CN103491705A - Flexible circuit board - Google Patents
Flexible circuit board Download PDFInfo
- Publication number
- CN103491705A CN103491705A CN201310463982.3A CN201310463982A CN103491705A CN 103491705 A CN103491705 A CN 103491705A CN 201310463982 A CN201310463982 A CN 201310463982A CN 103491705 A CN103491705 A CN 103491705A
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- Prior art keywords
- linkage section
- circuit board
- flexible circuit
- span
- functional unit
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- 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.)
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Links
- 239000010410 layer Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002346 layers by function Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Landscapes
- Structure Of Printed Boards (AREA)
Abstract
The invention relates to the technical field of panel display, in particular to a flexible circuit board. The flexible circuit board is used for being connected with a first function unit and at least comprises a first connecting segment and a second connecting segment, wherein the first connecting segment and the second connecting segment are adjacent to each other and electrically connected. The first connecting segment used for being connected with the first function unit. The span of one end, adjacent to the first connecting segment, on the second connecting segment in the first direction is smaller than that of one end, adjacent to the second connecting segment, on the first connecting segment in the first direction.
Description
Technical field
The present invention relates to technical field of flat panel display, relate in particular to a kind of flexible circuit board.
Background technology
Flexible printed circuit board (Flexible Printed Circuit Board) is called again flexible electric circuit board, that a kind of to take mylar or polyimides be base material, by be etched on Copper Foil form that circuit makes there is height reliability, the printed circuit of excellent flexibility.It has advantages of that many rigid printed circuit boards do not possess.For example it can free bend, coiling, folding, can require to arrange arbitrarily according to space layout, and mobile and flexible arbitrarily at three dimensions, thereby reach integrated that the components and parts assembling is connected with wire.Utilize FPC can greatly dwindle the volume of electronic product, applicable electronic product is to the needs of high density, miniaturization, highly reliable future development.Therefore, FPC is widely used on the fields such as space flight, military affairs, mobile communication, laptop computer, computer peripheral equipment, PDA, digital camera or electronic product.
FPC have single face, two-sided and multi-layer sheet minute.The base material adopted be take polyimide copper clad lamination as main.This kind of material thermal resistance is high, good stability of the dimension, with the coverlay that has mechanical protection and good electrical insulation property concurrently, by compacting, forms final products.Top layer and inner conductor two-sided, multilayer printed wiring board are realized the electrical connection of ectonexine circuit by metallization.The material that forms FPC has insulating substrate, adhesive, metal conductor layer (Copper Foil), cover layer and supporting material etc.
For example, yet, in the back segment packaging process of electronic product (liquid crystal display module), as shown in Figure 1, the end of FPC10 is electrically connected by two-sided conducting resinl and display unit 20, the other end is connected with mainboard 30 (or chip) by two-sided conducting resinl.In subsequent treatment process, inevitably can touch FPC10, make FPC10 bending or distortion occur, and then make the FPC10 edge be electrically connected with display unit 20 or mainboard 30 easily occur peeling off, even cause local shedding, affect the performance of electronic product.
Summary of the invention
In view of this, the invention provides a kind of flexible circuit board that is conducive to improve electronic product performance.
Described flexible circuit board provided by the invention, for connecting the first functional unit, it at least comprises one first linkage section and one second linkage section adjacent and that be electrical connected, described the first linkage section is for being connected with described the first functional unit, and on described the second linkage section, the end span in a first direction of contiguous described the first linkage section is less than the span of an end on described first direction that described the first linkage section is close to described the second linkage section.
In described flexible circuit board provided by the invention, described flexible circuit board also comprises the 3rd linkage section, described the 3rd linkage section is electrical connected by described the second linkage section and described the first linkage section, described the 3rd linkage section is for being connected with one second functional unit, and on described the second linkage section, the end span in a first direction of contiguous described the 3rd linkage section is less than the span of an end on described first direction that described the 3rd linkage section is close to described the second linkage section.
In described flexible circuit board provided by the invention, described the first linkage section, the second linkage section and the 3rd linkage section structure that is formed in one, described the second linkage section arbitrary span in a first direction is less than the span of an end on described first direction of described the first linkage section and contiguous described the second linkage section of the 3rd linkage section respectively.
Described the second linkage section has the first opposing side and the second side along second direction, the distance of being passed through on described the first side and the second side between two lines that cut in described first direction and the definite plane of second direction first reduces gradually along first direction, then increase gradually, described the second linkage section along the minimum span on first direction be described the second linkage section along on first direction maximum span 1/2.
In described flexible circuit board provided by the invention, described the second linkage section also has opposing first surface and second surface, described first surface is first reduced gradually by the graphics area cut perpendicular to first direction and the determined plane of second direction, then increases gradually.
In described flexible circuit board provided by the invention, the material that forms described flexible base, board at least comprises insulated base material layer, metal level and cover layer, described metal level is between described insulated base material layer and described cover layer, and described the first functional unit and described the second functional unit are by described metal level and the electrical connection of described flexible circuit board.
Another kind of flexible circuit board provided by the invention, for connecting the first functional unit, it at least comprises one first linkage section and one second linkage section adjacent and that be electrical connected, described the first linkage section is for being connected with described the first functional unit, and the ductility of described the second linkage section is greater than respectively the ductility of described the first linkage section and the 3rd linkage section.
In another kind of flexible circuit board provided by the invention, described flexible circuit board also comprises the 3rd linkage section, described the 3rd linkage section is electrical connected by described the second linkage section and described the first linkage section, described the 3rd linkage section is for being connected with one second functional unit, and on described the second linkage section, an end of contiguous described the first linkage section is less than the span of an end on described third direction of contiguous described the second linkage section of described the first linkage section, on described the second linkage section, the span of an end on third direction of contiguous described the 3rd linkage section is less than the span of an end on described third direction of contiguous described the second linkage section of described the 3rd linkage section, described the first linkage section, the second linkage section and the 3rd linkage section structure that is formed in one, the material that forms described flexible base, board at least comprises insulated base material layer, metal level and cover layer, described metal level is between described insulated base material layer and described cover layer, described the first functional unit and described the second functional unit are by described metal level and the electrical connection of described flexible circuit board.
In another kind of flexible circuit board provided by the invention, on described the first linkage section and the 3rd linkage section, also be coated with respectively the hard functional layer, the thickness of described hard functional layer is more than or equal to the thickness at arbitrary place on the second linkage section.
In another kind of flexible circuit board provided by the invention, described the first linkage section along four directions to thickness reduce gradually, the thickness of described the second linkage section be described the first linkage section along four directions to minimum thickness, the even thickness setting of described the second linkage section, described the first linkage section along four directions to length be described the second linkage section along four directions to length 1/4.
In flexible circuit board provided by the invention, due in a first direction, the second linkage section has with respect to the first linkage section and the less span of the second linkage section, can sustain the stress produced because of bending, therefore, can reduce the suffered stress in junction of described the first functional unit and described the first linkage section, and then can prevent that the first functional unit from peeling off or local shedding from described flexible circuit board, improve the performance of electronic product.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
The connection diagram that Fig. 1 is flexible circuit board of the prior art;
The front view of the flexible circuit board connected mode that Fig. 2 is the first execution mode provided by the invention;
The front view that Fig. 3 is the flexible circuit board shown in Fig. 2;
Fig. 4 is the sectional view of the flexible circuit board shown in Fig. 3 along A-A ' direction;
The front view of the flexible circuit board that Fig. 5 is the second execution mode provided by the invention;
The stereogram that Fig. 6 is the flexible circuit board shown in Fig. 5;
The stereogram of the flexible circuit board that Fig. 7 is the third execution mode provided by the invention;
Fig. 8 is the sectional view of the flexible circuit board shown in Fig. 7 along B-B ' direction.
Embodiment
For flexible circuit board provided by the invention is described, below in conjunction with Figure of description and explanatory note, be described in detail.
Flexible circuit board provided by the invention is for connecting the first functional unit, it at least comprises one first linkage section and one second linkage section adjacent and that be electrical connected, described the first linkage section is for being connected with described the first functional unit, and on described the second linkage section, the end span in a first direction of contiguous described the first linkage section is less than the span of an end on described first direction that described the first linkage section is close to described the second linkage section.Described flexible circuit board also comprises the 3rd linkage section, for being connected with one second functional unit, and on described the second linkage section, the end span in a first direction of contiguous described the 3rd linkage section is less than the span of an end on described first direction of contiguous described the second linkage section of described the 3rd linkage section, preferably, described the second linkage section arbitrary span in a first direction is less than the span of an end on described first direction of described the first linkage section and contiguous described the second linkage section of the 3rd linkage section respectively, described first direction is perpendicular to the closure of described the first functional unit and described flexible circuit board.
As shown in Figures 2 and 3, schematic diagram for the flexible circuit board 100 of the first execution mode provided by the invention, described flexible circuit board 100 is for connecting the first functional unit 200 and the second functional unit 300, described flexible circuit board 100 comprises the first linkage section 101, the second linkage section 102 and the 3rd linkage section 103, described the first linkage section 101 second linkage sections 102 are adjacent and be electrical connected, described the 3rd linkage section 103 is electrical connected with described the first linkage section 101 by described the second linkage section 102, described the first linkage section 101 is for being connected with described the first functional unit 200, described the 3rd linkage section 103 is for being connected with described the second functional unit 300, described flexible circuit board 100 is by described the second linkage section 102 bendings.
In present embodiment, as shown in Figure 3, described the first linkage section 101, the second linkage section 102 and the 3rd linkage section 103 structure that is formed in one, described the first linkage section 101, the second linkage section 102 and the 3rd linkage section 103 are rectangle, described the second span W1 of linkage section 102 on first direction 11 is less than described the first linkage section 101 and span W2, the W3 of the 3rd linkage section 103 on first direction 11 respectively, and described the second linkage section is remained unchanged by the graphics area cut perpendicular to described first direction and the determined plane of second direction.
When flexible circuit board 100 is bent, due in a first direction, the second linkage section 102 has with respect to the first linkage section 101 and the less span of the second linkage section 103, can sustain the stress produced because of bending, therefore, can reduce described the first functional unit 200 and the second functional unit 300 stress suffered in the junction with described the first linkage section 101 and the 3rd linkage section 103, and then can prevent that the first functional unit 200 and the second functional unit 300 from peeling off or local shedding from described flexible circuit board 100, improved the performance of electronic product.
As shown in Figure 4, it is the sectional view of the flexible circuit board shown in Fig. 3 along A-A ' direction.Flexible circuit board 100 in present embodiment at least comprises dielectric substrate layer 112, metal level 111 and cover layer 110, described metal level 111 is between described dielectric substrate layer 112 and cover layer 110, and described the first functional unit 200 and the second functional unit 300 are respectively by described metal level 111 and described flexible circuit board 100 electrical connections.
In other embodiments, described flexible circuit board can also not comprise the 3rd linkage section, and described flexible circuit board can also have according to actual conditions other shape.
As shown in Figure 5 and Figure 6, the front view of its flexible circuit board that is the second execution mode of the present invention 200 and stereogram, described flexible circuit board 200 comprises the first linkage section 201 adjoined each other, the second linkage section 202 and the 3rd linkage section 203, the second linkage section 202 of described flexible circuit board 200 has the first opposing side 202a and the second side 202b along second direction 12, the distance of being passed through on described the first side 202a and the second side 202b between two lines that cut in described first direction and the definite plane of second direction reduces gradually along first on described the first linkage section to the second linkage section (being first direction) direction, then increase gradually.Described the second linkage section 202 also comprises first surface 202c and the second surface 202d of opposing setting, described first surface 202c and second surface 202d, are then increased along first reducing gradually on described the first linkage section to the second linkage section (being first direction) direction gradually by the length of the line segment cut perpendicular to first direction and the determined plane of second direction; And described the second linkage section 202 is reduced along elder generation on described the first linkage section to the second linkage section (being first direction) direction gradually through described second direction and the graphics area that cut perpendicular to described first direction and the determined plane of second direction, then increase gradually, or described graphics area is along remaining unchanged on described the first linkage section to the second linkage section (being first direction) direction.In the present embodiment, described the first side 202a and the second side 202b are respectively towards center line 13 indents of described the second linkage section 202, described center line 13 extends along second direction 12, and described the second linkage section 102 is that described the second linkage section 102 is along 1/2 of the maximum span W6 on first direction 11 along the minimum span W5 on first direction 11.
Arbitrary vertical interval between described first surface 202c and second surface 202d can remain unchanged, and described vertical interval also can first reduce gradually along second direction, after increase gradually.
In present embodiment, described second direction 12 is along the closure of described the first functional unit and described flexible circuit board, and vertical with described first direction 11, in other embodiments, also can first direction and second direction be set according to actual conditions.
Preferably, the thickness of described the first linkage section 201 is along reducing gradually on described the first linkage section 201 to second linkage sections 202 (being first direction) direction, the thickness of described the 3rd linkage section 203 is along reducing gradually on described the 3rd linkage section 203 to second linkage sections 202 (being first direction) direction, and described thickness direction is along perpendicular to described first direction and the determined plane of second direction., the graphics area that described the first linkage section 201 is cut by the plane of the first surface 202c perpendicular to the second linkage section 202 is along reducing gradually on the first linkage section 201 to second linkage sections 202 (being first direction) direction, the described first minimum graphics area is decreased to S1, the graphics area that described the 3rd linkage section 203 is cut by the plane of the first surface 202c perpendicular to the second linkage section 202 reduces gradually along the 3rd linkage section 203 to second linkage sections 202 (being first direction) direction, the described second minimum graphics area is decreased to S2, the graphics area that described the second linkage section 202 is cut by the plane of the first surface 202c perpendicular to the second linkage section 202 remains unchanged along first direction always, and it is the 3rd graphics area S3, the minimum graphics area S2 of the described first minimum graphics area S1 second equates, and be more than or equal to the 3rd graphics area S3.
As shown in Figure 7 and Figure 8, it is respectively the schematic diagram of flexible circuit board of the third execution mode provided by the invention and the described flexible circuit board sectional view along B-B ' direction, described flexible circuit board 300 comprises the first linkage section 301, the second linkage section 302 and the 3rd linkage section 303 that adjoins each other and be electrical connected, and the ductility of described the second linkage section 302 is less than respectively the ductility of described the first linkage section 301 and the 3rd linkage section 303.
In present embodiment, described the first linkage section 301, the second linkage section 302 and the 3rd linkage section 303 structure that is formed in one, on described the second linkage section 302, an end of contiguous described the first linkage section 301 is less than the span of an end on described third direction 14 of described first linkage section 301 contiguous described the second linkage sections 302, and on described the second linkage section 302, the span of an end on third direction 13 of contiguous described the 3rd linkage section 303 is less than the span of an end on described third direction 13 of described the 3rd linkage section 303 contiguous described the second linkage sections 302.
In present embodiment, the material that forms described flexible base, board 300 at least comprises insulated base material layer, metal level and cover layer, described metal level is between described insulated base material layer and described cover layer, and the first functional unit and the second functional unit are by described metal level and described flexible circuit board electrical connection (not shown).As shown in Figure 7 and Figure 8, also be coated with respectively hard functional layer 304 on described the first linkage section 301 and the 3rd linkage section 303, described hard functional layer 304 is positioned at the same side of flexible circuit board 300, and the thickness of described hard functional layer 304 equals the thickness of described the second linkage section 302, described thickness direction is perpendicular to described B-B ' direction and the determined plane of described third direction 13.
In another embodiment, described the first linkage section 301 along four directions to thickness reduce gradually, the thickness of described the second linkage section 302 be described the first linkage section 301 along four directions to minimum thickness, the even thickness setting of described the second linkage section 302, described the first linkage section 301 along four directions to length be described the second linkage section 302 along four directions to 1/4 (not shown) of length, described third direction 14 with four directions to mutually vertical.
In other embodiments, described hard functional layer can also lay respectively at the opposing both sides of flexible circuit board, and the thickness of described hard functional layer can be greater than or less than the thickness of the second linkage section, and also can not do restriction to the first linkage section, the second linkage section and the span of the 3rd linkage section on third direction; In other embodiments, can also the flexibility function layer be set on the second linkage section, the thickness of described flexibility function layer is less than the thickness of described hard functional layer.
In present embodiment by the first linkage section and the 3rd linkage section, the hard functional layer being set, make the ductility of the second linkage section be less than the ductility of the first linkage section and the 3rd linkage section, can reduce described the first functional unit and the second functional unit respectively with the suffered stress in the junction of described the first linkage section and the 3rd linkage section, and then can prevent that the first functional unit and the second functional unit from peeling off or local shedding from described flexible circuit board, improved the performance of electronic product.
It is more than the better embodiment of flexible circuit board provided by the invention; can not be interpreted as the restriction to rights protection scope of the present invention; those skilled in the art should know; without departing from the inventive concept of the premise; also can do multiple improvement or replacement; these all improvement or replacement all should be in the scope of the present invention, and the scope of the present invention should be as the criterion with claim.
Claims (10)
1. a flexible circuit board, for connecting one first functional unit, it at least comprises one first linkage section and one second linkage section adjacent and that be electrical connected, described the first linkage section is for being connected with described the first functional unit, and on described the second linkage section, the span of an end on a first direction of contiguous described the first linkage section is less than the span of an end on described first direction that described the first linkage section is close to described the second linkage section.
2. flexible circuit board as claimed in claim 1, it is characterized in that: described flexible circuit board also comprises the 3rd linkage section, described the 3rd linkage section is electrical connected by described the second linkage section and described the first linkage section, described the 3rd linkage section is for being connected with one second functional unit, and on described the second linkage section, the end span in a first direction of contiguous described the 3rd linkage section is less than the span of an end on described first direction that described the 3rd linkage section is close to described the second linkage section.
3. flexible circuit board as claimed in claim 2, it is characterized in that: described the first linkage section, the second linkage section and the 3rd linkage section structure that is formed in one, described the second linkage section arbitrary span in a first direction is less than the span of an end on described first direction of described the first linkage section and contiguous described the second linkage section of the 3rd linkage section respectively.
4. flexible circuit board as claimed in claim 3, it is characterized in that: described the second linkage section has the first opposing side and the second side along second direction, the distance of being passed through on described the first side and the second side between two lines that cut in described first direction and the definite plane of second direction first reduces gradually along first direction, then increase gradually, described the second linkage section along the minimum span on first direction be described the second linkage section along on first direction maximum span 1/2.
5. flexible circuit board as claimed in claim 3, it is characterized in that: described the second linkage section also has opposing first surface and second surface, described first surface is first reduced gradually by the graphics area cut perpendicular to first direction and the determined plane of second direction, then increases gradually.
6. flexible circuit board as claimed in claim 1, it is characterized in that: the material that forms described flexible base, board at least comprises insulated base material layer, metal level and cover layer, described metal level is between described insulated base material layer and described cover layer, and described the first functional unit and described the second functional unit are by described metal level and the electrical connection of described flexible circuit board.
7. a flexible circuit board, for connecting the first functional unit, it at least comprises one first linkage section and one second linkage section adjacent and that be electrical connected, described the first linkage section is for being connected with described the first functional unit, and the ductility of described the second linkage section is greater than respectively the ductility of described the first linkage section and the 3rd linkage section.
8. flexible circuit board as claimed in claim 7, it is characterized in that: described flexible circuit board also comprises the 3rd linkage section, described the 3rd linkage section is electrical connected by described the second linkage section and described the first linkage section, described the 3rd linkage section is for being connected with one second functional unit, and on described the second linkage section, an end of contiguous described the first linkage section is less than the span of an end on described third direction of contiguous described the second linkage section of described the first linkage section, on described the second linkage section, the span of an end on third direction of contiguous described the 3rd linkage section is less than the span of an end on described third direction of contiguous described the second linkage section of described the 3rd linkage section, described the first linkage section, the second linkage section and the 3rd linkage section structure that is formed in one, the material that forms described flexible base, board at least comprises insulated base material layer, metal level and cover layer, described metal level is between described insulated base material layer and described cover layer, described the first functional unit and described the second functional unit are by described metal level and the electrical connection of described flexible circuit board.
9. flexible circuit board as claimed in claim 8, it is characterized in that: also be coated with respectively the hard functional layer on described the first linkage section and the 3rd linkage section, the thickness of described hard functional layer is more than or equal to the thickness at arbitrary place on the second linkage section.
10. flexible circuit board as claimed in claim 7, it is characterized in that: described the first linkage section along four directions to thickness reduce gradually, the thickness of described the second linkage section be described the first linkage section along four directions to minimum thickness, the even thickness setting of described the second linkage section, described the first linkage section along four directions to length be described the second linkage section along four directions to length 1/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463982.3A CN103491705B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463982.3A CN103491705B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103491705A true CN103491705A (en) | 2014-01-01 |
| CN103491705B CN103491705B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310463982.3A Active CN103491705B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible circuit board |
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| Country | Link |
|---|---|
| CN (1) | CN103491705B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6433284B1 (en) * | 2000-07-25 | 2002-08-13 | Advanced Flexible Circuits Co., Ltd. | Partially cut multi-planar flexible printed circuit |
| CN1507312A (en) * | 2002-12-13 | 2004-06-23 | 日本胜利株式会社 | Flexible printed circuit board and producing method thereof |
| EP1589794A1 (en) * | 2004-04-21 | 2005-10-26 | Samsung Electronics Co., Ltd. | Flexible printed circuit board |
| WO2009157976A1 (en) * | 2008-06-23 | 2009-12-30 | Eastman Kodak Company | Curved flat cable |
| CN203645907U (en) * | 2013-09-27 | 2014-06-11 | 深圳莱宝高科技股份有限公司 | Flexible printed circuit board |
-
2013
- 2013-09-27 CN CN201310463982.3A patent/CN103491705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6433284B1 (en) * | 2000-07-25 | 2002-08-13 | Advanced Flexible Circuits Co., Ltd. | Partially cut multi-planar flexible printed circuit |
| CN1507312A (en) * | 2002-12-13 | 2004-06-23 | 日本胜利株式会社 | Flexible printed circuit board and producing method thereof |
| EP1589794A1 (en) * | 2004-04-21 | 2005-10-26 | Samsung Electronics Co., Ltd. | Flexible printed circuit board |
| WO2009157976A1 (en) * | 2008-06-23 | 2009-12-30 | Eastman Kodak Company | Curved flat cable |
| CN203645907U (en) * | 2013-09-27 | 2014-06-11 | 深圳莱宝高科技股份有限公司 | Flexible printed circuit board |
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| Publication number | Publication date |
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| CN103491705B (en) | 2017-04-05 |
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Application publication date: 20140101 Assignee: Zhejiang Laibao Display Technology Co.,Ltd. Assignor: SHENZHEN LAIBAO HI-TECH Co.,Ltd. Contract record no.: X2024980006773 Denomination of invention: A flexible circuit board Granted publication date: 20170405 License type: Common License Record date: 20240605 |
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