CN108803956A - A kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen - Google Patents
A kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen Download PDFInfo
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- CN108803956A CN108803956A CN201810680843.9A CN201810680843A CN108803956A CN 108803956 A CN108803956 A CN 108803956A CN 201810680843 A CN201810680843 A CN 201810680843A CN 108803956 A CN108803956 A CN 108803956A
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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
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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- 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
- G06F2203/04113—Peripheral electrode pattern in resistive digitisers, i.e. electrodes at the periphery of the resistive sheet are shaped in patterns enhancing linearity of induced field
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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)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screens, including upper wiring board and lower wiring board, upper wiring board includes the pet layer of reaching the standard grade for being coated with ITO coatings of reaching the standard grade, and ITO coatings of reaching the standard grade are drawn by the conductive lead wire of reaching the standard grade of both sides；Lower wiring board includes the offline glass plate for being coated with offline ITO coatings, and offline ITO coatings are drawn by the offline conductive lead wire of both sides；It is additionally provided with decorative ink layer in upper wiring board, decorative ink layer will reach the standard grade conductive lead wire to touch screen in a state of use and offline conductive lead wire covers.The present invention is coated with decorative ink layer inside touch screen, to reach the standard grade conductive lead wire and the covering of offline conductive lead wire, it eliminates using the cover board PET and optical cement OCA on the outside of touch screen, reduce materials at two layers, reduction is bonded twice so that the production technology of touch screen simplifies, production efficiency improves, the disqualification rate for also reducing processing simultaneously, improves the light transmittance of product and the sensitivity of operation, reduces the overall thickness and weight of product.
Description
Technical field
The present invention relates to touch screen technology field, more particularly to a kind of special-shaped four lines of double-layer structure band decoration panel pure-surface
Resistive touch screen.
Background technology
With the development of information-intensive society, information inquiry demand constantly increases, and touch screen is with the durable, response time
It is short, be easy to exchange many advantages, such as, more and more used by people.Keep human-computer interaction simpler directly, it is greatly convenient
It is ignorant of the user of operation, it is most simple and convenient at present input equipment.
Touch screen is that the position (as used finger, light pen or other objects) is contacted with display screen surface to identify by control system
The device set, it so that control system is more intuitive, simple, easy to operate.When light pen or finger etc. touch touch screen,
The signals such as the sound, light or electric current of contact point can be made to change, then realize the operation of touch control by sensor.Touch screen foundation
Operating principle can be divided into resistance-type, condenser type, acoustic wave, optical profile type and induction.Each technology respectively has its principle of induction
And advantage and disadvantage, the touch screen of different technologies can be selected according to different purposes, reached optimum efficiency.Small-medium size product market at present
It is most widely used with resistive touch screen.Resistive touch screen is divided into as digital type and matching test, and digital type is in material and skill
The requirement level of art is relatively low, and matching test touch screen technology can be divided into four-wire type, five-line, six lines according to electrode wiring mode again
Formula, seven wire types and eight wire types etc..The consumer electronics device market of the overwhelming majority is wherein occupied with four-wire type, reason is its knot
Structure it is simple and without protection of the patent right with size other touch technology products then because relative cost is higher, patent problem, Wu Fayu
Four-wire resistance type product competition.Four-wire resistance type touch screen operation principle is：ITO conductive films and ITO electro-conductive glass, respective cloth
Line is coated with interlayer in X-axis and Y-axis in ITO conductive films and ITO electro-conductive glass, after assembled fitting, with finger or pen etc.
Material presses to upper conductive film, and levels X-axis is caused to be connected at compression in Y-axis, thus changes its resistance value,
A voltage signal is generated, after the corresponding coordinate at compression is calculated via controller, then is scaled the physical location of cursor.Due to
Cloth X-axis and Y-axis line are needed on touch screen ITO conductive films and ITO electro-conductive glass, then is also needed to when assembling in the outside of touch screen
Cover board is installed, the edge on the inside of cover board needs to print wiring of the lighttight decorative ink for covering X-axis and Y-axis, otherwise cloth
Line is as it can be seen that influence the beauty of touch screen.
All it is using cover board of the installation with decorative ink side, with outside optical cement OCA and ITO conductive films in the prior art
Side fitting covers touch screen wiring, thus significantly increases the integral thickness of touch screen, and due to the presence of cover board, and one
Determine to reduce the sensitivity of touch screen in degree, it is larger to need to set bias voltage difference, sensitivity could be met and wanted
It asks.Such as Chinese invention patent CN107479778A discloses a kind of G+G structures four-wire resistance type touch screen, including upper layer ITO
The edge of electro-conductive glass and lower layer's ITO electro-conductive glass, the upper layer ITO electro-conductive glass and lower layer's ITO electro-conductive glass uses
Frame adhesive is adhesively-bonded together to form resistive touch screen, is uniformly distributed between the intermediate ITO conduction regions of the resistive touch screen
Have a support dispensing, be printed with conductive silver dispensing between peripheral silver wire circuit, the silver wire circuit of the lower layer ITO electro-conductive glass with
Flexible PCB connects.This structure belongs to typical four lines touch screen structure, and when use needs to install cover board on the outside to hide
Drop cloth line.For another example Chinese invention patent CN102778989A discloses a kind of four-line resistive touch screen, which is characterized in that includes：
First conductive layer, insulating layer, the second conductive layer；The insulating layer be located at first conductive layer and second conductive layer it
Between；First conductive layer has the first positive electrode and the first negative electrode；Second conductive layer has the second positive electrode and the
Two negative electrodes；Wherein, resistance of first conductive layer on the first negative electrode to the first positive electrode direction is led with described second
Resistance of the electric layer on the second negative electrode to the second positive electrode direction is equal.Equally it is to need that cover board is installed when in use to solve
Connect up the problem of (or electrode) exposure.
Invention content
In order to solve the above technical problems, the present invention provides a kind of special-shaped four lines electricity of double-layer structure band decoration panel pure-surface
Resistive touch screen, including upper wiring board and lower wiring board, the upper wiring board include pet layer of reaching the standard grade, and are set on the pet layer of reaching the standard grade
It reaches the standard grade ITO coatings, the ITO coatings of reaching the standard grade are drawn by the conductive lead wire of reaching the standard grade of both sides；The lower wiring board includes offline
Glass plate, the offline glass plate are equipped with offline ITO coatings, the offline conductive lead wire that the offline ITO coatings pass through both sides
It draws；Conductive lead wire and the orthogonal formation X-Y coordinate of offline conductive lead wire, the upper wiring board and the lower circuit of reaching the standard grade
Plate uses adhered by double sided plaster, decorative ink layer is additionally provided in the upper wiring board, the decoration is oily in a state of use for touch screen
To reach the standard grade conductive lead wire and offline conductive lead wire of layer of ink covers.
Further, the decorative ink layer is coated in the edge formation ink frame of the pet layer of reaching the standard grade, described to reach the standard grade
ITO coatings are located in ink frame, and for ITO coatings of reaching the standard grade with ink frame in the same face, the conductive lead wire of reaching the standard grade is located at decorative ink
In the area of coverage of layer, conductive lead wire of reaching the standard grade passes through conductive black carbon paste ink or reach the standard grade transparent conductive ink and the ITO that reaches the standard grade of reaching the standard grade
Coating is electrically connected.
Further, the decorative ink layer and reach the standard grade and be also coated with one layer of upper line insulating layer outside conductive lead wire, it is described on
Line insulating layer is equipped with avoid holes in the connection jaws for conductive lead wire of reaching the standard grade, and the conductive lead wire of reaching the standard grade exposes from the avoid holes.
Further, the offline conductive lead wire is directly electrically connected with the offline ITO coatings, offline ITO coatings and
Offline filling-in insulating layer is equipped between offline glass plate edge so that the upper surface of offline filling-in insulating layer and offline conductive lead wire
Upper surface flush, the outer application of the offline conductive lead wire and offline filling-in insulating layer has lower line insulating layer, described offline
Insulating layer is equipped with avoid holes in the connection jaws of offline conductive lead wire, and the offline conductive lead wire exposes from avoid holes.
Further, described to reach the standard grade conductive lead wire and offline conductive lead wire is printed as using conductive silver glue ink.
Further, the decorative ink layer is equipped with two layers or two layers or more, is used to form the label of different colours, described
Label can be trade mark, word, pattern, background color etc. any one or a few, form panel decoration effect；Decorative ink simultaneously
Layer is also used for covering reach the standard grade conductive lead wire and offline conductive lead wire.Since decorative ink is at positioned at the inside of touch screen, avoid
It scratches, change colour, fall off, to ensure touch screen appearance long time stability.
Further, the offline conductive lead wire is connected with FPC.
Further, on the lower wiring board at FPC connectors be equipped with filling-in collets so that the upper surface of elargol layer and
The upper surface flush of filling-in collets.
Further, upper wiring board is electrically connected with lower wiring board by way of elargol.
Further, the shape of product carries out bevelling finishing by way of CNC processing, is not limited to simple rectangular
Shape.
As can be seen from the above technical solutions, the present invention is coated with opaque decorative ink layer in touch screen, is led reaching the standard grade
Electrical lead and offline conductive lead wire cover, and eliminate the cover board PET and optical cement OCA on the outside of using touch screen, reduce two layers
Material, reduction are bonded twice so that the production technology of touch screen simplifies, and production efficiency improves, while also reducing processing not
Qualification rate improves the light transmittance of product and the sensitivity of operation, reduces the overall thickness and weight of product.It is of the present invention to touch
Screen is touched in assembly in use, eliminating cover board, the light transmittance of touch screen and the sensitivity of operation is improved, reduces the total of product
Thickness and weight.Compared with prior art, performance requirement can be met under lower bias voltage, manufacturing cost significantly drops
It is low.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without having to pay creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the assembly structure figure (overlook direction) of touch screen of the present invention；
Fig. 2 is the cross-sectional view at A-A in Fig. 1；
Fig. 3 is the cross-sectional view at B-B in Fig. 1；
Fig. 4 is the cross-sectional view at C-C in Fig. 1；
Fig. 5 is the overlooking structure figure of upper wiring board；
Fig. 6 is the overlooking structure figure of lower wiring board；
Fig. 7 is the trace-diagram of the elargol conductive lead wire on upper wiring board；
Fig. 8 is the trace-diagram of the elargol conductive lead wire on lower wiring board；
Fig. 9~16 are a kind of production stream of upper wiring board embodiment (the upper wiring board containing three layers of decorative ink layer) of the present invention
Journey schematic diagram, specially：
Fig. 9 is the structural schematic diagram after being coated with the three layers of decorative ink layer of pet layer external coating of reaching the standard grade for ITO coatings of reaching the standard grade；
Figure 10 is the cross-sectional view at A-A in Fig. 9；
Figure 11 is that one layer of application is reached the standard grade the structure after conductive carbon paste or transparent conductive ink of reaching the standard grade again for the surface of structure shown in Fig. 9
Schematic diagram；
Figure 12 is the cross-sectional view at A-A in Figure 11；
Figure 13 is that the surface of the structure shown in Figure 11 republishes the structural schematic diagram after reaching the standard grade conductive lead wire；
Figure 14 is the cross-sectional view at A-A in Figure 13；
Figure 15 is the surface structural schematic diagram in application after line insulating layer again of the structure shown in Figure 13；
Figure 16 is the cross-sectional view at A-A in Figure 15.
Specific implementation mode
Below in conjunction with the accompanying drawings, and in conjunction with the embodiments the present invention is described further.
As shown in figures 1-4, present embodiment discloses a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance types
Touch screen, including upper wiring board and lower wiring board, upper wiring board include reaching the standard grade pet layer 1, by etching, reaching the standard grade on pet layer 1
The ITO coatings 2 of reaching the standard grade of whole face plating are processed into the shape of needs, print Multilayer decorative ink layer at the edge for pet layer 1 of reaching the standard grade, should
Decorative ink layer using in the prior art any one be used for the covering black or colored ink of touch screen, usually may be used existing
There is the ink being printed in technology on the outside of cover board.In order to reach the requirement of panel appearance effect, decorative ink layer may be used two
Layer or multilayer are as shown in figures 1-4 a kind of embodiment of decorative ink layer when decorative ink layer uses double-layer structure：Dress
It includes the first black ink layer 3 and the second black ink layer 4 to adorn ink layer.When decorative ink layer uses multilayered structure, decoration
Ink layer can also be used to the mark to form different colours while reaching the standard grade conductive lead wire and offline conductive lead wire for covering
Note, the label can be trade mark, word, pattern, background color etc. any one or a few, form panel decoration effect, such as Fig. 9
~16 be another embodiment of decorative ink layer：Decorative ink layer includes ink layer I 18, ink layer II 19 and ink layer III
20, ink layer I 18 is used for being formed word logo, and for forming pattern logo, (color or pattern of ink layer can press ink layer III
Demand is selected, and the present embodiment has been merely given as a kind of performance).Ink layer II 19 plays covering and reaches the standard grade conductive lead wire under
The effect of line conductive lead wire.Decorative ink layer and ITO coatings of reaching the standard grade are located at the same face, from the lateral surface of upper wiring board（Reach the standard grade ITO
The back side of coating）It looks over, it can be seen that the pattern logo that the word logo and ink layer III formed by ink layer I 18 is formed,
Simultaneously reach the standard grade conductive lead wire and offline conductive lead wire it is invisible, realize appearance looks elegant.It is emphasized that ought wherein one layer dress
It, can be another at this when adoring ink layer to be covered by another layer of decorative ink layer, but wishing to show covered decorative ink layer again
Hole slot is reserved on one layer of decorative ink layer.Such as shown in Fig. 9~16, ink layer III is located at the covering range of ink layer II, still
Ink layer III needs to show when in use as pattern logo, at this moment just needs to reserve hole slot 14 in ink layer II so that
Ink layer III can be observed.Thus, which there is no need to be confined to how to arrange " to be used to form the oil of pattern when producing and processing
Layer of ink " and " ink layer for covering " position relationship, each layer decorative ink layer can be according to production and processing complexity, happinesses
The requirements such as good, beauty carry out unrestricted choice.The sideline of the outer edge of decorative ink layer and pet layer of reaching the standard grade flushes.The ITO paintings of reaching the standard grade
Layer is drawn by the conductive lead wire 5 of reaching the standard grade of both sides, and the Y axis coordinate system of touch location is constituted between the conductive lead wire 5 of reaching the standard grade of both sides,
As shown in Figure 7.Conductive lead wire 5 of reaching the standard grade is located in the covering area 6 of decorative ink floor, and conductive lead wire 5 of reaching the standard grade is by conductive carbon of reaching the standard grade
Glue or reach the standard grade transparent conductive ink 7 and the electric connection of ITO coatings 2 of reaching the standard grade.Due to reach the standard grade carbon paste be black conductive glue, color with it is black
The decorative ink layer of color matches, therefore does not interfere with beauty.But if the background color of decorative ink layer is other face except black
Conductive carbon paste of reaching the standard grade then is changed to transparent conductive ink of reaching the standard grade by color.Conductive lead wire 5 of reaching the standard grade is also coated with one layer outside and reaches the standard grade
Insulating layer 8, upper line insulating layer 8 are equipped with avoid holes 10 in the connection jaws 9 for conductive lead wire 5 of reaching the standard grade, and conductive lead wire 5 of reaching the standard grade is kept away from described
Hole 10 is allowed to expose, for connecting outer member.
As shown in figs. 2 to 4, lower wiring board includes offline glass plate 11, and offline glass plate 11 is equipped with offline ITO coatings
12, offline ITO coatings 12 are drawn by the offline conductive lead wire 13 of both sides, are constituted and are touched between the offline conductive lead wire 13 of both sides
The X axis coordinate system of position, as shown in Figure 8.Offline conductive lead wire 13 is directly electrically connected with offline ITO coatings 12, and offline ITO is applied
Layer 12 and 11 edge of offline glass plate between be equipped with offline filling-in insulating layer 15 so that the upper surface of offline filling-in insulating layer 15 and
The upper surface flush of offline conductive lead wire, the subsequent technique for being conducive to lower wiring board (print follow-up after offline conductive lead wire 13
Technique) coating surface flatness quality control.Under the outer application of offline conductive lead wire 13 and offline filling-in insulating layer 15 has
Line insulating layer 16, lower line insulating layer 16 offline conductive lead wire connection jaws be equipped with avoid holes 10, the offline conductive lead wire from
Avoid holes are exposed.It reaches the standard grade conductive lead wire and offline conductive lead wire is all made of conductive silver glue ink and is printed as.Offline conductive lead wire connection
Have a FPC, the structure and connection type of FPC and conventional touch screen it is identical, the present embodiment does not do special requirement.
The upper wiring board and lower wiring board are bonded using double faced adhesive tape 17.After the completion of bonding from the direction of upper wiring board
Touch screen, will reach the standard grade conductive lead wire and offline conductive lead wire of the decorative ink layer cover, need not in addition be bonded and be printed on black
The cover board PET and optical cement OCA of frame, reduce the cost of touch screen, reduce the thickness of touch screen entirety, improve touch
The production technology of the translucency of screen and sensitivity, touch screen simplifies, and production efficiency improves, while also reducing the unqualified of processing
Rate.
Technical solution provided by the present invention is described in detail above, for those of ordinary skill in the art,
The thought of embodiment according to the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen, including upper wiring board and lower circuit
Plate, the upper wiring board include pet layer of reaching the standard grade, and the pet layer of reaching the standard grade is equipped with ITO coatings of reaching the standard grade, and the ITO coatings of reaching the standard grade are logical
Cross the conductive lead wire extraction of reaching the standard grade of both sides；The lower wiring board includes offline glass plate, and the offline glass plate is equipped with offline
ITO coatings, the offline ITO coatings are drawn by the offline conductive lead wire of both sides；Conductive lead wire and the offline conduction of reaching the standard grade
The orthogonal formation X-Y coordinate of lead, the upper wiring board and lower wiring board use adhered by double sided plaster, which is characterized in that institute
State and be additionally provided with decorative ink layer in wiring board, touch screen in a state of use the decorative ink layer will reach the standard grade conductive lead wire and
Offline conductive lead wire covers.
2. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 1,
It is characterized in that, the edge that the decorative ink layer is coated in the pet layer of reaching the standard grade forms ink frame, the ITO coatings position of reaching the standard grade
In ITO coatings of in ink frame, reaching the standard grade with ink frame in the same face, the conductive lead wire of reaching the standard grade is located at the area of coverage of decorative ink layer
Interior, conductive lead wire of reaching the standard grade conductive black carbon paste ink or reaches the standard grade transparent conductive ink and ITO coatings of reaching the standard grade electrically connect by reaching the standard grade
It connects.
3. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 2,
It is characterized in that, one layer of upper line insulating layer, the upper line insulating layer is also coated with outside the decorative ink layer and conductive lead wire of reaching the standard grade
Avoid holes are equipped in the connection jaws for conductive lead wire of reaching the standard grade, the conductive lead wire of reaching the standard grade exposes from the avoid holes.
4. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 1,
It is characterized in that, the offline conductive lead wire is directly electrically connected with the offline ITO coatings, offline ITO coatings and offline glass
Offline filling-in insulating layer is equipped between edges of boards edge so that the upper surface of the upper surface and offline conductive lead wire of offline filling-in insulating layer
It flushes, the outer application of the offline conductive lead wire and offline filling-in insulating layer has lower line insulating layer, the lower line insulating layer to exist
The connection jaws of offline conductive lead wire are equipped with avoid holes, and the offline conductive lead wire exposes from avoid holes.
5. according to a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type of Claims 1 to 4 any one of them
Touch screen, which is characterized in that described to reach the standard grade conductive lead wire and offline conductive lead wire is printed as using conductive silver glue ink.
6. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 5,
It is characterized in that, the decorative ink layer is equipped with two layers or two layers or more, is used to form the label of different colours, while being also used for hiding
Cover line conductive lead wire and offline conductive lead wire.
7. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 5,
It is characterized in that, the offline conductive lead wire is connected with FPC.
8. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 1,
It is characterized in that, is equipped with filling-in collets on the lower wiring board at FPC connectors so that the upper surface of elargol layer and filling-in insulation
The upper surface flush of block.
9. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 1,
It is characterized in that, upper wiring board is electrically connected with lower wiring board by way of elargol.
10. a kind of double-layer structure band decoration panel pure-surface abnormity four-wire resistance type touch screen according to claim 1,
It is characterized in that, the shape of product carries out bevelling finishing by way of CNC processing, is not limited to simple rectangle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810680843.9A CN108803956B (en) | 2018-06-27 | 2018-06-27 | Pure plane special-shaped four-wire resistive touch screen with decorative panels in two-layer structure |
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| CN201810680843.9A CN108803956B (en) | 2018-06-27 | 2018-06-27 | Pure plane special-shaped four-wire resistive touch screen with decorative panels in two-layer structure |
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