CN108987162A - Illuminated keyboard - Google Patents
Illuminated keyboard Download PDFInfo
- Publication number
- CN108987162A CN108987162A CN201810811563.7A CN201810811563A CN108987162A CN 108987162 A CN108987162 A CN 108987162A CN 201810811563 A CN201810811563 A CN 201810811563A CN 108987162 A CN108987162 A CN 108987162A
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- keycap
- layer
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H01H13/83—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
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
- H01H2219/039—Selective or different modes of illumination
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- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The present invention discloses a kind of illuminated keyboard comprising keyboard surface layer, the first backlight module, keycap, the second backlight module and light source circuit board.First light source issues the first light；First light guide plate is set to the top on keyboard surface layer, and the first light guide plate transmits the first light, and the first light is made to reach the first surface layer transmission region；Second light source is close to the second light guide plate, to provide the second light to the second light guide plate；Second light guide plate transmits the second light；Second light shield layer has the second light shield layer transmission region, and the second light shield layer transmission region is passed through for the second light, and the second light is made to advance to keycap light-transparent pattern, and keycap light-transparent pattern is made to shine.The present invention can provide light to the transmission region on keycap and keyboard surface layer respectively by setting multiple sets of light sources, make illuminated keyboard that can become clear display pattern in tow sides, and luminous aspect polynary can be met the requirements.
Description
Technical field
The present invention relates to a kind of illuminated keyboards, and in details of the words, the present invention can be in the bright display figure of tow sides about one kind
The illuminated keyboard of case.
Background technique
In general, backlight module can be arranged in illuminated keyboard, it include light source and light guide plate (light in backlight module
Guide), light guide plate can receive the light that light source is issued, then, by the received light conduction of institute to the positive key of illuminated keyboard
Below cap, then, recycle the scattering mechanism on light guide plate, release light to the front of illuminated keyboard, and allow illuminated keyboard just
The keycap in face shines, and therefore, current illuminated keyboard can only shine in front.
However, gradually popularizing due to illuminated keyboard, user are also more stringent for the lighting requirements of illuminated keyboard, it be such as
What allows illuminated keyboard in addition to can also shine in reverse side other than front shines, and makes the luminous aspect diversification of illuminated keyboard,
It is increasingly becoming present industry technology subject under discussion of interest.
Summary of the invention
The purpose of the present invention is to provide a kind of illuminated keyboards, in addition to can also send out in reverse side other than front shines
Light, so that the luminous aspect diversification of illuminated keyboard.
In order to achieve the above object, the present invention proposes a kind of illuminated keyboard, including keyboard surface layer, the first backlight module, key
Cap, the second backlight module and light source circuit board.The keyboard surface layer has the first surface layer transmission region；First backlight module tool
There are first light source, the first light guide plate and the first reflective layer.The first light source issues the first light；First light guide plate is set to
The top on the keyboard surface layer, first light guide plate transmit first light, and first light is made to reach the first surface layer transparent area
Domain；First reflective layer is located at the side that first light guide plate deviates from the keyboard surface layer, and first reflective layer is to be reflected off
The part of first light guide plate first light returns to part first light in first light guide plate；The keycap has key
Cap light-transparent pattern；Second backlight module has second light source, the second light guide plate, the second light shield layer and the second reflective layer；Wherein,
The second light source is close to second light guide plate, to provide the second light to second light guide plate；Second light guide plate transmit this
Two light；Second light shield layer has the second light shield layer transmission region, which wears for second light
It crosses, second light is made to advance to the keycap light-transparent pattern, and the keycap light-transparent pattern is made to shine；Second reflective layer is located at should
Second light guide plate deviates from the side of second light shield layer, which should to be reflected off the part of second light guide plate
Second light returns to part second light in second light guide plate；The light source circuit board is located at first light guide plate and is somebody's turn to do
Between second light guide plate, which is arranged the first light source and the second light source for providing, and leans on the first light source
Nearly first light guide plate, and make the second light source close to second light guide plate.
In addition, the present invention also proposes a kind of illuminated keyboard, including keycap, switching circuit board, the second backlight module, keyboard table
Layer and the first backlight module.The keycap has keycap light-transparent pattern；The switching circuit board has switch, which can be by this
The triggering of keycap and generate trigger signal；Second backlight module include second light source, the second light guide plate, the second light shield layer with
And second reflective layer, the second light source are set to the switching circuit board, which issues the second light；Second light guide plate
Transmit second light；Second light shield layer is located between second light guide plate and the keycap, which has second
Light shield layer transmission region, second light pass through the second light shield layer transmission region and advance to the keycap light-transparent pattern, so that
The keycap light-transparent pattern shines；Second reflective layer is located at the side that second light guide plate deviates from second light shield layer, this second
Reflective layer makes part second light return to second leaded light to be reflected off the part of second light guide plate second light
In plate；The keyboard surface layer has surface layer transmission region；First backlight module is located at the keyboard surface layer and second backlight module
Between, which has first light source, the first light guide plate and the first reflective layer, which is set to this and opens
Circuit board is closed, which issues the first light；First light guide plate is set to above the keyboard surface layer, first light guide plate
First light is transmitted, first light is made to reach the first surface layer transmission region；First reflective layer is located at first leaded light
Side of the backboard from the keyboard surface layer, first reflective layer to be reflected off the part of first light guide plate first light,
Return to part first light in first light guide plate.
As optional technical solution, which further includes bottom plate, keycap link mechanism and black interval layer.It should
Bottom plate has the first face and the second face；Wherein, second backlight module is close to second face of the bottom plate；The keycap link mechanism
It is set to first face of the bottom plate, the keycap link mechanism is to provide support to the keycap, to enable the keycap obtain along pre-
Determine path to move with respect to the bottom plate and trigger the switch in due course；The black interval layer be located at the switching circuit board and the bottom plate it
Between, the black interval layer is to separate the switching circuit board and the bottom plate, wherein the black interval layer optionally extends to
Close to the position of the second light source, with backstop, the second light source goes out light to the space between the switching circuit board and the bottom plate；It should
Black interval layer optionally extends to the position close to the first light source, with the backstop first light source to the switching circuit board
Space between the bottom plate goes out light.
As optional technical solution, which further includes that bottom plate, keycap link mechanism and switching circuit board are anti-
Photosphere.The bottom plate has the first face and the second face；Wherein, second backlight module is close to second face of the bottom plate；The keycap
Link mechanism is set to first face of the bottom plate, and the keycap link mechanism is to provide support to the keycap, to enable the keycap
It obtains and is moved along predefined paths with respect to the bottom plate and trigger the switch in due course, wherein the switching circuit board also has circuit, the electricity
Road powers to the second light source and the first light source；The switching circuit board reflective layer is set to the circuit close to the one of the bottom plate
Face, the switching circuit board reflective layer go out light to the circuit to reflect the second light source or the first light source.
As optional technical solution, which further includes bottom plate and keycap link mechanism, which has the
On one side with the second face；Wherein, second backlight module is close to second face of the bottom plate；The keycap link mechanism is set to the bottom
First face of plate, the keycap link mechanism are opposite along predefined paths to enable the keycap obtain to provide support to the keycap
The bottom plate moves and triggers the switch in due course, wherein the second light source passes through the bottom plate and extends close to second light guide plate
Position, which sequentially passes through the bottom plate and second light guide plate and extends close to the position of first light guide plate.
As optional technical solution, which provides third light to second light guide plate；Second light guide plate
Transmit the third light；The third light passes through the second light shield layer transmission region and advances to the keycap light-transparent pattern, makes this
Keycap light-transparent pattern shines；Second reflective layer is reflected off the part of second light guide plate third light, make part this
Three light return in second light guide plate.
As optional technical solution, second reflective layer and first reflective layer are configured to single lamina.
In addition, the present invention also proposes a kind of illuminated keyboard, including keycap, keyboard surface layer, the first backlight module, second light source
And circuit of light sources layer.The keycap has keycap light-transparent pattern；The keyboard surface layer has the first surface layer transmission region；First back
Optical module has first light source and the first light guide plate, which issues the first light；First light guide plate is set to this
The top on keyboard surface layer, first light guide plate transmit first light, and first light is made to reach the first surface layer transmission region；
The second light source is towards the keycap, to provide the second light to the keycap light-transparent pattern, and the keycap light-transparent pattern is made to shine；It should
Circuit of light sources layer is located at the side that first light guide plate deviates from the keyboard surface layer, which is set to the circuit of light sources layer
Lower surface, the second light source are set to the upper surface of the circuit of light sources layer.
As optional technical solution, the lower surface of the circuit of light sources layer is the first reflective layer, and first reflective layer is anti-
It penetrates and leaves the part of first light guide plate first light, return to part first light in first light guide plate.
As optional technical solution, the lower surface of the circuit of light sources layer is third light shield layer, which hides
It covers and leaves the part of first light guide plate first light, first light advances to the upper of the circuit of light sources layer with stop portion
Surface.
As optional technical solution, which further has the first light shield layer, first light shield layer tool
There is the first light shield layer light-transparent pattern, when first light advances to the first surface layer transmission region, keeps first light shield layer saturating
Light pattern is brightly displayed in the first surface layer transmission region.
As optional technical solution, which further includes adhesive layer, and the adhesive layer is by the first reflective layer gluing
In the partial region for avoiding first light transmitting on first light guide plate.
Compared to known techniques, illuminated keyboard of the invention can be provided positive keycap by the second light source of setting
Light and so that keycap light-transparent pattern is shone, light can also be provided and bright to the keyboard surface layer of reverse side by the first light source of setting
Bright display transparent pattern makes illuminated keyboard that can become clear display pattern in tow sides, and luminous aspect polynary can be conformed to
It asks.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Figure 1A is the diagrammatic cross-section of the first embodiment of illuminated keyboard of the present invention.
Figure 1B is the enlarged diagram in symbol 1-1 meaning region in Figure 1A.
Fig. 1 C is the enlarged diagram in symbol 1-2 meaning region in Figure 1A.
Fig. 2A is the diagrammatic cross-section of the second embodiment of illuminated keyboard of the present invention.
Fig. 2 B is the enlarged diagram in symbol 2-1 meaning region in Fig. 2A.
Fig. 2 C is the enlarged diagram in symbol 2-2 meaning region in Fig. 2A.
Fig. 2 D is the enlarged diagram in symbol 2-3 meaning region in Fig. 2A.
Fig. 3 A is the diagrammatic cross-section of the first embodiment of illuminated keyboard of the present invention.
Fig. 3 B is the enlarged diagram in symbol 3-1 meaning region in Fig. 3 A.
Fig. 3 C is the enlarged diagram in symbol 3-2 meaning region in Fig. 3 A.
Specific embodiment
The following contents will arrange in pairs or groups schema, and technology contents of the invention are illustrated by particular specific embodiment, are familiar with this skill
The personage of art can other advantages and efficacy of the present invention can be easily understood by content disclosed in the present specification.The present invention also can be by
It is implemented or is applied by other different specific embodiments.The various details in this specification can also be based on different viewpoints and answer
With, without departing from the spirit of the present invention, the various modifications of progress and change.Especially, the ratio of various components is closed in schema
System and relative position only have exemplary use, not represent the actual state that the present invention is implemented.
In addition, it should be noted that keep disclosure more succinct and be readily apparent that, it is identical or close in following embodiment
It will be illustrated using identical symbol like the component of function, and omit the description of identical or impartial feature.
The present invention is mainly to provide a kind of illuminated keyboard, can in just, back lighting at two sides it is more by the luminous aspect of illuminated keyboard
Sample.
First embodiment:
Please also refer to Figure 1A to Fig. 1 C, Figure 1A is the diagrammatic cross-section of the first embodiment of illuminated keyboard of the present invention, figure
1B is the enlarged diagram in symbol 1-1 meaning region in Figure 1A, and Fig. 1 C is the amplification signal in symbol 1-2 meaning region in Figure 1A
Figure, wherein shown in each schema as referenced by left column, the illuminated keyboard 1 of first embodiment includes bottom plate 10, keyboard surface layer
11, the first backlight module 12, keycap 13, the second backlight module 14, light source circuit board 15, switching circuit board 16 and keycap link machine
Structure 17, wherein the first backlight module 12 is located between keyboard surface layer 11 and the second backlight module 14, and keyboard surface layer 11 is, for example, skin
Set, the first backlight module 12 include first light source 121 and the first light guide plate 122, and the second backlight module 14 includes second light source 141
And second light guide plate 142, light source circuit board 15 is between the first light guide plate 122 and the second light guide plate 142, for providing setting
First light source 121 and second light source 141, make first light source 121 close to the first light guide plate 122, and make second light source 141 close to the
Two light guide plates 142.Switching circuit board 16 has switch 161 and circuit board.Switch 161 can by keycap 13 pressing and trigger with
Generate trigger signal.Circuit board is, for example, copper material, can be powered to second light source 141 and first light source 121, and allows the second light
Source 141 and the capable of emitting light of first light source 121.Keycap link mechanism 17 is set to the first face 101 of bottom plate 10, to keycap 13
Support is provided, in time trigger switch 161 to enable keycap 13 that can move along predefined paths opposed bottom 10.
As illustrated in figures 1A and ib, keyboard surface layer 11 and the first backlight module 12 are respectively arranged at anti-close to illuminated keyboard 1
The position in face, and keycap 13 and the second backlight module 14 are respectively arranged at close to the positive position of illuminated keyboard 1, and the second backlight
Module 14 is close to the second face 102 of bottom plate 10.Keyboard surface layer 11 has the first surface layer transmission region 111 for appearing light.
First backlight module 12 has first light source 121, the first light guide plate 122, the first light shield layer 123 and the first reflective layer 124；Its
In, first light source 121 is disposed in proximity to the position of the first light guide plate 122, to provide the first light R1 to the first light guide plate 122.
First light shield layer 123 has the first light shield layer light-transparent pattern 1231, and light can be appeared from the first light shield layer light-transparent pattern 1231,
Wherein, the first light guide plate 122, which receives, and the first light R1 of transmitting is by the total reflection characteristic of the first light guide plate 122 makes the first light
Line R1 can be appeared via the first light shield layer light-transparent pattern 1231, and then, the first light R1 travels down to the first surface layer transparent area
Domain 111, and the display that becomes clear in the first surface layer transmission region 111 of 1 reverse side of illuminated keyboard is, for example, the first light shield layer of mark
Light-transparent pattern 1231, in this way, the illuminated keyboard 1 of the present embodiment can provide the effect of the bright display pattern of reverse side.
In addition, the first light guide plate 122 is provided with the first reflective layer 124 away from the side of the first light shield layer 123, first is reflective
Layer 124 is for reflecting the first light of part for transmitting towards the direction away from the first light shield layer 123 and leaving the first light guide plate 122
R1, subsequent resume in inside for making the part the first light R1 return to the first light guide plate 122 are passed, and are reduced by the first light R1 court and deviated from
The degree of the direction loss of first light shield layer 123, so that the first light R1 is concentrated and made the first surface layer of 1 reverse side of illuminated keyboard saturating
Light region 111 is more bright.
In this present embodiment, as shown in Figure 1 C, the positive keycap 13 of illuminated keyboard 1 is provided with keycap light-transparent pattern 131, key
Cap light-transparent pattern 131 can be used to indicate keycap function, and light can appear herein certainly.The positive second backlight mould of illuminated keyboard 1
Block 14 has second light source 141, the second light guide plate 142, the second light shield layer 143 and the second reflective layer 144.Second light source 141 is set
It is disposed adjacent to the position of the second light guide plate 142, to provide the second light R2 to the second light guide plate 142.Second light shield layer 143 has
Second light shield layer transmission region 1431 and the second light shield layer lightproof area 1432, the second light guide plate 142 receive and transmit the second light
Line R2 keeps the second light R2 saturating via the second light shield layer transmission region 1431 by the total reflection characteristic of the first light guide plate 122
Out, then, the second light R2 travels up to keycap light-transparent pattern 131 and appears herein certainly, and makes illuminated keyboard 1 positive
Keycap light-transparent pattern 131 shines, in this way, the illuminated keyboard 1 of the present embodiment can provide the effect of the bright display pattern of reverse side.
Furthermore the second light shield layer lightproof area 1432 can provide the traveling of the second light R2 and block, and allow the second light
R2 advances to keycap light-transparent pattern 131 via the second light shield layer transmission region 1431.As shown in Figure 1 C, the second light guide plate 142 is carried on the back
Side from the second light shield layer 143 is provided with the second reflective layer 144, passes to reflect towards the direction away from the second light shield layer 143
Part the second light R2 for passing and leaving the second light guide plate 142 makes the part the second light R2 return to the interior of the second light guide plate 142
Subsequent resume in portion is passed, and reduces by the second light R2 towards the degree for deviating from the 143 direction loss of the second light shield layer, so that the second light R2
It concentrates and makes the positive keycap light-transparent pattern 131 of illuminated keyboard 1 more bright.Optionally, the second reflective layer 144 and first
Reflective layer 124 is configured to single lamina, forms component with simplified illuminated keyboard of the present invention.
Optionally, the illuminated keyboard 1 of the present embodiment also in avoided on the first light guide plate 122 first light R1 transmitting
Partial region be coated with viscose and as adhesive layer G, with by adhesive layer G by 124 gluing of the first reflective layer in the first light guide plate 122
On, because adhesive layer G can avoid the region that first light R1 is transmitted on the first light guide plate 122, the first leaded light will not be destroyed
Total reflection characteristic of the plate 122 to the first light R1.
In conclusion the illuminated keyboard of the present embodiment can be by the second light source for being set to light source circuit board and the first light
Source provides light to the second light guide plate and the first light guide plate respectively, makes illuminated keyboard that can become clear display pattern in tow sides, into
And the luminous aspect of the present embodiment illuminated keyboard can be met the requirements.
Second embodiment:
Please also refer to Fig. 2A to Fig. 2 D, Fig. 2A is the diagrammatic cross-section of the second embodiment of illuminated keyboard of the present invention, figure
2B is the enlarged diagram in symbol 2-1 meaning region in Fig. 2A, and Fig. 2 C is the amplification signal in symbol 2-2 meaning region in Fig. 2A
Figure, Fig. 2 D are the enlarged diagram in symbol 2-3 meaning region in Fig. 2A.Wherein, shown in the schema as referenced by left column, this implementation
In example, illuminated keyboard 1 also includes keyboard surface layer 11, the first backlight module 12 and the second backlight module 14, the first backlight module
12 between keyboard surface layer 11 and the second backlight module 14, and second embodiment is with the maximum difference of first embodiment, hair
The not set light source circuit board of light keyboard 1, in the present embodiment, second light source 141 is set to switching circuit board 16, and from switching circuit
Plate 16 extends downwardly through bottom plate 10 and arrives close to the position of the second light guide plate 142, to provide the second light to the second light guide plate 142
(D referring to figure 2., in practical operation, second light source 141 sequentially can pass through bottom plate 10 that is, the second light guide plate 142 and be set R2
Set, in other words, the second light guide plate 142 can correspond to second light source 141 be arranged through hole, second light source 141 pass through bottom plate 10 it
After be placed in the through hole), first light source 121 extends downwardly through bottom plate 10 to guide-lighting close to first from switching circuit board 16
The position of plate 122, to provide the first light R1 (C referring to figure 2.) to the first light guide plate 122.
As shown in Figure 2 A and 2 B, in this present embodiment, first light source 121 sequentially passes through bottom plate 10 and the second light guide plate
142 and extend close to the position of the first light guide plate 122, in practical operation, the second light guide plate 142 can correspond to first light source 121
Through hole is set, and first light source 121 is partially placed in the through hole after passing through bottom plate 10, therefore first light source 121 can be to the
Two light guide plates 142 provide third light R3, can receive the second light guide plate 142 and transmit third light R3, by the second leaded light
The total reflection characteristic of plate 142 allows third light R3 that can advance to keycap light-transparent pattern via the second light shield layer transmission region 1431
131, and the display keycap light-transparent pattern 131 that further becomes clear.In addition, it should be noted that, the second reflective layer 144 can also be reflected towards back
The part third light R3 of the second light guide plate 142 is transmitted and is left in direction from the second light shield layer 143, makes the part third light
R3 returns to the inside transmitting of the second light guide plate 142.
In in use, first light source can be enabled if user is more demanding to the luminous intensity of keycap light-transparent pattern 131
121 and second light source 141 shine simultaneously, so that reaching light at keycap light-transparent pattern 131 is to be supplied to from first light source 121
The third light R3 of second light guide plate 142 and the total of the second light R2 of the second light guide plate 142 is supplied to from second light source 141
With if user requires the luminous intensity of keycap light-transparent pattern 131 general, first light source 121 and second light source 141 can be enabled
One of shine, so that reaching light at keycap light-transparent pattern 131 is to be supplied to the second light guide plate from first light source 121
142 third light R3 or to be supplied to the second light R2 of the second light guide plate 142 from second light source 141.When only opening
When one light source 121, first light source 121 can provide third light R3 to the second light guide plate 142, so that illuminated keyboard 1 is positive
Keycap light-transparent pattern 131 shines, while first light source 121 also provides the first light R1 to the first light guide plate 122, so that shining
First light shield layer light-transparent pattern 1231 of 1 reverse side of keyboard shines, so that illuminated keyboard 1 can be realized just by a light source
Anti- lighting at two sides.
In actual use, the light source of different luminous intensities may be selected as first light source 121 and second light source 141, from
And selectively unlocking according to different light sources, so that the positive keycap light-transparent pattern 131 of illuminated keyboard 1 has the hair of three grades
Luminous intensity, in order to user's use selective under the conditions of different ambient light illuminations.The luminous intensity of the first estate is for example
Luminous intensity when opening simultaneously for first light source 121 and second light source 141, luminous intensity at this time are most strong；Second grade
Luminous intensity of luminous intensity when for example, only opening second light source 141, luminous intensity at this time is medium；The tertiary gradient
Luminous intensity for example, only opens luminous intensity when first light source 121, and luminous intensity at this time is most weak.User can basis
The luminous intensity of first light source 121 and second light source 141 is arranged in actual demand, is not limited with above-mentioned.
In this present embodiment, as shown in Figure 2 A and 2 B, black interval is provided between switching circuit board 16 and bottom plate 10
Layer 181.Black interval layer 181 avoids 16 contact base plate 10 of switching circuit board to separate switching circuit board 16 and bottom plate 10
And cause to damage, also that is, black interval layer 181 can provide protection to switching circuit board 16.Black interval layer 181 can be by such as wheat
It draws made by material, and optionally extends to switch close to the position of second light source 141 with 141 Duis of backstop second light source
Space between circuit board 16 and bottom plate 10 goes out light.In addition, black interval layer 181 is also optionally extended to close to the first light
The position in source 121 goes out light to the space between switching circuit board 16 and bottom plate 10 with backstop first light source 121.
As shown in Figure 2 A and 2 B, in this present embodiment, the circuit 162 of switching circuit board 16 setting on one side close to bottom plate 10
Be equipped with white switching circuit board reflective layer 182 (that is, be provided on the lower surface of circuit 162 white switching circuit board it is reflective
182), to reflect second light source 141 or first light source 121 to circuit 162 layer goes out light, and avoid second light source 141 or the first
Light source 121 is influenced by such as copper material in circuit 162 to the light out of circuit 162 and generates yellow gloss.
In conclusion second light source and first light source are set to switching circuit board by the illuminated keyboard of the present embodiment, so
The setting of light source circuit board can be omitted, and then reaches the purpose for reducing illuminated keyboard thickness in the case where reducing component, and is allowed
The illuminated keyboard of the present embodiment can meet the requirement of slimming.
3rd embodiment:
Please also refer to Fig. 3 A to Fig. 3 C, Fig. 3 A is the diagrammatic cross-section of the first embodiment of illuminated keyboard of the present invention, figure
3B is the enlarged diagram in symbol 3-1 meaning region in Fig. 3 A, and Fig. 3 C is the amplification signal in symbol 3-2 meaning region in Fig. 3 A
Figure, wherein shown in the schema as referenced by left column, 3rd embodiment is with the maximum difference of first embodiment, the present embodiment
Not set second light guide plate of illuminated keyboard 1, the second light shield layer and the second reflective layer, in conjunction with shown in Fig. 3 A to Fig. 3 C, light key
Disk 1 has circuit of light sources layer 19, and the circuit of light sources layer 19 is located at the side that the first light guide plate 122 deviates from keyboard surface layer 11, and
First light source 121 and second light source 141 are respectively arranged at the lower surface and upper surface of circuit of light sources layer 15, specifically, the first light
Source 121 is set to the lower surface of circuit of light sources layer 15, and second light source 141 is set to the upper surface of circuit of light sources layer 15 and the second light
Source 141 is towards keycap 13, directly to provide the to the keycap light-transparent pattern 131 on keycap 13 in the case where being not through light guide plate
Therefore two light R2 can reduce the number of components of the present embodiment illuminated keyboard.
Optionally, the lower surface of circuit of light sources layer 19 is the first reflective layer, and the first reflective layer can be reflected off first
Part the first light R1 of light guide plate 122 makes the part the first light R1 return to the inside of the first light guide plate 122, and reduces the
One light R1 is towards the direction loss for deviating from the first light shield layer 123, so that the first surface layer transmission region 111 of 1 reverse side of illuminated keyboard
It is more bright.
Optionally, the lower surface of circuit of light sources layer 19 is third light shield layer, and third light shield layer, which can cover, leaves first
Part the first light R1 of light guide plate 122 advances to the upper surface of circuit of light sources layer 19 with the backstop part first light R1,
To avoid influence of the first light R1 to the second light R2.
In conclusion the present embodiment illuminated keyboard in tow sides except that can become clear in addition to display pattern, second light source can also be straight
Connect and light gone out to the keycap light-transparent pattern on keycap, use omit the second backlight module in the second light guide plate, the second light shield layer with
Second reflective layer, in this way, the present embodiment can reduce the number of components and reach the purpose for reducing illuminated keyboard thickness, to allow this reality
The illuminated keyboard for applying example can meet the requirement of slimming.
By the above detailed description of preferred embodiments, it is intended to more clearly describe feature and spirit of the invention,
And not protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its purpose
It is intended to cover various changes and has being arranged in the scope of protection of the claims of the invention to be applied of equality.Cause
This, scope of protection of the claims of the invention should illustrate the most wide explanation of work according to above-mentioned, to cause it to cover institute
Possible change and the arrangement of tool equality.
Claims (12)
1. a kind of illuminated keyboard, characterized by comprising:
Keyboard surface layer, the keyboard surface layer have the first surface layer transmission region；
First backlight module, first backlight module include
First light source, the first light source issue the first light；
First light guide plate, first light guide plate are set to the top on the keyboard surface layer, which transmits first light,
First light is set to reach the first surface layer transmission region；And
First reflective layer, first reflective layer are located at the side that first light guide plate deviates from the keyboard surface layer, first reflective layer
To be reflected off the part of first light guide plate first light, return to part first light in first light guide plate；
Keycap, the keycap have keycap light-transparent pattern；
Second backlight module, second backlight module have second light source, the second light guide plate, the second light shield layer and second reflective
Layer；Wherein,
The second light source is close to second light guide plate, to provide the second light to second light guide plate；
Second light guide plate transmits second light；
Second light shield layer has the second light shield layer transmission region, which passes through for second light,
So that second light is advanced to the keycap light-transparent pattern, and the keycap light-transparent pattern is made to shine；And
Second reflective layer is located at the side that second light guide plate deviates from second light shield layer, and second reflective layer is to be reflected off
The part of second light guide plate second light is opened, returns to part second light in second light guide plate；And
Light source circuit board, the light source circuit board are located between first light guide plate and second light guide plate, which uses
The first light source and the second light source are set in providing, make the first light source close to first light guide plate, and make the second light source
Close to second light guide plate.
2. a kind of illuminated keyboard, characterized by comprising:
Keycap, the keycap have keycap light-transparent pattern；
Switching circuit board, the switching circuit board have switch, the switch can by the keycap triggering and generate trigger signal；
Second backlight module, second backlight module include
Second light source, the second light source are set to the switching circuit board, which issues the second light；
Second light guide plate, second light guide plate transmit second light；
Second light shield layer, second light shield layer are located between second light guide plate and the keycap, which has second
Light shield layer transmission region, second light pass through the second light shield layer transmission region and advance to the keycap light-transparent pattern, so that
The keycap light-transparent pattern shines；And
Second reflective layer, second reflective layer are located at the side that second light guide plate deviates from second light shield layer, this is second reflective
Layer makes part second light return to second light guide plate to be reflected off the part of second light guide plate second light
It is interior；
Keyboard surface layer, the keyboard surface layer have surface layer transmission region；And
First backlight module, first backlight module are located between the keyboard surface layer and second backlight module, first backlight
Module includes
First light source, the first light source are set to the switching circuit board, which issues the first light；
First light guide plate, first light guide plate are set to above the keyboard surface layer, which transmits first light, make
First light reaches the first surface layer transmission region；And
First reflective layer, first reflective layer are located at the side that first light guide plate deviates from the keyboard surface layer, first reflective layer
To be reflected off the part of first light guide plate first light, return to part first light in first light guide plate.
3. illuminated keyboard according to claim 2, it is characterised in that: the illuminated keyboard further include:
Bottom plate, the bottom plate have the first face and the second face；Wherein, second backlight module is close to second face of the bottom plate；
Keycap link mechanism, the keycap link mechanism are set to first face of the bottom plate, and the keycap link mechanism is to this
Keycap provides support, triggers the switch in due course to enable the keycap that must move along predefined paths with respect to the bottom plate；And
Black interval layer, the black interval layer are located between the switching circuit board and the bottom plate, and the black interval layer is to separate
The switching circuit board and the bottom plate, wherein
The black interval layer optionally extends to the position close to the second light source, with the backstop second light source to the switch
Space between circuit board and the bottom plate goes out light；And
The black interval layer optionally extends to the position close to the first light source, with the backstop first light source to the switch
Space between circuit board and the bottom plate goes out light.
4. illuminated keyboard according to claim 2, it is characterised in that the illuminated keyboard further include:
Bottom plate, the bottom plate have the first face and the second face；Wherein, second backlight module is close to second face of the bottom plate；
Keycap link mechanism, the keycap link mechanism are set to first face of the bottom plate, and the keycap link mechanism is to this
Keycap provides support, triggers the switch in due course to enable the keycap that must move along predefined paths with respect to the bottom plate, wherein this is opened
Closing circuit board also has circuit, which powers to the second light source and the first light source；And
Switching circuit board reflective layer, the switching circuit board reflective layer are set to the circuit close to the one side of the bottom plate, switch electricity
Road plate reflective layer goes out light to the circuit to reflect the second light source or the first light source.
5. illuminated keyboard according to claim 2, it is characterised in that: the illuminated keyboard further include:
Bottom plate, the bottom plate have the first face and the second face；Wherein, second backlight module is close to second face of the bottom plate；With
And
Keycap link mechanism, the keycap link mechanism are set to first face of the bottom plate, and the keycap link mechanism is to this
Keycap provides support, with enable the keycap be moved along predefined paths with respect to the bottom plate and trigger the switch in due course, wherein this
Two light sources pass through the bottom plate and extend close to the position of second light guide plate, the first light source sequentially pass through the bottom plate and this
Two light guide plates and the position for extending close to first light guide plate.
6. illuminated keyboard according to claim 5, it is characterised in that:
The first light source provides third light to second light guide plate；
Second light guide plate transmits the third light；
The third light passes through the second light shield layer transmission region and advances to the keycap light-transparent pattern, makes the keycap light-transparent pattern
It shines；And
Second reflective layer is reflected off the part of second light guide plate third light, make the part third light return this
In two light guide plates.
7. illuminated keyboard according to claim 1 or 2, it is characterised in that: second reflective layer and first reflective layer at
Shape is single lamina.
8. a kind of illuminated keyboard, characterized by comprising:
Keycap, the keycap have keycap light-transparent pattern；
Keyboard surface layer, the keyboard surface layer have the first surface layer transmission region；
First backlight module, first backlight module include
First light source, the first light source issue the first light；And
First light guide plate, first light guide plate are set to the top on the keyboard surface layer, which transmits first light,
First light is set to reach the first surface layer transmission region；
Second light source, the second light source to provide the second light to the keycap light-transparent pattern, and keep the keycap saturating towards the keycap
Light pattern shines；And
Circuit of light sources layer, the circuit of light sources layer are located at the side that first light guide plate deviates from the keyboard surface layer, which sets
It is placed in the lower surface of the circuit of light sources layer, which is set to the upper surface of the circuit of light sources layer.
9. illuminated keyboard according to claim 8, it is characterised in that: the lower surface of the circuit of light sources layer is first reflective
Layer, which is reflected off the part of first light guide plate first light, make part first light return this
In one light guide plate.
10. illuminated keyboard according to claim 8, it is characterised in that: the lower surface of the circuit of light sources layer is third screening
Photosphere, the part of first light guide plate first light is left in third light shield layer masking, with stop portion the first light row
Enter the upper surface of the circuit of light sources layer.
11. according to claim 1, illuminated keyboard described in 2 or 8, it is characterised in that: first backlight module further has
One light shield layer, which has the first light shield layer light-transparent pattern, when first light advances to the first surface layer light transmission
When region, it is brightly displayed the first light shield layer light-transparent pattern in the first surface layer transmission region.
12. according to claim 1, illuminated keyboard described in 2 or 8, it is characterised in that: the illuminated keyboard further includes adhesive layer, should
Adhesive layer is by the first reflective layer gluing in the partial region for avoiding first light transmitting on first light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811563.7A CN108987162B (en) | 2018-07-23 | 2018-07-23 | Illuminated keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811563.7A CN108987162B (en) | 2018-07-23 | 2018-07-23 | Illuminated keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108987162A true CN108987162A (en) | 2018-12-11 |
| CN108987162B CN108987162B (en) | 2019-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810811563.7A Active CN108987162B (en) | 2018-07-23 | 2018-07-23 | Illuminated keyboard |
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| Country | Link |
|---|---|
| CN (1) | CN108987162B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307644U (en) * | 2011-11-04 | 2012-07-04 | 常熟精元电脑有限公司 | Keyboard apparatus having backlight module |
| CN104576150A (en) * | 2015-01-16 | 2015-04-29 | 苏州达方电子有限公司 | Backlight device and luminous keyboard thereof |
| US20160041329A1 (en) * | 2014-08-05 | 2016-02-11 | Silitech Technology Corporation | Portable Electronic Device Having Shared-Type Back Light Module |
| CN107180722A (en) * | 2017-06-29 | 2017-09-19 | 苏州达方电子有限公司 | Illuminated keyboard |
-
2018
- 2018-07-23 CN CN201810811563.7A patent/CN108987162B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307644U (en) * | 2011-11-04 | 2012-07-04 | 常熟精元电脑有限公司 | Keyboard apparatus having backlight module |
| US20160041329A1 (en) * | 2014-08-05 | 2016-02-11 | Silitech Technology Corporation | Portable Electronic Device Having Shared-Type Back Light Module |
| CN104576150A (en) * | 2015-01-16 | 2015-04-29 | 苏州达方电子有限公司 | Backlight device and luminous keyboard thereof |
| CN107180722A (en) * | 2017-06-29 | 2017-09-19 | 苏州达方电子有限公司 | Illuminated keyboard |
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| Publication number | Publication date |
|---|---|
| CN108987162B (en) | 2019-12-03 |
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