CN105867709B - Bridging structure for touch panel and touch panel - Google Patents
Bridging structure for touch panel and touch panel Download PDFInfo
- Publication number
- CN105867709B CN105867709B CN201610211361.XA CN201610211361A CN105867709B CN 105867709 B CN105867709 B CN 105867709B CN 201610211361 A CN201610211361 A CN 201610211361A CN 105867709 B CN105867709 B CN 105867709B
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- China
- Prior art keywords
- touch panel
- bridging structure
- sensing
- electric conductor
- sensing electrode
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Classifications
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- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
Abstract
The present invention relates to display technical field of touch control, and more particularly to bridging structure for touch panel, bridging structure for touch panel includes: at least two electric conductors；Conductive layer, conductive layer include multiple second sensing electrodes；Every one second sensing electrode includes several second sensing cell elements, and two second adjacent sensing cell elements are connected by an electric conductor；Being conductively connected section has at least two bonding pads, and the width of bonding pad in a second direction is less than the width of remaining region of conductive connection section in a second direction.Touch panel includes above-mentioned bridging structure for touch panel, further includes protective layer and substrate.Above-mentioned bridging structure for touch panel and touch panel, by will be conductively connected section bonding pad width design be it is small compared with remaining peak width, improve the sensitivity of the second sensing electrode, and then improve the reliability of product.
Description
Technical field
The present invention relates to display technical field of touch control, more particularly to bridging structure for touch panel and touch panel.
Background technique
Touch panel is the touch control device being arranged on a display screen.When the object that the finger or band of the mankind have conductivity
Capacitance when contact on screen correspondingly changes, and touch panel can detect the change point of capacitance.Due to touch panel
The input unit for being used to operate display device for being connected to display device, such as keyboard and mouse, therefore touch surface can be replaced
The utilization rate of plate is greatly improved, and whole market accounting is also very big.Touch panel include many kinds, have resistance-type,
Condenser type, infrared type, optical sensing type etc..For capacitive touch screen, it is divided into several kinds again, but overall development trend is just
It is that the design of product develops towards lightening and narrow frameization.
With the development of technology, touch panel is from initial GG (glass and glass) structure to follow-on GF
(glass and film) structure, then OGS (the one glass solution) structure being greatly reduced to thickness, then compare till now
Common table embedded (On-Cell) structure of higher-end --- directly touch function is made on display screen front cover glass sheet,
Common bridging structure.On-Cell bridging structure needs to do the influence greatly to brightness, appearance etc. in view of bridge point, therefore often needs
Bridge point is done small, but bridge point does small and can have a certain impact to the performance of display screen, so needing to consider again to touching
Control pattern (Pattern) is designed.
Summary of the invention
Based on this, it is necessary to aiming at the problem that how to improve product reliability, provide a kind of bridging structure for touch panel and
Touch panel.
A kind of bridging structure for touch panel, for providing bridge formation function for touch panel, the bridging structure for touch panel packet
It includes: at least two electric conductors；
Conductive layer, the conductive layer include that multiple first sensing electrodes of mutually insulated setting and multiple second sense electricity
Pole；Each first sensing electrode has several first sensing cell elements and several conductive connection sections, adjacent in a first direction
The two first sensing cell elements connected by the conductives connection section；Each second sensing electrode includes several second
Cell element is sensed, the second sensing cell element of adjacent two passes through an electric conductor connection；The conductive connection section has at least
Two bonding pads, each electric conductor be correspondingly arranged on a bonding pad, and the bonding pad is in a second direction
Width is less than the width of described remaining region for being conductively connected section in a second direction.
A kind of touch panel further includes protective layer and substrate, the protection including above-mentioned bridging structure for touch panel
Layer, the bridging structure for touch panel and the substrate are sequentially stacked.
Above-mentioned bridging structure for touch panel, the width design by the bonding pad that will be conductively connected section are wide compared with remaining region
It spends small, and at least two electric conductors is set to connect adjacent two second sensings cell elements, so may make the volume in electric conductor
Adjacent two second can be kept to sense the ride comfort that charge between cell elements flows when smaller, while also improving the second sensing electrode
Sensitivity, and then improve the reliability of product.
Detailed description of the invention
Fig. 1 is the patterning schematic diagram of one embodiment of the invention bridging structure for touch panel；
Fig. 2 is the schematic diagram of a unit pattern in one embodiment of the invention bridging structure for touch panel pattern；
Fig. 3 is the partial enlargement diagram of the part embodiment illustrated in fig. 2 Q；
Fig. 4 is the patterning schematic diagram of one embodiment of the invention bridging structure for touch panel；
Fig. 5 is the structural schematic diagram of one embodiment of the invention touch panel；
Fig. 6 is the structural schematic diagram of another embodiment of the present invention touch panel.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
Referring to Fig. 1, it is the patterning schematic diagram of one embodiment of the invention bridging structure for touch panel, i.e. the figure is
Whole Pattern schematic diagram after single Pitch array of On-Cell product bridging structure of the invention.
Bridging structure for touch panel is used to provide bridge formation function for touch panel.The bridging structure for touch panel 10 includes extremely
Few two electric conductors 110 and conductive layer 120.
Conductive layer 120 includes multiple first sensing electrodes 121 and multiple second sensing electrodes 122 of mutually insulated setting.
Every one first sensing electrode 121 has several first sensing cell elements 1211 and several conductive connection sections 1212.In a first direction
Two first adjacent sensing cell elements 1211 are conductively connected section 1212 by one and connect.
Every one second sensing electrode 122 includes several second sensing cell elements 1221.Two second adjacent sensing cell elements 1221
It is connected by an electric conductor 110.
Referring to Fig. 2, its showing for a unit pattern in one embodiment of the invention bridging structure for touch panel pattern
It is intended to, i.e., the figure is a Pitch schematic diagram in On-Cell product bridging structure Pattern of the invention.
For example, being conductively connected section 1212 has at least two bonding pads 1213, each electric conductor 110 is correspondingly arranged in a company
It connects in area 1213, also, the width of bonding pad 1213 in a second direction is less than remaining region for being conductively connected section 1212 the
Width on two directions.In the present embodiment, being conductively connected the tool of section 1212, there are two bonding pads 1213.
Width design by the bonding pad 1213 that will be conductively connected section 1212 is small compared with remaining peak width, and is arranged extremely
Few two electric conductors 110 so may make the small volume in electric conductor 110 to connect two second adjacent sensing cell elements 1221
When adjacent two second can be kept to sense the ride comfort of 1221 charges of cell element flowing, while also improving the second sensing electrode
122 sensitivity, and then improve the reliability of product.
In one embodiment, insulating materials is set between the first sensing electrode 121 and the second sensing electrode 122, so that two
Mutually insulated is arranged between person.
It should be noted that Pitch refers to: a unit pattern of the first sensing electrode and the second sensing electrode.
Pattern refers to: referring to the pattern of touch screen sensing electrode, that is, the first thoughts and feelings electrode mentioned above and the second sensing electricity
Global pattern after the array of pole.On-Cell: referring to touch screen being embedded into method between the front shroud of display screen and polaroid,
Touch function is done on a display panel.
In one embodiment, there is an angle between first direction and second direction.Specific in the present embodiment, such as Fig. 2 institute
Show, first direction is Y-direction, and second direction is X-direction.For example, the angle between first direction and second direction is 90 °；Again
Such as, the angle between first direction and second direction is 45 °.
In one embodiment, at least two electric conductors 110 are located on different straight line in a first direction；For another example, exist
Each bonding pad 1213 is located on different straight line on first direction, so that each electric conductor 110 does not weigh on same vision straight line
Folded, the display for avoiding product is bad, improves the reliability of product.
Referring to Fig. 4, it is the patterning schematic diagram of one embodiment of the invention bridging structure for touch panel, which can also
To be interpreted as the schematic cross-sectional view of A-A shown in Fig. 3, bridging structure for touch panel further includes insulating layer 140.Insulating layer 140
For each first sensing electrode 121 and each second sensing electrode 122 to be isolated.
In conjunction with Fig. 3, for example, the electric conductor 110 has pattern body 111 and both ends 112, each electric conductor 110
Pattern body 111 forms a metal patterns layer 130.It should be pointed out that electric conductor 110 is metal patterns, that is, condenser type
Described bridge in bridging structure in touch screen common type.Using the present invention and its each embodiment, electric conductor can also be reduced
Dosage.
Insulating layer 140 offers contact hole 141, and two second adjacent sensing cell elements 1221 are connected by an electric conductor 110.
For example, every one end passes through one second sensing of an at least contact hole 141 connection as shown in figure 5, electric conductor 110 has both ends
Cell element 1221；And contact hole 141 is arranged adjacent to bonding pad 1213.For another example, as shown in fig. 6, the both ends of electric conductor 110 position
It sets, every one second sensing cell element 1221 passes through contact hole 141 and accordingly connect with the end of electric conductor 110.
As shown in Figure 4, metal patterns layer and sensing electrode layer are connected by contact hole, and such bridge can incite somebody to action
Two separated the second adjacent sensing cell elements connect one by one in second sensing electrode.
To improve contact performance, each electric conductor 110 is covered in a second direction in the second adjacent sensing electrode 122
Contact hole 141.In this way, the electric conductor of covering contact hole may make the both ends of electric conductor to come into full contact with the second sensing electrode,
Improve the reliability of contact.
For example, the quantity of contact hole 141 be it is multiple, multiple contact holes 141 in one second sensing electrode 122 are in a row to be set
It sets.In the present embodiment, the quantity of contact hole 141 is two.
Referring to Fig. 1, for example, conductive layer 120 is made of transparent conductive material, transparent conductive material includes indium
Tin-oxide.That is, the first sensing cell element in the first sensing electrode and the second sensing cell element in the second sensing electrode
It is formed in same layer with identical material, such as is formed with transparent conductive material.Moreover, second sensing as can be seen from Figure
The second sensing cell element in electrode is linked together by metal patterns and contact hole 141.
It should be noted that pattern of the present invention belongs to the bridging structure of capacitive touch screen, including two induction electrodes point
It is not TX and RX, is changed by detecting the capacitance when the isoelectric membrane that the finger of the mankind or band have conductivity on screen
Point, and then judge the touch location of finger.Entire screen is divided into multiple sensor blocks by the present invention, even if therefore having multiple touchings on screen
Touch a little is also that can sense.
In addition, TX refers to the emission electrode of touch screen, refer to one of them in two induction electrodes.RX refers to touch screen
Receive electrode, refers to one of them in two induction electrodes.
For example, electric conductor 110 is made of high conductivity material, high conductivity material includes copper, silver, molybdenum, aluminium or indium tin oxygen
Compound.It should be noted that two metal patterns can be horizontal positioned in bridging structure, can also place at any angle,
But two metal patterns can be placed in parallel not in the same horizontal direction and the same vertical direction, can also any direction put
It sets.
For example, in each first sensing electrode 121, each first sensing cell element 1211 and each conductive connection
Section 1212 is wholely set.It should be noted that the purpose for being conductively connected section 1212 is that make electric conductor (bridge) small, that is, conductive
Region where body is done narrow, so as to maintain lesser connection distance in two second adjacent sensing cell elements, improves electric charge stream
Dynamic flatness.
In the present embodiment, it is conductively connected the section that section has similar parallelogram, in other embodiments, the section
Shape may be the shapes such as similar serpentine, diamond shape, as long as meeting electric conductor (bridge) is two second small, adjacent sensing born of the same parents
Lesser connection distance is maintained in member.
Referring to Fig. 3, it can more obviously find out that the connection of the second sensing cell element of the second sensing electrode is to lean on by Fig. 3
Two metal patterns, and there are two contact holes 141 to connect with the contact position of the second sensing cell element for every metal patterns,
The contact hole 141 may be one.Metal patterns are also known as bridge, and two bridges are not in same level and vertical direction as shown in Figure 3
On, but two bridges can be put with any angle.
In this way, charge can be made smoothly to be flowed into from one second sensing cell element using having low-impedance metal patterns
Charge between adjacent another second sensing cell element, that is, adjacent cell element can smoothly flow, so as to improve the second sensing electrode
Sensitivity.
The purpose of the present invention is overcome it is mentioned above in the prior art the shortcomings that, develop it is a kind of by bridge point do it is small and
A kind of bridging structure Pattern that product reliability can be improved, improve the suitable On-Cell products such as product appearance.The On-Cell
Bridging structure figure has preferable appearance and reliability, and has preferable practical value.
It is noted that the invention further relates to a kind of touch panels.The touch panel includes above-mentioned touch surface grillage
Bridge structure, and further include protective layer 150 and substrate 160, protective layer 150, bridging structure for touch panel and substrate 160 are successively folded
It sets.
As shown in figure 5, its be an embodiment touch panel structural schematic diagram, protective layer 150, metal patterns layer 130, absolutely
Edge layer 140, conductive layer 120 and substrate 160 are sequentially stacked to form touch panel.
As shown in fig. 6, it is the structural schematic diagram of another embodiment touch panel, protective layer 150, conductive layer 120, insulation
Layer 140, metal patterns layer 130 and substrate 160 are sequentially stacked to form touch panel.
For example, baseplate material is formed by the material with insulating property (properties), including glass, PMMA, synthetic resin, flexible thin film
Deng.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of bridging structure for touch panel, for providing bridge formation function for touch panel, which is characterized in that the touch surface grillage
Bridge structure includes:
At least two electric conductors；
Conductive layer, the conductive layer include multiple first sensing electrodes and multiple second sensing electrodes of mutually insulated setting；Often
One first sensing electrode has several first sensing cell elements and several conductive connection sections, in a first direction two adjacent institutes
It states the first sensing cell element and passes through a conductive connection section connection；Each second sensing electrode includes several second sensing born of the same parents
Member, the second sensing cell element of adjacent two pass through at least two electric conductor connections；The conductive connection section has at least
Two bonding pads, each electric conductor be correspondingly arranged on a bonding pad, and the bonding pad is in a second direction
Width is less than the width of described remaining region for being conductively connected section in a second direction.
2. bridging structure for touch panel according to claim 1, which is characterized in that the first direction and the second party
There is an angle between.
3. bridging structure for touch panel according to claim 2, which is characterized in that the angle is 90 °.
4. bridging structure for touch panel according to claim 1, which is characterized in that each company in said first direction
Area is met to be located on different straight line.
5. bridging structure for touch panel according to claim 1, which is characterized in that there are two connect the conductive connection section tool
Meet area.
6. bridging structure for touch panel according to claim 1, which is characterized in that the conductive layer is by transparent conduction material
Material is made, and the transparent conductive material includes indium tin oxide.
7. bridging structure for touch panel according to claim 1, which is characterized in that the electric conductor is by high conductivity material
It is made, the high conductivity material includes copper, silver, molybdenum, aluminium or indium tin oxide.
8. bridging structure for touch panel according to claim 1, which is characterized in that it further include insulating layer, the insulating layer
It is isolated each first sensing electrode and each second sensing electrode, and the insulating layer offers contact hole, adjacent two
The second sensing cell element has both ends by an electric conductor connection, the electric conductor, and each end passes through extremely
The a few contact hole connection 1 second sensing cell element；And the contact hole is arranged adjacent to the bonding pad.
9. bridging structure for touch panel according to claim 8, which is characterized in that the quantity of the contact hole be it is multiple,
Corresponding multiple contact holes are arranged at two rows above each second sensing electrode.
10. a kind of touch panel, which is characterized in that build bridge and tie including touch panel as claimed in any one of claims 1 to 8
Structure, further includes protective layer and substrate, and the protective layer, the bridging structure for touch panel and the substrate are sequentially stacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211361.XA CN105867709B (en) | 2016-04-05 | 2016-04-05 | Bridging structure for touch panel and touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211361.XA CN105867709B (en) | 2016-04-05 | 2016-04-05 | Bridging structure for touch panel and touch panel |
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| CN105867709A CN105867709A (en) | 2016-08-17 |
| CN105867709B true CN105867709B (en) | 2019-03-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107291300B (en) * | 2017-07-12 | 2020-03-31 | 业成科技（成都）有限公司 | Touch control induction structure of display |
| CN108710718B (en) * | 2018-03-30 | 2022-05-17 | 国网安徽省电力有限公司 | Mountain fire spreading simulation method and system based on cellular automaton |
| CN112462962B (en) * | 2019-09-06 | 2023-01-06 | 华为技术有限公司 | Touch sensor, touch display screen and electronic equipment |
| CN111045552A (en) * | 2019-12-31 | 2020-04-21 | 信利（惠州）智能显示有限公司 | Touch panel and touch display screen |
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| CN102200858A (en) * | 2011-04-29 | 2011-09-28 | 深圳南玻伟光导电膜有限公司 | Transparent conducting layer structure of touch screen |
| CN102830867A (en) * | 2011-06-14 | 2012-12-19 | 瀚宇彩晶股份有限公司 | Touch control display device |
| TW201533618A (en) * | 2014-02-19 | 2015-09-01 | Au Optronics Corp | Touch panel, touch display panel and touch signal sensing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101908492B1 (en) * | 2011-04-12 | 2018-10-17 | 엘지디스플레이 주식회사 | Display device associated with touch panel |
| TWI452508B (en) * | 2011-05-27 | 2014-09-11 | Novatek Microelectronics Corp | Layout structure of capacitive touch panel and manufacturing method thereof |
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2016
- 2016-04-05 CN CN201610211361.XA patent/CN105867709B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200858A (en) * | 2011-04-29 | 2011-09-28 | 深圳南玻伟光导电膜有限公司 | Transparent conducting layer structure of touch screen |
| CN102830867A (en) * | 2011-06-14 | 2012-12-19 | 瀚宇彩晶股份有限公司 | Touch control display device |
| TW201533618A (en) * | 2014-02-19 | 2015-09-01 | Au Optronics Corp | Touch panel, touch display panel and touch signal sensing method |
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