Multicolor luminous word key
Technical field
The present invention relates to a kind of luminous button, refer in particular to a kind of button with polychrome evenly luminous effect.
Background technology
At present, when using the button of electronic product, the user need recognize the mark on the button by external light source; Could use button that electronic product is carried out corresponding control; Yet under the low light level or unglazed environment, the user often can't not operate because seeing the mark on the button.In order to be implemented in operation push-button under the low light level or the unglazed environment, then people have increased by a back light below keycap, like the luminous button of common mobile phone; Yet, this luminous button only by around the button or the outside scattering of mark position, help the user to recognize respective markers; But generally only can send monochromatic light; And luminous position is comparatively single, so with regard to user's visual experience, what existing luminous button was demonstrated is a kind of visual effect of dullness.
In order to make keycap can send colored light, the someone uses multi-colored led as luminous element, and it can make button send the glory of different colours, but multi-colored led cost will exceed much than general white light cost, and cost is not easy to popularization than higher.This shows, the present invention provide a kind of luminous evenly and have the multicolor luminous button of multicolour real belong to necessary.
Summary of the invention
Technical problem to be solved by this invention aims to provide a kind of multicolor luminous button, can scatter the colorful light of polychrome around the mark of said button, and people use under dark or low light environment and facilitate.
Above-mentioned purpose is achieved in that
A kind of multicolor luminous button, it comprises:
One keycap, it has front and back, and the front is provided with mark, and the back side offers a cavity;
One light guide zone, its be arranged at said mark around;
One multiple color layer, it is located at the back side of said keycap
One light source, it certainly is arranged at the keycap below.
Preferably, the marked region at the said light guide zone back side is provided with the portion of adding lustre to, and its cross section is V-type or U type, and the symmetry of V-type or U type can make light transmission add lustre to after the portion, and is even from the light that send in the keycap front, and brightness increases.
Preferably, said multiple color layer is located at marked region.
Preferably, through one-body molded said keycap of the mode of ejection formation and light guide zone.
Preferably, said multiple color layer material is a light transmissive material, and it forms through spraying method, and light can see through multiple color layer, and the light that makes button send is colourama.
Compared with prior art, the present invention has the following advantages:
1. in order to make the light that penetrates from the front more even; And increase brightness; Marked region at the back side of light guide zone is provided with a plurality of portions of adding lustre to, and the cross section of the said portion of adding lustre to is that V-type or U type make when light source is mapped to the back side of keycap, sees through from the portion of adding lustre to; Increase the contact area of light and light guide zone, thereby increased the brightness of light.
2. the back side of keycap is provided with multiple color layer, and said multiple color layer is processed by transparent material, makes single light source pass multiple color layer when the positive ejaculation of keycap, can form colored light.And, can form the multiple color layer of different colours in the zone at the keycap back side of different markers, so that different markers can be sent the light of different colours, make the outward appearance fashion more attractive in appearance of keyboard, increased the market competitiveness.
Description of drawings
To combine accompanying drawing and embodiment to further explain of the present invention below:
Fig. 1 is the structural representation at the back side of the keycap of multicolor luminous button one preferred embodiment of the present invention;
Fig. 2 is the structural representation in the front of the keycap of multicolor luminous button one preferred embodiment of the present invention;
Fig. 3 is the profile of multicolor luminous button one embodiment of the present invention;
Fig. 4 is the profile of A-A among Fig. 1.
Embodiment
Referring to Fig. 1 and Fig. 2.The multicolor luminous button of the present invention, it includes keycap 10, light guide zone 20, multiple color layer 30, and a light source 40, wherein, light source 40 is positioned at the below (like Fig. 3 or shown in Figure 4) of keycap 10.Said keycap 10 includes positive 101 and one back side 102, and said light guide zone 20 and said multiple color layer 30 are located at the back side 102 of keycap 10 successively, and the front 101 of keycap 10 is provided with mark 103 with light guide zone 20, multiple color layer 30 region facing.When light source 40 is luminous when shining the back side 102 of keycap 10, light can see through light guide zone 20, penetrates from the front 101 of keycap 10; Make be located at positive 101 marked region not only can be luminous, and can send colored light, thereby not only solve under the situation of dark or other insufficient lights; Also can see mark 103 clearly;, and increased visual effect, make whole keyboard become attractive in appearance.
Specifically, be provided with the portion of adding lustre to 201 at the back side 102 of keycap 10, preferably, the said portion 201 of adding lustre to is arranged at the zone of light guide zone 20, and its cross section is V-type or U type, is preferably V-type in the present embodiment.When making illumination be mapped to the portion 201 of adding lustre to of V-type at the back side 102; The inclined-plane of V-type makes when illumination is mapped to the back side 102 of keycap 10; Increased the contact area of light and keycap 10; Thereby increased the brightness of light, and because the symmetry of V-type, and guaranteed from the uniformity of light of front 101 ejaculations of keycap 10.Equally, when the portion of adding lustre to 201 is the U type of symmetry, also can increase from the brightness of the light of positive 101 ejaculations, and uniformity of light.In the present invention, can be overleaf 102 the portion 201 (as shown in Figure 3) of adding lustre to be set, a plurality of portions 201 (as shown in Figure 4) of adding lustre to also can be set, and those a plurality of add lustre to portion 201 side by side branch in the zone of said light guide zone 20.By contrast, the light enhancing effect of a plurality of portions 201 of adding lustre to is obviously than the effective of portion 201 that adds lustre to.
In addition, said light guide zone 20 is processed by transparent materials such as plastics, glass, crystal or trnaslucent materials, preferably is made of plastics.Light guide zone 20 is by ejection formation, and they can be with keycap 10 moulding.
Said multiple color layer 30 is located at mark 103 zones, and it is transparent materials such as paint, coating, is preferably paint, and can form through the mode of spraying.After forming multiple color layer 30, can see the color of the multiple color layer 30 of the light guide zone 20 that is sprayed at the keycap back side 101 through the front 101 of keycap 10.
When making the keycap 10 of said multicolor luminous button; After forming light guide zone 20 through the mode of pasting or penetrating earlier; The technology of utilizing relatively convention again causes a plurality of V-type groovings in light guide zone 20 near the one side at the back side 102, and those V-type groovings distribute side by side, constitutes a plurality of portions 201 of adding lustre to.Afterwards,, or, spray coloured paint, form multiple color layer 30 in mark 103 opposing backside surface 102 then at the back side 102 of keycap 10 again.Preferably, when needing a plurality of mark 103 on the same keycap 10, can be at the paint of the back side spraying different colours of the relative light guide zone 20 of each mark 103, thus make the user see that from positive 101 different markers 103 sends the light of different color.
For convenient for production, and save human cost, the multiple color layer 30 described in the present invention and the portion 201 of adding lustre to can be one-body molded.Be preferably decoration technique inside mold (IMR/IMD) technology of using, this decoration technique can make a plurality of portion 201 and multiple color layers 30 of adding lustre to accomplish together.
The above person of thought; Be merely the present invention's preferred embodiment; When the scope that can not limit the present invention's enforcement with this; The content of promptly putting down in writing according to claim of the present invention and description of the invention has generally been done simple equivalent and has been changed and modify, and all still belongs within the claim of the present invention institute covering scope.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not the interest field that is used for limiting the present invention.