CN104134564A - Notebook computer keyboard lamp bar and manufacturing method thereof - Google Patents
Notebook computer keyboard lamp bar and manufacturing method thereof Download PDFInfo
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- CN104134564A CN104134564A CN201410384018.6A CN201410384018A CN104134564A CN 104134564 A CN104134564 A CN 104134564A CN 201410384018 A CN201410384018 A CN 201410384018A CN 104134564 A CN104134564 A CN 104134564A
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- silver
- lamp bar
- notebook computer
- keyboard
- insulating barrier
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Abstract
The invention relates to a notebook computer keyboard lamp bar and a manufacturing method thereof. The lamp bar comprises a first insulation layer, a silver conducting layer and a second insulation layer, wherein the first insulation, the silver conducting layer and the second insulation layer are stacked from bottom to top. The silver conducting layer is composed of a plurality of connected silver wires. A plurality of light emitting diodes electrically connected with the silver wires are embedded into the second insulation layer. The first insulation layer and the second insulation layer are PET layers. According to the notebook computer keyboard lamp bar, on the one hand, the low-cost PET materials replace expensive polyimide materials to manufacture the first insulation layer and the second insulation layer, and therefore the cost of the lamp bar is effectively reduced; on the other hand, the silver conducting layer is composed of the connected silver wires which are electrically connected with the light emitting diodes, traditional copper foil is replaced with the silver conducting layer, no micro-resistor matched with the light emitting diodes needs to be arranged, in this way, the cost can be easily reduced, and the manufacturing technology of the lamp bar can be greatly simplified.
Description
Technical field
The invention belongs to electronic switch field, relate to a kind of parts of keyboard of notebook computer, be specifically related to a kind of keyboard of notebook computer lamp bar and preparation method thereof.
Background technology
Existing keyboard of notebook computer lamp bar is to be prepared from by multiple light-emitting diodes (english abbreviation is LED) are set on flexible PCB (english abbreviation is FPC).Due to the high conductivity of flexible PCB, therefore must the micro-resistance being electrically connected with light-emitting diode be set with light-emitting diode adjacent, to adapt to the different requirements of different clients for flexible circuit board parameter, thereby expand its range of application.
Flexible PCB is a kind of printed circuit board (PCB) of making as base material taking polyimides or polyester film, has that distribution density is high, lightweight, a feature such as thin thickness, bending are good.Its basic composition unit mainly contains Copper Foil, substrate film, glue, coverlay protection film, strippable paper, stiffening plate and electromagnetic shielding film (english abbreviation is EMI) etc.So sandwich construction will form complete flexible PCB and just must adopt technique complexity such as plating, development, graphic plating, heavy nickel gold, etching, causes it with high costs.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of simple in structure, keyboard of notebook computer lamp bar that cost is low.
For achieving the above object, the technical solution adopted in the present invention is: a kind of keyboard of notebook computer lamp bar, it comprises the first insulating barrier, silver conductive layer and second insulating barrier of stacked setting from bottom to top, described silver conductive layer is the some silver-colored lines that are connected, on the second described insulating barrier, be embedded with the multiple light-emitting diodes that are electrically connected with described silver-colored line, the first described insulating barrier and the second insulating barrier are pet layer.
Optimally, described silver-colored line is to form with silk screen printing brushing after silver powder and mixed with resin, and described silver powder and the mass ratio of resin are 2 ~ 1:1.
Further, described silver powder particle diameter is 5 ~ 15 microns.
Further, described resin is phenolic resins, polyurethane or acrylic resin.
Further, the width of described silver-colored line is 0.5 ~ 2 millimeter, and thickness is 5 ~ 20 microns.
Another object of the present invention is to provide the preparation method of above-mentioned keyboard of notebook computer lamp bar, comprises the following steps:
(a) form the some silver-colored lines that are connected at the mixed liquor of the first insulating barrier upper surface brushing silver powder and resin, and arrange glue in the region that does not cover silver-colored line;
(b) on the second insulating barrier, stamp out multiple through holes more bigger than light-emitting diode area;
(c) the second insulating barrier is fitted in to the first insulating barrier upper surface and forms lamination layer structure;
(d) the lamination layer structure stamp described in step (c) is become to keyboard light strip, through hole diode installed is electrically connected itself and silver-colored line subsequently.
Optimally, in step (a), the mixed liquor of described silver powder and resin be under stirring condition in mass ratio 2 ~ 1:1 during silver powder is added to resin gradually, make.
Further, described mixing speed is 50 ~ 1000 revs/min, and the speed that adds of described silver powder is 100 ~ 1000 gram/minute.
Optimally, described step (b) is synchronizeed and is carried out with step (a).
Optimally, in step (a), the width of described silver-colored line and thickness regulate according to the required resistance of silver-colored line.
Because technique scheme is used, the present invention compared with prior art has following advantages: keyboard of notebook computer lamp bar of the present invention, utilize cheap PET material to replace expensive polyimide material to make the first insulating barrier and the second insulating barrier on the one hand, effectively reduce the cost of lamp bar; Silver conductive layer is the some silver-colored lines that are connected on the other hand, itself and light-emitting diode are electrically connected, replace traditional Copper Foil and light-emitting diode no longer to need to arrange micro-resistance of coupling, so be both conducive to reduce costs, be beneficial to again the manufacture craft of significantly simplifying lamp bar.
Brief description of the drawings
The structural representation that accompanying drawing 1 is keyboard of notebook computer lamp bar of the present invention;
Accompanying drawing 2 is the sectional view of accompanying drawing 1;
Wherein, 1, the first insulating barrier; 2, silver conductive layer; 3, the second insulating barrier; 4, light-emitting diode.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is elaborated.
The first embodiment
Keyboard of notebook computer lamp bar as depicted in figs. 1 and 2, mainly comprises the first insulating barrier 1, silver conductive layer 2 and second insulating barrier 3 of stacked setting from bottom to top.The first insulating barrier 1 and the second insulating barrier 3 adopt than polyimide film cheapness many PET(PETGs) material makes, this effectively reduces the cost of lamp bar substrate, silver conductive layer 2 is the some silver-colored lines that are connected, and they can be designed to different patterns as required, light-emitting diode 4 has several, they are embedded on the second insulating barrier 3 and are electrically connected with silver-colored line, in the time of silver-colored line conduction, light-emitting diode 4 can be luminous, utilize so silver-colored line to replace traditional Copper Foil to conduct electricity, because the electric conductivity of silver-colored line is weaker than Copper Foil, therefore can regulate length and the thickness of silver-colored line to regulate its resistance value, the width of silver line is preferably 0.5 ~ 2 millimeter, thickness is preferably 5 ~ 20 microns, thereby no longer need, to light-emitting diode coupling, corresponding micro-resistance is set, so be both conducive to reduce costs, be beneficial to again the manufacture craft of significantly simplifying lamp bar.
Silver line is to form with silk screen printing brushing after silver powder and resin (being preferably phenolic resins, polyurethane or acrylic resin etc.) mix.The resistance value that also can regulate silver-colored line self by controlling the mass ratio of silver powder and resin, the resistance value of silver-colored line reduces along with the increase of quality of cathode silver, increases along with the increase of resin quality.In the present embodiment, the mass ratio of silver powder and resin is preferably 2 ~ 1:1, and it is not unalterable needing the mass ratio of width, thickness and the silver powder/resin of the silver-colored line of explanation, and the adjusting that need to adapt to according to client's requirement.The particle diameter of silver powder is preferably 5 ~ 15 microns, in the time that the particle diameter of silver powder is excessive, causes the gap between particulate silver to become large, easily cause opening circuit of silver-colored line, and reaches too small being difficult on grinding technics of silver powder particle diameter.
The second embodiment
The present embodiment provides the preparation method of keyboard of notebook computer lamp bar in the first embodiment, comprises the following steps:
First under stirring condition (mixing speed is preferably 50 ~ 1000 revs/min) in mass ratio (silver powder is preferably 2 ~ 1:1 with resin quality ratio) during silver powder is added to resin gradually, make and disperse to form mixed liquor, the speed that adds of silver powder will suitably be controlled, be preferably 100 ~ 1000 gram/minute, add speed too fast, cause the dispersion of silver powder in resin inhomogeneous, affect the resistance value of follow-up silver-colored line; Add speed too slow, reduced production efficiency.Subsequently by this mixed liquor brushing at the upper surface of the first insulating barrier 1 the some bullion lines to form certain pattern and to be connected, the width of silver line and thickness should regulate according to client's requirement (resistance value that when use, silver line possesses), the width of silver line is preferably 0.5 ~ 2 millimeter, and thickness is preferably 5 ~ 20 microns; And arrange that in the region that does not cover silver-colored line glue, glue can adopt the solid gum of thermosensitive type or the mode brushing liquid glue of employing silk screen printing.
On the second insulating barrier 3, stamp out multiple through holes more bigger than light-emitting diode area, this step can be carried out or synchronously carry out before above-mentioned steps, according to actual production need to carry out the adjusting of science, to enhance productivity, reduce the unnecessary loss of time.
Then, the second insulation 3 laminatings are combined in to the first insulating barrier 1 upper surface is pressed or hot pressing forms lamination layer structure.Finally this lamination layer structure is made under the effect of plastic former to keyboard light strip, and at through hole diode installed, itself and silver-colored line are electrically connected.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a keyboard of notebook computer lamp bar, it is characterized in that: it comprises the first insulating barrier, silver conductive layer and second insulating barrier of stacked setting from bottom to top, described silver conductive layer is the some silver-colored lines that are connected, on the second described insulating barrier, be embedded with the multiple light-emitting diodes that are electrically connected with described silver-colored line, the first described insulating barrier and the second insulating barrier are pet layer.
2. keyboard of notebook computer lamp bar according to claim 1, is characterized in that: described silver-colored line is to form with silk screen printing brushing after silver powder and mixed with resin, and described silver powder and the mass ratio of resin are 2 ~ 1:1.
3. keyboard of notebook computer lamp bar according to claim 2, is characterized in that: described silver powder particle diameter is 5 ~ 15 microns.
4. keyboard of notebook computer lamp bar according to claim 2, is characterized in that: described resin is phenolic resins, polyurethane or acrylic resin.
5. keyboard of notebook computer lamp bar according to claim 2, is characterized in that: the width of described silver-colored line is 0.5 ~ 2 millimeter, thickness is 5 ~ 20 microns.
6. a preparation method for arbitrary described keyboard of notebook computer lamp bar in claim 1 to 5, is characterized in that, comprises the following steps:
(a) form the some silver-colored lines that are connected at the mixed liquor of the first insulating barrier upper surface brushing silver powder and resin, and arrange glue in the region that does not cover silver-colored line;
(b) on the second insulating barrier, stamp out multiple through holes more bigger than light-emitting diode area;
(c) the second insulating barrier is fitted in to the first insulating barrier upper surface and forms lamination layer structure;
(d) the lamination layer structure stamp described in step (c) is become to keyboard light strip, at through hole diode installed, itself and silver-colored line are electrically connected subsequently.
7. the preparation method of keyboard of notebook computer lamp bar according to claim 6, is characterized in that: in step (a), the mixed liquor of described silver powder and resin be under stirring condition in mass ratio 2 ~ 1:1 during silver powder is added to resin gradually, make.
8. the preparation method of keyboard of notebook computer lamp bar according to claim 7, is characterized in that: described mixing speed is 50 ~ 1000 revs/min, the speed that adds of described silver powder is 100 ~ 1000 gram/minute.
9. the preparation method of keyboard of notebook computer lamp bar according to claim 6, is characterized in that: described step (b) is synchronizeed and carried out with step (a).
10. the preparation method of keyboard of notebook computer lamp bar according to claim 6, is characterized in that: in step (a), the width of described silver-colored line and thickness regulate according to the required resistance of silver-colored line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384018.6A CN104134564A (en) | 2014-08-06 | 2014-08-06 | Notebook computer keyboard lamp bar and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384018.6A CN104134564A (en) | 2014-08-06 | 2014-08-06 | Notebook computer keyboard lamp bar and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104134564A true CN104134564A (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410384018.6A Pending CN104134564A (en) | 2014-08-06 | 2014-08-06 | Notebook computer keyboard lamp bar and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN104134564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075864A1 (en) * | 2015-11-04 | 2017-05-11 | 昆山兴协和光电科技有限公司 | Led decorative strip, manufacturing method thereof, and backlight module and keyboard using same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2346309A2 (en) * | 2010-01-15 | 2011-07-20 | LG Innotek Co., Ltd. | Light emitting module, backlight unit, and display apparatus |
| CN202435709U (en) * | 2011-12-19 | 2012-09-12 | 达昌电子科技(苏州)有限公司 | Light bar with light-emitting components |
| CN202697035U (en) * | 2012-08-01 | 2013-01-23 | 田茂福 | LED circuit board with conducting adhesive lines, and LED lamp band |
| CN204045459U (en) * | 2014-08-06 | 2014-12-24 | 昆山兴协和光电科技有限公司 | A kind of keyboard of notebook computer lamp bar |
-
2014
- 2014-08-06 CN CN201410384018.6A patent/CN104134564A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2346309A2 (en) * | 2010-01-15 | 2011-07-20 | LG Innotek Co., Ltd. | Light emitting module, backlight unit, and display apparatus |
| CN202435709U (en) * | 2011-12-19 | 2012-09-12 | 达昌电子科技(苏州)有限公司 | Light bar with light-emitting components |
| CN202697035U (en) * | 2012-08-01 | 2013-01-23 | 田茂福 | LED circuit board with conducting adhesive lines, and LED lamp band |
| CN204045459U (en) * | 2014-08-06 | 2014-12-24 | 昆山兴协和光电科技有限公司 | A kind of keyboard of notebook computer lamp bar |
Non-Patent Citations (2)
| Title |
|---|
| 贾智勇等: "《电工基础知识》", 31 January 2013, 中国电力出版社 * |
| 郑德海: "《现代网印油墨选择与使用手册》", 31 December 2000, 中国轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075864A1 (en) * | 2015-11-04 | 2017-05-11 | 昆山兴协和光电科技有限公司 | Led decorative strip, manufacturing method thereof, and backlight module and keyboard using same |
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Application publication date: 20141105 |
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