CN208110198U - A kind of FPC backlight - Google Patents
A kind of FPC backlight Download PDFInfo
- Publication number
- CN208110198U CN208110198U CN201721218646.2U CN201721218646U CN208110198U CN 208110198 U CN208110198 U CN 208110198U CN 201721218646 U CN201721218646 U CN 201721218646U CN 208110198 U CN208110198 U CN 208110198U
- Authority
- CN
- China
- Prior art keywords
- protection sheet
- plastic plate
- circuit board
- flexible circuit
- fpc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structure Of Printed Boards (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model relates to FPC back light source technique fields, in particular a kind of FPC backlight, including device noumenon, device noumenon includes flexible circuit board and the protection sheet for protecting flexible circuit board, flexible circuit board includes the bent area for folding, bonding pad for wiring and the transition region that is arranged between bent area and bonding pad, protection sheet offers connecting groove close to the side of transition region, the two sides of connecting groove form protrusion, protection sheet is provided with plastic plate close to one end of connecting groove, folding line groove is connected between plastic plate and protection sheet, close to the both ends of protrusion, adhesion has fixation adhesive tape to plastic plate respectively.The FPC backlight, it is limited by part of the plastic plate to bending, the problem of plastic plate offsets the screen resilience generated after bending simultaneously, and is supported by fixation adhesive tape, the dysfunction of backlight caused by the screen resilience generated after being bent with effective solution flexible circuit board.
Description
Technical field
The utility model relates to FPC back light source technique field, specially a kind of FPC backlight.
Background technique
Flexible circuit board is that have height reliability using polyimides or polyester film as one kind made of substrate, excellent
Flexible printed circuit.Have the characteristics that Distribution density is high, light-weight, thickness is thin, bending is good.Backlight is to be located at liquid crystal
A kind of light source of display back, its illumination effect will directly influence LCD MODULE visual effect.Liquid crystal display
It itself does not shine, it shows figure or the result that it modulates light.In liquid crystal display die set, the FPC of backlight is needed
It is connect after bending with other elements, and the bent area of FPC is often rebounded, and in the prior art, is generally set FPC in bent area
It is calculated as single layer structure, to reduce its bounce, but this scheme has limitation, such as：Single layer structure is easy to be torn, route
Single layer structure etc. can not be done when having to two-layer wiring, Multilayer Structure when too many；Another scheme is to paste square in bent area
The protection sheet of shape.
According to a kind of FPC and backlight of Chinese utility model Publication No. CN206164969U.The FPC includes bending
Area, transition region and bonding pad are pasted with the protection sheet of one layer of concave shape on the bent area.The protrusion at the protection sheet both ends
The bonding force between the protection sheet and carrier, the protrusion of the transition region of the FPC and the protection sheet both ends can be enhanced
A part of bounce when the distance between portion can bend the FPC is decomposed, and effectively avoids causing since FPC bends rebound
Backlight dysfunction.
But the patent also has room for improvement below：When long-time in use, the viscosity of adhesion glue can weaken, Jin Jintong
The adhesion of the protrusion at overprotection paper both ends is not sufficient to solve rebound when FPC bending.In consideration of it, it is proposed that a kind of FPC
Backlight.
Utility model content
The purpose of this utility model is to provide a kind of FPC backlights, when solving mentioned above in the background art long
Between in use, the viscosity of adhesion glue can weaken, be not sufficient to solve FPC only by the adhesion of the protrusion at protection sheet both ends curved
The problem of rebound when folding.
To achieve the above object, the utility model provides the following technical solutions：
A kind of FPC backlight, including device noumenon, described device ontology include flexible circuit board and described for protecting
The protection sheet of flexible circuit board, the flexible circuit board include the bent area for folding, the bonding pad for wiring and set
The transition region between the bent area and the bonding pad is set, the protection sheet is offered close to the side of the transition region
Connecting groove, the two sides of the connecting groove form protrusion, and the protection sheet is set close to one end of the connecting groove
It is equipped with plastic plate, folding line groove is connected between the plastic plate and the protection sheet, the plastic plate is close to the protrusion
Adhesion has fixation adhesive tape respectively at both ends.
Preferably, the width of the protrusion is at least 2mm, and length is at least 3mm.
Preferably, the distance of the protrusion at the transition region and the protection sheet both ends is 1~2.5mm.
Preferably, the bent area is completely covered in the protection sheet.
Preferably, the transition zone portion is covered in the plastic plate.
Preferably, the connecting sewing between the bent area and the transition region and the folding line groove are located at same straight line
On.
Preferably, the plastic plate is rotatablely connected by the folding line groove and the protection sheet.
Compared with prior art, the beneficial effects of the utility model：The FPC backlight, by plastic plate to the portion of bending
It point is limited, while plastic plate offsets the screen resilience generated after bending, and is supported by fixation adhesive tape, it can be with
The problem of dysfunction of backlight caused by the screen resilience generated after the bending of effective solution flexible circuit board.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model flexible circuit board structure schematic diagram；
Fig. 3 is the utility model protection sheet structural schematic diagram.
In figure：1, device noumenon；2, flexible circuit board；21, bent area；22, bonding pad；23, transition region；3, protection sheet；
31, connecting groove；32, protrusion；33, plastic plate；34, folding line groove；35, fixation adhesive tape.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：
A kind of FPC backlight, including device noumenon 1, device noumenon 1 is including flexible circuit board 2 and for protecting flexibility
The protection sheet 3 of circuit board 2, flexible circuit board 2 include the bent area 21 for folding, the bonding pad 22 for wiring and setting
Transition region 23 between bent area 21 and bonding pad 22, protection sheet 3 offer connecting groove close to the side of transition region 23
31, the two sides of connecting groove 31 form protrusion 32, and protection sheet 3 is provided with plastic plate close to one end of connecting groove 31
33, folding line groove 34 is connected between plastic plate 33 and protection sheet 3, adhesion has plastic plate 33 respectively close to the both ends of protrusion 32
Fixation adhesive tape 35, the width of 3 both ends protrusion 32 of protection sheet are at least 2mm, and length is at least 3mm, transition region 23 and protection sheet
The distance of the protrusion 32 at 3 both ends is 1~2.5mm, and bent area 21 is completely covered in protection sheet 3, the covering of 23 part of transition region
In plastic plate 33, the connecting sewing between bent area 21 and transition region 23 is located on the same line with folding line groove 34, plasticity
Plate 33 is rotatablely connected by folding line groove 34 and protection sheet 3, and flexible circuit board 2 pastes the protection of one layer of concave shape on bent area 21
Paper 3, protection sheet 3 cover entire bent area 21 and section transitions area 23, and are pasted onto the backlight when flexible circuit board 2 bending
In the metal frame in source, the protrusion 32 at 3 both ends of protection sheet can enhance the bonding of the metal frame of the protection sheet 4 and backlight
Power, when bending, by plastic plate 33 as flexible circuit board 2 is bent together, plastic plate 33 uses composite paperboard material
It is made, has hardness high, the good characteristic of plasticity effect, after bending well, plastic plate 33 and 2 bending part of flexible circuit board are close
It fits together, the part isolated with plastic plate 33 of fixation adhesive tape 35 and protection sheet 3 is subjected to adhesion at this time, are conducive to pass through modeling
Property 33 pairs of plate bendings parts limit, while the screen resiliences that generate are offset after 33 pairs of plastic plate bendings, and by solid
Determine adhesive tape 35 to be supported, the function of backlight caused by the screen resilience generated after can bending with effective solution flexible circuit board 2
The bad problem of energy.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model
Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical
In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. a kind of FPC backlight, including device noumenon (1), it is characterised in that：Described device ontology (1) includes flexible circuit board
(2) and the protection sheet (3) for protecting the flexible circuit board (2), the flexible circuit board (2) includes for the curved of folding
Folding area (21), the bonding pad (22) for wiring and setting are between the bent area (21) and the bonding pad (22)
Transition region (23), the protection sheet (3) offer connecting groove (31) close to the side of the transition region (23), and the connection is recessed
The two sides of slot (31) form protrusion (32), and the protection sheet (3) is provided with close to the one end of the connecting groove (31)
Plastic plate (33) is connected with folding line groove (34) between the plastic plate (33) and the protection sheet (3), and the plastic plate (33) is leaned on
Adhesion has fixation adhesive tape (35) respectively at the both ends of the nearly protrusion (32).
2. a kind of FPC backlight according to claim 1, it is characterised in that：The width of the protrusion (32) is at least
2mm, length are at least 3mm.
3. a kind of FPC backlight according to claim 1, it is characterised in that：The transition region (23) and the protection sheet
(3) distance of the protrusion (32) at both ends is 1~2.5mm.
4. a kind of FPC backlight according to claim 1, it is characterised in that：The bent area (21) is completely covered on institute
It states in protection sheet (3).
5. a kind of FPC backlight according to claim 1, it is characterised in that：The transition region (23) is partially covered on institute
It states in plastic plate (33).
6. a kind of FPC backlight according to claim 1, it is characterised in that：The bent area (21) and the transition
Connecting sewing between area (23) is located on the same line with the folding line groove (34).
7. a kind of FPC backlight according to claim 1, it is characterised in that：The plastic plate (33) passes through the folding line
Slot (34) and the protection sheet (3) are rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218646.2U CN208110198U (en) | 2017-09-22 | 2017-09-22 | A kind of FPC backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218646.2U CN208110198U (en) | 2017-09-22 | 2017-09-22 | A kind of FPC backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208110198U true CN208110198U (en) | 2018-11-16 |
Family
ID=64130379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218646.2U Expired - Fee Related CN208110198U (en) | 2017-09-22 | 2017-09-22 | A kind of FPC backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208110198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785755A (en) * | 2019-03-15 | 2019-05-21 | 昆山国显光电有限公司 | Flexible display apparatus and preparation method thereof |
-
2017
- 2017-09-22 CN CN201721218646.2U patent/CN208110198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785755A (en) * | 2019-03-15 | 2019-05-21 | 昆山国显光电有限公司 | Flexible display apparatus and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20210922 |