CN104503642A - Welding structure at tail of touch control film - Google Patents
Welding structure at tail of touch control film Download PDFInfo
- Publication number
- CN104503642A CN104503642A CN201410823527.4A CN201410823527A CN104503642A CN 104503642 A CN104503642 A CN 104503642A CN 201410823527 A CN201410823527 A CN 201410823527A CN 104503642 A CN104503642 A CN 104503642A
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- CN
- China
- Prior art keywords
- touch control
- control film
- tail
- whipping
- touch
- 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.)
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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
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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)
- Electronic Switches (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a welding structure at a tail of a touch control film. The welding structure comprises a touch control film and a flexible circuit board, wherein a plurality of fine wire sensors are distributed on the tail of the touch control film; an insulation welding disc is connected with the back surface of the flexible circuit board; and the fine wire sensors are connected to the insulation welding disc. The welding structure effectively avoids deformation of the touch control film due to high temperature during tin soldering; in addition, the flexible circuit board is directly adhered to the tail part of the touch control film; no objects are required to be adhered; production procedures are decreased; the production efficiency is improved; for the touch control film with the long side tail, the size of a packaging barrel of the touch control film is also greatly reduced; the cost of packaging materials and transportation cost are lowered; and the production cost is saved.
Description
Technical field
The present invention relates to electronic applications, particularly a kind of welded structure of whipping place of touch control film.
Background technology
Projecting type capacitor touch control film is a kind of micro wire that encapsulates is main sensor film, integrates advantages such as accurately responding to location, flexibility and high transparency, for the accurate touch-control location of more than 12 inches touch screens, is also applied to accurate interaction.
Projecting type capacitor technology, be a kind of at glass or the horizontal and vertical electrod-array of transparent membrane surface making, the electrode capacitance utilizing these horizontal and vertical change detects the touch-control of finger, and is divided into two types according to the difference of the producing method of electric capacity:
Self-capacitance touch control film, transverse direction and longitudinal electrode array is made into transparent conductive material at glass or transparent membrane surface, these horizontal and vertical electrodes form electric capacity with ground respectively, and this electric capacity is exactly usually said self-capacitance, namely electrode electric capacity over the ground.When finger touch is to capacitance plate, the electric capacity of finger will be added in screen body capacitance, and screen body capacitance amount is increased.When touch detection, self-capacitance screen detects laterally and longitudinal electrode array successively respectively, according to the change of electric capacity before and after touch, determines lateral coordinates and longitudinal coordinate respectively, is then combined into the touch coordinate of plane.The scan mode of self-capacitance, is equivalent to the touch point on touch-screen to project to X-axis and Y direction respectively, then calculates coordinate in X-axis and Y direction respectively, be finally combined into the coordinate of touch point;
Mutual capacitance touch control film, transverse electrode and longitudinal electrode is made at the transparent conductive material of glass or transparent membrane surface, the difference that it and self-capacitance shield is, the place that two arrays of electrodes intersects will form electric capacity, and also namely this two arrays of electrodes constitutes the two poles of the earth of electric capacity respectively.When finger touch is to capacitance plate, have impact on the coupling between two electrodes near touch point, thus change the electric capacity between these two electrodes.When detecting mutual capacitance size, horizontal electrode sends pumping signal successively, and longitudinal all electrodes Received signal strength simultaneously, can obtain the capacitance size of all horizontal and vertical electrodes intersect points, i.e. the capacitance size of the two dimensional surface of whole touch-screen like this.According to touch screen two-dimensional capacitance change data, the coordinate of each touch point can be calculated.Therefore, even if screen there is multiple touch point, the true coordinate of each touch point can also be calculated.
No matter be self-capacitance touch control film or mutual capacitance touch control film, the micro wire sensor on film is all needed to be prolonged born by flexible PCB, then be connected with real drive circuit board by flexible PCB, drive circuit board, by USB line connection control main frame, realizes complete signal path with this.
And in the prior art, easily there is rosin joint in touch control film welding, pad base can not bend, affect the bending property of touch control film entirety, in addition pad growth strip, can not bend, when causing the touch control film packing long limit whipping, required pail pack is bulky, and wrappage and trucking costs all will double, and improve production cost; In addition, soldering is mainly manual operations, precision is difficult to ensure, cause defect rate higher, and during high temperature soldering, easily cause the deformation of film, if and in the production technology of touch control film, add a procedure---paste insulation strip, and due to the place of posting insulation strip can not along with touch control film natural torsion, then may cause user's inconvenience when using touch control film.
Summary of the invention
For above-mentioned technical matters, the present invention discloses a kind of welded structure of whipping place of touch control film, comprising: touch control film and flexible PCB, and the whipping place of described touch control film is distributed with some micro wire sensors; The back side of described flexible PCB connects an insulating pad, and described micro wire sensor is connected on described insulating pad.
Preferably, described micro wire sensor by soldering on described insulating pad.
The invention has the beneficial effects as follows:
1, one piece of hard insulating pad is connected by the back side at the position be connected with flexible PCB at the whipping place of touch control film, by soldering process, the micro wire at the whipping place of touch control film is welded on the pad of flexible PCB again, thus the deformation of touch control film part that high temperature when effectively prevent soldering causes, and the whipping part of flexible PCB and touch control film is directly fitted, do not need to paste any other object again, no longer need to paste insulation strip, decrease the procedure in touch control film production technology, improve production efficiency, welding precision is guaranteed, reduce defect rate,
2, owing to not having the impact of insulation strip, user, can natural torsion when using touch control film;
3, for the touch control film of long limit whipping, the volume of its pail pack also reduces greatly, reduces cost and the transportation cost of wrappage, has saved production cost.
Accompanying drawing explanation
Fig. 1 is the whipping place of touch control film of the present invention and flexible PCB structural representation when separating;
Fig. 2 is the structural representation of the whipping place of touch control film of the present invention when being connected with flexible PCB;
Wherein, 1 is flexible PCB; 2 is touch control films; 3 is the insulating pad be connected on flexible PCB; 4 is the insulating pad be connected on touch control film; 5 is layouts of micro wire sensor; 6 is the overlapping regions at the whipping place of flexible PCB and touch control film.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to instructions word to make those skilled in the art.
As shown in the figure, the present invention discloses a kind of welded structure of whipping place of touch control film, comprising: touch control film 2 and flexible PCB 1, and the whipping place of described touch control film is distributed with some micro wire sensors 5; The back side of described flexible PCB connects an insulating pad, and described micro wire sensor is connected on described insulating pad.Described micro wire sensor by soldering on described insulating pad.Fig. 1 is the whipping place of touch control film of the present invention and flexible PCB structural representation when separating; Fig. 2 is the structural representation of the whipping place of touch control film of the present invention when being connected with flexible PCB; Wherein, 1 is flexible PCB, and 2 is touch control films, 3 is pads of flexible PCB, and 4 is that touch control film will carry out with the pad 3 of flexible PCB the part that is connected, and 5 is layouts of micro wire sensor, use its layout of represented by dotted arrows at this, practical layout is more complicated, omits in the drawings; 6 is the overlapping regions at the whipping place of flexible PCB and touch control film.
One piece of hard insulating pad is connected by the back side at the position be connected with flexible PCB at the whipping place of touch control film, by soldering process, the micro wire at the whipping place of touch control film is welded on the pad of flexible PCB again, thus the deformation of touch control film part that high temperature when effectively prevent soldering causes, and the whipping part of flexible PCB and touch control film is directly fitted, do not need to paste any other object again, no longer need to paste insulation strip, decrease the procedure in touch control film production technology, improve production efficiency, welding precision is guaranteed, reduce defect rate, owing to not having the impact of insulation strip, user, can natural torsion when using touch control film, for the touch control film of long limit whipping, the volume of its pail pack also reduces greatly, reduces cost and the transportation cost of wrappage, has saved production cost.
Although embodiment of the present invention are open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (2)
1. the welded structure at the whipping place of touch control film, is characterized in that, comprising: touch control film and flexible PCB, and the whipping place of described touch control film is distributed with some micro wire sensors; The back side of described flexible PCB connects an insulating pad, and described micro wire sensor is connected on described insulating pad.
2. the welded structure at the whipping place of touch control film according to claim 1, is characterized in that: described micro wire sensor by soldering on described insulating pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823527.4A CN104503642A (en) | 2014-12-26 | 2014-12-26 | Welding structure at tail of touch control film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823527.4A CN104503642A (en) | 2014-12-26 | 2014-12-26 | Welding structure at tail of touch control film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104503642A true CN104503642A (en) | 2015-04-08 |
Family
ID=52945043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410823527.4A Pending CN104503642A (en) | 2014-12-26 | 2014-12-26 | Welding structure at tail of touch control film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104503642A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673001A (en) * | 2008-09-12 | 2010-03-17 | 乐金显示有限公司 | Liquid crystal display device |
| CN101872264A (en) * | 2009-04-21 | 2010-10-27 | 富士通电子零件有限公司 | Touchscreen panel, electronic apparatus and method of fabricating touchscreen panel |
| US20110254758A1 (en) * | 2010-04-19 | 2011-10-20 | Qualcomm Mems Technologies, Inc. | Flex Design and Attach Method for Reducing Display Panel Periphery |
| CN102314254A (en) * | 2010-06-29 | 2012-01-11 | 乐金显示有限公司 | Touch panel |
| US20140125403A1 (en) * | 2012-11-07 | 2014-05-08 | Esat Yilmaz | Resistive Interpolation for a Touch Sensor with Opaque Conductive Material |
-
2014
- 2014-12-26 CN CN201410823527.4A patent/CN104503642A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673001A (en) * | 2008-09-12 | 2010-03-17 | 乐金显示有限公司 | Liquid crystal display device |
| CN101872264A (en) * | 2009-04-21 | 2010-10-27 | 富士通电子零件有限公司 | Touchscreen panel, electronic apparatus and method of fabricating touchscreen panel |
| US20110254758A1 (en) * | 2010-04-19 | 2011-10-20 | Qualcomm Mems Technologies, Inc. | Flex Design and Attach Method for Reducing Display Panel Periphery |
| CN102314254A (en) * | 2010-06-29 | 2012-01-11 | 乐金显示有限公司 | Touch panel |
| US20140125403A1 (en) * | 2012-11-07 | 2014-05-08 | Esat Yilmaz | Resistive Interpolation for a Touch Sensor with Opaque Conductive Material |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
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| WD01 | Invention patent application deemed withdrawn after publication |