CN203025669U - Bridging lead wire sensor structure - Google Patents
Bridging lead wire sensor structure Download PDFInfo
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- CN203025669U CN203025669U CN 201220677030 CN201220677030U CN203025669U CN 203025669 U CN203025669 U CN 203025669U CN 201220677030 CN201220677030 CN 201220677030 CN 201220677030 U CN201220677030 U CN 201220677030U CN 203025669 U CN203025669 U CN 203025669U
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Abstract
The utility model discloses a bridging lead wire sensor structure which is characterized in that an insulated transparent base plate is provided, a sensing electrode is formed by etching on one surface of the base plate, an ITO lead wire extends out of the surface of the base plate; the tail end of the lead wire is provided with contacts and bridging points for bridging connection; then a transparent insulation layer is continuously formed on the surface of the base plate and surrounds all the bridging points in a plane, through holes are reserved at the bridging points; finally a bridging layer is formed on the base plate with the processed insulation layer, the bridging layer is placed on the surface of the insulation layer or includes the surface of the base plate, the corresponding bridging points are communicated through the through holes, and the a bridging lead wire sensor is obtained. Due to a bridging wire, the contacts of the single-layer multi-point touch screen sensor can be distributed in a concentrating mode, blocking and crossing because of the lead wire cannot happen, and accordingly the width and the wire distance of the contacts are expanded, binding difficulty of the contacts and a FPC is lowered, and yield is improved.
Description
Technical field
The utility model relates to a kind of touch screen sensor, specifically a kind of sensor that applies to individual layer multi-point touch screen.
Background technology
Inductance capacitance formula touch screen is a kind of electrical equipment input equipment, and the direct touch gestures of human body is transformed to input signal, has advantages of to be quick on the draw, good reliability, to be easy to volume production.And the performance advantage of its multi-point touch is brought into play on such as smart mobile phone, panel computer, digital equipment at portable equipment, finds broad application at present and has tremendous development.
This class inductance capacitance formula touch screen uses transparent conducting glass (ITO) as the main material of its touch sensing.It is special induction electrode that ITO adopts the technological formings such as printing, etching, is distributed in the human body touch area of display screen, by monitoring the capacitance variations that causes due to the human body touch-control between its electrode, catches gesture information and is converted into input signal.Be covered in the viewing area of display screen due to touch sensing itself, its light transmission requires very high, so, sensor thickness be one than more sensitive parameter; Consider on the other hand weight, the volume requirement of portable equipment, its thickness and material, process costs also can be restricted.Consider based on these, present touch sensing can use single layer designs, namely all ITO electrodes and between lead-in wire all print the same face that takes shape in corresponding substrate, so, the level of whole sensor tails off, the thickness attenuation.
Sensor itself has above-mentioned ITO induction electrode array, and these electrod-arrays need to be communicated with its control IC.So, usually be all to use the FPC(flexible PCB) as connecting lead wire, with sensor " binding ", complete both fixing and be connected, make sensor therefore possess the electrical connection interface, can properly be connected with control IC and PCB circuit board thereof, as the contact 21 in Fig. 1, the vertical regional D that it distributes need to coordinate a FPC.exactly because need to realize multi-point touch on the sensor of individual layer ITO, its ITO induction electrode array need to be divided into many strip electrodes of longitudinal extension, such as common Y electrode 12 shown in Figure 1 and the X electrode 11 that distributes one by one along this Y electrode 12, wherein X electrode 11 quantity are more, and often need to be communicated with the X electrode 11 of delegation---thus, lead-in wire 20 on whole sensor between the ITO induction electrode must increase, consumed suitable sensor area, , especially, these lead-in wires 20 need to be walked around the contact (PIN) that is connected with the FPC binding, to such an extent as to the area of these contacts is limited, width is very thin, thereby bring negative effect for difficulty and the yield of moulding contact and contraposition binding FPC, particularly evident when producing in enormous quantities, see the E zone in Fig. 1, the D zone at this zone and 21 places, contact has cross section, therefore, contact 21 its width in D zone are subject to inevitable extruding inevitably.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of bridging lead-in wire sensor of individual layer multi-point touch screen, with the sensor that overcomes existing individual layer multi-point touch screen and the problem that FPC contraposition binding difficulty is high and yield is low.
The technical scheme of the utility model technical solution problem is:
A kind of bridging lead-in wire sensor of individual layer multi-point touch screen comprises:
One substrate, the insulation transparent material;
The ITO induction electrode is attached to the one side of described substrate, has the electrode pattern that can respond to multiple spot human body touch-control; This induction electrode has the ITO lead-in wire that extends; This lead-in wire comprises two classes, a class end be shaped to for the contact of PFC binding, another kind of end is shaped to the bridging point that connects for putting up a bridge;
Insulation course, insulating material is attached on this substrate this ITO induction electrode place one side, and the periphery of described bridging point has through hole in this bridging point position; And
The layer of putting up a bridge is attached to insulation course or comprises on described substrate the one side at this ITO induction electrode place, has by described through hole to be communicated with bridging line between should putting up a bridge a little mutually.
The improvement of this technical scheme can have:
In preferred embodiment, this insulation course comprises the insulating coating of printing or the PET film of attaching.
In preferred embodiment, this induction electrode comprises two classes, and a class is the Y electrode along this substrate longitudinal extension, and another kind of is X electrode along this Y distribution of electrodes; Wherein, be distributed in a side of the periphery of this induction electrode region in described set of contacts; The described lead-in wire that is communicated with this Y electrode is connected described contact.
In preferred embodiment, described bridging point and described insulation course all are positioned at this peripheral opposite side opposite with described contact in induction electrode region; Wherein, near the X electrode of described contact one side, its described lead-in wire that extends connects described contact, and all the other are near this X electrode of described bridging point, and its lead terminal is described bridging point.
In preferred embodiment, a described bridging point part is positioned at a side at this place, contact, and another part is positioned at this peripheral opposite side opposite with described contact in induction electrode region;
Wherein, near the X electrode of described contact one side, the described lead-in wire part that it extends connects described contact, and another part end is described bridging point; Remaining this X electrode, its end are described bridging point;
Described insulation course is divided into two parts according to the both sides at described bridging point place.
In preferred embodiment, the electrode pattern of described X electrode and Y electrode comprises the form that plane comb type coordinates, and the tooth of this comb type is rectangle.
In preferred embodiment, the described layer of putting up a bridge adopts the structure of silver slurry typography moulding.
In preferred embodiment, described substrate comprises PET, PC or glass.
The beneficial effect that technical solutions of the utility model are brought has:
1. the bridging line has completed with being connected the function that connects with respect to the pattern of ITO induction electrode on other plane, the contact of individual layer multi-point touch screen inductor can be distributed in the concentrated area, and the phenomenon that can not be gone between and block, intersect, thereby width and the line-spacing of contact have been expanded, when making the contact with corresponding FPC binding, have lower contraposition difficulty and higher yield.
2. " up and down put up a bridge " form, reduced significantly the go between area of its monolayer distribution of ITO, the substitute is the bridging line, so, X electrode and Y electrode have obtained good integration, have reduced its scan channel of control IC of connecting electrode pattern, and its width of contact and line-spacing are guaranteed, be convenient to the binding with PFC, also simplified simultaneously electric wiring.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing embodiment:
Fig. 1 is the schematic diagram of traditional handicraft individual layer multi-point touch screen sensor;
Fig. 2 is the schematic diagram of the utility model embodiment one;
Fig. 3 is the schematic diagram of the utility model embodiment two.
Embodiment
Embodiment 1
As shown in Figure 1, the sensor schematic diagram of the utility model embodiment one has comprised pattern, lead-in wire 20, the distribution schematic diagram of contact 21 of ITO induction electrode.
The sensor construction of the present embodiment is as follows:
The substrate 1 of one insulation transparent is the film (ITO FILM) of a PET material, is distributed with the ITO induction electrode in the one side of substrate 1, and this induction electrode has the electrode pattern that can respond to multiple spot human body touch-control; The scheme of kind electrode pattern is a lot, the form that the present embodiment has used plane comb type to coordinate, the tooth of this comb type is rectangle, comprise X electrode 11 and Y electrode 12, wherein, Y electrode 12 is along this substrate longitudinal extension Shang Xia 1, but X electrode 11 distributes along the bearing of trend of this Y electrode 12, and the comb type of this rectangular teeth coordinates pattern to have good multi-point touch inductive effects.
As figure, from induction electrode, no matter X electrode 11 or Y electrode 12 all have the ITO lead-in wire 20 that extends, this lead-in wire 20 is completed the electrical communication function of induction electrode; This lead-in wire 20 mainly comprises two classes, a class end be shaped to for the contact 21 of PFC binding, another kind of end is shaped to the bridging point 22 that connects for putting up a bridge.
The insulation course 30 that one deck insulating material is separately arranged is attached to the one side at ITO induction electrode place on this substrate 1, and, be centered around the periphery of all points 22 of putting up a bridge, have through hole in this bridging point 22 positions; On insulation course 30 surfaces, and on substrate 1, the one side at this induction electrode place is adhered to the layer of putting up a bridge, and this layer major embodiment of putting up a bridge is bridging line 40.
As seen, bridging line 40 20 has been completed the function that connects with respect to the pattern of ITO induction electrode with being connected on other plane, make the contact 21 of individual layer multi-point touch screen inductor be distributed in regional D in the concentrated area, and can be by lead-in wire 20 phenomenons of blocking, intersecting, thereby expanded the width of contact 21, when making contact 21 with corresponding FPC binding, have lower contraposition difficulty and higher yield.
The present embodiment also has some other characteristics:
The distributed areas D of contact 21 is positioned at a side of the periphery of this induction electrode region C, and the regional A at put up a bridge point 22 and insulation course 30 whole places is positioned at this induction electrode region C periphery opposite side opposite with contact 21, and namely C is in the centre, and A and D are in both sides; Wherein, near the X electrode 11 of contact 21 1 sides, its lead-in wire that extends 20 connecting terminals, all the other near the point 22 of putting up a bridge, are also this X electrode 11 of a-quadrant, its lead terminal is the point 22 of putting up a bridge.The distribution of lead-in wire 20 connecting terminal 21. these forms that are communicated with this Y electrode 12 makes contact 21 region D can be positioned at the edge of substrate 1, thereby has maximally utilised the side space of substrate 1, more facilitates with the binding of FPC to process.
The technological process of this embodiment product is as follows:
At first be the ITO forming step: this substrate 1 of insulation transparent of PET is provided, and wherein a surface is induction electrode through the etch-forming of ITO; Also simultaneously moulding part contact 21 and whole bridging points 22;
Next is the insulation course forming step: continue the insulation course 30 of moulding layer of transparent on the surface of this substrate 1, this insulation course planar surrounds all bridging points 22, and at this some place's reservation through hole of putting up a bridge; It is the bridging step at last: moulding one deck bridging layer on the substrate 1 of handling insulation course 30, this bridging major embodiment line 40 of putting up a bridge exactly, this bridging layer is positioned at insulation course 30 surfaces and comprises simultaneously the surface that is positioned at this substrate 1, and the bridging line 40 of the layer of putting up a bridge is communicated with corresponding described bridging point by through hole; Especially, the bridging line 40 of this bridging layer has also comprised the part that is shaped to contact 21.
As seen, the bridging form technique of this successively moulding is simple, and yield is high, and good with existing process equipment compatibility.The present embodiment adopts technique one deck insulating coating of printing in the insulation course forming step, be re-used as whole insulation course 30 and use, and its insulation effect is good, and moulding is quick, and consistance is also good.
In the bridging step of the present embodiment, the whole bridging line 40 of layer of putting up a bridge all adopts silver slurry typography, directly is printed in the surface of substrate 1 and insulation course 30, and moulding is quick, and precision is high.
Embodiment two:
As shown in Figure 2, the schematic diagram of the utility model embodiment two.
Compare with previous embodiment, maximum difference is, insulation course 30 is accompanied by the layer of putting up a bridge and is divided into two isolated area A and B.Therefore point 22 parts of putting up a bridge are positioned at a side B zone at 21 places, contact, and another part is positioned at the peripheral opposite side a-quadrant opposite with contact 21, induction electrode region.The X electrode 11 of close contact 21 1 sides in B zone, a part of connecting terminal 21 of its lead-in wire that extends 20, another part end is the point 22 of putting up a bridge; Remaining (a-quadrant) this X electrode 11, its end is the point 22 of putting up a bridge;
This form, can be referred to as " putting up a bridge up and down " form, zone with A and two bridgings of B has been characterized in reducing significantly the area of ITO lead-in wire 20 its monolayer distributions, the substitute is bridging line 40, so, X electrode 11 and Y electrode 12 have obtained good integration, have reduced its scan channel of control IC of connecting electrode pattern, and contact 21 its width and the line-spacing in D zone are guaranteed, be convenient to the binding with PFC, also simplified simultaneously electric wiring.
The above, it is only the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of namely doing according to the utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (7)
- One kind put up a bridge the lead-in wire sensor structure, it is characterized in that: comprising:One substrate, the insulation transparent material;The ITO induction electrode is attached to the one side of described substrate, has the electrode pattern that can respond to multiple spot human body touch-control; This induction electrode has the ITO lead-in wire that extends; This lead-in wire comprises two classes, a class end be shaped to for the contact of PFC binding, another kind of end is shaped to the bridging point that connects for putting up a bridge;Insulation course, insulating material is attached on this substrate this ITO induction electrode place one side, and the periphery of described bridging point has through hole in this bridging point position; AndThe layer of putting up a bridge is attached to insulation course or comprises on described substrate the one side at this ITO induction electrode place, has by described through hole to be communicated with bridging line between should putting up a bridge a little mutually.
- According to claim 1 a kind of put up a bridge the lead-in wire sensor structure, it is characterized in that: this insulation course comprises the insulating coating of printing or the PET film of attaching.
- 3. a kind of structure of the lead-in wire sensor of putting up a bridge according to claim 1, it is characterized in that: this induction electrode comprises two classes, and a class is the Y electrode along this substrate longitudinal extension, and another kind of is X electrode along this Y distribution of electrodes; Wherein, be distributed in a side of the periphery of this induction electrode region in described set of contacts; The described lead-in wire that is communicated with this Y electrode is connected described contact.
- According to claim 3 a kind of put up a bridge the lead-in wire sensor structure, it is characterized in that; Described bridging point and described insulation course all are positioned at this peripheral opposite side opposite with described contact in induction electrode region; Wherein, near the X electrode of described contact one side, its described lead-in wire that extends connects described contact, and all the other are near this X electrode of described bridging point, and its lead terminal is described bridging point.
- 5. a kind of structure of the lead-in wire sensor of putting up a bridge according to claim 3, it is characterized in that: a described bridging point part is positioned at a side at this place, contact, and another part is positioned at this periphery, induction electrode region opposite side opposite with described contact;Wherein, near the X electrode of described contact one side, the described lead-in wire part that it extends connects described contact, and another part end is described bridging point; Remaining this X electrode, its end are described bridging point;Described insulation course is divided into two parts according to the both sides at described bridging point place.
- 6. the structure of according to claim 3 or 4 or 5 described a kind of lead-in wire sensors of putting up a bridge, it is characterized in that: the electrode pattern of described X electrode and Y electrode comprises the form that plane comb type coordinates, and the tooth of this comb type is rectangle.
- 7. a kind of structure of the lead-in wire sensor of putting up a bridge according to claim 6, it is characterized in that: the described layer of putting up a bridge adopts the structure of silver slurry typography moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677030 CN203025669U (en) | 2012-12-10 | 2012-12-10 | Bridging lead wire sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677030 CN203025669U (en) | 2012-12-10 | 2012-12-10 | Bridging lead wire sensor structure |
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| CN203025669U true CN203025669U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220677030 Expired - Fee Related CN203025669U (en) | 2012-12-10 | 2012-12-10 | Bridging lead wire sensor structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116427A (en) * | 2012-12-10 | 2013-05-22 | 漳州宝发光电科技有限公司 | Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof |
| CN104391607A (en) * | 2014-12-11 | 2015-03-04 | 山东华芯富创电子科技有限公司 | Touch screen capable of preventing silver wire circuit break and manufacturing method of touch screen |
| CN104793785A (en) * | 2015-03-24 | 2015-07-22 | 晟光科技股份有限公司 | Method for achieving high-definition screen allocation in small winding displacement space |
-
2012
- 2012-12-10 CN CN 201220677030 patent/CN203025669U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116427A (en) * | 2012-12-10 | 2013-05-22 | 漳州宝发光电科技有限公司 | Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof |
| CN103116427B (en) * | 2012-12-10 | 2016-05-18 | 文山嘉鑫科技有限公司 | Bridging lead-in wire sensor and the moulding process thereof of individual layer multi-point touch screen |
| CN104391607A (en) * | 2014-12-11 | 2015-03-04 | 山东华芯富创电子科技有限公司 | Touch screen capable of preventing silver wire circuit break and manufacturing method of touch screen |
| CN104793785A (en) * | 2015-03-24 | 2015-07-22 | 晟光科技股份有限公司 | Method for achieving high-definition screen allocation in small winding displacement space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bridging lead wire sensor structure Effective date of registration: 20140314 Granted publication date: 20130626 Pledgee: Industrial Commercial Bank of China Ltd Sinpo Zhangzhou road subbranch Pledgor: Zhangzhou Baofa Optical-electrical Technology Co., Ltd. Registration number: 2014350000011 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20151210 |
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| EXPY | Termination of patent right or utility model |