CN214474903U - Heat-conducting, light-shading and electric-conducting backlight module of keyboard - Google Patents
Heat-conducting, light-shading and electric-conducting backlight module of keyboard Download PDFInfo
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- CN214474903U CN214474903U CN202120755538.9U CN202120755538U CN214474903U CN 214474903 U CN214474903 U CN 214474903U CN 202120755538 U CN202120755538 U CN 202120755538U CN 214474903 U CN214474903 U CN 214474903U
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Abstract
The utility model discloses a but backlight unit of heat conduction, shading, electrically conductive keyboard, backlight unit include: the light-shielding film, the light-guiding film, the light-reflecting film and the FPC are sequentially stacked, and a light-shielding heat-conducting layer is arranged on the light-shielding film and/or the light-reflecting film and/or the FPC; the shading heat conduction layer is arranged on the shading film and/or the reflective film and/or the FPC, so that heat dissipation is realized through the shading heat conduction layer, and the heat dissipation performance of the backlight module can be improved.
Description
Technical Field
The utility model relates to a backlight unit of notebook computer keyboard specifically is backlight unit of keyboard that can heat conduction, shading, electrically conduct.
Background
At present, notebook computers are thinner and thinner, so that heat dissipation becomes an important obstacle restricting the improvement of the performance of the notebook computers, the heat dissipation with good performance is good, the problem of heat which needs to be solved for the pen-type keyboard with backlight is more urgent, because the keyboard with the backlight function is provided with a backlight module below the backlight, a light source above the backlight module can generate heat, the heat generated by a computer host and the heat of the backlight are concentrated in a certain area, and the computer is halted and the performance of the notebook computers is reduced.
The backlight module on the market at present comprises upper photomask, middle level leaded light membrane, lower floor's reflective membrane and light source FPC (take LED), and present backlight module only provides the keyboard light source, has LED's position heat to concentrate, because photomask, leaded light membrane, reflective membrane and FPC all can't be quick with the heat dispersion cooling, influence notebook computer's performance.
The utility model discloses it is not enough to solve prior art and research and propose promptly.
SUMMERY OF THE UTILITY MODEL
The backlight module aims at the technical problem that the backlight module in the prior art cannot rapidly disperse and cool heat to influence the performance of a notebook computer.
The utility model provides a technical scheme that its technical problem adopted is: but backlight unit of heat conduction, shading, electrically conductive keyboard, backlight unit include: the light-shielding film, the light-guiding film, the light-reflecting film and the FPC are sequentially stacked, and a light-shielding heat-conducting layer is arranged on the light-shielding film and/or the light-reflecting film and/or the FPC.
According to the backlight module of the heat-conducting, light-shading and electric-conducting keyboard, the light-shading heat-conducting layer is formed by curing black light-shading heat-conducting ink.
According to the backlight module of the keyboard capable of conducting heat, shading light and conducting electricity, the thickness of the shading heat conduction layer is 0.01-0.2 mm.
The backlight module of the keyboard capable of conducting heat, shading light and conducting electricity as described above, the shading film includes: the light-shading heat-conducting layer is arranged between the base material and the reflecting layer A.
As above, the backlight module of the heat-conducting, light-shielding and electric-conducting keyboard, the reflective film includes: glue layer B, reflector layer B and outer B that stack gradually, the shading heat-conducting layer set up between reflector layer B and outer B.
As mentioned above, the backlight module of the heat-conductive, light-shielding and electric-conductive keyboard, the FPC includes: the circuit comprises an electronic element layer, a glue layer C, an FPC layer and an outer layer C which are sequentially stacked, wherein the FPC layer is provided with a circuit, and the shading heat conduction layer is arranged between the FPC layer and the outer layer C.
The utility model discloses a black shading heat conduction printing ink for forming shading heat-conducting layer, black shading heat conduction printing ink contain following component with the percentage:
the percentage content of the graphene is 65-69 percent,
13 to 17 percent of resin,
2 to 4 percent of defoaming agent,
4 to 6 percent of boiled oil water,
8-12% of black ink.
The black shading heat-conducting ink for forming the shading heat-conducting layer comprises the following components in percentage: the percentage content of the graphene is 67%, the percentage content of the resin is 15%, the percentage content of the defoaming agent is 3%, the percentage content of the boiled oil water is 5%, and the percentage content of the black ink is 10%.
The utility model has the advantages that:
1. the utility model discloses a backlight unit is through being equipped with the shading heat-conducting layer on photomask and/or reflective membrane and/or FPC, realizes the heat dissipation through the shading heat-conducting layer, can improve backlight unit's heat dispersion.
2. The utility model discloses a photomask is through being equipped with the shading heat-conducting layer between substrate and reflector layer A, distributes away the heat on the photomask through the shading heat-conducting layer, improves the heat dispersion of photomask, and then promotes backlight unit's heat dispersion.
3. The utility model discloses the reflective membrane distributes away the heat on the reflective membrane through the shading heat-conducting layer through being equipped with the shading heat-conducting layer between reflector layer B and outer B, improves the heat dispersion of reflective membrane, and then promotes backlight unit's heat dispersion.
4. The utility model discloses a FPC distributes away the heat on FPC through being equipped with the shading heat-conducting layer between FPC layer and outer C, comes FPC through the shading heat-conducting layer, improves FPC's heat dispersion, and then promotes backlight unit's heat dispersion.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic cross-sectional view of a backlight module according to the present invention;
fig. 2 is a front view of the backlight module of the present invention.
FIG. 3 is a schematic cross-sectional view of a light-shielding film according to the present invention;
fig. 4 is a front view of the light shielding film of the present invention;
FIG. 5 is a schematic cross-sectional view of a reflective film according to the present invention;
fig. 6 is a front view of the reflective film of the present invention;
FIG. 7 is a schematic cross-sectional view of the FPC of the present invention;
fig. 8 is a front view of the FPC of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 8, the backlight module 800 of the heat-conductive, light-shielding and electrically-conductive keyboard of the present embodiment includes: the light-shielding film comprises a light-shielding film 1, a light-guiding film 2, a reflective film 3 and an FPC4 which are sequentially stacked, wherein a light-shielding heat-conducting layer 1000 is arranged on the light-shielding film 1 and/or the reflective film 3 and/or the FPC 4. The utility model discloses a backlight unit is through being equipped with the shading heat-conducting layer on photomask and/or reflective membrane and/or FPC, realizes the heat dissipation through the shading heat-conducting layer, can improve backlight unit's heat dispersion.
In this embodiment, the light-shielding heat-conducting layer 1000 is formed by curing black light-shielding heat-conducting ink, and the black light-shielding heat-conducting ink is prepared by stirring graphene, resin, an antifoaming agent, boiled oil water and black ink provided by kunshan fulin sinda electronics ltd, wherein the number percentage is as follows: 65-69% of graphene, 13-17% of resin, 2-4% of defoaming agent, 4-6% of boiled oil water and 8-12% of black ink.
In this embodiment, the thickness of the light-shielding heat conduction layer 1000 is 0.01-0.2 mm.
As shown in fig. 3 and 4, the light shielding film 1 includes: the light-shading heat-conducting layer 1000 is arranged between the base material 12 and the light-reflecting layer A14. The utility model discloses a photomask is through being equipped with the shading heat-conducting layer between substrate and reflector layer A, distributes away the heat on the photomask through the shading heat-conducting layer, improves the heat dispersion of photomask, and then promotes backlight unit's heat dispersion.
In this embodiment, the reflective layer a14 is formed by curing white ink, the type of which is HV800-W100, and the manufacturer is kunshan welfare trusted electronics ltd.
In this embodiment, the substrate 12 is a PET film; the thickness of the base material 12 is 0.01 to 0.2 mm.
In this embodiment, in order to facilitate folding of the light shielding film, a release paper layer a16 is disposed outside the first glue layer 11.
In this embodiment, the thickness of the light reflecting layer A14 is 0.01-0.2 mm.
In order to improve the heat dissipation performance, the reflective film is provided with a plurality of heat dissipation holes a17 penetrating through the reflective film.
As shown in fig. 5 and 6, the light reflecting film 3 includes: the light-shading heat-conducting layer 1000 is arranged between the light reflecting layer B32 and the outer layer B34. The utility model discloses the reflective membrane distributes away the heat on the reflective membrane through the shading heat-conducting layer through being equipped with the shading heat-conducting layer between reflector layer B and outer B, improves the heat dispersion of reflective membrane, and then promotes backlight unit's heat dispersion.
The outer layer B is selected according to the function required in practice, and the outer layer B34 is formed by curing an insulating or non-insulating ink.
In this embodiment, the reflective layer B32 is a PET film or a copper foil or an aluminum foil; preferably, the reflective layer B32 is a PET film, and the thickness of the reflective layer B32 is 0.01-0.2 mm.
In this embodiment, in order to facilitate folding of the reflective film, a release paper layer B35 is disposed outside the glue layer B31.
In this example, the thickness of the outer layer B34 was 0.01 to 0.2 mm.
In order to improve the heat dissipation performance, the reflective film is provided with a plurality of heat dissipation holes B36 penetrating through the reflective film.
As shown in fig. 7 and 8, the FPC4 includes: the light-shading and heat-conducting layer 1000 is arranged between the FPC layer 43 and the outer layer C45. The utility model discloses a FPC distributes away the heat on FPC through being equipped with the shading heat-conducting layer between FPC layer and outer C, comes FPC through the shading heat-conducting layer, improves FPC's heat dispersion, and then promotes backlight unit's heat dispersion.
The outer layer C is selected according to the function required in practice, wherein the outer layer C45 is formed by curing insulating or non-insulating ink, and in the embodiment, the thickness of the C45 is 0.01-0.2 mm.
In the present embodiment, the electronic element layer 41 has electronic elements such as LEDs, ICs, resistors, capacitors, and the like.
In order to improve heat dissipation performance, a plurality of heat dissipation holes C46 penetrating through the FPC are formed in the FPC.
In this embodiment, a black light-shielding heat-conducting ink for forming a light-shielding heat-conducting layer includes, in percentage, the following components:
the percentage content of the graphene is 65-69 percent,
13 to 17 percent of resin,
2 to 4 percent of defoaming agent,
4 to 6 percent of boiled oil water,
8-12% of black ink.
The following mixture ratio is preferred: the percentage content of the graphene is 67%, the percentage content of the resin is 15%, the percentage content of the defoaming agent is 3%, the percentage content of the boiled oil water is 5%, and the percentage content of the black ink is 10%. The ink is prepared by stirring graphene, resin, a defoaming agent, boiled oil water and black ink provided by Kunshan Fulin Xinda electronics Limited company, and the ink can obviously improve the heat dissipation performance of the backlight module.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (6)
1. But backlight unit of heat conduction, shading, electrically conductive keyboard, characterized in that, backlight unit (800) include: the light-shielding film (1), the light-guiding film (2), the reflective film (3) and the FPC (4) are sequentially stacked, and a light-shielding heat-conducting layer (1000) is arranged on the light-shielding film (1) and/or the reflective film (3) and/or the FPC (4).
2. The backlight module of claim 1, wherein the light-shielding and heat-conducting layer (1000) is formed by curing black light-shielding and heat-conducting ink.
3. The backlight module of claim 1, wherein the light-shielding and heat-conducting layer (1000) has a thickness of 0.01-0.2 mm.
4. The backlight module of claim 1, wherein the light shielding film (1) comprises: the light-shading heat-conducting layer comprises a first glue layer (11), a base material (12), a light-reflecting layer A (14) and a second glue layer (15) which are sequentially stacked, wherein the light-shading heat-conducting layer (1000) is arranged between the base material (12) and the light-reflecting layer A (14).
5. The backlight module of claim 1, wherein the reflective film (3) comprises: glue layer B (31), reflection of light layer B (32) and outer layer B (34) that stack gradually, shading heat-conducting layer (1000) set up between reflection of light layer B (32) and outer layer B (34).
6. The backlight module of a heat-conductive, light-shielding, and electrically-conductive keyboard according to claim 1, wherein the FPC (4) comprises: the light-shading heat-conducting layer comprises an electronic element layer (41), a glue layer C (42), an FPC layer (43) with a circuit and an outer layer C (45) which are sequentially stacked, wherein the light-shading heat-conducting layer (1000) is arranged between the FPC layer (43) and the outer layer C (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755538.9U CN214474903U (en) | 2021-04-13 | 2021-04-13 | Heat-conducting, light-shading and electric-conducting backlight module of keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755538.9U CN214474903U (en) | 2021-04-13 | 2021-04-13 | Heat-conducting, light-shading and electric-conducting backlight module of keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214474903U true CN214474903U (en) | 2021-10-22 |
Family
ID=78178420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120755538.9U Active CN214474903U (en) | 2021-04-13 | 2021-04-13 | Heat-conducting, light-shading and electric-conducting backlight module of keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214474903U (en) |
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2021
- 2021-04-13 CN CN202120755538.9U patent/CN214474903U/en active Active
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