CN202282908U

CN202282908U - Backlight FPC (flexible printed circuit) structure

Info

Publication number: CN202282908U
Application number: CN2011204399879U
Authority: CN
Inventors: 严幸生
Original assignee: DONGGUAN NEW ORIENTAL PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: DONGGUAN NEW ORIENTAL PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2011-11-09
Filing date: 2011-11-09
Publication date: 2012-06-20
Anticipated expiration: 2021-11-09

Abstract

The utility model relates to a backlight FPC (flexible printed circuit) structure which is arranged on a PCB (printed circuit board). The FPC structure consists of segmented FPC boards, specifically rectangular FPC boards and bending FPC boards, wherein pads are respectively arranged at connection parts of the rectangular FPC boards and the bending FPC boards for connecting the rectangular FPC boards and the bending FPC boards together; pad groups are uniformly distributed on the rectangular FPC boards; each pad group consists of two pads with a certain gap; and an LED lamp is welded between two pads; pad groups are connected by circuit lines; a positive wire and a negative wire which are parallel to each other are arranged on each bending FPC board. With the adoption of the backlight FPC structure, splitting and arrangement can be easily realized on the circuit board; a connecting circuit is designed on the back of each rectangular FPC board, and the rectangular FPC board and the bending FPC board are welded into a whole by the pad connection mode; when type setting is carried out on the same area, the separate FPC boards with the number double or above that of integrated FPC boards can be arranged, so that the cost is effectively reduced.

Description

A kind of FPC structure of backlight

Technical field

The utility model relates to a kind of backlight, particularly relates to a kind of segmented FPC structure of backlight.

Background technology

Backlight belongs to the photoelectric display technical field, from the related parts of back-to-front: aluminum alloy frame, reflector plate, glue frame, LGP, diffusion sheet, down brightening piece, go up brightening piece, anti-dazzling screen, and the LED luminescence component on limit then.Development and Market competitionization along with the LED-backlit source; Cost requirement to product requires increasingly high; And the cost of FPC estimates that according to the composing area present FPC structure is an integral type, on same area, can not arrange the FPC quantity of maximum; Increased the production cost of enterprise virtually, row goes up more quantity FPC in the same area in order to make.

The FPC knot of prior art and the arrangement of FPC on circuit board are like Fig. 5, shown in 6, and existing FPC structure is integral type T type FPC, when on circuit board, arranging, have a large amount of spaces blank, have wasted resource, have increased entreprise cost.

The utility model content

The purpose of the utility model is to overcome the deficiency of prior art, and a kind of FPC structure of backlight is provided, and makes the FPC quantity of arranging on the same circuit board increase, and has reduced cost.

In order to achieve the above object, the technical scheme that the utility model adopts is: a kind of FPC structure of backlight, be arranged on the pcb board, and described FPC structure is a segmented FPC plate, and is made up of rectangle FPC plate and bending FPC plate.

Rectangle FPC plate is respectively arranged with pad with bending FPC plate junction, welds together through pad.Be evenly distributed with the pad group on the rectangle FPC plate, the pad group is made up of two tool pads at regular intervals, is welded with the LED lamp between two pads.Connect through circuitry lines between the adjacent pad group.

Bending FPC plate is provided with two parallel positive wires and negative wire.

Compared with prior art, the beneficial effect of the utility model is: be segmented FPC plate with the FPC structural design the first,, and be made up of rectangle FPC plate and bending FPC plate, be easy on circuit board, realize splitting and arranging; The second,, adopt the pad ways of connecting that rectangle FPC plate and bending FPC plate are welded into a whole at the reverse side design connection line of rectangle FPC plate; Three, integral type and split type FPC are set type in same area, split type FPC can arrange one times or above quantity than integral type FPC more, effectively reduces cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the rectangle FPC plate structure sketch map of the utility model;

Fig. 3 is the bending FPC plate structure sketch map of the utility model;

Fig. 4 is the arrangement sketch map of FPC on circuit board of the utility model;

Fig. 5 is the FPC structural representation of prior art;

Fig. 6 is the arrangement sketch map of FPC on circuit board of prior art.

Embodiment

The purport of the utility model is to overcome the deficiency of prior art, and a kind of FPC structure of backlight is provided, particularly a kind of FPC segmented LED-backlit source.The assembly of the utility model and common backlight basic identical.From the related parts of back-to-front: aluminum alloy frame, reflector plate, glue frame, LGP, diffusion sheet, down brightening piece, go up brightening piece, anti-dazzling screen, and the LED luminescence component on limit then.Along with the development and the Market competitionization in LED-backlit source, increasingly high to the cost requirement requirement of product, the utility model is directed against one of the critical piece of backlight FPC and carries out structural improvement, thereby reaches the requirement that reduces cost.The cost of FPC is according to the estimation of composing area, and row goes up more quantity FPC in the same area in order to make, and FPC is divided into two sections yi word pattern FPC to integral type T type, has improved composing quantity greatly, thereby has reduced cost.

Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that the technical characterictic and the advantage of the utility model are carried out more deep annotation.

Like Fig. 1,2, shown in 3, a kind of FPC structure of backlight is arranged on the pcb board, and described FPC structure is a segmented FPC plate, and is made up of rectangle FPC plate 1 and bending FPC plate 2.

Rectangle FPC plate 1 is respectively arranged with pad with bending FPC plate 2 junctions, welds together through pad.Be evenly distributed with pad group 3 on the rectangle FPC plate 1, pad group 3 is made up of two tool pads 4 at regular intervals, is welded with LED lamp 6 between two pads 4.Connect through circuitry lines 5 between the adjacent pad group 3.

Bending FPC plate 2 is provided with two parallel positive wires 7 and negative wire 8.

Fig. 3 compares with Fig. 5, and Fig. 3 is a segmented FPC structure, and Fig. 5 is an integral type FPC structure.When the FPC structure of utilizing Fig. 3 and Fig. 5 is arranged; The rank results of Fig. 3 is as shown in Figure 4, and the arrangement architecture of Fig. 5 is as shown in Figure 6, and Fig. 4 has increased by one times than the FPC arrangement amount of Fig. 6; And the reverse side at rectangle FPC plate among Fig. 4 designs connection line; Adopt the pad ways of connecting that rectangle FPC plate and bending FPC plate are welded into a whole, effectively increased FPC and got number of the arrangement, reduced cost.

The content of mentioning in the foregoing description is not to be the qualification to the utility model, and under the prerequisite of the inventive concept that does not break away from the utility model, and any conspicuous replacement is all within the protection range of the utility model.

Claims

1. the FPC structure of a backlight is arranged on the pcb board, it is characterized in that: described FPC structure is a segmented FPC plate, and is made up of rectangle FPC plate (1) and bending FPC plate (2).

2. the FPC structure of backlight according to claim 1 is characterized in that: described rectangle FPC plate (1) is respectively arranged with pad with bending FPC plate (2) junction, welds together through pad.

3. the FPC structure of backlight according to claim 2; It is characterized in that: be evenly distributed with pad group (3) on the described rectangle FPC plate (1); Pad group (3) is made up of two tool pads at regular intervals (4), is welded with LED lamp (6) between two pads (4).

4. the FPC structure of backlight according to claim 3 is characterized in that: connect through circuitry lines (5) between the described adjacent pad group (3).

5. according to the FPC structure of each described backlight in the claim 1～4, it is characterized in that: described bending FPC plate (2) is provided with two parallel positive wires (7) and negative wire (8).