CN208368403U - A kind of high light transmission silica gel push-button light guiding film - Google Patents
A kind of high light transmission silica gel push-button light guiding film Download PDFInfo
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- CN208368403U CN208368403U CN201820988006.8U CN201820988006U CN208368403U CN 208368403 U CN208368403 U CN 208368403U CN 201820988006 U CN201820988006 U CN 201820988006U CN 208368403 U CN208368403 U CN 208368403U
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- guiding film
- light guiding
- silica gel
- light transmission
- gel push
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Abstract
The utility model relates to backlight key technical fields, refer in particular to a kind of high light transmission silica gel push-button light guiding film, it includes Dome piece and the light guiding film for covering Dome piece, the Dome piece includes the reflecting layer and spacer layer that successively lamination is arranged from top to bottom, the spacer layer is arranged at intervals with several metal clips, printing glue-line is equipped between the upper surface and light guiding film in the reflecting layer, the lower surface in the reflecting layer offsets with metal clips, multiple rough optical microstructures are distributed in the bottom surface of the light guiding film, single optical microstructures are corresponding with the position of single metal elastic slice, the light guiding film is high light transmission colloidal silica, the thickness of the light guiding film is in 0.12-0.2mm.The overall brightness for improving the utility model, solves the problems, such as that TPU material light guiding film is easily turned to be yellow, and avoids the thickness of light guiding film excessively thin and leads to metal clips rebound elastic force deficiency and can not separate with PCB circuit board, the thickness of light guiding film is blocked up and influences handfeel of keys.
Description
Technical field
The utility model relates to backlight key technical fields, refer in particular to a kind of high light transmission silica gel push-button light guiding film.
Background technique
Backlight key is mainly used in keyboard or mobile phone key shines, and user can see under low light environment
Key.The thickness of push-button light guiding film is difficult to control at present, and there are light guiding films easily to turn to be yellow, key press feel is poor, light source utilizes
The problems such as rate is low.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of high light transmission silica gel push-button light guiding film, optimize its key hand
Sense rate and light guiding film brightness.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of high light transmission silica gel push-button light guiding film comprising Dome piece and the light guiding film for covering Dome piece, it is described
Dome piece includes that successively the reflecting layer of lamination setting and spacer layer PCB circuit board, the spacer layer are arranged at intervals with from top to bottom
Several metal clips are equipped with printing glue-line, the lower surface in the reflecting layer between the upper surface and light guiding film in the reflecting layer
It offsets with metal clips, multiple rough optical microstructures, single optical microstructures are distributed in the bottom surface of the light guiding film
Corresponding with the position of single metal elastic slice, the light guiding film is high light transmission colloidal silica, and the thickness of the light guiding film is in 0.12-0.2mm.
Further, optical microstructures are distributed across the optics mesh dot matrix of light guiding film, and the optics mesh dot matrix is most
For dot away from for 0.03mm, site size is 0.01-0.02mm.
Further, the reflecting layer is equipped with several gaskets, the middle part one-to-one correspondence of gasket and metal clips.
Further, gasket is circular gasket, and thickness is in 0.03-0.13mm.
Further, double-sided adhesive is posted in the lower surface in the reflecting layer.
Further, the spacer layer is PET material.
Further, the longitudinal cross-section arch bridge shape of single metal elastic slice, the transversal cross-section of single metal elastic slice are waist type knot
Structure, it is the straight line being parallel to each other and another pair opposite side is the camber line being parallel to each other that the waist type structure, which includes a pair of of opposite side,.
Further, for being installed with the groove of impurity there are five being set at the top of single metal elastic slice.
Further, metal clips is plating nickel on surface or silver-plated sheet metal.
The utility model has the beneficial effects that light guiding film replaces transparent TPU material using high light transmission colloidal silica in practical application
Material, improves the overall brightness of the utility model, solves the problems, such as that TPU material light guiding film is easily turned to be yellow, by the way that optical microstructures are arranged
So that light source is projected from designated position, light source utilization rate is improved, the thickness of light guiding film avoids the thickness of light guiding film in 0.12-0.2mm
It spends thin and leads to metal clips rebound elastic force deficiency and can not be separated with PCB circuit board, the thickness of light guiding film is blocked up and influences
Handfeel of keys.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the top view of the utility model.
Description of symbols:
1- light guiding film, 2- print glue-line, the reflecting layer 3-, 4- spacer layer, 5- metal clips, 6- leaded light micro mechanism, 7-PCB electricity
Road plate, 8- entering light area, the output optical zone 9-, 10- side-emitting LED lamp, 11- gasket.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.
As shown in Figure 1 to Figure 2, a kind of high light transmission silica gel push-button light guiding film provided by the utility model comprising Dome piece
And the light guiding film 1 for covering Dome piece, the Dome piece include the reflecting layer 3 and partition that successively lamination is arranged from top to bottom
Layer 4PCB circuit board 7, the spacer layer 4 are arranged at intervals with several metal clips 5, the upper surface in the reflecting layer 3 and leaded light
Printing glue-line 2 is equipped between film 1, lower surface and the metal clips 5 in the reflecting layer 3 offset, and the bottom surface of the light guiding film 1 is right
Answer the position correspondence of metal clips 5 that rough optical microstructures 6 are distributed with.
In practical application, the utility model is assembled in the physical button bottom of the electronic products such as mobile phone or keyboard, metal elastic
The bottom of piece is installed on the pad of PCB circuit board, makes metal clips 5 and PCB circuit board 7 when user presses Dome piece
It connects, the periphery installed parallel of light guiding film 1 has several side-emitting LED lamps 10, and the light source that side-emitting LED lamp 10 is issued is injected
The entering light area 8 of light guiding film 1 so that by the reflecting layer 3 of 1 bottom surface of light guiding film, reenter light guiding film 1 and from leaded light after reflection
The output optical zone 9 of film 1 is projected, to improve light source utilization rate；The light that side-emitting LED lamp 10 is issued some through leaded light
Film 1 refracts to optical microstructures 6, changes optical path direction by optical microstructures 6, projects from the output optical zone of light guiding film 19, thus
Realize key-press backlight design.
The light guiding film 1 is high light transmission colloidal silica, replaces transparent TPU material by using high light transmission colloidal silica, improves this
The overall brightness of utility model solves the problems, such as that TPU material light guiding film is easily turned to be yellow, and maximizes reduction mobile phone backlight light source；Except this
Except, soft using light guiding film 1 made of high light transmission colloidal silica, handfeel of keys is good.Preferably, the thickness of light guiding film 1 exists
0.12-0.2mm be it is best, avoid the thickness of light guiding film 1 excessively thin and cause metal clips 5 spring back elastic force it is insufficient and can not be with PCB
Circuit board 7 separates, and the thickness of light guiding film 1 is blocked up and influences handfeel of keys.
In the present embodiment, optical microstructures 6 are distributed across the optics mesh lattice optics Microstructure Optics mesh of light guiding film
Dot matrix.
In practical application, the dot size close to side-emitting LED lamp 10 is small, and site spacing is big, far from the side-emitting LED
The dot size of lamp 10 is big, and site spacing is small；Preferably, for the smallest point of the optics mesh dot matrix away from for 0.03mm, site is big
Small is 0.01-0.02mm.
In the present embodiment, the reflecting layer 3 is equipped with several gaskets 11, and the middle part of gasket 11 and metal clips 5 is one by one
It is corresponding.In practical application, when manually pressing light guiding film 1, the gasket 11 pushes metal clips 5 to be electrically connected with PCB circuit board 7
Touching reduces pressing dynamics, increases the service life of metal clips 5.Preferably, the gasket 11 is circular gasket, and thickness exists
0.03-0.13mm makes the utility model more frivolous by optimizing its structure.
In the present embodiment, double-sided adhesive is posted in the lower surface in the reflecting layer 3, so that reflecting layer 3 and spacer layer 4 are tightly
Fitting, convenient for the installation of metal clips 5.
In the present embodiment, the spacer layer 4 is PET material, specifically, the spacer layer uses discontinuous structure, is used
PET material has good insulation performance, reinforces the protection to metal clips.
As shown in Figure 1, the longitudinal cross-section arch bridge shape of single metal elastic slice as shown in Fig. 2, single metal elastic slice 5 transverse cutting
Face is waist type structure, and the waist type structure includes that a pair of of opposite side is that the straight line being parallel to each other and another pair opposite side are parallel to each other
Camber line.
In the present embodiment, is set at the top of single metal elastic slice 5 there are five the groove for being installed with impurity, reduce impurity, dust
It falls into 5 bottom of metal clips and the contact with PCB circuit board 7 of metal clips 5 conducting is impacted.
In the present embodiment, metal clips 5 is plating nickel on surface or silver-plated sheet metal.
All technical characteristics in the present embodiment can be freely combined according to actual needs.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design
Within enclosing.
Claims (9)
1. a kind of high light transmission silica gel push-button light guiding film, it is characterised in that: the leaded light including Dome piece and for covering Dome piece
Film, the Dome piece includes the reflecting layer and spacer layer that successively lamination is arranged from top to bottom, if the spacer layer is arranged at intervals with
A dry metal clips, is equipped with printing glue-line between the upper surface and light guiding film in the reflecting layer, the lower surface in the reflecting layer with
Metal clips offsets, and the bottom surface of the light guiding film is distributed with multiple rough optical microstructures, single optical microstructures with
The position of single metal elastic slice is corresponding, and the light guiding film is high light transmission colloidal silica, and the thickness of the light guiding film is in 0.12-0.2mm.
2. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: optical microstructures are distributions
In the optics mesh dot matrix of light guiding film, away from for 0.03mm, site size is 0.01- for the smallest point of the optics mesh dot matrix
0.02mm。
3. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: if the reflecting layer is equipped with
The middle part of dry gasket, gasket and metal clips corresponds.
4. a kind of high light transmission silica gel push-button light guiding film according to claim 3, it is characterised in that: gasket is circular gasket,
Its thickness is in 0.03-0.13mm.
5. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: the following table in the reflecting layer
Face paste has double-sided adhesive.
6. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: the spacer layer is PET
Material.
7. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: the longitudinal direction of metal clips is cut
Face arch bridge shape, the transversal cross-section of single metal elastic slice are waist type structure, and the waist type structure includes that a pair of of opposite side is to be parallel to each other
Straight line and another pair opposite side be the camber line being parallel to each other.
8. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: at the top of single metal elastic slice
If there are five the grooves for being installed with impurity.
9. a kind of high light transmission silica gel push-button light guiding film according to claim 1, it is characterised in that: metal clips is surface plating
Nickel or silver-plated sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988006.8U CN208368403U (en) | 2018-06-25 | 2018-06-25 | A kind of high light transmission silica gel push-button light guiding film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988006.8U CN208368403U (en) | 2018-06-25 | 2018-06-25 | A kind of high light transmission silica gel push-button light guiding film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208368403U true CN208368403U (en) | 2019-01-11 |
Family
ID=64926717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820988006.8U Active CN208368403U (en) | 2018-06-25 | 2018-06-25 | A kind of high light transmission silica gel push-button light guiding film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208368403U (en) |
-
2018
- 2018-06-25 CN CN201820988006.8U patent/CN208368403U/en active Active
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