 26 is covered on the surface of extension 23a, and the first insulating barrier has multiple first openings
26a, extension 23a can expose from the first opening 26a；First conductive layer 27 is formed on the first insulating barrier 26, and first is conductive
Layer 27 passes through the first opening 26a and extension 23a and is electrically connected with；Second insulating barrier 28 is formed on the first conductive layer 27, the
Two insulating barriers 28 have a plurality of second opening 28a, and the first conductive layer 27 exposes from a plurality of second opening 28a.
In the present embodiment, electrostatic defending ring 23 and extension 23a are, for example, metal, and on standby connection gasket 25, accumulation is quiet
Electric charge can be grounded via extension 23a and electrostatic defending ring 23, thus protecting other holding wires and sensing electrode in Touch Zone
By electrostatic damage.
With continued reference to Fig. 3, pixel control layer 22 also includes multiple first sensing electrodes 22a, multiple second sensing electrode 22b
And multiple bridge part 22c, multiple bridge part 22c are used for the bridge joint between multiple first sensing electrodes 22a, or for multiple
Bridge joint between second sensing electrode 22b.First sensing electrode 22a is with the first axial equally spacedly arrangement and in parallel with each other
Arrangement, the second sensing electrode 22b is axially equally spacedly to arrange and be arranged parallel to each other with second.First is axially perpendicular to
Second axially, and the first sensing electrode 22a and the second sensing electrode 22b are to be crisscross arranged in matrix form.In each first axle
The first sensing electrode 22a upwards is to be connected with each other logical, and the second sensing electrode 22b in every one second axial direction is each other not
It is connected.In the present embodiment, as shown in figure 3, by multiple bridge part 22c by multiple second sensing electrodes in the second axial direction
Bridge joint between 22b, to be electrically connected.Bridge part 22c can be metal material (such as gold thread or silver wire) or wire mark elargol.
Peripheral wire 22d is connected to multiple first sensing electrodes 22a, multiple second sensing electrode 22b and fpc connection gasket 24
Between, in order to transmit sensing signal.Peripheral wire 22d preferably with made by the material of low resistance, such as gold thread or silver wire.
Fpc connection gasket 24 be sensing signal obtained by transmitting by sensing electrode to follow-up signal process circuit (not illustrating), this
Signal processing circuit can be formed on flexible printed circuit board (or band).Wherein, flexible printed circuit board is to utilize conducting resinl
To be engaged on fpc connection gasket 24, conducting resinl for example, anisotropic conductive (anisotropic conductive film,
acf).
In aforesaid substrate 21, between sensing electrode and peripheral wire 22d, equivalent capacity can be formed, therefore when user
When finger or conductor touch or gently slip over the surface of substrate 21, signal processing circuit can pass through the change of electric capacity, to judge conductor
Or the touch location of user finger.
In the present invention, standby connection gasket 25 is for fpc connection gasket 24.Specifically, contact panel 20
Need to electrically connect between middle pixel control layer 22 and display floater, and enter the transmission of horizontal electrical signal, be connected with pixel control layer 22
One end of flexible printed circuit board electrically connect with the fpc connection gasket 24 on substrate 21, the other end of flexible PCB then needs
It is attached with display floater by adapter.Therefore, in order to adapt to different display floaters it is often necessary in contact panel
Standby fpc connection gasket is arranged on substrate, i.e. standby connection gasket 25 of the present invention, the setting of standby connection gasket 25, can keep away
When exempting to run into different display floaters, need again the fpc connection gasket on contact panel is laid out causing with the prolongation of processing procedure,
Therefore manufacturing cost can be reduced.
Fig. 5 is the schematic diagram of the contact panel of second embodiment of the invention.As shown in figure 5, contact panel 30 and touch surface
The differing only in of plate 20, the extension 33a of electrostatic defending ring 33 is latticed patterning.Standby connection gasket 25 is stacked and placed on
On extension 33a, and it is accumulated in the electrostatic charge on standby connection gasket 25, can also be by extension 33a and electrostatic defending ring 33
And be grounded, prevent electrostatic charge to be attracted by the electric charge on standby connection gasket 25 and conduct to touch area, cause electrostatic to damage
Wound.
Fig. 6 is the schematic diagram of the contact panel of third embodiment of the invention, and Fig. 7 is the extension of electrostatic defending ring in Fig. 6
The profile of upper connecting hole.As shown in fig. 6, the differing only in of contact panel 40 and contact panel 20, electrostatic defending ring 43
It is provided with connecting hole 44 above extension 43a.
As shown in fig. 7, extension 43a is formed on substrate 21, and extension 43a has breach 43b, and breach 43b makes
Form a non-enclosed loop configuration between extension 43a and a side of electrostatic defending ring 43.3rd insulating barrier 46 shape
Become on extension 43a and cover breach 43b, and the 3rd insulating barrier 46 has connecting hole 44 (connecting hole 44 shown in Fig. 7 is
Two, but be not limited) to expose portion extension 43a；Second conductive layer 45 is formed on the 3rd insulating barrier 46, and
Second conductive layer 45 connects extension 43a respectively by connecting hole 44；4th insulating barrier 47 is formed on the second conductive layer 45,
For stopping the impact to the second conductive layer 45 and extension 43a for the environment.Second conductive layer 45 preferably ito.4th insulating barrier
47 is, for example, Merlon (polycarbonate, pc), polyester (polythylene terephthalate, pet), poly- methyl
Acrylic acid methyl ester. (polymethylmethacrylate, pmma) or cyclic olefin copolymer (cyclic olefin
copolymer).
In sum, pass through in the present invention to change the structure of electrostatic defending ring, by standby connection gasket and electrostatic defending ring
Extension is electrically connected with and is grounded, and effectively prevent the electrostatic charge being accumulated on standby connection gasket and is attracted and conducts to Touch Zone
In, the touch control electrode causing and the damage of cabling.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and its essence, ripe
Know those skilled in the art to make various corresponding changes according to the present invention and deform, but these corresponding changes and deformation
The protection domain of appended claims of the invention all should be belonged to.
Claims (10)
1. a kind of contact panel, including, substrate, is formed at pixel control layer and electrostatic defending ring on substrate it is characterised in that should
Contact panel also includes:
This electrostatic defending ring also includes extension；
Standby connection gasket, this standby connection gasket is stacked and placed on this extension, and this standby connection gasket pass through this electrostatic defending ring and
This extension is grounded.
2. contact panel as claimed in claim 1 is it is characterised in that this extension is formed on this substrate, this standby connection gasket
Including the first insulating barrier and the first conductive layer, this first insulating barrier is formed on this extension, and this first insulating barrier has first
To expose this extension, this first conductive layer is formed on this first insulating barrier opening, and this first conductive layer and this extension
It is electrically connected with from this first opening.
3., it is characterised in that this standby connection gasket also includes the second insulating barrier, this for contact panel as claimed in claim 2
Two insulating barriers are formed on this first conductive layer, and this second insulating barrier has the second opening this first is led to expose part
Electric layer.
4. contact panel as claimed in claim 1 it is characterised in that this electrostatic defending ring around this pixel control layer touch-control
Area is arranged, and this electrostatic defending ring is arranged at the edge of this substrate.
5. contact panel as claimed in claim 1 is it is characterised in that this extension is formed with a side of this electrostatic defending ring
The loop configuration of closing.
6. contact panel as claimed in claim 1 is it is characterised in that this extension has latticed pattern.
7. it is characterised in that this extension has breach, this breach makes this extension to contact panel as claimed in claim 1
Portion forms nonocclusive loop configuration with a side of this electrostatic defending ring.
8., it is characterised in that also including the 3rd insulating barrier and the second conductive layer, this for contact panel as claimed in claim 7
Three insulating barriers are formed on this extension and this breach, and the 3rd insulating barrier has through hole, and this extension is sudden and violent from this through hole
Expose, this second conductive layer is electrically connected with this extension with from this through hole.
9. it is characterised in that also including the 4th insulating barrier, the 4th insulating barrier is formed contact panel as claimed in claim 8
On this second conductive layer.
10. contact panel as claimed in claim 1 is it is characterised in that the material of this extension is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915444.7A CN106339132A (en) | 2016-10-20 | 2016-10-20 | Touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915444.7A CN106339132A (en) | 2016-10-20 | 2016-10-20 | Touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106339132A true CN106339132A (en) | 2017-01-18 |
Family
ID=57840072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915444.7A Pending CN106339132A (en) | 2016-10-20 | 2016-10-20 | Touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106339132A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340925A (en) * | 2017-07-14 | 2017-11-10 | 业成科技（成都）有限公司 | Touch module |
| CN107885388A (en) * | 2017-08-25 | 2018-04-06 | 友达光电股份有限公司 | Panel with electrostatic protection structure |
| TWI631498B (en) * | 2017-08-07 | 2018-08-01 | Interface Technology (Chengdu) Co., Ltd. | Touch panel |
| CN109375820A (en) * | 2018-12-06 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | Touch device |
| CN114860098A (en) * | 2021-02-04 | 2022-08-05 | 宸美（厦门）光电有限公司 | Three-dimensional sensing device and manufacturing method thereof |
-
2016
- 2016-10-20 CN CN201610915444.7A patent/CN106339132A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340925A (en) * | 2017-07-14 | 2017-11-10 | 业成科技（成都）有限公司 | Touch module |
| TWI631498B (en) * | 2017-08-07 | 2018-08-01 | Interface Technology (Chengdu) Co., Ltd. | Touch panel |
| CN107885388A (en) * | 2017-08-25 | 2018-04-06 | 友达光电股份有限公司 | Panel with electrostatic protection structure |
| CN109375820A (en) * | 2018-12-06 | 2019-02-22 | 武汉华星光电半导体显示技术有限公司 | Touch device |
| CN109375820B (en) * | 2018-12-06 | 2020-06-16 | 武汉华星光电半导体显示技术有限公司 | Touch control device |
| US10852884B2 (en) | 2018-12-06 | 2020-12-01 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Touch device |
| CN114860098A (en) * | 2021-02-04 | 2022-08-05 | 宸美（厦门）光电有限公司 | Three-dimensional sensing device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170118 |
|
| WD01 | Invention patent application deemed withdrawn after publication |