CN104039080A - Circuit board and display device - Google Patents
Circuit board and display device Download PDFInfo
- Publication number
- CN104039080A CN104039080A CN201410226880.4A CN201410226880A CN104039080A CN 104039080 A CN104039080 A CN 104039080A CN 201410226880 A CN201410226880 A CN 201410226880A CN 104039080 A CN104039080 A CN 104039080A
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- link
- circuit board
- pcb
- printed circuit
- flexible pcb
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Abstract
The invention provides a circuit board and a display device. The circuit board comprises a printed circuit board and a flexible circuit board, wherein the printed circuit board comprises at least two layers of substrates; at least one layer of substrate is provided with a first coupling end; the flexible circuit board comprises a second coupling end; the first coupling end is connected with the second coupling end; and the second coupling end is clamped between two adjacent layers of substrates of the printed circuit board. In the circuit board, the second coupling end of the flexible circuit board is clamped between two adjacent layer of substrates of the printed circuit board, so that coupling errors caused when the printed circuit board and the flexible circuit board are coupled can be avoided, and the coupling accuracy and success rate of the printed circuit board and the flexible circuit board can be improved so as to improve the yield of the circuit board.
Description
Technical field
The invention belongs to liquid crystal indicator manufacturing technology field, be specifically related to a kind of circuit board and display unit.
Background technology
At Thin Film Transistor-LCD (Thin-film transistor liquid crystal display, be called for short TFT-LCD) manufacturing process in, often relate to the connection between flexible PCB (COF) and printed circuit board (PCB) (PCB).When connection, its connecting portion is carried out to pressurized, heated to form reliable and stable machinery, electrical connection between the two.
At present, flexible PCB and printed circuit board (PCB) are normally made respectively, then by operating personnel, flexible PCB are connected with printed circuit board (PCB), the connecting portion of flexible PCB and printed circuit board (PCB) are heated to pressurization, make it to fit together.But due in flexible PCB and printed circuit board (PCB) heating process, the material of flexible PCB and printed circuit board (PCB) can expand, so be easy to cause the lead-in wire on flexible PCB and printed circuit board (PCB) to misplace.At present, when the mode that overcomes above-mentioned dislocation comprises design, do in advance when dwindling and heating the temperature of equipment board is controlled.
Inventor finds that in prior art, at least there are the following problems: when operating personnel are connected with printed circuit board (PCB) flexible PCB, inevitably can have contraposition deviation.And from design, do in advance when dwindling and heating the temperature of equipment board to regulate and control, all needing to carry out test of many times could obtain rational design load and temperature conditions, the difficulty of existence is larger.To sum up, when flexible PCB is connected with printed circuit board (PCB), easily there is connecting error, the accuracy connecting is poor, product yield is not high, thereby cause the lead-in wire on flexible PCB and printed circuit board (PCB) easily to misplace, the accuracy that impact connects, even may occur connecting and open circuit and cause product normally to use.
Summary of the invention
The present invention is directed to the above-mentioned technical problem existing in prior art, a kind of circuit board and display unit are provided.This circuit board can avoid printed circuit board (PCB) in the time being connected, to occur connecting error with flexible PCB, improves accuracy and success rate that printed circuit board (PCB) is connected with flexible PCB, thereby improves the yields of circuit board.
The invention provides a kind of circuit board, comprise printed circuit board (PCB) and flexible PCB, described printed circuit board (PCB) comprises at least two-layer substrate, at least described in one deck, on substrate, be provided with the first link, described flexible PCB comprises the second link, described the first link is connected with described the second link, and described the second link is folded between the adjacent two-layer described substrate of described printed circuit board (PCB).
Preferably, described the second link is arranged on a plate face of described flexible PCB, on the plate face of facing mutually with described the second link that described the first link is arranged on described substrate, and described the first link is corresponding with described the second link position.
Preferably, described the second link divide be located at described flexible PCB back to the opposite position of two plate faces on, described the first link divides on the plate face of facing mutually with described the second link that is located at adjacent two-layer described substrate, and described the first link is corresponding with described the second link position.
Preferably, offer via hole at described the first link and described the second equitant region of link, described via hole is applied in described the first link and described the second link, in described via hole, be provided with electric conducting material, can make all described the first links be connected with described the second link.
Preferably, the shape of described the first link and described the second link is rectangle, described the first link equates with the width of described the second link, the length of described the first link is greater than the length of described the second link, and described the first link blocks described the second link completely in orthographic projection direction.
Preferably, be respectively arranged with aligning structure at described flexible PCB mutually with described substrate in the face of on the opposite position of plate face, described aligning structure can make described the first link be connected with described the second link contraposition.
Preferably, described aligning structure lays respectively at the both sides of described the first link and described the second link.
Preferably, described the first link is positioned at the plate face edge of described printed circuit board (PCB), and described the second link is positioned at the plate face edge of described flexible PCB.
The present invention also provides a kind of display unit, comprises foregoing circuit plate.
Beneficial effect of the present invention: circuit board provided by the present invention is by being folded between the adjacent two-layer substrate of printed circuit board (PCB) the second link of flexible PCB, thereby can avoid printed circuit board (PCB) in the time being connected, to occur connecting error with flexible PCB, improve accuracy and success rate that printed circuit board (PCB) is connected with flexible PCB, and then improved the yields of circuit board.
Display unit provided by the present invention, by adopting foregoing circuit plate, has improved demonstration reliability and the display quality of this display unit greatly.
Brief description of the drawings
Fig. 1 is the structure cutaway view of circuit board in the embodiment of the present invention 1;
Fig. 2 is the vertical view that in Fig. 1, flexible PCB is provided with the plate face of the second link;
Fig. 3 is the partial top view that is provided with the substrate surface of the first link in Fig. 1 in printed circuit board (PCB);
Fig. 4 is the structure cutaway view of circuit board in the embodiment of the present invention 2.
Description of reference numerals wherein:
1. printed circuit board (PCB); 11. substrates; 12. first links; 2. flexible PCB; 21. second links; 3. aligning structure.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, a kind of circuit board provided by the present invention and display unit are described in further detail.
Embodiment 1:
The present embodiment provides a kind of circuit board, as shown in Figure 1, comprise printed circuit board (PCB) 1 and flexible PCB 2, printed circuit board (PCB) 1 comprises at least two-layer substrate 11, on at least one laminar substrate 11, be provided with the first link 12, flexible PCB 2 comprises that the second link 21, the first links 12 are connected with the second link 21, and the second link 21 is folded between the adjacent two-layer substrate 11 of printed circuit board (PCB) 1.
So arrange, can avoid printed circuit board (PCB) 1 to occur in the time being connected with flexible PCB 2 connecting error, the accuracy of the two connection is higher, thereby has greatly improved the yields of circuit board.
In the present embodiment, the second 21 points of links be located at flexible PCB 2 back to the opposite position of two plate faces on, on the plate face of facing mutually with the second link 21 that the first 12 points of links are located at adjacent two-layer substrate 11, and the first link 12 is corresponding with the second link 21 positions.Being that flexible PCB 2 is two-sided arranges the second terminals 21, and the first terminals 12 are connected with the second terminals 21 double contacts.So arrange, can increase the contact area of the first link 12 and the second link 21, thus accuracy and success rate when raising printed circuit board (PCB) 1 is connected with flexible PCB 2; The increase of the first link 12 and the second link 21 contacts area can also make the magnitude of current that flows through the first link 12 and the second link 21 can not there are differences, and then guarantees the reliability connecting between printed circuit board (PCB) 1 and flexible PCB 2.
In the present embodiment, offer via hole at the first link 12 and the second equitant region of link 21, via hole is applied in the first link 12 and the second link 21, is provided with electric conducting material in via hole, can make the first all links 12 be connected with the second link 21.The setting of via hole can further increase the contact area that the first link 12 is connected with the second link 21, further improve accuracy and the success rate that printed circuit board (PCB) 1 is connected with flexible PCB 2, and make firmly to connect between printed circuit board (PCB) 1 and flexible PCB 2; Can also make the numerical value of the magnitude of current that flows through the first link 12 and the second link 21 increase doubly, guarantee the reliable connection between printed circuit board (PCB) 1 and flexible PCB 2; In addition, the setting of via hole can also avoid flexible PCB 2 to tear from the crack of adjacent two-layer substrate 11 because of stressed, has increased the steadiness that flexible PCB 2 is connected with printed circuit board (PCB) 1.
In the present embodiment, the shape of the first link 12 and the second link 21 is rectangle, the first link 12 equates with the width of the second link 21, the length of the first link 12 is greater than the length of the second link 21, the first link 12 blocks the second link 21 completely in orthographic projection direction, and the second link 21 is overlapping on the first link 12 completely.So can improve the first link 12 and the accuracy that the second link 21 is connected, make the two in the time that pressing connects, be not easy dislocation, and can accurate involutory connection.
In addition, as shown in Figures 2 and 3, be respectively arranged with aligning structure 3 at flexible PCB 2 mutually with substrate 11 in the face of on the opposite position of plate face, aligning structure 3 can make the first link 12 be connected with the second link 21 contrapositions.Aligning structure 3 lays respectively at the both sides of the first link 12 and the second link 21.
Arranging of aligning structure 3 can make the first link 12 and the second link 21 carry out accurate contraposition, thereby improved the accuracy of the two connection.
In the present embodiment, the first link 12 is positioned at the plate face edge of printed circuit board (PCB) 1, and the second link 21 is positioned at the plate face edge of flexible PCB 2.So accurate contraposition of convenient the first link 12 and the second link 21 and being connected.
The preparation method of foregoing circuit plate comprises: step S1: printed circuit board (PCB) 1 and flexible PCB are carried out to layout design simultaneously.
In this step, according to the said structure of circuit board and size, the first link 12 and the second link 21 are designed, can directly draw shape and cabling first link 12 corresponding with the second link 21 in wherein laminar substrate 11 inner sides of printed circuit board (PCB) 1.
Step S2: adopt identical composition technique to form the second link 21 and the aligning structure 3 on the first link 12, the flexible PCB 2 in adjacent two-layer substrate 11.
The first link 12, the second link 21 and the aligning structure 3 contraposition accuracy that form by this step are high, have also reduced the error when later stage, the two contraposition pressing connected simultaneously.
Step S3: the one end that flexible PCB 2 is provided with to the second link 21 is located between adjacent two-layer substrate 11, and make the first link 12 and the second link 21 by aligning structure 3 exactitude positions, then carry out pressing.
By pressing, the first link 12 and the second link 21 just exactitude position link together.
If printed circuit board (PCB) 1 comprises more than two-layer substrate 11, the pressing between follow-up other laminar substrates 11 that carry out again printed circuit board (PCB) 1, until finally form circuit board.
Embodiment 2:
The present embodiment provides a kind of circuit board, as different from Example 1, as shown in Figure 4, the second link 21 is arranged on a plate face of flexible PCB 2, on the plate face of facing mutually with the second link 21 that the first link 12 is arranged on substrate 11, and the first link 12 is corresponding with the second link 21 positions.
With respect to embodiment 1, in the present embodiment, flexible PCB 2 one sides arrange the second terminals 21, and the first terminals 12 are connected with the second terminals 21 one side contacts, therefore, the contact area of the first link 12 and the second link 21 reduces, but than prior art, above-mentioned setting can be improved accuracy and the success rate that printed circuit board (PCB) 1 is connected with flexible PCB 2 equally, can also guarantee the steadiness of the two connection simultaneously.
In the present embodiment, other structures and the preparation method of circuit board is in the same manner as in Example 1, repeats no more herein.
The beneficial effect of embodiment 1-2: the circuit board in embodiment 1-2 is by being folded between the adjacent two-layer substrate 11 of printed circuit board (PCB) the second link of flexible PCB, thereby can avoid printed circuit board (PCB) in the time being connected, to occur connecting error with flexible PCB, improve accuracy and success rate that printed circuit board (PCB) is connected with flexible PCB, and then improved the yields of circuit board.
Embodiment 3:
The present embodiment provides a kind of display unit, comprises the circuit board of embodiment 1-2 in any one.
By adopting the embodiment 1-2 circuit board in any one, greatly improve demonstration reliability and the display quality of this display unit.
Be understandable that, above execution mode is only used to principle of the present invention is described and the illustrative embodiments that adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (9)
1. a circuit board, comprise printed circuit board (PCB) and flexible PCB, described printed circuit board (PCB) comprises at least two-layer substrate, at least described in one deck, on substrate, be provided with the first link, described flexible PCB comprises the second link, it is characterized in that, described the first link is connected with described the second link, and described the second link is folded between the adjacent two-layer described substrate of described printed circuit board (PCB).
2. circuit board according to claim 1, it is characterized in that, described the second link is arranged on a plate face of described flexible PCB, on the plate face of facing mutually with described the second link that described the first link is arranged on described substrate, and described the first link is corresponding with described the second link position.
3. circuit board according to claim 1, it is characterized in that, described the second link divide be located at described flexible PCB back to the opposite position of two plate faces on, described the first link divides on the plate face of facing mutually with described the second link that is located at adjacent two-layer described substrate, and described the first link is corresponding with described the second link position.
4. according to the circuit board described in claim 2 or 3, it is characterized in that, offer via hole at described the first link and described the second equitant region of link, described via hole is applied in described the first link and described the second link, in described via hole, be provided with electric conducting material, can make all described the first links be connected with described the second link.
5. circuit board according to claim 4, it is characterized in that, the shape of described the first link and described the second link is rectangle, described the first link equates with the width of described the second link, the length of described the first link is greater than the length of described the second link, and described the first link blocks described the second link completely in orthographic projection direction.
6. circuit board according to claim 5, it is characterized in that, be respectively arranged with aligning structure in the face of on the opposite position of plate face at described flexible PCB mutually with described substrate, described aligning structure can make described the first link be connected with described the second link contraposition.
7. circuit board according to claim 6, is characterized in that, described aligning structure lays respectively at the both sides of described the first link and described the second link.
8. circuit board according to claim 1, is characterized in that, described the first link is positioned at the plate face edge of described printed circuit board (PCB), and described the second link is positioned at the plate face edge of described flexible PCB.
9. a display unit, is characterized in that, comprises the circuit board described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226880.4A CN104039080A (en) | 2014-05-26 | 2014-05-26 | Circuit board and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226880.4A CN104039080A (en) | 2014-05-26 | 2014-05-26 | Circuit board and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104039080A true CN104039080A (en) | 2014-09-10 |
Family
ID=51469619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410226880.4A Pending CN104039080A (en) | 2014-05-26 | 2014-05-26 | Circuit board and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104039080A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005235956A (en) * | 2004-02-18 | 2005-09-02 | Hitachi Chem Co Ltd | Method of circuit connection |
| CN1802067A (en) * | 2005-11-25 | 2006-07-12 | 惠州Tcl移动通信有限公司 | Assembly of FPC and PCB |
| CN2904342Y (en) * | 2006-03-14 | 2007-05-23 | 惠州市德赛电池有限公司 | Printed circuitboard and flexible circuitboard connecting structure |
| CN200965930Y (en) * | 2006-11-15 | 2007-10-24 | 罗卫明 | A novel linking structure of connector |
| JP2008211023A (en) * | 2007-02-27 | 2008-09-11 | Citizen Holdings Co Ltd | Flexible circuit board mounting body |
| CN101945538A (en) * | 2010-09-19 | 2011-01-12 | 华为终端有限公司 | Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board |
| CN202035211U (en) * | 2011-03-15 | 2011-11-09 | 苏州超联光电有限公司 | Flexible printed circuit board and touch screen with same |
-
2014
- 2014-05-26 CN CN201410226880.4A patent/CN104039080A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005235956A (en) * | 2004-02-18 | 2005-09-02 | Hitachi Chem Co Ltd | Method of circuit connection |
| CN1802067A (en) * | 2005-11-25 | 2006-07-12 | 惠州Tcl移动通信有限公司 | Assembly of FPC and PCB |
| CN2904342Y (en) * | 2006-03-14 | 2007-05-23 | 惠州市德赛电池有限公司 | Printed circuitboard and flexible circuitboard connecting structure |
| CN200965930Y (en) * | 2006-11-15 | 2007-10-24 | 罗卫明 | A novel linking structure of connector |
| JP2008211023A (en) * | 2007-02-27 | 2008-09-11 | Citizen Holdings Co Ltd | Flexible circuit board mounting body |
| CN101945538A (en) * | 2010-09-19 | 2011-01-12 | 华为终端有限公司 | Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board |
| CN202035211U (en) * | 2011-03-15 | 2011-11-09 | 苏州超联光电有限公司 | Flexible printed circuit board and touch screen with same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140910 |
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| RJ01 | Rejection of invention patent application after publication |