CN106024476A - Backlight structure for luminescent keyboard - Google Patents
Backlight structure for luminescent keyboard Download PDFInfo
- Publication number
- CN106024476A CN106024476A CN201610569525.6A CN201610569525A CN106024476A CN 106024476 A CN106024476 A CN 106024476A CN 201610569525 A CN201610569525 A CN 201610569525A CN 106024476 A CN106024476 A CN 106024476A
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- CN
- China
- Prior art keywords
- light guide
- guide plate
- cured layer
- fluid cured
- light
- 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
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/06—Reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
A backlight structure comprises a light guide plate, a luminescent unit, a reflecting sheet, a fluid solidification layer and a bonding layer, wherein the light guide plate has an incident surface, a light exit surface, and a bottom and a side surface opposite to the light exit surface, the luminescent unit is adjacent to the incident surface, light emitted by the luminescent unit enters into the light guide plate through the incident surface and is emitted out from the light exit surface, the reflecting sheet is placed under the bottom to reflect light emitted out from the bottom, the fluid solidification layer is arranged on the side surface to prevent light from emitting out of the side surface, the bonding layer is bound between the light guide plate and the reflecting sheet to restrict the scope that the fluid solidification layer can enter when assembled to the edges of the reflecting sheet between the reflecting sheet and the light guide plate.
Description
The application is filing date July 31, Application No. 201410374191.8, invention name in 2014
It is referred to as the division of the application for a patent for invention of " a kind of backing structure being applicable to illuminated keyboard and manufacture method thereof "
Application.
Technical field
The present invention is about a kind of backing structure, a kind of backing structure preventing edge light leak.
Background technology
For the use habit of current PC, keyboard is one of indispensable input equipment, in order to
Input word, symbol or numeral.Recently, along with the lifting of consumer's vision, a kind of can be luminous the back of the body
Light keyboard becomes the developing direction that industry is new then.It is said that in general, backlight keyboard uses sidelight type backlight module to make
For its light source, the side that luminous light-emittingdiode is arranged at the incidence surface of its light guide plate, mat also will be used for
The light that this light-emittingdiode is sent just can be entered light guide plate by incidence surface and be penetrated by the exiting surface of light guide plate
Go out so that light transmission base plate and make keyboard produce luminous effect.But, also enter the light of light guide plate
Can be penetrated by the other edge of light guide plate so that the other edge of light guide plate forms bright spot and affects backlight keyboard
Outward appearance.
Summary of the invention
Therefore, the present invention provides a kind of backing structure preventing edge light leak, to solve the problems referred to above.
In order to reach above-mentioned purpose, the invention discloses a kind of backing structure being applicable to illuminated keyboard, include
Light guide plate, luminescence unit, reflector plate, the first adhesive layer and first fluid cured layer.This light guide plate has
Incidence surface, the bottom surface of exiting surface, relatively this exiting surface and side, this luminescence unit is adjacent to this incidence surface,
The light that this luminescence unit is launched enters this light guide plate via this incidence surface and is penetrated by this exiting surface.This is anti-
Penetrating sheet and be arranged at this subjacent, this reflector plate is in order to reflect this light penetrated by this bottom surface, this reflector plate
Size is more than this light guide plate size, and this reflector plate has reflector plate edge, and this reflector plate edge prolongs from this side
Stretch a prominent distance.This first adhesive layer is bonded between this bottom surface and this reflector plate, outside the first adhesive layer has
Side, and the outside of this first adhesive layer near and less than the side of light guide plate.This first fluid cured layer sets
Being placed at this reflector plate edge and this side neighbouring, this first fluid cured layer is in order to block this light via this
Side is penetrated, and this first fluid cured layer is flowable when its uncured state.Set in this first fluid cured layer
During putting this reflector plate edge and when being in this its uncured state, it is first-class that this first adhesive layer limits this
Body cured layer can flow into the scope between this reflector plate and this light guide plate, outside this first adhesive layer, this leaded light
Plate bottom surface and this reflector plate common definition go out the first infiltration space, this first fluid cured layer be partially into this
One penetrates into space.
According to backing structure of the present invention, the first adhesive layer has inner side, with this clear width outside this
One width, and this width is between 0.5 millimeter and 2 millimeters.
According to backing structure of the present invention, exiting surface has peripheral edge surface and central authorities output optical zone, Qi Zhongyu
During this first fluid cured layer arranges this reflector plate edge, tool is utilized to limit the solidification of this first fluid
Layer is only covered in this peripheral edge surface, without coating this central authorities output optical zone.
According to backing structure of the present invention, light guide plate has perforation, and this perforation has perforated side, and
This backing structure has additionally comprised second fluid cured layer, is coated with this perforated side.
Also including matte according to backing structure of the present invention, be arranged on this exiting surface, this matte has
Having at least one transparent area and light tight district, to limit the territory, output optical zone of this light guide plate, this light tight district covers
This first fluid cured layer and the intersection of this light guide plate.
According to backing structure of the present invention, light guide plate has light guide plate outer peripheral edge, and the first adhesive layer is along being somebody's turn to do
Light guide plate outer peripheral edge arranges continuously and defines inside region, when first fluid cured layer coats this light guide plate
During side, this first adhesive layer stops this first fluid cured layer, makes this first fluid cured layer cannot be introduced into
This inside region.
According to backing structure of the present invention, light guide plate has perforation, and this perforation has perforated side, should
Light guide plate forms light guide plate inner peripheral along the edge of this perforation, and this backing structure also includes the second bonding
Layer and second fluid cured layer；Second adhesive layer arranges continuously along this light guide plate inner peripheral and defines out side
Region；Second fluid cured layer is coated on this perforated side, when this second fluid cured layer coats this perforation
During side, this second adhesive layer stops this second fluid cured layer, makes this second fluid cured layer cannot be introduced into
This exterior lateral area.
According to backing structure of the present invention, first fluid cured layer arranges the processing procedure at reflector plate edge and is
Constituted selected from processing procedures such as ink-jet, dipping, slit, pouring curtain and printings and gathered one of them.
According to one of them embodiment of the present invention, the present invention separately discloses a kind of backlight being applicable to illuminated keyboard
Structure, it includes light guide plate, luminescence unit, matte, the first adhesive layer and first fluid cured layer.
This light guide plate has incidence surface, the bottom surface of exiting surface, relatively this exiting surface and side, and this luminescence unit is neighbouring
In this incidence surface, the light that this luminescence unit is launched enters this light guide plate via this incidence surface and is gone out light by this
Face is penetrated.This matte is arranged on this exiting surface, and this matte, should in order to limit the territory, output optical zone of this light guide plate
Matte size is more than this light guide plate size, and this matte has matte edge, and this matte edge extends from this side
A prominent distance.This first adhesive layer is bonded between this exiting surface and this matte, and the first adhesive layer has outside,
The outside of this first adhesive layer near and less than the side of light guide plate.This first fluid cured layer is arranged at this
At matte edge and adjacent side face, this first fluid cured layer penetrates via this side in order to block this light,
This first fluid cured layer is flowable when its uncured state.In this first fluid cured layer, this matte is set
During edge and when being in this its uncured state, this first adhesive layer limits this first fluid cured layer institute energy
Flow into the scope between this matte and this light guide plate, outside this first adhesive layer, this light guide plate exiting surface and this screening
Sheet common definition goes out the second infiltration space, and this first fluid cured layer is partially into this second infiltration space.
According to backing structure of the present invention, it is wide that the first adhesive layer has inner side, outside and clear width one
Degree, and this width is between 0.5 millimeter and 2 millimeters.
According to backing structure of the present invention, bottom surface has periphery bottom surface and central reflective district, wherein in this
In first fluid cured layer printing process, utilize tool to limit this first fluid cured layer and be only covered in this periphery
Bottom surface, without coating this central reflective district.
According to backing structure of the present invention, light guide plate has perforation, and this perforation has perforated side, and
This backing structure also includes second fluid cured layer, is coated with this perforated side.
According to backing structure of the present invention, it is choosing that first fluid cured layer arranges the processing procedure at matte edge
Constituted from processing procedures such as ink-jet, dipping, slit, pouring curtain and printings and gathered one of them.
Also include reflecting layer according to backing structure of the present invention, coat this bottom surface of this light guide plate,
This reflecting layer in order to reflect this light penetrated by this bottom surface, this first fluid cured layer cover this reflecting layer with
This light guide plate intersection, and extend to the bottom surface periphery in this reflecting layer.
According to backing structure of the present invention, light guide plate has light guide plate outer peripheral edge, and the first adhesive layer is along being somebody's turn to do
Light guide plate outer peripheral edge arranges continuously and defines inside region, when first fluid cured layer coats this light guide plate
During side, this first adhesive layer stops this first fluid cured layer, makes this first fluid cured layer cannot be introduced into
This inside region.
According to backing structure of the present invention, light guide plate has perforation, and this perforation has perforated side, should
Light guide plate forms light guide plate inner peripheral along the edge of this perforation, and this backing structure has additionally comprised the second bonding
Layer and second fluid cured layer；Second adhesive layer arranges continuously along this light guide plate inner peripheral and defines out side
Region；Second fluid cured layer is coated on this perforated side, when this second fluid cured layer coats this perforation
During side, this second adhesive layer stops this second fluid cured layer, makes this second fluid cured layer cannot be introduced into
This exterior lateral area.
In sum, the present invention may utilize reflector plate or matte as base material, and separately utilizes adhesive layer by leaded light
Plate is pasted on base material (i.e. reflector plate or matte), with provide fluid cured layer be arranged at light-guide edge or
Basis during hole edge on light guide plate, thereby fluid cured layer just can be arranged at light-guide edge or leaded light
Hole edge on plate, and then shut out the light and penetrated by hole edge on light-guide edge or light guide plate, and then
Reduce light hole edge on light-guide edge or light guide plate and form bright spot, thus improve backlight keyboard
Outward appearance.
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to graphic
In the detailed description of embodiment, can clearly present.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of first embodiment of the invention backlight keyboard.
Fig. 2 is the exploded perspective view of first embodiment of the invention backing structure.
Fig. 3 A is that backing structure shown in Fig. 2 is along the partial cutaway schematic view of hatching X-X.
Fig. 3 B is that backing structure shown in Fig. 2 is along the partial cutaway schematic view of hatching Y-Y.
Fig. 4 is the flow chart of the manufacture method of first embodiment of the invention backing structure.
Fig. 5 A is that the assembling vertical view of first embodiment of the invention backing structure correspondence step 100 and step 102 is shown
It is intended to.
Fig. 5 B is the assembling generalized section of backing structure shown in Fig. 5 A.
Fig. 6 A is the assembling schematic top plan view of first embodiment of the invention backing structure correspondence step 104.
Fig. 6 B is the assembling generalized section of backing structure shown in Fig. 6 A.
Fig. 7 A is the assembling schematic top plan view of first embodiment of the invention backing structure correspondence step 106.
Fig. 7 B is the assembling generalized section of backing structure shown in Fig. 7 A.
Fig. 8 A is the assembling schematic top plan view that first embodiment of the invention backing structure completes.
Fig. 8 B is the assembling generalized section of backing structure shown in Fig. 8 A.
Fig. 9 is the assembling section schematic top plan view that first embodiment of the invention backing structure is final.
Figure 10 is the generalized section of second embodiment of the invention backing structure.
Figure 11 is the generalized section of third embodiment of the invention backing structure.
Figure 12 is the flow chart of the manufacture method of third embodiment of the invention backing structure.
Figure 13 is that the assembling section of third embodiment of the invention backing structure correspondence step 300 and step 302 shows
It is intended to.
Figure 14 is the assembling generalized section of third embodiment of the invention backing structure correspondence step 304.
Figure 15 is the assembling generalized section of third embodiment of the invention backing structure correspondence step 306.
Figure 16 is the assembling generalized section that third embodiment of the invention backing structure completes.
Figure 17 is the generalized section of fourth embodiment of the invention backing structure.
Detailed description of the invention
The direction term being previously mentioned in following example, such as: upper and lower, left and right, front or rear etc., only
It it is the direction with reference to annexed drawings.Therefore, the direction term of use is used to illustrate not for limiting this
Bright.Refer to the schematic diagram of the backlight keyboard 3000 that Fig. 1, Fig. 1 are first embodiment of the invention.Such as Fig. 1
Shown in, backlight keyboard 3000 includes keypad portion 1 and backing structure 2, and keypad portion 1 is arranged at backlight knot
On structure 2, backing structure 2 is in order to provide keypad portion 1 light source, so that backlight keyboard 3000 produces regarding of luminescence
Feel effect.
Referring to Fig. 1, Fig. 2, Fig. 3 A and Fig. 3 B, Fig. 2 is first embodiment of the invention backing structure 2
Exploded perspective view, Fig. 3 A be backing structure 2 shown in Fig. 2 along the partial cutaway schematic view of hatching X-X,
Fig. 3 B is that backing structure 2 shown in Fig. 2 is along the partial cutaway schematic view of hatching Y-Y.As shown in Figure 1, Figure 2,
Shown in Fig. 3 A and Fig. 3 B, the keypad portion 1 of backlight keyboard 3000 include base plate 10 and a plurality of by
Key 11, a plurality of buttons 11 are arranged on base plate 10, press for user and then allow a user to hold
Row key-press input instructs, such as, input word, symbol or numeral etc..Further, backing structure 2 is arranged
Below base plate 10 and include light guide plate 20, luminescence unit 21, reflector plate 22, first fluid cured layer
23, the first adhesive layer 24, second fluid cured layer 25 and the second adhesive layer 26, light guide plate 20 have into
Bright finish 201, exiting surface 202, bottom surface 203 and side 204, the wherein relative exiting surface 202 in bottom surface 203.
Luminescence unit 21 adjacent to incidence surface 201, luminescence unit 21 in order to launch light L, and light guide plate 20 in order to
Guide the light L that luminescence unit 21 is launched, so that the light L that luminescence unit 21 is launched is via entering light
Face 201 can be penetrated by the exiting surface 202 of light guide plate 20 after entering light guide plate 20.
Consequently, it is possible to light L just can project towards the base plate 10 of keypad portion 1 with button 11, so that backlight
Keyboard 3000 produces the effect of luminescence.It addition, reflector plate 22 is arranged at below the bottom surface 203 of light guide plate 20.
In practice, when light guide plate 20 guide the light L that luminescence unit 21 launched penetrated by exiting surface 202 time,
The light L of a part can be penetrated by the bottom surface 203 of light guide plate 20, and reflector plate 22 just can be used to reflect by
The light L of bottom surface 203 injection to exiting surface 202, with light L is concentrated towards keypad portion 1 base plate 10 with
Button 11 projects, and then increases the illumination effect of backlight keyboard 3000.
In this embodiment, backing structure 2 can additionally comprise matte 27, and what it was arranged at light guide plate 20 goes out light
On face 202, that is matte 27 is between the light guide plate 20 and the base plate 10 of keypad portion 1 of backing structure 2,
And matte 27 has transparent area 271 and light tight district 272, transparent area 271 is available for being gone out light by light guide plate 20
The light L of face 202 injection passes through, and light tight district 272 can stop and penetrated by the exiting surface 202 of light guide plate 20
The light L gone out passes through.In other words, backing structure 2 may utilize the transparent area 271 of matte 27 with light tight
The structure design in district 272, makes light L be only capable of by the transparent area 271 on matte 27 and appears, use restriction and lead
The territory, output optical zone of tabula rasa 20.In practice, the transparent area 271 of backing structure 2 can corresponding keypad portion 1 each
The position of button 11, thereby backlight keyboard 3000 just can limit light L by button 11 by matte 27
Lower section is launched and is passed through, to reach desired illumination effect.
As shown in Figure 3A and 3B, first fluid cured layer 23 is arranged at the side 204 of light guide plate 20
And the side 204 of cladding light guide plate 20, wherein first fluid cured layer 23 is flowable when its uncured state.
When light guide plate 20 guide the light L that luminescence unit 21 launched penetrated by exiting surface 202 time, a part
Light L can be penetrated by the side 204 of light guide plate 20, and first fluid cured layer 23 just can be used to block light
Line L is penetrated by side 204, and then stops that light L penetrates in the side 204 of light guide plate 20, thus improves
The problem of light guide plate 20 side light leak.In this embodiment, first fluid cured layer 23 can be by impermeable gloss oil
Made by ink material, and first fluid cured layer 23 can be formed at light guide plate 20 in the way of ink printing
Side 204.And the material of first fluid cured layer 23 of the present invention can be not limited to described in this embodiment, such as
First fluid cured layer 23 also can be by made by semi-transparent ink material, as using the design of above-mentioned whichever, end
Depending on actual demand.
It is noted that the mode of first fluid cured layer 23 side 204 that is formed at light guide plate 20 can
It is not limited to the mode of ink printing.For example, first fluid cured layer 23 also may utilize industrial ink-jet
Machine is formed at the side 204 of light guide plate 20 in the way of ink-jet (inkjet printing)；Or by light guide plate 20
Uprightly, so that the surrounding of light guide plate 20 immerses in the pond that (dipping) is full of first fluid cured layer 23 respectively,
The most again light guide plate 20 is lain against on the first adhesive layer 24；Or utilize slit head to be coated with (slot with slit
Coating) mode is coated with first fluid cured layer 23 around the surrounding of light guide plate 20；Or utilize pouring curtain head
In the way of curtain (curtain coating), the surrounding around light guide plate 20 is coated with first fluid cured layer
23.In sum, first fluid cured layer 23 arrange the processing procedure at reflector plate 22 edge be selected from ink-jet,
The processing procedures such as dipping, slit, pouring curtain and printing are constituted gathers one of them.As for using the design of above-mentioned whichever,
Depending on actual demand.
Additionally, the first adhesive layer 24 is bonded between the bottom surface 203 of light guide plate 20 and reflector plate 22.Hold institute
Stating, the first adhesive layer 24 can be bonded in light guide plate 20 and reflector plate 22 and form barrier wall structure, therefore the
During one fluid cured layer 23 arranges reflector plate 22 edge and when being in this its uncured state, first glues
Conjunction layer 24 (i.e. this barrier wall structure) just may be used to limit first fluid cured layer 23 and can flow into reflector plate 22 and lead
Scope between tabula rasa 20, so that first fluid cured layer 23 is arranged at the reflector plate edge 221 of reflector plate 22
And be adjacent at the side 204 of light guide plate 20, that is the first adhesive layer 24 can prevent first fluid cured layer
23 excessively overflow into the scope between reflector plate 22 and light guide plate 20, and first fluid cured layer 23 is limited to neighbour
It is bordering on and does not cover the bottom surface 203 of light guide plate 20 at the side 204 of light guide plate 20.Consequently, it is possible to reflector plate
22 just can reflect the most light L penetrated by the bottom surface 203 of light guide plate 20, and then keep backing structure
The luminescent quality of 2.
It is noted that the exiting surface 202 of light guide plate 20 has peripheral edge surface 2021 and central authorities output optical zone
2022 (as shown in Figure 3 B), in the way of ink printing, it is formed at light guide plate 20 at first fluid cured layer 23
Side 204 during, available tool (not being illustrated in figure) limits first fluid cured layer 23 and only covers
It is placed on peripheral edge surface 2021, without coating central authorities output optical zone 2022.So, first fluid solidification
Layer 23 just will not block by the light L emitted by the central output optical zone 2022 of the exiting surface 202 of light guide plate 20.
In practice, this tool can be the net curtain (screen) that screen printing (screen printing) is conventional, but the present invention is not
Limited.
Further, the first adhesive layer 24 has outside 241, and the outside 241 of the first adhesive layer 24 is close
The side 204 of light guide plate 20.Additionally, the first adhesive layer 24 separately has inner side 242, the first adhesive layer 24
Outside 241 and inner side 242 can be spaced a width W.In this embodiment, width W can be 2 millimeters,
But the present invention is not limited.Additionally, the outside 241 of the first adhesive layer 24 can exceed the side of light guide plate 20
204, that is the projection that the side 204 of light guide plate 20 is on the first adhesive layer 24 is positioned at the first adhesive layer 24
Outside 241 and inner side 242 between (in the range of i.e. width W is contained).
In this embodiment, the shape of reflector plate 22 is essentially the same as the shape of light guide plate 20, and reflection
The size of sheet 22 is more than the size of light guide plate 20.It is to say, reflector plate 22 has reflector plate edge 221,
When reflector plate 22 is arranged at the bottom surface 203 times of light guide plate 20, reflector plate edge 221 is from light guide plate 20
Side 204 extends a prominent specific range D, to provide the Part I 231 of first fluid cured layer 23
Space on reflector plate 22.In practice, specific range D can be between 1.5 millimeters and 2 millimeters.
In this embodiment, what the Part II 232 of first fluid cured layer 23 can be covered in light guide plate 20 goes out light
In the peripheral edge surface 2021 in face 202, the thereby Part I 231 of first fluid cured layer 23, Part II
232 and connect the Part III 233 of Part I 231 and Part II 232 and just can jointly be coated with light guide plate
The side 204 of 20, to improve light L leakage problem at the side 204 of light guide plate 20.
As shown in Figure 3A, light guide plate 20 being formed with perforation 205, perforation 205 has perforated side 2051,
Second fluid cured layer 25 is coated on the perforated side 2051 of perforation 205.When second fluid cured layer 25 is coated with
When being distributed in the perforated side 2051 of perforation 205, the second adhesive layer 26 can limit second fluid cured layer 25 institute
Can enter into the scope between reflector plate 22 and light guide plate 20.Launched when light guide plate 20 guides luminescence unit 21
Light L when being penetrated by exiting surface 202, the light L of a part can wearing by the perforation 205 of light guide plate 20
Side, hole 2051 is penetrated, and second fluid cured layer 25 just can be used to shut out the light, L is by boring a hole 205 wear
Side, hole 2051 is penetrated, to reduce light L shape at the perforated side 2051 of the perforation 205 of light guide plate 20
Become bright spot, thus improve the outward appearance of backlight keyboard 3000.As for second fluid cured layer 25 and the second bonding
Structure configuration between layer 26, it is the structure being same as between first fluid cured layer 23 and the first adhesive layer 24
Configuration, for the sake of clarity, repeats no more in this.
Refer to the flow chart of the manufacture method that Fig. 4, Fig. 4 are first embodiment of the invention backing structure 2, its
Include the following step:
Step 100: prepare light guide plate 20.
Step 102: prepare reflector plate 22.
Step 104: use the first adhesive layer 24 and the second adhesive layer 26 that light guide plate 20 is bonded in reflector plate
On 22, wherein reflector plate edge 221 extends prominent specific range D from side 204.
Step 106: first fluid is set at the side 204 of reflector plate edge 221 and neighbouring light guide plate 20
Cured layer 23, and in perforation 205 perforated side 2051 second fluid cured layer 25 is set.
Manufacture method below for backing structure 2 is described in detail, see also Fig. 5 A, Fig. 5 B,
Fig. 6 A, Fig. 6 B, Fig. 7 A, Fig. 7 B, Fig. 8 A, Fig. 8 B and Fig. 9, Fig. 5 A is that the present invention first is real
Executing the corresponding step 100 of example backing structure 2 and the assembling schematic top plan view of step 102, Fig. 5 B is Fig. 5 A institute
Showing the assembling generalized section of backing structure 2, Fig. 6 A is the corresponding step of first embodiment of the invention backing structure 2
The assembling schematic top plan view of rapid 104, Fig. 6 B is the assembling generalized section of backing structure 2 shown in Fig. 6 A,
Fig. 7 A is the assembling schematic top plan view of the corresponding step 106 of first embodiment of the invention backing structure 2, Fig. 7 B
For the assembling generalized section of backing structure 2 shown in Fig. 7 A, Fig. 8 A is first embodiment of the invention backlight knot
The assembling schematic top plan view that structure 2 completes, Fig. 8 B is the assembling generalized section of backing structure 2 shown in Fig. 8 A,
Fig. 9 is the assembling generalized section that first embodiment of the invention backing structure 2 is final.
As shown in Figure 5A and 5B, reflector plate 22 and light guide plate 20 (step 100 and step can first be prepared
102), wherein light guide plate 20 have light guide plate outer peripheral edge 206 and along perforation 205 edge formed lead
Tabula rasa inner peripheral 207.As shown in Figure 6A and 6B, by the first adhesive layer 24 along light guide plate outer peripheral edge 206
Arrange continuously, and the second adhesive layer 26 is arranged continuously along light guide plate inner peripheral 207, thereby light guide plate 20
Inside region 208 can be defined by the first adhesive layer 24 and be defined exterior lateral area by the second adhesive layer 26
209, then can use the first adhesive layer 24 and the second adhesive layer 26 that light guide plate 20 is bonded in reflector plate 22
Upper (comparison step 104).It is noted that owing to the size of reflector plate 22 is more than the size of light guide plate 20,
Therefore when light guide plate 20 is bonded on reflector plate 22, the reflector plate edge 221 of reflector plate 22 can be from light guide plate
The side 204 of 20 extends a prominent specific range D'.In practice, specific range D' can be 7 millimeters, but
The present invention is not limited.
As shown in Figure 7A and 7B, in the reflector plate edge 221 of reflector plate 22 and neighbouring light guide plate 20
Side 204 first fluid cured layer 23 is set, so that first fluid cured layer 23 coats light guide plate periphery
Edge 206, and in perforation 205 perforated side 2051 second fluid cured layer 25 (step 106) is set so that
Second fluid cured layer 25 coats light guide plate inner peripheral 207.It is noted that when first fluid solidifies
During layer 23 is arranged at light guide plate outer peripheral edge 206 and when being in this its uncured state, the first adhesive layer 24
Just can be used to stop first fluid cured layer 23, make first fluid cured layer 23 be limited in inside region 208
Outward.On the other hand, during second fluid cured layer 25 is arranged at light guide plate inner peripheral 207 and be in
During this its uncured state, the second adhesive layer 26 just can be used to stop second fluid cured layer 25, makes second fluid
Cured layer 25 is limited in outside exterior lateral area 209.
As shown in Figure 8A and 8B, the side 204 at light guide plate 20 arranges first fluid cured layer 23
And perforation 205 edge second fluid cured layer 25 is set after, can to first fluid cured layer 23 with
And second fluid cured layer 25 toasts, use solidification first fluid cured layer 23 and second fluid is solid
Change layer 25.After first fluid cured layer 23 and second fluid cured layer 25 solidify, can be again by reflector plate
22 cut molding with light guide plate 20, remove part first fluid cured layer 23 and second fluid cured layer 25,
So that perforation 205 holding runs through without being blocked by second fluid cured layer 25.The most again by matte 27
Be pasted on light guide plate 20, and the light tight district 272 (diagonal line pattern region) of matte 27 cover this first
Fluid cured layer 23 and the intersection (as shown in Figure 9) of this light guide plate 20, finally arranged luminescence unit 21
In the side of light guide plate 20 and the incidence surface 201 (as shown in Figure 3) of neighbouring light guide plate 20.Consequently, it is possible to just
The assembling of backing structure 2 can be completed.
Refer to the generalized section of the backing structure 2' that Figure 10, Figure 10 are second embodiment of the invention.Such as figure
Shown in 10, backing structure 2' is at the main difference of above-mentioned backing structure 2, the of backing structure 2'
The outside 241' of one adhesive layer 24' is less than the side 204 of light guide plate 20, that is in this embodiment, first
The outside 241' and inner side 242' of adhesive layer 24' can separate a width W', and wherein width W' can be 0.5 millimeter,
And first the outside 241' of adhesive layer 24' less than the side 204 of light guide plate 20, that is the side of light guide plate 20
The face 204 projection on the first adhesive layer 24' be positioned at scope that the width W' of the first adhesive layer 24 contained it
Outward.From the above, owing to the outside 241' of the first adhesive layer 24' is less than the side 204 of light guide plate 20, because of
This is when the first adhesive layer 24' bonds light guide plate 20 with reflector plate 22, the outside 241' of the first adhesive layer 24',
Light guide plate 20 and reflector plate 22 can go out the first infiltration space S 1 by common definition, and first fluid cured layer 23
Part I 231 can enter the first infiltration space S 1 in setting up procedure.And this embodiment and above-mentioned enforcement
Having the element of identical label in example, it has identical structure and designs and action principle, for the sake of clarity, in
This repeats no more.
Refer to the backing structure 2 that Figure 11, Figure 11 are third embodiment of the invention " generalized section.Such as figure
Shown in 11, backing structure 2 " be at the main difference of above-mentioned backing structure 2, backing structure 2 " do not have
Having reflector plate 22 but include reflecting layer 28, the bottom surface 203 of light guide plate 20 is coated in reflecting layer 28, instead
Penetrating layer 28 in order to reflect the light L penetrated by bottom surface 203, first fluid cured layer 23 covers reflecting layer 28
With light guide plate 20 intersection, and first fluid cured layer 23 downwardly extend cover reflecting layer 28 bottom surface periphery,
And the present invention is used for reflecting the structure of light can be not limited to this embodiment graphic depicted, that is backing structure
2 " being selectively included reflector plate 22 or reflecting layer 28, as using the design of above-mentioned whichever, end regards reality and needs
Depending on asking.It addition, backing structure 2 " the first adhesive layer 24 be bonded in light guide plate 20 exiting surface 202 with
Between matte 27.In other words, backing structure 2 " not there are reflector plate structure, therefore backing structure 2 " leaded light
Plate 20 is to be bonded on matte 27, and the configuration of its structure is bonded in the light guide plate 20 of above-mentioned backing structure 2
The structure of reflector plate 22 is differently configured.In this embodiment, the size of matte 27 is more than the chi of light guide plate 20
Very little, and matte 27 has matte edge 273, when the first adhesive layer 24 is bonded in light guide plate 20 and matte 27
Time, matte edge 273 extends a prominent specific range D from side 204 ".
From the above, backing structure 2 " the first adhesive layer 24 can be bonded in light guide plate 20 and matte 27 and shape
Become barrier wall structure, be therefore arranged at the side 204 of light guide plate 20 at first fluid cured layer 23 during
And when being in this its uncured state, it is solid that the first adhesive layer 24 (i.e. this barrier wall structure) just may be used to limit first fluid
Change layer 23 and can enter the scope between matte 27 and light guide plate 20, so that first fluid cured layer 23 is arranged
In the matte edge 273 of matte 27 and be adjacent at the side 204 of light guide plate 20, that is the first adhesive layer
24 can prevent first fluid cured layer 23 from excessively overflowing into the scope between matte 27 and light guide plate 20, and by first
What fluid cured layer 23 was limited to be adjacent at the side 204 of light guide plate 20 not cover light guide plate 20 goes out light
Face 202, so that the exiting surface 202 energy transmission most light L of light guide plate 20, and then keep backlight knot
Structure 2 " luminescent quality.
It is noted that the bottom surface 203 of light guide plate 20 has periphery bottom surface 2031 and central reflective district
2032 (as shown in figure 11), in the setting up procedure of first fluid cured layer 23, available tool (does not illustrates
In figure) limit first fluid cured layer 23 and be only covered in periphery bottom surface 2031, anti-without coating central authorities
Penetrate district 2032.So, first fluid cured layer 23 just will not block by the bottom surface 203 of light guide plate 20
Central reflective district 2032 so that most light L can be reflected in reflector plate 22 or reflecting layer 28.Yu Shi
In business, this tool can be network, but the present invention is not limited.
It is noted that backing structure 2 " the outside 241 of the first adhesive layer 24 can have with inner side 242
One width W ", wherein width W " can be 2 millimeters, and the outside 241 of the first adhesive layer 24 can exceed leaded light
The side 204 of plate 20, that is the projection that the side 204 of light guide plate 20 is on the first adhesive layer 24 is in
The width W of the first adhesive layer 24 " in the range of (i.e. 2 millimeters) contained.And this embodiment and above-mentioned enforcement
Having the element of identical label in example, it has identical structure and designs and action principle, for the sake of clarity, in
This repeats no more.
Referring to Figure 12, Figure 12 is third embodiment of the invention backing structure 2 " the flow chart of manufacture method,
It includes the following step:
Step 300: prepare light guide plate 20.
Step 302: prepare matte 27.
Step 304: use the first adhesive layer 24 and the second adhesive layer 26 that light guide plate 20 is bonded in matte 27
On, wherein matte edge 273 extends prominent specific range D from side 204 ".
Step 306: first fluid is set at the side 204 of matte edge 273 and neighbouring light guide plate 20 solid
Change layer 23, and in perforation 205 perforated side 2051 second fluid cured layer 25 is set.
Below for backing structure 2 " manufacture method be described in detail, see also Figure 13 to Figure 16,
Figure 13 is third embodiment of the invention backing structure 2 " corresponding step 300 and the assembling section signal of step 302
Figure, Figure 14 is third embodiment of the invention backing structure 2 " the assembling generalized section of corresponding step 304, figure
15 is third embodiment of the invention backing structure 2 " the assembling generalized section of corresponding step 306, Figure 16 be
Invent the 3rd embodiment backing structure 2 " the assembling generalized section that completes.
As shown in figure 13, matte 27 and light guide plate 20 (step 300 and step 302) can first be prepared.Such as Figure 14
Shown in, use the first adhesive layer 24 and the second adhesive layer 26 to be bonded on matte 27 by light guide plate 20 and (compare
Step 304).As shown in figure 15, in the side 204 of (1) light guide plate 20, (2) reflecting layer 28 and light guide plate 20
Intersection, the outer peripheral edge, bottom surface in (3) reflecting layer 28 arranges first fluid cured layer 23, and in the limit of perforation 205
Edge arranges second fluid cured layer 25 (comparison step 306).As shown in figure 16, in the side 204 of light guide plate 20
First fluid cured layer 23 is set and after the edge of perforation 205 arranges second fluid cured layer 25, can
First fluid cured layer 23 and second fluid cured layer 25 are toasted, uses solidification first fluid solid
Change layer 23 and second fluid cured layer 25.When first fluid cured layer 23 and second fluid cured layer 25
After solidification, again reflecting layer 28 and light guide plate 20 can be cut molding, remove unnecessary first fluid cured layer 23
With second fluid cured layer 25, luminescence unit 21 is arranged at the side of light guide plate 20 the most again and adjacent to leading
The incidence surface 201 (as shown in figure 11) of tabula rasa 20.Consequently, it is possible to backing structure 2 just can be completed " assembling.
Referring to Figure 17, Figure 17 is fourth embodiment of the invention one backing structure 2 " ' generalized section.As
Shown in Figure 17, backing structure 2 " ' with above-mentioned backing structure 2 " main difference at be, backing structure 2 " '
The first adhesive layer 24 " outside 241 " less than the side 204 of light guide plate 20, that is in this embodiment,
First adhesive layer 24 " outside 241 " with inner side 242 " a width W can be separated " ', wherein width W " ' can be 0.5
Millimeter, and the first adhesive layer 24 " outside 241 " less than the side 204 of light guide plate 20, that is light guide plate
The side 204 of 20 is at the first adhesive layer 24 " on projection be positioned at the width W of the first adhesive layer 24 " ' contained
Scope outside.From the above, due to the first adhesive layer 24 " outside 241 " less than the side of light guide plate 20
Face 204, therefore when the first adhesive layer 24 " bonding light guide plate 20 with reflector plate 22 time, the first adhesive layer 24 "
Outside 241 ", light guide plate 20 can go out the second infiltration space S 2 by common definition with reflector plate 22, and first-class
The Part II 232 of body cured layer 23 can enter the second infiltration space S 2 in setting up procedure.It is worth mentioning
It is, backing structure 2 in this embodiment " ' comprise reflector plate 22, and the structure that the present invention is used for reflecting light can
It is not limited to this embodiment graphic depicted, that is backing structure 2 " ' it is selectively included reflector plate 22 or anti-
Penetrating layer 28, as using the design of above-mentioned whichever, end is depending on actual demand.And this embodiment and above-mentioned enforcement
Having the element of identical label in example, it has identical structure and designs and action principle, for the sake of clarity, in
This repeats no more.
Compared to prior art, the present invention may utilize reflector plate or matte as base material, and separately utilizes adhesive layer
Light guide plate is pasted on base material (i.e. reflector plate or matte), to provide fluid cured layer in being arranged at guide-lighting edges of boards
Basis during hole edge on edge or light guide plate, thereby fluid cured layer just can be arranged at light-guide edge or
It is hole edge on light guide plate, and then shuts out the light and penetrated by hole edge on light-guide edge or light guide plate,
Thus improve light guide plate side or the problem of hole light leak.The foregoing is only presently preferred embodiments of the present invention,
All impartial changes done according to the present invention and modification, all should belong to the scope of patent protection of the present invention.
Claims (11)
1. the backing structure being applicable to illuminated keyboard, it is characterised in that this backing structure includes:
Light guide plate, has the bottom surface of incidence surface, exiting surface, side and this exiting surface relatively；
Luminescence unit, is adjacent to this incidence surface, and the light that this luminescence unit is launched enters via this incidence surface
This light guide plate and being penetrated by this exiting surface；
Reflector plate, is arranged at this subjacent, this reflector plate in order to reflect this light penetrated by this bottom surface,
This reflector plate size is more than this light guide plate size, and this reflector plate has reflector plate edge, and this reflector plate edge is certainly
This side extends a prominent distance；
First adhesive layer, is bonded between this bottom surface and this reflector plate, and this first adhesive layer has outside, and this is the years old
Outside this of one adhesive layer near and less than this side of this light guide plate；And
First fluid cured layer, is arranged at this reflector plate edge and this side neighbouring, and this first fluid solidifies
Layer penetrates via this side in order to block this light, and this first fluid cured layer can flow when its uncured state
Dynamic；
Wherein during this first fluid cured layer arranges this reflector plate edge and be in this uncured shape
During state, this first adhesive layer limits this first fluid cured layer and can flow between this reflector plate and this light guide plate
Scope, the outside of this first adhesive layer, bottom surface and this reflector plate common definition of this light guide plate go out the first infiltration
Space, this first fluid cured layer is partially into this first infiltration space.
2. backing structure as claimed in claim 1, it is characterised in that this exiting surface have peripheral edge surface with in
Output optical zone, centre, wherein during this first fluid cured layer arranges this reflector plate edge, utilizes tool to limit
Make this first fluid cured layer and be only covered in this peripheral edge surface, without coating this central authorities output optical zone.
3. backing structure as claimed in claim 1, it is characterised in that also include:
Matte, is arranged on this exiting surface, and this matte has at least one transparent area and light tight district, to limit
The territory, output optical zone of this light guide plate, this light tight district covers the boundary of this first fluid cured layer and this light guide plate
Place.
4. backing structure as claimed in claim 1, it is characterised in that this first fluid cured layer arranges this
The processing procedure at reflector plate edge is to be constituted set wherein selected from ink-jet, dipping, slit, pouring curtain with printing process
One of.
5. the backing structure being applicable to illuminated keyboard, it is characterised in that this backing structure includes:
Light guide plate, has the bottom surface of incidence surface, exiting surface, side and this exiting surface relatively；
Luminescence unit, is adjacent to this incidence surface, and the light that this luminescence unit is launched enters via this incidence surface
This light guide plate and being penetrated by this exiting surface；
Matte, is arranged on this exiting surface, and this matte is in order to limit the territory, output optical zone of this light guide plate, this matte
Size is more than this light guide plate size, and this matte has matte edge, and this matte edge extends prominent from this side
One distance；
First adhesive layer, is bonded between this exiting surface and this matte, and this first adhesive layer has outside, and this is the years old
Outside this of one adhesive layer near and less than this side of this light guide plate；And
First fluid cured layer, is arranged at this matte edge and adjacent side face, and this first fluid cured layer is used
Penetrating via this side blocking this light, this first fluid cured layer is flowable when its uncured state；
Wherein during this first fluid cured layer arranges this matte edge and be in this its uncured state
Time, this first adhesive layer limits this first fluid cured layer can flow into the model between this matte and this light guide plate
Enclosing, the outside of this first adhesive layer, exiting surface and this matte common definition of this light guide plate go out the second infiltration sky
Between, this first fluid cured layer is partially into this second infiltration space.
6. backing structure as claimed in claim 5, it is characterised in that this bottom surface has periphery bottom surface and central authorities
Echo area, wherein in this first fluid cured layer setting up procedure, utilizes tool to limit the solidification of this first fluid
Layer is only covered in this periphery bottom surface, without coating this central reflective district.
7. backing structure as claimed in claim 5, it is characterised in that this first fluid cured layer arranges this
The processing procedure at matte edge be constituted selected from ink-jet, dipping, slit, pouring curtain and printing process gather wherein it
One.
8. backing structure as claimed in claim 5, it is characterised in that also include:
Reflecting layer, coats this bottom surface of this light guide plate, and this reflecting layer is in order to reflect by being somebody's turn to do that this bottom surface is penetrated
Light, this first fluid cured layer covers this reflecting layer and this light guide plate intersection, and extends to this reflecting layer
Bottom surface periphery.
9. the backing structure as described in claim 1 or 5, it is characterised in that this light guide plate has outside light guide plate
Periphery, this first adhesive layer arranges continuously along this light guide plate outer peripheral edge and defines inside region, when this first
When fluid cured layer coats this light guide plate side, this first adhesive layer stops this first fluid cured layer, makes
This first fluid cured layer cannot be introduced into this inside region.
10. the backing structure as described in claim 1 or 5, it is characterised in that this first adhesive layer has inner side,
With this clear width one width outside this, and this width is between 0.5 millimeter and 2 millimeters.
11. backing structures as described in claim 1 or 5, it is characterised in that this light guide plate has perforation, should
Perforation has perforated side, and this backing structure also includes: second fluid cured layer, is coated with this perforation side
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569525.6A CN106024476B (en) | 2014-07-31 | 2014-07-31 | A kind of backing structure suitable for illuminated keyboard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569525.6A CN106024476B (en) | 2014-07-31 | 2014-07-31 | A kind of backing structure suitable for illuminated keyboard |
| CN201410374191.8A CN104217883B (en) | 2014-06-09 | 2014-07-31 | A kind of backing structure being applicable to illuminated keyboard and manufacture method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374191.8A Division CN104217883B (en) | 2014-06-09 | 2014-07-31 | A kind of backing structure being applicable to illuminated keyboard and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106024476A true CN106024476A (en) | 2016-10-12 |
| CN106024476B CN106024476B (en) | 2018-07-06 |
Family
ID=57122995
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610569525.6A Active CN106024476B (en) | 2014-07-31 | 2014-07-31 | A kind of backing structure suitable for illuminated keyboard |
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| Country | Link |
|---|---|
| CN (1) | CN106024476B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786161A (en) * | 2017-11-15 | 2019-05-21 | 致伸科技股份有限公司 | Illuminated keyboard |
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| CN201364844Y (en) * | 2009-02-13 | 2009-12-16 | 苏州达方电子有限公司 | Illuminating keyboard |
| CN102155692A (en) * | 2011-04-13 | 2011-08-17 | 苏州向隆塑胶有限公司 | Backlight module and assembling method thereof |
| CN102194594A (en) * | 2010-03-09 | 2011-09-21 | 阿尔卑斯电气株式会社 | Thin plate with contact spring and switch device |
| TWM440469U (en) * | 2012-04-12 | 2012-11-01 | Ri-Chuan Zhang | Marginal beam modulation device for keyboard backlight unit |
| CN202521385U (en) * | 2012-01-18 | 2012-11-07 | 苏州达方电子有限公司 | Backlight module and light-emitting keyboard |
| CN202871650U (en) * | 2012-10-23 | 2013-04-10 | 苏州达方电子有限公司 | Thin type luminescent keyboard |
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2014
- 2014-07-31 CN CN201610569525.6A patent/CN106024476B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201364844Y (en) * | 2009-02-13 | 2009-12-16 | 苏州达方电子有限公司 | Illuminating keyboard |
| CN102194594A (en) * | 2010-03-09 | 2011-09-21 | 阿尔卑斯电气株式会社 | Thin plate with contact spring and switch device |
| CN102155692A (en) * | 2011-04-13 | 2011-08-17 | 苏州向隆塑胶有限公司 | Backlight module and assembling method thereof |
| CN202521385U (en) * | 2012-01-18 | 2012-11-07 | 苏州达方电子有限公司 | Backlight module and light-emitting keyboard |
| TWM440469U (en) * | 2012-04-12 | 2012-11-01 | Ri-Chuan Zhang | Marginal beam modulation device for keyboard backlight unit |
| CN202871650U (en) * | 2012-10-23 | 2013-04-10 | 苏州达方电子有限公司 | Thin type luminescent keyboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786161A (en) * | 2017-11-15 | 2019-05-21 | 致伸科技股份有限公司 | Illuminated keyboard |
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| Publication number | Publication date |
|---|---|
| CN106024476B (en) | 2018-07-06 |
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