CN103137368A - Light-emitting keyboard - Google Patents
Light-emitting keyboard Download PDFInfo
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- CN103137368A CN103137368A CN 201110373613 CN201110373613A CN103137368A CN 103137368 A CN103137368 A CN 103137368A CN 201110373613 CN201110373613 CN 201110373613 CN 201110373613 A CN201110373613 A CN 201110373613A CN 103137368 A CN103137368 A CN 103137368A
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Abstract
The invention relates to a light-emitting keyboard which comprises a plurality of keys, a film switch circuit and a light-emitting module for generating light beams. The film switch circuit is triggered to generate signals by the keys and comprises a plurality of light-guiding areas, wherein at least one light-guiding area in the plurality of light-guiding areas has a light-guiding structure, and no light-guiding structure is arranged in the at least one light-guiding area corresponding to the key contact position of the keys. Therefore, the light beams generated by the light-guiding module cannot be blocked by the key contact and be wasted.
Description
Technical field
The present invention especially has the illuminated keyboard of lighting function about a kind of keyboard.
Background technology
Keyboard is the computer peripheral apparatus of commonly using, in order to input characters or instruction to computer.See also Fig. 1, it is the surface structure schematic diagram of existing keyboard.Have a plurality of buttons 10 on the surface of existing keyboard 1, those buttons 10 are classified as general key 101, numerical key 102 and function key 103 etc., those buttons press with finger for users and produce corresponding signal and give computer, make computer carry out touched keypress function, such as general key 101 in order to symbols such as inputting English letters, numerical key 102 is in order to input numeral, and function key 103 is in order to provide various functions, such as F1～F12 etc.
Along with the evolution of science and technology, keyboard manufacturer is devoted to research and develop various keyboards with specific function satisfying different users's various demands, take illuminated keyboard with lighting function as example.The outward appearance of existing illuminated keyboard and the outward appearance of existing keyboard 1 are roughly the same, but the function of key light emitting is provided because of illuminated keyboard, therefore its internal structure is different from existing not luminous keyboard.Below explanation has the internal structure of illuminated keyboard now.See also Fig. 2, it is the structural profile schematic diagram of existing illuminated keyboard.Existing illuminated keyboard 2 comprises a plurality of buttons 20, a film switch circuit 21, a light guide plate 22, a light emitting module 23, a main circuit board 24, a reflector plate 25 and a base 26.Button 20 comprises a button cap 201, a button housing 202 and an elastomer 203.In existing illuminated keyboard 2, basipetal the putting in order of above-mentioned each element is button cap 201, button housing 202, elastomer 203, film switch circuit 21, light guide plate 22, reflector plate 25 and base 26, main circuit board 24 is positioned at a side of film switch circuit 22, and light emitting module 23 is positioned at the opposite side of film switch circuit 22.
In button 20, button cap 201 is revealed in outside existing illuminated keyboard 2 and can be pressed by the user, button housing 202 is in order to fixedly button cap 201 and elastomer 203, and elastomer 203 passes button housing 202 and contacts with button cap 201 and film switch circuit 21 respectively.Film switch circuit 21 comprises wiring board 211 on, a separator 212 and wiring board 213 once, it is all made with transparent material wherein going up wiring board 211, separator 212 and lower wiring board 213, and transparent material is Merlon (Polycarbonate, PC) or the material such as polyethylene (polyethylene, PE).Upper wiring board 211 has a plurality of upper contacts 2111, separator 212 is positioned at the below of wiring board 211, and have a plurality of separator perforates 2121 corresponding to a plurality of upper contacts 2111, and once wiring board 213 is positioned at the below of separator 212, has corresponding to a plurality of lower contact 2131 of a plurality of upper contacts 2111 to form a plurality of press-button contacts with a plurality of upper contacts 2111.In addition, but film switch circuit 21 is connected in main circuit board 24 and transferring electric power and signal.
In Fig. 2, the reflector plate 25 of existing illuminated keyboard 2 is positioned at the below of light guide plate 22, in order to reflect many light beams, base 26 is positioned at the below of reflector plate 25, in order to carry button cap 201, button housing 202, elastomer 203, film switch circuit 21, light guide plate 22 and reflector plate 25.
In addition, in existing illuminated keyboard 2, has a transmission region 2011 on button cap 201, and transmission region 2011 is the position at letter or symbol place, wherein the position of transmission region 2011 is corresponding to the leaded light zone 221 on light guide plate 22, so that light beam sees through the leaded light site 2211 in leaded light zone 221 and is directed to its transmission region 2011.By this, letter or the symbol on its button cap 201 is able to printing opacity and has illumination effect.
Yet, existing illuminated keyboard 2 is through after long-time the use, its a plurality of buttons 20 are because of the frequent touched a plurality of leaded lights site 2211 that wears away on light guide plate 222, owing to all having space G between every two leaded light sites 2211, the probability that makes the fringe region of each leaded light site 2211 be worn away is quite high, its abrasion situation in the leaded light zone 221 edge especially serious, therefore a plurality of leaded lights site 2211 becomes skewness and undermines its light guide effect.In addition, as shown in Figure 2, on vertical direction, the press-button contact on film switch circuit 21 can be overlapping with part leaded light site 2211, make by the light beam of leaded light site 2211 guiding and can partly be covered by press-button contact, so the light quantity of light beam is wasted and undermines its light beam utilization rate.
Summary of the invention
The technical problem to be solved in the present invention is, for the prior art above shortcomings, provides a kind of illuminated keyboard of not wasting the light quantity of light beam.
The technical solution adopted for the present invention to solve the technical problems is to provide a kind of illuminated keyboard, it comprises a plurality of buttons, film switch circuit, light emitting module and light guide plate, wherein, this film switch circuit has a plurality of press-button contacts, and each this press-button contact is corresponding to this button; This light emitting module is positioned at a side of this film switch circuit, in order to produce many light beams; This light guide plate is stacked and placed on this film switch circuit and is positioned at the below of this film switch circuit, this light guide plate comprises that a plurality of leaded lights are regional, this a plurality of leaded lights zone is arranged on the bottom surface of this light guide plate and this at least one leaded light zone in this a plurality of leaded lights zones has light guide structure, this light guide structure is positioned at the below of this corresponding press-button contact, and this light guide structure is projected to this a plurality of buttons in order to these many light beams of guiding; Wherein in this at least one leaded light zone, the position corresponding to this press-button contact is not provided with this light guide structure.
Preferably, this light guide structure is to be formed by light guide ink, and this light guide structure is to be filled on this at least one leaded light zone and the optical waveguide layer that forms or be uniformly distributed on this at least one leaded light zone and the leaded light site that forms by this light guide ink by this light guide ink.
Preferably, this light guide plate comprises that also a plurality of another leaded lights are regional, this a plurality of another leaded lights zone be arranged on this bottom surface of this light guide plate and at least one another leaded light zone in this a plurality of another leaded lights zones adjacent to this press-button contact, this at least one another leaded light zone has another light guide structure, be projected to this a plurality of buttons in order to these many light beams of guiding, and in this at least one another leaded light zone, the position corresponding to this press-button contact is not provided with this another light guide structure.
Preferably, illuminated keyboard of the present invention also comprises main circuit board and base, and this main circuit board is connected in this film switch circuit and this light emitting module, gives this film switch circuit and this light emitting module in order to an electric power to be provided; This base is arranged at the below of this light guide plate, in order to these a plurality of buttons of carrying, this film switch circuit, this light emitting module, this light guide plate and this main circuit board.
Preferably, this light emitting module comprises luminous circuit board and a plurality of light-emitting component, and this luminous circuit board is positioned at this side of this film switch circuit, in order to another electric power to be provided; These a plurality of light-emitting components are arranged on this luminous circuit board and obtain this another electric power and produced this many light beams.
Preferably, this film switch circuit comprises wiring board, separator and lower wiring board, and on this, wiring board has a plurality of upper contacts; This separator is positioned at the below of wiring board on this, and this separator has a plurality of separator perforates corresponding to these a plurality of upper contacts, and these a plurality of separator perforates are in order to be stretched into by these a plurality of upper contacts when this film switch circuit is touched; This time wiring board is positioned at the below of this separator, has corresponding to a plurality of lower contact of these a plurality of upper contacts to form these a plurality of press-button contacts with these a plurality of upper contacts.
The present invention also provides a kind of illuminated keyboard, it comprises a plurality of buttons, film switch circuit and light emitting module, wherein, this film switch circuit has a plurality of press-button contacts and a plurality of leaded light is regional, each this press-button contact is corresponding to each this button, this at least one leaded light zone that this a plurality of leaded lights zone is arranged in the bottom surface of this film switch circuit and this a plurality of leaded lights zones has light guide structure, this light guide structure is positioned at the below of this corresponding press-button contact, and this light guide structure is projected to this a plurality of buttons in order to these many light beams of guiding; Wherein in this at least one leaded light zone, the position corresponding to this press-button contact is not provided with this light guide structure; This light emitting module is positioned at a side of this film switch circuit, is projected to this a plurality of leaded lights zone and is directed to this a plurality of buttons in order to produce many light beams and this many light beams.
Preferably, this light guide structure is to be formed by light guide ink, and this light guide structure is to be filled on this at least one leaded light zone and the optical waveguide layer that forms or be uniformly distributed on this at least one leaded light zone and the leaded light site that forms by this light guide ink by this light guide ink.
Preferably, this film switch circuit comprises that also a plurality of another leaded lights are regional, this a plurality of another leaded lights zone be arranged on this bottom surface of this film switch circuit and at least one another leaded light zone in this a plurality of another leaded lights zones adjacent to this press-button contact, this at least one another leaded light zone has another light guide structure, be projected to this a plurality of buttons in order to these many light beams of guiding, and in this at least one another leaded light zone, the position corresponding to this press-button contact is not provided with this another light guide structure.
Preferably, this film switch circuit comprises wiring board, separator and lower wiring board, and on this, wiring board has a plurality of upper contacts; This separator is positioned at the below of wiring board on this, and this separator has a plurality of separator perforates corresponding to these a plurality of upper contacts, and these a plurality of separator perforates are in order to be stretched into by these a plurality of upper contacts when this film switch circuit is touched; This time wiring board is positioned at the below of this separator, have corresponding to a plurality of lower contact and this a plurality of leaded lights of these a plurality of upper contacts regional, these a plurality of lower contacts with should be a plurality of these a plurality of press-button contacts of upper contacts formation, and this a plurality of leaded lights zones is arranged on the bottom surface of this time wiring board.
Preferably, illuminated keyboard of the present invention also comprises main circuit board and base plate, and this main circuit board is connected in this film switch circuit and this light emitting module, gives this film switch circuit and this light emitting module in order to an electric power to be provided; This base plate is arranged at the below of this light guide plate, in order to these a plurality of buttons of carrying and this film switch circuit.
Preferably, each this button comprises button cap, scissor Connection Element and elastomer, and this button cap is revealed in a surface of this illuminated keyboard, and this button cap has the transmission region corresponding to each this leaded light zone; This scissor Connection Element is between this base plate and this button cap, in order to connect this printing opacity center and this button cap and this button cap is moved up and down with respect to this base plate; This elastomer is between this film switch circuit and this button cap, and when this button cap was touched, this elastomer was compressed and support this film switch circuit, and this upper contact is contacted with this time contact; And when this button cap was no longer touched, this elastomer provided an elastic force to give this button cap, and this button cap is resetted.
Preferably, this light emitting module comprises luminous circuit board and a plurality of light-emitting component, and this luminous circuit board is positioned at this side of this film switch circuit, in order to another electric power to be provided; These a plurality of light-emitting components are arranged on this luminous circuit board and obtain this another electric power and produced this many light beams.
Illuminated keyboard of the present invention mainly utilizes light guide structure to carry out leaded light, and its light guide structure is not overlapping with press-button contact, make light guide structure when the guiding light beam, light beam can not stopped by press-button contact and waste, and therefore can guarantee illumination effect and the light beam utilization rate of illuminated keyboard.
Description of drawings
Fig. 1 is the surface structure schematic diagram of existing keyboard.
Fig. 2 is the structural profile schematic diagram of existing illuminated keyboard.
Fig. 3 is the structure schematic top plan view of the light guide plate of existing illuminated keyboard.
Fig. 4 is the structural profile schematic diagram of illuminated keyboard the first preferred embodiment of the present invention.
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram of film switch circuit, light guide plate and the light emitting module of illuminated keyboard the first preferred embodiment of the present invention.
Fig. 6 is the STRUCTURE DECOMPOSITION schematic diagram of film switch circuit, light guide plate and the light emitting module of illuminated keyboard the second preferred embodiment of the present invention.
Fig. 7 is the structural profile schematic diagram of illuminated keyboard the 3rd preferred embodiment of the present invention.
Fig. 8 is the film switch circuit of illuminated keyboard the 3rd preferred embodiment of the present invention and the STRUCTURE DECOMPOSITION schematic diagram of light emitting module.
Fig. 9 is the film switch circuit of illuminated keyboard the 4th preferred embodiment of the present invention and the STRUCTURE DECOMPOSITION schematic diagram of light emitting module.
Embodiment
In view of the defective of prior art, the invention provides a kind of illuminated keyboard.See also Fig. 4, it is for the structural profile schematic diagram of illuminated keyboard the first preferred embodiment of the present invention.Illuminated keyboard 3 comprises a plurality of buttons 30, a film switch circuit 31, a light guide plate 32, a light emitting module 33, a main circuit board 34, a reflector plate 35 and a base 36.Each button 30 comprises a button cap 301, a button housing 302 and an elastomer 303.In illuminated keyboard 3, basipetal the putting in order of above-mentioned each element is button cap 301, button housing 302, elastomer 303, film switch circuit 31, light guide plate 32, reflector plate 35 and base 36, light emitting module 33 is positioned at a side of film switch circuit 31, and main circuit board 34 is positioned at the opposite side of film switch circuit 31.In this preferred embodiment, illuminated keyboard 3 is keyboards that the desktop PC is used, and a side of film switch circuit 31 is the upper side (side with function key F1) of film switch circuit 31, and the opposite side of film switch circuit 31 is the lower side of film switch circuit 31 (side with space bar).
In button 30, button cap 301 is revealed in outside illuminated keyboard 3 and can be pressed by the user, and button cap 301 has a transmission region 301, that is the position at letter or symbol place.Button housing 302 is in order to fixedly button cap 301 and elastomer 303, and elastomer 303 passes button housing 302 and contacts with button cap 301 and film switch circuit 31 respectively, and in this preferred embodiment, elastomer 303 is made with printing opacity rubber.But film switch circuit 31 is connected in main circuit board 34 and transferring electric power and signal.
Next see also Fig. 5, it is the STRUCTURE DECOMPOSITION schematic diagram of film switch circuit, light guide plate and the light emitting module of illuminated keyboard the first preferred embodiment of the present invention.Film switch circuit 31 comprises wiring board 311 on, a separator 312 and wiring board 313 once.Upper wiring board 311 has a plurality of upper contacts 3111, separator 312 is positioned at the below of wiring board 311, and have a plurality of separator perforates 3121 corresponding to a plurality of upper contacts 3111, and once wiring board 313 is positioned at the below of separator 312, has corresponding to a plurality of lower contact 3131 of a plurality of upper contacts 3111 to form a plurality of press-button contacts with a plurality of upper contacts 3111.In this preferred embodiment, upper wiring board 311, separator 312 and lower wiring board 313 are all made with transparent material, and transparent material is the materials such as Merlon (Polycarbonate, PC) or polyethylene (polyethylene, PE).
In Fig. 4 and Fig. 5, light emitting module 33 comprises a luminous circuit board 331 and a plurality of light-emitting component 332, luminous circuit board 331 is positioned at a side of film switch circuit 31, in order to providing another electric power to give a plurality of light-emitting components 332, and a plurality of light-emitting component 332 is arranged on luminous circuit board 331 and obtain another electric power and produced many light beams.Light guide plate 32 has a plurality of leaded lights zone 321, has light guide structure 3211 at least one leaded light zone 321 in a plurality of leaded lights zone 321, and at least one leaded light zone 321 is adjacent to corresponding press-button contact, and light guide structure 3211 is in order to guide many light beams to make it be projected to a plurality of buttons 30.In this preferred embodiment, luminous circuit board 331 is rigid circuit board (Rigid Printed Circuit, RPC), a plurality of light-emitting components 332 are side-lighting type light-emitting diode, and a plurality of leaded lights zone 321 is not one to one corresponding to press-button contact, and light guide structure 3211 is to be filled at least one leaded light zone 321 and the optical waveguide layer that forms by light guide ink, makes at least one leaded light zone 321 be filled up by optical waveguide layer 3211 and not have the space.At least one leaded light zone 321 and corresponding optical waveguide layer 3211 are rectangle.In other preferred embodiment, luminous circuit board 331 also can adopt flexible circuit board (Flexible Printed Circuit, FPC).
What need special instruction has three, first, be arranged at a side of film switch circuit 31 due to a plurality of light-emitting components 332, making can be by the light beam irradiates of larger light quantity close to a plurality of light-emitting component 332 parts, therefore, close to the adjacent place of a plurality of press-button contacts of a side of film switch circuit 31, leaded light zone 321 can not need be set, and a large amount of light beams can be projected to corresponding button 30 and make it have illumination effect.Area close to set a plurality of leaded lights zone 321, the adjacent place of a plurality of press-button contacts of the opposite side of film switch circuit 31 is larger, and the area in the corresponding a plurality of leaded lights of a plurality of press-button contacts zone 321 between the opposite side of a side of film switch circuit 31 and film switch circuit 31 is along with larger and become large with the distance of a plurality of light-emitting components 332, so that illuminated keyboard 3 has uniform illumination effect.Certainly, also can adopt existing leaded light site to be uniformly distributed on the leaded light zone with mode of printing close to the leaded light zone of a plurality of light-emitting components 332, and non-limiting light guide structure only can be used in the optical waveguide layer that fills up on the leaded light zone.
The forming process of the 2nd, optical waveguide layer 3211 and existing leaded light site are quite similar: a web plate that will have rectangular opening is covered in the bottom surface 322 of light guide plate 32, and light guide ink is poured in web plate, light guide ink is flow to by rectangular opening on the bottom surface 322 of light guide plate 32, and light guide ink is carried out print routine, make light guide ink form the optical waveguide layer 3211 of rectangular shape on its bottom surface 322.Optical waveguide layer 3211 is to be filled in rectangular opening by light guide ink to be formed, therefore at least one leaded light zone 321 in a plurality of leaded lights zone 321 is filled up by optical waveguide layer 3211 and do not have the space.The 3rd, a plurality of leaded lights zone 321 be positioned on the bottom surface 322 of light guide plate 32 and leaded light zone 321 not overlapping with press-button contact adjacent to corresponding press-button contact, that is in leaded light zone 321, the position corresponding to press-button contact is not provided with light guide structure 3211 (being optical waveguide layer), can do not stopped by press-button contact and waste when therefore many light beams are by optical waveguide layer 3211 guiding, make the light beam utilization rate can not reduce.
In Fig. 4, reflector plate 35 is positioned at the below of light guide plate 32, in order to reflect many light beams, base 36 is positioned at the below of reflector plate 35, in order to carry button cap 301, button housing 302, elastomer 303, film switch circuit 31, light guide plate 32 and reflector plate 35.According to the structure of above-mentioned illuminated keyboard 3 as can be known, when button cap 301 is pressed by the user, button cap 301 can move up and down with respect to button housing 302, and elastomer 303 is compressed by button cap 301 and supports film switch circuit 31, make its upper contact 3111 stretch into corresponding separator perforate 3121 and with 3131 contacts of corresponding lower contact, to produce signal.And when button cap 301 was no longer pressed by the user, compressed elastomer 303 restored to the original state and provides an elastic force to give button cap 301, and button cap 301 is resetted.And when a plurality of light-emitting components 332 of light emitting module 33 produce many light beams, many the light beam projection enters in light guide plate 32, segment beam is projected to the transmission region 3011 of button cap 301 by the guiding of a plurality of optical waveguide layers 3211 of light guide plate 32, segment beam is positioned at reflector plate 35 reflections of light guide plate 32 belows and by another optical waveguide layer 3211 guiding.
According to as can be known above-mentioned, the optical waveguide layer 3211 of this preferred embodiment is the full wafer rectangle, and its fringe region is four limits of its rectangle.Compare with a plurality of leaded lights site 2211 on existing leaded light zone 221, the optical waveguide layer 3211 of rectangle is not because having the space, make the fringe region of optical waveguide layer 3211 be four limits of its rectangle, and its fringe region is less than the fringe region of existing a plurality of leaded lights site 2211, so the optical waveguide layer 3211 of this preferred embodiment is difficult for being worn away because colliding for a long time.In addition, because the optical waveguide layer 3211 of this preferred embodiment is rectangular shape, the web plate that uses in its printing forming process has the rectangular opening with regional 321 formed objects of leaded light, therefore in its printing forming process, light guide ink can be filled in rectangular opening easily, and after being completed for printing, light guide ink is difficult for residuing on the web plate with rectangular opening.Compare with the punctulate existing web plate of easy residual light guide ink tool thereon, due to the easy residual light guide ink of the punctulate web plate of existing tool, therefore when the existing punctulate web plate of tool of Reusability, want to be printed in part light guide ink on the leaded light zone and can originally be residued in light guide ink absorption on web plate and combination, make to be printed in the light guide ink quantity not sufficient on the leaded light zone and to affect its light guide effect.The printing forming process of the optical waveguide layer of this preferred embodiment is difficult for residual light guide ink because having larger rectangular opening, therefore can being filled on the leaded light zone, its light guide ink has good light guide effect, and the yield of its printing forming process is higher, and then reduces its cost.
On the other hand, a plurality of leaded lights zone 321 be positioned on the bottom surface 322 of light guide plate 32 and leaded light zone 321 not overlapping with press-button contact, can do not stopped by press-button contact during by optical waveguide layer 3211 guiding when many light beams, so light beam can fully be utilized and not reduce the light beam utilization rate.
Moreover the present invention more provides one second preferred embodiment.See also Fig. 6, it is the STRUCTURE DECOMPOSITION schematic diagram of film switch circuit, light guide plate and the light emitting module of illuminated keyboard the second preferred embodiment of the present invention.What the illuminated keyboard in the second preferred embodiment (not being shown in figure) was identical with the first preferred embodiment is that it comprises a plurality of buttons (not being shown in figure), a film switch circuit 41, a light guide plate 42, a light emitting module 43, a main circuit board (not being shown in figure), a reflector plate (not being shown in figure) and a base (not being shown in figure).Film switch circuit 41 comprises wiring board 411 on, a separator 412 and wiring board 413 once.Upper wiring board 411 has a plurality of upper contacts 4111, separator 412 is positioned at the below of wiring board 411, and have a plurality of separator perforates 4121 corresponding to a plurality of upper contacts 4111, and lower wiring board 413 is positioned at the below of separator 412, has corresponding to a plurality of lower contact 4131 of a plurality of upper contacts 4111 to form a plurality of press-button contacts with a plurality of upper contacts 4111.Light emitting module 43 comprises a luminous circuit board 431 and a plurality of light-emitting component 432, luminous circuit board 431 is positioned at a side of film switch circuit 41, in order to providing another electric power to give a plurality of light-emitting components 432, and a plurality of light-emitting component 432 is arranged on luminous circuit board 431 and obtain another electric power and produced many light beams.
and with the first preferred embodiment difference, the light guide plate 42 of this preferred embodiment has a plurality of leaded lights zone 421 and corresponding a plurality of another leaded lights zone 422, at least one another leaded light zone in this a plurality of another leaded lights zone is adjacent to this press-button contact, and has light guide structure 4211 at least one leaded light zone in a plurality of leaded lights zone 421 421, and has another light guide structure 4221 at least one another leaded light zone 422 in a plurality of another leaded lights zone 422, a plurality of leaded lights zone 421 and a plurality of another leaded lights zone 422 are not one to one corresponding to press-button contact, wherein on vertical direction, at least one leaded light zone 421 and at least one another leaded light zone 422 are that part is overlapping with press-button contact.
Reduce for fear of the light beam utilization rate, position (that is position overlapping with press-button contact, leaded light zone 421) corresponding to press-button contact at least one leaded light zone 421 is not provided with light guide structure 4211, make light guide structure 4211 form breach corresponding to the part press-button contact that is the breach of quadrant in leaded light zone 421.In like manner, position (that is another position overlapping with press-button contact, leaded light zone 422) corresponding to press-button contact at least one another leaded light zone 422 is not provided with another light guide structure 4221, make another light guide structure 4221 form breach corresponding to the part press-button contact in another leaded light zone 422, that is the breach of quadrant, as shown in Figure 6.In this preferred embodiment, light guide structure 4211 is to be filled at least one leaded light zone 421 and the optical waveguide layer that forms by light guide ink, make at least one leaded light zone 421 be filled up by optical waveguide layer 4211 and not have the space, and another light guide structure 4221 is to be uniformly distributed at least one another leaded light zone 421 and leaded light site that forms by light guide ink.Therefore, the light beam of illuminated keyboard of the present invention can fully be utilized and not reduce the light beam utilization rate.
Moreover the present invention more provides one the 3rd preferred embodiment.See also Fig. 7, it is for the structural profile schematic diagram of illuminated keyboard the 3rd preferred embodiment of the present invention.Illuminated keyboard 5 comprises a plurality of buttons 50, a film switch circuit 51, a light emitting module 52, a main circuit board 53, a reflector plate 54 and a base plate 55.Button 50 comprises a button cap 501, a scissor Connection Element 502 and an elastomer 503.In illuminated keyboard 5, basipetal the putting in order of above-mentioned each element is button cap 501, scissor Connection Element 502, elastomer 503, film switch circuit 51, reflector plate 54 and base plate 55, light emitting module 52 is positioned at a side of film switch circuit 51, and main circuit board 53 is positioned at the opposite side of film switch circuit 51.In this preferred embodiment, illuminated keyboard 5 is keyboards that notebook computer is used, and a side of film switch circuit 51 is the upper side (side with function key F1) of film switch circuit 51, and the opposite side of film switch circuit 51 is the lower side of film switch circuit 51 (side with space bar).
In button 50, button cap 501 is revealed in the outer of illuminated keyboard 5 and can be pressed by the user, and button cap 501 has transmission region 5011, that is the position at letter or symbol place.Scissor Connection Element 502 is between this base plate 55 and this button cap 501, in order to connect button cap 501 and base plate 55 and this button cap 501 moved up and down with respect to this base plate, and elastomer 503 passes scissor Connection Element 502 and contacts with button cap 501 and film switch circuit 51 respectively between this film switch circuit 51 and this button cap 501.But film switch circuit 51 is connected in main circuit board 53 and transferring electric power and signal.
Next see also Fig. 8, it is the film switch circuit of illuminated keyboard the 3rd preferred embodiment of the present invention and the STRUCTURE DECOMPOSITION schematic diagram of light emitting module.Film switch circuit 51 comprises wiring board 511 on, a separator 512 and wiring board 513 once.Upper wiring board 511 has a plurality of upper contacts 5111, and separator 512 is positioned at the below of wiring board 511, and has a plurality of separator perforates 5121 corresponding to a plurality of upper contacts 5111.And lower wiring board 513 is positioned at the below of separator 512, has corresponding to a plurality of lower contact 5131 of a plurality of upper contacts 5111 and a plurality of leaded lights zone 5132, and a plurality of lower contacts 5131 form a plurality of press-button contacts with a plurality of upper contacts 5111.When this button cap 501 was touched, this elastomer 503 was compressed and support this film switch circuit 51, and this upper contact 5111 is contacted with this time contact 5131; And when this button cap 501 was no longer touched, this elastomer 503 provided an elastic force to give this button cap 501, and this button cap 501 is resetted.A plurality of leaded lights zone 5132 is arranged on the bottom surface (that is bottom surface 5133 of lower wiring board) of film switch circuit 51, has a light guide structure 5132A at least one leaded light zone 5132 in a plurality of leaded lights zone 5132, and at least one leaded light zone 5132 is adjacent to corresponding press-button contact, and light guide structure 5132A is in order to guide many light beams to be projected to a plurality of buttons 50.Wherein on vertical direction, at least one leaded light zone 5132 is that part is overlapping with press-button contact.
In this preferred embodiment, a plurality of leaded lights zone 5132 is one to one corresponding to press-button contact, but also can be non-one to one corresponding to press-button contact.Light guide structure 5132A is filled at least one leaded light zone 5132 and the optical waveguide layer that forms by light guide ink, makes at least one leaded light zone 5132 be filled up by optical waveguide layer 5132A and not have the space.At least one leaded light zone 5132 and corresponding optical waveguide layer 5132A are rectangle.Upper wiring board 511 and separator 512 are all made with transparent materials such as Merlon or polyethylene, lower wiring board 513 is with Merlon (Polycarbonate, PC) or the optical material such as acryl plastics (Polymethyl Methacrylate, PMMA) made.Forming process as for optical waveguide layer 5132A is to utilize light guide ink to carry out print routine on the bottom surface 5133 of lower wiring board 513, and its operation situation and the first preferred embodiment are identical and repeat no more.
What need special instruction has two, first, should include separately the perforate of being passed by base plate 55 on upper wiring board 511, separator 512 and lower wiring board 513, but high-visible for the cleaning of drawing and optical waveguide layer, and omit those perforates of being passed by base plate 55 in Fig. 8.Second, similar to the second preferred embodiment, reduce for fear of the light beam utilization rate, position (that is position overlapping with press-button contact, leaded light zone 5132) corresponding to press-button contact at least one leaded light zone 5132 is not provided with light guide structure 5132A, make light guide structure 5132A form breach corresponding to the part press-button contact in leaded light zone 5132, that is the breach of semicircle, as shown in Figure 8.Light beam can fully be utilized and not reduce the light beam utilization rate by this.
In Fig. 7 and Fig. 8, light emitting module 52 comprises a luminous circuit board 521 and a plurality of light-emitting component 522, luminous circuit board 521 is positioned at a side of film switch circuit 51 and is connected in film switch circuit 51, in order to provide another electric power to give a plurality of light-emitting components 522, and a plurality of light-emitting components 522 are arranged on luminous circuit board 521 and obtain another electric power and produced many light beams, in this preferred embodiment, a plurality of light-emitting components 522 are side-lighting type light-emitting diode, and luminous circuit board 521 is a flexible circuit board.Reflector plate 54 is positioned at the below of film switch circuit 51, in order to reflect many light beams, base plate 55 is positioned at the below of reflector plate 54, and be connected in scissor Connection Element 502, in order to carry button cap 501, scissor Connection Element 502, elastomer 503, film switch circuit 51 and reflector plate 54.Operation situation and the first preferred embodiment about illuminated keyboard 5 are identical, and no longer add explanation.Certainly, in other preferred embodiment, luminous circuit board 521 also can adopt rigid circuit board.
According to as can be known above-mentioned, the optical waveguide layer 5132A of this preferred embodiment has advantages of that be difficult for identical with the first preferred embodiment is worn away and can reduces costs, more because the optical waveguide layer 5132A of this preferred embodiment is arranged on the bottom surface 5133 of lower wiring board 513 of film switch circuit 51, the inner thickness that can reduce illuminated keyboard 5 therefore do not need additionally light guide plate to be set, and can simplify the internal structure of illuminated keyboard 5, not only make its assembling easier, also reduce its manufacturing cost.
In addition, the present invention more provides one the 4th preferred embodiment.See also Fig. 9, it is for the film switch circuit of illuminated keyboard the 4th preferred embodiment of the present invention and the STRUCTURE DECOMPOSITION schematic diagram of light emitting module.What the illuminated keyboard in the 4th preferred embodiment (not being shown in figure) was identical with the 3rd preferred embodiment is that it comprises a plurality of buttons (not being shown in figure), a film switch circuit 61, a light emitting module 62 (comprising luminous circuit board 621 and a plurality of light-emitting component 622), a main circuit board (not being shown in figure), a reflector plate (not being shown in figure) and a base (not being shown in figure).Film switch circuit 61 comprises wiring board 611 on, a separator 612 and wiring board 613 once, upper wiring board 611 has a plurality of upper contacts 6111, separator 612 is positioned at the below of wiring board 611, and has a plurality of separator perforates 6121 corresponding to a plurality of upper contacts 6111.And lower wiring board 613 is positioned at the below of separator 612, has corresponding to a plurality of lower contact 6131 of a plurality of upper contacts 6111 and a plurality of leaded lights zone 6132, and a plurality of lower contacts 6131 form a plurality of press-button contacts with a plurality of upper contacts 6111.The structure of all the other elements and annexation are all identical with the 3rd preferred embodiment, and repeat no more.
With the 3rd preferred embodiment difference, in the lower wiring board 613 of this preferred embodiment, a plurality of leaded lights zone 6132 is arranged on a bottom surface (that is bottom surface 6133 of lower wiring board) of film switch circuit 61, has a light guide structure 6132A at least one leaded light zone 6132 in a plurality of leaded lights zone 6132, and at least one leaded light zone 6132 is positioned at the below of corresponding press-button contact, light guide structure 6132A is in order to guide many light beams to be projected to a plurality of buttons, on vertical direction, at least one leaded light zone 6132 is overlapping with press-button contact, as shown in Figure 9.
In this preferred embodiment, a plurality of leaded lights zone 6132 is one to one corresponding to press-button contact, but also can be non-one to one corresponding to press-button contact.Light guide structure 6132A is filled at least one leaded light zone 6132 and the optical waveguide layer that forms by light guide ink, makes at least one leaded light zone 6132 be filled up by optical waveguide layer 6132A and not have the space.Reduce for fear of the light beam utilization rate, position (that is position overlapping with press-button contact, leaded light zone 6132) corresponding to press-button contact at least one leaded light zone 6132 is not provided with light guide structure 6132A, make light guide structure 6132A form perforate corresponding to press-button contact in leaded light zone 6132, that is circular perforate, as shown in Figure 9.Light beam can fully be utilized and not reduce the light beam utilization rate by this.
Comprehensive speech, illuminated keyboard of the present invention is mainly to utilize light guide structure and carry out leaded light, and light guide structure is not overlapping with press-button contact, makes light guide structure when the guiding light beam, light beam can not stopped by press-button contact and waste, and therefore can guarantee illumination effect and the light beam utilization rate of illuminated keyboard.
The above is only preferred embodiment of the present invention, is not to limit claim scope of the present invention, and therefore all other do not break away from the equivalence change of completing under disclosed spirit or modify, and all should be contained in scope of the present invention.
Claims (13)
1. an illuminated keyboard, is characterized in that, comprising:
A plurality of buttons;
Film switch circuit has a plurality of press-button contacts, and each this press-button contact is corresponding to this button;
Light emitting module is positioned at a side of this film switch circuit, in order to produce many light beams; And
Light guide plate, be stacked and placed on this film switch circuit and be positioned at the below of this film switch circuit, this light guide plate comprises that a plurality of leaded lights are regional, this a plurality of leaded lights zone is arranged on the bottom surface of this light guide plate and this at least one leaded light zone in this a plurality of leaded lights zones has light guide structure, this light guide structure is positioned at the below of this corresponding press-button contact, and this light guide structure is projected to this a plurality of buttons in order to these many light beams of guiding; Wherein in this at least one leaded light zone, the position corresponding to this press-button contact is not provided with this light guide structure.
2. illuminated keyboard as claimed in claim 1, it is characterized in that, this light guide structure is to be formed by light guide ink, and this light guide structure is to be filled on this at least one leaded light zone and the optical waveguide layer that forms or be uniformly distributed on this at least one leaded light zone and the leaded light site that forms by this light guide ink by this light guide ink.
3. illuminated keyboard as claimed in claim 1, it is characterized in that, this light guide plate comprises that also a plurality of another leaded lights are regional, this a plurality of another leaded lights zone be arranged on this bottom surface of this light guide plate and at least one another leaded light zone in this a plurality of another leaded lights zones adjacent to this press-button contact, this at least one another leaded light zone has another light guide structure, be projected to this a plurality of buttons in order to these many light beams of guiding, and in this at least one another leaded light zone, the position corresponding to this press-button contact is not provided with this another light guide structure.
4. illuminated keyboard as claimed in claim 1, is characterized in that, also comprises:
Main circuit board is connected in this film switch circuit and this light emitting module, gives this film switch circuit and this light emitting module in order to an electric power to be provided; And
Base is arranged at the below of this light guide plate, in order to these a plurality of buttons of carrying, this film switch circuit, this light emitting module, this light guide plate and this main circuit board.
5. illuminated keyboard as claimed in claim 1, is characterized in that, this light emitting module comprises:
Luminous circuit board is positioned at this side of this film switch circuit, in order to another electric power to be provided; And
A plurality of light-emitting components are arranged on this luminous circuit board and obtain this another electric power and produced this many light beams.
6. illuminated keyboard as claimed in claim 1, is characterized in that, this film switch circuit comprises:
Upper wiring board has a plurality of upper contacts;
Separator is positioned at the below of wiring board on this, and this separator has a plurality of separator perforates corresponding to these a plurality of upper contacts, and these a plurality of separator perforates are in order to be stretched into by these a plurality of upper contacts when this film switch circuit is touched; And
Lower wiring board is positioned at the below of this separator, has corresponding to a plurality of lower contact of these a plurality of upper contacts to form these a plurality of press-button contacts with these a plurality of upper contacts.
7. an illuminated keyboard, is characterized in that, comprising:
A plurality of buttons;
Film switch circuit, have a plurality of press-button contacts and a plurality of leaded light regional, each this press-button contact is corresponding to each this button, this at least one leaded light zone that this a plurality of leaded lights zone is arranged in the bottom surface of this film switch circuit and this a plurality of leaded lights zones has light guide structure, this light guide structure is positioned at the below of this corresponding press-button contact, and this light guide structure is projected to this a plurality of buttons in order to these many light beams of guiding; Wherein in this at least one leaded light zone, the position corresponding to this press-button contact is not provided with this light guide structure; And
Light emitting module is positioned at a side of this film switch circuit, is projected to this a plurality of leaded lights zone and is directed to this a plurality of buttons in order to produce many light beams and this many light beams.
8. illuminated keyboard as claimed in claim 7, it is characterized in that, this light guide structure is to be formed by light guide ink, and this light guide structure is to be filled on this at least one leaded light zone and the optical waveguide layer that forms or be uniformly distributed on this at least one leaded light zone and the leaded light site that forms by this light guide ink by this light guide ink.
9. illuminated keyboard as claimed in claim 7, it is characterized in that, this film switch circuit comprises that also a plurality of another leaded lights are regional, this a plurality of another leaded lights zone be arranged on this bottom surface of this film switch circuit and at least one another leaded light zone in this a plurality of another leaded lights zones adjacent to this press-button contact, this at least one another leaded light zone has another light guide structure, be projected to this a plurality of buttons in order to these many light beams of guiding, and in this at least one another leaded light zone, the position corresponding to this press-button contact is not provided with this another light guide structure.
10. illuminated keyboard as claimed in claim 7, is characterized in that, this film switch circuit comprises:
Upper wiring board has a plurality of upper contacts;
Separator is positioned at the below of wiring board on this, and this separator has a plurality of separator perforates corresponding to these a plurality of upper contacts, and these a plurality of separator perforates are in order to be stretched into by these a plurality of upper contacts when this film switch circuit is touched; And
Lower wiring board, be positioned at the below of this separator, have corresponding to a plurality of lower contact of these a plurality of upper contacts and this a plurality of leaded lights zones, these a plurality of lower contacts with should a plurality of these a plurality of press-button contacts of upper contacts formation, and this a plurality of leaded lights zones is arranged on the bottom surface of this time wiring board.
11. illuminated keyboard as claimed in claim 7 is characterized in that, also comprises:
Main circuit board is connected in this film switch circuit and this light emitting module, gives this film switch circuit and this light emitting module in order to an electric power to be provided; And
Base plate is arranged at the below of this light guide plate, in order to these a plurality of buttons of carrying and this film switch circuit.
12. illuminated keyboard as claimed in claim 11 is characterized in that, each this button comprises:
Button cap is revealed in a surface of this illuminated keyboard, and this button cap has the transmission region corresponding to each this leaded light zone;
Scissor Connection Element is between this base plate and this button cap, in order to connect this printing opacity center and this button cap and this button cap is moved up and down with respect to this base plate; And
Elastomer, between this film switch circuit and this button cap, when this button cap was touched, this elastomer was compressed and support this film switch circuit, and this upper contact is contacted with this time contact; And when this button cap was no longer touched, this elastomer provided an elastic force to give this button cap, and this button cap is resetted.
13. illuminated keyboard as claimed in claim 7 is characterized in that, this light emitting module comprises:
Luminous circuit board is positioned at this side of this film switch circuit, in order to another electric power to be provided; And
A plurality of light-emitting components are arranged on this luminous circuit board and obtain this another electric power and produced this many light beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110373613 CN103137368A (en) | 2011-11-22 | 2011-11-22 | Light-emitting keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110373613 CN103137368A (en) | 2011-11-22 | 2011-11-22 | Light-emitting keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103137368A true CN103137368A (en) | 2013-06-05 |
Family
ID=48497037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110373613 Pending CN103137368A (en) | 2011-11-22 | 2011-11-22 | Light-emitting keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103137368A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252988A (en) * | 2013-06-25 | 2014-12-31 | 致伸科技股份有限公司 | Light emitting keyboard device |
| CN104347298A (en) * | 2013-08-05 | 2015-02-11 | 致伸科技股份有限公司 | Light emitting keyboard |
| CN105761991A (en) * | 2013-06-25 | 2016-07-13 | 致伸科技股份有限公司 | Light-emitting keyboard device |
| WO2018068463A1 (en) * | 2016-10-12 | 2018-04-19 | 中兴通讯股份有限公司 | Flexible printed circuit and touch device |
| CN113853665A (en) * | 2019-11-14 | 2021-12-28 | 陈�峰 | Light guide plate optical switch and light guide plate array optical switch module |
-
2011
- 2011-11-22 CN CN 201110373613 patent/CN103137368A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252988A (en) * | 2013-06-25 | 2014-12-31 | 致伸科技股份有限公司 | Light emitting keyboard device |
| CN105761991A (en) * | 2013-06-25 | 2016-07-13 | 致伸科技股份有限公司 | Light-emitting keyboard device |
| CN104347298A (en) * | 2013-08-05 | 2015-02-11 | 致伸科技股份有限公司 | Light emitting keyboard |
| WO2018068463A1 (en) * | 2016-10-12 | 2018-04-19 | 中兴通讯股份有限公司 | Flexible printed circuit and touch device |
| CN113853665A (en) * | 2019-11-14 | 2021-12-28 | 陈�峰 | Light guide plate optical switch and light guide plate array optical switch module |
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Application publication date: 20130605 |