CN102456492A - Luminescent keyboard - Google Patents

Abstract

The invention relates to a luminescent keyboard. The luminescent keyboard comprises: a support plate; a light-penetrating mullion; keys; a light source, which is between the keys and the light-penetrating mullion; and a thin film switch circuit. The light-penetrating mullion is arranged on the support plate, so that the structure of the luminescent keyboard can be more stable. A light beam generated by the light source enters the light-penetrating mullion and is reflected by the support plate and then enters the light-penetrating mullion, the thin film switch circuit and the keys, so that the keys are in a luminescent state. According to the invention, the luminescent keyboard has an advantage of uniform illumination.

Description

Illuminated keyboard

Technical field

The present invention relates to keyboard, relate in particular to a kind of illuminated keyboard with lighting function.

Background technology

Generally speaking, the computer peripheral equipment input unit comprises mouse, keyboard and trace ball etc., and wherein keyboard can directly be keyed in literal and symbol to computer, therefore quite receives the attention of user and input unit manufacturer.Next the structure and the function of the existing keyboard of explanation see also Fig. 1, and it is the surface structure sketch map of existing keyboard.Have a plurality of buttons on the surface of existing keyboard 1; Those buttons are classified asgeneral key 10,numerical key 11 and function key 12 etc., and those buttons supply users to press and produce corresponding signal with finger and give computer, make computer carry out touched keypress function; For examplegeneral key 10 is in order to symbols such as inputting English letters;Numerical key 11 is in order to input digit, and function key 12 is then in order to provide various functions, for example F1～F12 etc.

Evolution along with science and technology; Keyboard manufacturer is devoted to research and develop various keyboards with specific function to satisfy the various demands of different user; With the illuminated keyboard with lighting function is the example explanation, sees also Fig. 2, and it is the partial structurtes generalized section of existing illuminated keyboard.Illuminatedkeyboard 2 comprises abutton 20, ametal base plate 21, afilm switch circuit 22, alight source 23 and a LGP 24.Button 20 comprises abutton cap 201, one ascissor Connection Element 202 and an elastomer 203.In theilluminated keyboard 2, basipetal the putting in order of above-mentioned each element isbutton cap 201, scissor Connection Element 202,elastomer 203,film switch circuit 22,metal base plate 21 and LGP 24, andlight source 23 then is positioned at a side of LGP 24.Light source 23 is through a flexible circuit board (Flexible Printed Circuit; FPC) 25 and be connected in the circuit board (not being shown among the figure) ofilluminated keyboard 2; And obtain electric power throughflexible circuit board 25, andlight source 23 is in order to produce a light beam B, and whereinlight source 23 is a light-emitting diode (Light Emitter Diode; LED), andelastomer 203 be a printing opacity rubber.

Among Fig. 2, LGP 24 makes light beam B be able to be flooded to whole keyboard in order to lead beam B, and can change the direct of travel of light beam B and light beam B is up advanced.Film switch circuit 22 is arranged on themetal base plate 21, andmetal base plate 21 has a firstfixed structure 211, one secondfixed structure 212 and twoperforates 213, and perforate 213 is in order to be passed by light beam B and to make light beam B be able to get into film switch circuit 22.Button cap 201 comprises one first button cap fixedstructure 2011, one second button cap fixedstructure 2012 and atransmission region 2013, and scissor Connection Element 202 comprises onefirst framework 2021 and one second framework 2022.Onefirst end 2021A offirst framework 2021 is connected in secondfixed structure 212; And onesecond end 2021B offirst framework 2021 is connected in the first button cap fixedstructure 2011; Onefirst end 2022A ofsecond framework 2022 is connected in firstfixed structure 211, and onesecond end 2022B ofsecond framework 2022 is connected in the second button cap fixedstructure 2012.

Please continue to consult Fig. 2; Whenbutton 2 touched and when moving down with respect tometal base plate 21;First framework 2021 of scissor Connection Element 202 andsecond framework 2022 change to closed state by folding condition; And thebutton cap 201 that moves downcompresses elastomer 203, makeselastomer 203 replacefilm switch circuit 22 and produces the push button signalling corresponding to button 20.And whenbutton 20 is no longer touched; Elastomer 203 provides an elastic force tobutton cap 201; Buttoncap 201 is up moved formetal base plate 21, andfirst framework 2021 andsecond framework 2022 are changed to folding condition andbutton cap 201 are resetted by closed state.Whenlight source 23 produced light beam B, light beam B entered to LGP 24, and LGP 24 changes the direction of light beam B, and segment beam B is stopped bymetal base plate 21, and remainder light beam B then passes perforate 213 and gets into film switch circuit 22.Next, light beam B passes thetransmission region 2013 onfilm switch circuit 22,elastomer 203 and thebutton cap 201 in regular turn, makesbutton 20 luminous.Yet, during existing illuminated keyboard work, be positioned at most of light beam B that thelight source 23 ofmetal base plate 21 belows produced and can be stopped that therefore existing illuminated keyboard can produce the even phenomenon of uneven illumination bymetal base plate 21.

Summary of the invention

Technical problem to be solved by this invention is to the above-mentioned deficiency of prior art existence, and a kind of illuminated keyboard that makes the illumination homogenizing to be provided.

The technical solution adopted for the present invention to solve the technical problems provides a kind of illuminated keyboard, and it comprises supporting bracket; Be arranged at the printing opacity center on this supporting bracket; Be connected in this printing opacity center and have at least one button of transmission region; And between this button and this supporting bracket and in order to produce the light source of light beam; Wherein this light beam passes through this transmission region of this supporting bracket, this printing opacity center and this button in regular turn.

Said illuminated keyboard also comprises film switch circuit, and this film switch circuit is arranged between this printing opacity center and this button, and this film switch circuit comprises wiring board, separator and line plate, and wherein, wiring board has at least one upper contact on this; This separator is positioned at the below of wiring board on this, and this separator has the separator perforate corresponding to this upper contact; This line plate is positioned at the below of this separator, and has the following contact corresponding to this upper contact.

Said illuminated keyboard also comprises light guiding film; This light guiding film is between this supporting bracket and this printing opacity center; In order to guide this light beam, wherein this light beam passes through this transmission region of this supporting bracket, light guiding film, this printing opacity center, this film switch circuit and this button in regular turn.

This button comprises button cap, scissor Connection Element and elastomer, and wherein, this button cap is revealed in a surface of this illuminated keyboard, and this transmission region is positioned on this button cap; This scissor Connection Element is between this printing opacity center 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 printing opacity center; This elastomer is between this film switch circuit and this button cap, and when this button cap was touched, this elastomer was compressed and replaces this film switch circuit to produce push button signalling; And when this button cap was no longer touched, this elastomer provided elastic force to this button cap, and this button cap is resetted.

This button cap has the first button cap fixed structure and the second button cap fixed structure; And this printing opacity center has the first center fixed structure and the second center fixed structure, and this first center fixed structure, this second center fixed structure and this printing opacity center are formed in one; This scissor Connection Element comprises first framework and second framework; First end of this first framework is connected in this second center fixed structure; Second end of this first framework is connected in this first button cap fixed structure; And first end of this second framework is connected in this second button cap fixed structure, and second end of this second framework is connected in this first center fixed structure.

This light source be light-emitting diode (Light Emitter Diode, LED).

This supporting bracket is to process with metal.

This printing opacity center is to process with transparent material.

Printing opacity center in the illuminated keyboard of the present invention has and has the metal base plate identical functions now---and be connected in scissor Connection Element and set up combining of button and printing opacity center (or existing metal base plate); And the printing opacity center is made with transparent material; Make light source be able to be arranged at the printing opacity center above or below; And make light beam be able to down pass or up pass the printing opacity center and do not covered by existing metal base plate; Therefore the light beam that passes button cap can produce higher brightness, and can not produce the even phenomenon of uneven illumination because of segment beam is covered by existing metal base plate; In addition, for strengthening the steadiness of illuminated keyboard, illuminated keyboard of the present invention is provided with a supporting bracket in the below of printing opacity center, is difficult for bending and damage with the structure of strengthening illuminated keyboard.

Description of drawings

Fig. 1 is the surface structure sketch map of existing keyboard.

Fig. 2 is the partial structurtes generalized section of existing illuminated keyboard.

Fig. 3 is the structural profile sketch map of illuminated keyboard first preferred embodiment of the present invention.

Fig. 4 is the partial structurtes exploded view of illuminated keyboard first preferred embodiment of the present invention.

Fig. 5 is the partial structurtes generalized section of illuminated keyboard first preferred embodiment of the present invention.

Fig. 6 is the partial structurtes exploded view of illuminated keyboard second preferred embodiment of the present invention.

Fig. 7 is the partial structurtes generalized section of illuminated keyboard second preferred embodiment of the present invention.

Embodiment

In view of the defective of prior art, the present invention provides a kind of illuminated keyboard.See also Fig. 3, it is for the structural profile sketch map of illuminated keyboard first preferred embodiment of the present invention.Illuminatedkeyboard 3 comprises a supportingbracket 30, aprinting opacity center 31, a plurality ofbutton 32, a row light source 33 (only showing among the figure) and a film switch circuit 34.A plurality ofbuttons 32 are arranged on thefilm switch circuit 34, andfilm switch circuit 34 is arranged on theprinting opacity center 31, andprinting opacity center 31 then is arranged on the supporting bracket 30.In this preferred embodiment;Light source 33 be light-emitting diode (Light Emitter Diode, LED), andlight source 33 is not one to one corresponding tobutton 32; With regard to wholeilluminated keyboard 3, the light beam that arow light source 33 is produced promptly is enough to make allbuttons 32 to have illumination effect.

Next the concrete structure ofilluminated keyboard 3 is described, is that example is explained with the one key among Fig. 3 32, sees also Fig. 4, and it is the partial structurtes exploded view of illuminated keyboard first preferred embodiment of the present invention.Fig. 4 has shown supportingbracket 30,printing opacity center 31,button 32,light source 33 and film switch circuit 34.Printing opacity center 31 has one first centerfixed structure 311 and one second centerfixed structure 312; And the first centerfixed structure 311, the second centerfixed structure 312 are formed in one withprinting opacity center 31; Whereinprinting opacity center 31 is to process with transparent material, soprinting opacity center 31 has the effect of being passed bylight.Button 32 comprises abutton cap 321, one ascissor Connection Element 322 and anelastomer 323;Button cap 321 has atransmission region 3211; Be positioned at the upper surface ofbutton cap 321; And scissor Connection Element 322 comprises onefirst framework 3221 and onesecond framework 3222, and in this preferred embodiment,elastomer 323 is made with a printing opacity rubber.

Light source 33 is betweenprinting opacity center 31 andbutton 32; Andlight source 33 is in order to producing a light beam B ' (please with reference to Fig. 5), and supportingbracket 30 is in order to folded light beam B ', in this preferred embodiment; Supportingbracket 30 is made with a metal, andmetal supporting bracket 30 has preferable light reflective.Film switch circuit 34 is betweenprinting opacity center 31 andbutton 32, andfilm switch circuit 34 compriseswiring board 341 on, aseparator 342 andwiring board 343 once.Last wiring board 341 has at least oneupper contact 3411, andseparator 342 has a separator perforate 3421.Line plate 343 has the contact once 3431 corresponding to upper contact 3411.Whenfilm switch circuit 34 was touched,upper contact 3411 was inserted into separator perforate 3421 and contacts to set up electrically conducting of 3431 ofupper contact 3411 and following contacts with followingcontact 3431.

See also Fig. 5 about above-mentioned each combination of elements situation, it is the partial structurtes generalized section of illuminated keyboard first preferred embodiment of the present invention.In theilluminated keyboard 3;Printing opacity center 31 is arranged on the supportingbracket 30;Light source 33 is arranged betweenprinting opacity center 31 and thefilm switch circuit 34; Andfilm switch circuit 34 is positioned at the top oflight source 33, wherein go upwiring board 341 and be stacked and placed on theseparator 342, andseparator 342 is stacked and placed on the line plate 343.Elastomer 323 is arranged on thefilm switch circuit 34, and 321 of button caps are arranged on the elastomer 323.Scissor Connection Element 322 is betweenprinting opacity center 31 andbutton cap 321; In order to connectprinting opacity center 31 andbutton cap 321 andbutton cap 321 moved up and down with respect toprinting opacity center 31; Thefirst end 3221A offirst framework 3221 of whereinscissor Connection Element 322 is connected in the second centerfixed structure 312; Thesecond end 3221B offirst framework 3221 is connected in the first button capfixed structure 3212; And being connected in thesecond end 3222B of the second button cap fixed structure, 3213, thesecond frameworks 3222, thefirst end 3222A ofsecond framework 3222 ofscissor Connection Element 322 is connected in the first centerfixed structure 311.

Whenbutton 32 touched and when moving down with respect toprinting opacity center 31;First framework 3221 of scissor Connection Element 322 andsecond framework 3222 change to closed state by folding condition; And thebutton cap 321 that moves downcompresses elastomer 323, makeselastomer 323 replacefilm switch circuit 34 and produces the push button signalling corresponding to button 32.And whenbutton 32 is no longer touched; Elastomer 323 provides an elastic force tobutton cap 321; Buttoncap 321 is up moved with respect toprinting opacity center 31, andfirst framework 3221 andsecond framework 3222 are changed to folding condition andbutton cap 321 are resetted by closed state.Whenlight source 33 produces light beam B '; Segment beam B ' down throws and gets intoprinting opacity center 31; And inprinting opacity center 31, advance; Next light beam B ' passes 31 also supportedplate 30 reflections of printing opacity center and changes its direct of travel, thereby passesprinting opacity center 31 once more and entering film switch circuit 34.The light beam B ' that penetratesfilm switch circuit 34 also passeselastomer 323 and is projected tobutton cap 321, and penetrates thetransmission region 3211 that is positioned on thebutton cap 321, and illuminatedkeyboard 3 is able to luminous whereby.Know according to above-mentioned, be positioned at path that light beam B ' that thelight source 33 of 34 ofprinting opacity center 31 and film switch circuits produces advances in regular turn for down getting intoprinting opacity center 31,30 reflections of supported plate, up getting into thetransmission region 3211 ofprinting opacity center 31,film switch circuit 34 andbutton 32.

What need to specify is, thetransmission region 3211 on thebutton cap 321 for example be the alphabetical zone that belongs to of A on the A key for the surface ofbutton cap 321 has the zone of letter or symbol.Make thepenetrable transmission region 3211 of crossing of light beam B ' through said structure, letter on thebutton 32 or symbol then are able to luminous.

Moreover the present invention also provides second preferred embodiment of an illuminated keyboard, sees also Fig. 6, and it is the partial structurtes exploded view of illuminated keyboard second preferred embodiment of the present invention.Illuminatedkeyboard 4 comprises a supportingbracket 40, aprinting opacity center 41, at least one button 42 (explaining with single button), alight source 43, afilm switch circuit 44 and a light guiding film 45.Printing opacity center 41 has one first centerfixed structure 411 and one second centerfixed structure 412; And the first centerfixed structure 411, the second center fixedstructure 412 are formed in one withprinting opacity center 41; Whereinprinting opacity center 41 is to process with transparent material, soprinting opacity center 41 block light and have the effect of being passed by light not.Button 42 comprises abutton cap 421, one ascissor Connection Element 422 and anelastomer 423;Button cap 421 has atransmission region 4211; Be positioned at a upper surface ofbutton cap 421, and scissor Connection Element 422 comprises onefirst framework 4221 and onesecond framework 4222.

As forlight source 43, be in order to produce a light beam B ' (please with reference to Fig. 7), in this preferred embodiment,light source 43 is a light-emitting diode, supportingbracket 40 is then in order to folded light beam B '.Film switch circuit 44 compriseswiring board 441 on, aseparator 442 andwiring board 443 once.Last wiring board 441 has at least oneupper contact 4411, andseparator 442 has a separator perforate 4421.Line plate 443 has the contact once 4431 corresponding to upper contact 4411.Light guiding film 45 makes light beam B ' be able to diffuse to and is positioned at theprinting opacity center 41 ofother button 42 belows or the direct of travel of change light beam B ' in order to lead beam B '.

See also Fig. 7 about above-mentioned each combination of elements situation, it is the partial structurtes generalized section of illuminated keyboard second preferred embodiment of the present invention.In theilluminated keyboard 4,printing opacity center 41 is arranged on the supportingbracket 40, andfilm switch circuit 44 is arranged on the printing opacity center 41.Light source 43 is arranged betweenprinting opacity center 41 and thefilm switch circuit 44, andlight guiding film 45 is between supportingbracket 40 and printing opacity center 41.In thefilm switch circuit 44,last wiring board 441 is stacked and placed on theseparator 442, andseparator 442 is stacked and placed on the line plate 443.421 of button caps are arranged on theelastomer 423, andelastomer 423 is arranged on thefilm switch circuit 44, and whenelastomer 423 was compressed,elastomer 423 was able to replace thefilm switch circuit 44 of its below whenbutton cap 421 is touched.Scissor Connection Element 422 is betweenprinting opacity center 41 andbutton cap 421; In order to connectingprinting opacity center 41 andbutton cap 421 andbutton cap 421 is moved up and down with respect toprinting opacity center 41, identical and repeat no more as for the annexation of 421 offirst framework 4221 ofscissor Connection Element 422 andsecond framework 4222 andprinting opacity center 41 and button caps and first preferred embodiment.

Whenbutton 42 touched and when moving down with respect toprinting opacity center 41;First framework 4221 ofscissor Connection Element 422 andsecond framework 4222 change to closed state by folding condition; And thebutton cap 421 that moves downcompresses elastomer 423; Makeelastomer 423 replacefilm switch circuit 44, therefore upward the followingcontact 4431 of theupper contact 4411 ofwiring board 441 andline plate 443 electrically conducts and produces the push button signalling corresponding to button 42.And whenbutton 42 is no longer touched; Elastomer 423 provides an elastic force tobutton cap 421;Button cap 421 is up moved with respect toprinting opacity center 41, andfirst framework 4221 andsecond framework 4222 are changed to folding condition andbutton cap 421 are resetted by closed state.

Whenlight source 43 produces light beam B '; Segment beam B ' down throws and gets intoprinting opacity center 41; And inprinting opacity center 41, advance; Next light beam B ' passesprinting opacity center 41 and in light guidingfilm 45, advances, and passes supportedplate 40 reflections of the light beam B ' of light guidingfilm 45 and changes its direct of travel, makes light beam B ' passlight guiding film 45 andprinting opacity center 41 and gets into film switch circuit 44.Light beam B ' passesfilm switch circuit 44 andelastomer 423 and is projected tobutton cap 421, and penetrates thetransmission region 4211 that is positioned on thebutton cap 421, and illuminatedkeyboard 4 is able to luminous whereby.Do not passlight guiding film 45 and not supportedplate 40 beam reflected B ' and then be able to diffuse to theprinting opacity center 41 that is positioned atother button 42 belows bylight guiding film 45 guiding.Know according to above-mentioned; Under ignoring, be positioned at path that light beam B ' that thelight source 43 of 44 ofprinting opacity center 41 and film switch circuits produces advances in regular turn for down getting intoprinting opacity center 41, down getting into light guidingfilm 45, supportedplate 40 and reflect, up get into light guidingfilm 45, up get into thetransmission region 4211 ofprinting opacity center 41,film switch circuit 44 andbutton 42 by the situation of the light beam B ' of light guidingfilm 45 guiding.

In this preferred embodiment, the extralight guiding film 45 that betweenprinting opacity center 41 and supportingbracket 40, is provided with, the light beam B ' thatlight source 43 is produced is able to be flooded to theprinting opacity center 41 that is positioned atother button 42 belows, to make the illumination homogenizing further.

Can know according to above-mentioned each preferred embodiment; Printing opacity center in the illuminated keyboard of the present invention has and has the metal base plate identical functions now---and be connected in scissor Connection Element and set up combining of button and printing opacity center (or existing metal base plate); And the printing opacity center is made with transparent material; Make light source be able to be arranged at the printing opacity center above or below; And make light beam be able to down pass or up pass the printing opacity center and do not covered by existing metal base plate, the light beam that therefore passes button cap can produce higher brightness, and can not produce the even phenomenon of uneven illumination because of segment beam is covered by existing metal base plate.In addition, for strengthening the steadiness of illuminated keyboard, illuminated keyboard of the present invention is provided with a supporting bracket in the below of printing opacity center, is difficult for bending and damage with the structure of strengthening illuminated keyboard.

The above is merely preferred embodiment of the present invention, is not in order to limiting claim scope of the present invention, and therefore all other do not break away from the equivalence of being accomplished under the disclosed spirit and change or modify, and all should be contained in the scope of the present invention.

Claims (8)

1. an illuminated keyboard is characterized in that, comprising:

Supporting bracket;

The printing opacity center is arranged on this supporting bracket;

At least one button be connected in this printing opacity center, and this button has transmission region; And

Light source is between this button and this supporting bracket, in order to produce light beam; Wherein this light beam passes through this transmission region of this supporting bracket, this printing opacity center and this button in regular turn.

2. illuminated keyboard as claimed in claim 1 is characterized in that: also comprise film switch circuit, this film switch circuit is arranged between this printing opacity center and this button, and this film switch circuit comprises:

Last wiring board has at least one upper contact;

Separator be positioned at the below of wiring board on this, and this separator has the separator perforate corresponding to this upper contact; And

The line plate is positioned at the below of this separator, and has the following contact corresponding to this upper contact.

3. illuminated keyboard as claimed in claim 2; It is characterized in that: also comprise light guiding film; This light guiding film is between this supporting bracket and this printing opacity center; In order to guide this light beam, wherein this light beam passes through this transmission region of this supporting bracket, light guiding film, this printing opacity center, this film switch circuit and this button in regular turn.

4. illuminated keyboard as claimed in claim 2 is characterized in that, this button comprises:

Button cap be revealed in a surface of this illuminated keyboard, and this transmission region is positioned on this button cap;

Scissor Connection Element is between this printing opacity center 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 printing opacity center; And

Elastomer, between this film switch circuit and this button cap, when this button cap was touched, this elastomer was compressed and replaces this film switch circuit to produce the push button signalling corresponding to this button; And when this button cap was no longer touched, this elastomer provided elastic force to this button cap, and this button cap is resetted.

5. illuminated keyboard as claimed in claim 4; It is characterized in that: this button cap has the first button cap fixed structure and the second button cap fixed structure; And this printing opacity center has the first center fixed structure and the second center fixed structure, and this first center fixed structure, this second center fixed structure and this printing opacity center are formed in one; This scissor Connection Element comprises first framework and second framework; First end of this first framework is connected in this second center fixed structure; Second end of this first framework is connected in this first button cap fixed structure; And first end of this second framework is connected in this second button cap fixed structure, and second end of this second framework is connected in this first center fixed structure.

6. illuminated keyboard as claimed in claim 1 is characterized in that: this light source is a light-emitting diode.

7. illuminated keyboard as claimed in claim 1 is characterized in that: this supporting bracket is to process with metal.

8. illuminated keyboard as claimed in claim 1 is characterized in that: this printing opacity center is to process with transparent material.

Images