CN102737893B - Luminescent keyboard - Google Patents
Luminescent keyboard Download PDFInfo
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- CN102737893B CN102737893B CN201110088348.7A CN201110088348A CN102737893B CN 102737893 B CN102737893 B CN 102737893B CN 201110088348 A CN201110088348 A CN 201110088348A CN 102737893 B CN102737893 B CN 102737893B
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Abstract
The invention relates to a luminescent keyboard. The luminescent keyboard comprises a main circuit board, a membrane switch circuit and a luminescent circuit board, wherein the membrane switch circuit comprises a first overlap region and a bus and is connected with the main circuit board by utilizing the bus. The luminescent circuit board comprises a second overlap region connected with the first overlap region and is electrically connected with the main circuit board by utilizing the first overlap region and the second overlap region and the bus. The invention is advantaged in that circuit configuration is simple, and cost and internal thickness can be reduced.
Description
Technical field
The present invention, about a kind of keyboard, especially has the illuminated keyboard of lighting function.
Background technology
First, structure and the function of existing keyboard is described, refers to Fig. 1, it is the surface structure schematic diagram of existing keyboard.The surface of existing keyboard 1 has multiple button 10, those buttons 10 are classified as general key 101, numerical key 102 and function key 103 etc., those buttons produce corresponding signal to computer for user presses with finger, computer is made to perform touched keypress function, such as general key 101 is in order to symbols such as inputting English letters, numerical key 102 in order to input numeral, function key 103 then in order to provide various function, such as F1 ~ F12 etc.
Along with the evolution of science and technology, keyboard manufacturer is devoted to research and develop the various keyboard with specific function to meet the various demands of different users, illustrate for the illuminated keyboard with lighting function, the outward appearance of its existing illuminated keyboard is identical with the outward appearance of existing keyboard 1, therefore the main internal structure that existing illuminated keyboard is described.Refer to Fig. 2, it is the partial structurtes decomposing schematic representation of existing illuminated keyboard.Existing illuminated keyboard 2 comprises at least one button 20 (only showing in figure), metal base plate 21, film switch circuit 22, elastomer thin film 23, light-emitting film switching circuit 24 and a main circuit board 25.Button 20 comprises button cap 201, scissor Connection Element 202 and an elastomer 203.In existing illuminated keyboard 2, above-mentioned each element is basipetal to put in order as button cap 201, scissor Connection Element 202, elastomer 203, elastomer thin film 23, light-emitting film switching circuit 24, film switch circuit 22 and metal base plate 21, and main circuit board 25 is then positioned at the 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 user, scissor Connection Element 202 is in order to connect button cap 201 and metal base plate 21, and elastomer 203 passes scissor Connection Element 202 and contacts with button cap 201 and film switch circuit 22 respectively.Film switch circuit 22 has multiple circuit junctions 221,1 first transmission line 222 corresponding to multiple button 20 and one first bus 223.First transmission line 222 is connected to multiple circuit junction 221 and the first bus 223, and the first bus 223 is connected to main circuit board 25.Multiple circuit junction 221 is touched and produce signal and by the first transmission line 222 and the first bus 223 signal transmission to main circuit board 25 in response to multiple button 20.Electric power needed for film switch circuit 22 also obtains by the first transmission line 222 and the first bus 223.
Elastomer thin film 23 is between elastomer 203 and light-emitting film switching circuit 24, in order to fixing elastomer 203 thereon, and elastomer thin film 23 has a light shield layer 231, its elastomer 203 is fixed on elastomer thin film 23 by a viscose, and elastomer 203 is a printing opacity rubber.Light-emitting film switching circuit 24 comprises multiple light emitting source 241,1 second transmission line 242 and one second bus 243.Light emitting source 241 is in order to produce a light beam, second transmission line 242 is connected to light emitting source 241 and the second bus 243, and the second bus 243 is connected to main circuit board 25, in order to obtain electric power, wherein this electric power is transferred to light emitting source 241 by the second bus 243 and the second transmission line 242, makes light emitting source 241 obtain electric power and be produced light beam.
Existing illuminated keyboard 2 is quite similar with the internal structure of existing keyboard 1, both differences should only be that existing illuminated keyboard 2 additionally included light-emitting film switching circuit 24.Therefore, general keyboard manufactory additionally adds light-emitting film switching circuit 24 and forms existing illuminated keyboard 2 in existing keyboard 1, that is, existing keyboard 1 is that existing illuminated keyboard 2 then must just be able to signal transmission and electric power by the first bus 223 and the second bus 243 being connected to main circuit board 25 by being connected to the first bus 223 of main circuit board 25 and signal transmission and electric power.Additionally arrange in the existing illuminated keyboard 2 of light-emitting film switching circuit 24, its second transmission line 242 is except must being connected to the second bus 243, second transmission line 242 is more necessary avoids the first transmission line 222, makes its Circnit Layout comparatively complicated and is difficult to carry out circuit design.
Summary of the invention
The technical problem to be solved in the present invention is, for prior art above shortcomings, provides a kind of illuminated keyboard with ball bearing made using configuration.
Another technical problem that the present invention will solve is, for prior art above shortcomings, provides a kind of illuminated keyboard reduced costs.
The another technical problem that the present invention will solve is, for prior art above shortcomings, provides a kind of illuminated keyboard reducing its inner thickness.
The technical solution adopted for the present invention to solve the technical problems is to provide a kind of illuminated keyboard, it comprises main circuit board, film switch circuit, luminous circuit board and at least one button, wherein, this film switch circuit is connected to this main circuit board, this film switch circuit comprises being triggered and produces at least one press-button contact of signal, the first transmission line and bus, this first transmission line is connected to this press-button contact, and this first transmission line has the first overlapping regions; This bus is connected to this main circuit board and this first transmission line; This luminous circuit board is stacked and placed on this film switch circuit, and this luminous circuit board comprises at least one light emitting source and the second transmission line, and this at least one light emitting source is arranged on the first surface of this luminous circuit board, in order to produce light beam; This first surface that this second transmission line is arranged at this luminous circuit board is connected to this light emitting source, and this second transmission line has the second overlapping regions; This at least one button is positioned at the top of this film switch circuit and corresponds to this press-button contact, in order to trigger this film switch circuit; Wherein this first overlapping regions contacts with this second overlapping regions, makes this luminous circuit board obtain electric power by this bus, this first transmission line and this second transmission line.
Alternatively, this film switch circuit and this luminous circuit board by pressing in conjunction with this first overlapping regions and this second overlapping regions.
Alternatively, described illuminated keyboard also comprises conducting resinl, this conducting resinl is arranged in this first overlapping regions or this second overlapping regions, and this film switch circuit and this luminous circuit board are by hot pressing, make this conducting resinl hot melt, and this first overlapping regions is combined by this conducting resinl with this second overlapping regions.
Alternatively, described illuminated keyboard also comprises at least one elastomer, and this luminous circuit board also comprises light shield layer, and this light shield layer is arranged on second of this luminous circuit board, and in order to avoid light leak, wherein this at least one elastomer is arranged on this light shield layer.
Alternatively, described illuminated keyboard also comprises base plate, this film switch circuit and this button are arranged at this base plate, and this at least one button comprises at least one button cap, at least one scissor Connection Element and at least one elastomer, wherein, this at least one button cap is revealed in a surface of this illuminated keyboard; This at least one scissor Connection Element, between this base plate and this at least one button cap, connects this base plate and this at least one button cap and this at least one button cap is moved up and down relative to this base plate; This at least one elastomer is arranged on second of this luminous circuit board, and when this at least one button cap is touched, this at least one elastomer is supported this film switch circuit by compressing, and this film switch circuit is triggered; And when this at least one button cap is no longer touched, this at least one elastomer provides elastic force to this at least one button cap, this at least one button cap is resetted.
Alternatively, this film switch circuit also comprises wiring board, line plate and separator, and wherein, on this, wiring board has at least one upper contact, and this first transmission line, this first overlapping regions and this bus to be arranged on this on wiring board; This line plate is positioned at the side of wiring board on this, there is at least one lower contact corresponding to this at least one upper contact and the 3rd transmission line, this at least one upper contact and this at least one lower contact form at least one press-button contact, this lower contact contacts with this upper contact when this film switch circuit is touched and produces this signal, and the 3rd transmission line has the 3rd overlapping regions, the 3rd overlapping regions sets up the contact loop of wiring board and this line plate on this in order to contact with this first overlapping regions; This separator is on this between wiring board and this line plate, and this separator has at least one separator perforate corresponding to this at least one upper contact, and this at least one separator perforate is stretched into by this at least one upper contact when this film switch circuit is touched.
Alternatively, this film switch circuit also comprises wiring board, line plate and separator, and wherein, on this, wiring board has at least one upper contact and the 3rd transmission line, and the 3rd transmission line has the 3rd overlapping regions; This line plate is positioned at the side of wiring board on this, there is at least one lower contact corresponding to this at least one upper contact, and this at least one upper contact and this at least one lower contact form at least one press-button contact, this at least one lower contact contacts with this at least one upper contact when this film switch circuit is touched and produces this signal; Wherein this first transmission line, this first overlapping regions and this bus are arranged on this line plate, and this first overlapping regions contacts with the 3rd overlapping regions and sets up the contact loop of wiring board and this line plate on this; This separator is on this between wiring board and this line plate, and this separator has at least one separator perforate corresponding to this at least one upper contact, and this separator perforate is stretched into by this at least one upper contact when this film switch circuit is touched.
The present invention also provides a kind of illuminated keyboard, it comprises main circuit board, first line plate, the second wiring board, luminous circuit board and at least one button, wherein, this first line plate has at least one first contact, the first transmission line and bus, this first transmission line has the first overlapping regions, and this first contact and this first transmission line are connected to this bus, and this bus is connected to this main circuit board; This second wiring board is positioned at the side of this first line plate, has at least one second contact corresponding to this first contact, this second contact this first line plate or this second wiring board touched time and this first contacts; This luminous circuit board forms film switch circuit with this first line plate and this second wiring board between this first line plate and this second wiring board, this luminous circuit board comprises at least one separator perforate, at least one light emitting source and the second transmission line, wherein, this at least one separator perforate corresponds to this first contact and is stretched into by this at least one first contact or this at least one second contact when this film switch circuit is touched; This at least one light emitting source is arranged on the first surface of this luminous circuit board, in order to produce a light beam; This first surface that this second transmission line is arranged at this luminous circuit board is connected to this light emitting source, and this second transmission line has the second overlapping regions; This at least one button is positioned at the top of this first line plate and corresponds to this at least one first contact, in order to trigger this first line plate; Wherein this first overlapping regions contacts with this second overlapping regions, makes this luminous circuit board obtain electric power by this bus, this first transmission line and this second transmission line.
Alternatively, this first line plate and this luminous circuit board by pressing mode in conjunction with this first overlapping regions and this second overlapping regions.
Alternatively, described illuminated keyboard also comprises conducting resinl, and this conducting resinl is arranged in this first overlapping regions or this second overlapping regions, and this first line plate and this luminous circuit board are by hot pressing, make this conducting resinl hot melt, and this first overlapping regions is combined by this conducting resinl with this second overlapping regions.
Alternatively, this second wiring board also comprises the 3rd transmission line, and the 3rd transmission line has the 3rd overlapping regions, and the 3rd overlapping regions sets up the contact loop of this first line plate and this second wiring board in order to contact with this first overlapping regions; Wherein this first line plate is wiring board on, and this second wiring board is wiring board.
Alternatively, this second wiring board also comprises the 3rd transmission line, and the 3rd transmission line has the 3rd overlapping regions, and the 3rd overlapping regions sets up the contact loop of this first line plate and this second wiring board in order to contact with this first overlapping regions; Wherein this first line plate is wiring board, and this second wiring board is wiring board on.
Alternatively, described illuminated keyboard also comprises base plate, this first line plate, this second wiring board and this button are arranged on this base plate, and this at least one button comprises at least one button cap, at least one scissor Connection Element and at least one elastomer, wherein, this at least one button cap is revealed in a surface of this illuminated keyboard; This at least one scissor Connection Element, between this base plate and this at least one button cap, connects this base plate and this at least one button cap and this at least one button cap is moved up and down relative to this base plate; This at least one elastomer is arranged on an elastomer thin film of this illuminated keyboard, when this at least one button cap is touched, this at least one elastomer is supported this first line plate or this second wiring board by compressing, this first line plate or this second wiring board are triggered; And when this at least one button cap is no longer touched, this at least one elastomer provides an elastic force to this at least one button cap, this at least one button cap is resetted.
Illuminated keyboard of the present invention mainly utilizes the first overlapping regions on the second overlapping regions on luminous circuit board and film switch circuit or first line plate and in conjunction with the first transmission line on the second transmission line of luminous circuit board and film switch circuit or first line plate, luminous circuit board is made not need additionally arrange bus and main circuit board can be connected to by the first transmission line on film switch circuit or first line plate, to obtain required electric power.Therefore the cost that bus is additionally set can be saved.Moreover, because luminous circuit board must not arrange bus, and its second transmission line does not also need to be connected to bus, therefore, only need in luminous circuit board to design the circuit being connected to the second overlapping regions, make the Circnit Layout of luminous circuit board simple and circuit design can be carried out easily.In addition, illuminated keyboard of the present invention can change the arrangement mode of its inner member according to different demand, so that the structure and fuction of elastomer thin film is integrated on luminous circuit board, or by the structural integrity of separator on luminous circuit board, therefore the thickness of elastomer thin film or separator originally can be reduced, to reduce the internal height of illuminated keyboard.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of existing keyboard.
Fig. 2 is the partial structurtes decomposing schematic representation of existing illuminated keyboard.
Fig. 3 is the partial structurtes decomposing schematic representation of illuminated keyboard first of the present invention preferred embodiment.
Fig. 4 is the film switch circuit of illuminated keyboard first of the present invention preferred embodiment and the STRUCTURE DECOMPOSITION schematic diagram of luminous circuit board.
Fig. 5 is film switch circuit and the combined front structure schematic side view of luminous circuit board of illuminated keyboard first of the present invention preferred embodiment.
Fig. 6 be the film switch circuit of illuminated keyboard first of the present invention preferred embodiment and luminous circuit board combined after structure schematic side view.
Fig. 7 is the partial structurtes decomposing schematic representation of illuminated keyboard second of the present invention preferred embodiment.
Fig. 8 is the film switch circuit of illuminated keyboard second of the present invention preferred embodiment and the STRUCTURE DECOMPOSITION schematic diagram of luminous circuit board.
Fig. 9 is the partial structurtes decomposing schematic representation of illuminated keyboard of the present invention 3rd preferred embodiment.
Figure 10 is the partial structurtes decomposing schematic representation of illuminated keyboard of the present invention 4th preferred embodiment.
Embodiment
In view of the defect of prior art, the invention provides a kind of illuminated keyboard.Refer to Fig. 3, it is the partial structurtes decomposing schematic representation of illuminated keyboard first of the present invention preferred embodiment.Illuminated keyboard 3 comprises base plate 30, main circuit board 31, film switch circuit 32, luminous circuit board 33 and multiple button 34 (only showing in figure).Base plate 30 is positioned at the below of film switch circuit 32, luminous circuit board 33 and multiple button 34, in order to support film switching circuit 32, luminous circuit board 33 and multiple button 34.Each button 341 comprises button cap 341, scissor Connection Element 342 and an elastomer 343, and button cap 341 is revealed in the surface of illuminated keyboard 3, in order to be pressed by user.Scissor Connection Element 342 is between button cap 341 and luminous circuit board 33, in order to be connected to button cap 341 and base plate 30, and elastomer 343 is between button cap 341 and luminous circuit board 33, in order to support luminous circuit board 33 when button cap 341 is touched, the film switch circuit 32 of the below being positioned at luminous circuit board 33 is triggered, in this preferred embodiment, luminous circuit board 33 is a light-emitting film switching circuit, and elastomer 343 is with made by a printing opacity rubber.
Luminous circuit board 33 is stacked and placed on film switch circuit 32, and is positioned at the top of film switch circuit 32.Luminous circuit board 33 comprises multiple light emitting source 331,1 second transmission line 332 and light shield layer 333, and multiple light emitting source 331 is arranged on the first surface 334 of luminous circuit board 33, in order to produce light beam (not being shown in figure).Second transmission line 332 is arranged on the first surface 334 of luminous circuit board, and is connected to light emitting source 331, and the second transmission line 332 has one second overlapping regions 3321.Light shield layer 333 is arranged on the second face 335 of luminous circuit board, spilt (being called light leakage phenomena) by the gap between two button caps 341 in order to avoid light beam, and elastomer 343 is arranged on light shield layer 333, in this preferred embodiment, the first surface 334 of luminous circuit board is lower surface, and 335, its second face is upper surface.Main circuit board 31 is then arranged at the side of film switch circuit 32, and is connected to film switch circuit 32.
According to the structure of above-mentioned illuminated keyboard 3, when button cap 341 is pressed by user, scissor Connection Element 342 makes button cap 341 move up and down relative to base plate 30 in response to the touched strength of button cap 341, and elastomer 343 is supported luminous circuit board 33 by compressing, the press-button contact of the film switch circuit 32 be positioned at below luminous circuit board 33 is triggered.And when button cap 341 is no longer pressed by user, elastomer 343 provides an elastic force to button cap 341, button cap 341 is resetted.
The structure of following explanation film switch circuit 32.Refer to Fig. 4, it is the film switch circuit of illuminated keyboard first of the present invention preferred embodiment and the STRUCTURE DECOMPOSITION schematic diagram of luminous circuit board.Film switch circuit 32 to comprise on one wiring board 321, separator 322 and once wiring board 323, and upper wiring board 321 comprises and has multiple upper contact 3211,1 first transmission line 3212 and a bus 3213, and multiple upper contact 3211 and the first transmission line 3212 are arranged at the lower surface 3214 of wiring board 321.First transmission line 3212 is connected to multiple upper contact 3211, and the first transmission line 3212 has one first overlapping regions 3212A, and bus 3213 is connected to main circuit board 31 and the first transmission line 3212.Line plate 323 is positioned at the side of wiring board 321, there is the multiple lower contact 3231 corresponding to multiple upper contact 3211 and one the 3rd transmission line 3232, and multiple lower contact 3231 and the 3rd transmission line 3232 are arranged at the upper surface 3233 of line plate 323, therefore in Fig. 4, multiple lower contact 3231 and the 3rd transmission line 3232 show with solid line.Lower contact 3231 forms press-button contact with upper contact 3211, and lower contact 3231 produces signal in order to contact with upper contact 3211 when film switch circuit 32 is touched.And the 3rd transmission line 3232 has one the 3rd overlapping regions 3232A, the position of the 3rd overlapping regions 3232A corresponds to the position of the first overlapping regions 3212A of upper wiring board 321, and the 3rd overlapping regions 3232A sets up a contact loop (not being shown in figure) of wiring board 321 and line plate 323 in order to contact with the first overlapping regions 3212A.On the other hand, the position of the second overlapping regions 3321 of luminous circuit board 33 corresponds to the first overlapping regions 3212A of upper wiring board 321.As for separator 322, it is between upper wiring board 321 and line plate 323, and separator 322 has the multiple separator perforates 3221 corresponding to multiple upper contact 3211, in order to be inserted into wherein by upper contact 3211 when film switch circuit 32 is touched.
The situation that following explanation film switch circuit 32 is combined with luminous circuit board 33.Refer to Fig. 5, it is film switch circuit and the combined front structure schematic side view of luminous circuit board of illuminated keyboard first of the present invention preferred embodiment.Fig. 5 show wiring board 321, separator 322 and line plate 323 combined and formed film switch circuit 32, and luminous circuit board 33 is superimposed on film switch circuit 32, and this has a conducting resinl 35 between the two, conducting resinl 35 is arranged on the first overlapping regions 3212A of film switch circuit 32, in this preferred embodiment, conducting resinl 35 is an anisotropic conductive (AnisotropicConductive Film, ACF), and film switch circuit 32 be employing one hot pressing mode with the cohesive process of luminous circuit board 33 and combine both this.
In film switch circuit 32 with the cohesive process of luminous circuit board 33, hot pressing is carried out to film switch circuit 32 and luminous circuit board 33, make conducting resinl 35 hot melt be positioned on the first overlapping regions 3212A of film switch circuit 32, and the first overlapping regions 3212A on the conducting resinl 35 combination film switching circuit 32 of hot melt and the second overlapping regions 3321 on luminous circuit board 33, now, the first transmission line 3212 on film switch circuit 32 and the electric connection between the second transmission line 332 on luminous circuit board 33 are established, as shown in Figure 6.Therefore, the electric power E needed for luminous circuit board 33 can be transferred to multiple light emitting source 331 by main circuit board 31 (please refer to Fig. 3), bus 3213, first transmission line 3212 (including the first overlapping regions 3212A) and the second transmission line 332 (including the second overlapping regions 3321).
According to above-mentioned known, illuminated keyboard 3 in this preferred embodiment arranges the second overlapping regions 3321 on luminous circuit board 33, and utilize second overlapping regions 3321 of the first overlapping regions 3212A on film switch circuit 32 on luminous circuit board 33 to be combined, make luminous circuit board 33 not need extra setting to be connected to the bus of main circuit board 31, therefore illuminated keyboard 3 can save the cost additionally arranging bus.Do not need to be connected to bus due to its second transmission line 332 but be connected to film switch circuit 32, the circuit of luminous circuit board 33 and film switch circuit 32 are shared, and therefore the Circnit Layout of luminous circuit board 33 can be simplified.Moreover, illuminated keyboard 3 in this preferred embodiment is not provided with the elastomer thin film in order to fixing elastomer 343, but elastomer thin film and luminous circuit board 33 are combined, therefore the illuminated keyboard 3 in this preferred embodiment can save the thickness arranging elastomer thin film, and reduces the internal height of illuminated keyboard 3.
Moreover illuminated keyboard of the present invention more proposes one second preferred embodiment.Refer to Fig. 7, it is the partial structurtes decomposing schematic representation of illuminated keyboard second of the present invention preferred embodiment.Illuminated keyboard 4 comprises base plate 40, main circuit board 41, film switch circuit 42, luminous circuit board 43, multiple button 44 (only showing in figure) and an elastomer thin film 45, and each button 44 comprises button cap 441, scissor Connection Element 442 and an elastomer 443.The structure of the base plate 40 of the illuminated keyboard 4 of this preferred embodiment, main circuit board 41 and multiple button 44 puts in order all identical with the first preferred embodiment with it, therefore no longer adds explanation.The illuminated keyboard 4 of this preferred embodiment is additionally provided with elastomer thin film 45, elastomer thin film 45 has a light shield layer 451, and in order to avoid light leakage phenomena, and elastomer 443 is arranged on light shield layer 451.Film switch circuit 42 is the belows being positioned at elastomer thin film 45, and luminous circuit board 43 is positioned at the below of film switch circuit 42, and main circuit board 41 is then arranged at the side of film switch circuit 42, and is connected to film switch circuit 42.
The thin portion structure of following explanation film switch circuit 42 and luminous circuit board 43, refers to Fig. 8, and it is the film switch circuit of illuminated keyboard second of the present invention preferred embodiment and the STRUCTURE DECOMPOSITION schematic diagram of luminous circuit board.Luminous circuit board 43 is stacked and placed on film switch circuit 42, and is positioned at the below of film switch circuit 42.Luminous circuit board 43 comprises multiple light emitting source 431 and one second transmission line 432, multiple light emitting source 431 is arranged on the first surface 433 of luminous circuit board 43, in order to produce light beam (not being shown in figure), in this preferred embodiment, the first surface 433 of luminous circuit board is upper surface.Second transmission line 432 is arranged on the first surface 433 of luminous circuit board, and is connected to light emitting source 431, and the second transmission line 432 has one second overlapping regions 4321.
In Fig. 8, film switch circuit 42 to comprise on one wiring board 421, separator 422 and once wiring board 423, and upper wiring board 421 has multiple upper contact 4211 and one the 3rd transmission line 4212, and the 3rd transmission line 4212 has one the 3rd overlapping regions 4212A, wherein multiple upper contact 4211 and the 3rd transmission line 4212 are arranged at the lower surface 4213 of wiring board 421.Line plate 423 is positioned at the side of wiring board 421, and it has multiple lower contact 4231,1 first transmission line 4232 corresponding to multiple upper contact 4211 and a bus 4233, wherein multiple lower contact 4231 and the first transmission line 4232 are arranged at the upper surface 4234 of line plate 423.Every contact once 4231 forms press-button contact with each upper contact 4211, and lower contact 4231 produces signal in order to contact with upper contact 4211 when film switch circuit 42 is touched.First transmission line 4232 is connected to multiple lower contact 4231, and the first transmission line 4232 has one first overlapping regions 4232A, wherein the position of the first overlapping regions 4232A corresponds to the 3rd overlapping regions 4212A of upper wiring board 421, and the first overlapping regions 4232A sets up a contact loop (not being shown in figure) of wiring board 421 and line plate 423 in order to contact with the 3rd overlapping regions 4212A.And bus 4233 is connected to main circuit board 41 and the first transmission line 4232.On the other hand, the position of the second overlapping regions 4321 of luminous circuit board 43 corresponds to the first overlapping regions 4232A of line plate 423.Separator 422 has the multiple separator perforates 4221 corresponding to upper contact 4211, in order to be inserted into wherein by upper contact 4211 when film switch circuit 42 is touched.
In this preferred embodiment, film switch circuit 42 is adopt pressing mode and combine both this with the cohesive process of luminous circuit board 43.In the cohesive process both this, the first transmission line 4232 being arranged at the upper surface 4234 of line plate 423 can contact with the second overlapping regions 4321 on luminous circuit board 43 by the first overlapping regions 4232A.When film switch circuit 42 and luminous circuit board 43 are by pressing, the second overlapping regions 4321 on the first overlapping regions 4232A on film switch circuit 42 and luminous circuit board 43 is combined, now, the first transmission line 4232 on film switch circuit 42 and the electric connection between the second transmission line 432 on luminous circuit board 43 are established.Therefore, the electric power needed for luminous circuit board 43 can be transferred to multiple light emitting source 431 by main circuit board 41 (please refer to Fig. 7), bus 4233, first transmission line 4232 (including the first overlapping regions 4232A) and the second transmission line 432 (including the second overlapping regions 4321).
According to above-mentioned known, illuminated keyboard 4 in this preferred embodiment arranges the second overlapping regions 4321 on luminous circuit board 43, and luminous circuit board 43 is stacked and placed on the below of film switch circuit 42, with the second overlapping regions 4321 on the first overlapping regions 4232A on combination film switching circuit 42 and luminous circuit board 43.Illuminated keyboard 4 in this preferred embodiment does not only need extra setting to be connected to the bus of main circuit board 41, more the luminous circuit board 43 being provided with the second overlapping regions 4321 can be combined with existing keyboard and form the illuminated keyboard 4 in this preferred embodiment, therefore do not need other die sinking and save cost.
Moreover illuminated keyboard of the present invention more proposes one the 3rd preferred embodiment.Refer to Fig. 9, it is the partial structurtes decomposing schematic representation of illuminated keyboard of the present invention 3rd preferred embodiment.Illuminated keyboard 5 comprises base plate 50, main circuit board 51, first line plate 52, luminous circuit board 53,1 second wiring board 54, multiple button 55 (only showing in figure) and an elastomer thin film 56.Each button 55 comprises button cap 551, scissor Connection Element 552 and an elastomer 553, and elastomer thin film 56 has a light shield layer 561, and in order to avoid light leakage phenomena, and elastomer 553 is arranged on light shield layer 561.The structure of the base plate 50 of the illuminated keyboard 5 of this preferred embodiment, main circuit board 51, multiple button 55 and elastomer thin film 56 puts in order all identical with the second preferred embodiment with it, therefore no longer adds explanation.
In Fig. 9, the second wiring board 54 is between elastomer thin film 56 and luminous circuit board 53, and luminous circuit board 53 is between the second wiring board 54 and first line plate 52.First line plate 52 is positioned at the side of the second wiring board 54, and first line plate 52 has multiple first contact 521,1 first transmission line 522 and bus 523.First transmission line 522 is connected to multiple first contact 521, and the first transmission line 522 has one first overlapping regions 5221.Second wiring board 54 has multiple second contact 541 and one the 3rd transmission lines 542 corresponding to multiple first contact 521, and the 3rd transmission line 542 has one the 3rd overlapping regions 5421.Each second contact 541 forms press-button contact with corresponding first contact 521, and the second contact 541 produces signal in order to contact with the first contact 521 when the second wiring board 54 is touched, wherein the position of the first overlapping regions 5221 corresponds to the 3rd overlapping regions 5421 of the second wiring board 54.And bus 523 is connected to main circuit board 51 and its first transmission line 522 of the side being positioned at the second wiring board 54.In this preferred embodiment, first line plate 52 is line plate, and the first contact 521 is lower contact, therefore its first contact 521 and the first transmission line 522 are the upper surfaces 524 being arranged at first line plate 52, second wiring board 54 is then upper wiring board, and the second contact 541 is upper contact, therefore its second contact 541 and the 3rd transmission line 542 are the lower surfaces 543 being arranged at the second wiring board 54.
Luminous circuit board 53 comprises multiple light emitting source 531,1 second transmission lines 532 and multiple separator perforate 533, multiple light emitting source 531 is arranged on the first surface 534 of luminous circuit board 53, in order to produce light beam (not being shown in figure), in this preferred embodiment, the first surface 534 of luminous circuit board 53 is upper surface.Second transmission line 532 is arranged on the first surface 534 of luminous circuit board, and be connected to light emitting source 531, and the second transmission line 532 has one second overlapping regions 5321, wherein the position of the second overlapping regions 5321 corresponds to the first overlapping regions 5221 of first line plate 52.Multiple separator perforate 533 corresponds to multiple second contact 541, in order to be inserted into wherein by the second contact 541 when the second wiring board 54 is touched.
When first line plate 52, luminous circuit board 53 and the second wiring board 54 in conjunction with time, the first overlapping regions 5221 on first line plate 52 and the second overlapping regions 5321 on luminous circuit board 53 combined, now, the first transmission line 522 on first line plate 52 and the electric connection between the second transmission line 532 on luminous circuit board 53 are established.Therefore, the electric power needed for luminous circuit board 53 can be transferred to multiple light emitting source 531 by main circuit board 51, bus 523, first transmission line 522 (including the first overlapping regions 5221) and the second transmission line 532 (including the second overlapping regions 5321).On the other hand, the first overlapping regions 5221 on first line plate 52 contacts with the 3rd overlapping regions 5421 and sets up a contact loop (not being shown in figure) of the second wiring board 54 and first line plate 52.
Specifically be, in this preferred embodiment, first line plate 52, luminous circuit board 53 and the second wiring board 54 jointly form a film switch circuit, and first line plate 52, luminous circuit board 53 and the second wiring board 54 adopt pressing mode and in conjunction with the first overlapping regions 5221 and the 3rd overlapping regions 5421 and the first overlapping regions 5221 and the second overlapping regions 5321.
According to above-mentioned known, the illuminated keyboard 5 in this preferred embodiment is arranged at by luminous circuit board 53 between first line plate 52 and the second wiring board 54, makes this three jointly form film switch circuit.Therefore, the illuminated keyboard 5 in this preferred embodiment decreases the thickness of originally separator and reduces the internal height of illuminated keyboard 5.
In addition, illuminated keyboard of the present invention more proposes one the 4th preferred embodiment.Refer to Figure 10, it is the partial structurtes decomposing schematic representation of illuminated keyboard of the present invention 4th preferred embodiment.Illuminated keyboard 6 comprises base plate 60, main circuit board 61, first line plate 62, luminous circuit board 63,1 second wiring board 64, multiple button 65 (only showing in figure) and an elastomer thin film 66.Each button 65 comprises button cap 651, scissor Connection Element 652 and an elastomer 653, and elastomer thin film 66 has a light shield layer 661, and in order to avoid light leakage phenomena, and elastomer 653 is arranged on light shield layer 661.Each element and its of the illuminated keyboard 6 of this preferred embodiment put in order identical haply with the illuminated keyboard 5 of the 3rd preferred embodiment, and illuminated keyboard 5 difference of itself and the 3rd preferred embodiment is the structure of luminous circuit board 63 and first line plate 62 and the second wiring board 64 position.
In Figure 10, first line plate 62 is positioned at the side of the second wiring board 64, and first line plate 62 has multiple first contact 621,1 first transmission line 622 and bus 623.First transmission line 622 is connected to multiple first contact 621, and the first transmission line 622 has one first overlapping regions 6221.Second wiring board 64 has multiple second contact 641 and one the 3rd transmission lines 642 corresponding to multiple first contact 621, and the 3rd transmission line 642 has one the 3rd overlapping regions 6421.Luminous circuit board 63 comprises multiple light emitting source 631,1 second transmission lines 632 and multiple separator perforate 633, and the second transmission line 632 has one second overlapping regions 6321, and its position corresponds to the first overlapping regions 6221 of first line plate 62.The structure of multiple light emitting source 631 second transmission line 632 and multiple separator perforate 633 and function are all identical with the illuminated keyboard 5 of the 3rd preferred embodiment and repeat no more, its difference is that the second transmission line 632 is arranged on the first surface 634 of luminous circuit board 63, and its first surface 634 is a upper surface.
In this preferred embodiment, first line plate 62 is between elastomer thin film 66 and luminous circuit board 63, and luminous circuit board 63 is between first line plate 62 and the second wiring board 64.In first line plate 62, its multiple first contact 621 and the first transmission line 622 are arranged at the lower surface 624 of first line plate 62, and in the second wiring board 64, its multiple second contact 641 and the 3rd transmission line 642 are arranged at the upper surface 643 of the second wiring board 64.That is first line plate 62 is upper wiring board, the second wiring board 64 is then line plate.And first line plate 62, luminous circuit board 63 and the second wiring board 64 is identical haply with the illuminated keyboard 5 of the 3rd preferred embodiment and no longer add explanation in conjunction with situation.
According to above-mentioned each preferred embodiment, illuminated keyboard of the present invention mainly utilizes the first overlapping regions on the second overlapping regions on luminous circuit board and film switch circuit or first line plate and in conjunction with the first transmission line on the second transmission line of luminous circuit board and film switch circuit or first line plate, luminous circuit board is made not need additionally arrange bus and main circuit board can be connected to by the first transmission line on film switch circuit or first line plate, to obtain required electric power.Therefore the cost that bus is additionally set can be saved.Moreover, because luminous circuit board must not arrange bus, and its second transmission line does not also need to be connected to bus, therefore, only need in luminous circuit board to design the circuit being connected to the second overlapping regions, make the Circnit Layout of luminous circuit board simple and circuit design can be carried out easily.In addition, illuminated keyboard of the present invention can change the arrangement mode of its inner member according to different demand, so that the structure and fuction of elastomer thin film is integrated on luminous circuit board, or by the structural integrity of separator on luminous circuit board, therefore the thickness of elastomer thin film or separator originally can be reduced, to reduce the internal height of illuminated keyboard.
The foregoing is only preferred embodiment of the present invention, and be not used to limit right of the present invention, under therefore all other does not depart from disclosed spirit, the equivalence that completes changes or modifies, and all should be contained in right of the present invention.
Claims (12)
1. an illuminated keyboard, is characterized in that, comprising:
Main circuit board;
Film switch circuit, be connected to this main circuit board, this film switch circuit comprises being triggered and produces at least one press-button contact, the first transmission line, the 3rd transmission line and the bus of signal, this first transmission line is connected to this press-button contact, and this first transmission line has the first overlapping regions; 3rd transmission line has the 3rd overlapping regions, and the 3rd overlapping regions sets up the contact loop of this at least one press-button contact in order to contact with this first overlapping regions; This bus is connected to this main circuit board and this first transmission line; This film switch circuit also to comprise on one wiring board and once wiring board, and wherein, this first transmission line, this first overlapping regions and this bus to be arranged on this on wiring board and the 3rd transmission line is arranged on this line plate; Or the 3rd transmission line to be arranged on this on wiring board and this first transmission line, this first overlapping regions and this bus are arranged on this line plate;
Luminous circuit board, is stacked and placed on this film switch circuit, and this luminous circuit board comprises at least one light emitting source and the second transmission line, and this at least one light emitting source is arranged on the first surface of this luminous circuit board, in order to produce light beam; This first surface that this second transmission line is arranged at this luminous circuit board is connected to this light emitting source, and this second transmission line has the second overlapping regions; And
At least one button, is positioned at the top of this film switch circuit and corresponds to this press-button contact, in order to trigger this film switch circuit; Wherein this first overlapping regions contacts with this second overlapping regions, makes this luminous circuit board obtain electric power by this bus, this first transmission line and this second transmission line.
2. illuminated keyboard as claimed in claim 1, is characterized in that, this film switch circuit and this luminous circuit board by pressing in conjunction with this first overlapping regions and this second overlapping regions.
3. illuminated keyboard as claimed in claim 1, it is characterized in that, also comprise conducting resinl, this conducting resinl is arranged in this first overlapping regions or this second overlapping regions, and this film switch circuit and this luminous circuit board are by hot pressing, make this conducting resinl hot melt, and this first overlapping regions is combined by this conducting resinl with this second overlapping regions.
4. illuminated keyboard as claimed in claim 1, is characterized in that, also comprise at least one elastomer, and this luminous circuit board also comprises light shield layer, this light shield layer is arranged on second of this luminous circuit board, and in order to avoid light leak, wherein this at least one elastomer is arranged on this light shield layer.
5. illuminated keyboard as claimed in claim 1, it is characterized in that, also comprise base plate, this film switch circuit and this button are arranged at this base plate, and this at least one button comprises:
At least one button cap, is revealed in a surface of this illuminated keyboard;
At least one scissor Connection Element, between this base plate and this at least one button cap, connects this base plate and this at least one button cap and this at least one button cap is moved up and down relative to this base plate; And
At least one elastomer, is arranged on second of this luminous circuit board, and when this at least one button cap is touched, this at least one elastomer is supported this film switch circuit by compressing, and this film switch circuit is triggered; And when this at least one button cap is no longer touched, this at least one elastomer provides elastic force to this at least one button cap, this at least one button cap is resetted.
6. illuminated keyboard as claimed in claim 1, is characterized in that,
On this, wiring board has at least one upper contact;
This line plate is positioned at the side of wiring board on this, there is at least one lower contact corresponding to this at least one upper contact, this at least one upper contact and this at least one lower contact form at least one press-button contact, and this lower contact contacts with this upper contact when this film switch circuit is touched and produces this signal;
This film switch circuit also comprises separator, this separator is on this between wiring board and this line plate, this separator has at least one separator perforate corresponding to this at least one upper contact, and this at least one separator perforate is stretched into by this at least one upper contact when this film switch circuit is touched.
7. an illuminated keyboard, is characterized in that, comprising:
Main circuit board;
First line plate, has at least one first contact, the first transmission line and bus, and this first transmission line has the first overlapping regions, and this first contact and this first transmission line are connected to this bus, and this bus is connected to this main circuit board;
Second wiring board, be positioned at the side of this first line plate, there is at least one second contact corresponding to this first contact, this second contact this first line plate or this second wiring board touched time and this first contacts, this second wiring board also comprises the 3rd transmission line, 3rd transmission line has the 3rd overlapping regions, and the 3rd overlapping regions sets up the contact loop of this first line plate and this second wiring board in order to contact with this first overlapping regions;
Luminous circuit board, film switch circuit is formed with this first line plate and this second wiring board between this first line plate and this second wiring board, this luminous circuit board comprises at least one separator perforate, at least one light emitting source and the second transmission line, wherein, this at least one separator perforate corresponds to this first contact and is stretched into by this at least one first contact or this at least one second contact when this film switch circuit is touched; This at least one light emitting source is arranged on the first surface of this luminous circuit board, in order to produce a light beam; This first surface that this second transmission line is arranged at this luminous circuit board is connected to this light emitting source, and this second transmission line has the second overlapping regions; And
At least one button, is positioned at the top of this first line plate and corresponds to this at least one first contact, in order to trigger this first line plate; Wherein this first overlapping regions contacts with this second overlapping regions, makes this luminous circuit board obtain electric power by this bus, this first transmission line and this second transmission line.
8. illuminated keyboard as claimed in claim 7, is characterized in that, this first line plate and this luminous circuit board by pressing mode in conjunction with this first overlapping regions and this second overlapping regions.
9. illuminated keyboard as claimed in claim 8, it is characterized in that, also comprise conducting resinl, this conducting resinl is arranged in this first overlapping regions or this second overlapping regions, and this first line plate and this luminous circuit board are by hot pressing, make this conducting resinl hot melt, and this first overlapping regions is combined by this conducting resinl with this second overlapping regions.
10. illuminated keyboard as claimed in claim 7, it is characterized in that, this first line plate is wiring board on, and this second wiring board is wiring board.
11. illuminated keyboards as claimed in claim 7, is characterized in that, this first line plate is wiring board, and this second wiring board is wiring board on.
12. illuminated keyboards as claimed in claim 7, is characterized in that, also comprise base plate, and this first line plate, this second wiring board and this button are arranged on this base plate, and this at least one button comprises:
At least one button cap, is revealed in a surface of this illuminated keyboard;
At least one scissor Connection Element, between this base plate and this at least one button cap, connects this base plate and this at least one button cap and this at least one button cap is moved up and down relative to this base plate; And
At least one elastomer, be arranged on an elastomer thin film of this illuminated keyboard, when this at least one button cap is touched, this at least one elastomer is supported this first line plate or this second wiring board by compressing, and this first line plate or this second wiring board are triggered; And when this at least one button cap is no longer touched, this at least one elastomer provides an elastic force to this at least one button cap, this at least one button cap is resetted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110088348.7A CN102737893B (en) | 2011-04-08 | 2011-04-08 | Luminescent keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110088348.7A CN102737893B (en) | 2011-04-08 | 2011-04-08 | Luminescent keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102737893A CN102737893A (en) | 2012-10-17 |
| CN102737893B true CN102737893B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110088348.7A Expired - Fee Related CN102737893B (en) | 2011-04-08 | 2011-04-08 | Luminescent keyboard |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI578352B (en) * | 2015-08-25 | 2017-04-11 | 達方電子股份有限公司 | Keyboard |
| CN106229193B (en) * | 2016-08-17 | 2018-04-17 | 苏州达方电子有限公司 | Illuminated keyboard and Keysheet module |
| CN108633176B (en) * | 2017-03-24 | 2021-04-09 | 致伸科技股份有限公司 | Thin film circuit structure with expansion function |
| CN110660604B (en) * | 2018-06-28 | 2022-10-25 | 群光电子(苏州)有限公司 | Anti-ghost key membrane switch device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6057517A (en) * | 1999-02-23 | 2000-05-02 | Texas Industrial Peripherals | Elastomeric keyboard incorporating a novel interconnect and back-lighting architecture |
| US6917000B2 (en) * | 2003-01-17 | 2005-07-12 | Lite-On Technology Corporation | Signal input device |
| CN101490776A (en) * | 2006-06-14 | 2009-07-22 | 奥尔约恩有限责任公司 | Electroluminescent lamp membrane switch |
| US7608792B1 (en) * | 2008-11-17 | 2009-10-27 | Sunrex Technology Corp. | Membrane keyboard/keypad with arrangement for uniformly lighting keys from background |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4491033B2 (en) * | 2008-11-27 | 2010-06-30 | 株式会社東芝 | Keyboard and electronics |
| US7952043B2 (en) * | 2008-12-11 | 2011-05-31 | Changshu Sunrex Technology Co., Ltd. | Keyboard with backlighting functionality |
-
2011
- 2011-04-08 CN CN201110088348.7A patent/CN102737893B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6057517A (en) * | 1999-02-23 | 2000-05-02 | Texas Industrial Peripherals | Elastomeric keyboard incorporating a novel interconnect and back-lighting architecture |
| US6917000B2 (en) * | 2003-01-17 | 2005-07-12 | Lite-On Technology Corporation | Signal input device |
| CN101490776A (en) * | 2006-06-14 | 2009-07-22 | 奥尔约恩有限责任公司 | Electroluminescent lamp membrane switch |
| US7608792B1 (en) * | 2008-11-17 | 2009-10-27 | Sunrex Technology Corp. | Membrane keyboard/keypad with arrangement for uniformly lighting keys from background |
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| Publication number | Publication date |
|---|---|
| CN102737893A (en) | 2012-10-17 |
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