CN208011481U - A kind of back light source structure - Google Patents
A kind of back light source structure Download PDFInfo
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- CN208011481U CN208011481U CN201820621498.7U CN201820621498U CN208011481U CN 208011481 U CN208011481 U CN 208011481U CN 201820621498 U CN201820621498 U CN 201820621498U CN 208011481 U CN208011481 U CN 208011481U
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- pad
- light source
- source structure
- back light
- lead
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Abstract
The utility model provides a kind of back light source structure.FPC plates are set in the back light source structure, are electrically connected with the LED；The FPC plates include pad area and the lead district positioned at described pad area one end；Several pad groups are set on the pad area, and each pad group includes that two component pads are used to be electrically connected with the LED, and serial or parallel connection is arranged between the pad group；Positive terminal pad and negative terminal pad are set in the lead district, are electrically connected respectively with equipment power supply by welding cord lead, positive electrical wire lead and negative electrical wire lead are formed into a loop with several pad groups；Reinforcing plate is set in the lead district.PCB is substituted using FPC, in FPC plates end set positive electrical wire lead and negative electrical wire lead, is convenient for external connection.Reinforcing plate is set on FPC plates, ensures weld strength.Simplify glue frame structure, does not increase the thickness of back light source structure.
Description
Technical field
The utility model is related to circuit boards and backlight technology field, and in particular to a kind of back light source structure.
Background technology
Current a kind of back light source structure, as shown in Figure 1, circuit board 5a uses PCB, LED6a to be placed in the sides light guide plate 2a
Side is formed to shine.It includes collateral support part 80a and bottom support portion that glue frame 8a, the glue frame 8a, which is usually arranged, in the back light source structure
81a, the collateral support part 80a and the bottom support portion 81a form empty avoiding area 50a in the region for placing circuit board 5a, convenient for putting
It sets PCB and reduces component assembling interference.
When the pin of the circuit board 5a in back light source structure is electric wire, for the stability for ensureing after circuit welding, circuit
Plate 5a generally uses hardboard, such as PCB.But hardboard is thicker, thickness is generally 0.8mm, can increase backlight integral thickness, limit
The structure design of backlight processed.The back side thickness of light guide plate 2a includes the thickness of bottom support portion 81a, reflection in back light source structure
The thickness of the thickness and metal frame 7a of piece 4a.It is 0.6mm, the thickness of general bottom support portion 81a that glue frame 8a whole faces, which are molded most thin thickness,
The sum of thickness of degree and reflector plate 4a is not less than the thickness of circuit board 5a.In order not to increase the thickness of back light source structure, Ying Buzeng
Add the back side thickness of light guide plate 2a.
Utility model content
In view of the above-mentioned problems, the utility model is the technical issues of solution：
The utility model provides a kind of back light source structure, and positive electrical wire lead and negative electrical wire lead is arranged in FPC plates,
For being electrically connected with equipment power supply；Using relatively thin circuit board, realizes collocation cord lead and do not increase backlight thickness；
Reinforcing plate is arranged in FPC plates, reinforces weld strength；The thickness for reducing back light source structure, meets the needs of client is lightening to product.
In order to solve the above-mentioned technical problem, the solution of the utility model is：
A kind of back light source structure, including optical film, light guide plate, reflector plate, LED, glue frame and metal frame；The light guide plate packet
Include incidence surface, light-emitting surface and the back side；The optical film is placed in the light guide plate light-emitting surface, and the reflector plate is placed in the light guide plate
The back side, the LED are placed in light guide plate incidence surface side；The glue frame and the metal frame are as support construction.Described
FPC plates are set in back light source structure, are electrically connected with the LED；The FPC plates include pad area and be located at the pad area
The lead district of one end；Several pad groups are set on the pad area, each pad group include two component pads be used for
The LED is electrically connected, and serial or parallel connection is arranged between the pad group；Positive terminal pad and cathode are set in the lead district
Pad is electrically connected by welding cord lead and equipment power supply respectively, positive electrical wire lead and negative electrical wire lead with it is several
The pad group forming circuit；Reinforcing plate is set in the lead district.
As a kind of improvement of back light source structure provided by the utility model, the length dimension of the pad area is more than described
The length dimension of lead district.
As a kind of improvement of back light source structure provided by the utility model, the width dimensions of the lead district are more than described
The width dimensions of pad area.
As a kind of improvement of back light source structure provided by the utility model, the length dimension of the lead district is more than described
The length dimension of pad area.
As a kind of improvement of back light source structure provided by the utility model, the shape of the reinforcing plate and the pad area
Shape it is identical.
As a kind of improvement of back light source structure provided by the utility model, the reinforcing plate is PI materials.
As a kind of improvement of back light source structure provided by the utility model, the thickness of the FPC plates is 0.1mm.
As a kind of improvement of back light source structure provided by the utility model, whole face reinforcing plate is set on the FPC plates,
Thickness is 0.3mm.
As a kind of improvement of back light source structure provided by the utility model, between the metal frame and the light guide plate
Filler is set.
Compared with prior art, the utility model has the beneficial effects that：
PCB is substituted using FPC, reduces the space requirement for placing circuit board, realize collocation cord lead and does not increase backlight
Thickness.In FPC plates end set positive electrical wire lead and negative electrical wire lead, convenient for being electrically connected with equipment power supply.In FPC plates
Upper setting reinforcing plate ensures weld strength.Step between FPC plates and light guide plate can increase by one layer below reflector plate and fill out
Object is filled, the step problem to break off the base caused by support portion is not only compensated for, reduces the thickness of back light source structure while making glue frame
Structure simplifies, and solves the problems, such as glue frame bottom surface flatness and injection molding slimming.
Description of the drawings
Fig. 1 is a kind of back light source structure schematic diagram in the prior art；
Fig. 2 be the utility model proposes a kind of back light source structure schematic diagram；
Fig. 3 is the FPC plate structure schematic diagrams；
Fig. 4 is the reinforcing plate schematic diagram；
Fig. 5 be the utility model proposes another back light source structure schematic diagram.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.The examples of the embodiments are in attached drawing
In show, in which the same or similar labels are throughly indicated same or similar elements or with the same or similar functions
Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot understand
For limitations of the present invention.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
Calmly ", the terms such as " setting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can also be electrical connection；It can be directly connected, can also may be used also indirectly connected through an intermediary
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment 1
As shown in Fig. 2, its display the utility model proposes a kind of back light source structure 1, including optical film 3, light guide plate 2,
Reflector plate 4, LED6, glue frame 8 and metal frame 7；The light guide plate 2 includes incidence surface, light-emitting surface and the back side；The optical film 3 is set
In 2 light-emitting surface of the light guide plate, the reflector plate 4 is placed in 2 back side of the light guide plate, and the LED6 is placed in the light guide plate 2 and enters
Smooth surface side；The glue frame 8 and the metal frame 7 are used as support construction, the glue frame 8 to be placed in the metal frame 7.
It is further improved, the setting FPC plates 5 in the back light source structure 1, as shown in Figure 3.The FPC plates 5 include weldering
Panel 51 and lead district 52 positioned at 51 one end of the pad area.The thickness of the lead district 52 and the pad area 51 is
The thickness of 0.1mm, common pcb board are 0.8mm, and thickness is obviously reduced, so as to reduce the thickness of back light source structure.The lead
The length dimension in area 52 is less than the length dimension of the pad area 51, and the width dimensions of the lead district 52 are more than the pad area
51 width dimensions.The pad area 51 is in long strip type, sets up several pad groups 53, each weldering the pad area 51 is horizontal
Disk group 53 includes that two component pads are used to be electrically connected with the LED6, and serial or parallel connection is set between the pad group 53
It sets.Position of several pad groups 53 on the pad area 51 can depend on the circumstances.Further, the pad group 53
The spaced set on the pad area 51.Positive terminal pad 56 and negative terminal pad 57 are set in the lead district 52, led to respectively
It crosses welding cord lead to be electrically connected with equipment power supply, A indicates that anode, K indicate cathode.Positive electrical wire lead 55 and negative electrical wire
Lead 54 is formed into a loop with several pad groups 53.
It is further improved, as shown in figure 4, reinforcing plate 58 is arranged in the lead district 52, PI materials can be used.Institute
It is a kind of reinforced rubber sheet to state PI materials, and a kind of high-molecular organic material, high temperature resistant, flexibility is good, is the main material of soft board.Institute
The shape for stating reinforcing plate 58 is identical as the shape of the lead district 52, and convenient for being welded and fixed, weld strength can be improved.More preferably
Whole face reinforcing plate, thickness 0.3mm, it is ensured that weld strength is arranged in ground on the FPC plates 5.Compared to common pcb board
Thickness is 0.8mm, and thickness is also obviously reduced.
It is further improved, heat-conducting glue 10 is set between the FPC plates 5 and the metal frame 7.Heat-conducting glue is also known as led
Hot silica gel is the high molecular materials such as addition filler material, Heat Conduction Material based on organic silica gel.Heat-conducting glue has metal surface
Stronger adhesive force is not easy to peel off, and can play the role of being fixedly connected, and can replace traditional card and screw connecting mode.Make
With cooling effect is played to the FPC plates 5 in the process, performance and the service life of product are improved.
It is further improved, coats light screening material 9 in 7 outer surface of the metal frame, reduce spurious rays to display effect
Influence, shading glue or foam rubber can be used.
It is further improved, the reflector plate 4 is placed in the back side of the light guide plate 2, and the light reflection that bottom surface is exposed is returned to
In the light guide plate 2, the service efficiency of light is improved.The optical film 3 is placed in the front of the light guide plate 2 comprising diffusion barrier
32, lower bright enhancement film 31 and upper bright enhancement film 30.The diffusion barrier 32 primarily serves the effect for correcting diffusion angle, makes light radiation area
Increase, but reduces the luminous intensity of unit area to a certain extent.Add lustre under described 31 and upper bright enhancement film 30 be placed in the expansion
32 side of film is dissipated, the dispersed light that light source is sent out is assembled to positive direction, to improve display brightness.
Embodiment 2
As shown in figure 5, its display the utility model proposes a kind of improved back light source structure 1, including optical film 3, lead
Tabula rasa 2, reflector plate 4, LED6, glue frame 8 and metal frame 7；The light guide plate 2 includes incidence surface, light-emitting surface and the back side；The optics
Film 3 is placed in 2 light-emitting surface of the light guide plate, and the reflector plate 4 is placed in 2 back side of the light guide plate, and the LED6 is placed in the leaded light
2 incidence surface side of plate；The glue frame 8 and the metal frame 7 are used as support construction, the glue frame 8 to be placed in the metal frame 7.
The setting FPC plates 5 in the back light source structure 1, are electrically connected with the LED6.The FPC plates 5 include pad area 51
With the lead district 52 positioned at 51 one end of the pad area.Several pad groups 53, each pad group are set on the pad area 51
53 include that two component pads are used to be electrically connected with the LED6, and serial or parallel connection is arranged between the pad group 53.
Positive terminal pad 56 and negative terminal pad 57 are set in the lead district 52, electrically connected with equipment power supply by welding cord lead respectively
It connects, the positive electrical wire lead 55 and the negative electrical wire lead 54 are formed into a loop with several pad groups 53.Draw described
Reinforcing plate 58 is set in line area 52.
Due to using the slim FPC plates 5, while the bottom support portion 81a in Fig. 1 is eliminated, then in order to fill up
Step between the FPC plates 5 and the light guide plate 2 can increase by one layer of filler 40 below the reflector plate 4, as sponge,
Adhesive tape, reflector plate etc. not only compensate for the step problem removed caused by the bottom support portion 81a, reduce the backlight knot
The thickness of structure 1 makes the structure of the glue frame 8 simplify simultaneously, solves the problems, such as glue frame bottom surface flatness and injection molding slimming.
The metal frame 7 can be iron frame, aluminum alloy frame, can also be cheapest aluminium plating zinc plate.When use is aluminized
When zine plate makes metal frame, the filler such as sponge has elasticity, can the light guide plate 3, the reflector plate 4 be placed in it
On, since sponge is soft, the irregular minute protrusions on aluminium plating zinc plate surface are pierced into wherein without continuing up conduction, no
The light guide plate 3, the reflector plate 4 can be caused to damage, without additionally increasing cost while the case where avoid the occurrence of local bright spot.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (8)
1. a kind of back light source structure, including optical film, light guide plate, reflector plate, LED, glue frame and metal frame；The light guide plate includes
Incidence surface, light-emitting surface and the back side；The optical film is placed in the light guide plate light-emitting surface, and the reflector plate is placed in the guide-lighting backboard
Face, the LED are placed in light guide plate incidence surface side；The glue frame and the metal frame are as support construction；Its feature exists
In the setting FPC plates in the back light source structure are electrically connected with the LED；The FPC plates include pad area and are located at
The lead district of described pad area one end；Several pad groups are set on the pad area, and each pad group includes two elements
Pad is used to be electrically connected with the LED, and serial or parallel connection is arranged between the pad group；Anode is set in the lead district
Pad and negative terminal pad are electrically connected by welding cord lead with equipment power supply, positive electrical wire lead and negative electrical wire respectively
Lead is formed into a loop with several pad groups；Reinforcing plate is set in the lead district.
2. a kind of back light source structure according to claim 1, which is characterized in that the length dimension of the pad area is more than institute
State the length dimension of lead district.
3. a kind of back light source structure according to claim 1, which is characterized in that the width dimensions of the lead district are more than institute
State the width dimensions of pad area.
4. a kind of back light source structure according to claim 1, which is characterized in that the shape of the reinforcing plate and the pad
The shape in area is identical.
5. a kind of back light source structure according to claim 4, which is characterized in that the reinforcing plate is PI materials.
6. a kind of back light source structure according to claim 1, which is characterized in that the thickness of the FPC plates is 0.1mm.
7. a kind of back light source structure according to claim 1, which is characterized in that whole face reinforcing plate is set on the FPC plates,
Its thickness is 0.3mm.
8. a kind of back light source structure according to claim 1, which is characterized in that the metal frame and the light guide plate it
Between filler is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621498.7U CN208011481U (en) | 2018-04-27 | 2018-04-27 | A kind of back light source structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621498.7U CN208011481U (en) | 2018-04-27 | 2018-04-27 | A kind of back light source structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208011481U true CN208011481U (en) | 2018-10-26 |
Family
ID=63893325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820621498.7U Active CN208011481U (en) | 2018-04-27 | 2018-04-27 | A kind of back light source structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208011481U (en) |
-
2018
- 2018-04-27 CN CN201820621498.7U patent/CN208011481U/en active Active
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