CN201142370Y - Circuit connecting structure of touch panel - Google Patents
Circuit connecting structure of touch panel Download PDFInfo
- Publication number
- CN201142370Y CN201142370Y CNU2007201962894U CN200720196289U CN201142370Y CN 201142370 Y CN201142370 Y CN 201142370Y CN U2007201962894 U CNU2007201962894 U CN U2007201962894U CN 200720196289 U CN200720196289 U CN 200720196289U CN 201142370 Y CN201142370 Y CN 201142370Y
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- Prior art keywords
- sensing unit
- circuit
- circuit layer
- touch pad
- connection structure
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Abstract
The utility model provides a circuit connection structure for a touch pad. The circuit connection structure comprises a first circuit layer and a second circuit layer arranged above the first circuit layer. An induction zone is arranged in the middle part of the second circuit layer. The induction zone comprises a plurality of first induction units, a plurality of second induction units, a plurality of third induction units and a plurality of fourth induction units. The first induction units and the second induction units are alternately interconnected on the second circuit layer to form a sensing circuit along an X direction. Connecting holes are disposed in the third induction unit and the fourth induction unit, the third induction unit and the fourth induction unit are electrically connected on the first circuit layer via the connecting holes, and the fourth induction unit is further electrically connected with the next third induction unit on the second circuit layer. The third induction unit and the fourth induction unit are alternately interconnected to form a sensing circuit along a Y direction. The utility model realizes the circuit connection of the sensing circuit in the X direction by the distribution of the induction units, and realizes the circuit connection of the sensing circuit in the Y direction by the connecting holes. Furthermore, the induction units are more refined.
Description
Technical field
The utility model relates to a kind of circuit connection structure, relates in particular to a kind of circuit connection structure of touch pad.
Background technology
Touch pad appears at early 1990s as a kind of new human-computer interaction technology, and be used in more and more in computer, portable terminal and the various handheld device, the user only need touch touch pad gently just can realize the operation to system, thereby, can save the operation to system such as the input equipment of using keyboard, mouse, make man-machine interaction more directly perceived, convenient, touch pad has become the input equipment of the easiest current man-machine interaction, is applied in the plurality of devices.
Conventional touch pad is two-layer printed circuit board arrangement, comprises first circuit layer, is located between second circuit layer, first circuit layer and the second circuit layer on first circuit layer and is provided with insulating barrier, and the control element of touch pad is set on first circuit layer; Several sensing units are set on the second circuit layer, the sensing unit distribution that assumes diamond in shape, the circuit of sensing unit directions X connects by the interconnection of the plain conductor between the sensing unit to be realized, the circuit of the Y direction of sensing unit connects to be realized by the carbon film lead is set above the second circuit layer separately; Because the carbon film typography can cause the electric conductivity between every carbon film inconsistent, and will cause the raising of touch pad fraction defective.Thereby, based on the needs that the circuit connection structure of touch pad is updated, how on the basis that the carbon film lead is not set, realize that the X of the sensing unit of touch pad, the circuit of Y direction connect, be the problem of the common concern of those skilled in the art institute.
The utility model content
The purpose of this utility model, be to provide a kind of circuit connection structure of touch pad, wire structures by the second circuit layer connects with the circuit along X, Y direction of realizing sensing unit in conjunction with connecting hole, has saved the technology of printing carbon film, and sensing unit is more become more meticulous.
For achieving the above object, the utility model provides a kind of circuit connection structure of touch pad, comprising: first circuit layer and be located at the second circuit layer of first circuit layer top; Second circuit layer middle part is provided with induction zone, and induction zone comprises several first sensing units, second sensing unit, the 3rd sensing unit and the 4th sensing unit; First sensing unit and second sensing unit replace the sensing circuit of interconnection formation along directions X on the second circuit layer; Be provided with connecting hole in the 3rd sensing unit and the 4th sensing unit, the 3rd sensing unit and the 4th sensing unit electrically connect on first circuit layer by connecting hole, the 4th sensing unit electrically connects on the second circuit layer with next the 3rd sensing unit again, and the alternate interconnection of the 3rd sensing unit and the 4th sensing unit forms the sensing circuit along the Y direction.
Described first sensing unit and second sensing unit are symmetrical arranged, and are isosceles triangle; The drift angle of first sensing unit is towards the right side, and second sensing unit is opposite with the direction of first sensing unit.
Described the 3rd sensing unit and the 4th sensing unit are symmetrical arranged, and are isosceles triangle; The drift angle of the 3rd sensing unit down, the 4th sensing unit is opposite with the direction of the 3rd sensing unit.
Described first, second, third, fourth sensing unit constitutes a square or rectangular unit.
The beneficial effects of the utility model are: at first, layout by sensing unit realizes that sensing circuit connects along the circuit of directions X, and by the circuit connection of connecting hole realization sensing circuit along the Y direction is set, the drilling technology that the existing printed circuit board (PCB) maturation of employing is set of connecting hole, saved the technology of printing carbon film, thereby can effectively save cost of manufacture, and, sensing unit is isosceles triangle, more become more meticulous compared to its setting of existing rhombus sensing unit, simplify, optimized the touch pad structure.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the schematic diagram of the circuit connection structure of the utility model touch pad;
Fig. 2 is the schematic diagram of circuit connection structure of the second circuit layer of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Shown in Fig. 1-2, the circuit connection structure of touch pad of the present utility model comprises: first circuit layer 2 and be located at the second circuit layer 6 of first circuit layer, 2 tops; Second circuit layer 6 middle part are provided with induction zone 62, and induction zone 62 comprises several first sensing units 63, second sensing unit 64, the 3rd sensing unit 65 and the 4th sensing unit 66; First sensing unit 63 and second sensing unit 64 replace the sensing circuit of interconnection formation along directions X on first circuit layer 2; Be provided with connecting hole 67 in the 3rd sensing unit 65 and the 4th sensing unit 66, the 3rd sensing unit 65 and the 4th sensing unit 66 electrically connect on first circuit layer 2 by connecting hole 5, the 4th sensing unit 66 electrically connects on second circuit layer 6 with next the 3rd sensing unit 65 again, and the alternate interconnection of the 3rd sensing unit 65 and the 4th sensing unit 66 forms the sensing circuit along the Y direction.
Be provided with insulating barrier 4 between first circuit layer 2 and the second circuit layer 6; Connecting hole 67 passes the insulating barrier 4 and first circuit layer 2, is filled with electric conducting material in the connecting hole 67, and connecting hole 67 electrically connects on first circuit layer 2, and the 3rd sensing unit 65 and the 4th sensing unit 66 electrically connect by this connecting hole 67.The setting of connecting hole 67 can be adopted the drilling technology of existing printed circuit board (PCB) and make.
The beneficial effects of the utility model are: the layout by sensing unit realizes that sensing circuit is along directions X Circuit connect, and realize that by connecting hole is set sensing circuit connects connecting hole along the circuit of Y-direction The drilling technology that adopts existing printed circuit board (PCB) maturation is set, saved the technology of printing carbon film, because of And can effectively save cost of manufacture, and sensing unit is isosceles triangle, compared to existing rhombus Its setting of sensing unit more becomes more meticulous, and simplifies, optimized the touch pad structure.
Claims (8)
1, a kind of circuit connection structure of touch pad is characterized in that, comprising: first circuit layer and be located at the second circuit layer of first circuit layer top; Second circuit layer middle part is provided with induction zone, and induction zone comprises several first sensing units, second sensing unit, the 3rd sensing unit and the 4th sensing unit; First sensing unit and second sensing unit replace the sensing circuit of interconnection formation along directions X on the second circuit layer; Be provided with connecting hole in the 3rd sensing unit and the 4th sensing unit, the 3rd sensing unit and the 4th sensing unit electrically connect on first circuit layer by connecting hole, the 4th sensing unit electrically connects on the second circuit layer with next the 3rd sensing unit again, and the alternate interconnection of the 3rd sensing unit and the 4th sensing unit forms the sensing circuit along the Y direction.
2, the circuit connection structure of touch pad as claimed in claim 1 is characterized in that, first sensing unit and second sensing unit are symmetrical arranged, and are isosceles triangle.
3, the circuit connection structure of touch pad as claimed in claim 2 is characterized in that, the drift angle of first sensing unit is towards the right side, and second sensing unit is opposite with the direction of first sensing unit.
4, the circuit connection structure of touch pad as claimed in claim 3 is characterized in that, the 3rd sensing unit and the 4th sensing unit are symmetrical arranged, and are isosceles triangle.
5, the circuit connection structure of touch pad as claimed in claim 4 is characterized in that, the drift angle of the 3rd sensing unit down, the 4th sensing unit is opposite with the direction of the 3rd sensing unit.
6, the circuit connection structure of touch pad as claimed in claim 5 is characterized in that, first, second, third, fourth sensing unit constitutes a square shaped cells.
7, the circuit connection structure of touch pad as claimed in claim 5 is characterized in that, first, second, third, fourth sensing unit constitutes a rectangular elements.
8, the circuit connection structure of touch pad as claimed in claim 1 is characterized in that, is provided with insulating barrier between first circuit layer and the second circuit layer; Connecting hole passes the insulating barrier and first circuit layer, is filled with electric conducting material in the connecting hole, and connecting hole electrically connects on first circuit layer, and the 3rd sensing unit and the 4th sensing unit electrically connect by this connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201962894U CN201142370Y (en) | 2007-12-25 | 2007-12-25 | Circuit connecting structure of touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201962894U CN201142370Y (en) | 2007-12-25 | 2007-12-25 | Circuit connecting structure of touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142370Y true CN201142370Y (en) | 2008-10-29 |
Family
ID=40070080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201962894U Expired - Fee Related CN201142370Y (en) | 2007-12-25 | 2007-12-25 | Circuit connecting structure of touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201142370Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265251A (en) * | 2009-02-13 | 2011-11-30 | 尖端芯片株式会社 | Touch screen input apparatus |
-
2007
- 2007-12-25 CN CNU2007201962894U patent/CN201142370Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265251A (en) * | 2009-02-13 | 2011-11-30 | 尖端芯片株式会社 | Touch screen input apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20131225 |