Illuminated keyboard
Technical field
The present invention discloses a kind of input unit, more particularly to the illuminated keyboard with light-emitting function.
Background technique
Common computer peripheral input unit includes mouse, keyboard and trace ball etc., and wherein keyboard can directly key in text
And symbol gives computer, therefore the attention quite by user and input unit manufacturer.And subject of the present invention is keyboard.
Referring to Fig. 1, it is the surface structure schematic diagram of existing keyboard.There are multiple keys on the surface of existing keyboard 1
10, those keys 10 are classified as general key 101, number key 102 and function key 103 etc., those keys are for user with hand
Finger presses and generates corresponding signal and give computer, so that computer is executed touched keypress function, such as general key 101 is to defeated
Entering the symbols such as English alphabet, number key 102 is to input number, and function key 103 is then providing various functions, such as F1~
F12 etc..Wherein existing keyboard 1 is the keyboard of a laptop.
With the evolution of science and technology, keyboard manufacturer is dedicated to researching and developing the various keyboards with specific function, be made with meeting difference
The various demands of user, wherein with illuminated keyboard most by the favor of user.The internal junction of existing illuminated keyboard will be illustrated next
Structure.Referring to Fig. 2, it is the structural profile illustration of existing illuminated keyboard.Existing illuminated keyboard 2 includes multiple 20 (Fig. 2 of key
In only show one), film switch circuit 21, light guide plate 22, light-emitting component 23, support plate 24 and power supply circuit plate 25, and
Key 20 includes button cap 201, scissor connecting element 202 and elastic element 203.In existing illuminated keyboard 2, above-mentioned each member
Part is basipetal put in order for button cap 201, scissor connecting element 202, elastic element 203, film switch circuit 21,
Light guide plate 22 and support plate 24, light-emitting component 23 and power supply circuit plate 25 are located at the side of film switch circuit 21.Wherein,
Existing illuminated keyboard 2 is the keyboard of laptop (not shown in the figures).
In key 20, button cap 201 is revealed in except existing keyboard 2 and can be pressed by user, scissor connecting element
202 to connect button cap 201 and support plate 24, and elastic element 203 pass through scissor connecting element 202 and respectively with press
Keycap 201 and film switch circuit 21 contact.Film switch circuit 21 positioned at elastic element 203 then can be by elastic element
203 support and generate push button signalling.Power supply circuit plate 25 is located at the side of film switch circuit 21, and light-emitting component 23 is set to
In power supply circuit plate 25, so that light beam B caused by light-emitting component 23 can be projected into light guide plate 22, and light guide plate 22 can then draw
Light guide bundles B is projected to button cap 201.Wherein 23 system of light-emitting component is lateral LED.
In Fig. 2, button cap 201 has transmission region 2011, is revealed in the upper surface of button cap 201, that is, transparent area
Domain 2011 is and text shown on button cap 201.On the other hand, light guide plate 22 has light directing site 221, and light directing site
221 are located at the lower section of transmission region 2011 corresponding to transmission region 2011.The light beam B caused by the light-emitting component 23, which is projected into, to be led
Tabula rasa 22, light beam B are totally reflected in light guide plate 22.When light beam B is projected to light directing site 221, light directing site 221 can destroy light
The transmission region 2011 of beam B being totally reflected and light beam B is guided to be projected to button cap 201, so that transmission region 2011 generates illumination effect.
However, can be damaged to eyes, seriously when blue light composition included in light beam is irradiated to the eyes of user
If can cause eyes that irreversible macular diseases occur.Therefore, it is necessary to a kind of illuminated keyboards of avoidable injury eyes.
Summary of the invention
The purpose of the present invention is to provide a kind of illuminated keyboards of avoidable injury eyes.
In a preferred embodiment, the present invention provide a kind of illuminated keyboard include an at least button cap, a support plate and
One backlight module, at least a button cap is revealed in except the illuminated keyboard for this, and an at least button cap has an at least light transmission
Region.The support plate is located at the lower section of an at least button cap.The backlight module is set in the support plate or the support plate
Lower section to generate a light beam, and is projected to an at least transmission region, which includes a light-emitting component, a leaded light
Plate and primary antibody blue Light Film.The light-emitting component is to generate the light beam, and the light guide plate is set in the support plate or the support
The lower section of plate makes the light beam be projected to the transmission region to guide the light beam for being projected into the light guide plate.The anti-blue Light Film
It is covered in the light guide plate, to filter the blue light composition in the light beam when light beam passes through the anti-blue Light Film.
In a preferred embodiment, the present invention also provide a kind of illuminated keyboard include an at least button cap, a support plate with
An and backlight module.At least a button cap is revealed in except the illuminated keyboard for this, and an at least button cap has a transmission region,
The transmission region is set on an at least button cap.The support plate is located at the lower section of an at least button cap, and the backlight module
It is set in the support plate or the lower section of the support plate, to generate a light beam, and is projected to the transmission region.Wherein, this at least one
Include blue light barrier material in button cap, the transmission region of an at least button cap is made to may filter that the blue light composition in the light beam.
In a preferred embodiment, which passes through injection with plastic material mixing blue light barrier material
Forming technique and formed, so that the transmission region of an at least button cap is may filter that the blue light composition in the light beam.
In a preferred embodiment, which passes through extra quality injection with plastic material and blue light barrier material
Forming technique and formed, and the transmission region is formed with blue light barrier material, and the transparent area of an at least button cap is made
Domain may filter that the blue light composition in the light beam.
In a preferred embodiment, a light transmission paint is coated on an at least button cap, and the light transmission paint is with light color
Paint mixes blue light barrier material and forms, and the transmission region of an at least button cap is made to may filter that the blue light composition in the light beam.
In short, the advantages of illuminated keyboard provided by the invention and beneficial effect are: illuminated keyboard is in backlight module
Be arranged anti-blue Light Film or in button cap be added blue light barrier material, such as mixing plastic material and blue light barrier material or
Mix the practices such as light transmission paint and blue light barrier material.It can enable the light beam for being projected to button cap that can be filtered the fortune of blue light whereby
Make.Therefore, illuminated keyboard of the present invention can protect the eyes of user, to solve problem of the prior art.
Detailed description of the invention
Fig. 1 is the surface structure schematic diagram of existing keyboard.
Fig. 2 is the structural profile illustration of existing illuminated keyboard.
Fig. 3 is structural profile illustration of the illuminated keyboard of the present invention in the first preferred embodiment.
Fig. 4 is structure schematic top plan view of the button cap of illuminated keyboard of the present invention in the first preferred embodiment.
Fig. 5 is structural profile illustration of the illuminated keyboard of the present invention in the second preferred embodiment.
Fig. 6 is structure schematic top plan view of the button cap of illuminated keyboard of the present invention in the second preferred embodiment.
Description of symbols:
1 keyboard, 2,3,4 illuminated keyboard
10,20 key, 21 film switch circuit
22,313,413 light guide plate, 23,312,412 light-emitting component
24,36,46 support plate, 25,311,411 power supply circuit plate
32,42 button caps 31,41 backlight modules
33,43 connecting elements 34,44 trigger elements
35, the general key of 45 switching circuit board 101
102 number key, 103 function key
The anti-blue Light Film of 221 light directing site 314
315,414 reflecting elements 316,415 shading elements
321,421,2011 transmission regions 322,422 light transmission paints
323,423 photo-curing paint, 361 support plate aperture
3131 light guide plate aperture B light beams
Specific embodiment
In view of puzzlement caused by the prior art, the present invention provides a kind of illuminated keyboard that can solve prior art problem.
Referring to Fig. 3, Fig. 3 is structural profile illustration of the illuminated keyboard of the present invention in the first preferred embodiment.Light key of the present invention
Disk 3 include backlight module 31, multiple button caps 32, multiple connecting elements 33, multiple elastic elements 34, switching circuit board 35 and
Support plate 36, multiple button caps 32 are revealed in except its illuminated keyboard 3, are available for users to so that finger presses and moves, are made out
It closes circuit board 35 and generates corresponding push button signalling, and the push button signalling can be transmitted and give electronic device (example connected to it
For example laptop), so that electronic device is executed touched keypress function.Button cap 32 has multiple transmission regions 321, more
A transmission region 321 is shown on the upper surface of button cap 32.In this preferred embodiment, multiple transmission regions 321 are with laser
Engraving technology is formed in the upper surface of button cap 32.
Please refer to Fig. 3 and Fig. 4, Fig. 4 is the button cap of illuminated keyboard of the present invention in the first preferred embodiment
Structure schematic top plan view.Multiple transmission regions 321 of button cap 32 are shown as the shape of character " R " and character " work ".Wherein,
Light transmission paint 322, impermeable lac varnish (not shown in the figures) and photo-curing paint 323 are from bottom to top sequentially coated on button cap 32,
And opaque paint is covered by photo-curing paint 323, Gu Tuzhong is not shown.Its transmission region 321 will be opaque on button cap 32
Paint and photo-curing paint 323 are excluded and are formed, that is, light transmission paint 322 is only coated on transmission region 321, therefore transmission region 321
For light by having translucent effect.
Support plate 36 is located at the lower section of multiple button caps 32, can carry multiple button caps 32, multiple connecting elements 33, more
A trigger element 34 and switching circuit board 35 are thereon.Support plate 36 has multiple support plate apertures 361, and each support plate is opened
Hole 361 corresponds to a transmission region 321.Connecting element 33 is connected to corresponding button cap 32 and support plate 36, with solid
Button cap 32 is determined in support plate 36 and moving up and down button cap 32 can relative to support plate 36.Trigger element 34 is located at opposite
The lower section for the button cap 32 answered, can be pushed against by mobile button cap 32 and deformation occurs.Switching circuit board 35 is located at triggering member
The lower section of part 34, function export corresponding push button signalling to be triggered the triggering of element 34.Support plate 36 is set to switch
The lower section of circuit board 35 and it is connected to connecting element 33, switching circuit board 35 can be carried thereon.In this preferred embodiment,
Connecting element 33 is scissor connecting element, and trigger element 34 is elastic rubbery body, and switching circuit board 35 is thin film switch electricity
Road.
In Fig. 3, backlight module 31 is set to the lower section of support plate 36, and function is to generate light beam B, and project light beam B
To transmission region 321.Backlight module 31 include power supply circuit plate 311, light-emitting component 312, light guide plate 313, anti-blue Light Film 314 with
And reflecting element 315.Light-emitting component 312 is located at the lower section of button cap 32 and is set in power supply circuit plate 311, can carry hair
Optical element 312 thereon and is electrically connected at light-emitting component 312, to generate in response to electric power provided by power supply circuit plate 311
Light beam B.Light guide plate 313 is set to the lower section of button cap 32, and to guide light beam B to be projected to button cap 32, and light guide plate 313 has
Light guide plate aperture 3131 corresponds to light-emitting component 312, so that corresponding light-emitting component 312 protrudes into light guide plate aperture 3131,
Light beam B caused by light-emitting component 312 is set to be projected into light guide plate 313.Wherein, light guide plate 313, which is internally provided with, leads
The light-guide devices such as light site or guide-lighting micro-structure, function is identical as the light guide plate of the prior art, and so it will not be repeated and does not show
In figure.In this preferred embodiment, light-emitting component 312 be lateral LED, and power supply circuit plate 311 can be used it is soft
Property circuit board (FPC).
In backlight module 31, anti-blue Light Film 314 is covered in light guide plate 313, can in light beam B pass through anti-blue Light Film 314 when,
Blue light composition in filtered beam B.Reflecting element 315 is set on the lower surface of light guide plate 313, can be reflected off light guide plate
313 light beam B, is again introduced into light beam B in light guide plate 313, and can promote the service efficiency of light beam B.In addition, blue Light Film 314
With shading element 316, it is set on the upper surface of anti-blue Light Film 314 and is arranged in a manner of avoiding transmission region 321, also
I.e. shading element 316 can cover light beam B in place of being not required to light transmission, light beam B be made to throw positioned at the underface of transmission region 321
It is incident upon the luminous place of needs, such as transmission region 321.In short, it includes shading element 316 that illuminated keyboard 3 of the present invention, which uses,
Anti- blue Light Film 314 replace existing anti-dazzling screen.In this preferred embodiment, reflecting element 315, which can be used, is coated on leaded light
The reflectance ink of the lower surface of plate 313, or it is reflector plate, and shading element 316 is then localised application in anti-blue Light Film 314
The ink of upper surface.
Next the touched operation situation of button cap 32 is briefly described: when user presses button cap 32, button cap
32 move down relative to support plate 36, so that connecting element 33 is swung by pushing and pressing, and the button cap 32 to move down pushes against
Trigger element 34, enables that trigger element 34 is supported and deformation occurs and trigger switch circuit board 35, to generate corresponding key
Signal.And when user no longer presses button cap 32, button cap 32 can be produced in response to trigger element 34 by deformed state recovery
Raw elastic force and up moved relative to support plate 36, up moved with pushing against button cap 32, while driving connecting element 33
It swings, so that button cap 32 can restore the position to before being touched.
When light-emitting component 312 generates light beam B by driving, light beam B is projected into light guide plate 313 and in light guide plate
313 inside is totally reflected, and later, the bootable light beam B of light guide plate 313 makes it avoid shading element 36 and sequentially pass through anti-
Blue Light Film 314, the support plate aperture 361 of support plate 36 and switching circuit board 35, to be projected to the transmission region of button cap 32
321.On the other hand, the light beam B left by light guide plate 313 can then be reflected by reflecting element 315, therefore light beam B can be again introduced into and lead
In tabula rasa 313, and it is projected to by the guidance of light guide plate 313 transmission region 321 of button cap 32.Therefore, button cap 32
Transmission region 321 can produce illumination effect, and the eyes that the blue light composition in light beam B has been filtered out without injuring user.
Specifically have three, first, the light guide plate 313 of this preferred embodiment is set to the lower section of support plate 34,
It only illustrates and is used, be not limited thereto.In fact, light guide plate also can be set to according to demand the top of support plate, and prop up
Fagging is then not required to that corresponding support plate aperture is arranged, so that light beam passes through.Second, the fixed form of button cap and it is non-limiting must
Scissor connecting element must be used, the connecting element or magnetic-type structure of other forms also can be used, to fix button cap, and
Enable button cap that can move up and down relative to support plate.Third, shading element 315 and reflecting element 316 in backlight module 31
It can be arranged according to actual needs, and non-limiting shading element 315 and reflecting element 316 are the necessary component of backlight module.
In addition, the present invention also provides from the second preferred embodiment of the above-mentioned different practices.Please refer to Fig. 5 and Fig. 6,
Fig. 5 is structural profile illustration of the illuminated keyboard of the present invention in the second preferred embodiment, and Fig. 6 is illuminated keyboard of the present invention
Structure schematic top plan view of the button cap in the second preferred embodiment.Illuminated keyboard 4 includes backlight module 41, multiple button caps
42, multiple connecting elements 43, multiple trigger elements 44, switching circuit board 45 and support plate 46, and button cap 42 is with multiple
Transmission region 421, plurality of transmission region 421 for example, character " R " and character " work ", as shown in Figure 5.Illuminated keyboard 4
Each element structure and function it is generally identical as the illuminated keyboard 3 of aforementioned preferred embodiment, and something in common is no longer superfluous
It states, and the difference of the rwo has two, first, the structure of backlight module 41.Second, the structure of button cap 42.
As seen from Figure 5, the backlight module 41 of this preferred embodiment is set to the top of support plate 46 comprising power supply electricity
Road plate 411, light-emitting component 412, light guide plate 413, shading element 414 and reflecting element 415.The function of light-emitting component 412 is
Generate light beam B, and light guide plate 413 be set to button cap 42 lower section and be located at support plate 43 on, with guide light beam B be projected to by
Keycap 42.Power supply circuit plate 411 is set to the side of light guide plate 413, and carries light-emitting component 412 thereon, so that the member that shines
Light beam B caused by part 412 can be projected into light guide plate 413 by the side of light guide plate 413.Reflecting element 415, which is set to, leads
On the lower surface of tabula rasa 413, and shading element 414 is then set on the upper surface of light guide plate 413, wherein in backlight module 41
Each element function it is all identical as aforementioned preferred embodiment, the difference is that only that the setting position of each element is different.
The structure of button cap 42 will be illustrated next.Fig. 6 shows button cap 42 and multiple transmission regions 421, wherein thoroughly
Light region 421 is shown as the shape of character " R " and character " work ".Light transmission paint is from bottom to top sequentially coated on button cap 42
422, impermeable lac varnish (not shown in the figures) and photo-curing paint 423 are only coated with light transmission paint 422 on transmission region 421, therefore
Transmission region 421 is for light by having translucent effect.The button cap 42 of this preferred embodiment and aforementioned preferred embodiment
Button cap 32 the difference is that, light transmission paint 422 in this preferred embodiment with light transmission colored paint mixing blue light barrier material and
Composition, makes the transmission region 421 of button cap 42 may filter that the blue light composition in light beam B.In other words, this preferred embodiment is luminous
The filter blue light function of keyboard 4 is provided by button cap 42.
Further, since button cap is with made by plastic material, therefore illuminated keyboard of the present invention includes also indigo plant using button cap
The mode of photoresist barrier material filters blue light function to provide.Following two practice: the practice one, the plastic cement material of button cap actually can be used
Material can mix blue light barrier material, and form button cap by ejection forming technique, may filter that the transmission region of button cap
Blue light composition in light beam.The practice two, the plastic material and blue light barrier material of button cap can pass through double-material jet formation skill
Art and form button cap, and the transmission region of button cap is formed with blue light barrier material, therefore transmission region may filter that in light beam
Blue light composition.Two kinds of practices are applicable to be the occasion for being coated with light transmission paint on button cap.
As described above, anti-blue Light Film is arranged in backlight module or is added in button cap for illuminated keyboard of the present invention
Blue light barrier material, such as mixing plastic material and blue light barrier material or mixing light transmission paint and blue light barrier material etc. are made
Method.It can enable the light beam for being projected to button cap that can be filtered the running of blue light whereby.Therefore, illuminated keyboard of the present invention can be protected and make
The eyes of user, to solve problem of the prior art.
The foregoing is merely presently preferred embodiments of the present invention, the protection model of the claims being not intended to limit the invention
It encloses, therefore all other without departing from the lower equivalent change or modification completed of spirit disclosed in this invention, is intended to be limited solely by this hair
In the protection scope of bright claims.