CN106024476B - A kind of backing structure suitable for illuminated keyboard - Google Patents
A kind of backing structure suitable for illuminated keyboard Download PDFInfo
- Publication number
- CN106024476B CN106024476B CN201610569525.6A CN201610569525A CN106024476B CN 106024476 B CN106024476 B CN 106024476B CN 201610569525 A CN201610569525 A CN 201610569525A CN 106024476 B CN106024476 B CN 106024476B
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- China
- Prior art keywords
- light
- guide plate
- light guide
- cured layer
- fluid cured
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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 kind of backing structure includes light guide plate, luminescence unit, reflector plate, fluid cured layer and adhesive layer.The light guide plate has the bottom surface and side of incidence surface, light-emitting surface, the opposite light-emitting surface, which is adjacent to the incidence surface, and the light which is emitted enters the light guide plate via the incidence surface and projected by the light-emitting surface.The reflector plate is set to the subjacent, to reflect the light projected by the bottom surface.The fluid cured layer is set to the side, is projected to block the light via the side.The adhesive layer is bonded between the light guide plate and the reflector plate, can enter range between the reflector plate and the light guide plate during setting to the reflector plate edge to limit the fluid cured layer.
Description
The application is the applying date on July 31st, 2014, application No. is 201410374191.8, it is entitled《It is a kind of
Suitable for the backing structure and its manufacturing method of illuminated keyboard》Application for a patent for invention divisional application.
Technical field
The present invention is about a kind of backing structure, espespecially a kind of backing structure for preventing edge light leakage.
Background technology
For the use habit of current PC, keyboard is one of indispensable input equipment, to input text
Word, symbol or number.Recently, with the promotion of consumer's vision, it is new that a kind of backlight keyboard to shine becomes industry then
Developing direction.In general, backlight keyboard uses sidelight type backlight module, as its light source, will also be used for shining shines
Diode is set to the side of the incidence surface of its light guide plate, and the light that thereby light-emitting diode is sent out can be entered by incidence surface
Light guide plate is simultaneously projected by the light-emitting surface of light guide plate, so that light transmits bottom plate and keyboard is made to generate luminous effect.However, into
The light of light guide plate can also be projected by the other edge of light guide plate so that the other edge of light guide plate forms bright spot and influences backlight
The appearance of keyboard.
Invention content
Therefore, the present invention provides a kind of backing structure for preventing edge light leakage, to solve the above problems.
In order to achieve the above objectives, the invention discloses a kind of backing structure suitable for illuminated keyboard, include light guide plate,
Luminescence unit, reflector plate, the first adhesive layer and first fluid cured layer.The light guide plate has incidence surface, light-emitting surface, relatively should
The bottom surface and side of light-emitting surface, the luminescence unit are adjacent to the incidence surface, and the light which is emitted enters light via this
Face enters the light guide plate and is projected by the light-emitting surface.The reflector plate is set to the subjacent, and the reflector plate is reflecting by this
The light that bottom surface is projected, the reflection chip size are more than the leaded light board size, which has reflector plate edge, the reflector plate
Edge extends a prominent distance from the side.First adhesive layer is bonded between the bottom surface and the reflector plate, the first adhesive layer tool
Have outside, and first adhesive layer outside close to and no more than light guide plate side.The first fluid cured layer is set to this
At reflector plate edge and the neighbouring side, which projects to block the light via the side, this first
Fluid cured layer is flowable when uncured state.During first fluid cured layer setting to the reflector plate edge and locate
When the uncured state, which limits the first fluid cured layer and can flow between the reflector plate and the light guide plate
Range, on the outside of first adhesive layer, the bottom surface of light guide plate and the reflector plate common definition go out the first infiltration space, this is first-class
Body curing layer segment enters the first infiltration space.
Backing structure according to the present invention, the first adhesive layer have inside, and the outside and the inside are spaced a width,
And the width is between 0.5 millimeter and 2 millimeters.
Backing structure according to the present invention, light-emitting surface have peripheral edge surface and central output optical zone, wherein in this first
During the setting to the reflector plate edge of fluid cured layer, limit the first fluid cured layer using jig and be only covered in the periphery
Surface, without being coated on the center output optical zone.
Backing structure according to the present invention, light guide plate have perforation, which has perforated side, and the backlight knot
Structure has additionally comprised second fluid cured layer, coats the perforated side.
Backing structure according to the present invention also includes matte, is set on the light-emitting surface, which has at least
One transparent area and light tight area, to limit the light extraction region of the light guide plate, which covers the first fluid cured layer
With the intersection of the light guide plate.
Backing structure according to the present invention, light guide plate have light guide plate outer peripheral edge, and the first adhesive layer is along the light guide plate
Outer peripheral edge continuously setting and define inside region, when first fluid cured layer is coated on the light guide plate side, this is first viscous
It closes layer and stops the first fluid cured layer, the first fluid cured layer is made to cannot be introduced into the inside region.
Backing structure according to the present invention, light guide plate have perforation, which has perforated side, the light guide plate edge
The edge for the perforation forms light guide plate inner peripheral, and the backing structure also includes the second adhesive layer and second fluid curing
Layer；Second adhesive layer continuously sets along the light guide plate inner peripheral and defines side region of going out；Second fluid cured layer is coated on this
Perforated side, when the second fluid cured layer is coated on the perforated side, which stops that the second fluid cures
Layer, makes the second fluid cured layer cannot be introduced into the lateral area.
Backing structure according to the present invention, processing procedure of the first fluid cured layer setting to reflector plate edge is selected from spray
Ink, dipping, slit, leaching curtain and the processing procedures such as printing form one of set.
According to one of them embodiment of the present invention, the present invention separately discloses a kind of backing structure suitable for illuminated keyboard,
It includes have light guide plate, luminescence unit, matte, the first adhesive layer and first fluid cured layer.The light guide plate have incidence surface,
The bottom surface and side of light-emitting surface, the opposite light-emitting surface, the luminescence unit are adjacent to the incidence surface, the light which is emitted
Line enters the light guide plate via the incidence surface and is projected by the light-emitting surface.The matte is set on the light-emitting surface, the matte to
The light extraction region of the light guide plate is limited, which is more than the leaded light board size, which has matte edge, the matte side
Originate from the prominent distance of side extension.First adhesive layer is bonded between the light-emitting surface and the matte, and the first adhesive layer has
Outside, the outside of first adhesive layer is close and is no more than the side of light guide plate.The first fluid cured layer is set to the matte
At edge and adjacent side face, which projects to block the light via the side, first fluid curing
Layer is flowable when uncured state.It is during first fluid cured layer setting to the matte edge and uncured in this
During state, which, which limits the first fluid cured layer, can flow into range between the matte and the light guide plate, this
One adhesive layer outside, the light guide plate light-emitting surface and the matte common definition go out the second infiltration space, the first fluid cured layer portion
Divide and enter the second infiltration space.
Backing structure according to the present invention, the first adhesive layer has inside, one width of outside and inside interval, and is somebody's turn to do
Width is between 0.5 millimeter and 2 millimeters.
Backing structure according to the present invention, bottom surface has periphery bottom surface and central reflective area, wherein first-class in this
In body cured layer printing process, limit the first fluid cured layer using jig and be only covered in the periphery bottom surface, without being coated with
In the central reflective area.
Backing structure according to the present invention, light guide plate have perforation, which has perforated side, and the backlight knot
Structure also includes second fluid cured layer, coats the perforated side.
Backing structure according to the present invention, processing procedure of the first fluid cured layer setting to matte edge is selected from spray
Ink, dipping, slit, leaching curtain and the processing procedures such as printing form one of set.
Backing structure according to the present invention also includes reflecting layer, is coated on the bottom surface of the light guide plate, the reflection
For layer to reflect the light projected by the bottom surface, which covers the reflecting layer and the light guide plate intersection,
And extend to the bottom surface periphery in the reflecting layer.
Backing structure according to the present invention, light guide plate have light guide plate outer peripheral edge, and the first adhesive layer is along the light guide plate
Outer peripheral edge continuously setting and define inside region, when first fluid cured layer is coated on the light guide plate side, this is first viscous
It closes layer and stops the first fluid cured layer, the first fluid cured layer is made to cannot be introduced into the inside region.
Backing structure according to the present invention, light guide plate have perforation, which has perforated side, the light guide plate edge
The edge for the perforation forms light guide plate inner peripheral, and the backing structure has additionally comprised the second adhesive layer and second fluid curing
Layer；Second adhesive layer continuously sets along the light guide plate inner peripheral and defines side region of going out；Second fluid cured layer is coated on this
Perforated side, when the second fluid cured layer is coated on the perforated side, which stops that the second fluid cures
Layer, makes the second fluid cured layer cannot be introduced into the lateral area.
In conclusion the present invention can be by the use of reflector plate or matte as base material, and separately light guide plate is pasted using adhesive layer
In on base material (i.e. reflector plate or matte), to provide fluid cured layer hole side on light-guide edge or light guide plate is set to
Basis during edge, thereby fluid cured layer just can be set to hole edge on light-guide edge or light guide plate, and then shielding light
Line is projected by hole edge on light-guide edge or light guide plate, and then reduces light in hole on light-guide edge or light guide plate
Hole edge forms bright spot, so as to improve the appearance of backlight keyboard.
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to the embodiment of schema
Detailed description in, can clearly present.
Description of the drawings
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 are partial cutaway schematic view of the backing structure along hatching X-X shown in Fig. 2.
Fig. 3 B are partial cutaway schematic view of the backing structure along hatching Y-Y shown in Fig. 2.
Fig. 4 is the flow chart of the manufacturing method of first embodiment of the invention backing structure.
Fig. 5 A are the assembling schematic top plan view that first embodiment of the invention backing structure corresponds to step 100 and step 102.
Fig. 5 B are the assembling diagrammatic cross-section of backing structure shown in Fig. 5 A.
Fig. 6 A are the assembling schematic top plan view that first embodiment of the invention backing structure corresponds to step 104.
Fig. 6 B are the assembling diagrammatic cross-section of backing structure shown in Fig. 6 A.
Fig. 7 A are the assembling schematic top plan view that first embodiment of the invention backing structure corresponds to step 106.
Fig. 7 B are the assembling diagrammatic cross-section of backing structure shown in Fig. 7 A.
Fig. 8 A are the assembling schematic top plan view that first embodiment of the invention backing structure is completed.
Fig. 8 B are the assembling diagrammatic cross-section of backing structure shown in Fig. 8 A.
Fig. 9 is the final assembling section schematic top plan view of first embodiment of the invention backing structure.
Figure 10 is the diagrammatic cross-section of second embodiment of the invention backing structure.
Figure 11 is the diagrammatic cross-section of third embodiment of the invention backing structure.
Figure 12 is the flow chart of the manufacturing method of third embodiment of the invention backing structure.
Figure 13 is the assembling diagrammatic cross-section that third embodiment of the invention backing structure corresponds to step 300 and step 302.
Figure 14 is the assembling diagrammatic cross-section that third embodiment of the invention backing structure corresponds to step 304.
Figure 15 is the assembling diagrammatic cross-section that third embodiment of the invention backing structure corresponds to step 306.
Figure 16 is the assembling diagrammatic cross-section that third embodiment of the invention backing structure is completed.
Figure 17 is the diagrammatic cross-section of fourth embodiment of the invention backing structure.
Specific embodiment
The direction term being previously mentioned in following embodiment, such as：Upper and lower, left and right, front or rear etc. are only with reference to appended drawings
The direction of formula.Therefore, the direction term used is intended to be illustrative and not intended to limit the present invention.Referring to Fig. 1, Fig. 1 is this hair
The schematic diagram of the backlight keyboard 3000 of bright first embodiment.As shown in Figure 1, backlight keyboard 3000 includes keypad portion 1 and the back of the body
Photo structure 2, keypad portion 1 are set on backing structure 2, and backing structure 2 is to provide keypad portion 1 light source, so that backlight keyboard
3000 generate luminous visual effect.
It please refers to Fig.1, Fig. 2, Fig. 3 A and Fig. 3 B, Fig. 2 illustrate for the explosion of first embodiment of the invention backing structure 2
Figure, Fig. 3 A are partial cutaway schematic view of the backing structure 2 along hatching X-X shown in Fig. 2, and Fig. 3 B are 2 edge of backing structure shown in Fig. 2
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 is wrapped
Containing bottom plate 10 and a plurality of buttons 11, a plurality of buttons 11 are arranged on bottom plate 10, so that user presses and then makes
User can perform key-press input instruction, such as input word, symbol or number etc..Further, backing structure 2 is set to bottom
The lower section of plate 10 and include light guide plate 20, luminescence unit 21, reflector plate 22, first fluid cured layer 23, the first adhesive layer 24, the
Two fluid cured layers 25 and the second adhesive layer 26, light guide plate 20 have incidence surface 201, light-emitting surface 202, bottom surface 203 and side
204, wherein bottom surface 203 is with respect to light-emitting surface 202.Luminescence unit 21 adjacent to incidence surface 201, luminescence unit 21 to emit light L,
And light guide plate 20 is to guide the light L that luminescence unit 21 is emitted, so that the light L that is emitted of luminescence unit 21 is via entering light
Face 201 can be projected after entering light guide plate 20 by the light-emitting surface 202 of light guide plate 20.
Thus, light L can be projected towards the bottom plate 10 of keypad portion 1 with button 11, so that backlight keyboard 3000 produces
The effect of hair tonic light.In addition, reflector plate 22 is set to 203 lower section of bottom surface of light guide plate 20.In in practice, when light guide plate 20 guides
When the light L that luminescence unit 21 is emitted is projected by light-emitting surface 202, a part of light L can be penetrated by the bottom surface 203 of light guide plate 20
Go out, and reflector plate 22 can be used for reflecting by the light L that bottom surface 203 is projected to light-emitting surface 202, and light L is concentrated towards keyboard
The bottom plate 10 in portion 1 is projected with button 11, and then increases the illumination effect of backlight keyboard 3000.
In this embodiment, backing structure 2 can additionally comprise matte 27, be set on the light-emitting surface 202 of light guide plate 20,
That is, matte 27 is located between the light guide plate 20 of backing structure 2 and the bottom plate 10 of keypad portion 1, and matte 27 has transparent area 271
And light tight area 272, transparent area 271 passes through for the light L projected by the light-emitting surface 202 of light guide plate 20, without transparent area 272
It can stop that the light L projected by the light-emitting surface 202 of light guide plate 20 passes through.In other words, backing structure 2 can utilize the saturating of matte 27
The structure design in light area 271 and light tight area 272, makes light L be only capable of being appeared by the transparent area 271 on matte 27, uses limitation
The light extraction region of light guide plate 20.In in practice, the transparent area 271 of backing structure 2 can correspond to the position of each button 11 of keypad portion 1
It puts, thereby backlight keyboard 3000 can limit light L and be launched by the lower section of button 11 and pass through by matte 27, to reach desired
Illumination effect.
As shown in Figure 3A and 3B, first fluid cured layer 23 is set to side 204 and the cladding leaded light of light guide plate 20
The side 204 of plate 20, wherein first fluid cured layer 23 are flowable when uncured state.When light guide plate 20 guides luminescence unit
When the 21 light L emitted are projected by light-emitting surface 202, a part of light L can be projected by the side 204 of light guide plate 20, and the
One fluid cured layer 23 can be projected for the L that shuts out the light by side 204, and then stop light L in the side of light guide plate 20 204
It projects, the problem of so as to improve 20 side light leakage of light guide plate.In this embodiment, first fluid cured layer 23 can be by impermeable gloss oil
Made by black material, and first fluid cured layer 23 can be formed in the side 204 of light guide plate 20 in a manner that ink prints.And this
The material of invention first fluid cured layer 23 can be described in not limited to this embodiment, such as first fluid cured layer 23 also can be by half
It made by clear ink material, designs, is held depending on actual demand as using above-mentioned whichever.
It is noted that the mode that first fluid cured layer 23 is formed in the side 204 of light guide plate 20 can be not limited to
The mode of ink printing.For example, first fluid cured layer 23 is also using industrial ink jet printer with ink-jet (inkjet
Printing mode) is formed in the side 204 of light guide plate 20；Or light guide plate 20 is upright, so that the surrounding of light guide plate 20
It immerses in the pond of (dipping) full of first fluid cured layer 23 respectively, light guide plate 20 is then lain against into the first adhesive layer again
On 24；Or first is coated with around the surrounding of light guide plate 20 using slit head in a manner of slit coating (slot coating)
Fluid cured layer 23；Or light guide plate 20 is surrounded in a manner of curtain (curtain coating) using curtain head is drenched
Surrounding coating first fluid cured layer 23.In conclusion the processing procedure at first fluid cured layer 23 setting to 22 edge of reflector plate can
One of set is formed selected from ink-jet, dipping, slit, leaching curtain and the processing procedures such as printing.It is designed as using above-mentioned whichever, depending on
Depending on actual demand.
In addition, the first adhesive layer 24 is bonded between the bottom surface 203 of light guide plate 20 and reflector plate 22.From the above, first is viscous
Light guide plate 20 and reflector plate 22 can be bonded in and form barrier wall structure by closing layer 24, therefore in the setting of first fluid cured layer 23 to instead
It penetrates during 22 edge of piece and during in the uncured state, the first adhesive layer 24 (i.e. the barrier wall structure) can be limiting the
One fluid cured layer 23 can flow into the range between reflector plate 22 and light guide plate 20, so that first fluid cured layer 23 is set to instead
Penetrate the reflector plate edge 221 of piece 22 and be adjacent at the side 204 of light guide plate 20, that is, the first adhesive layer 24 can prevent it is first-class
Body cured layer 23 excessively overflows into the range between reflector plate 22 and light guide plate 20, and first fluid cured layer 23 is limited to be adjacent to
Without the bottom surface 203 of covering light guide plate 20 at the side 204 of light guide plate 20.Thus, reflector plate 22 just can reflect major part
The light L projected by the bottom surface 203 of light guide plate 20, and then keep backing structure 2 luminescent quality.
It is noted that the light-emitting surface 202 of light guide plate 20 has peripheral edge surface 2021 with central output optical zone 2022 (as schemed
Shown in 3B), it, can during first fluid cured layer 23 is formed in the side 204 of light guide plate 20 in a manner that ink prints
Peripheral edge surface 2021 is only covered in using jig (not being illustrated in figure) limitation first fluid cured layer 23, in being coated on
Entreat output optical zone 2022.So, first fluid cured layer 23 just will not be blocked is gone out by the center of the light-emitting surface 202 of light guide plate 20
Light L emitted by light area 2022.In in practice, which can be screen printing (screen printing) common net curtain
(screen), 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 to light guide plate 20
Side 204.In addition, the first adhesive layer 24 separately has inside 242, outside 241 and the inside 242 of the first adhesive layer 24 can be spaced
One width W.In this embodiment, width W can be 2 millimeters, but the present invention is not limited.In addition, the outside of the first adhesive layer 24
241 can be more than the side 204 of light guide plate 20, that is, projection of the side 204 of light guide plate 20 on the first adhesive layer 24 is located at the
Between the outside 241 of one adhesive layer 24 and inside 242 (in the range of i.e. width W is covered).
In this embodiment, the shape of reflector plate 22 is essentially the same as the shape of light guide plate 20, and the ruler of reflector plate 22
The very little size more than light guide plate 20.That is, reflector plate 22 has reflector plate edge 221, when reflector plate 22 is set to leaded light
When under the bottom surface 203 of plate 20, reflector plate edge 221 extends a prominent specific range D from the side of light guide plate 20 204, to provide
The first part 231 of first fluid cured layer 23 is located at the space on reflector plate 22.In in practice, specific range D can be between 1.5
Between millimeter and 2 millimeters.In this embodiment, the second part 232 of first fluid cured layer 23 can be covered in light guide plate 20
In the peripheral edge surface 2021 of light-emitting surface 202, thereby the first part 231 of first fluid cured layer 23, second part 232 and even
The side 204 of light guide plate 20 can be coated jointly by connecing the Part III 233 of first part 231 and second part 232, to improve light
Leakage problems of the line L at the side of light guide plate 20 204.
As shown in Figure 3A, perforation 205 is formed on light guide plate 20, perforation 205 has perforated side 2051, and second fluid is solid
Change the perforated side 2051 that layer 25 is coated on perforation 205.When second fluid cured layer 25 is coated on the perforated side of perforation 205
When 2051, the second adhesive layer 26, which can limit second fluid cured layer 25, can enter into the range between reflector plate 22 and light guide plate 20.
When the light L that the guiding luminescence unit 21 of light guide plate 20 is emitted is projected by light-emitting surface 202, a part of light L can be by leaded light
The perforated side 2051 of the perforation 205 of plate 20 projects, and second fluid cured layer 25 can be used for shutting out the light L by perforation 205
Perforated side 2051 project, bright spot is formed at the perforated side 2051 of the perforation 205 of light guide plate 20 to reduce light L, from
And improve the appearance of backlight keyboard 3000.It is configured as the structure between 25 and second adhesive layer 26 of second fluid cured layer, is
The structure configuration being identical between 23 and first adhesive layer 24 of first fluid cured layer, for the sake of clarity, repeats no more in this.
Referring to Fig. 4, Fig. 4 is the flow chart of the manufacturing method of first embodiment of the invention backing structure 2, under having
Row step：
Step 100：Prepare light guide plate 20.
Step 102：Prepare reflector plate 22.
Step 104：Light guide plate 20 is bonded on reflector plate 22 using the first adhesive layer 24 and the second adhesive layer 26, wherein
Reflector plate edge 221 extends prominent specific range D from side 204.
Step 106：The setting first fluid cured layer 23 at the side 204 of reflector plate edge 221 and neighbouring light guide plate 20,
And second fluid cured layer 25 is set in the perforated side 2051 of perforation 205.
It is described in detail below for the manufacturing method of backing structure 2, also referring to Fig. 5 A, Fig. 5 B, Fig. 6 A, figure
6B, Fig. 7 A, Fig. 7 B, Fig. 8 A, Fig. 8 B and Fig. 9, Fig. 5 A correspond to step 100 and step for first embodiment of the invention backing structure 2
Rapid 102 assembling schematic top plan view, Fig. 5 B are the assembling diagrammatic cross-section of backing structure 2 shown in Fig. 5 A, and Fig. 6 A are the present invention the
One embodiment backing structure 2 corresponds to the assembling schematic top plan view of step 104, and Fig. 6 B are cutd open for the assembling of backing structure 2 shown in Fig. 6 A
Face schematic diagram, Fig. 7 A are the assembling schematic top plan view that first embodiment of the invention backing structure 2 corresponds to step 106, and Fig. 7 B are figure
The assembling diagrammatic cross-section of backing structure 2 shown in 7A, Fig. 8 A are that the assembling that first embodiment of the invention backing structure 2 is completed is overlooked
Schematic diagram, Fig. 8 B are the assembling diagrammatic cross-section of backing structure 2 shown in Fig. 8 A, and Fig. 9 is first embodiment of the invention backing structure 2
Final assembling diagrammatic cross-section.
As shown in Figure 5A and 5B, can first prepare reflector plate 22 and light guide plate 20 (step 100 and step 102), wherein
Light guide plate 20 has the light guide plate inner peripheral 207 of light guide plate outer peripheral edge 206 and the edge formation along perforation 205.Such as Fig. 6 A
And shown in Fig. 6 B, the first adhesive layer 24 is continuously set, and along light guide plate outer peripheral edge 206 by the second adhesive layer 26 along light guide plate
Inner peripheral 207 is continuously set, and thereby light guide plate 20 can be defined inside region 208 by the first adhesive layer 24 and by the second bonding
Layer 26 defines lateral area 209, and the first adhesive layer 24 and the second adhesive layer 26 then can be used to be bonded in light guide plate 20 instead
(control step 104) is penetrated on piece 22.It is noted that since the size of reflector plate 22 is more than the size of light guide plate 20, therefore work as
When light guide plate 20 is bonded on reflector plate 22, the reflector plate edge 221 of reflector plate 22 can extend from the side of light guide plate 20 204 dashes forward
Go out a specific range D'.In in practice, specific range D' can be 7 millimeters, but the present invention is not limited.
As shown in Figure 7A and 7B, it is set in the side 204 at the reflector plate edge 221 of reflector plate 22 and neighbouring light guide plate 20
First fluid cured layer 23 is put, so that first fluid cured layer 23 is coated on light guide plate outer peripheral edge 206, and wearing in perforation 205
Hole side 2051 sets 25 (step 106) of second fluid cured layer, so that second fluid cured layer 25 is coated on light guide plate inner circumferential
Edge 207.It is noted that during first fluid cured layer 23 is set to light guide plate outer peripheral edge 206 and in this not
During solid state, the first adhesive layer 24 can be used for stopping first fluid cured layer 23, be limited first fluid cured layer 23
Outside inside region 208.On the other hand, during second fluid cured layer 25 is set to light guide plate inner peripheral 207 and locate
When the uncured state, the second adhesive layer 26 can be used for stopping second fluid cured layer 25, make second fluid cured layer 25
It is limited in outside lateral area 209.
As shown in Figure 8A and 8B, first fluid cured layer 23 in the side of light guide plate 20 204 is set and is being perforated
After 205 edge setting second fluid cured layer 25, first fluid cured layer 23 and second fluid cured layer 25 can be carried out
Curing first fluid cured layer 23 and second fluid cured layer 25 are used in baking.When first fluid cured layer 23 and second
After fluid cured layer 25 cures, can reflector plate 22 and light guide plate 20 be cut into molding again, remove part first fluid cured layer 23
With second fluid cured layer 25 so that perforation 205 keep run through without being blocked by second fluid cured layer 25.Then again will
Matte 27 is pasted on light guide plate 20, and the light tight area 272 (diagonal line pattern region) of matte 27 covers the first fluid and consolidates
Change the intersection (as shown in Figure 9) of layer 23 and the light guide plate 20, finally by luminescence unit 21 be set to light guide plate 20 side and
The incidence surface 201 (as shown in Figure 3) of neighbouring light guide plate 20.Thus, the assembling of backing structure 2 can be completed.
Referring to Fig. 10, Figure 10 is the diagrammatic cross-section of the backing structure 2' of second embodiment of the invention.As shown in Figure 10,
Backing structure 2' and the main difference of above-mentioned backing structure 2 are in the outside of the first adhesive layer 24' of backing structure 2'
241' is no more than the side 204 of light guide plate 20, that is, in this embodiment, the outside 241' of the first adhesive layer 24' and inside
242' can separate a width W', and wherein width W' can be 0.5 millimeter, and the outside 241' of the first adhesive layer 24' is no more than leaded light
The side 204 of plate 20, that is, projection of the side 204 of light guide plate 20 on the first adhesive layer 24' is positioned at the first adhesive layer 24
Except the range that width W' is covered.From the above, since the outside 241' of the first adhesive layer 24' is no more than the side of light guide plate 20
Face 204, therefore when the first adhesive layer 24' bonding light guide plates 20 are with reflector plate 22, the outside 241' of the first adhesive layer 24', lead
Tabula rasa 20 and reflector plate 22 can common definition go out the first infiltration space S 1, and the first part 231 of first fluid cured layer 23 in
First can be entered in setting up procedure and penetrate into space S 1.And this embodiment and the element with identical label in above-described embodiment,
With identical structure design and action principle, for the sake of clarity, repeated no more in this.
Please refer to Fig.1 the diagrammatic cross-section for the backing structure 2 " that 1, Figure 11 is third embodiment of the invention.As shown in figure 11,
The main difference of backing structure 2 " and above-mentioned backing structure 2 be in, backing structure 2 " without reflector plate 22 but comprising
There is a reflecting layer 28, reflecting layer 28 is coated on the bottom surface 203 of light guide plate 20, and reflecting layer 28 is reflecting the light projected by bottom surface 203
Line L, first fluid cured layer 23 covers reflecting layer 28 and 20 intersection of light guide plate, and first fluid cured layer 23 is extended downwardly and covered
The bottom surface periphery in lid reflecting layer 28, and the present invention be used for reflection light structure can depicted in not limited to this embodiment schema,
That is, backing structure 2 " is selectively included reflector plate 22 or reflecting layer 28, is designed as using above-mentioned whichever, end regards practical
Depending on demand.In addition, the first adhesive layer 24 of backing structure 2 " is bonded between 20 light-emitting surface 202 of light guide plate and matte 27.It changes
Sentence is talked about, and backing structure 2 " is without reflector plate structure, therefore the light guide plate 20 of backing structure 2 " is bonded on matte 27,
Structure configuration is different from the structure configuration that the light guide plate 20 of above-mentioned backing structure 2 is bonded in reflector plate 22.In this embodiment,
The size of matte 27 is more than the size of light guide plate 20, and matte 27 has matte edge 273, is led when the first adhesive layer 24 is bonded in
When tabula rasa 20 is with matte 27, matte edge 273 extends a prominent specific range D " from side 204.
From the above, the first adhesive layer 24 of backing structure 2 " can be bonded in light guide plate 20 and matte 27 and form barricade knot
Structure, thus during first fluid cured layer 23 is set to the side 204 of light guide plate 20 and in the uncured state when,
First adhesive layer 24 (i.e. the barrier wall structure) can enter matte 27 and light guide plate to limit first fluid cured layer 23
Range between 20, so that first fluid cured layer 23 is set to the matte edge 273 of matte 27 and is adjacent to the side of light guide plate 20
At face 204, that is, the first adhesive layer 24 can prevent the model that first fluid cured layer 23 is excessively overflowed between matte 27 and light guide plate 20
It encloses, and first fluid cured layer 23 is limited to be adjacent to the light extraction at the side 204 of light guide plate 20 without covering light guide plate 20
Face 202 so that the light-emitting surface 202 of light guide plate 20 can transmit most light L, and then keeps the luminous product of backing structure 2 "
Matter.
It is noted that the bottom surface 203 of light guide plate 20 has periphery bottom surface 2031 and 2032 (such as Figure 11 of central reflective area
It is shown), in the setting up procedure of first fluid cured layer 23, using jig (not being illustrated in figure) limitation first fluid curing
Layer 23 is only covered in periphery bottom surface 2031, without being coated on central reflective area 2032.So, first fluid cured layer 23
Just it will not block by the central reflective area 2032 of the bottom surface 203 of light guide plate 20, so that reflector plate 22 or reflecting layer 28 can be reflected greatly
Partial light L.In in practice, which can be network, but the present invention is not limited.
It is noted that the outside 241 of the first adhesive layer 24 of backing structure 2 " can have a width with inside 242
W ", wherein width W " can be 2 millimeters, and the outside 241 of the first adhesive layer 24 can be more than the side 204 of light guide plate 20, that is, lead
Projection of the side 204 of tabula rasa 20 on the first adhesive layer 24 is contained positioned at the width W " (i.e. 2 millimeters) of the first adhesive layer 24
In the range of lid.And this embodiment and in above-described embodiment have identical label element, with identical structure design with
Action principle for the sake of clarity, is repeated no more in this.
The flow chart for the manufacturing method that 2, Figure 12 is third embodiment of the invention backing structure 2 " is please referred to Fig.1, it includes
There are the following steps：
Step 300：Prepare light guide plate 20.
Step 302：Prepare matte 27.
Step 304：Light guide plate 20 is bonded on matte 27 using the first adhesive layer 24 and the second adhesive layer 26, wherein hiding
Piece edge 273 extends prominent specific range D " from side 204.
Step 306：The setting first fluid cured layer 23 at the side 204 of matte edge 273 and neighbouring light guide plate 20, and
In the perforated side 2051 of perforation 205, second fluid cured layer 25 is set.
It is described in detail below for the manufacturing method of backing structure 2 ", also referring to Figure 13 to Figure 16, Tu13Wei
The assembling diagrammatic cross-section of the corresponding step 300 of third embodiment of the invention backing structure 2 " and step 302, Figure 14 are the present invention the
The assembling diagrammatic cross-section of the corresponding step 304 of three embodiment backing structures 2 ", Figure 15 are third embodiment of the invention backing structure
The assembling diagrammatic cross-section of 2 " corresponding steps 306, Figure 16 are the assembling section that third embodiment of the invention backing structure 2 " is completed
Schematic diagram.
As shown in figure 13, matte 27 and light guide plate 20 (step 300 and step 302) can first be prepared.As shown in figure 14, it uses
Light guide plate 20 with the second adhesive layer 26 is bonded on matte 27 and (compares step 304) by the first adhesive layer 24.As shown in figure 15, in
(1) side 204 of light guide plate 20, (2) reflecting layer 28 and 20 intersection of light guide plate, the bottom surface outer peripheral edge in (3) reflecting layer 28 are set
First fluid cured layer 23, and in 25 (control step 306) of the edge of perforation 205 setting second fluid cured layer.Such as Figure 16 institutes
Show, first fluid cured layer 23 is set in the side of light guide plate 20 204 and cures in the edge of perforation 205 setting second fluid
After layer 25, first fluid cured layer 23 and second fluid cured layer 25 can be toasted, use curing first fluid curing
Layer 23 and second fluid cured layer 25.After first fluid cured layer 23 and second fluid cured layer 25 cure, can again by
Reflecting layer 28 cuts molding with light guide plate 20, removes extra first fluid cured layer 23 and second fluid cured layer 25, finally again
Luminescence unit 21 is set to the side of light guide plate 20 and the incidence surface 201 (as shown in figure 11) of neighbouring light guide plate 20.Such one
Come, the assembling of backing structure 2 " can be completed.
Please refer to Fig.1 the diagrammatic cross-section that 7, Figure 17 is one backing structure 2 " ' of fourth embodiment of the invention.Such as Figure 17 institutes
Show, backing structure 2 " ' with the main difference of above-mentioned backing structure 2 " be in, backing structure 2 " ' the first adhesive layer 24 "
Outside 241 " no more than light guide plate 20 side 204, that is, in this embodiment, the outside 241 " of the first adhesive layer 24 " with it is interior
Side 242 " can separate a width W " ', and wherein width W " ' can be 0.5 millimeter, and the outside 241 " of the first adhesive layer 24 " is no more than
The side 204 of light guide plate 20, that is, projection of the side 204 of light guide plate 20 on the first adhesive layer 24 " is located at the first adhesive layer
Except the range that 24 width W " ' is covered.From the above, since the outside 241 " of the first adhesive layer 24 " is no more than light guide plate
20 side 204, therefore when the first adhesive layer 24 " bonding light guide plate 20 is with reflector plate 22, the outside of the first adhesive layer 24 "
241 ", light guide plate 20 and reflector plate 22 can common definition go out the second infiltration space S 2, and second of first fluid cured layer 23
Divide 232 can enter second in setting up procedure and penetrate into space S 2.It is noted that backing structure 2 " ' the packet in this embodiment
Containing reflector plate 22, and the structure that the present invention is used for reflection light can be depicted in not limited to this embodiment schema, that is, backlight knot
Structure 2 " ' reflector plate 22 or reflecting layer 28 are selectively included, it designs, is held depending on actual demand as using above-mentioned whichever.
And this embodiment, with identical structure design and action principle, is with having the element of identical label in above-described embodiment
It asks succinct, is repeated no more in this.
Compared to the prior art, the present invention can be by the use of reflector plate or matte as base material, and separately utilizes adhesive layer will be guide-lighting
Plate is pasted on base material (i.e. reflector plate or matte), to provide fluid cured layer in being set on light-guide edge or light guide plate
Basis during hole edge, thereby fluid cured layer just can be set to hole edge on light-guide edge or light guide plate, and then
It shuts out the light and is projected by hole edge on light-guide edge or light guide plate, so as to improve asking for light guide plate side or hole light leakage
Topic.The foregoing is merely presently preferred embodiments of the present invention, and all equivalent changes and modifications done according to the present invention should all belong to the present invention
Scope of patent protection.
Claims (11)
1. a kind of backing structure suitable for illuminated keyboard, it is characterised in that the backing structure includes：
Light guide plate has the bottom surface of incidence surface, light-emitting surface, side and the opposite light-emitting surface；
Luminescence unit is adjacent to the incidence surface, the light which is emitted via the incidence surface enter the light guide plate and
It is projected by the light-emitting surface；
Reflector plate is set to the subjacent, and the reflector plate is to reflect the light projected by the bottom surface, the reflection chip size
More than the leaded light board size, which has reflector plate edge, which extends a prominent distance from the side；
First adhesive layer is bonded between the bottom surface and the reflector plate, which has outside, which is somebody's turn to do
Outside is close and is no more than the side of the light guide plate；And
First fluid cured layer is set at the reflector plate edge and the neighbouring side, and the first fluid cured layer is blocking
The light is projected via the side, and the first fluid cured layer is flowable when uncured state；
Wherein in during first fluid cured layer setting to the reflector plate edge and when being in the uncured state, this first
Adhesive layer, which limits the first fluid cured layer, can flow into range between the reflector plate and the light guide plate, first adhesive layer it is outer
Side, the bottom surface of the light guide plate and the reflector plate common definition go out the first infiltration space, and first fluid curing layer segment enters should
First penetrates into space.
2. backing structure as described in claim 1, it is characterised in that the light-emitting surface has peripheral edge surface and central output optical zone,
In in first fluid cured layer setting to during the reflector plate edge, limit the first fluid cured layer using jig and only cover
The peripheral edge surface is placed on, without being coated on the center output optical zone.
3. backing structure as described in claim 1, it is characterised in that also include：
Matte is set on the light-emitting surface, which has an at least transparent area and light tight area, to limit going out for the light guide plate
Light region, the light tight area cover the intersection of the first fluid cured layer and the light guide plate.
4. backing structure as described in claim 1, it is characterised in that first fluid cured layer setting to the reflector plate edge
Processing procedure be to form one of to gather selected from ink-jet, dipping, slit, leaching curtain and printing process.
5. a kind of backing structure suitable for illuminated keyboard, it is characterised in that the backing structure includes：
Light guide plate has the bottom surface of incidence surface, light-emitting surface, side and the opposite light-emitting surface；
Luminescence unit is adjacent to the incidence surface, the light which is emitted via the incidence surface enter the light guide plate and
It is projected by the light-emitting surface；
Matte is set on the light-emitting surface, and to limit the light extraction region of the light guide plate, which leads the matte more than this
Tabula rasa size, the matte have matte edge, which extends a prominent distance from the side；
First adhesive layer is bonded between the light-emitting surface and the matte, which has outside, which is somebody's turn to do
Outside is close and is no more than the side of the light guide plate；And
First fluid cured layer is set at the matte edge and adjacent side face, and the first fluid cured layer is blocking the light
Line is projected via the side, and the first fluid cured layer is flowable when uncured state；
Wherein when first fluid cured layer setting is to during the matte edge and in the uncured state, this is first viscous
Range between the matte and the light guide plate can be flowed by closing layer and limiting the first fluid cured layer, the outside of first adhesive layer,
The light-emitting surface of the light guide plate and the matte common definition go out the second infiltration space, first fluid curing layer segment enter this second
Penetrate into space.
6. backing structure as claimed in claim 5, it is characterised in that the bottom surface has periphery bottom surface and central reflective area, wherein
In the first fluid cured layer setting up procedure, limit the first fluid cured layer using jig and be only covered in the periphery bottom surface,
Without being coated on the central reflective area.
7. backing structure as claimed in claim 5, it is characterised in that first fluid cured layer setting to the matte edge
Processing procedure is to form one of set selected from ink-jet, dipping, slit, leaching curtain and printing process.
8. backing structure as claimed in claim 5, it is characterised in that also include：
Reflecting layer is coated on the bottom surface of the light guide plate, and the reflecting layer is to reflect the light projected by the bottom surface, this first
Fluid cured layer covers the reflecting layer and the light guide plate intersection, and extends to the bottom surface periphery in the reflecting layer.
9. the backing structure as described in claim 1 or 5, it is characterised in that the light guide plate has light guide plate outer peripheral edge, this first
Adhesive layer continuously sets along the light guide plate outer peripheral edge and defines inside region, when the first fluid cured layer is coated on the leaded light
During plate side, which stops the first fluid cured layer, and the first fluid cured layer is made to cannot be introduced into the medial area
Domain.
10. the backing structure as described in claim 1 or 5, it is characterised in that first adhesive layer have inside, the outside and this
One width of inside interval, and the width is between 0.5 millimeter and 2 millimeters.
11. the backing structure as described in claim 1 or 5, it is characterised in that the light guide plate has perforation, which has perforation
Side, and the backing structure also includes：Second fluid cured layer coats the perforated side.
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 |
|---|---|---|---|
| CN201410374191.8A CN104217883B (en) | 2014-06-09 | 2014-07-31 | A kind of backing structure being applicable to illuminated keyboard and manufacture method thereof |
| CN201610569525.6A CN106024476B (en) | 2014-07-31 | 2014-07-31 | A kind of backing structure suitable for illuminated keyboard |
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 CN106024476A (en) | 2016-10-12 |
| CN106024476B true CN106024476B (en) | 2018-07-06 |
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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 |
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| CN (1) | CN106024476B (en) |
Families Citing this family (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 |
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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106024476A (en) | 2016-10-12 |
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