CN102087928A - Key unit - Google Patents
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- Publication number
- CN102087928A CN102087928A CN2009103107809A CN200910310780A CN102087928A CN 102087928 A CN102087928 A CN 102087928A CN 2009103107809 A CN2009103107809 A CN 2009103107809A CN 200910310780 A CN200910310780 A CN 200910310780A CN 102087928 A CN102087928 A CN 102087928A
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- China
- Prior art keywords
- layer
- push
- button unit
- protective layer
- tin coating
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Abstract
The invention discloses a key unit. The key unit comprises a key mat layer which is formed by silicon rubber or thermoplastic elastomer, wherein a protective layer which is formed by transparent hard resin is arranged above the key mat layer, and is provided with an upper surface which faces towards a user and a lower surface which is opposite to the upper surface in parallel; a color layer is coated on the lower surface of the protective layer; a tin coating is at least arranged between the key mat layer and the protective layer; the part, which is irradiated by laser from the upper surface of the protective layer, on the tin coating is removed to form a hollow part; and the color layer is not damaged due to the laser irradiation. The key unit can be firstly assembled with a mobile device; after all steps apart from marking are finished before shipment, the marking is performed according to the shipment place of the mobile device, so that the inventory of multi-symbol (language) edition key units is reduced.
Description
[technical field]
The present invention is about a kind of push-button unit, and this push-button unit is applied to mobile device, for example portable mobile phone.
[background technology]
Push-button unit is the vitals that constitutes such as mobile devices such as portable mobile phones, on mobile phone, setting can integrated a plurality of action buttons be protruded in a key panel surface, common this key panel is made by animi resin class material, and under action button, generally being provided with some key mats, described key mat is made by soft prepared material such as silicon rubber or thermoplastic elastomer.The widespread usage of this push-button unit brings great convenience in the information input of mobile phone for the user.And because the development of mobile phone technology, especially the progress of mobile phone slimming trend, and people's improving constantly to the mobile phone appearance requirement, this push-button unit that has the protruding-type keycap develops into gradually and is flat push-button unit fully, and promptly action button does not protrude in the key panel setting.
Aforementioned two kinds of push-button units for industry now be generally that mobile device is equipped with by key class, in production and assembling process, usually finish the surface treatment of push-button unit earlier, through the erosion of laser surface radium engraving, after forming certain pattern and literal, the metal cladding of push-button unit gives the client then with the button shipment.But the drawback of this assembling mode also day by day highlights, because mobile phone need be sold to all over the world, then need push-button unit corresponding different literal and symbol at different areas, according to production and assembly model now, when the mobile phone of an area or a kind of language version unsalable, then can cause the mobile phone huge stocks that assembled, bring loss for the mobile phone maker and seller.
Therefore, need provide a kind of push-button unit that can address the above problem.
[summary of the invention]
The purpose that the present invention will reach is the production procedure by the change push-button unit, and the stock who reduces many symbols (language) version push-button unit, client adjust the demand of radium carving symbol flexibly according to sales situation.
Push-button unit of the present invention; it comprises the key mat layer that is formed by silicon rubber or thermoplastic elastomer; the upside of key mat layer is provided with the protective layer that is formed by transparent animi resin; protective layer has a upper surface and a parallel opposing lower surface with upper surface towards the user; one color layers is coated on the lower surface of protective layer; wherein at least also be provided with a tin coating between key mat layer and the protective layer; by the irradiation of laser from the protective layer upper surface; remove on the tin coating and formed hollow-out parts by the part of laser radiation, color layers is injury-free simultaneously.
Compared with prior art, push-button unit of the present invention can be earlier and the mobile device assembling, finish before the whole shipment behind the cutting process except that mark, again according to the shipment of mobile device carry out mark, reduce the stock of many symbols (language) version push-button unit.And this push-button unit is in the mark process, and laser can form the hollow-out parts of expression numeral or symbol and not damage other each layer that laser sees through on tin coating.
[description of drawings]
The stereogram of the 1st figure after for push-button unit of the present invention assembling;
The 2nd figure is the stereogram of the assembling of push-button unit shown in the 1st figure back another one angle;
The 3rd figure is the three-dimensional exploded view of push-button unit shown in the 1st figure;
The 4th figure is that the assembling of push-button unit shown in the 1st figure back is without the section partial schematic diagram of crossing before laser thunder engraving loses;
The 5th figure is through the section partial schematic diagram after the erosion of laser thunder engraving after the assembling of push-button unit shown in the 1st figure is finished;
The 6th figure does not have diagram backlight after push-button unit shown in the 1st figure is assemblied on the mobile phone;
The 7th figure has diagram backlight after push-button unit shown in the 1st figure is assemblied on the mobile phone.
[embodiment]
Now jointly detailed elaboration is carried out in the invention, in the following description, understood more completely, will propose several concrete details in order to make the present invention in conjunction with diagram and literal.But obviously, for those skilled in the art, do not have in these details some or all, also can implement the present invention fully.In some examples, it is unclear for fear of unnecessary feature the present invention to be thickened, and for well-known treatment step, does not do too detailed elaboration.
See also Fig. 1 to Fig. 5, push-button unit of the present invention 1, is comprised: key mat layer 10, optical waveguide layer 20, protection oil reservoir 30, tin coating 40, light-absorption layer 50, color layers 60 and protective layer 70 to top layer altogether by bottom.Aforementioned each layer is superimposed on corresponding each layer successively, forms push-button unit 1 jointly.
As the bottom of push-button unit 1, key mat layer 10 is generally soft and the rubber-like plastic material is made, as: silicon rubber or thermoplastic elastomer.Key mat layer 10 can be for transparent.This plastic cement elastic layer 10 can be for plane fully, also the surface protrusion is provided with several key bodies 11 thereon, as shown in Figure 5, key body 11 is arranged according to the form of mobile phone demand, key mat layer shown in Figure 5 10 is not for there being the state before the mark, and the sign of numerical key of seeing on the finished product mobile phone or letter key is in the subsequent manufacturing processes, and the respective layer mark that covers on key mat layer 10 or keycap 11 by laser forms.As shown in Figure 2, the lower surface of plastic cement elastic layer 10 is provided with key body 11 equivalent amounts or greater than the pressing body 12 of key body quantity corresponding to the position of key body 11 is outstanding.
The upside of described key mat layer 10 is equipped with optical waveguide layer 20, this optical waveguide layer 20 is by making as PC (Merlon) or PET translucent resin materials such as (PETGs), such translucent resin material has good leaded light performance, be arranged at most of light that push-button unit 1 edge or middle light source (not shown) given out can be in optical waveguide layer 20 through total reflection and conduct.The upper and lower surface of optical waveguide layer 20 runs through the hole portion 21 that is provided with corresponding to the key body 11 of key mat layer 10, and when optical waveguide layer 20 placed on the key mat layer 10, key body 11 passed with location optical waveguide layer 20 from hole portion 21, prevents that optical waveguide layer 20 from laterally moving.Usually, optical waveguide layer 20 is bonding with the protection oil reservoir 30 that is adjacent by double faced adhesive tape.
Next the protection oil reservoir of being described 30, tin coating 40, light-absorption layer 50, color layers 60 and protective layer 70, each layer all depends on corresponding each layer by variety of way.
The protective layer 70 that is positioned at key mat layer 10 upside too much fades owing to rubbing in order to protection push-button unit 1; protective layer 70 is formed by the ultraviolet hardening resin of the polyurethanes with abrasion resistance properties usually; when forming the required protective layer 70 of push-button unit 1; ultraviolet hardening resin need be injected the mould (not shown) identical with protective layer 70 shape and structures; by the UV-irradiation in the certain hour scope; make the ultraviolet hardening resin sclerosis in the mould and form protective layer 70, in mould, take out protective layer 70.Protective layer 70 have one towards user's upper surface 71 with one with upper surface 71 parallel opposing lower surface 72.
The lower surface of color layers 60 is provided with light-absorption layer 50, and light-absorption layer 50 is transparent black ink or the similar material that can play absorption effects are coated with the surface that invests institute's corresponding color layer 60 and form.
Light-absorption layer 50 is coated with and invests after the color layers 60; by any one mode in physical vapour deposition (PVD), sputter or the multicoating; metallic tin is plated in light-absorption layer 50 forms tin coating 40 with color layers 60 facing surfaces; the lower surface of tin coating 40 is coated with protection oil reservoir 30, and protection oil reservoir 30 can prevent that tin coating 40 is exposed in the air for a long time and the oxidation that takes place or the phenomenon of physical instability.Laser by certain energy on the tin coating 40 carries out the mode of radium engraving erosion, penetrates tin coating 40 and forms hollow-out parts 41, and hollow-out parts 41 is push-button unit 1 pairing numeral, pattern or symbol (for example 1,2,3,4,5,6,7,8,9, #, * etc.).The metal material that tin coating 40 among the present invention is plated is tin (Sn), according to the difference of using, also can be zinc-plated and the sintetics of other metals, for example: lead, antimony etc.The objective of the invention is to reduce the stock, after push-button unit 1 assembling is finished, according to the shipment of mobile phone ground push-button unit 1 is carried out the erosion of laser radium engraving, produce the symbol and the literal of corresponding country on push-button unit 1, this mode of production can be good at realizing the object of the invention.Because the fusing point of tin is lower; the alloy product that adopts tin or tin and other metals is as coating material; after push-button unit 1 assembling finishes; with the front of the laser in a branch of at least particular range of wavelengths (the laser spot energy reaches the fusing point of tin just) from push-button unit 1, promptly etching is carried out to tin coating 40 in the surface of protective layer 70.And to tin coating 40 etchings the time, all not Stimulated Light etching influences of other each layer (for example light-absorption layer 50, color layers 60 and protective layer 70) that seen through by laser.Pass through said method, make after push-button unit 1 and mobile device are assembled, carry out laser marking again, form corresponding numeral, pattern or symbol according to the market of mobile device, reduce the stock of many symbols (language) version push-button unit, guaranteed the instant assembling of push-button unit 1.
This mode of production can also produce another keyboard display effect.When no when backlight, the user from the top view of push-button unit 1 to be the color of color layers 60, have only mobile phone to open when backlight, the user can be from the top view of push-button unit 1 to the numeral that is formed by tin coating 40, pattern and symbol.
Technology contents of the present invention and technical characterstic have disclosed as above; yet those of ordinary skill in the art still may carry out all replacement and modifications that does not deviate from spirit of the present invention based on teaching of the present invention and announcement; for example: tin directly is plated in the lower surface 72 of protective layer 70, perhaps saves some inessential layer in the push-button unit 1 etc.Therefore, protection scope of the present invention should be not limited to the content that execution mode discloses, and comprises various do not deviate from replacement of the present invention and modifications, is the present patent application claim and contains.
Claims (8)
1. push-button unit; it comprises the key mat layer that is formed by silicon rubber or thermoplastic elastomer; one side of key mat layer is provided with the protective layer that is formed by transparent animi resin; protective layer has a upper surface and a parallel opposing lower surface with upper surface towards the user; one color layers is coated on the lower surface of protective layer; it is characterized in that: at least also be provided with a tin coating between key mat layer and the protective layer; by the irradiation of the laser in the particular range of wavelengths from the protective layer upper surface; remove on the tin coating and formed hollow-out parts by the part of laser radiation, color layers is not because of the laser radiation damaged simultaneously.
2. push-button unit as claimed in claim 1 is characterized in that: described tin coating is to be plated on the color layers by any one mode in physical vapour deposition (PVD), sputter or the multicoating.
3. push-button unit as claimed in claim 1 is characterized in that: described color layers lower surface is coated with a light-absorption layer, and tin coating is to be plated on the light-absorption layer by any one mode in physical vapour deposition (PVD), sputter or the multicoating.
4. push-button unit as claimed in claim 3 is characterized in that: described light-absorption layer is the semitransparent black color ink.
5. push-button unit as claimed in claim 1 is characterized in that: described hollow-out parts is the set of some hollow out points, and hollow-out parts constitutes numeral, pattern or symbol.
6. as any described push-button unit in the claim 1 to 5, it is characterized in that: the lower surface of described tin coating is coated with the protection oil reservoir that prevents the tin coating oxidation.
7. push-button unit as claimed in claim 6 is characterized in that: also be provided with an optical waveguide layer between key mat layer and the protective layer, this optical waveguide layer is by making as PC (Merlon) or PET translucent resin materials such as (PETGs).
8. push-button unit as claimed in claim 7 is characterized in that: described optical waveguide layer adheres to and each adjacent layer of optical waveguide layer top by double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310780 CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310780 CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087928A true CN102087928A (en) | 2011-06-08 |
| CN102087928B CN102087928B (en) | 2013-06-12 |
Family
ID=44099658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910310780 Expired - Fee Related CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102087928B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832070A (en) * | 2012-08-24 | 2012-12-19 | 张文嵛 | Luminous keyboard and manufacturing process for keycap of luminous keyboard |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911317A (en) * | 1997-08-26 | 1999-06-15 | Silitek Corporation | Light permeable metal plated rubber key |
| JPH11162284A (en) * | 1997-11-28 | 1999-06-18 | Shin Etsu Polymer Co Ltd | Push-button switch and cover member for push-button switch |
| JP2000306453A (en) * | 1999-02-19 | 2000-11-02 | Shin Etsu Polymer Co Ltd | Push-button switch structural body and its manufacture |
| KR20020080027A (en) * | 2001-04-10 | 2002-10-23 | 김영호 | Manufacturing Method of Cellular Phone Keypad |
| CN2687816Y (en) * | 2004-03-16 | 2005-03-23 | 东莞大洋硅胶制品有限公司 | Button with surface electric-plated metal |
| WO2007032900A2 (en) * | 2005-08-29 | 2007-03-22 | Sinclair Systems International, Llc | Multi-layer, light markable media and method and apparatus for using same |
| CN201196915Y (en) * | 2008-01-29 | 2009-02-18 | 毅嘉科技股份有限公司 | Key structure with stereo graphic pattern |
| JP2009245899A (en) * | 2008-03-31 | 2009-10-22 | Sunarrow Ltd | Transparent key, key sheet, and method of forming the key sheet |
-
2009
- 2009-12-03 CN CN 200910310780 patent/CN102087928B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911317A (en) * | 1997-08-26 | 1999-06-15 | Silitek Corporation | Light permeable metal plated rubber key |
| JPH11162284A (en) * | 1997-11-28 | 1999-06-18 | Shin Etsu Polymer Co Ltd | Push-button switch and cover member for push-button switch |
| JP2000306453A (en) * | 1999-02-19 | 2000-11-02 | Shin Etsu Polymer Co Ltd | Push-button switch structural body and its manufacture |
| KR20020080027A (en) * | 2001-04-10 | 2002-10-23 | 김영호 | Manufacturing Method of Cellular Phone Keypad |
| CN2687816Y (en) * | 2004-03-16 | 2005-03-23 | 东莞大洋硅胶制品有限公司 | Button with surface electric-plated metal |
| WO2007032900A2 (en) * | 2005-08-29 | 2007-03-22 | Sinclair Systems International, Llc | Multi-layer, light markable media and method and apparatus for using same |
| CN201196915Y (en) * | 2008-01-29 | 2009-02-18 | 毅嘉科技股份有限公司 | Key structure with stereo graphic pattern |
| JP2009245899A (en) * | 2008-03-31 | 2009-10-22 | Sunarrow Ltd | Transparent key, key sheet, and method of forming the key sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832070A (en) * | 2012-08-24 | 2012-12-19 | 张文嵛 | Luminous keyboard and manufacturing process for keycap of luminous keyboard |
| CN102832070B (en) * | 2012-08-24 | 2016-06-01 | 张文嵛 | The key cap manufacturing process of illuminated keyboard and illuminated keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102087928B (en) | 2013-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130612 Termination date: 20191203 |