CN105321758B - The construction of keyboard back light module - Google Patents
The construction of keyboard back light module Download PDFInfo
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- CN105321758B CN105321758B CN201410229621.7A CN201410229621A CN105321758B CN 105321758 B CN105321758 B CN 105321758B CN 201410229621 A CN201410229621 A CN 201410229621A CN 105321758 B CN105321758 B CN 105321758B
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Abstract
The present invention is about a kind of construction of keyboard back light module, the light shield layer of the backlight module, first glue-line, optical waveguide layer, second glue-line, reflecting layer and circuit board sequentially storehouse, and it is provided with multiple guide-lighting slotted eyes in optical waveguide layer, reflecting layer is provided with multiple reflection slotted eyes, and be in respectively relative shape, then at multiple guide-lighting slotted eyes of optical waveguide layer, multiple second glue-lines are respectively equipped between multiple reflection slotted eyes in reflecting layer, then multiple second glue-lines open up light source guide channel towards side respectively, and multiple guide-lighting slotted eyes of optical waveguide layer, multiple reflection slotted eyes and multiple second glue-lines in reflecting layer are aligned respectively to be assembled in above each illuminator of circuit board, and be pointed to for each light source guide channel of each second glue-line on the outside of the light source projects face of each illuminator, reach that the light source that can guide illuminator is concentrated towards predetermined direction, the purpose of projection.
Description
Technical field
The present invention provides a kind of construction of keyboard back light module, can espespecially guide multiple luminous on the circuit board of backlight module
Body is respectively equipped with the respectively towards the construction of predetermined direction projection source by the light shield layer of layered laminate, optical waveguide layer and reflection interlayer
One glue-line, the second glue-line, and for the light source projects face of illuminator of the second glue-line side provided with light source guide channel contraposition circuit board,
Reach the light source projects of guiding illuminator to the purpose of predetermined direction.
Background technology
With the development of Technology Times, various electronics, electric product have also been commonly utilized in life or the building ring of people
In border, regardless of whether the application of desktop computer or notebook computer etc., even more band give people it is convenient in life and work,
Such as application of the editing and processing of various word processings, photo or figure, bulletin, Email or internet etc., is all people's warp
The pattern often used, also causes the application of computer product more to popularize, and when carrying out various electronic homeworks through computer,
It all must be transmitted through keyboard to input required data one by one, handled for main frame according to the data that keyboard is inputted,
Then keyboard also turns into the indispensable instrument of computer operation, and in computer and various peripheral product all towards light, thin, short, small
Design concept makes, and is also promoted using function, especially the design of notebook computer, also reduces overall thickness, makes
The thickness of screen and keyboard also arrive amount is reduced, relatively also so that keyboard is by the large-scale framework of early stage, be changed into slim disk
The pattern in face, and set illuminator to be available for by the periphery of keyboard or keyboard transmitted ray, during for keyboard applications in keyboard
It can understand and distinguish the position of each button, and keyboard structure sequentially assembles light shield layer, optical waveguide layer and anti-in multiple button bottoms
Photosphere etc., using multiple illuminator projection sources are set on the circuit board of optical waveguide layer, is reflected through shading upwards by reflector layer
Layer covers local location, you can projected upwards towards each keyboard bottom position for light source aggregation, then can be saturating in surface of keyboard or periphery
Go out light, and the backlight reflecting layer being made up of light shield layer, optical waveguide layer and reflecting layer, will be multiple on flexible circuit board by optical waveguide layer
The light source that illuminator is projected is directed to whole guide-lighting aspect, then is reflected through reflecting layer towards light shield layer, and supplies light source
Multiple slotted eyes are projected upward on light shield layer, and light source is projected towards multiple buttons of installing above each slotted eye, but because of each groove
Hole periphery is open state, then light source easily from slotted eye towards the scattered projection of all directions, i.e., is disperseed the brightness of light source, also can not
Concentrate on predetermined direction, and the light formation detraction for causing backlight module to be projected to below each button of keyboard, and influence keyboard
Light source display effect be deteriorated, and many missings and puzzlement are still suffered from when actual use.
Therefore during light shield layer, optical waveguide layer and reflecting layer bottom populated circuit board in how solving the backlight module of keyboard,
The problem of each illuminator projection light disperses towards all directions, is difficult to concentrate on circuit board and puzzlement, and cause the intensity of light source to weaken,
Multiple keytop lights are influenceed to show the undesirable missing and trouble of situation, the relevant manufactures for being as engaged in the industry are desired most ardently
Study improved direction place.
The content of the invention
Inventor in view of it is above-mentioned the problem of with missing, be to collect related data, assess and consider via multi-party, and with from
The many years of experience that thing is accumulated in the industry, via constantly studying and change, begin to design it is such a can in backlight module optical waveguide layer,
Reflection interlayer offers light source guide channel using the second glue-line in side, and is pointed to illuminator on circuit board for light source guide channel
Light source projects face, the light source of illuminator can be directed to predetermined direction, concentrate and be projected to precalculated position, and multiple buttons are available for
The patent of invention that surface has the construction for the keyboard back light module for understanding light display effect is born.
The main object of the present invention is in that the light shield layer of the backlight module, the first glue-line, optical waveguide layer, the second glue-line, anti-
Penetrate layer and circuit board sequentially storehouse, and by light shield layer, the first glue-line, optical waveguide layer, the second glue-line, reflecting layer and circuit board sequentially heap
Stack is shaped to backlight module, and optical waveguide layer, reflecting layer are respectively equipped with relative multiple guide-lighting slotted eyes, multiple reflection slotted eyes, then at
Be respectively equipped with multiple second glue-lines between multiple guide-lighting slotted eyes of optical waveguide layer, multiple reflection slotted eyes in reflecting layer, then multiple second
Glue-line opens up light source guide channel towards side respectively, and multiple guide-lighting slotted eyes of optical waveguide layer, multiple reflection slotted eyes in reflecting layer and many
Individual second glue-line is aligned respectively to be assembled in above each illuminator of circuit board, and is aligned for each light source guide channel of each second glue-line
On the outside of the light source projects face of each illuminator, the purpose that the light source that can guide illuminator is concentrated towards predetermined direction, projected is reached.
The secondary objective of the present invention is in that multiple guide-lighting slotted eyes of the optical waveguide layer, multiple reflection slotted eyes in reflecting layer and the
The multiple light sources guide channel of two glue-lines, for covering outside each illuminator of circuit board, and makes each illuminator not expose optical waveguide layer
Each light-conductive hole outside, and each guide-lighting slotted eye, each reflection slotted eye and each light source guide channel be shaped to meet each illuminator respectively
Shape, rectangular-shaped, toroidal or geometry etc. can be shaped to respectively.
Another object of the present invention is in that this is located at optical waveguide layer, reflects the second glue-line of interlayer, plastic in a side
The light source guide channel of the shapes such as shape, 1/3 opening shape or 1/4 opening shape is opened for Full-open shape, semi-open shape, 1/2, and supplies second
The light source guide channel of layer is pointed to the light source projects face of illuminator on circuit board, the light source light court to guide illuminator projection
It is projected to predetermined direction below each button of keyboard, clear light display effect is presented.
Brief description of the drawings
Fig. 1 is three-dimensional exploded view of the invention.
Fig. 2 is the preferred embodiment top view of the second glue-line of the invention.
Fig. 3 is the various embodiments top view of the second glue-line of the invention.
Fig. 4 is the three-dimensional exploded view of present pre-ferred embodiments.
Fig. 5 makes the three-dimensional exploded view of an embodiment for the present invention.
Symbol description
1st, light shield layer
2nd, optical waveguide layer
20th, guide-lighting slotted eye
3rd, reflecting layer
30th, slotted eye is reflected
4th, circuit board
41st, illuminator
411st, light source projects face
5th, the first glue-line
50th, slotted eye
501st, guide-lighting groove
6th, the second glue-line
60th, interior slotted eye
601st, light source guide channel
7th, keyboard
71st, button
Embodiment
To reach above-mentioned purpose and effect, the technology used in the present invention means and its construction, the method implemented etc. are hereby painted
Figure is as follows with regard to its feature of presently preferred embodiments of the present invention elaborate and function, is understood completely with sharp.
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, be three-dimensional exploded view, the preferable implementation of the second glue-line of the present invention
Example top view, the various embodiments top view of the second glue-line, the three-dimensional exploded view of preferred embodiment, the solid point of another embodiment
Xie Tu, it is clear that the construction of keyboard back light module of the present invention shown in figure, including light shield layer 1, optical waveguide layer 2, reflection
Layer 3, circuit board 4, the first glue-line 5 and the second glue-line 6, wherein：
The light shield layer 1, optical waveguide layer 2, reflecting layer 3 and circuit board 4 etc. are sequentially laminated, and the surface of optical waveguide layer 2 is passed through provided with multiple
The guide-lighting slotted eye 20 worn, and the surface of reflecting layer 3 is then provided with reflection slotted eye 30, and each guide-lighting groove between light shield layer 1 and optical waveguide layer 2
Multiple first glue-lines 5 are provided with around hole 20, then are then provided with around each reflection slotted eye 30 between optical waveguide layer 2 and reflecting layer 3 many
Individual second glue-line 6, i.e., offer light source guide channel 601 in the side of interior slotted eye 60 1 of the second glue-line 6, recycles optical waveguide layer 2
The interior slotted eye 60 of each guide-lighting slotted eye 20, each reflection slotted eye 30 in reflecting layer 3 and each second glue-line 6, it is multiple on power circuit board 4 respectively
The contraposition of illuminator 41 is set, and each illuminator 41 of confession is placed in inside guide-lighting slotted eye 20 and do not exposed, and for each of each second glue-line 6
Light source guide channel 601, the light source projects face 411 for being pointed to each side of illuminator 41 respectively, and using the light shield layer of layered laminate
1st, optical waveguide layer 2 and reflecting layer 3, circuit board 4, the first glue-line 5 and the second glue-line 6 etc., group constitute the keyboard back light module of the present invention.
And above-mentioned it is located at the first glue-line 5 between light shield layer 1, optical waveguide layer 2, the between optical waveguide layer 2, reflecting layer 3
Two glue-lines 6, and can be assembled in the top of circuit board 4 of the base of keyboard 7, except light shield layer 1, optical waveguide layer 2 and reflecting layer 3 etc. can be carried out
Storehouse is combined, and also permeable first glue-line 5 is covered in around each guide-lighting slotted eye 20 of optical waveguide layer 2, the second glue-line 6 is covered in reflection
Around each reflection slotted eye 30 of layer 3, each 41 projection sources of illuminator can be avoided to scatter towards the outside, the light of each illuminator 41 is available for
411 projection sources of source projection surface towards the second glue-line 6 light source guide channel 601, be outwards projected to optical waveguide layer 2, light shield layer 1,
And then the direction of limiting light source projection, reach the purpose for controlling each 41 projection source directions of illuminator.
Opened also, above-mentioned second glue-line 6 is offered in the interior side of slotted eye 60 in open shape, semi-open shape, 1/2 opening shape, 1/3
Put shape or 1/4 opening shape etc., the light source guide channels 601 of various different open width patterns, the light to change each illuminator 41
411 projection sources of source projection surface towards different directions, different in width, different range or different zones etc., the effect outwards projected,
And avoiding light source from being scattered towards periphery, the light source projected for the light source projects face 411 of each illuminator 41 is towards the side of light source guide channel 601
To projection is concentrated, so that light source is projected to light shield layer 1 towards predetermined direction toward optical waveguide layer 2, have effects that to concentrate light source projects, with
The bottom of each button 71 for being projected to the top keyboard 7 of light shield layer 1 is concentrated, clear light display effect is presented.
Furthermore, above-mentioned first glue-line 5 can also be offered in the side of slotted eye 50 in open shape, semi-open shape, 1/2 open shape,
1/3 opens shape or 1/4 opening shape etc., the guide-lighting grooves 501 of various different open width patterns, to coordinate each second glue-line 6
Light source guide channel 601 set by relative direction position, and by 411, the light source projects face projection source of each illuminator 41 towards difference
Direction, different in width, different range or different zones etc., the effect outwards projected, and avoid light source from being scattered towards periphery, for each
The light source that the light source projects face 411 of illuminator 41 is projected is towards projection in guide-lighting groove 501, the direction set of light source guide channel 601, for light
Source is projected to light shield layer 1 towards predetermined direction toward optical waveguide layer 2, has effects that to concentrate light source projects, light shield layer 1 is projected to concentrate
The bottom of each button 71 of top keyboard 7, is presented clear light display effect.
In addition, each guide-lighting slotted eye 20 of the optical waveguide layer 2, each reflection slotted eye 30 in reflecting layer 3, the slotted eye of multiple first glue-lines 5
Interior slotted eye 60 of individual and the second glue-line 6 etc., can coordinate the profile of multiple illuminators 41 on circuit board 4, can be shaped to respectively more than 50
Rectangle, circle, it is oval or it is several close the shape such as shape or irregular shape hole pattern, and using each guide-lighting slotted eye 20,
Each reflection slotted eye 30, each slotted eye 50 and individual interior slotted eye 60 etc., are centered around the outside of each illuminator 41, for each illuminator 41 respectively
The light source projected by light source projects face 411, can be smoothly towards the direction of light source guide channel 601 of each second glue-line 6, be projected to respectively
Optical waveguide layer 2, light shield layer 1, and show light towards the lower section of each button 71 of keyboard 7.
Therefore the foregoing is merely illustrative of the preferred embodiments of the present invention, non-therefore the limitation present invention the scope of the claims, this
The light shield layer 1, optical waveguide layer 2, reflecting layer 3 of layered laminate, can be assembled on circuit board 4 by the construction of invention keyboard back light module, and
Multiple first glue-lines 5 are provided between the optical waveguide layer 2 of light shield layer 1, each guide-lighting slotted eye of optical waveguide layer 2 is pointed to for multiple first glue-lines 5
Around 20, multiple second glue-lines 6 are set between optical waveguide layer 2 and reflecting layer 3, then supply multiple second glue-lines 6 to be pointed to respectively instead
Penetrate around each reflection slotted eye 30 of layer 3, and the side of interior slotted eye 60 of multiple second glue-lines 6 is provided with light source guide channel 601, and for each
Light source guide channel 601 is pointed to the light source projects face 411 of each illuminator 41 of circuit board 4 respectively, can reach by multiple second glue
The light source guide channel 601 of layer 6, the light source projects face 411 of each illuminator 41 can be projected light predetermined direction and be projected to leaded light
Layer 2, the purpose of light shield layer 1, can pass through the light source guide channel 601 of each second glue-line 6 has different directions, the design of width, will
The light source of each illuminator 41 is projected towards not direction guiding, you can is concentrated projection for light source, therefore be may achieve the knot of foregoing advantages such as
Structure, device should all be covered by the present invention, such a simple modification and equivalent structure change, all should similarly be contained in the special of the present invention
In sharp scope.
The present invention is designed for the construction mainly for keyboard back light module, utilizes the light shield layer of layered laminate, optical waveguide layer
And reflecting layer, it is assembled on the circuit board of keyboard base, then multiple first glue-lines, optical waveguide layer is set in light shield layer and guide-lighting interlayer
And reflection interlayer sets multiple second glue-lines, and it is assembled on multiple illuminators of circuit board, and in multiple second glue-line sides
The design opened up provided with light source guide channel, in different in width, direction, and can reach and led using the light source guide channel of each second glue-line
Draw the light source of each illuminator towards predetermined direction projection be main key protection point, it is predetermined to be directed to light source through each second glue-line
Direction is projeced into optical waveguide layer, light shield layer, is the advantage for only making multiple illuminator institute's projection sources concentrate projection towards predetermined direction, then
Be available for the light source of each illuminator more concentrate be projected to light shield layer and below each button of keyboard clarity of illustration, only, with
The upper only presently preferred embodiments of the present invention, the scope of the claims that is non-therefore limiting to the present invention, therefore this hair is used such as
Simple modification and equivalent structure change carried out by bright specification and schema content, all should similarly be contained in the scope of the claims of the present invention
It is interior.
In summary, when being configured in practical application, implementation of above-mentioned keyboard back light module of the invention, is that can reach it really
Effect and purpose, therefore the present invention is really the excellent research and development of a practicality, and to meet the application requirement of patent of invention, Shen is proposed in accordance with the law
Please.
Claims (5)
1. a kind of construction of keyboard back light module, including light shield layer, optical waveguide layer, reflecting layer, positioned at light shield layer, guide-lighting interlayer the
One glue-line, positioned at optical waveguide layer, the second glue-line and circuit board of interlayer are reflected, and by light shield layer, the first glue-line, optical waveguide layer, second
Sequentially storehouse is shaped to backlight module for glue-line, reflecting layer and circuit board, it is characterised in that：
The optical waveguide layer, reflecting layer are respectively equipped with relative multiple guide-lighting slotted eyes, multiple reflection slotted eyes, multiple guide-lighting grooves of optical waveguide layer
It is respectively equipped with the second glue-line that light source guide channel is opened up towards side between hole, multiple reflection slotted eyes in reflecting layer, and optical waveguide layer
Multiple guide-lighting slotted eyes, multiple reflection slotted eyes in reflecting layer and multiple second glue-lines align each illuminator for being assembled in circuit board respectively
Top, and be pointed to for each light source guide channel of each second glue-line on the outside of the light source projects face of each illuminator.
2. the construction of keyboard back light module as claimed in claim 1, it is characterised in that：This is located at multiple guide-lighting grooves of optical waveguide layer
Multiple second glue-lines between hole, multiple reflection slotted eyes in reflecting layer, are opened in an edge forming Full-open shape, semi-open shape, 1/2
Shape, 1/3 opening shape or 1/4 open the light source guide channel of shape.
3. the construction of keyboard back light module as claimed in claim 1, it is characterised in that：Each light source guiding of the plurality of second glue-line
Well width is more than or less than the width of each illuminator on circuit board, and each light source guide channel is pointed in symmetrical expression or asymmetric
On the outside of the light source projects face of individual illuminator.
4. the construction of keyboard back light module as claimed in claim 1, it is characterised in that：It is multiple guide-lighting slotted eyes of the optical waveguide layer, anti-
Multiple reflection slotted eyes of layer and the multiple light sources guide channel of multiple second glue-lines are penetrated, for covering in each luminous external of circuit board
Portion, and each illuminator be located at optical waveguide layer each guide-lighting slotted eye inside, do not expose outside.
5. the construction of keyboard back light module as claimed in claim 4, it is characterised in that：Each guide-lighting slotted eye of the optical waveguide layer, reflection
Layer each reflection slotted eye and multiple second glue-lines each light source guide channel meet each luminous shape be shaped to rectangle or circle
Slotted eye shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229621.7A CN105321758B (en) | 2014-05-28 | 2014-05-28 | The construction of keyboard back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229621.7A CN105321758B (en) | 2014-05-28 | 2014-05-28 | The construction of keyboard back light module |
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| Publication Number | Publication Date |
|---|---|
| CN105321758A CN105321758A (en) | 2016-02-10 |
| CN105321758B true CN105321758B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410229621.7A Active CN105321758B (en) | 2014-05-28 | 2014-05-28 | The construction of keyboard back light module |
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| CN (1) | CN105321758B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584282B (en) * | 2019-02-19 | 2022-12-30 | 群光电能科技股份有限公司 | Backlight module applied to luminous keyboard |
| CN111834155B (en) * | 2020-01-02 | 2023-02-21 | 光宝电子(广州)有限公司 | Frame structure and keyboard device |
| CN114815380A (en) * | 2021-01-28 | 2022-07-29 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN116895484A (en) * | 2021-08-25 | 2023-10-17 | 淮安达方电子有限公司 | Backlight module and luminous key structure |
| TWI797730B (en) * | 2021-08-25 | 2023-04-01 | 達方電子股份有限公司 | Backlight moudule nad lightingkeyboard |
| TWI769917B (en) * | 2021-09-03 | 2022-07-01 | 茂林光電科技股份有限公司 | Thin direct type backlight module |
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| CN102252275A (en) * | 2011-05-24 | 2011-11-23 | 上海向隆电子科技有限公司 | Backlight module and keyboard thereof |
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| TW201409513A (en) * | 2012-08-27 | 2014-03-01 | Zippy Tech Corp | Illumination key board with light guide structure |
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| CN101241206A (en) * | 2007-02-07 | 2008-08-13 | 毅嘉科技股份有限公司 | Double layer light guide board light-guiding method and key structure using the double layer light guide board |
| CN201652194U (en) * | 2010-03-03 | 2010-11-24 | 苏州达方电子有限公司 | Shade, backlight module and light emitting keyboard |
| CN102252275A (en) * | 2011-05-24 | 2011-11-23 | 上海向隆电子科技有限公司 | Backlight module and keyboard thereof |
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| Publication number | Publication date |
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| CN105321758A (en) | 2016-02-10 |
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