CN208804506U - A kind of matrix form light source lamp bar - Google Patents
A kind of matrix form light source lamp bar Download PDFInfo
- Publication number
- CN208804506U CN208804506U CN201821719807.0U CN201821719807U CN208804506U CN 208804506 U CN208804506 U CN 208804506U CN 201821719807 U CN201821719807 U CN 201821719807U CN 208804506 U CN208804506 U CN 208804506U
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- light source
- incidence hole
- lamp bar
- matrix form
- multiple spot
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Abstract
A kind of matrix form light source lamp bar, including printed circuit board, many places are equipped with luminescence component on printed circuit board, and luminescence component includes matrix light source, multiple spot incidence hole lens；The matrix light source includes at least two independent point light sources, and corresponding multiple spot incidence hole lens inner wall is equipped with incidence hole corresponding with point light source quantity.A kind of matrix form light source lamp bar provided by the utility model, not only can be improved packaging efficiency, while also reducing cost.
Description
Technical field
The utility model relates to lamp bar, especially a kind of matrix form light source lamp bar is carried on the back as TV, display, advertisement screen etc.
Radiant uses.
Background technique
In the field of backlights such as TV, display, advertisement screen, for promoted screen-picture consistency and the uniformity can use it is more
Root lamp bar is as backlight, every lamp bar light source containing many places, but every place's light source only one point light source；With LED semiconductor packages
The promotion of power and light efficiency carries out assembling using more lamp bars and forms direct type backlight assembly to realize that backlighting scheme leads to light
Flux is more than needed, is especially embodied in large screen display；In addition, using more lamp bars as backlight not only in production operation
It is erroneous for installation, PCB is also wasted significantly.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of matrix form light source lamp bars, can reduce backlight assembly
The usage quantity of middle lamp bar, and meet screen intensity.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of matrix form light source lamp bar, including printed circuit board, many places are equipped with luminescence component on printed circuit board, and shine group
Part includes matrix light source, multiple spot incidence hole lens；The matrix light source includes at least two independent point light sources, and corresponding multiple spot enters
Unthreaded hole lens inner wall is equipped with incidence hole corresponding with point light source quantity.
The point light source arrangement mode is linear, rectangle, circle, babysbreath.
The point light source is LED light-emitting semi-conductor components.
The inner surface that incidence hole is corresponded on the multiple spot incidence hole lens is concave surface, corresponds to light on multiple spot incidence hole lens
The outer surface in hole is convex surface.
Multiple spot incidence hole lens lower end is fixed by suspension column and printed circuit board.
It is located at luminescence component two sides on the printed circuit board and is equipped with heat sink, is realized by increasing heat dissipation area more preferable
Heat dissipation.
A kind of matrix form light source lamp bar of the utility model, has following technical effect that
1), multiple matrix form light sources are set in a lamp bar, such a lamp bar can meet screen intensity requirement, section
Save PCB dosage.
2), by the way that multiple spot incidence hole lens corresponding with matrix form light source are arranged, light facula area is increased out, the party is made
Case screen uniformity gets a promotion.
3) it, will need to install more lamp bars originally to be changed to only use one, can be shortened the lamp bar set-up time in this way, save life
It produces manpower and assembles cost.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the top view (band heat sink) of the utility model.
Fig. 2 is the main sectional view of the utility model.
Fig. 3 is the distribution figure (the first) of matrix light source in the utility model.
Fig. 4 is the distribution figure (second) of matrix light source in the utility model.
Fig. 5 is the distribution figure (the third) of matrix light source in the utility model.
In figure: printed circuit board 1, luminescence component 2, matrix light source 3, multiple spot incidence hole lens 4, incidence hole 5, heat sink 6,
Suspension column 7.
Specific embodiment
As shown in Figs. 1-5, a kind of matrix form light source lamp bar, is mainly used in the feelings installed with straight-down negative mounting means
Condition.Matrix form light source lamp bar includes printed circuit board 1, printed circuit board 1 multiple luminescence components 2 are connected in different ways or
It is connected in parallel, and structural support function is provided.Printed circuit board 1 is successively arranged insulating layer, line layer and substrate from top to bottom.Absolutely
Edge layer is to realize that the plate face of circuit board insulate；Line layer namely layers of copper realize the electrical connection of multiple luminescence components 2；Substrate can
It is thermally conductive to realize for FR4 (epoxy glass-fiber-fabric substrate) plate, it can also be the aluminum substrate etc. with insulating layer.Printed circuit board 1
Upper many places are equipped with luminescence component 2, and luminescence component 2 includes matrix light source 3, multiple spot incidence hole lens 4；The matrix light source 3 includes
At least two independent point light sources, point light source can be LED light-emitting semi-conductor components.Point light source can be used linear, rectangle, circle, expire
TianXing or any other formal distribution.Point light source is electrically connected after being packaged into pad with printed circuit board 1.Multiple spot incidence hole lens
4 cover on the top of matrix light source 3 and lower end is fixed by suspension column 7 and printed circuit board 1.It is recessed to be covered with spiral on 7 bottom end end face of suspension column
Slot, in this way when being sticky on printed circuit board 1 with glue, the bonding area of suspension column 7 and printed circuit board 1 increases, and adheres patch
It is more firm.
By the way that multiple matrix light sources are arranged in a lamp bar, multiple point light sources are arranged in every place's matrix light source, in office in this way
Screen intensity can be met as backlight only with a lamp bar in meaning size backlighting scheme.
Incidence hole 5 corresponding with point light source quantity is equipped in corresponding 4 inner wall of multiple spot incidence hole lens.By in every place's square
Array light source collocation multiple spot incidence hole lens use the uniformity that display picture can be improved.
The inner surface of incidence hole 5 is corresponded on the multiple spot incidence hole lens 4 for arc-shaped concave, on multiple spot incidence hole lens 4
The outer surface of corresponding incidence hole 5 is arc convex.By the way that arc-shaped concave, arc convex is arranged, so that the light that light source issues first passes through
It carries out polymerization through arc convex again after arc-shaped concave scattering to shine, so that the region that luminous flux illuminates required for concentrating on, is improved
Service efficiency.
It is located at 2 two sides of luminescence component on the printed circuit board 1 and is equipped with heat sink 6, heat sink 6 is plate, passes through increasing
Heat dissipation area realizes more preferable heat dissipation.
In addition, due to lens suspension column 7 and pcb board to hold power not strong, be easy to fall off, in order to guarantee lens fix tightly
It leans on, helicla flute can be set on 7 bottom face of suspension column, after glue upper in this way, the contact area of suspension column 7 and pcb board is also bigger, bonding
It is stronger.Helicla flute is gradually deepened from suspension column edge to suspension column axle center.Since product manufacturing process is first by glue spots on PCB
Then lens are sticked, the predeterminated position for putting glue is suspension column center, so glue concentrates on center, design in this way is conducive to
Glue Quick uniform flows and coheres entire suspension column bottom.
Operation principle and process:
1), PCB design: centered on default light source point, array set-point light-source encapsulation pad (is herein device
The positive and negative anodes pad of part, can be series-parallel by route according to practical application), bond pad arrangement mode be rectangle, and between pad etc. between
Away from.Point light source quantity is increased and decreased according to backlight illumination demand in the process；By matrix light source connection in many places in single lamp bar
(series/parallel) realizes electrical communication.
2) corresponding multiple spot incidence hole optical lens, is adapted to according to matrix light source midpoint quantity of light source.
3), by PCB print solder paste, point light source is sticked, Reflow Soldering is fixed.
4) optical aperture of multiple spot incidence hole optical lens, is corresponded into point light source, and is incited somebody to action in the socle dispensing of lens bottom
Lens are soldered on PCB i.e. completion matrix form light source lamp bar.
5) heat sink, can be increased on PCB above according to application environment.
Claims (5)
1. a kind of matrix form light source lamp bar, it is characterised in that: including printed circuit board (1), many places are equipped on printed circuit board (1)
Luminescence component (2), luminescence component (2) include matrix light source (3), multiple spot incidence hole lens (4)；The matrix light source (3) includes
At least two independent point light sources, corresponding multiple spot incidence hole lens (4) inner wall are equipped with incidence hole corresponding with point light source quantity
(5).
2. a kind of matrix form light source lamp bar according to claim 1, it is characterised in that: the point light source arrangement mode is line
Property, rectangle, circle, babysbreath.
3. a kind of matrix form light source lamp bar according to claim 1, it is characterised in that: the point light source is that LED shines partly
Conductor assembly.
4. a kind of matrix form light source lamp bar according to claim 1, it is characterised in that: the multiple spot incidence hole lens (4)
The inner surface of upper corresponding incidence hole (5) is concave surface, and the outer surface that incidence hole (5) is corresponded on multiple spot incidence hole lens (4) is convex surface；
Multiple spot incidence hole lens (4) lower end is fixed by suspension column (7) and printed circuit board (1).
5. a kind of matrix form light source lamp bar according to claim 1, it is characterised in that: the printed circuit board (1) is upper
Heat sink (6) are equipped in luminescence component (2) two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719807.0U CN208804506U (en) | 2018-10-23 | 2018-10-23 | A kind of matrix form light source lamp bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719807.0U CN208804506U (en) | 2018-10-23 | 2018-10-23 | A kind of matrix form light source lamp bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208804506U true CN208804506U (en) | 2019-04-30 |
Family
ID=66239198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821719807.0U Active CN208804506U (en) | 2018-10-23 | 2018-10-23 | A kind of matrix form light source lamp bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208804506U (en) |
-
2018
- 2018-10-23 CN CN201821719807.0U patent/CN208804506U/en active Active
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