CN204204709U - The backlight module of light leakage - Google Patents
The backlight module of light leakage Download PDFInfo
- Publication number
- CN204204709U CN204204709U CN201420581142.7U CN201420581142U CN204204709U CN 204204709 U CN204204709 U CN 204204709U CN 201420581142 U CN201420581142 U CN 201420581142U CN 204204709 U CN204204709 U CN 204204709U
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- light
- holes
- guide plate
- backlight module
- light guide
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Abstract
The utility model is a kind of backlight module of light leakage, anti-dazzling screen is combined on substrate, there is relative first surface and second surface and be provided with the first holes sheet, light guide plate is combined in anti-dazzling screen, light guide plate is provided with the second holes that aperture is greater than the first holes, anti-dazzling screen has more an extension compared to light guide plate, anti-dazzling screen is provided with light shielding part in extension, light-emitting component is arranged on an incidence surface of light guide plate, reflector plate is combined in light guide plate, corresponding second holes of reflector plate and be provided with the 3rd holes that aperture is less than the second holes, reflector plate has more gluing section compared to light guide plate at a side of the second holes at a side of the 3rd holes, gluing section connects extension the involution light guide plate side at the second holes, stop that the light of light-emitting component penetrates from the second broken hole position whereby, avoid light leakage phenomena occurs.
Description
Technical field
The utility model has about a kind of backlight module, espespecially a kind of backlight module for keyboard.
Background technology
Computer is used widely by masses and becomes indispensable instrument now, and the input unit through computer peripheral can allow a large amount of electronics information circulate rapidly via network, and wherein, namely keyboard is input unit general at present.On the other hand, use keyboard when environment is more dim around for user, often cannot know the character on identification button or symbol because of the deficiency of extraneous light, cause input difficulty.For improving above-mentioned situation, current market has multiple illuminated keyboard.
Current illuminated keyboard is reach luminous function using backlight module as light source mostly.Backlight module comprises light guide plate and light-emitting component, and light-emitting component is arranged on the side of light guide plate, and again, the light that light-emitting component sends can exhale via the guiding of light guide plate.
But backlight module often meets needs design one place or many places holes, arrange reference column or other structures to provide, the light that this measure but makes light-emitting component send leaks from broken hole position to be dispersed, thus the phenomenon of light leak occurs.The generation of this light leakage phenomena can affect comfort when using keyboard, causes the inconvenience in use and puzzlement.
In view of this, the present inventor, for achieving the above object, is that spy concentrates on studies and coordinates the utilization of scientific principle, finally proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned disappearance.
Utility model content
An object of the present utility model, is the backlight module providing a kind of light leakage, to avoid the comfort when broken hole position generation light leakage phenomena and impact use keyboard.
In order to reach above-mentioned object, the utility model provides a kind of backlight module of light leakage, comprising: a substrate; One anti-dazzling screen, has a relative first surface and a second surface, and this anti-dazzling screen is provided with one first holes running through this first surface and this second surface, and this anti-dazzling screen combines on the substrate with this first surface; One light guide plate, be combined in this second surface, this light guide plate to should the first holes and be provided with one second holes that aperture is greater than this first holes, wherein, this anti-dazzling screen has more an extension compared to this light guide plate at a side of this second holes at a side of this first holes, and this anti-dazzling screen is provided with one first light shielding part on this extension; One light-emitting component, is arranged on an incidence surface of this light guide plate; And a reflector plate, be combined in a side of this light guide plate, this reflector plate is to should the second holes and be provided with one the 3rd holes that aperture is less than this second holes, this reflector plate has more a gluing section compared to this light guide plate at a side of this second holes at a side of the 3rd holes, this gluing section connect this extension and this light guide plate of involution at a side of this second holes, to stop that the light of this light-emitting component penetrates from this second broken hole position.
The backlight module of above-mentioned light leakage, wherein binds with viscose between this extension and this gluing section mutually.
The backlight module of above-mentioned light leakage, it more comprises an adhesion layer, and this adhesion layer is arranged between the first surface of this substrate and this anti-dazzling screen.
The backlight module of above-mentioned light leakage, wherein to cover this extension whole for this first light shielding part.
The backlight module of above-mentioned light leakage, wherein this light shielding part is a black oil ink-covered area of printing.
The backlight module of above-mentioned light leakage, wherein this first light shielding part more comprises a white ink district, and this white ink area overlapping is positioned under this black oil ink-covered area, and the area in this white ink district is less than or equal to the area of this black oil ink-covered area.
The backlight module of above-mentioned light leakage, it more comprises one second light shielding part, and this second light shielding part is arranged on the side of this gluing section to this light guide plate.
The backlight module of above-mentioned light leakage, wherein this light guide plate is provided with multiple pip.
The backlight module of above-mentioned light leakage, wherein this viscose is light absorptive latex.
The backlight module of above-mentioned light leakage, wherein this gluing section in bending and by hot-forming person.
In order to reach above-mentioned object, the utility model also provides a kind of keyboard with the backlight module of light leakage described in above-mentioned any one, comprise a circuit board and multiple button, this circuit board is arranged on the substrate, and those buttons combine on the board respectively.
Compared to known, the light guide plate of the backlight module of light leakage of the present utility model has inside contracted a segment distance in the position of holes compared to shadow shield, and therefore, shadow shield can have more an extension relative to light guide plate, on the other hand, reflector plate also can have more a gluing section relative to light guide plate.Therefore, viscose is arranged between extension and gluing section, and involution light guide plate one side.Accordingly, when the light of light-emitting component conducts via light guide plate, light can be launched the unlikely side inside contracted from light guide plate, reaches whereby and light leakage phenomena can not occur at broken hole position, maintains comfort when using keyboard.
Accompanying drawing explanation
Fig. 1 is the assembled sectional view of the backlight module of light leakage of the present utility model;
Fig. 2 is the close-up schematic view of A part in Fig. 1;
Fig. 3 is another enforcement schematic diagram of the backlight module of light leakage of the present utility model;
Fig. 4 is the another enforcement schematic diagram of the backlight module of light leakage of the present utility model;
Fig. 5 is an enforcement schematic diagram again of the backlight module of light leakage of the present utility model;
Fig. 6 is the holes position view of the backlight module of light leakage of the present utility model.
Wherein, Reference numeral:
1 ... backlight module 2 ... keyboard
3 ... circuit board 4 ... button
5 ... holes 6 ... reference column
10 ... substrate 20 ... anti-dazzling screen
200 ... first holes 201 ... first surface
202 ... second surface 21 ... extension
22 ... first light shielding part 221 ... black oil ink-covered area
222 ... white ink district 30 ... light guide plate
31 ... pip 300 ... second holes
40 ... light-emitting component 50 ... reflector plate
500 ... 3rd holes 51 ... gluing section
60 ... viscose 70 ... adhesion layer
80 ... second light shielding part
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but appended accompanying drawing only provides with reference to and use is described, is not used for the utility model in addition limitr.
Please refer to Fig. 1 and Fig. 2, be respectively assembled sectional view and the close-up schematic view of the backlight module of light leakage of the present utility model.The backlight module 1 of light leakage of the present utility model comprises substrate 10, anti-dazzling screen 20, light guide plate 30, light-emitting component 40, reflector plate 50 and a viscose 60.This anti-dazzling screen 20, this light guide plate 30 and this reflector plate 50 are sequentially arranged on a side of this substrate 10.In the present embodiment, this backlight module 1 more comprises an adhesion layer 70, and this adhesion layer 70 is arranged between this substrate 10 and this anti-dazzling screen 20.
Moreover the utility model also provides a kind of keyboard 2 with the backlight module of light leakage.This keyboard 2 comprises backlight module 1, circuit board 3 of the present utility model and multiple button 4.This circuit board 3 is arranged on this substrate 10, and those buttons 4 are combined on this circuit board 3.In addition, this backlight module 1 includes at least one holes 5, and providing of this holes 5 can be used for arranging reference column 6 or other structures etc.
This substrate 10 can by metal as the materials such as aluminium be formed.This substrate 10 is as the supporting bracket in order to arrange those buttons 4.This anti-dazzling screen 20, preferably, is set to plastic cement diaphragm.This anti-dazzling screen 20 has relative first surface 201 and a second surface 202.This anti-dazzling screen 20 is provided with one first holes 200 running through this first surface 201 and this second surface 202.This anti-dazzling screen 20 is combined on this substrate 10 with this first surface 201.
This light guide plate 30 is combined in the second surface 202 of this anti-dazzling screen 20.This light guide plate 30 to should the first holes 200 and be provided with one second holes 300 that aperture is greater than this first holes 200, wherein, this anti-dazzling screen 20 has more an extension 21 compared to this light guide plate 30 at a side of this second holes 300 at a side of this first holes 200.This anti-dazzling screen 20 is provided with one first light shielding part 22 on this extension 21.
This light-emitting component 40 preferably, is a LED element.This light-emitting component 40 is arranged on an incidence surface of this light guide plate 30, and incidence surface can be the side of light guide plate 30, also can offer perforation in light guide plate 30 and by light-emitting component 40 as among perforation, now the sidewall of perforation is then incidence surface.The light that this light-emitting component 40 sends conducts via this light guide plate 30.
This reflector plate 50 is combined in a side of this light guide plate 30.This reflector plate 50 to should light guide plate 30 the second holes 300 and be provided with one the 3rd holes 500 that aperture is less than this second holes 300.This reflector plate 50 has more a gluing section 51 compared to this light guide plate 30 at a side of this second holes 300 at a side of the 3rd holes 500.
This gluing section 51 is connected to this extension 21.This gluing section 51 connects this extension 21 this light guide plate 30 of involution at a side of this second holes 300, stops that the light of this backlight module 1 penetrates from this second holes 300 whereby.In the middle of the present embodiment, a viscose 60 is arranged between this extension 21 and this gluing section 51, mutually binds between this extension 21 and this gluing section 51 with viscose 60.This viscose 60 preferably, is light absorptive latex.
In more detail, this adhesion layer 70 is arranged between the first surface 201 of this substrate 10 and this anti-dazzling screen 20.This gluing section 51 is combined in the second surface 202 of this anti-dazzling screen 20 through this adhesion layer 70.Preferably, this gluing section 51 is a structure bent towards anti-dazzling screen 20, actual when implementing, and this gluing section 51 can by hot-forming and in bending person.
In addition, this first light shielding part 22 covers from this first holes 200 lateral margin and extends.It is whole that the scope that arranges of this first light shielding part 22 can be set to cover this extension 21, or, the scope that arranges of this first light shielding part 22 can smaller/slightly larger than the length of this extension 21, the visual actual behaviour in service of this first light shielding part 22 (whether being provided with button etc. as neighbouring) and being adjusted.Preferably, this light shielding part 22 is the black oil ink-covered area 221 that printing is formed, the light leaked above the second holes 300 of this light guide plate 30 with stop by the setting of this light shielding part 22.
Please continue with reference to Fig. 3 and Fig. 4, implement schematic diagram for another two kinds that are respectively the backlight module of light leakage of the present utility model.As shown in Figure 3, be that with Fig. 2 difference this first light shielding part 22 more comprises a white ink district 222.This white ink district 222 overlap is positioned under this black oil ink-covered area 221, and the area in this white ink district 222 is less than or equal to the area of this black oil ink-covered area 221.The utility model increases the shaded effect of this light shielding part 22 by the set-up mode that this white ink district 222 is overlapped in this black oil ink-covered area 221.
Please separately join Fig. 4, be that this backlight module 1 more includes one second light shielding part 80 with Fig. 2 difference, the structure of this second light shielding part 80 is identical with this first light shielding part 22.In the present embodiment, this second light shielding part 80 is arranged on the side of this gluing section 51 towards this light guide plate 30.The light leaked below the second holes 300 of this light guide plate 30 can be stopped by the setting of this second light shielding part 80, strengthen the effect preventing light leak.
Referring again to Fig. 5, for another of the backlight module of light leakage of the present utility model implements schematic diagram.Be that this light guide plate 30 is more provided with multiple pip 31 with Fig. 1 difference.The setting of those pips 31 can increase the reflection efficiency of this light guide plate 30.Accordingly, backlight module 1 of the present utility model, except having and preventing the effect of light leak, has more the illumination effect increasing this backlight module 1.
Please continue with reference to Fig. 6, be the holes position view of the backlight module of light leakage of the present utility model.The position of the corresponding holes 5 of backlight module 1 of the utility model light leakage and arranging.As can be seen from Figure 6, the position of those holes 5 is the intersection of position three buttons 4 in this keyboard 2 generally, not as restriction during actual enforcement.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (11)
1. a backlight module for light leakage, is characterized in that, comprising:
One substrate;
One anti-dazzling screen, has a relative first surface and a second surface, and this anti-dazzling screen is provided with one first holes running through this first surface and this second surface, and this anti-dazzling screen combines on the substrate with this first surface;
One light guide plate, be combined in this second surface, this light guide plate to should the first holes and be provided with one second holes that aperture is greater than this first holes, wherein, this anti-dazzling screen has more an extension compared to this light guide plate at a side of this second holes at a side of this first holes, and this anti-dazzling screen is provided with one first light shielding part on this extension;
One light-emitting component, is arranged on an incidence surface of this light guide plate; And
One reflector plate, be combined in a side of this light guide plate, this reflector plate is to should the second holes and be provided with one the 3rd holes that aperture is less than this second holes, this reflector plate has more a gluing section compared to this light guide plate at a side of this second holes at a side of the 3rd holes, this gluing section connect this extension and this light guide plate of involution at a side of this second holes, to stop that the light of this light-emitting component penetrates from this second broken hole position.
2. the backlight module of light leakage as claimed in claim 1, is characterized in that, wherein mutually bind with viscose between this extension and this gluing section.
3. the backlight module of light leakage as claimed in claim 1, it is characterized in that, it more comprises an adhesion layer, and this adhesion layer is arranged between the first surface of this substrate and this anti-dazzling screen.
4. the backlight module of light leakage as claimed in claim 1, is characterized in that, wherein to cover this extension whole for this first light shielding part.
5. the backlight module of light leakage as claimed in claim 1, is characterized in that, wherein this light shielding part is a black oil ink-covered area of printing.
6. the backlight module of light leakage as claimed in claim 5, it is characterized in that, wherein this first light shielding part more comprises a white ink district, and this white ink area overlapping is positioned under this black oil ink-covered area, and the area in this white ink district is less than or equal to the area of this black oil ink-covered area.
7. the backlight module of light leakage as claimed in claim 1, it is characterized in that, it more comprises one second light shielding part, and this second light shielding part is arranged on the side of this gluing section to this light guide plate.
8. the backlight module of light leakage as claimed in claim 1, it is characterized in that, wherein this light guide plate is provided with multiple pip.
9. the backlight module of light leakage as claimed in claim 2, it is characterized in that, wherein this viscose is light absorptive latex.
10. the backlight module of light leakage as claimed in claim 1, is characterized in that, wherein this gluing section in bending by hot-forming person.
11. 1 kinds of keyboards with the backlight module of the light leakage according to any one of claim 1 to 10, is characterized in that, comprise a circuit board and multiple button, this circuit board is arranged on the substrate, and those buttons combine on the board respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581142.7U CN204204709U (en) | 2014-10-09 | 2014-10-09 | The backlight module of light leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581142.7U CN204204709U (en) | 2014-10-09 | 2014-10-09 | The backlight module of light leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204709U true CN204204709U (en) | 2015-03-11 |
Family
ID=52662638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420581142.7U Expired - Fee Related CN204204709U (en) | 2014-10-09 | 2014-10-09 | The backlight module of light leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204709U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304388A (en) * | 2015-09-08 | 2016-02-03 | 苏州达方电子有限公司 | Light-emitting keyboard and shading structure thereof |
| TWI578354B (en) * | 2015-08-21 | 2017-04-11 | 達方電子股份有限公司 | Illuminated keyboard and light shielding structure thereof |
| US9875864B2 (en) | 2015-08-21 | 2018-01-23 | Darfon Electronics Corp. | Keyboard and backlight module |
| CN108305809A (en) * | 2018-01-25 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| TWI631587B (en) * | 2015-08-21 | 2018-08-01 | 達方電子股份有限公司 | Backlight module adapted for a keyboard and keyboard therewith |
| TWI742907B (en) * | 2020-11-03 | 2021-10-11 | 達方電子股份有限公司 | Backlight apparatus used in illuminated keyboard |
-
2014
- 2014-10-09 CN CN201420581142.7U patent/CN204204709U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI578354B (en) * | 2015-08-21 | 2017-04-11 | 達方電子股份有限公司 | Illuminated keyboard and light shielding structure thereof |
| US9875864B2 (en) | 2015-08-21 | 2018-01-23 | Darfon Electronics Corp. | Keyboard and backlight module |
| US10014133B2 (en) | 2015-08-21 | 2018-07-03 | Darfon Electronics Corp. | Keyboard and backlight module |
| TWI631587B (en) * | 2015-08-21 | 2018-08-01 | 達方電子股份有限公司 | Backlight module adapted for a keyboard and keyboard therewith |
| CN105304388A (en) * | 2015-09-08 | 2016-02-03 | 苏州达方电子有限公司 | Light-emitting keyboard and shading structure thereof |
| CN108305809A (en) * | 2018-01-25 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| TWI742907B (en) * | 2020-11-03 | 2021-10-11 | 達方電子股份有限公司 | Backlight apparatus used in illuminated keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |