CN2884490Y

CN2884490Y - Luminous film switch, and its key-board

Info

Publication number: CN2884490Y
Application number: CN 200520103761
Authority: CN
Inventors: 黄惠屏; 梁致平
Original assignee: JIAHUIKANG IND CO Ltd
Current assignee: Yilai Sci. & Tech. Co., Ltd.
Priority date: 2005-08-12
Filing date: 2005-08-12
Publication date: 2007-03-28
Anticipated expiration: 2015-08-12

Abstract

The utility model discloses a luminescent film switch and its luminescent keyboard. The luminescent film switch comprises an upper circuit film layer, an electrical activation luminous element and a lower circuit film layer. The electrical activation luminous element is arranged between the upper circuit film layer and the lower circuit film layer. The light ray generated as the power is supplied can be reflected from the circuit film layer. In addition, a plurality of openings on the switch is served as the mutual connection after the upper circuit film layer and the lower circuit film layer lines are contacted by the press. The keyboard can utility the luminescent film switch to sensitively measure the press key input action, and the light ray which is emitted from press key surface can be applied for the user to confirm the function or the representative character of each press key.

Description

Light-emitting film switch and its illuminated keyboard

Technical field

The utility model relates to a kind of light-emitting film switch and its illuminated keyboard, and in particular to a kind of thin film switch that can be used to sensing button input action, it can emit beam with the function of display button or represention character element.

Background technology

Under the environment of many keyboard operations, often lack the function that enough light confession users check button institute mark, for example: use notebook computer aboard, or in special places such as gold-tinted chamber and ruddiness chamber, operate equipment with keyboard.

Fig. 1 is the top view of the 6th, 179, No. 432 illuminated keyboards that patent disclosed of the U.S..Described keyboard 10 inlay card on a housing 15 is lived a plurality of buttons 11, and it is restricted to bottom offset only to allow that button 11 has in vertical direction.Each button 11 surface has the function of a mark 12 with the explanation button, for example: the alphabetical enter key of 0～9 digital input key, A～Z and the function key of F1～F12.Be provided with an electroluminescence element 13 below button 11, described electroluminescence element 13 is by the alternating current driven for emitting lights, thus supplied with the DC power supply of 3.3 volts or 5 volts by connecting line 14 need be through conversion exciting light element 13 uses of could powering.

Fig. 2 is the three-dimensional exploded view of the illuminated keyboard of Fig. 1.Described electroluminescence element 13 comprises plurality of openings 131, and the position of each opening 131 is corresponding with the position of a button 12 of top.Another drive circuit 133 is responsible for DC power supply that connecting line 14 is supplied with are converted to the specification of the alternating current of electroluminescence element 13 needs.Have the elastic layer 21 that rubber or silica gel are made below electroluminescence element 13, described elastic layer 21 has a plurality of and the corresponding bossy body 211 in position button 12.Described bossy body 211 is rich in flexible, and the button of depressing 12 is kept in the center rapidly.When bossy body 211 is subjected to the pressure of button 12 and when being out of shape, the thin film switch 22 of being located at elastic layer 21 belows can be pushed and be switched on by bossy body 211, represent the input signal of described button 12 to pass main frame back simultaneously by connecting line 14.

Because electroluminescence element 13 is located at button 12 belows, therefore the structure that needs redesign button 12 is to hold the thickness of electroluminescence element 13, and to keep displacement after normally depressing, so design is gone up and be inconvenient, also can increase the integral thickness of keyboard.

The utility model content

Main purpose of the present utility model is to provide a kind of light-emitting film switch, but the donating bond dish comes the input action of sensing button, and can produce light and transmitted to illuminate its surperficial mark by button.

Another purpose of the present utility model is to provide a kind of and the compatible light-emitting film switch of script keyboard structure, need not to change the press-key structure that has keyboard now and just can reach luminous purpose.

For achieving the above object, the utility model discloses a kind of light-emitting film switch and its illuminated keyboard, and described light-emitting film switch comprises one and goes up circuit rete, an electroluminescence element and a following circuit rete.Described electroluminescence element is located at described going up between circuit rete and the following circuit rete, except meeting generation light after powering is transmitted by the described circuit rete of going up, and has circuit mutual conduction after pressing that plurality of openings can supply described upward circuit rete and following circuit rete.Keyboard can use described light-emitting film switch to come the input action of sensing button, and can emit beam and transmitted by keytop, can confirm the function or the represention character element of each button for the user.

Description of drawings

Fig. 1 is the top view of the 6th, 179, No. 432 illuminated keyboards that patent disclosed of the U.S.;

Fig. 2 is the three-dimensional exploded view of the illuminated keyboard of Fig. 1;

Fig. 3 is the exploded view of light-emitting film switch of the present utility model and illuminated keyboard;

Fig. 4 is applied to the generalized section of the illuminated keyboard of desktop computer for the utility model; With

Fig. 5 is applied to the generalized section of the illuminated keyboard of notebook computer for the utility model.

Embodiment

Fig. 3 is the exploded view of light-emitting film switch of the present utility model and illuminated keyboard.A plurality of buttons 32 are separately fixed on the plurality of fixed seat 341 of upper shell 34, and it is one restricted to bottom offset that each button 32 only can have on the holder 341 of correspondence.In addition, button 32 surfaces have mark 321, and therefore its function or represention character element are described.Having elastic layer 33 that rubber or silica gel makes in addition places the below of holder 341, described elastic layer 33 to have a plurality of and the corresponding bossy body 331 in position button 32.Described bossy body 331 is rich in flexible, can make the button of depressing 32 return position originally rapidly.

When bossy body 331 is subjected to the pressure of button 32 and when being out of shape, the light-emitting film switch 31 of being located at bossy body 331 belows can be pushed by bossy body 321 and be in the state of conducting, represents the input signal of described button 32 to pass main frame back by connecting line (not shown) simultaneously.Described light-emitting film switch 31 is made up of last circuit rete 311, electroluminescence element 312 and following circuit rete 313, wherein said electroluminescence element 312 is not only as interlayer between last circuit rete 311 and the following circuit rete 313, also can produce to dazzle bright cold light and transmitted by the described circuit rete 311 of going up.Can be equipped with a metallic plate 35 below light-emitting film switch 31, described metallic plate 35 and upper shell 34 can be in the mode of sandwich with electroluminescence element 312 clampings therein.

Fig. 4 is applied to the generalized section of the illuminated keyboard of desktop computer for the utility model.Wherein the inner edge of button 32 and holder 341 colludes mutually and blocks, so button 32 is difficult for separating from holder 341.In addition, button 32 bottoms directly are resisted against bossy body 331 upper surfaces.When button 32 is subjected to that finger presses and when moving down, bossy body 331 can be extruded and stay, will goes up circuit rete 311 and following circuit rete 313 up to the portion that presses 3311 of its inboard and press together and stop.Because electroluminescence element 312 has corresponding opening 3121 below button 32, therefore go up circuit rete 311 and be subjected to from the surface that can be fitted in down circuit rete 313 behind the pressure of top by opening 3121.

The described circuit rete 311 of going up all is to form

plural wires

3111 and 3131 respectively on a thin isolation base material with following circuit rete 313, so when last circuit rete 311 pressed together with following circuit rete 313,

lead

3111 and 3131 just contacted with each other a path of formation and produces corresponding input signal.Generally use the elargol that contains silver powder to form the pattern of lead, and around last circuit rete 311 and following circuit rete 313, seal to prevent the oxidation of silver at insulating base material.

Know the mark 321 that presents button 32 for making electroluminescence element 312 produce light, can select transparent or semitransparent silica gel as elastic layer 33, and make button 32 and upper shell 34 respectively with transparent plastics or acryl material.

Fig. 5 is applied to the generalized section of the illuminated keyboard of notebook computer for the utility model.Wherein button 521 is fixed on the linkage 522 (or being called the butterfly button), has an elastomer 53 to be seated in formed space in the linkage 552 in addition, and a light-emitting film switch 51 is set below elastomer 53.When button 521 is subjected to that finger presses and when moving down, elastomer 53 can be extruded and stay, will goes up circuit rete 511 up to the portion that presses 531 of its inboard and press together with following circuit rete 513 and stop.Because electroluminescence element 512 has corresponding opening 5121 below button 521, therefore going up circuit rete 511 and be subjected to from the surface that could be fitted in down circuit rete 513 behind the pressure of top by opening 5121, also is that the lead 5111 and 5131 on it can contact with each other a path of formation and produce corresponding input signal.

Be similarly and make electroluminescence element 512 generation light and the clear mark that presents button 521, can select transparent or semitransparent silica gel as elastomer 53, and make button 521 and linkage 552 respectively with transparent plastic or acryl material.

Technology contents of the present utility model and technical characterstic are disclosed hereinbefore, yet one of ordinary skill in the art still can be based on teaching of the present utility model and announcements and made all replacement and corrections that does not deviate from the utility model spirit.Therefore, protection range of the present utility model should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present utility model and corrections, and is contained by aforementioned claim.

Claims

1. light-emitting film switch is characterized in that comprising:

Go up the circuit rete for one, it is the base material that a surface has a plurality of leads;

A following circuit rete, it is the base material that a surface has a plurality of leads; With an electroluminescence element, it is located at the described circuit rete and described down between the circuit rete of going up, can produce light is transmitted by the described circuit rete of going up, and described electroluminescence element has plurality of openings, can touch mutually for described lead and the described lead of circuit rete down of going up the circuit rete.

2. light-emitting film switch according to claim 1 is characterized in that described base material is an insulation thin material.

3. light-emitting film switch according to claim 1 is characterized in that described lead is for to form pattern with elargol on described base material.

4. illuminated keyboard is characterized in that comprising:

A kind of light-emitting film switch as claimed in claim 1; With

A plurality of buttons, it is located at the top of the plurality of openings of described electroluminescence element respectively;

Move down by described button, can oppress described lead and the described lead of circuit rete down of going up the circuit rete and touch mutually.

5. illuminated keyboard according to claim 4, it is characterized in that comprising in addition an elastic layer of being located between described button and the described light-emitting film switch, described elastic layer has a plurality of bossy bodies, can make the distortion of described bossy body and touch the described circuit rete of going up when button moves down.

6. illuminated keyboard according to claim 5, it is characterized in that comprising in addition a linkage that is used to connect described button and described light-emitting film switch, described linkage limits described button and is maintained in the particular displacement on perpendicular to described light-emitting film switch direction.

7. illuminated keyboard according to claim 5 is characterized in that comprising in addition a upper shell with plurality of fixed seat, and described holder limits described button and is maintained in the particular displacement on perpendicular to described light-emitting film switch direction.

8. illuminated keyboard according to claim 4 is characterized in that comprising in addition a metallic plate of the lower surface that places described light-emitting film switch.