CN103839721A - Light-emitting keyboard - Google Patents
Light-emitting keyboard Download PDFInfo
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- CN103839721A CN103839721A CN201210483037.5A CN201210483037A CN103839721A CN 103839721 A CN103839721 A CN 103839721A CN 201210483037 A CN201210483037 A CN 201210483037A CN 103839721 A CN103839721 A CN 103839721A
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- keycap
- circuit pattern
- light
- illuminated keyboard
- supporting bracket
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Abstract
The invention provides a light-emitting keyboard comprising side-light type light-emitting elements, a light guide sheet, a reflecting layer, an induction circuit pattern and multiple keys. The side-light type light-emitting elements are used for providing light beams to be incident to the light guide sheet so that the light beams can be diffused to the whole light guide sheet. Besides, multiple light guide points in the light guide sheet are used for aggregating and diffusing the light beams, the upwardly-diffused light beams are projected to the multiple keys, and the downwardly-diffused light beams are reflected by the reflecting layer and then incident to the light guide sheet again. The induction circuit pattern is formed on the surface of the reflecting layer. When any one of the keys is close to the induction circuit pattern, the induction circuit pattern correspondingly generates a non-contact type key signal. Thickness of the whole structure of the light-emitting keyboard is further reduced.
Description
Technical field
The present invention relates to a kind of keyboard, relate in particular to a kind of keyboard with lighting function.
Background technology
In recent years, because the information industry development is rapid, many users may use portable information apparatus under varying environment, such as notebook computer, mobile phone or personal digital assistant etc.At the weak environment of light, user may not see the numeral and the word that on Chu's keyboard, indicate, thereby causes operational difficulty, and severe patient even may allow visual impairment because identification button reluctantly indicates.Therefore, the release of illuminated keyboard can improve user in the inconvenience of insufficient light place use keyboard.What is more, by different luminous configurations, can make and use the massaging device of illuminated keyboard to seem more attractive in appearance, and then increase its market.
Refer to Fig. 1, the structural profile schematic diagram that it is existing illuminated keyboard.Illuminated keyboard 1 comprises reflector 11, light guide plate 12, supporting bracket 13, film circuit board 14, multiple button 15 and side direction type illuminating element 16, wherein, film circuit board 14 comprises lower plywood 141, top plate 142 and the la m between lower plywood and top plate 143, and lower plywood 141, la m 143 and top plate 142 are all made by transparent light guide material, transparent light guide material can be Merlon (PC) or polyethylene (PET) etc.
Moreover, please synchronously consult Fig. 2, it is the three-dimensional exploded view of the film circuit board of illuminated keyboard shown in Fig. 1, lower plywood 141 has the first circuit pattern 1411 being made up of multiple elargol circuits 14111 and multiple lower contacts 14112, and top plate 142 has the second circuit pattern 1421 being made up of multiple elargol circuits 14211 and multiple upper contacts 14212, again, la m 143 has the contact perforate 1431 with multiple upper contacts 14212 corresponding to multiple lower contacts 14122, wherein, common shape one thin film switch 144 of lower contact 14112 that each upper contact 14212 is corresponding with it.
Again, supporting bracket 13 is arranged at the below of film circuit board 14, and has multiple perforation 131, first fixed structure 132 and the second fixed structure 133; And each button 15 comprises keycap 151, elastomer 152 and scissor Connection Element 153, and keycap 151 comprises the first keycap fixed structure 1511 and the second keycap fixed structure 1512; And scissor Connection Element 153 comprises the first framework 1531 and the second framework 1532; In addition, elastomer 152 is between keycap 151 and film circuit board 141.
Wherein, film circuit board 14 has the through hole 145 and the through hole 146 that supply respectively first fixed structure 132 and the second fixed structure 133 to pass wherein, can be connected in the second fixed structure 133 for one end 15311 of the first framework 1531, and its other end 15312 can be connected in the first keycap fixed structure 1511, and can be connected in first fixed structure 132 for one end 15321 of the second framework 1532, and its other end 15322 can be connected in the second keycap fixed structure 1512.
When arbitrary button 15 touched and while moving down with respect to supporting bracket 13, the first framework 1531 and second framework 1532 of scissor Connection Element 153 change to closed state by folding condition, and the keycap 151 moving down can make elastomer 152 support its corresponding upper contact 14212 by extruding elastomer 152, and then make its corresponding upper contact 14212 contact corresponding lower contact 14122 via corresponding contact perforate 1431, make by this corresponding thin film switch 144 reach and electrically conduct, so that illuminated keyboard 1 produces a corresponding push button signalling.And in the time that button 15 is no longer touched, keycap 151 can up move with respect to supporting bracket 13 in response to the elastic force of elastomer 152, now the first framework 1531 and the second framework 1532 change to folding condition by closed state, and keycap 151 can set back.
Moreover side direction type illuminating element 16 is arranged at the side of light guide plate 12, in order to provide light beam to inject light guide plate 12.And light guide plate 12 is arranged on reflector 11, and its lower surface has the multiple light guiding points 121 in order to gathering and scattered beam.Multiple light guiding points 121 are set up according to the position of corresponding multiple buttons 15.Wherein, in the time that light beam is injected light guide plate 12, light beam is flooded to whole light guide plate 12, and multiple light guiding points 121 can because of its relation for ink material by light beam up and down scattering, up the light beam of scattering can sequentially be projected to multiple buttons 15 by multiple perforation 131 and the film circuit board 14 of supporting bracket 13, and down the light beam of scattering can upwards reflect light beam via the auxiliary of reflector 11 again, so that can being improved, the light beam that side direction type illuminating element 16 provides utilizes.As mentioned above, can make multiple buttons 15 produce luminous effect.Only, existing illuminated keyboard 1 has shortcoming as described below:
Although a reflector 11 can assist the light beam of multiple light guiding points 121 downward scatterings to reflect upward, the reflector 11 specially arranging will increase the integral thickness of illuminated keyboard 1, cannot meet now electronic product towards external form demand light, thin, short and small development.
Two, because the running stroke of scissor Connection Element 153 is longer, therefore must having enough spaces, illuminated keyboard 1 can make scissor Connection Element 153 normal operations, but but therefore cannot effectively reduce the thickness of illuminated keyboard 1, therefore also cannot meet now electronic product towards external form demand light, thin, short and small development.
Base this, now existing a kind of capacitor induction type keyboard is suggested, the electric field that changes the corresponding capacitance-type switch in the circuit board of keyboard in its process being pressed down by keycap makes circuit board produce the corresponding push button signalling of output one; Wherein, because capacitor induction type keyboard not necessarily will use the related elements such as scissor Connection Element, the integral thickness of capacitor induction type keyboard can effectively be reduced; But, not yet there is now the capacitor induction type keyboard of tool illumination effect to be suggested, therefore under the weak environment of light, user may not see numeral and the word that the button on Chu's capacitor induction type keyboard indicates, thereby causes operational difficulty or visual impairment.
Summary of the invention
Main purpose of the present invention is providing a kind of illuminated keyboard, especially responds to the illuminated keyboard of form about a kind of noncontact.
In a preferred embodiment, the invention provides a kind of illuminated keyboard, comprising:
At least one side direction type illuminating element, in order to provide light;
One light guide sheet, its side is adjacent to this at least one side direction type illuminating element, and has multiple light guiding points, in order to the light of assembling and this at least one side direction type illuminating element of scattering provides;
One reflector, is arranged at this light guide sheet below, and in order to reflect the light from this light guide sheet;
One sensor circuit pattern, in order to produce at least one contactless push button signalling; And
At least one button, is arranged at this light guide sheet top, in order to touched and make this at least one contactless push button signalling of this sensor circuit pattern generating;
Wherein, this sensor circuit pattern is formed at the surface in this reflector.
In a preferred embodiment, this at least one button comprises:
One keycap, is revealed in the outside of this illuminated keyboard; And
One conductor, is arranged between this keycap and this sensor circuit layer, and along with this keycap moves; Wherein, in the time that this keycap is touched, this conductor makes this sensor circuit layer produce this at least one contactless push button signalling near this sensor circuit layer downwards.
In a preferred embodiment, this conductor comprises a conductive material, and this conductive material is a conducting foam, a metal material or a metallic paint.
In a preferred embodiment, illuminated keyboard also comprises a supporting bracket, be arranged between this light guide sheet and this at least one button, use for this at least one button and be connected in this supporting bracket, and this supporting bracket has at least one supporting bracket perforation corresponding to this at least one button.
In a preferred embodiment, this supporting bracket is a transparent support board.
In a preferred embodiment, this supporting bracket has at least one supporting bracket perforation corresponding to this at least one button
In a preferred embodiment, this at least one button also comprises a Connection Element, is connected between this supporting bracket and this keycap, and this keycap is moved up and down with respect to this supporting bracket.
In a preferred embodiment, this Connection Element is a scissor Connection Element.
In a preferred embodiment, this at least one button also comprises an elastomer, is arranged between this supporting bracket and this keycap; Wherein, when this keycap is stopped while pressing, this elastomer provides an elastic force to give this keycap, so that this keycap sets back.
In a preferred embodiment, this at least one button also comprises:
One key frame, is arranged in this supporting bracket, and has a containing hole, uses for this keycap and is embedded in this containing hole; And
Multiple elastic arms, with so that this keycap moves up and down with respect to this reflector, each elastic arm comprises an interior fixing arm, an outer movable arm and one jiao of transition part, and this angle transition part is connected between this interior fixing arm and this outer movable arm.
In a preferred embodiment, this at least one button also comprises multiple elastic arms, with so that this keycap move up and down with respect to this reflector; Wherein, each elastic arm comprises that a stiff end is connected in this supporting bracket and a free end is connected in this keycap.
In a preferred embodiment, this sensor circuit pattern comprises at least one the first polar circuit pattern and at least one the second polar circuit pattern, and in the time that this sensor circuit pattern is energized, between this at least one first polar circuit pattern and this at least one the second polar circuit pattern, produce an electric field; Wherein, when this at least one button is touched, when this sensor circuit pattern, this electric field changes and makes this sensor circuit layer produce this at least one contactless push button signalling.
In a preferred embodiment, illuminated keyboard also comprises a metal base plate, is arranged at this sensor circuit layer below.
In a preferred embodiment, this at least one light-emitting component is a light-emitting diode.
In a preferred embodiment, illuminated keyboard is a capacitor induction type illuminated keyboard.
In a preferred embodiment, this light guide sheet is made by polyethylene terephthalate (PET) material, Merlon (PC) material, thermoplastic polyurethanes (TPU) or acryl plastic cement (PMMA) material.
In a preferred embodiment, this sensor circuit pattern is formed at the upper surface in this reflector, or is the lower surface that this sensor circuit pattern is formed at this reflector.
Beneficial effect of the present invention is, illuminated keyboard design of the present invention is directly formed at sensor circuit pattern the surface in reflector, just do not need to arrange in addition base material (as sensor circuit plate) formed thereon for sensor circuit pattern, therefore the integrally-built thickness of illuminated keyboard will more reduce, and because this case is the sensor circuit pattern that adopts noncontact induction form, therefore the keyboard that has improved existing noncontact induction form is not had a defect of lighting function, be one to have the invention of industry applications in fact.
Brief description of the drawings
Fig. 1: be the structural profile schematic diagram of existing illuminated keyboard.
Fig. 2: be the three-dimensional exploded view of the film circuit board of illuminated keyboard shown in Fig. 1.
Fig. 3: be the structure side view of illuminated keyboard of the present invention in the first preferred embodiment.
Fig. 4: be the reflector of illuminated keyboard shown in Fig. 3 and the structural representation of lower surface thereof.
Fig. 5: be the structure vertical view of the keycap of illuminated keyboard shown in Fig. 3.
Fig. 6: be the structure side view of illuminated keyboard of the present invention in the second preferred embodiment.
Fig. 7: be the structure side view of illuminated keyboard of the present invention in the 3rd preferred embodiment.
Fig. 8: be the structure side view of illuminated keyboard of the present invention in the 4th preferred embodiment.
Fig. 9: be the perspective exploded view of the button of illuminated keyboard shown in Fig. 8.
Figure 10: be the button of illuminated keyboard shown in Fig. 8 view when not touched.
Figure 11: be the button of illuminated keyboard shown in Fig. 8 view when touched.
Figure 12: be the structure side view of illuminated keyboard of the present invention in the 5th preferred embodiment.
Figure 13: be the structure side view of illuminated keyboard of the present invention in the 6th preferred embodiment.
Figure 14: be the structure side view of illuminated keyboard of the present invention in the 7th preferred embodiment.
Figure 15: be the structure side view of illuminated keyboard of the present invention in the 8th preferred embodiment.
Wherein, description of reference numerals is as follows:
1 illuminated keyboard 2 illuminated keyboards
2A illuminated keyboard 2B illuminated keyboard
2C illuminated keyboard 2D illuminated keyboard
2E illuminated keyboard 2F illuminated keyboard
11 reflector 12 light guide plate
13 supporting bracket 14 film circuit boards
15 button 16 side direction type illuminating elements
21 base 22 light guide sheet
23 supporting bracket 23B supporting brackets
24 sensor circuit pattern 25 buttons
27 reflector 28 metal base plates
29 buttons 131 are bored a hole
132 first fixed structure 133 second fixed structures
141 lower plywood 142 top plates
143 la m 144 thin film switches
145 through hole 146 through holes
151 keycap 152 elastomers
153 scissor Connection Element 221 light guiding points
232 first fixed structure 233 second fixed structures
234 lens section 235 lenticular bodies
236 micro-structural 237 texture patternings
241 first polar circuit pattern 242 second polar circuit patterns
243 capacitance key switch 244 sensor film wiring boards
245 sensor film wiring board 251 keycaps
252 conductor 253 Connection Elements
254 elastomer 255 elastic arms
291 keycap 293 key frames
294 elastic arm 1,411 first circuit patterns
1421 second circuit pattern 1431 contact perforates
1511 first keycap fixed structure 1,512 second keycap fixed structures
1531 first framework 1,532 second frameworks
2511 first keycap fixed structure 2,512 second keycap fixed structures
2513 bright dipping region 2,531 first frameworks
The stiff end of 2532 second framework 2551 elastic arms
The outer movable arm of 2941 interior fixing arm 2942
2943 jiaos of transition part 14111 elargol circuits
14112 times contact 14211 elargol circuits
One end of 14212 upper contact 15,311 first frameworks
One end of the other end 15,321 second frameworks of 15312 first frameworks
One end of the other end 25,311 first frameworks of 15322 second frameworks
One end of the other end 25,321 second frameworks of 25312 first frameworks
The other end of 25322 second frameworks
Embodiment
Refer to Fig. 3 ~ Fig. 5, Fig. 3 is the structure side view of illuminated keyboard of the present invention in the first preferred embodiment, and Fig. 4 is the reflector of illuminated keyboard shown in Fig. 3 and the structural representation of lower surface thereof, and Fig. 5 is the structure vertical view of the keycap of illuminated keyboard shown in Fig. 3.
Moreover supporting bracket 23 use connect thereon for multiple buttons 25, and each button 25 all has keycap 251, conductor 252 and Connection Element 253; Wherein, each Connection Element 253 is arranged between supporting bracket 23 and corresponding keycap 251, in order to connect supporting bracket 23 and corresponding keycap 251, and corresponding keycap 251 can be moved up and down with respect to supporting bracket 23, and each conductor 252 is connected in corresponding keycap 251 belows, move with the keycap 251 along with corresponding, and conductor 252 comprises a conductive material, as conducting foam, metal material, graphite or metallic paint etc., but not as limit.In addition, keycap 251 has at least one bright dipping region 2513, and transmission region 2513 can comprise a symbol shape, a numerical switch or a word shape.
Again, in this preferred embodiment, side direction type illuminating element 26 is light-emitting diode, and light guide sheet 22 can be made by polyethylene terephthalate (PET) material, Merlon (PC) material, thermoplastic polyurethanes (TPU) or acryl plastic cement (PMMA) material, but not as limit.Side direction type illuminating element 26 is in order to provide light beam to inject light guide sheet 22, and the surface of light guide sheet 22 has in order to assemble and multiple light guiding points 221 of scattered beam, and multiple light guiding points 221 is according to being set up corresponding to the position of multiple buttons 15; Wherein, in the time that light beam is injected light guide sheet 22, light beam is flooded to whole light guide sheet 22, and multiple light guiding points 221 can because of the relation of its material (as ink material) or its structure (as micro-structural) by light beam up and down scattering; In this preferred embodiment, supporting bracket 23 is a transparent support board, therefore by multiple light guiding points 221 up the light beam of scattering can after by supporting bracket 23, be projected to multiple buttons 25, and outwards exported by the bright dipping region 2513 of keycap 251, user just can see symbol luminous on button 25, numeral or word by this, has overcome the operational difficulty causing under the weak environment of light.
In addition, by multiple light guiding points 221 down the light beam of scattering can be projected to reflector 27, and on reflector 27, produce reflection to enter once again light guide sheet 22, therefore the light beam that side direction type illuminating element 16 provides can be because not run off by the downward scattering of multiple light guiding points 221, reclaim by so appropriate light, increase the efficiency of light of illuminated keyboard 2.
Moreover, in this preferred embodiment, illuminated keyboard 2 is a condenser type illuminated keyboard, and sensor circuit pattern 24 is a capacitive induction circuit pattern, and comprises multiple the first polar circuit patterns 241 and multiple the second polar circuit patterns 242 corresponding to multiple the first polar circuit patterns 241, wherein, between each first polar circuit pattern 241 and corresponding the second polar circuit pattern 242, there is a spacing distance, and each first polar circuit pattern 241 forms a capacitance key switch 243 with the second corresponding polar circuit pattern 242, in the time that sensor circuit layer 24 is energized, between each first polar circuit pattern 241 and corresponding the second polar circuit pattern 242 thereof, can produce an electric field, if now wherein an electric field is changed, corresponding capacitance key switch 243 can be excited, make sensor circuit layer 24 produce output one contactless push button signalling.
What remark additionally is, although above-mentioned each first polar circuit pattern 241 and the second corresponding polar circuit pattern 242 thereof are spaced apart with the arrangement mode in same level, but not as limit, each first polar circuit pattern 241 and the second corresponding polar circuit pattern 2421 thereof can also be on different level arrangement mode spaced apart, that is to say each first polar circuit pattern 241 can be arranged at its second corresponding polar circuit pattern 242 above or below, and can between each first polar circuit pattern 241 and corresponding the second polar circuit pattern 242 thereof, coat or print a spacer element (as UV glue) or an interval base material is set, make each first polar circuit pattern 241 and 242 corresponding, the second polar circuit pattern thereof be perpendicular separation.
In addition, it is above-mentioned that by capacitive induction, mode and the start principle thereof of output key signal is as known to those of skill in the art would knowing, no longer repeated at this, only the pattern of sensor circuit shown in Fig. 4 24 is only an embodiment, do not limit to the form of sensor circuit pattern with this, those skilled in the art can carry out according to practical application request any variation design being equal to.For instance, also to can be electromagnetic type sensor circuit layer etc. be the sensor circuit layer of non-contact induction form to sensor circuit pattern 24 equally.
In this preferred embodiment, the Connection Element 253 of each button 25 is a scissor Connection Element, and comprises the first framework 2531 and the second framework 2532; And supporting bracket 23 also has first fixed structure 232 and the second fixed structure 233, and the keycap 251 of each button 25 all comprises one first keycap fixed structure 2511 and one second keycap fixed structure 2512.Wherein, one end 25311 of the first framework 2531 can be connected in the second fixed structure 233, and its other end 25312 can be connected in the first keycap fixed structure 2511, and one end 25321 of the second framework 2532 can be connected in first fixed structure 232, and its other end 25322 can be connected in the second keycap fixed structure 2512.Certainly, above are only an enforcement aspect, do not limit the connection relationship of 251 of this case Connection Element 253, supporting bracket 23 and keycaps with this.
Again, multiple buttons 25 are arranged at corresponding to multiple capacitance key switch 243 parts, when arbitrary keycap 251 touched and while moving down with respect to supporting bracket 23, the first framework 2531 and second framework 2532 of corresponding Connection Element 253 change to closed state by folding condition, and corresponding conductor 252 can move down and close sensor circuit pattern 24 along with this arbitrary keycap 251, now the electric field between corresponding the first polar circuit pattern 241 and the second polar circuit pattern 242 can produce change, and then corresponding capacitance key switch 243 is excited, make sensor circuit layer 24 produce the corresponding contactless push button signalling of output.
Preferably, each button 25 also comprises an elastomer 254, be arranged between keycap 251 and supporting bracket 23, in the time that arbitrary keycap 251 is no longer touched, corresponding elastomer 254 can provide an elastic force to give this arbitrary keycap 251, this arbitrary keycap 251 is up moved with respect to supporting bracket 23, now the first framework 2531 and the second framework 2532 can change to folding condition by closed state, and keycap 251 can set back, in addition, elastomer 254 also can provide the feedback feel that user presses keycap 251; Wherein, above-mentioned elastomer 254 only, for making the one that keycap 251 sets back implement means, does not limit application category of the present invention with this, and those skilled in the art can carry out according to practical application request any variation design being equal to.
Refer to Fig. 6, it is the structure side view of illuminated keyboard of the present invention in the second preferred embodiment.Wherein, the illuminated keyboard 2A of this preferred embodiment is roughly similar to person described in this case the first preferred embodiment, is no longer repeated at this.And this preferred embodiment is with aforementioned the first preferred embodiment difference, illuminated keyboard 2A also comprises metal base plate 28, it is arranged at the below of sensor circuit pattern 24, prevents that in order to the worn-out effect of a screen to be provided wantonly two adjacent capacitance key switches 243 from the interference on electric field occurring.
Special instruction, those skilled in the art all can be by the enlightenment obtaining in this second preferred embodiment, and the metal base plate in the second preferred embodiment 28 is applied in following each preferred embodiment.
Refer to Fig. 7, it is the structure side view of illuminated keyboard of the present invention in the 3rd preferred embodiment.Wherein, the illuminated keyboard 2B of this preferred embodiment is roughly similar to person described in this case the first preferred embodiment, is no longer repeated at this.And this preferred embodiment is with aforementioned the first preferred embodiment difference, supporting bracket 23B is not a transparent support board, and on supporting bracket 23B, there is the multiple supporting brackets perforation 234 corresponding to multiple buttons, thus by multiple light guiding points 221 upwards the light beam of scattering can after the supporting bracket perforation 234 through corresponding, be projected to corresponding keycap 251.
What specify is, although be to make keycap 251 and conductor 252 move up and down with respect to sensor circuit pattern 24 by the collocation of supporting bracket 23,23B and scissor Connection Element 253 in the various embodiments described above, but this is only a kind of enforcement means that keycap 251 and conductor 252 are moved up and down with respect to sensor circuit pattern 24, those skilled in the art can carry out according to practical application request the variation design of any equalization, and scissor Connection Element 253 is not the necessary element that limits this case.
For instance, refer to Fig. 8 ~ Figure 11, Fig. 8 is the structure side view of illuminated keyboard of the present invention in the 4th preferred embodiment, Fig. 9 is the perspective exploded view of the button of illuminated keyboard shown in Fig. 8, Figure 10 is the button of illuminated keyboard shown in Fig. 8 view when not touched, and Figure 11 is the button of illuminated keyboard shown in Fig. 8 view when touched.Wherein, the illuminated keyboard 2C of this preferred embodiment is roughly similar to person described in the better enforcement of this case first, is no longer repeated at this.
This preferred embodiment is with aforementioned the first preferred embodiment difference, illuminated keyboard 2C does not comprise scissor Connection Element 253, and each button 29 has keycap 291, conductor 292, key frame 293 and multiple elastic arm 294, each elastic arm 294 is flat rib-like, and comprise interior fixing arm 2941, the outer movable arm 2942 vertical with interior fixing arm 2941 and be connected in interior fixing arm 2941 and outer movable arm 2942 between angle transition part 2943; Wherein, it is in the inner chimeric for keycap 251 that key frame 293 has containing hole 2931, the fixing arm 2941 of each elastic arm 294 is fixed on the bottom of keycap 251, and the outer movable arm 2942 of each elastic arm 294 exposes from the bottom of keycap 251 and be fixed on key frame 293, and a part for the angle transition part 2943 of each elastic arm 294 is exposed from the exterior angle of keycap 251 bottoms.
Moreover in the time that arbitrary keycap 291 is not touched, outer movable arm 2942 and the angle transition part 2943 of each elastic arm 294 all do not deform, it as shown in figure 10, and in the time that this arbitrary keycap 291 is touched, the angle transition part 2943 of each elastic arm 294 can be oppressed in the exterior angle of keycap 291 bottoms, make outer movable arm 2942 and the angle transition part 2943 of each elastic arm 294 that strain all occur, it as shown in figure 11, and conductor 292 can approach towards sensor circuit pattern 24 along with keycap 251, now corresponding capacitance key switch can be excited and make the corresponding contactless push button signalling of sensor circuit pattern 24 generation output (in figure, not indicate capacitance key switch, so its start principle is as being same as person described in the first preferred embodiment).Again, after this arbitrary keycap 291 is stopped and presses, each elastic arm 294 can provide elastic force, and this arbitrary keycap 291 is set back.
What specify is, this preferred embodiment provides a kind of concrete enforcement means that do not adopt scissor Connection Element and keycap and conductor can be moved up and down with respect to sensor circuit pattern, therefore can effectively make illuminated keyboard slimming more, so it is only a kind of embodiment, not as limit.Again, those skilled in the art all can be by the enlightenment obtaining in this 4th preferred embodiment, and the press-key structure in the 4th preferred embodiment is applied in aforementioned the first preferred embodiment to the three preferred embodiments.
In addition, supporting bracket 23 is not also the necessary element that limits this case.Refer to Figure 12, it is the structure side view of illuminated keyboard of the present invention in the 5th preferred embodiment.Wherein, the illuminated keyboard 2D of this preferred embodiment is roughly similar to person described in this case the 4th better enforcement, is no longer repeated at this.This preferred embodiment and aforementioned the 4th preferred embodiment difference be, illuminated keyboard 2D does not comprise supporting bracket 23, and each button 29 is arranged in light guide sheet 22.
Refer to Figure 13, it is the button of illuminated keyboard of the present invention in the 6th preferred embodiment and the perspective exploded view of supporting bracket.Wherein, the illuminated keyboard of this preferred embodiment is roughly similar to person described in the better enforcement of this case first, is no longer repeated at this.
This preferred embodiment and aforementioned the first preferred embodiment difference be, illuminated keyboard does not comprise scissor Connection Element 253, and each button 25E has more the multiple elastic arms 255 between keycap 251 and supporting bracket 23; Wherein, each elastic arm 255 comprises stiff end 2551 and free end 2552, and the stiff end 2551 of each elastic arm 255 is connected in supporting bracket 23, and the free end 2552 of each elastic arm 255 is connected in the bottom of keycap 251.Moreover, in the time that arbitrary keycap 251 is touched, the free end 2552 of each elastic arm 255 can be squeezed and along with keycap 251 moves down, and provide elastic force to give this arbitrary keycap 251, and after this arbitrary keycap 251 is stopped and presses, 251 elastic forces that provide in response to each elastic arm 255 of this arbitrary keycap and setting back.In addition, those skilled in the art all can be by the enlightenment obtaining in this 6th preferred embodiment, and by the press-key structure in the 5th preferred embodiment and interelement relativeness be applied to aforementioned first, second and third, in five preferred embodiments.
Next refer to Figure 14, it is the structure side view of illuminated keyboard of the present invention in the 6th preferred embodiment.Wherein, the illuminated keyboard 2E of this preferred embodiment is roughly similar to person described in this case the first preferred embodiment, is no longer repeated at this.And this preferred embodiment is with aforementioned the first preferred embodiment difference, sensor circuit pattern 24 is the upper surfaces that are formed at reflector 27.Special instruction, the personage who knows this skill all can be by the enlightenment obtaining in this 6th preferred embodiment, and the relative position relation in the sensor circuit pattern 24 in the 6th preferred embodiment and reflector 27 is applied in aforementioned each preferred embodiment.
Refer to Figure 15, it is the structure side view of illuminated keyboard of the present invention in the 7th preferred embodiment.Wherein, the illuminated keyboard 2F of this preferred embodiment is roughly similar to person described in this case the first preferred embodiment, is no longer repeated at this.And this preferred embodiment is with aforementioned the first preferred embodiment difference, the outer surface of supporting bracket 23 is also formed with shading element 20, as black out ink, make that up the light beam of scattering cannot be through having the region of shading element 20 by light guiding points, and only have the region that is not formed with shading element 20 to pass through for light beam, so to prevent that light beam from outbound flowing towards the direction in light requirement source not.In addition, although the shading element 20 in this preferred embodiment is the outer surfaces that are formed at supporting bracket 23, but this is only an embodiment, those skilled in the art can carry out according to practical application request any variation design being equal to, be designed to shading element to be formed at as variable the inner surface of supporting bracket 23, also the variable surface that is designed to shading element to be formed at light guide sheet 22.
What specify is, those skilled in the art all can be by the enlightenment obtaining in this 7th preferred embodiment, and the shading element 20 in the 7th preferred embodiment is applied in aforementioned each preferred embodiment, that is to say, supporting bracket surface in aforementioned each preferred embodiment or light guide sheet surface also can form shading element, to prevent that light beam from outbound flowing towards the direction in light requirement source not.
Known according to above explanation, illuminated keyboard design of the present invention is directly formed at sensor circuit pattern the surface in reflector, just do not need to arrange in addition base material (as sensor circuit plate) formed thereon for sensor circuit pattern, therefore the integrally-built thickness of illuminated keyboard will more reduce, and because this case is the sensor circuit pattern that adopts noncontact induction form, therefore the keyboard that has improved existing noncontact induction form is not had a defect of lighting function, be one to have the invention of industry applications in fact.
The foregoing is only preferred embodiment of the present invention, not in order to limit claim of the present invention, therefore all other do not depart from being equal to change or modifying of completing under disclosed spirit, all should be contained in claim of the present invention.
Claims (17)
1. an illuminated keyboard, comprising:
At least one side direction type illuminating element, in order to provide light;
One light guide sheet, its side is adjacent to this at least one side direction type illuminating element, and has multiple light guiding points, in order to the light of assembling and this at least one side direction type illuminating element of scattering provides;
One reflector, is arranged at this light guide sheet below, and in order to reflect the light from this light guide sheet;
One sensor circuit pattern, in order to produce at least one contactless push button signalling; And
At least one button, is arranged at this light guide sheet top, in order to touched and make this at least one contactless push button signalling of this sensor circuit pattern generating;
Wherein, this sensor circuit pattern is formed at the surface in this reflector.
2. illuminated keyboard as claimed in claim 1, wherein this at least one button comprises:
One keycap, is revealed in the outside of this illuminated keyboard; And
One conductor, is arranged between this keycap and this sensor circuit layer, and along with this keycap moves; Wherein, in the time that this keycap is touched, this conductor makes this sensor circuit layer produce this at least one contactless push button signalling near this sensor circuit layer downwards.
3. illuminated keyboard as claimed in claim 2, wherein this conductor comprises a conductive material, described conductive material is conducting foam, a metal material or a metallic paint.
4. illuminated keyboard as claimed in claim 2, also comprise a supporting bracket, be arranged between this light guide sheet and this at least one button, use for this at least one button and be connected in this supporting bracket, and this supporting bracket has at least one supporting bracket perforation corresponding to this at least one button.
5. illuminated keyboard as claimed in claim 4, wherein this supporting bracket is a transparent support board.
6. illuminated keyboard as claimed in claim 4, wherein this supporting bracket has at least one supporting bracket perforation corresponding to this at least one button.
7. illuminated keyboard as claimed in claim 4, wherein this at least one button also comprises a Connection Element, is connected between this supporting bracket and this keycap, and this keycap is moved up and down with respect to this supporting bracket.
8. illuminated keyboard as claimed in claim 7, wherein this Connection Element is a scissor Connection Element.
9. illuminated keyboard as claimed in claim 7, wherein this at least one button also comprises an elastomer, is arranged between this supporting bracket and this keycap; Wherein, when this keycap is stopped while pressing, this elastomer provides an elastic force to give this keycap, so that this keycap sets back.
10. illuminated keyboard as claimed in claim 4, wherein this at least one button also comprises:
One key frame, is arranged in this supporting bracket, and has a containing hole, uses for this keycap and is embedded in this containing hole; And
Multiple elastic arms, with so that this keycap moves up and down with respect to this reflector, each elastic arm comprises an interior fixing arm, an outer movable arm and one jiao of transition part, and this angle transition part is connected between this interior fixing arm and this outer movable arm.
11. illuminated keyboards as claimed in claim 4, wherein this at least one button also comprises multiple elastic arms, with so that this keycap move up and down with respect to this reflector; Wherein, each elastic arm comprises that a stiff end is connected in this supporting bracket and a free end is connected in this keycap.
12. illuminated keyboards as claimed in claim 1, wherein this sensor circuit pattern comprises at least one the first polar circuit pattern and at least one the second polar circuit pattern, and in the time that this sensor circuit pattern is energized, between this at least one first polar circuit pattern and this at least one the second polar circuit pattern, produce an electric field; Wherein, when this at least one button is touched, when this sensor circuit pattern, this electric field changes and makes this sensor circuit layer produce this at least one contactless push button signalling.
13. illuminated keyboards as claimed in claim 1, also comprise a metal base plate, are arranged at this sensor circuit layer below.
14. illuminated keyboards as claimed in claim 1, wherein this at least one light-emitting component is a light-emitting diode.
15. illuminated keyboards as claimed in claim 1, this illuminated keyboard is a capacitor induction type illuminated keyboard.
16. illuminated keyboards as claimed in claim 1, wherein this light guide sheet is made by polyethylene terephthalate material, Merlon material, thermoplastic polyurethanes or acryl plastic cement material.
17. illuminated keyboards as claimed in claim 1, wherein this sensor circuit pattern is formed at the upper surface in this reflector, or this sensor circuit pattern is formed at the lower surface in this reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483037.5A CN103839721A (en) | 2012-11-23 | 2012-11-23 | Light-emitting keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483037.5A CN103839721A (en) | 2012-11-23 | 2012-11-23 | Light-emitting keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103839721A true CN103839721A (en) | 2014-06-04 |
Family
ID=50803119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210483037.5A Pending CN103839721A (en) | 2012-11-23 | 2012-11-23 | Light-emitting keyboard |
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| Country | Link |
|---|---|
| CN (1) | CN103839721A (en) |
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Application publication date: 20140604 |