CN202493967U - Light emitting strip, backlight component and display device - Google Patents
Light emitting strip, backlight component and display device Download PDFInfo
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- CN202493967U CN202493967U CN2012201465572U CN201220146557U CN202493967U CN 202493967 U CN202493967 U CN 202493967U CN 2012201465572 U CN2012201465572 U CN 2012201465572U CN 201220146557 U CN201220146557 U CN 201220146557U CN 202493967 U CN202493967 U CN 202493967U
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Abstract
The utility model provides a light emitting strip, a backlight component and a display device. The light emitting strip comprises a light emitting strip main body and a flexible circuit board, wherein the light emitting strip main body is a metal base printed circuit board; a light source is arranged on the metal base printed circuit board; the flexible circuit board and the light emitting strip main body have an integrated structure; the metal base printed circuit board comprises a metal substrate, a circuit layer and an insulating layer which is sandwiched between the metal substrate and the circuit layer; a circuit route which is connected to the light source is distributed on the circuit layer; and a connecting circuit is distributed on the flexible circuit board and is electrically connected with the corresponding circuit route on the circuit layer to form a conductive circuit from the light source to an external light source driver. According to the light emitting strip, a better radiating effect can be realized, and meanwhile, wiring design is convenient.
Description
Technical field
The utility model relates to the Display Technique field, is specifically related to a kind of light-emitting section, backlight assembly and display unit.
Background technology
Backlight is a kind of light source that is positioned at the display panels back, and its illumination effect will directly have influence on the visual effect of liquid crystal display.Display panels itself is not luminous, and display graphics or character are the results that it is modulated light.Backlight is provided with the position and can be divided into straight-down negative and side-light type according to light source.
Because the side-light type backlight assembly has the characteristic of light weight, slim, narrow frameization, low power consumption, meets market developing trend, is especially used widely in large-size ultra-thin LCD TV field.Side-light type backlight assembly structure mainly comprises LGP, light-emitting section, optical film material and structural member (backboard, framework or the like).The effect of LGP is that spot light or line source are converted into planar light source.Wherein, LGP is arranged on the side that LCD (LCD, Liquid Crystal Display) receives incident light usually, is used for spot light or line source are converted into planar light source; Optical film material is arranged between LGP and the LCD usually, and light source is arranged on the side of LGP, and end reflector plate is around in the rear side of LGP, is used for reflection ray.
Large scale side light type LED back light assembly of the prior art, the common heat dissipation problem that needs the led light source of consideration LGP lateral edges setting.Particularly for the large scale liquid crystal display, owing to the led light source that is provided with greater number, so heat dissipation problem becomes the major issue that it will solve.In addition, in ultra-thin equipment development, only be arranged in lateral edges to reduce device thickness owing to hope the LED light-emitting section, therefore adopt the LED light-emitting section of elongate in shape usually, this has caused difficulty for the outlet of light-emitting section.
The utility model content
In view of this, the purpose of the utility model provides a kind of light-emitting section, backlight assembly and display unit, improves the heat dissipation problem of light-emitting section.
For solving the problems of the technologies described above, the utility model provides scheme following:
A kind of light-emitting section comprises:
The light-emitting section main body, said light-emitting section main body is a metal base printed circuit board, said metal base printed circuit board is provided with light source;
FPC, said FPC and said metal base printed circuit board are integral structures; Wherein,
Said metal base printed circuit board comprises metal substrate, line layer and is folded in the insulating barrier between said metal substrate and the line layer, is laid with the circuit trace that is connected to said light source on the said line layer;
Be laid with connecting circuit on the said FPC, electrically connect between the corresponding electrical circuits cabling on said connecting circuit and the said line layer, to form the conducting wire of light source to the external light source driver.
Preferably, in the above-mentioned light-emitting section,
Said FPC comprises substrate film layers, copper foil layer and is folded in the adhesion agent layer between said substrate film and the copper foil layer that said connecting circuit is laid in the said copper foil layer.
Preferably, in the above-mentioned light-emitting section,
Said FPC links to each other with said light-emitting section main body, is specially:
Said FPC bonds together through lamination treatment with said light-emitting section main body.
Preferably, in the above-mentioned light-emitting section,
Said metal base printed circuit board is an aluminium base, and said light source is a light emitting diode.
The utility model also provides a kind of backlight assembly, comprises LGP, is positioned at the light-emitting section of said LGP side and is positioned at the backboard of said LGP below, and wherein said light-emitting section comprises:
The light-emitting section main body, said light-emitting section main body is a metal base printed circuit board, said metal base printed circuit board is provided with light source;
FPC, said FPC links to each other with said light-emitting section main body; Wherein,
Said metal base printed circuit board comprises metal substrate, line layer and is folded in the insulating barrier between said metal substrate and the line layer, is laid with the circuit trace that is connected to said light source on the said line layer;
Be laid with connecting circuit on the said FPC, electrically connect between the corresponding electrical circuits cabling on said connecting circuit and the said line layer, to form the conducting wire of light source to the external light source driver.
Preferably, in the above-mentioned backlight assembly,
Said FPC comprises substrate film layers, copper foil layer and is folded in the adhesion agent layer between said substrate film and the copper foil layer that said connecting circuit is laid in the said copper foil layer.
Preferably, in the above-mentioned backlight assembly,
Said FPC links to each other with said light-emitting section main body, is specially:
Said FPC bonds together through lamination treatment with metal base printed circuit board.
Preferably, in the above-mentioned backlight assembly,
Said metal base printed circuit board is an aluminium base, and said light source is a light emitting diode.
The utility model also provides a kind of display unit, comprises display panels, also comprises aforesaid backlight assembly.
Can find out from the above; The light-emitting section that the utility model provides, backlight assembly and display unit; Flexible PCB design through employing has the light-emitting section main body of metal base printed circuit board and is easy to connect up and handles has realized better radiating effect, has made things convenient for wires design simultaneously.
Description of drawings
The structural representation of a kind of light-emitting section that Fig. 1 provides for the utility model embodiment;
Fig. 2 is a light-emitting section main body described in the utility model embodiment and the sketch map that is connected of FPC;
Fig. 3 is that another of light-emitting section main body and FPC is connected sketch map among the utility model embodiment;
The structural representation of the backlight assembly that Fig. 4 provides for the utility model embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing and specific embodiment that the utility model is described in detail below.
Please with reference to Fig. 1, a kind of light-emitting section that the utility model embodiment provides, its structure is as shown in Figure 1, and this light-emitting section comprises:
Light-emitting section main body 11, said light-emitting section main body 11 specifically can be metal base printed circuit board, metal base printed circuit board is provided with a plurality of light sources 12;
FPC 13, said FPC 13 links to each other with said light-emitting section main body 11.
Concrete, metal base printed circuit board can adopt aluminium base or other metal or alloy substrates as substrate layer, and above-mentioned light source 12 can be a light emitting diode, and a common light-emitting section is provided with a plurality of light emitting diodes.
Among Fig. 1, FPC 13 is from an end of light-emitting section main body 11, and the direction that is parallel to said light-emitting section main body 11 is extended.Certainly, FPC 13 can also be through being connected with light-emitting section main body 11 with light-emitting section main body 11 perpendicular modes.
Further with reference to Fig. 2; The said light-emitting section main body 11 of present embodiment comprises metal substrate 111, line layer 113 and is folded in the insulating barrier 112 between said metal substrate 111 and the line layer 113, is laid with the circuit trace (not shown drive circuit) that is connected to said light source 12 on the said line layer 113.
On said FPC 13, be laid with connecting circuit (not shown connecting circuit), electrically connect between the corresponding electrical circuits cabling on said connecting circuit and the said line layer, to form the conducting wire of light source to the external light source driver.
Because light-emitting section main body 11 has adopted metal substrate 111 as substrate layer, utilize metal to have the good characteristics of thermal conductivity the heat that light source 12 produces is dispelled the heat in the said structure, can obtain better radiating effect.
Please continue with reference to Fig. 2, said FPC 13 comprises substrate film layers 131, copper foil layer 133 and is folded in the adhesion agent layer 132 between said substrate film 131 and the copper foil layer 133 that said connecting circuit is laid in the said copper foil layer 133.
In addition, said structure adopts the leading-out terminal of FPC 13 as light-emitting section main body 11, and FPC one end is connected to peripheral light source drive, and the other end is connected to light-emitting section main body 11, has realized that light source drive is to the conductive path between the light source.FPC 13 has the following advantages as leading-out terminal:
1) in the prior art leading-out terminal of light-emitting section main body usually through pad or connector are set; To draw the conducting wire; Obviously pad and connector need take bigger space; When light-emitting section restricted width (being generally several millimeters) and leading-out terminal have more conductive path again, adopt the design of pad or connector will obviously increase wiring difficulty (can only go out 2～4 circuits usually) and plate thickness.And being electrically connected between FPC 13 and the light-emitting section main body 11 in the present embodiment; Can form through the conducting wire that forms in the PCB plate-making process is connected; Thereby pad or connector need be set at the leading-out terminal of light-emitting section main body 11, therefore conveniently connect up and help plate thickness and control.
2) simultaneously, FPC 13 has advantages such as thickness is little and bent, and this will further facilitate wiring and help plate thickness control.
To sum up, can find out that present embodiment need in the lighting field and large scale display unit of heat dissipation design to be specially adapted to.For example; Usually hope can realize zone control light in the large scale display unit, promptly adopts the light-emitting section of greater number, can carry out independent control to lighting of light source on each light-emitting section; The quantity of the leading-out terminal of light-emitting section will increase at this moment, and the wiring difficulty also obviously increases thereupon.Adopt the said structure of present embodiment will help the zone to control the realization of light function.
Further specify below the light-emitting section main body 11 described in the present embodiment is how to process and how to interconnect with FPC 13.
In the present embodiment, light-emitting section main body 11 can be that independent blanking is processed with FPC 13, drive circuit on the wherein said light-emitting section main body 11 and the connecting circuit on the said FPC 13 with all be to form through electroplating again etching earlier.Usually, can electroplate and form the layer of metal film, on metallic film, etch pattern again, obtain concrete circuit with reservation shape.After etching is accomplished, can also be through covering the epiphragma treatment process, the holding circuit structure.
After obtaining FPC 13 and light-emitting section main body 11 respectively; Can one side of light-emitting section main body 11 and a side of FPC 13 be bonded together through lamination treatment; Specifically can be that respective layer links together; That is, the side of said substrate film layers 131 is connected with the side of said metal substrate 111; The side of said adhesion agent layer 132 is connected with the side of said insulating barrier 112; And the side of said copper foil layer 133 is connected with the side of said line layer 113.
As shown in Figure 3, when lamination treatment, can the gong plate be carried out in the soft or hard junction 14 of FPC 13 and light-emitting section main body 11 and handle, so that faying face becomes coarse, help improving adhesive strength; Through lamination treatment, the side of FPC 13 and the side of light-emitting section main body 11 are combined closely then, make the connecting circuit 1331 of the correspondence on drive circuit 1131 and the said FPC 13 on the said light-emitting section main body 11 form electrical connections.And then the junction is hindered weldering handle, make metallic circuit be able to insulation; Carry out follow-up surface treatment (like cleaning, drying etc.) again, can accomplish the connection between FPC 13 and the light-emitting section main body 11.
Present embodiment also provides the backlight assembly in a kind of LCD, and is as shown in Figure 4, and this backlight assembly comprises LGP 15, be positioned at the light-emitting section 10 of said LGP side and be positioned at the backboard 16 of said LGP below.Wherein, the concrete structure of light-emitting section 10 repeats no more with reference to preceding text and Fig. 1～shown in Figure 3 here.
Present embodiment also provides a kind of display unit, and this display unit comprises display panels, also comprises backlight assembly shown in Figure 4.Said display unit can be any product or parts that need backlight assembly such as LCD, LCD TV, mobile phone, panel computer.
In sum; The light-emitting section that present embodiment provides, backlight assembly and display unit; Because the flexible PCB design of having adopted the light-emitting section main body with metal base printed circuit board and being easy to connect up and handling has realized better radiating effect, has made things convenient for wires design simultaneously.
Claims (9)
1. a light-emitting section is characterized in that, comprising:
The light-emitting section main body, said light-emitting section main body is a metal base printed circuit board, said metal base printed circuit board is provided with light source;
FPC, said FPC and said metal base printed circuit board are integral structures; Wherein,
Said metal base printed circuit board comprises metal substrate, line layer and is folded in the insulating barrier between said metal substrate and the line layer, is laid with the circuit trace that is connected to said light source on the said line layer;
Be laid with connecting circuit on the said FPC, electrically connect between the corresponding electrical circuits cabling on said connecting circuit and the said line layer, to form the conducting wire of light source to the external light source driver.
2. light-emitting section as claimed in claim 1 is characterized in that,
Said FPC comprises substrate film layers, copper foil layer and is folded in the adhesion agent layer between said substrate film and the copper foil layer that said connecting circuit is laid in the said copper foil layer.
3. light-emitting section as claimed in claim 2 is characterized in that,
Said FPC links to each other with said light-emitting section main body, is specially:
Said FPC and said light-emitting section main body bond together through lamination treatment.
4. light-emitting section as claimed in claim 2 is characterized in that,
Said metal substrate is an aluminium base, and said light source is a light emitting diode.
5. backlight assembly comprises LGP, is positioned at the light-emitting section of said LGP side and is positioned at the backboard of said LGP below, it is characterized in that said light-emitting section comprises:
The light-emitting section main body, said light-emitting section main body is a metal base printed circuit board, said metal base printed circuit board is provided with light source;
FPC, said FPC and said light-emitting section main body are integral structures; Wherein,
Said metal base printed circuit board comprises metal substrate, line layer and is folded in the insulating barrier between said metal substrate and the line layer, is laid with the circuit trace that is connected to said light source on the said line layer;
Be laid with connecting circuit on the said FPC, electrically connect between the corresponding electrical circuits cabling on said connecting circuit and the said line layer, to form the conducting wire of light source to the external light source driver.
6. want 5 described backlight assemblies like right, it is characterized in that,
Said FPC comprises substrate film layers, copper foil layer and is folded in the adhesion agent layer between said substrate film and the copper foil layer that said connecting circuit is laid in the said copper foil layer.
7. backlight assembly as claimed in claim 6 is characterized in that,
Said FPC links to each other with said light-emitting section main body, is specially:
Said FPC and said light-emitting section main body bond together through lamination treatment.
8. backlight assembly as claimed in claim 6 is characterized in that,
Said metal substrate is an aluminium base, and said light source is a light emitting diode.
9. a display unit comprises display panels, it is characterized in that, also comprises like each described backlight assembly of claim 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201465572U CN202493967U (en) | 2012-03-31 | 2012-03-31 | Light emitting strip, backlight component and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201465572U CN202493967U (en) | 2012-03-31 | 2012-03-31 | Light emitting strip, backlight component and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493967U true CN202493967U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201465572U Expired - Lifetime CN202493967U (en) | 2012-03-31 | 2012-03-31 | Light emitting strip, backlight component and display device |
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| Country | Link |
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| CN (1) | CN202493967U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197448A (en) * | 2013-01-08 | 2013-07-10 | 友达光电股份有限公司 | Transmission substrate, display device using the same, and method for assembling display device |
| CN104110605A (en) * | 2013-04-16 | 2014-10-22 | 深圳金立翔视效科技有限公司 | LED module and display screen applying same |
| TWI561898B (en) * | 2014-01-28 | 2016-12-11 | Radiant Opto Electronics Corp | Light source module and lamp |
| CN111197705A (en) * | 2018-11-20 | 2020-05-26 | 上海祁仁光电科技有限公司 | Ultra-fine LED flexible luminous strip |
| CN115586671A (en) * | 2022-09-28 | 2023-01-10 | 苏州华星光电技术有限公司 | Backlight module and display device |
-
2012
- 2012-03-31 CN CN2012201465572U patent/CN202493967U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197448A (en) * | 2013-01-08 | 2013-07-10 | 友达光电股份有限公司 | Transmission substrate, display device using the same, and method for assembling display device |
| CN103197448B (en) * | 2013-01-08 | 2015-07-08 | 友达光电股份有限公司 | Transmission substrate, display device using the same, and method for assembling display device |
| CN104110605A (en) * | 2013-04-16 | 2014-10-22 | 深圳金立翔视效科技有限公司 | LED module and display screen applying same |
| TWI561898B (en) * | 2014-01-28 | 2016-12-11 | Radiant Opto Electronics Corp | Light source module and lamp |
| CN111197705A (en) * | 2018-11-20 | 2020-05-26 | 上海祁仁光电科技有限公司 | Ultra-fine LED flexible luminous strip |
| CN115586671A (en) * | 2022-09-28 | 2023-01-10 | 苏州华星光电技术有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
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| CX01 | Expiry of patent term |