CN206164969U - FPC and backlight - Google Patents

Abstract

The utility model discloses a FPC and backlight. This FPC is including the district of buckling, transition district and joining region, buckle to distinguish and paste the protection sheet that has one deck character cut in bas -relief shape. The bulge at protection sheet both ends can strengthen adhesion bond between protection sheet and the carrier, FPC's transition district with distance between the bulge at protection sheet both ends can with partly bounce when FPC buckles is decomposed, effectively avoids the dysfunction of the backlight that the bounce -back caused because FPC buckles.

Description

A kind of FPC and backlight

Technical field

The utility model is related to wiring board art, more particularly to a kind of FPC and backlight.

Background technology

In liquid crystal display module, the FPC of backlight needs to be connected with other elements after bending, and the bent area Jing of FPC Often can rebound.In prior art, in bent area it is designed as single layer structure typically by FPC to reduce its bounce, but this side Case has limitation, such as：Cannot when having to two-layer wiring, Multilayer Structure when single layer structure is easily torn, circuit is too many Do single layer structure etc.；Another kind of scheme is to paste the protection sheet of rectangle in bent area, but protection sheet is in the larger feelings of bounce When also can be upspring by FPC under condition and strut.

Utility model content

In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of FPC and backlight.The FPC by The protection sheet of one layer of concave shape is pasted on bent area, the protuberance at the protection sheet two ends can be by the part bounce-back of the FPC Power is decomposed, and can be prevented effectively from because FPC bends the dysfunction of the backlight that bounce-back is caused.

Technical problem to be solved in the utility model is achieved by the following technical programs：

A kind of FPC, including bent area, transition region and bonding pad, are pasted with the protection of one layer of concave shape on the bent area Paper.

Further, the width of protection sheet two ends protuberance is not less than 2mm.

Further, the length of protection sheet two ends protuberance is not less than 3mm.

Further, the protection sheet covers the length of the transition region not less than 2mm.

Further, the distance of the protuberance at the transition region and the protection sheet two ends is 1 ~ 2.5mm.

Further, the protection sheet is PET materials.

A kind of backlight, including above-mentioned FPC.

The utility model has the advantages that：The protuberance at the protection sheet two ends can strengthen the protection sheet and The distance between the protuberance at the bonding force between carrier, the transition region of the FPC and the protection sheet two ends can be by institute State a part of bounce when FPC bends to decompose, be prevented effectively from because FPC bends the dysfunction of the backlight that bounce-back is caused.

Description of the drawings

Fig. 1 is the schematic diagram of existing FPC；

The schematic diagram of the protection sheet that Fig. 2 is provided for the utility model；

The schematic diagram of the FPC that Fig. 3 is provided for the utility model.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and examples.

Embodiment one

As Figure 1-3, a kind of FPC, including bent area 1, transition region 2 and bonding pad 3, are pasted with the bent area 1 The protection sheet 4 of one layer of concave shape.

Wherein, the bent area 1 is the bending region of the FPC, and the transition region 2 is the routing region of the FPC and bending Transitional region between area 1 and bonding pad 3, the bonding pad 3 is the region of the FPC connecting elements.The FPC is on bent area 1 The protection sheet 4 of one layer of concave shape is pasted, the protection sheet 4 covers the whole bent area 1 and section transitions area 2 of the FPC, and glues The carrier being attached to when the FPC bends（The metal frame of such as backlight）On.

The protuberance 41 at the two ends of the protection sheet 4 can strengthen the bonding force between the protection sheet 4 and carrier, described Part when the distance between the transition region 2 of FPC and the protuberance 41 at the two ends of the protection sheet 4 C can bend the FPC Bounce is decomposed, and is prevented effectively from because FPC bends the dysfunction of the backlight that bounce-back is caused.

The width B of the two ends protuberance 41 of the protection sheet 4 is not less than 2mm, the length of the two ends protuberance 41 of the protection sheet 4 D is not less than 3mm, and the protection sheet 4 covers length A of the transition region 2 and is not less than 2mm, the transition region 2 and the protection sheet The protuberance 41 at 4 two ends apart from C be 1 ~ 2.5mm.

Length D and width B of the protection sheet 4 can make the protuberance 41 at the two ends of the protection sheet 4 possess sufficiently large Bonding force, the protuberance 41 for preventing two ends falls off because of FPC bending bounce-backs, and the transition region 2 and the protection sheet 4 The protuberance 41 at two ends can be that the protection sheet 4 provides space needed for decomposing the FPC bounces apart from C.

The protection sheet 4 is PET materials.

Embodiment two

A kind of backlight, including the FPC described in embodiment one.

Embodiment described above only expresses embodiment of the present utility model, and its description is more concrete and detailed, but and Therefore the restriction to the utility model the scope of the claims can not be interpreted as, as long as the institute in the form of equivalent or equivalent transformation The technical scheme of acquisition, all should fall within protection domain of the present utility model.

Claims (7)

1. a kind of FPC, including bent area, transition region and bonding pad, it is characterised in that one layer of character cut in bas-relief is pasted with the bent area The protection sheet of shape.

2. FPC according to claim 1, it is characterised in that the width of protection sheet two ends protuberance is not less than 2mm.

3. FPC according to claim 1, it is characterised in that the length of protection sheet two ends protuberance is not less than 3mm.

4. FPC according to claim 1, it is characterised in that the protection sheet covers the length of the transition region and is not less than 2mm。

5. FPC according to claim 1, it is characterised in that the protuberance at the transition region and the protection sheet two ends Distance is 1 ~ 2.5mm.

6. FPC according to claim 1, it is characterised in that the protection sheet is PET materials.

7. a kind of backlight, it is characterised in that including arbitrary described FPC in claim 1-6.