CN100487529C - Flexible circuit board and flat display having said flexible circuit board - Google Patents
Flexible circuit board and flat display having said flexible circuit board Download PDFInfo
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- CN100487529C CN100487529C CNB2004100287597A CN200410028759A CN100487529C CN 100487529 C CN100487529 C CN 100487529C CN B2004100287597 A CNB2004100287597 A CN B2004100287597A CN 200410028759 A CN200410028759 A CN 200410028759A CN 100487529 C CN100487529 C CN 100487529C
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- connection pad
- conductive part
- short circuit
- circuit connection
- lead
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- 239000004973 liquid crystal related substance Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 7
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 7
- 239000004020 conductor Substances 0.000 description 1
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Abstract
Flexible circuit board includes first, second and third electric conduction parts, first conducting wire and a cutting groove. The second electric conduction part possesses first short circuit connection pad located on one end of the flexible circuit board. Third electric conduction part is located between first and second electric conduction parts. First conduction wire possesses first conduction wire section and second conduction wire section, the first conduction wire section is connected to first electric conduction part and a short circuit connection pad electrically. Second conduction wire section is connected to first short circuit connection pad and the third electric conduction part. The cutting groove is formed between first conduction wire section and second conduction wire section.
Description
Technical field
The present invention is about a kind of flexible PCB, especially in regard to a kind of flexible PCB that damages conductor structure when avoiding because of warpage.
Background technology:
Traditional flat display module (a for example liquid crystal display device module) generally connects an external circuit (not shown) by flexible PCB.As shown in Figure 1a, one flexible PCB 1 is provided with first, second and the 3rd conductive part 11,12,13, wherein first, second conductive part 11,12 lays respectively at the two ends of flexible PCB 1, in addition, first conductive part 11 is provided with connection pad (Pad) 110, in order to connecting described external circuit, and also be provided with connection pad 120 in second conductive part 12, in order to electrically connect top liquid crystal display device module M.For instance, an external circuit is electrically connected at connection pad 110, and connects liquid crystal display device module M by the lead T and second conductive part 12, so as to transmitting power supply or other electric signal.
In particular, described flexible PCB 1 is provided with a ㄩ shape grooving 10, so as to forming a kink 130.See also Fig. 1 b, described the 3rd conductive part 13 is arranged in the kink 130, passes through during assembling kink 130 is made progress warpage so as to fixed bend folding part 130, and is connected with the liquid crystal display device module M of top.
See also Fig. 2 again, it represents the partial schematic diagram of described flexible PCB 1.As shown in Figure 2, one lead T generally is that counter-rotating is extended down so as to connecting the 3rd conductive part 13 after walking around ㄩ shape grooving 10 tops, yet when kink 130 makes progress warpage, often easily because of deflection makes grooving 10 tear extension, and then damage lead T and form open circuit (shown in dotted portion among the figure).
Summary of the invention:
As previously mentioned, the present invention proposes a kind of flexible PCB, comprises one first conductive part, one second conductive part, one the 3rd conductive part, first lead and a grooving.Second conductive part has one first short circuit connection pad, is positioned at an end of described flexible PCB.Described the 3rd conducting position is between first, second conductive part.In addition, first lead has one first conducting line segment and one second conducting line segment, and first conducting line segment system electrically connects first conductive part and a short circuit connection pad, and in addition, second conducting line segment electrically connects the first short circuit connection pad and the 3rd conductive part.Wherein, described grooving is formed between first, second conducting line segment and forms a kink, and described the 3rd conductive part is arranged in this kink.
Foregoing flexible PCB, wherein second conductive part has the first short circuit connection pad of a plurality of mutual conduction, first conducting line segment electrically connect first conductive part and the first short circuit connection pad one of them, and second conducting line segment electrically connect the 3rd conductive part and the first short circuit connection pad one of them.
In a preferred embodiment, described flexible PCB also comprises one second lead, and second conductive part has a plurality of second short circuit connection pads, is positioned at the first short circuit connection pad outside, and wherein second lead electrically connects first conductive part, the second short circuit connection pad and the 3rd conductive part.
In a preferred embodiment, the adjacent arrangement of the described first short circuit connection pad.
In a preferred embodiment, the described second lead local linking is in first lead outside.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below elaborate especially exemplified by preferred embodiment and conjunction with figs..
Description of drawings:
Fig. 1 a, 1b are depicted as the synoptic diagram of traditional LC D module in conjunction with flexible PCB;
Figure 2 shows that the synoptic diagram of conventional flex circuits plate wire structures;
Figure 3 shows that the synoptic diagram of first embodiment among the present invention;
Figure 4 shows that the synoptic diagram of second embodiment among the present invention;
Figure 5 shows that the synoptic diagram of the 3rd embodiment among the present invention;
Figure 6 shows that the synoptic diagram of the 4th embodiment among the present invention.
Symbol description:
1～flexible PCB
11～the first conductive parts
10～grooving
110～connection pad
12～the second conductive parts
120～connection pad
1201～the first short circuit connection pads
1202～the second short circuit connection pads
13～the 3rd conductive parts
130～bend
D～distance
M～display apparatus module
M1～first is in conjunction with connection pad
M2～second is in conjunction with connection pad
T, M1 ', M2 '～lead
T ', T1 '～first conducting line segment
T ", T1 "～second conducting line segment
T2 '～privates section
T2 "～the privates section
Embodiment:
First embodiment
At first see also Fig. 3, it is depicted as the synoptic diagram of first embodiment among the present invention.The present invention system improves at described traditional wire laying mode, can be widely used in (a for example liquid crystal display device module) in the flat-panel screens.One lead T has one first conducting line segment T ' and one second conducting line segment T ", wherein the first conducting line segment T ' is in order to connect described first, second conductive part 11,12, the second conducting line segment T " then in order to connect second, third conductive part 12,13.The lead T a plurality of connection pads 120 on second conductive part 12 that electrically conduct, however also can only connect single connection pad 120, and by the second conducting line segment T " electrically connect below the 3rd conductive part 13, so as to transmitting power supply or electric signal.
Wire structures of the present invention is that reflexed is downward again after making lead T extend to second conductive part, 12 positions, top, can effectively increase the distance of lead T and grooving 10 compared to the traditional wiring mode, and then can avoid kink 130 to tear grooving 10 causing lead T to open circuit because of deflection.
Illustrate, first conductive part 11 and second conductive part 12 can be external in system end and electronic package end respectively (for example: the display pannel end), yet its application is not limited in this, can decide on demand.
Second embodiment
At first see also Fig. 4, it is depicted as the synoptic diagram of second embodiment among the present invention.In present embodiment, second conductive part 12 has a plurality of first short circuit connection pads 1201 and a plurality of second short circuit connection pad 1202, and the wherein said first short circuit connection pad 1201 is adjacent arrangements, and conducting each other and have one first electrical.In addition, 1202 of the second short circuit connection pads stride across the first short circuit connection pad 1201 and mutual conduction, and have one second electrical.As shown in the figure, one first lead T1 has first, second conducting line segment T1 ', T1 ", and the second lead T2 has the 3rd, privates section T2 ', T2 ".
In the present embodiment, the described first conducting line segment T1 ' electrically connects first conductive part, 11 to 1 first short circuit connection pads, 1201, the second conducting line segment T1 " then electrically connect another first short circuit connection pad, 1201 to the 3rd conductive parts 13; In addition, privates section T2 ' electrically connects first conductive part, 11 to 1 second short circuit connection pads 1202, privates section T2 " then electrically connect another second short circuit connection pad, 1202 to the 3rd conductive parts 13.
As shown in Figure 4, the described second short circuit connection pad 1202 lays respectively at the first short circuit connection pad, 1201 outsides, and the second lead T2 then is surrounded on the first lead T1 periphery partly, and an end of wherein said grooving 10 then is formed at the first conducting line segment T1 ' and the second conducting line segment T1 " between.By wire structures of the present invention, make lead extend to the downward again reflexed in second conductive part, 12 positions, top, can effectively increase the distance D of lead and grooving 10 compared to the traditional wiring mode, and then can avoid kink 130 to tear grooving 10 causing wire break because of deflection.It should be noted that, be to be example in this embodiment with two groups of leads (the first lead T1 and the second lead T2), yet the number of lead can be decided on the side circuit design requirement, is not limited at this, gets around mutually to avoid electric connection at second conductive part 12 as long as respectively organize lead.
Illustrate, first conductive part 11 and second conductive part 12 can be external in system end and electronic package end respectively (for example: the display pannel end), yet its application is not limited in this, is decided by demand.
The 3rd embodiment
At first see also Fig. 5, it is depicted as the synoptic diagram of the 3rd embodiment among the present invention.In present embodiment, a plurality of first short circuit connection pad, 1201 mutual conduction, and also mutual conduction of a plurality of second short circuit connection pad 1202.As shown in the figure, the described first short circuit connection pad 1201 is connected on the electronic package, for example accordingly: first on the liquid crystal display device module M is in conjunction with connection pad M1, and the second short circuit connection pad 1202 then connects second on the liquid crystal display device module M accordingly in conjunction with connection pad M2.In Fig. 5, the described first short circuit connection pad 1201 and the second short circuit connection pad 1202 are non-conterminous mutually, yet can form respectively independently connecting circuit by lead M1 ', M2 ' on the liquid crystal display device module M, make the short circuit connection pad 1201 of winning be connected and have one first electrical in conjunction with connection pad M1 with first; In like manner, the second short circuit connection pad 1202 and second has one second electrical in conjunction with connection pad M2 is connected.As previously mentioned, no matter first, second short circuit connection pad 1201,1202 is adjacent or non-conterminous, all can form independently connecting circuit by lead M1 ', the M2 ' on the liquid crystal display device module M to form conducting.
In Fig. 5, flexible PCB 1 is provided with the first conducting line segment T1 ', in order to electrically connect first conductive part, 11 to 1 first short circuit connection pads 1201, in addition, the second conducting line segment T1 " then electrically connect another first short circuit connection pad, 1201 to the 3rd conductive parts 13; In addition, a privates section T2 ' electrically connects first conductive part, 11 to second short circuit connection pads 1202, in addition, privates section T2 " then electrically connect another second short circuit connection pad, 1202 to the 3rd conductive parts 13.
So, can make by wire structures of the present invention and to extend to second conductive part 12 positions, top by lead reflexed is downward again, on liquid crystal display device module M, form independently connecting circuit by lead M1 ', M2 ', make win short circuit connection pad 1201 and the second short circuit connection pad 1202 can at random be arranged at any position on second conductive part 12, and can promote the convenience of wires design significantly.Moreover the present invention also can increase the distance D of lead and grooving 10 effectively compared to the traditional wiring mode, so can avoid kink 130 to tear grooving 10 because of deflection and cause wire break.
The 4th embodiment
At first see also Fig. 6, it is depicted as the synoptic diagram of the 4th embodiment among the present invention.In present embodiment, a plurality of first short circuit connection pads 1201 are connected on the electronic package accordingly on second conductive part 12, for example: first on the liquid crystal display device module M is in conjunction with connection pad M1, and the second short circuit connection pad 1202 then connects second on the liquid crystal display device module M accordingly in conjunction with connection pad M2.As shown in Figure 6, first is adjacent arrangement and conducting each other in conjunction with connection pad M1, and has one first electrical; In particular, second in conjunction with connection pad M2 stride across first in conjunction with connection pad M1 mutual conduction, and have one second electrical.
In addition, the described first conducting line segment T1 ' electrically connects first conductive part, 11 to 1 first short circuit connection pads, 1201, the second conducting line segment T1 " then electrically connect another first short circuit connection pad, 1201 to the 3rd conductive parts 13; Again, privates section T2 ' electrically connects first conductive part, 11 to 1 second short circuit connection pads 1202, privates section T2 " then electrically connect another second short circuit connection pad, 1202 to the 3rd conductive parts 13.In present embodiment, connect first in conjunction with connection pad M1 by the first lead T1, and contact described second in conjunction with connection pad M2 by the second lead T2, wherein the second lead T2 is surrounded on the first lead T1 outside partly at liquid crystal display device module M end, in addition, an end of described grooving 10 then is formed at the first conducting line segment T1 ' and the second conducting line segment T1 " between.
By wire structures of the present invention, make lead T1, T2 may extend to second conductive part, 12 positions, top, and after distinctly forming the circuit of independent conducting by first, second of liquid crystal display device module M end in conjunction with connection pad M1, M2, utilize second, privates section T1 ", T2 " reflexed connects the 3rd conductive part 13 downwards, can effectively increase the distance D of lead and grooving 10 compared to the traditional wiring mode, and then can avoid kink 130 to tear grooving 10 causing wire break because of deflection.It should be noted that, be to be example in this embodiment with two groups of leads (the first lead T1 and the second lead T2), yet the number of lead can be decided on the side circuit design requirement, is not limited at this, gets around mutually to avoid electric connection at second conductive part 12 as long as respectively organize lead.Illustrate, first conductive part 11 and second conductive part 12 can be external in system end and electronic package end respectively (for example: the display pannel end), yet its application is not limited in this, is decided by demand.
In sum, the present invention makes circuit turn to behind the connection pad that flexible PCB 1 top lead is connected near flat display module M end again, the power supply of external circuit and electric signal can successfully transmit via lead T from first conductive part 11 thus, and are passed to flat display module M by the second or the 3rd conductive part 12,13.In particular, by above-mentioned design make kink 130 in the flexible PCB 1 when the deflection not reason tear grooving 10 and damage lead, and then can guarantee the performance of product.In addition, the present invention also can be simultaneously uses in conjunction with second, third or the 4th embodiment.That is, simultaneously the electronic package end (for example: the panel end) with the coiling design of second conductive part 12 during the flexible circuit board end all designs as Fig. 4 and the coiling that combines connection pad M1, M2 in as Fig. 5 or Fig. 6 design.
Though disclose as above with preferred embodiment by the present invention; so it is not in order to limit scope of the present invention; any insider; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when looking being as the criterion that appending claims defines.
Claims (13)
1. flexible PCB comprises:
One first conductive part;
One second conductive part has one first short circuit connection pad, is positioned at an end of described flexible PCB;
At least one the 3rd conductive part is between described first, second conductive part;
One first lead has one first conducting line segment and one second conducting line segment, and wherein said first conducting line segment electrically connects described first conductive part and the described first short circuit connection pad, and described second conducting line segment electrically connects described first short circuit connection pad and described the 3rd conductive part;
One grooving is formed between described first, second conducting line segment and forms a kink, and described the 3rd conductive part is arranged in this kink.
2. flexible PCB according to claim 1, it is characterized in that described second conductive part has the first short circuit connection pad of a plurality of mutual conduction, described first conducting line segment electrically connect described first conductive part and the described first short circuit connection pad one of them, and described second conducting line segment electrically connects wherein another of described the 3rd conductive part and the described first short circuit connection pad.
3. flexible PCB according to claim 2 is characterized in that the adjacent arrangement of the described first short circuit connection pad.
4. flexible PCB according to claim 2 is characterized in that described flexible PCB also comprises one second lead, and described second conductive part has a plurality of second short circuit connection pads, is positioned at the described first short circuit connection pad outside,
Wherein, described the 3rd conductive part is a plurality of, the 3rd conductive part that described first lead is connected be described the 3rd conductive part one of them,
Wherein said second lead electrically connects wherein another of described first conductive part, the described second short circuit connection pad and described the 3rd conductive part.
5. flexible PCB according to claim 4 is characterized in that described second lead and the described second short circuit connection pad are surrounded on described first lead outside partly at the described second conductive part end.
6. flexible PCB according to claim 5, it is characterized in that described second lead has a privates section and a privates section, described privates section electrically connect described first conductive part and the described second short circuit connection pad one of them, described privates section electrically connects wherein another of described the 3rd conductive part another and the described second short circuit connection pad wherein.
7. flat-panel screens comprises:
Flexible PCB according to claim 2;
One display apparatus module electrically connects described flexible PCB.
8. flat-panel screens according to claim 7, it is characterized in that described flexible PCB also comprises one second lead, and described second conductive part has a plurality of second short circuit connection pads, and wherein said second lead electrically connects described first conductive part, the described second short circuit connection pad and described the 3rd conductive part.
9. flat-panel screens according to claim 7 is characterized in that described display apparatus module has a plurality of first in conjunction with connection pad, and described first electrically conducts and connect the described first short circuit connection pad in conjunction with connection pad.
10. flat-panel screens according to claim 8, it is characterized in that described display apparatus module have a plurality of first in conjunction with connection pad and a plurality of second in conjunction with connection pad, described first electrically conducts and connects the described first short circuit connection pad in conjunction with connection pad, and described second electrically conducts and connect the described second short circuit connection pad in conjunction with connection pad.
11. flat-panel screens according to claim 10 is characterized in that the described first short circuit connection pad is non-conterminous mutually.
12. flat-panel screens according to claim 10 is characterized in that the described second short circuit connection pad is non-conterminous mutually.
13. flat-panel screens according to claim 10 is characterized in that described second lead and described second is surrounded on described first lead outside in conjunction with connection pad partly at described display apparatus module end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100287597A CN100487529C (en) | 2004-03-17 | 2004-03-17 | Flexible circuit board and flat display having said flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100287597A CN100487529C (en) | 2004-03-17 | 2004-03-17 | Flexible circuit board and flat display having said flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1564055A CN1564055A (en) | 2005-01-12 |
| CN100487529C true CN100487529C (en) | 2009-05-13 |
Family
ID=34480939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100287597A Expired - Fee Related CN100487529C (en) | 2004-03-17 | 2004-03-17 | Flexible circuit board and flat display having said flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100487529C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006301317A (en) * | 2005-04-21 | 2006-11-02 | Hitachi Ltd | Plasma display module |
| CN101304632B (en) * | 2007-05-09 | 2012-04-11 | 奇美电子股份有限公司 | Pliability circuit board and uses thereof |
| CN102541318A (en) * | 2010-12-17 | 2012-07-04 | 东莞万士达液晶显示器有限公司 | Routing structure for touch panel |
-
2004
- 2004-03-17 CN CNB2004100287597A patent/CN100487529C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1564055A (en) | 2005-01-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| 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: 20090513 |