CN1838151A - Touch pad with single-layer printed circuit board structure - Google Patents
Touch pad with single-layer printed circuit board structure Download PDFInfo
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- CN1838151A CN1838151A CN 200510056843 CN200510056843A CN1838151A CN 1838151 A CN1838151 A CN 1838151A CN 200510056843 CN200510056843 CN 200510056843 CN 200510056843 A CN200510056843 A CN 200510056843A CN 1838151 A CN1838151 A CN 1838151A
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- printed circuit
- induction
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Abstract
This invention relates to a touch pad with single-layer printed circuit board structure. Wherein, it comprises a PCB with a sensing zone on lower layer and periphery accessory zone. Besides, it arranges a first and second direction-sense lines directly connected the accessory zone while other non-connected lines in the sensing zone are linked by the carbon membrane wire.
Description
Technical field
The present invention is relevant a kind of Trackpad, particularly about a kind of Trackpad of single-layer printed circuit board structure.
Background technology
Trackpad has been widely used on the electronic product, comprises hand-held computer, personal digital assistant, mobile phone or other electronic system.The touch control panel device person of being to use slides on level and smooth panel or contact with finger or conductive material pointer for example, cursor is produced relatively move, absolute coordinates moves or other extensibility function, emulation keypress function for example, input media.Traditional Trackpad is four layer printed circuit structures, its sectional view as shown in Figure 1, comprise that the line of induction 104 of a directions X is positioned at the ground floor of printed circuit board (PCB) 102, the line of induction 108 of one Y direction is positioned at the second layer of printed circuit board (PCB) 102, one insulation course 106 is between the line of induction 108 of the line of induction 104 of directions X and Y direction, one ground plane 112 is positioned at the 3rd layer of printed circuit board (PCB) 120, one insulation course 110 is between the line of induction 108 and ground plane 112 of Y direction, one part layer 118 is positioned at the 4th layer of printed circuit board (PCB) 102, one insulation course 114 is between ground plane 112 and part layer 118, and one insulated coverings 122 be attached at the top of printed circuit board (PCB) 102, operating area as finger or pointer, wherein, the line of induction 104 of directions X is connected to part layer 118 via perforation 116 and 120 respectively with the line of induction 108 of Y direction.Though the existing ground plane 112 that experimental results show that not is certain needs and be three layer printed circuit structures with four layer printed circuit designs simplifications, yet the Trackpad of this kind structure can't effectively reduce cost.
In order to reduce cost, therefore develop the Trackpad that two layer printed circuit structures, its sectional view as shown in Figure 2, the line of induction 204 that comprises a directions X, as shown in Figure 3A, be positioned at the upper strata of printed circuit board (PCB) 202, the line of induction 208 of one Y direction, shown in Fig. 3 B, with the lower floor that is positioned at printed circuit board (PCB) 202 in its peripheral part district 210, one insulation course 206 is between the line of induction 208 and peripheral component district 210 thereof of the line of induction 204 of directions X and Y direction, and one insulated coverings 214 be attached to the top of printed circuit board (PCB) 202, as the operating area of finger or pointer, wherein, the line of induction 204 of directions X is connected to part district 210 via perforation 212, and 208 of the lines of induction of Y direction need not bored a hole and are connected directly to part district 210.The vertical view of its printed circuit board (PCB) 202 of Trackpad of two layer printed circuit structures as shown in Figure 2 as shown in Figure 4, the line of induction 204 of directions X and the line of induction 208 of Y direction lay respectively at the corresponding zone in upper strata and lower floor of printed circuit board (PCB) 202, and part district 210 then is positioned at the outer peripheral areas of the line of induction 208 of Y direction of the lower floor of printed circuit board (PCB) 202.Fig. 5 is the understructure synoptic diagram of its printed circuit board (PCB) 202 of Trackpad of two layer printed circuit structures shown in Figure 2, the line of induction of directions X is connected to other part 218 via perforation behind 212 controllers 216 that are connected in the part district again, and the line of induction 208 of Y direction is connected to other part 218 after then being connected directly to controller 216 in the part district 210 again.
In order to keep two layer printed circuit structures and traditional four layer printed circuit structures have equal area, so that under the situation that does not change mechanism design, can replace mutually each other to make things convenient for modularization, further develop out two layer printed circuit structures, its sectional view as shown in Figure 6, the line of induction 604 that comprises a directions X and the line of induction 606 of Y direction all are positioned at the upper strata of printed circuit board (PCB) 602, one part layer 616 is positioned at the lower floor of printed circuit board (PCB) 602, one insulation course 608 is between the line of induction 606 and part layer 616 of the line of induction 604 of directions X and Y direction, and one insulated coverings 614 be attached to the top of printed circuit board (PCB) 602, operating area as finger or pointer, because the line of induction 604 and 606 of directions X and Y direction is positioned at the upper strata of printed circuit board (PCB) 602, therefore needing to see through respectively perforation 618 links to each other with the part layer 616 of printed circuit board (PCB) 602 lower floors with 620, and intersect for fear of the line of induction 606 of the line of induction 604 of directions X and Y direction and to cause short circuit, the line of induction 606 of Y direction does not link together, and stamp the line of induction 606 that carbon film lead 612 connects the Y direction with carbon film printing technology (carbon ink), having an insulant 610 this moment between the line of induction 604 of directions X and carbon film lead 612 avoids the two to intersect that to cause short circuit, Fig. 7 be the superstructure synoptic diagram of printed circuit board (PCB) 602 behind the line of induction 606 of carbon film lead 612 connection Y directions.Though the Trackpad cost of two layer printed circuit structures is low than the Trackpad of four layer printed circuit structures, but still can't satisfy the requirement of user to price, and the carbon film lead of printing on two layer printed circuit structures, meeting loss along with use causes shorten the serviceable life of Trackpad.
Therefore, a kind of reduction Trackpad manufacturing cost, and can prolong the Trackpad of the single-layer printed circuit board structure in Trackpad life-span, be to be the institute Ji.
Summary of the invention
One of purpose of the present invention is to propose a kind of Trackpad that reduces the single-layer printed circuit board structure of manufacturing cost.
One of purpose of the present invention, other is to propose a kind of Trackpad that increases the single-layer printed circuit board structure in Trackpad serviceable life.
According to the present invention, a kind of Trackpad of single-layer printed circuit board structure, comprise a printed circuit board (PCB), the part district that has induction zone and be positioned at this induction zone periphery in its lower floor, comprise first and second direction inductor line in this induction zone, this first and second direction inductor line is connected directly to this part district respectively, do not connect in this induction zone this first or the second direction line of induction connect with the carbon film lead.
Trackpad of the present invention uses single-layer printed circuit board structure and omits the step of perforation, reduce manufacturing cost effectively, and induction zone and part district are positioned at same one deck of printed circuit board (PCB), also simplified circuit design, reach best cost benefit, in addition, with operational zone, the upper strata of circuit board as the user, can omit the step that attaches insulated coverings, and the carbon film lead that connects the line of induction can the loss along with use, reaches further minimizing manufacturing cost and prolongs the Trackpad purpose in serviceable life.
Description of drawings
Fig. 1 is the synoptic diagram of sectional view of the Trackpad of existing four layer printed circuit structures;
Fig. 2 is the synoptic diagram of sectional view of the Trackpad of existing two layer printed circuit structures;
Fig. 3 A is the synoptic diagram of the line of induction of directions X;
Fig. 3 B is the synoptic diagram of the line of induction of Y direction;
Fig. 4 is the vertical view of the printed circuit board (PCB) among Fig. 2;
Fig. 5 is the understructure synoptic diagram of the printed circuit board (PCB) among Fig. 2;
Fig. 6 is the synoptic diagram of sectional view of the Trackpad of another kind of existing two layer printed circuit structures;
Fig. 7 is the superstructure synoptic diagram of the printed circuit board (PCB) among Fig. 6;
Fig. 8 is the synoptic diagram of sectional view of Trackpad one embodiment of the single-layer printed circuit board structure according to the present invention;
Fig. 9 is the synoptic diagram of sectional view of another embodiment of Trackpad of the single-layer printed circuit board structure according to the present invention;
Figure 10 is the synoptic diagram of sectional view of the another embodiment of Trackpad of the single-layer printed circuit board structure according to the present invention; And
Figure 11 is the understructure synoptic diagram of the printed circuit board (PCB) among Fig. 8.
Symbol description:
102 printed circuit board (PCB)s
The line of induction of 104 directions Xs
106 insulation courses
The line of induction of 108 Y directions
110 insulation courses
112 ground planes
114 insulation courses
116 perforation
118 part layers
120 perforation
122 insulated coverings
202 printed circuit board (PCB)s
The line of induction of 204 directions Xs
206 insulation courses
The line of induction of 208 Y directions
210 part districts
212 perforation
214 insulated coverings
216 controllers
218 other parts
602 printed circuit board (PCB)s
The line of induction of 604 directions Xs
The line of induction of 606 Y directions
608 insulation courses
610 insulants
612 carbon film leads
614 insulated coverings
616 part layers
618 perforation
620 perforation
The sectional view of the Trackpad of 800 single-layer printed circuit board structures
802 printed circuit board (PCB)s
The line of induction of 804 directions Xs
The line of induction of 806 Y directions
808 insulants
810 carbon film leads
812 part districts
814 induction zones
816 insulated coverings
818 operational zones
820 controllers
822 other parts
The understructure figure of the printed circuit board (PCB) of the Trackpad of 900 single-layer printed circuit board structures
Embodiment
According to the present invention, a kind of sectional view 800 of Trackpad of single-layer printed circuit board structure as shown in Figure 8, lower floor at printed circuit board (PCB) 802 comprises induction zone 814 and 812 2 zones, part district that are positioned at induction zone 814 peripheries, the line of induction 804 that in induction zone 814, comprises directions X, as shown in Figure 3A, the line of induction 806 of Y direction is shown in Fig. 3 B, and one insulated coverings 816 be attached to the top of induction zone 814, as the operating area of finger or pointer.Intersect for fear of the line of induction 806 of the line of induction 804 of directions X and Y direction and to cause short circuit, the line of induction 806 of Y direction does not link together in the induction zone 814 in the present embodiment, cause the signal of Y direction in the induction zone 814 to transmit, therefore utilize the carbon film printing technology, the line of induction 806 that is communicated with the Y direction with carbon film lead 810, having an insulant 808 this moment between the line of induction 804 of directions X and carbon film lead 810 avoids the two crossingly to cause short circuit, make induction zone 814 simultaneously sensing directions X and Y direction signal and can not interfere with each other, obtain complete induced signal.Similarly, in different embodiment, the line of induction of Lian Jieing also not can be the line of induction 804 of directions X, utilize the line of induction 804 of the directions X that the carbon film printing technology will not connect to be communicated with the carbon film lead, make induction zone 814 simultaneously sensing directions X and Y direction signal and can not interfere with each other, obtain complete induced signal.In addition, the line of induction 804 and 806 of directions X and Y direction is connected directly to part district 812 respectively, has omitted the step of perforation.
In different embodiment, because induction zone 814 and part district 812 all are positioned at the lower floor of printed circuit board (PCB) 802, therefore attach the operational zone that insulated coverings 816 also can be used as finger or pointer on printed circuit board (PCB) 802 upper stratas on corresponding to the position 818 of induction zone, as shown in Figure 9, the preferably, can be directly with printed circuit board (PCB) 802 upper stratas corresponding to operational zone, the position 818 of induction zone as finger or pointer, as shown in figure 10, to save the step that attaches insulated coverings 816, and this kind is with the upper strata of the printed circuit board (PCB) Trackpad as the operational zone, the user time can directly not touch carbon film lead 810 in operation, has increased Trackpad serviceable life all
According to the present invention, understructure Figure 90 0 of a kind of printed circuit board (PCB) of Trackpad of single-layer printed circuit board structure as shown in figure 11, comprise induction zone 814 and be positioned at the part district 812 of induction zone 814 peripheries, the line of induction 806 of the Y direction after having the line of induction 804 of directions X in the induction zone 814 and being connected via carbon film lead 810, the controller 820 that the line of induction 804 and 806 of directions X and Y direction is connected directly to respectively in the assembly district 812 is connected to other part 822 again, to produce complete induced signal.
Trackpad of the present invention uses single-layer printed circuit board structure and omits the step of perforation, effectively subtracts Less manufacturing cost, and induction zone and part district are positioned at the same layer of printed circuit board (PCB), have also simplified circuit and have established Meter reaches best cost benefit, in addition, with the operating space as the user, the upper strata of circuit board, can Omit to attach the step of insulated coverings, and the carbon film lead that connects the line of induction can the loss along with use, Reach further minimizing manufacturing cost and prolong the Trackpad purpose in service life.
Claims (6)
1. the Trackpad of a single-layer printed circuit board structure comprises a printed circuit board (PCB), the part district that has induction zone and be positioned at this induction zone periphery in the lower floor of this printed circuit board (PCB).
2. Trackpad according to claim 1 more is included in and attaches an insulated coverings on this induction zone as the operational zone.
3. Trackpad according to claim 1 more is included in this printed circuit board (PCB) upper strata and attaches an insulated coverings as the operational zone corresponding to the zone of this induction zone.
4. Trackpad according to claim 1, wherein this printed circuit board (PCB) comprise one corresponding to the top area of induction zone as the operational zone.
5. Trackpad according to claim 1 wherein comprises several first and second direction inductor lines and is connected directly to this part district respectively in this induction zone.
6. Trackpad according to claim 3 more comprises with the carbon film lead being communicated with described first or the second direction line of induction that does not connect in this induction zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100568434A CN100435168C (en) | 2005-03-22 | 2005-03-22 | Touch pad with single-layer printed circuit board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100568434A CN100435168C (en) | 2005-03-22 | 2005-03-22 | Touch pad with single-layer printed circuit board structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1838151A true CN1838151A (en) | 2006-09-27 |
| CN100435168C CN100435168C (en) | 2008-11-19 |
Family
ID=37015542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100568434A Expired - Fee Related CN100435168C (en) | 2005-03-22 | 2005-03-22 | Touch pad with single-layer printed circuit board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100435168C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122224A (en) * | 2011-02-24 | 2011-07-13 | 苏州瀚瑞微电子有限公司 | Circuit module and method for touch detection |
| US8209861B2 (en) | 2008-12-05 | 2012-07-03 | Flextronics Ap, Llc | Method for manufacturing a touch screen sensor assembly |
| US8228306B2 (en) | 2008-07-23 | 2012-07-24 | Flextronics Ap, Llc | Integration design for capacitive touch panels and liquid crystal displays |
| US8274486B2 (en) | 2008-12-22 | 2012-09-25 | Flextronics Ap, Llc | Diamond pattern on a single layer |
| US8525955B2 (en) | 2012-01-31 | 2013-09-03 | Multek Display (Hong Kong) Limited | Heater for liquid crystal display |
| US9128568B2 (en) | 2008-07-30 | 2015-09-08 | New Vision Display (Shenzhen) Co., Limited | Capacitive touch panel with FPC connector electrically coupled to conductive traces of face-to-face ITO pattern structure in single plane |
| US9285929B2 (en) | 2010-03-30 | 2016-03-15 | New Vision Display (Shenzhen) Co., Limited | Touchscreen system with simplified mechanical touchscreen design using capacitance and acoustic sensing technologies, and method therefor |
| CN105988652A (en) * | 2015-02-26 | 2016-10-05 | 南昌欧菲光科技有限公司 | OGS touch screen key area structure, OSG touch screen and OGS touch screen manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188391B1 (en) * | 1998-07-09 | 2001-02-13 | Synaptics, Inc. | Two-layer capacitive touchpad and method of making same |
-
2005
- 2005-03-22 CN CNB2005100568434A patent/CN100435168C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8228306B2 (en) | 2008-07-23 | 2012-07-24 | Flextronics Ap, Llc | Integration design for capacitive touch panels and liquid crystal displays |
| US9128568B2 (en) | 2008-07-30 | 2015-09-08 | New Vision Display (Shenzhen) Co., Limited | Capacitive touch panel with FPC connector electrically coupled to conductive traces of face-to-face ITO pattern structure in single plane |
| US8209861B2 (en) | 2008-12-05 | 2012-07-03 | Flextronics Ap, Llc | Method for manufacturing a touch screen sensor assembly |
| US8507800B2 (en) | 2008-12-05 | 2013-08-13 | Multek Display (Hong Kong) Limited | Capacitive touch panel having dual resistive layer |
| US8274486B2 (en) | 2008-12-22 | 2012-09-25 | Flextronics Ap, Llc | Diamond pattern on a single layer |
| US9285929B2 (en) | 2010-03-30 | 2016-03-15 | New Vision Display (Shenzhen) Co., Limited | Touchscreen system with simplified mechanical touchscreen design using capacitance and acoustic sensing technologies, and method therefor |
| CN102122224A (en) * | 2011-02-24 | 2011-07-13 | 苏州瀚瑞微电子有限公司 | Circuit module and method for touch detection |
| CN102122224B (en) * | 2011-02-24 | 2013-02-06 | 苏州瀚瑞微电子有限公司 | Circuit module and method for touch detection |
| US8525955B2 (en) | 2012-01-31 | 2013-09-03 | Multek Display (Hong Kong) Limited | Heater for liquid crystal display |
| CN105988652A (en) * | 2015-02-26 | 2016-10-05 | 南昌欧菲光科技有限公司 | OGS touch screen key area structure, OSG touch screen and OGS touch screen manufacturing method |
| CN105988652B (en) * | 2015-02-26 | 2023-09-15 | 安徽精卓光显技术有限责任公司 | OGS touch screen key area structure, OGS touch screen and OGS touch screen manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100435168C (en) | 2008-11-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20180322 |