CN204986647U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN204986647U CN204986647U CN201520560307.7U CN201520560307U CN204986647U CN 204986647 U CN204986647 U CN 204986647U CN 201520560307 U CN201520560307 U CN 201520560307U CN 204986647 U CN204986647 U CN 204986647U
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- CN
- China
- Prior art keywords
- guide plate
- hole
- light guide
- breach
- backlight assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
The utility model relates to a backlight module, include: the first photomask, light guide plate and the PCB board that superpose and set up in proper order, be equipped with the light source on the PCB board, be equipped with on the light guide plate with the through -hole that the light source matches, set up on the lateral wall of through -hole and run through the breach on two surfaces of light guide plate, the degree of depth of breach is less than distance between the relative surface of through -hole, and the breach with the light source interval sets up, first photomask covers the through -hole reaches the breach. The position that above -mentioned backlight module had not only guaranteed the relative light source of light guide plate makes the light guide plate be difficult for rocking. And when making the light source wear to establish the through -hole, it is easier to order equipment and dismantlement are more convenient, improve the speed of equipment, and production efficiency, and also light guide plate or PCB board are changed, convenient maintenance to in a poor light the changeeing of order. First photomask makes backlight module that the surface is more level and more smooth, and can avoid from the through -hole light leak.
Description
Technical field
The utility model relates to electronics industry, particularly relates to a kind of backlight assembly.
Background technology
In the electronics industry, backlight is a kind of form of illumination, for increase in low lighting environment illuminance or increase computer monitor, liquid crystal screen brightness.Backlight has multiple light emitting species, such as backlight type and front smooth formula, and its difference is that backlight type is from side or irradiates behind, and as the term suggests front light is then irradiated from the front.
But backlight not easily replacement and removal in the market.
Utility model content
Based on this, be necessary to provide a kind of easy dismounting and replacing, can enhance productivity, the backlight assembly of convenient for maintaining.
A kind of backlight assembly, comprising: superpose the first photomask of setting, light guide plate and pcb board successively,
Described pcb board is provided with light source;
Described light guide plate is provided with the through hole mated with described light source, the sidewall of described through hole is offered and runs through the surperficial breach of described light guide plate two, the degree of depth of described breach is less than the distance between the relative surface of described through hole, and described breach and described light source interval are arranged;
Described first photomask hides described through hole and described breach.
Wherein in an embodiment, the cross section of described through hole is rectangle, and the cross section of described breach is semicircle.
Wherein in an embodiment, described breach is connected with the long limit of described through hole, and the radius of described breach is less than the minor face of described through hole.
Wherein in an embodiment, described light guide plate has chamfering towards the region that described breach is being offered on surface of described pcb board.
Wherein in an embodiment, the size of described first photomask and the size of described through hole and described breach match.
Wherein in an embodiment, described backlight assembly also comprises the second photomask, and described second photomask superposition is arranged on described first photomask, and the second photomask described in described first photomask cover part.
Wherein in an embodiment, described light guide plate is triangle, and described light source is three, respectively corresponding three top corner regions being arranged at leg-of-mutton described light guide plate.
Wherein in an embodiment, described backlight assembly also comprises the cable be connected with described pcb board, and is arranged on the label on described cable.
Wherein in an embodiment, described backlight assembly also comprises silver reflection box, the sheathed described light guide plate of described reflection box, and wraps up the side of described light guide plate.
Wherein in an embodiment, described backlight assembly also comprises the double faced adhesive tape and base stock that arrange with described pcb board laminated structure.
Above-mentioned backlight assembly not only ensure that the position of light guide plate facing light sources, makes light guide plate not easily rock.And when making light source wear through hole, be more prone to, thus order is assembled and dismounting is more convenient, improves the speed of assembling, and production efficiency, also make backlight more easily change light guide plate or pcb board, convenient for maintaining.First photomask makes backlight assembly surface more smooth, and can avoid from through hole light leak.
Light guide plate has chamfering towards the region that breach is being offered on surface of pcb board, and the auxiliary sheathed light source of light guide plate, improves the fluency of assembling further.
It is more flexible that multiple first photomask makes backlight assembly use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the backlight assembly of the utility model one preferred embodiment;
Fig. 2 is the explosive view of the backlight assembly shown in Fig. 1.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present utility model understand more thorough comprehensively.
It should be noted that, when element is called as " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe concrete embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Such as, a kind of backlight assembly, it comprises: superpose the first photomask of setting, light guide plate and pcb board successively, described pcb board is provided with light source; Described light guide plate is provided with the through hole mated with described light source, the sidewall of described through hole is offered and runs through the surperficial breach of described light guide plate two, the degree of depth of described breach is less than the distance between the relative surface of described through hole, and described breach and described light source interval are arranged; Described first photomask hides described through hole and described breach.
As shown in Figures 1 and 2, it is respectively the structural representation of the backlight assembly 10 of the utility model one preferred embodiment, and explosive view.
Backlight assembly 10, comprise: superpose the first photomask 100 of setting, light guide plate 200, pcb board 300, double faced adhesive tape 400 and base stock 500 successively, also comprise the silver reflection box 600 of sheathed light guide plate 200, the cable 700 be arranged on pcb board 300, and be arranged at the label 800 on cable 700.Double faced adhesive tape 400 is for by the easily changeable position being pasted on needs, and base stock 500 is for the protection of double faced adhesive tape 400.According to actual needs, double faced adhesive tape 400 and base stock 500 can be omitted, also can omit cable 700 and label 800.
Wherein, pcb board 300 is provided with light source 310 and components and parts (not shown), and in the present embodiment, light source 310 is LED.Light guide plate 200 is provided with the through hole 210 with light source 310 or Matching components, the sidewall of through hole 210 is offered and runs through the surperficial breach 220 of light guide plate 200 two.Also can be understood as, light guide plate 200 offers irregular opening.Further, the degree of depth of breach 220 is less than the distance between the relative surface of through hole 210, and the degree of depth of breach 220 can be understood as, and breach 220 offers the maximum distance between the sidewall of breach 220 to through hole 210.Breach 220 and light source 310 interval are arranged.Reflection box 600 wraps up the side of light guide plate 200.First photomask 100 hides through hole 210 and breach 220.
When assembling above-mentioned backlight assembly 10, make the light source 310 on pcb board 300 wear through hole 210, because the size of through hole 210 and light source 310 match, therefore ensure that the position of light guide plate 200 facing light sources 310, make light guide plate 200 not easily rock.Because breach 220 and light source 310 interval are arranged, the side of light source 310 is made not abut with the sidewall of breach 220 or through hole 210, but reserve certain distance, therefore, when making light source 310 wear through hole 210, be more prone to, thus order is assembled and dismounting is more convenient, improve the speed of assembling, and production efficiency, also make backlight more easily change light guide plate 200 or pcb board 300.First photomask 100 makes backlight assembly 10 surface more smooth, and can avoid from through hole 210 light leak.
In the present embodiment, the cross section of through hole 210 is rectangle, and the cross section of breach 220 is semicircle.Further, breach 220 is connected with the long limit of through hole 210, also can be understood as, and the maximum opening part of breach 220 width is connected with through hole 210.The radius of breach 220 is less than the minor face of through hole 210.In other embodiments, breach 220 also can be other shapes, and such as, the cross section of breach 220 is triangle, trapezoidal etc.
The cross section of breach 220 is semicircle, makes it more easily process on the one hand, and when making light guide plate 200 and pcb board 300 assemble on the other hand, adjustment space is larger.In addition, the radius of breach 220 is less than the minor face of through hole 210, makes breach 220 while guarantee assembles light guide plate 200 glibly, reduces area as much as possible, avoids the relative pcb board 300 of light guide plate 200 to rock.
In order to improve the fluency of assembling further, light guide plate 200 has chamfering towards the region that breach 220 is being offered on surface of pcb board 300.Also can be understood as, chamfering is positioned at the periphery that light guide plate 200 arranges breach 220 region, and namely breach 220 is in horn-like.Or breach 220 is greater than the cross section of breach 220 away from light source 310 towards the cross section in light source 310 direction.Like this, the auxiliary sheathed light source 310 of light guide plate 200, improves the fluency of assembling further.
The end face of light source 310 is less than or equal to the degree of depth of through hole 210 to the distance of pcb board 300.In the present embodiment, the end face of light source 310 is less than the degree of depth of through hole 210 to the distance of pcb board 300.Like this, make light guide plate 200 more smooth on the one hand, the first photomask 100 is conveniently set, improve the utilization rate of the light of light emitting source 310 on the other hand.
The size of the first photomask 100 and the size of through hole 210 and breach 220 match.Also can be understood as, the size that size and breach 220 and the through hole 210 of the first photomask 100 combine is mated.Further, the quantity of the first photomask 100 is identical with the quantity of through hole 210, and each first photomask 100 all hides the through hole 210 corresponding with it and breach 220.In other embodiments, the quantity of the first photomask 100 also can be greater than the quantity of through hole 210, now, except first photomask 100 corresponding with through hole 210, remaining photomask covers the remainder region of light guide plate 200, matches with the demand of the light-emitting zone and user that make light guide plate 200.Such as shown in Fig. 1, wherein shadow region is light-emitting zone, and remainder is covered by the first photomask.
It is more flexible that multiple first photomask 100 makes backlight assembly 10 use.
In the present embodiment, light guide plate 200 is triangle, and light source 310 is three, respectively corresponding three top corner regions being arranged at leg-of-mutton light guide plate 200.Like this, make the luminescence of light guide plate 200 more even.
It is pointed out that backlight assembly 10 can also comprise the second photomask.Wherein, the second photomask superposition is arranged on the first photomask 100, the second photomask covering part light guide plate 200, and, the first photomask 100 cover part second photomask.Also can be understood as, the second photomask part and the first photomask 100 abut against, and part abuts against with light guide plate 200.
Like this, make the first photomask 100 more stably be arranged on light guide plate 200, and ensure that the first photomask 100 obtains shaded effect.In addition, the second photomask adds the use flexibility of backlight assembly 10 equally.
In addition, backlight assembly 10 can also comprise reflectance coating, diffusion barrier etc.Wherein, reflectance coating is positioned at the side that light guide plate 200 arranges pcb board 300, and diffusion barrier is positioned at the side that light guiding film arranges photomask.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a backlight assembly, is characterized in that, comprising: superpose the first photomask of setting, light guide plate and pcb board successively,
Described pcb board is provided with light source;
Described light guide plate is provided with the through hole mated with described light source, the sidewall of described through hole is offered and runs through the surperficial breach of described light guide plate two, the degree of depth of described breach is less than the distance between the relative surface of described through hole, and described breach and described light source interval are arranged;
Described first photomask hides described through hole and described breach.
2. backlight assembly according to claim 1, is characterized in that, the cross section of described through hole is rectangle, and the cross section of described breach is semicircle.
3. backlight assembly according to claim 2, is characterized in that, described breach is connected with the long limit of described through hole, and the radius of described breach is less than the minor face of described through hole.
4. backlight assembly according to claim 1, is characterized in that, described light guide plate has chamfering towards the region that described breach is being offered on surface of described pcb board.
5. backlight assembly according to claim 1, is characterized in that, the size of described first photomask and the size of described through hole and described breach match.
6. backlight assembly according to claim 1, is characterized in that, described backlight assembly also comprises the second photomask, and described second photomask superposition is arranged on described first photomask, and the second photomask described in described first photomask cover part.
7. backlight assembly according to claim 1, is characterized in that, described light guide plate is triangle, and described light source is three, respectively corresponding three top corner regions being arranged at leg-of-mutton described light guide plate.
8. backlight assembly according to claim 1, is characterized in that, described backlight assembly also comprises the cable be connected with described pcb board, and is arranged on the label on described cable.
9. backlight assembly according to claim 1, is characterized in that, described backlight assembly also comprises silver reflection box, the sheathed described light guide plate of described reflection box, and wraps up the side of described light guide plate.
10. backlight assembly according to claim 1, is characterized in that, described backlight assembly also comprises the double faced adhesive tape and base stock that arrange with described pcb board laminated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560307.7U CN204986647U (en) | 2015-07-29 | 2015-07-29 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560307.7U CN204986647U (en) | 2015-07-29 | 2015-07-29 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986647U true CN204986647U (en) | 2016-01-20 |
Family
ID=55121015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560307.7U Expired - Fee Related CN204986647U (en) | 2015-07-29 | 2015-07-29 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986647U (en) |
-
2015
- 2015-07-29 CN CN201520560307.7U patent/CN204986647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Baoan District manhole Street Furong Furong Industrial Zone Shenzhen city Guangdong province 518000 Road No. thirty-ninth Building 2 floor Patentee after: SHENZHEN HONGBRIGHT OPTOELECTRONICS Corp.,Ltd. Address before: Baoan District manhole Street Furong Furong Industrial Zone Shenzhen city Guangdong province 518000 Road No. thirty-ninth Building 2 floor Patentee before: SHENZHEN HONGBRIGHT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210729 |