CN101929656A - Key light guide assembly and key backlight module thereof - Google Patents
Key light guide assembly and key backlight module thereof Download PDFInfo
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- CN101929656A CN101929656A CN2009101499073A CN200910149907A CN101929656A CN 101929656 A CN101929656 A CN 101929656A CN 2009101499073 A CN2009101499073 A CN 2009101499073A CN 200910149907 A CN200910149907 A CN 200910149907A CN 101929656 A CN101929656 A CN 101929656A
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- backlight module
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- mobile phone
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- guide assembly
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Abstract
The invention relates to a key light guide assembly and a key backlight module thereof, wherein the key light guide assembly comprises a macromolecular base material and a UV (Ultraviolet) hardened material, and the UV hardened material is located on the surface of the macromolecular base material and is provided with a plurality of polyhedron microstructures.
Description
Technical field
The invention relates to a kind of leaded light component, and particularly relevant for a kind of leaded light component that is used for key backlight module.
Background technology
Along with the arriving of information age, mobile phone communication products such as (or being called mobile phone) has become the most frequently used communication tool at present, is the user demand in response to the consumer, and mobile phone is also gradually towards compact.For in response to this trend, the design of the backlight module of mobile phone button seems more important, not only will reach the design of slimming, also will take into account the sense of touch of pushing.
Aspect the key-press module of mobile phone, in order to make the top font shinny, light source (for example light emitting diode) is placed in general zone that need be luminous below key-press module, and utilize leaded light component to make the light scattering, the light of scattering reaches the top font and makes the top font shinny, yet tradition uses rubber as leaded light component, its light transmittance is poor, make light source can't transmit zone far away, so need many light emitting diodes of collocation (LED) usually to reach illumination effect, yet plurality of LEDs often causes electrisity consumption to increase, and therefore, many dealers are numerous and confused to propose various key light guide assemblies to solve the above-mentioned problem of mentioning.
Korean Patent KR100744324 proposes a kind of mobile phone key backlight module, and it uses the material of silica gel as leaded light component, and collocation diffusion micro-structural reaches the key-press backlight effect.But silica gel needs long-time baking and sclerosis, so volume production speed is slower.
Korean Patent KR 10-0659699 proposes a kind of mobile phone key backlight module, and it is coated with phosphor material powder on the leaded light component specific region, and collocation LED uses, to form key-press backlight.Yet the processing procedure of fluorescent material is complicated and expensive, is not inconsistent market trend equally.
Therefore, industry is needed a kind of mobile phone push-button light guiding assembly of exploitation badly, to solve the problem of above-mentioned experience.
Summary of the invention
The object of the present invention is to provide a kind of key light guide assembly and key backlight module thereof, not only reach the design of slimming, take into account the sense of touch of pushing simultaneously, and effective leaded light, the light service efficiency is improved, reduce the power consumption of light source.
The invention provides a kind of key light guide assembly, comprising: a polymer base material; And a UV hardened material, be positioned at this polymer base material surface, wherein this UV hardened material has a plurality of polyhedron micro-structurals.
The present invention provides a kind of mobile phone key backlight module in addition, comprising: a button pattern means; One leaded light component, be positioned under this button pattern means, wherein this leaded light component comprises a polymer base material and a UV hardened material, and wherein this polymer base material has a first surface and second surface, and this UV hardened material is positioned on this first surface and has a plurality of polyhedron micro-structurals; One reflector plate is positioned under this leaded light component; And a light source, be positioned at the side of this leaded light component.
In sum, the advantage of key light guide assembly of the present invention and key backlight module thereof is:
(1) utilizes polymer base material collocation UV hardened material, can reach the demand of slimming, and, can produce different pressing touch by adjusting the thickness proportion of polymer base material and UV hardened material.
(2) the effective leaded light of the design of polyhedron micro-structural improves the light service efficiency, reduces the power consumption of light source.
(3) leaded light component is to utilize scroll bar continous way (Roll to Roll) processing procedure preparation and get, and volume production meets market trend fast.
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended accompanying drawing, be described in detail below:
Description of drawings
Fig. 1 a is a vertical view, in order to the key light guide assembly of explanation one embodiment of the invention;
Fig. 1 b is a vertical view, in order to the key light guide assembly of explanation another embodiment of the present invention;
Fig. 2 is a vertical view, in order to key light guide module of the present invention to be described.
[primary clustering symbol description]
11～light
12～leaded light component
12 '～leaded light component
12a～polymer base material
12a '～polymer base material
12b～UV hardened material
12b '～UV hardened material
13～observer
14～polyhedron micro-structural
14 '～polyhedron micro-structural
16～light source
20～button pattern position
28～reflector plate
121～polymer base material first surface
123～polymer base material second surface
The specific embodiment
The invention provides a kind of leaded light component 12, see also Fig. 1 a, it mainly is made up of polymer base material 12a and UV hardened material 12b, wherein polymer base material 12a comprises PET (polyethyleneterephthalate, PET), Merlon (polycarbonate, PC) or polymethyl methacrylate (polymethylmethacrylate, PMMA), the selection of base material 12a is not limited to the above-mentioned material of mentioning, all can be used as polymer base material 12a of the present invention so long as have the macromolecule of optical property.And UV hardened material 12b mainly is made up of photopolymerization monomer collocation light initiator, monomer for example is the monomer of alkene esters of gallic acid, epoxy resin, amine ester class or silanes, the light initiator is chloracetophenone, benzoin ether or para aminoacetophenone for example, yet the selection of UV hardened material 12b is not limited to the above-mentioned material of mentioning, can select unlike material according to the needs of processing procedure in addition, as long as its refractive index (n) is about 1.3～1.8.
The present invention is characterized in to have a plurality of polyhedron micro-structurals 14 on the UV hardened material 12b, these polyhedron micro-structurals 14 are projected among this UV hardened material 12b, it is uniformly distributed among the UV hardened material 12b, and long scope is about 10 μ m～200 μ m at its end, and altitude range is about 5 μ m～60 μ m.
Because the special shape and the angle design of polyhedron micro-structural 14, when light source 16 was arranged at the side of leaded light component 12, light 11 can vertically direct on the observer 13 positive visual angles, therefore, when making after light 11 penetrates this polyhedron micro-structural 14, light 11 can evenly be derived button.
In one embodiment, this polyhedron micro-structural for example is a triangle column type micro-structural 14 (as shown in Figure 1a), and its base angle scope is about 30～80 degree.In addition, polyhedron micro-structural 14 also can be tetrahedron or pentahedral micro-structural, as long as can reach the purpose of even derivation light.
Be noted that herein the micro-structural on the known leaded light component is generally bowl-shape micro-structural, it can't directly directly be directed to positive view directions with light source, therefore needs many light sources of collocation to reach the even brightness effect usually.And the design of the present invention by the polyhedron micro-structural, can be effectively with ray guidance to positive view directions, the light service efficiency is improved, reduce the power consumption of light source, even under the situation that reduces light source and high brightness and high uniformity can be arranged.
The mode of the making of leaded light component 12 of the present invention, at first be by ultraviolet light photopolymerization shaping (UVcuring) pattern transfer producing process, a plurality of polyhedron micro-structurals 14 are impressed among the UV hardened material 12b, utilize scroll bar formula coating machine platform to drive polymer base material 12a and UV hardened material 12b again, two materials are bonding, utilize UV light that UV hardened material 12b is solidified afterwards again, can make leaded light component 12.Because leaded light component 12 of the present invention gets by the preparation of scroll bar continous way (Roll to Roll) processing procedure, and the leaded light component of other known technology is made with the injection molding or the mode of hot pressing usually, in comparison, the present invention is easier to a large amount of productions, more meets the demand in market.
Moreover, the thickness that can adjust polymer base material 12a and UV hardened material 12b is to produce the leaded light component 12 with different pressing touch, wherein the thickness ratio of UV hardened material 12b and polymer base material 12a is about 0.01～200, preferable scope is about 0.1～20, and the thickness of leaded light component 12 is about 0.05～0.5mm.
Another embodiment of the present invention, shown in Fig. 1 b, leaded light component 12 ' wherein also mainly is made up of polymer base material 12a ' and UV hardened material 12b ', polymer base material 12a ' wherein, the polymer base material 12a of UV hardened material 12b ' and Fig. 1 a, 12b is identical for the UV hardened material, do not repeat them here, and the difference of this embodiment and first embodiment is that polyhedron micro-structural 14 ' is recessed among UV hardened material 12b ', and these polyhedron micro-structural 14 ' angles are all identical with first embodiment with size, and recessed polyhedron micro-structural can directly be directed to light source the positive view directions of observer equally, the light service efficiency is improved, reduce the power consumption of light source.
The present invention still comprises a kind of mobile phone key backlight module, sees also Fig. 2, and it comprises: a button pattern means 20; One leaded light component 12 is positioned under the button pattern means 20; One reflector plate 28 is positioned under the leaded light component 12; And a light source 16, be positioned at the side of leaded light component 12, wherein leaded light component 12, polymer base material 12a and the material of UV hardened material 12b are selected all identically with first embodiment, do not repeat them here.And polymer base material 12 has first surface 121 and second surface 123, and UV hardened material 12b is positioned at going up of first surface 121 and has a plurality of polyhedron micro-structurals 14.In another embodiment, UV hardened material 12b on being positioned at first surface 121, comprise also being positioned on the second surface 123 that those skilled in the art can be according to the needs of practical application, suitable adjustment is done in position to UV hardened material 12b, is not limited to position of the present invention.
Button pattern means 20 of the present invention is made up of keying body 20a and a plurality of button 20b that is formed on the keying body 20a.And the present invention is characterized in to have a plurality of polyhedron micro-structurals 14,14 ' on UV hardened material 12b, the 12b ', shown in Fig. 1 a and Fig. 1 b, these micro-structurals 14 can be among projection or the recessed UV hardened material 12b.
Long scope is about 10 μ m～200 μ m at the end of above-mentioned polyhedron micro-structural 14, and altitude range is about 5 μ m～60 μ m.In one embodiment, when the polyhedron micro-structural was triangle column type micro-structural, its base angle scope was about 30～80 degree, and it is uniformly distributed among the UV hardened material 12b.Because the particular design of polyhedron micro-structural makes light can effectively be directed to the positive view directions of observer, and the light service efficiency is improved, and reduces the power consumption of light source.
Leaded light component of the present invention gets for 12 same preparations by scroll bar continous way (Roll to Roll) processing procedure, its thickness by adjusting polymer base material 12a and UV hardened material 12b is to produce the leaded light component 12 with different senses of touch, wherein the thickness ratio of UV hardened material 12b and polymer base material 12a is about 0.01～200, preferable scope is about 0.1～20, and the thickness of leaded light component 12 is about 0.05～0.5mm.
In sum, the advantage of key light guide assembly of the present invention and key backlight module thereof is:
(1) utilizes polymer base material collocation UV hardened material, can reach the demand of slimming, and, can produce different pressing touch by adjusting the thickness proportion of polymer base material and UV hardened material.
(2) the effective leaded light of the design of polyhedron micro-structural improves the light service efficiency, reduces the power consumption of light source.
(3) leaded light component is to utilize scroll bar continous way (Roll to Roll) processing procedure preparation and get, and volume production meets market trend fast.
Though the present invention discloses as above with several preferred embodiments; so it is not in order to limit this creation; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can changing arbitrarily and retouching, so protection scope of the present invention is as the criterion when looking the scope that claims define.
Claims (26)
1. a key light guide assembly is characterized in that, comprising:
One polymer base material; And
One UV hardened material is positioned at this polymer base material surface, and wherein this UV hardened material has a plurality of polyhedron micro-structurals.
2. key light guide assembly according to claim 1 is characterized in that, this polymer base material is PET, Merlon or polymethyl methacrylate.
3. key light guide assembly according to claim 1 is characterized in that, the refractive index of this UV hardened material is 1.3～1.8.
4. key light guide assembly according to claim 1 is characterized in that, this polyhedron micro-structural is projected in this UV hardened material.
5. key light guide assembly according to claim 1 is characterized in that, this polyhedron micro-structural is recessed in this UV hardened material.
6. key light guide assembly according to claim 1 is characterized in that, long scope is 10 μ m～200 μ m at the end of this polyhedron micro-structural.
7. key light guide assembly according to claim 1 is characterized in that, the altitude range of this polyhedron micro-structural is 5 μ m～60 μ m.
8. key light guide assembly according to claim 1 is characterized in that, this polyhedron micro-structural is a triangle column type micro-structural.
9. key light guide assembly according to claim 8 is characterized in that, the base angle scope of this triangle column type micro-structural is 30～80 degree.
10. key light guide assembly according to claim 1 is characterized in that, the thickness ratio scope of this UV hardened material and this polymer base material is 0.01～200.
11. key light guide assembly according to claim 1 is characterized in that, the thickness of this leaded light component is 0.05～0.5mm.
12. key light guide assembly according to claim 1 is characterized in that, this leaded light component is to get by the preparation of scroll bar continous way processing procedure.
13. a mobile phone key backlight module is characterized in that, comprising:
One button pattern means;
One leaded light component, be positioned under this button pattern means, wherein this leaded light component comprises a polymer base material and a UV hardened material, wherein this polymer base material has a first surface and second surface, and this UV hardened material is positioned on this first surface or the second surface and has a plurality of polyhedron micro-structurals;
One reflector plate is positioned under this leaded light component; And
One light source is positioned at the side of this leaded light component.
14. mobile phone key backlight module according to claim 13 is characterized in that, this polymer base material is PET, Merlon or polymethyl methacrylate.
15. mobile phone key backlight module according to claim 13 is characterized in that, the refractive index of this UV hardened material is 1.3～1.8.
16. mobile phone key backlight module according to claim 13 is characterized in that, this polyhedron micro-structural is projected in this UV hardened material.
17. mobile phone key backlight module according to claim 13 is characterized in that, this polyhedron micro-structural is recessed in this UV hardened material.
18. mobile phone key backlight module according to claim 13 is characterized in that, long scope is 10 μ m～200 μ m at the end of this polyhedron micro-structural.
19. mobile phone key backlight module according to claim 13 is characterized in that, the altitude range of this polyhedron micro-structural is 5 μ m～60 μ m.
20. mobile phone key backlight module according to claim 13 is characterized in that, this polyhedron micro-structural is a triangle column type micro-structural.
21. mobile phone key backlight module according to claim 20 is characterized in that, the base angle scope of this triangle column type micro-structural is 30～80 degree.
22. mobile phone key backlight module according to claim 13 is characterized in that, the thickness ratio scope of this UV hardened material and this polymer base material is 0.01～200.
23. mobile phone key backlight module according to claim 13 is characterized in that, the thickness of this leaded light component is 0.05～0.5mm.
24. mobile phone key backlight module according to claim 13 is characterized in that, this leaded light component is to get by the preparation of scroll bar continous way processing procedure.
25. mobile phone key backlight module according to claim 13 is characterized in that, this reflector plate has the character that a part penetrates or a part reflects.
26. mobile phone key backlight module according to claim 13 is characterized in that, this light source is linear light source or point source of light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101499073A CN101929656A (en) | 2009-06-22 | 2009-06-22 | Key light guide assembly and key backlight module thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101499073A CN101929656A (en) | 2009-06-22 | 2009-06-22 | Key light guide assembly and key backlight module thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101929656A true CN101929656A (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101499073A Pending CN101929656A (en) | 2009-06-22 | 2009-06-22 | Key light guide assembly and key backlight module thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023475A (en) * | 2012-11-19 | 2013-04-03 | 珠海市魅族科技有限公司 | Touch button and terminal device using same |
-
2009
- 2009-06-22 CN CN2009101499073A patent/CN101929656A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023475A (en) * | 2012-11-19 | 2013-04-03 | 珠海市魅族科技有限公司 | Touch button and terminal device using same |
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Open date: 20101229 |