CN105448568B - Key device - Google Patents
Key device Download PDFInfo
- Publication number
- CN105448568B CN105448568B CN201511008399.9A CN201511008399A CN105448568B CN 105448568 B CN105448568 B CN 105448568B CN 201511008399 A CN201511008399 A CN 201511008399A CN 105448568 B CN105448568 B CN 105448568B
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- Prior art keywords
- area
- light
- emitting component
- cover layer
- film
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
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- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The present invention includes bottom plate on a kind of key device, keycap, lift supporting mechanism, light-emitting component and circuit board, the keycap is arranged above the bottom plate, the lifting supporting mechanism is arranged between the bottom plate and the keycap, the circuit board includes the first film layer, spacer structure and the second film layer, first film layer is arranged on the bottom plate, the spacer structure is arranged in first film layer, second film layer is arranged on the spacer structure, first film layer, one of the spacer structure and second film layer with it is wherein another between formed with accommodation space, the light-emitting component is arranged in the accommodation space, to be emitted beam towards the keycap, thereby effectively prevent static discharge from entering the circuit board via the light-emitting component and causing the circuit board damage.
Description
Technical field
The present invention is on a kind of key device, espespecially a kind of luminous key device with antistatic protection function.
Background technology
Recently, keyboard has turned into the common input tool of people, to input word, numeral, symbol etc..To ask prompting to imitate
Fruit, setting light-emitting component (such as light-emittingdiode) at button often is corresponded in the film circuit board of keyboard, so that button has hair
Light function.However, when outside produces electrostatic or during using static gun progress electrostatic test, outside electrostatic or by static gun
Caused electrostatic can enter film circuit board via light-emitting component, and then damage film circuit board, so as to influence the defeated of keyboard
Enter function.
The content of the invention
Therefore, the present invention provides a kind of luminous key device with antistatic protection function, above-mentioned because outside quiet to solve
Electricity or electrostatic enters film circuit board via light-emitting component as caused by static gun, electrostatic damage circuit board and influence keyboard
Input function the problem of.
In order to reach above-mentioned purpose, the invention discloses a kind of key device, include bottom plate, keycap, lifting supporting mechanism,
Light-emitting component and circuit board, the keycap are arranged above the bottom plate, and the lifting supporting mechanism is arranged at the bottom plate and the keycap
Between, to support the keycap to be moved up and down with respect to the bottom plate, the light-emitting component towards the keycap to emit beam, the circuit
Plate includes the first film layer, spacer structure and the second film layer, and first film layer is arranged on the bottom plate, and the spacer structure is set
In in first film layer, second film layer is arranged on the spacer structure, first film layer, the spacer structure and second film layer
One of with first film layer, the spacer structure and second film layer it is wherein another between formed with an accommodation space,
And the light-emitting component is arranged in the accommodation space.
As optional technical scheme, the circuit board also includes：Light shield layer, the light shield layer are arranged at second film layer
On, the light shield layer at light-emitting component in that should have transmission region.
As optional technical scheme, the light shield layer is as made by printing-ink material, and the transmission region is printed with half tone
The mode of brush or laser carved mode are molded.
As optional technical scheme, first film layer has carrier film area, first switch firing point and power supply contact, should
Second film layer has second switch firing point and cover layer area, and the light-emitting component electrically connects the power supply contact, the carrier film area with
The cover layer area forms the accommodation space, and the cover layer area is covered above the accommodation space, makes the accommodation space and the circuit board
Superjacent air space is not passed through the guiding path in the cover layer area, wherein, in response to the up and down motion of the keycap, first switch conducting
Point optionally turns on the second switch firing point.
As optional technical scheme, the cover layer area, should to that should have cover layer area deformation structure at light-emitting component
Cover layer area deformation structure projects above second film layer beyond the cover layer area upward.
As optional technical scheme, to should be at light-emitting component formed with spacer structure port, this covers the spacer structure
Epiphragma area deformation structure, the spacer structure port and the carrier film area common definition accommodation space.
As optional technical scheme, the spacer structure, should to that should have spacer structure deformation structure at light-emitting component
Spacer structure deformation structure is prominent upward and abuts the cover layer area deformation structure.
As optional technical scheme, the carrier film area, should to that should have carrier film area deformation structure at light-emitting component
Carrier film area deformation structure is prominent downward and is arranged at this less than first film layer beyond the carrier film area, the light-emitting component
In carrier film area deformation structure, wherein, the bottom plate is to should be at light-emitting component formed with bottom plate opening, the carrier film area deformation knot
Structure is arranged in the bottom plate opening.
As optional technical scheme, to should be at light-emitting component formed with spacer structure port, this covers the spacer structure
Epiphragma area, the spacer structure port and the carrier film area deformation structure common definition accommodation space.
As optional technical scheme, the spacer structure, should to that should have spacer structure deformation structure at light-emitting component
Spacer structure deformation structure is prominent upward and abuts the cover layer area deformation structure.
As optional technical scheme, first film layer has first switch firing point, and the spacer structure has a carrying
Film area and power supply contact, second film layer have second switch firing point and cover layer area, the carrier film area and the cover layer area
The accommodation space is formed, the light-emitting component electrically connects the power supply contact, and the cover layer area is covered in above the accommodation space, makes this
Accommodation space is not passed through the guiding path in the cover layer area with the circuit board space, wherein, above and below the keycap
Motion, the first switch firing point optionally turn on the second switch firing point.
As optional technical scheme, the cover layer area, should to that should have cover layer area deformation structure at light-emitting component
Cover layer area deformation structure projects above second film layer beyond the cover layer area upward, the cover layer area deformation structure
And the carrier film area common definition accommodation space.
As optional technical scheme, the carrier film area, should to that should have carrier film area deformation structure at light-emitting component
Carrier film area deformation structure is prominent downward and is less than first film layer, and the light-emitting component is arranged at the carrier film area deformation structure
On, wherein, the bottom plate formed with bottom plate opening, the carrier film area deformation structure to that should be arranged in the bottom plate and open at light-emitting component
In mouthful.
As optional technical scheme, first film layer, should to that should have the first film layer deformation structure at light-emitting component
First film layer deformation structure is prominent downward and abuts the carrier film area deformation structure.
As optional technical scheme, to should be at light-emitting component formed with the first film layer port, this holds first film layer
Film carrier area deformation structure is arranged in the first film layer port.
As optional technical scheme, first film layer has carrier film area, first switch firing point and power supply contact, should
Spacer structure has cover layer area, and second film layer has second switch firing point, and the carrier film area is formed with the cover layer area
The accommodation space, the light-emitting component electrically connect the power supply contact, and the cover layer area is covered above the accommodation space, make the accommodating sky
Between the guiding path in the cover layer area is not passed through with the circuit board space, wherein, should in response to the up and down motion of the keycap
First switch firing point optionally turns on the second switch firing point.
As optional technical scheme, the circuit board also includes：Light shield layer, the light shield layer are arranged at the spacer structure
On, the light shield layer at light-emitting component in that should have transmission region.
As optional technical scheme, the light shield layer is as made by printing-ink material, and the transmission region is printed with half tone
The mode of brush or laser carved mode are molded.
As optional technical scheme, the cover layer area, should to that should have cover layer area deformation structure at light-emitting component
Cover layer area deformation structure projects above the spacer structure upward.
As optional technical scheme, to should be at light-emitting component formed with the second film layer port, this covers second film layer
Epiphragma area deformation structure is arranged in the second film layer port.
As optional technical scheme, the carrier film area, should to that should have carrier film area deformation structure at light-emitting component
Carrier film area deformation structure is prominent downward and is arranged at this less than first film layer beyond the carrier film area, the light-emitting component
In carrier film area deformation structure, wherein, the bottom plate is to should be at light-emitting component formed with bottom plate opening, the carrier film area deformation knot
Structure is arranged in the bottom plate opening.
In summary, light-emitting component is arranged at the first film layer, spacer structure and the second film layer by key device of the invention
One of with the first film layer, spacer structure and the second film layer it is wherein another between in the accommodation space that is formed, will hair
With outside electrostatic or as caused by static gun, electrostatic obstructs optical element, thereby outside electrostatic or is produced by static gun
Raw electrostatic just can not enter circuit board via light-emitting component, and then avoid above-mentioned electrostatic damage circuit board and influence keyboard
Input function.
For the present invention foregoing and other technology contents, feature and effect, in the following embodiment coordinated with reference to schema
Detailed description in, can clearly present.
Brief description of the drawings
Fig. 1 is the schematic appearance of first embodiment of the invention keyboard.
Fig. 2 is the schematic appearance of first embodiment of the invention key device.
Fig. 3 is the element explosive view of first embodiment of the invention key device.
Fig. 4 is diagrammatic cross-section of Fig. 2 key device along A-A ' line segments.
Fig. 5 is diagrammatic cross-section of Fig. 2 key device along B-B ' line segments.
Fig. 6 is the enlarged diagram of the C portion of Fig. 4 key device.
Fig. 7 is the enlarged schematic partial view of second embodiment of the invention key device.
Fig. 8 is the enlarged schematic partial view of third embodiment of the invention key device.
Fig. 9 is the enlarged schematic partial view of fourth embodiment of the invention key device.
Figure 10 is the enlarged schematic partial view of fifth embodiment of the invention key device.
Figure 11 is the enlarged schematic partial view of sixth embodiment of the invention key device.
Figure 12 is the enlarged schematic partial view of seventh embodiment of the invention key device.
Figure 13 is the enlarged schematic partial view of eighth embodiment of the invention key device.
Figure 14 is the enlarged schematic partial view of ninth embodiment of the invention key device.
Figure 15 is the enlarged schematic partial view of tenth embodiment of the invention key device.
Embodiment
The direction term being previously mentioned in following examples, such as：Upper and lower, left and right, front or rear etc., only it is to refer to appended drawings
The direction of formula.Therefore, the direction term used is intended to be illustrative and not intended to limit the present invention.Referring to Fig. 1, Fig. 1 is this hair
The schematic diagram of the keyboard 1000 of bright first embodiment.As shown in figure 1, keyboard 1000 has a plurality of key devices, user can
Utilize a plurality of key devices input word, numeral, symbol etc..In in practice, one of a plurality of key devices can be
Caps Lock keys (alphabet size writes shift key), and Caps Lock keys, i.e. key device 1 can be designed with prompting cresset work(
Can, whether started with the current keyboard Caps Lock of light prompt user, the English words for prompting user to input at present are big
Write or small letter, and key device of the present invention 1 can not limit to and be used in Caps Lock keys, hold depending on actual demand.
Fig. 2 to Fig. 5 is referred to, Fig. 2 is the schematic appearance of first embodiment of the invention key device 1, and Fig. 3 is the present invention
The element explosive view of first embodiment key device 1, diagrammatic cross-section of the key device along A-A ' line segments that Fig. 4 is Fig. 2, Fig. 5
For Fig. 2 diagrammatic cross-section of the key device along B-B ' line segments.As shown in Figures 2 to 5, key device 1 includes bottom plate 10, key
Cap 11, lifting supporting mechanism 12, light-emitting component 13 and circuit board 14, keycap 11 are arranged at the top of bottom plate 10, lift support machine
Structure 12 is arranged between bottom plate 10 and keycap 11, to support the opposed bottom 10 of keycap 11 to move up and down.In this embodiment,
It can be scissor leg structure (scissor mechanism) to lift supporting mechanism 12, but the present invention is not limited, such as lifting support
Mechanism 12 also can be volcano mouth structure.
Referring again to Fig. 6, Fig. 6 is the enlarged diagram of the C portion of Fig. 4 key device 1.As shown in Figures 3 to 6, in
In this embodiment, circuit board 14 includes the first film layer 140, spacer structure 141, the second film layer 142 and light shield layer 143, the
One film layer 140 is arranged on bottom plate 10, and spacer structure 141 is arranged in the first film layer 140, and the second film layer 142 is arranged at interval
In structure 141, i.e., spacer structure 141 is between the first film layer 140 and the second film layer 142.First film layer 140 has carrier film
Area 1400, first switch firing point 1401 (as shown in Figure 5) and power supply contact 1402.Second film layer 142 is led with second switch
1420 (as shown in Figure 5) of logical point and cover layer area 1421, cover layer area 1421 have cover layer area deformation structure 1422, cover layer
Area's deformation structure 1422 projects above the second film layer 142 beyond cover layer area 1421 upward.Spacer structure 141 formed with
Spacer structure port 1410, wherein, cover layer area deformation structure 1422, spacer structure port 1410 and carrier film area 1400 are common
Accommodation space 144 is defined, light-emitting component 13 is arranged in accommodation space 144 and electric connection of power supply contact 1402, that is to say, that covers
Epiphragma area deformation structure 1422 and spacer structure port 1410 are positioned corresponding at light-emitting component 13 respectively, and spacer structure leads to
Mouth 1410 allows light-emitting components 13 by avoid light-emitting component 13 from interfering with spacer structure 141.
In addition, key device 1 can be Caps Lock keys (alphabet size writes shift key), in response to the up and down motion of keycap 11,
First switch firing point 1401 optionally turns on second switch firing point 1420, big to change current keyboard English character
Small write state, and then optionally whether triggering light-emitting component 13 emits beam towards keycap 11.For example, when keycap 11 first
It is secondary second switch firing point 1420 is touched first switch firing point 1401, to produce big write command.Now, light-emitting component 13 can
To send the light towards the broken hole position of keycap 11 (as shown in Figure 3), the broken hole position of key device 1 is lighted, inform user's mesh
Preceding English alphabet is in big write state.Second switch firing point 1420 is set to touch first switch firing point second when keycap 11
1401, then cancel the big write command.Now, light-emitting component 13 extinguishes, and the broken hole position of key device 1 is not lighted, informs user
English alphabet is in small write state at present.
In addition, light shield layer 143 is arranged in the second film layer 142, light shield layer 143 has printing opacity at corresponding light-emitting component 13
Region 1430, the light that light-emitting component 13 is sent are only capable of reaching the broken of keycap 11 through the transmission region 1430 of light shield layer 143
At hole, therefore through the size or shape for changing transmission region 1430, you can control reaches through transmission region 1430
The light number or shape of keycap 11.In this embodiment, light shield layer 143 can be as made by printing-ink material, and transparent area
Domain 1430 can be in a manner of screen painting or laser carved mode is molded, but the present invention is not limited.
It is noted that in the present invention, because cover layer area 1421 covers the top of accommodation space 144, make accommodating sky
Between 144 be not passed through the guiding path in cover layer area 1421 with the superjacent air space of circuit board 14, therefore outside electrostatic or by quiet
Electrostatic caused by electric rifle can not enter circuit board 14 via the power supply contact 1402 of the lower section of light-emitting component 13, and then avoid electricity
Road plate 14 damages and influences the input function of keyboard 1000.But the first film layer 140 of circuit board 14 of the present invention, spacer structure
141st, the second film layer 142 and the structure design of light shield layer 143 can be not limited only to above-described embodiment, in other words, as long as energy
Accommodation space 144 and the superjacent air space of circuit board 14 can not be formed the structure design of the guiding path through cover layer area 1421
It is all scope.
For example, referring to Fig. 7, Fig. 7 is the enlarged schematic partial view of second embodiment of the invention key device 2.Such as
Shown in Fig. 7, the main difference of key device 2 and aforementioned keys device 1 is in the spacer structure 141 of key device 2 is corresponding to be sent out
There is spacer structure deformation structure 1411, spacer structure deformation structure 1411 is prominent upward and abuts cover layer at optical element 13
Area's deformation structure 1422.And this embodiment and the element with identical label in above-described embodiment, there is identical structure to set for it
Meter and action principle, for the sake of clarity, are repeated no more in this.
Referring to Fig. 8, Fig. 8 is the enlarged schematic partial view of third embodiment of the invention key device 3.As shown in figure 8, press
The main difference of key apparatus 3 and aforementioned keys device 1,2 is in the 1400 corresponding light-emitting component of carrier film area of key device 3
There is carrier film area deformation structure 1403, carrier film area deformation structure 1403 is prominent downward and is less than carrier film area 1400 at 13
The first film layer 140 in addition, light-emitting component 13 are arranged in carrier film area deformation structure 1403, the corresponding light-emitting component 13 of bottom plate 10
Place is formed with bottom plate opening 100, and carrier film area deformation structure 1403 is arranged in bottom plate opening 100, and cover layer area 1421 is right
Answer and do not have cover layer area deformation structure 1422 at light-emitting component 13, be i.e. the second film layer 142 is slab construction.And this embodiment with
There is the element of identical label, it has identical structure design and action principle, for the sake of clarity, in this not in above-described embodiment
Repeat again.
Referring to Fig. 9, Fig. 9 is the enlarged schematic partial view of fourth embodiment of the invention key device 4.As shown in figure 9, press
The main difference of key apparatus 4 and aforementioned keys device 3 is at the corresponding light-emitting component 13 of spacer structure 141 of key device 4
Formed with spacer structure port 1410, wherein, cover layer area 1421, spacer structure port 1410 and carrier film area deformation structure
1403 common definition accommodation spaces 144.In addition, in other embodiment, can shape at the corresponding light-emitting component 13 in cover layer area 1421
Into there is cover layer area deformation structure 1422, cover layer area deformation structure 1422 projects above beyond cover layer area 1421 upward
The second film layer 142, cover layer area deformation structure 1422, spacer structure port 1410 and carrier film area deformation structure 1403 are common
Define accommodation space 144.And this embodiment and the element with identical label in above-described embodiment, there is identical structure to set for it
Meter and action principle, for the sake of clarity, are repeated no more in this.
Referring to Fig. 10, Figure 10 is the enlarged schematic partial view of fifth embodiment of the invention key device 5.Such as Figure 10 institutes
Show, the main difference of key device 5 and aforementioned keys device 4 is in the corresponding luminous member in cover layer area 1421 of key device 5
There is cover layer area deformation structure 1422, cover layer area deformation structure 1422 projects above cover layer area upward at part 13
The second film layer 142 beyond 1421, spacer structure 141, which is corresponded at light-emitting component 13, has spacer structure deformation structure 1411,
And abutting cover layer area deformation structure 1422 prominent upward every structural deformation structure 1411.And this embodiment and above-described embodiment
In have identical label element, it has identical structure design and action principle, for the sake of clarity, repeated no more in this.
Figure 11 is referred to, Figure 11 is the enlarged schematic partial view of sixth embodiment of the invention key device 6.Such as Figure 11 institutes
Show, the main difference of key device 6 and aforementioned keys device 1 is in the spacer structure 141 of key device 6 has carrier film
Area 1400 and power supply contact 1402, the second film layer 142 have cover layer area 1421, and cover layer area 1421 is corresponded at light-emitting component 13
With cover layer area deformation structure 1422, cover layer area deformation structure 1422 projects above beyond cover layer area 1421 upward
The second film layer 142, wherein, cover layer area deformation structure 1422 and the common definition accommodation space 144 of carrier film area 1400.And this
Embodiment and the element in above-described embodiment with identical label, it has identical structure design and action principle, to ask letter
It is clean, repeated no more in this.
Figure 12 is referred to, Figure 12 is the enlarged schematic partial view of seventh embodiment of the invention key device 7.Such as Figure 12 institutes
Show, the main difference of key device 7 and aforementioned keys device 6 is in the corresponding luminous member in carrier film area 1400 of key device 7
There is carrier film area deformation structure 1403, bottom plate 10 is corresponded at light-emitting component 13 formed with bottom plate opening 100, carrier film at part 13
Area's deformation structure 1403 is prominent downward and is less than the first film layer 140, and is arranged in bottom plate opening 100, and light-emitting component 13 is set
It is placed in carrier film area deformation structure 1403, there is the first film layer deformation structure at the corresponding light-emitting component 13 of the first film layer 140
1404, the first film layer deformation structure 1404 is prominent downward and abuts carrier film area deformation structure 1403.In addition, in other implementations
In example, can also not have cover layer area deformation structure 1422 prominent upward at the corresponding light-emitting component 13 in cover layer area 1421,
That is the second film layer 142 can be slab construction.And this embodiment and the element with identical label in above-described embodiment, it has phase
Same structure design and action principle, for the sake of clarity, is repeated no more in this.
Figure 13 is referred to, Figure 13 is the enlarged schematic partial view of eighth embodiment of the invention key device 8.Such as Figure 13 institutes
Show, the main difference of key device 8 and aforementioned keys device 7 be in, at the corresponding light-emitting component 13 of the first film layer 140 formed with
First film layer port 1405, carrier film area deformation structure 1403 are arranged in the first film layer port 1405.In addition, in other embodiment
In, cover layer area 1421 corresponds to the cover layer area deformation structure 1422 that can also do not have protrusion upward at light-emitting component 13, i.e.,
Second film layer 142 can be slab construction.And this embodiment and the element with identical label in above-described embodiment, it has identical
Structure design and action principle, for the sake of clarity, repeated no more in this.
Figure 14 is referred to, Figure 14 is the enlarged schematic partial view of ninth embodiment of the invention key device 9.Such as Figure 14 institutes
Show, the main difference of key device 9 and aforementioned keys device 1 is in the first film layer 140 has carrier film area 1400 and power supply
Contact 1402, spacer structure 141 have cover layer area 1421, and light shield layer 143 is arranged on spacer structure 141, light shield layer 143 in
There is transmission region 1430 at corresponding light-emitting component 13, there is the deformation of cover layer area at the corresponding light-emitting component 13 in cover layer area 1421
Structure 1422, the second film layer 142 are corresponded at light-emitting component 13 formed with the second film layer port 1423, cover layer area deformation structure
1422 project above the second film layer 142 upward, and are arranged in the second film layer port 1423.And this embodiment and above-mentioned implementation
There is the element of identical label, it has identical structure design and action principle, for the sake of clarity, repeated no more in this in example.
Figure 15 is referred to, Figure 15 is the enlarged schematic partial view of tenth embodiment of the invention key device 10.Such as Figure 15 institutes
Show, the main difference of key device 10 and aforementioned keys device 9 is in carrier film area 1400 corresponds to be had at light-emitting component 13
Carrier film area deformation structure 1403, carrier film area deformation structure 1403 it is prominent downward and less than the beyond carrier film area 1400
One film layer 140, light-emitting component 13 are arranged in carrier film area deformation structure 1403, at the corresponding light-emitting component 13 of bottom plate 10 formed with
Bottom plate opening 100, carrier film area deformation structure 1403 are arranged in bottom plate opening 100.In addition, in other embodiment, covering
Also can not have the cover layer area deformation structure 1422 of protrusion upward, i.e. spacer structure at the corresponding light-emitting component 13 in film area 1421
141 can be slab construction.And this embodiment and the element with identical label in above-described embodiment, there is identical structure to set for it
Meter and action principle, for the sake of clarity, are repeated no more in this.
Compared to prior art, light-emitting component is arranged at the first film layer, spacer structure and by key device of the invention
One of two film layers and the first film layer, spacer structure and the second film layer it is wherein another between in the accommodation space that is formed,
With by light-emitting component with outside electrostatic or electrostatic obstructs as caused by static gun, thereby outside electrostatic or by electrostatic
Electrostatic caused by rifle just can not enter circuit board via light-emitting component, and then avoid above-mentioned electrostatic damage circuit board and influence
The input function of keyboard.The foregoing is only presently preferred embodiments of the present invention, it is all done according to scope of the present invention patent it is equal
Deng change and modification, it should all belong to covering scope of the invention.
Claims (21)
1. a kind of key device, it is characterised in that the key device includes：
Bottom plate；
Keycap, it is arranged above the bottom plate；
Supporting mechanism is lifted, it is arranged between the bottom plate and the keycap, to support the keycap to make to transport up and down with respect to the bottom plate
It is dynamic；
Light-emitting component, it towards the keycap emitting beam；And
Circuit board, the circuit board include：
First film layer, it is arranged on the bottom plate；
Spacer structure, it is arranged in first film layer；And
Second film layer, it is arranged on the spacer structure, one of first film layer, the spacer structure and second film layer
With first film layer, the spacer structure and second film layer it is wherein another between formed with accommodation space, and the light-emitting component
It is arranged in the accommodation space, one of the spacer structure and second film layer have cover layer area, and the cover layer area is covered
Cover above the accommodation space, the accommodation space is not passed through the guiding path in the cover layer area with the circuit board space.
2. key device as claimed in claim 1, it is characterised in that the circuit board also includes：
Light shield layer, the light shield layer are arranged in second film layer, and the light shield layer at light-emitting component in that should have transmission region.
3. key device as claimed in claim 2, it is characterised in that the light shield layer is somebody's turn to do as made by printing-ink material
Transmission region is in a manner of screen painting or laser carved mode is molded.
4. key device as claimed in claim 1, it is characterised in that there is first film layer carrier film area, first switch to lead
Logical point and power supply contact, second film layer have second switch firing point and cover layer area, and the light-emitting component electrically connects the power supply
Contact, the carrier film area and the cover layer area form the accommodation space, and the cover layer area is covered above the accommodation space, makes the appearance
The guiding path in the cover layer area is not passed through between being empty with the circuit board space, wherein, in response to the fortune up and down of the keycap
Dynamic, the first switch firing point optionally turns on the second switch firing point.
5. key device as claimed in claim 4, it is characterised in that the cover layer area at light-emitting component to that should have covering
Film area deformation structure, the cover layer area deformation structure project above second film layer beyond the cover layer area upward.
6. key device as claimed in claim 5, it is characterised in that the spacer structure to should at light-emitting component formed with
Every structure port, the cover layer area deformation structure, the spacer structure port and the carrier film area common definition accommodation space.
7. key device as claimed in claim 5, it is characterised in that the spacer structure at light-emitting component to that should have interval
Structural deformation structure, the spacer structure deformation structure is prominent upward and abuts the cover layer area deformation structure.
8. key device as claimed in claim 4, it is characterised in that the carrier film area at light-emitting component to that should have carrying
Film area deformation structure, the carrier film area deformation structure is prominent downward and is less than first film layer beyond the carrier film area, should
Light-emitting component is arranged in the carrier film area deformation structure, wherein, the bottom plate to should at light-emitting component formed with bottom plate opening,
The carrier film area deformation structure is arranged in the bottom plate opening.
9. key device as claimed in claim 8, it is characterised in that the spacer structure to should at light-emitting component formed with
Every structure port, the cover layer area, the spacer structure port and the carrier film area deformation structure common definition accommodation space.
10. key device as claimed in claim 8, it is characterised in that between the spacer structure is to that should have at light-emitting component
Every structural deformation structure, the spacer structure deformation structure is prominent upward and abuts the cover layer area deformation structure.
11. key device as claimed in claim 1, it is characterised in that first film layer has first switch firing point, between being somebody's turn to do
There is a carrier film area and power supply contact every structure, second film layer has second switch firing point and cover layer area, the carrying
Film area and the cover layer area form the accommodation space, and the light-emitting component electrically connects the power supply contact, and the cover layer area is covered in this
Above accommodation space, the accommodation space is set to be not passed through the guiding path in the cover layer area with the circuit board space, wherein,
In response to the up and down motion of the keycap, the first switch firing point optionally turns on the second switch firing point.
12. key device as claimed in claim 11, it is characterised in that covered to that should have at light-emitting component in the cover layer area
Epiphragma area deformation structure, the cover layer area deformation structure project above second film layer beyond the cover layer area upward,
The cover layer area deformation structure and the carrier film area common definition accommodation space.
13. key device as claimed in claim 11, it is characterised in that held to that should have at light-emitting component in the carrier film area
Film carrier area deformation structure, the carrier film area deformation structure is prominent downward and is less than first film layer, and the light-emitting component is arranged at
In the carrier film area deformation structure, wherein, the bottom plate is to should be at light-emitting component formed with bottom plate opening, the carrier film area deformation
Structure is arranged in the bottom plate opening.
14. key device as claimed in claim 13, it is characterised in that first film layer is to that should have the at light-emitting component
One film layer deformation structure, the first film layer deformation structure is prominent downward and abuts the carrier film area deformation structure.
15. key device as claimed in claim 13, it is characterised in that first film layer to should at light-emitting component formed with
First film layer port, the carrier film area deformation structure are arranged in the first film layer port.
16. key device as claimed in claim 1, it is characterised in that there is first film layer carrier film area, first switch to lead
Logical point and power supply contact, the spacer structure have cover layer area, and second film layer has second switch firing point, the carrier film area
The accommodation space is formed with the cover layer area, the light-emitting component electrically connects the power supply contact, and the cover layer area covers the accommodating sky
Between top, the accommodation space and the circuit board space is not passed through the guiding path in the cover layer area, wherein, in response to this
The up and down motion of keycap, the first switch firing point optionally turn on the second switch firing point.
17. key device as claimed in claim 16, it is characterised in that the circuit board also includes：
Light shield layer, the light shield layer are arranged on the spacer structure, and the light shield layer at light-emitting component in that should have transmission region.
18. key device as claimed in claim 17, it is characterised in that the light shield layer as made by printing-ink material, and
The transmission region is in a manner of screen painting or laser carved mode is molded.
19. key device as claimed in claim 16, it is characterised in that covered to that should have at light-emitting component in the cover layer area
Epiphragma area deformation structure, the cover layer area deformation structure project above the spacer structure upward.
20. key device as claimed in claim 19, it is characterised in that second film layer to should at light-emitting component formed with
Second film layer port, the cover layer area deformation structure are arranged in the second film layer port.
21. key device as claimed in claim 16, it is characterised in that held to that should have at light-emitting component in the carrier film area
Film carrier area deformation structure, the carrier film area deformation structure is prominent downward and is less than first film layer beyond the carrier film area,
The light-emitting component is arranged in the carrier film area deformation structure, wherein, the bottom plate formed with bottom plate to that should open at light-emitting component
Mouthful, the carrier film area deformation structure is arranged in the bottom plate opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008399.9A CN105448568B (en) | 2015-12-29 | 2015-12-29 | Key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008399.9A CN105448568B (en) | 2015-12-29 | 2015-12-29 | Key device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448568A CN105448568A (en) | 2016-03-30 |
| CN105448568B true CN105448568B (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511008399.9A Active CN105448568B (en) | 2015-12-29 | 2015-12-29 | Key device |
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| Country | Link |
|---|---|
| CN (1) | CN105448568B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024471A (en) * | 2016-06-16 | 2016-10-12 | 苏州达方电子有限公司 | Light-emitting keyboard and light-emitting key thereof |
| CN108878202A (en) * | 2018-07-23 | 2018-11-23 | 苏州达方电子有限公司 | Backlight module and its manufacturing method |
| US11804343B2 (en) | 2018-08-01 | 2023-10-31 | Lite-On Electronics (Guangzhou) Limited | Light-emitting keyboard and backlight module |
| CN110794505B (en) * | 2018-08-01 | 2020-11-17 | 光宝电子(广州)有限公司 | Light guide plate and input device |
| CN110010397A (en) | 2019-05-15 | 2019-07-12 | 光宝电子(广州)有限公司 | Luminous button |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2667559Y (en) * | 2003-07-24 | 2004-12-29 | 达方电子股份有限公司 | Thin film circuit assembly and luminous keyboard utilizing the same film circuit assembly |
| CN201392756Y (en) * | 2009-03-06 | 2010-01-27 | 鸿富锦精密工业（深圳）有限公司 | Key module of mobile equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05101737A (en) * | 1991-10-09 | 1993-04-23 | Chiyoda Integure Kk | Light emitting element mounted membrane switch |
-
2015
- 2015-12-29 CN CN201511008399.9A patent/CN105448568B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2667559Y (en) * | 2003-07-24 | 2004-12-29 | 达方电子股份有限公司 | Thin film circuit assembly and luminous keyboard utilizing the same film circuit assembly |
| CN201392756Y (en) * | 2009-03-06 | 2010-01-27 | 鸿富锦精密工业（深圳）有限公司 | Key module of mobile equipment |
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| Publication number | Publication date |
|---|---|
| CN105448568A (en) | 2016-03-30 |
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