CN206754927U - One kind is added lustre to type LED backlight light-emitting device - Google Patents
One kind is added lustre to type LED backlight light-emitting device Download PDFInfo
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- CN206754927U CN206754927U CN201720347312.9U CN201720347312U CN206754927U CN 206754927 U CN206754927 U CN 206754927U CN 201720347312 U CN201720347312 U CN 201720347312U CN 206754927 U CN206754927 U CN 206754927U
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- white wall
- wall glue
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- pcb board
- lamp beads
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Abstract
One kind is added lustre to type LED backlight light-emitting device, the utility model is related to LED technology field；The surface of pcb board is provided with line layer；Described single side CSP LED lamp beads are welded on the surface of pcb board in array；Described optical lens is located at the top of single side CSP LED lamp beads, and cavity volume is formed between pcb board；Described single side CSP LED lamp beads include white wall glue, LED chip, packing colloid；Described LED chip is arranged on the inside of white wall glue, and the electrode surface of LED chip bottom flushes with the bottom of white wall glue, described packing colloid be arranged on around LED chip and white wall glue bowl in.Solve the problems, such as that the light emission rate that backlight module is brought using one side CSP LED light sources in prior art is low, its practicality is stronger, and the utility model has simple in construction, and it is reasonable to set, the advantages that low manufacture cost.
Description
Technical field
It the utility model is related to LED technology field, and in particular to one kind is added lustre to type LED backlight light-emitting device.
Background technology
CSP LED exempt from substrate as a reduced form LED encapsulating products because it possesses, without bonding line the characteristics of, have simultaneously
Its standby small volume, thickness is frivolous, can carry high power, the advantages such as size design flexibility is strong and be widely applied to backlight neck
Domain.
And CSP LED profiles have developed different structures and Morphological Features also with application end demand.Most originally CSP
It is to encapsulate form from traditional one side luminous PLCC and QFN to develop to the luminous CSP in five faces.The luminous CSP product light efficiencies in five faces
Height, light loss are few, nearly 180 ° of near field light emission corner connection, suitable for lighting field.But in field of backlights, lighted the saturating of CSP for five faces
Mirror difficult design, and the blue influence backlight effect of five face CSP bottoms leakage.For adapt to backlight application demand, expanded function structure,
CSP development has turned to the trend for reducing light-emitting area again, so as to the luminous CSP forms of one side occur.Realize on the market at present single
Face lights CSP more using the white wall glue of chip surrounding laying, is generally divided into white wall glue and is close to chip surrounding or white wall glue and chip
Surrounding has certain distance, and the white wall glue of described two situations sets form all to block CSP surroundings light extraction, and CSP fronts go out
Light efficiency can decline.Such a one side CSP LED light sources will be had a greatly reduced quality using light emission rate on backlight.Therefore, ability
Domain is badly in need of solving above-mentioned technical problem and defect present in prior art, and develops the one side hair that can increase light extraction efficiency
Light type CSP LED, then realize that one kind is added lustre to type LED backlight light-emitting device.
The content of the invention
The defects of the purpose of this utility model is to be directed to prior art and deficiency, there is provided a kind of simple in construction, design is closed
Reason, the type LED backlight light-emitting device that adds lustre to easy to use, solve backlight module in prior art and use one side CSP LED lights
The problem of light emission rate that source is brought is low, its practicality are stronger.
To achieve the above object, the technical solution adopted in the utility model is：It includes pcb board, single side CSP LEDs
Pearl, optical lens, line layer；The surface of pcb board is provided with line layer；Described single side CSP LED lamp beads are welded in array
On the surface of pcb board, and several single side CSP LED lamp beads pass through line layer serial or parallel connection；Described optical lens lens cover is set
In the top of single side CSP LED lamp beads, and cavity volume is formed between pcb board；Described single side CSP LED lamp beads include white
Wall glue, LED chip, packing colloid；Described white wall glue is in bowl shape, its bottom hollow out, and described LED chip is arranged on white wall
The inside of glue, and the electrode surface of LED chip bottom flushes with the bottom of white wall glue, described packing colloid is arranged on LED chip
In surrounding and white wall glue bowl.
Further, described pcb board is slim rectangle pcb board, and its material is aluminium base or FR-4 sheet materials.
Further, the material of described optical lens is polymethyl methacrylate.
Further, described packing colloid is fluorescent material and the mixture for encapsulating glue.
Further, described LED chip is flip-chip.
Further, the white wall glue is the white wall glue of epoxy resin or the white wall glue of silicones.
Further, angle α formed by described white wall glue bowl is 30-90 °.
Further, the surface of described packing colloid is provided with atomizing layer.
After said structure, the utility model has the beneficial effect that：One kind described in the utility model is added lustre to type LED backlight
Source light-emitting device, solve the problems, such as that the light emission rate that backlight module is brought using one side CSP LED light sources in prior art is low, in fact
Stronger with property, the utility model has simple in construction, and it is reasonable to set, the advantages that low manufacture cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is the structural representation of single side CSP LED lamp beads in the utility model.
Fig. 4 is the sectional view of single side CSP LED lamp beads in the utility model.
Description of reference numerals：
Pcb board 1, single side CSP LED lamp beads 2, optical lens 3, line layer 4, cavity volume 5, white wall glue 6, LED chip 7, envelope
Fill colloid 8, atomizing layer 8-1, electrode surface 9.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Referring to as Figure 1-Figure 4, the technical scheme that present embodiment uses is：It includes pcb board 1, single side
CSP LED lamp beads 2, optical lens 3, line layer 4；The surface of pcb board 1 is provided with line layer 4；Described single side CSP LEDs
Pearl 2 is welded on the surface of pcb board 1 in array, and several single side CSP LED lamp beads 2 are connected by line layer 4；Described
Optical lens 3 is located at the top of single side CSP LED lamp beads 2, and cavity volume 5 is formed between pcb board 1；Described single side
CSP LED lamp beads 2 include white wall glue 6, LED chip 7, packing colloid 8；Described white wall glue 6 is in bowl shape, its bottom hollow out,
Described LED chip 7 is arranged on the inside of white wall glue 6, and the electrode surface 9 of the bottom of LED chip 7 flushes with the bottom of white wall glue 6,
Described packing colloid 8 be arranged on around LED chip 7 and the white bowl of wall glue 6 in.
Further, described pcb board 1 is slim rectangle pcb board, and its material is aluminium base.
Further, the material of described optical lens 3 is polymethyl methacrylate.
Further, described packing colloid 8 is fluorescent material and the mixture for encapsulating glue.
Further, described LED chip 7 is flip-chip.
Further, epoxide-resin glue or silicon resin glue can be selected in the material of the white wall glue 6.
Further, angle α formed by the described white bowl of wall glue 6 is 60 °.
Further, the surface of described packing colloid 8 forms atomizing layer 8-1 by atomization process.
The operation principle of present embodiment：The blue light that its surrounding of LED chip 7 of single side CSP LED lamp beads 2 is sent swashs
The fluorescent material in packing colloid 8 around sending out, caused white light can be in the white skew wall of wall glue 6, fluorescent powder grain, the and of LED chip 7
Reflect, reflect repeatedly in colloid, eventually pass through the white skew wall of wall glue 6 export exiting surface, while the atomization process on the surface of packing colloid 8
So that the extraction of white light greatly promotes, and after diffusing reflection, light is more concentrated uniformly, in field of backlights, the matching of lens
To be more convenient.
After said structure, present embodiment has the beneficial effect that：One kind described in present embodiment is added lustre to
Type LED backlight light-emitting device, it is low to solve the light emission rate that backlight module is brought using one side CSP LED light sources in prior art
Problem, its practicality is stronger, and the utility model has simple in construction, and it is reasonable to set, the advantages that low manufacture cost.
It is described above, only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
The other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, it all should cover among right of the present utility model.
Claims (6)
- The type LED backlight light-emitting device 1. one kind is added lustre to, it is characterised in that：It includes pcb board, single side CSP LED lamp beads, light Learn lens, line layer；The surface of pcb board is provided with line layer；Described single side CSP LED lamp beads are welded on PCB in array The surface of plate, and several single side CSP LED lamp beads pass through line layer serial or parallel connection；Described optical lens is located at one side The top of type CSP LED lamp beads, and cavity volume is formed between pcb board；Described single side CSP LED lamp beads include white wall glue, LED chip, packing colloid；Described white wall glue is in bowl shape, its bottom hollow out, and described LED chip is arranged on white wall glue Inside, and the electrode surface of LED chip bottom flushes with the bottom of white wall glue, described packing colloid is arranged on around LED chip And in white wall glue bowl.
- The type LED backlight light-emitting device 2. one kind according to claim 1 is added lustre to, it is characterised in that：Described pcb board is Slim rectangle pcb board.
- The type LED backlight light-emitting device 3. one kind according to claim 1 is added lustre to, it is characterised in that：Described packaging plastic Body is fluorescent material and the mixture for encapsulating glue.
- The type LED backlight light-emitting device 4. one kind according to claim 1 is added lustre to, it is characterised in that：Described LED chip For flip-chip.
- The type LED backlight light-emitting device 5. one kind according to claim 1 is added lustre to, it is characterised in that：Described packaging plastic The surface of body is provided with atomizing layer.
- The type LED backlight light-emitting device 6. one kind according to claim 1 is added lustre to, it is characterised in that：The white wall glue is The white wall glue of epoxy resin or the white wall glue of silicones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720347312.9U CN206754927U (en) | 2017-04-05 | 2017-04-05 | One kind is added lustre to type LED backlight light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720347312.9U CN206754927U (en) | 2017-04-05 | 2017-04-05 | One kind is added lustre to type LED backlight light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754927U true CN206754927U (en) | 2017-12-15 |
Family
ID=60612144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720347312.9U Active CN206754927U (en) | 2017-04-05 | 2017-04-05 | One kind is added lustre to type LED backlight light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695424A (en) * | 2017-04-05 | 2018-10-23 | 深圳市斯迈得半导体有限公司 | One kind is added lustre to type single side light emitting-type CSPLED and its processing method |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| CN109578843A (en) * | 2018-11-21 | 2019-04-05 | 中山市木林森电子有限公司 | A kind of Novel LED light bar manufacture craft |
-
2017
- 2017-04-05 CN CN201720347312.9U patent/CN206754927U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695424A (en) * | 2017-04-05 | 2018-10-23 | 深圳市斯迈得半导体有限公司 | One kind is added lustre to type single side light emitting-type CSPLED and its processing method |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| CN109578843A (en) * | 2018-11-21 | 2019-04-05 | 中山市木林森电子有限公司 | A kind of Novel LED light bar manufacture craft |
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