CN205755053U - A kind of printed circuit board (PCB) and display device - Google Patents
A kind of printed circuit board (PCB) and display device Download PDFInfo
- Publication number
- CN205755053U CN205755053U CN201520975033.8U CN201520975033U CN205755053U CN 205755053 U CN205755053 U CN 205755053U CN 201520975033 U CN201520975033 U CN 201520975033U CN 205755053 U CN205755053 U CN 205755053U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- pcb
- golden finger
- groove
- 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.)
- Active
Links
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
This utility model provides a kind of printed circuit board (PCB) and display device.This printed circuit board (PCB) includes that base material and multiple setting spaced golden finger on the substrate, each golden finger bonding district are formed with exhaust groove.When using the anisotropy conductiving glue printed circuit board (PCB) to the utility model proposes to carry out bonding with display floater or printed circuit board (PCB), due to the setting of exhaust groove, generation pressing bubble can be prevented effectively from bonding processes, improve and produce yield.
Description
Technical field
This utility model relates to a kind of printed circuit board (PCB) and display device.
Background technology
Printed circuit board (PCB) is the supporter of electronic devices and components, is also the carrier of electronic devices and components electrical connection.Owing to it is typically with what electron printing made, therefore it is referred to as " printing " circuit board.
Printed circuit board (PCB) is one of important electronic unit of electronics industry, and along with electronic product constantly develops to thin, little, smart direction, printed circuit board (PCB) is increasingly widely used, and becomes one of wiring board the most with fastest developing speed, and development prospect is the most wide.Printed circuit board (PCB) can be divided into again printed circuit board and flexible printed circuit board.
Golden finger (Gold Finger) is the interface that the circuit on printed circuit board (PCB) is connected with external devices, it is possible to be referred to as conductive contact or conductive contact blade.If Fig. 1 is the printed circuit board (PCB) of prior art, including base material 4 and multiple golden finger 1 being arranged on base material 4.Usually, golden finger 1 is smooth strip, equivalently-sized and the most arranged in parallel, and each golden finger 1 extends to printed circuit board edge.When carrying out bonding with display floater or printed circuit board (PCB), need to coat anisotropy conductiving glue in the bonding region 3 shown in dotted line in advance, again with display floater or printed circuit board (PCB) laminating precompressed, heating pressurization forms firm attachment structure after carrying out this pressure, wherein anisotropy conductiving glue is to be provided with a plurality of spherical conductive particle by envelope in semi-solid preparation resin or formed by a plurality of spherical conductive mix particles tenacity viscose, has the characteristic that vertical direction conducts and horizontal direction is not turned on.During bonding, anisotropic conductive can be laid between element to be joined, then by heating, pressurization, element to be joined is linked together by anisotropy conductiving glue by temperature and pressure effect, and make the element of joint have conductive effect in vertical direction, the most not there is conductive effect.
But at present during printed circuit board (PCB) bonding processing procedure, when becoming uneven or anisotropy conductiving glue uneven surface due to processing procedure reason golden finger, when the pressure of whole of anisotropy conductiving glue comes, easily in bonding processes, produce a large amount of bubble, directly result in bonding strength insufficient strength between anisotropy conductiving glue and printed circuit board (PCB), in the case of a high temperature, easily form expansion, cause defect rate higher.
Utility model content
The problem and shortage existed for above-mentioned prior art, the purpose of this utility model is to provide the printed circuit board (PCB) having exhaust groove on a kind of golden finger.
For reaching above-mentioned purpose, according to one side of the present utility model, it is provided that a kind of printed circuit board (PCB), including base material and a plurality of spaced golden finger being located on described base material, each described golden finger is provided with groove, and described groove is as exhaust groove and is not filled.
Preferably, described groove is arranged on the bonding district of described golden finger.
Preferably, the width of described groove is less than 1/3rd of conducting particles diameter described in described anisotropic conductive.
Preferably, on described golden finger, the distance of two adjacent described grooves is more than three times of described conducting particles diameter.
Preferably, on described golden finger, the quantity of described groove is more than or equal to 1.
Preferably, any one or the combination in any of three kinds of cablings during described groove cabling can be straight line, disjoint broken line, three kinds of cablings of disjoint curve.
Preferably, the cross sectional shape of described groove can be triangle, rectangle, trapezoidal in any one or three kinds of combination in any.
Preferably, the two ends of described groove are inside described golden finger, or at described golden finger sidepiece, or one end at the internal other end of described golden finger at described golden finger sidepiece.
Preferably, the degree of depth of groove is less than or equal to the thickness of described golden finger.
Preferably, described base material uses flexible material to be made.
According to another aspect of the present utility model, additionally provide a kind of display device, it is characterised in that including display floater and above-mentioned printed circuit board (PCB), described printed circuit board (PCB) is connected to display floater by described anisotropic conductive.
The printed circuit board (PCB) that the utility model proposes, each golden finger of printed circuit board (PCB) is formed with groove, in bonding processing procedure, the gas between anisotropy conductiving glue and golden finger can be drained by these grooves, reduces the bubble in this processing procedure bad, promotes and produces yield.
Accompanying drawing explanation
Fig. 1 is the floor map of the printed circuit board (PCB) of prior art.
Fig. 2 is the floor map of the printed circuit board (PCB) according to this utility model embodiment 1.
Fig. 3 is the part sectioned view that the printed circuit board (PCB) according to this utility model embodiment 1 is located at golden finger AA '.
Fig. 4 is the floor map of the printed circuit board (PCB) according to this utility model embodiment 2.
Fig. 5 is the floor map of the printed circuit board (PCB) according to this utility model embodiment 3.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail; but illustrate that protection domain of the present utility model is not limited to the concrete scope of the present embodiment simultaneously; based on the embodiment in this utility model; the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly falls into the scope of this utility model protection.
Embodiment one
Fig. 2 and Fig. 3 is illustrated that the printed circuit board (PCB) according to this utility model embodiment 1, and Fig. 2 is the floor map of printed circuit board (PCB), Fig. 3 be the printed circuit board (PCB) in Fig. 2 bonding region 3 in golden finger 1 AA ' place part sectioned view.The printed circuit board (PCB) of this utility model embodiment also includes base material 4 and multiple golden finger 1 being arranged on base material 4.
Being with the difference of printed circuit board (PCB) of the prior art, each golden finger 1 is not simple smooth strip, but is formed on fluted 21.
Galley the most of the present utility model is when carrying out bonding processing procedure with display floater or printed circuit board (PCB), first under precompressed action when golden finger 1 againsts anisotropy conductiving glue when, owing to temperature reason gas can be drained toward both sides along groove 21；Then, can again drain toward both sides along groove 21 owing to anisotropy conductiving glue body is pressed into groove 21 gas when of this pressure.Originally, after pressing through, groove 21 can be blocked by anisotropy conductiving glue.Thus avoid generation bubble between golden finger 1 and anisotropy conductiving glue.
Owing to the flatness of anisotropy conductiving glue and golden finger 1 is difficult to monitoring, it is preferable that arrange multiple exhaust groove 21 on the golden finger 1 in bonding district 3, to scheme much more as far as possible to reduce bubble formation.
It is internal that the two ends of groove 21 can be arranged on golden finger 1, it is also possible to one end is arranged on the internal other end and is arranged on sidepiece, it is preferable that the two ends of groove 21 are arranged on golden finger 1 sidepiece, and beneficially during bonding, gas is discharged.
Considering from technique as shown in Figure 3, the preferably cross sectional shape by groove 21 is rectangular, it is also possible to the cross sectional shape of groove does triangularity or trapezoidal, or rectangle, trapezoidal, the combination in any of triangle.
Depth H 2 in view of the electric conductivity of golden finger 1, preferably groove 21 is generally not more than 1/3rd of the diameter D6 that depth H 2 is conducting particles 6 in anisotropy conductiving glue of body height H1 of golden finger 1, preferably groove 21, as shown in Figure 3.
In order to avoid in anisotropy conductiving glue, conducting particles 6 quantity causes galley of the present utility model to be electrically connected with inefficacy with display floater or printed circuit board (PCB) not, groove 21 width W2 is less than by 1/3rd of the diameter D6 of conducting particles in anisotropy conductiving glue 6, and distance W1 between adjacent grooves 21 is greater than three times of the diameter D6 of conducting particles 6 in anisotropy conductiving glue.
Base material 4 in printed circuit board (PCB) of the present utility model can use flexible material to be made, to form flexible printed circuit board, the thin film that concrete can be such as is fabricated to the flexible material such as polyimides or polyester material is as base material, make and there is height reliability, good flexual printed circuit board (PCB), it is called for short soft board or flexible printed circuit board FPC (Flexible Printed Circuit is called for short FPC), has the advantages that distribution density is high, lightweight, thickness is thin.
The present embodiment additionally provides a kind of display device, including the printed circuit board (PCB) described in display floater and the present embodiment.
Embodiment 2
Such as Fig. 4, the cabling of golden finger 1 upper groove 22 that the present embodiment provides is broken line type, and remaining is same as in Example 1.
The present embodiment additionally provides a kind of display device, including the printed circuit board (PCB) described in display floater and the present embodiment.
Embodiment 3
Such as Fig. 5, the cabling of golden finger 1 upper groove 23 that the present embodiment provides is shaped form, and remaining is same as in Example 1.
The present embodiment additionally provides a kind of display device, including the printed circuit board (PCB) described in display floater and the present embodiment.
This utility model display device can be: any product with display function or the parts such as liquid crystal panel, Electronic Paper, oled panel, LCD TV, liquid crystal display, DPF, mobile phone, panel computer.
Above detailed description of the invention is merely to illustrate this utility model, rather than to restriction of the present utility model.Although this utility model being described in detail with reference to embodiment; but it will be understood by those within the art that; the technical solution of the utility model is carried out various combination, amendment or equivalent; without departure from principle of the present utility model and spirit, it all should be contained within this utility model scope of the claims.
Claims (11)
1. a printed circuit board (PCB), including base material and a plurality of spaced golden finger being located on described base material, it is characterised in that each described golden finger is provided with groove, and described groove is as exhaust groove and is not filled.
Printed circuit board (PCB) the most according to claim 1, it is characterised in that described groove is arranged on described golden finger bonding district.
Printed circuit board (PCB) the most according to claim 1 and 2, it is characterized in that, described golden finger bonding district is engaged with display device by anisotropic conductive, has conducting particles in anisotropic conductive, and the width of each described groove is less than 1/3rd of described conducting particles diameter.
Printed circuit board (PCB) the most according to claim 1 and 2, it is characterized in that, described golden finger bonding district is engaged with display device by anisotropic conductive, has conducting particles in anisotropic conductive, and the distance between two adjacent described grooves is more than three times of described conducting particles diameter.
Printed circuit board (PCB) the most according to claim 1, it is characterised in that on each described golden finger, described number of recesses is more than or equal to 1.
Printed circuit board (PCB) the most according to claim 1, it is characterised in that the cabling of described groove can be any one or the combination in any of three kinds of cablings in straight line, disjoint broken line, three kinds of cablings of disjoint curve.
Printed circuit board (PCB) the most according to claim 1, it is characterised in that the cross sectional shape of described groove can be triangle, rectangle, trapezoidal in any one or the combination in any of three kinds of shapes.
8. according to the printed circuit board (PCB) described in claim 1 or 6, it is characterised in that the two ends of described groove are inside described golden finger, or at described golden finger sidepiece, or one end at the internal other end of described golden finger at described golden finger sidepiece.
9. according to the printed circuit board (PCB) described in claim 1 or 6, it is characterised in that the degree of depth of described groove is less than or equal to the thickness of described golden finger.
Printed circuit board (PCB) the most according to claim 1, it is characterised in that described base material uses flexible material to be made.
11. 1 kinds of display devices, it is characterised in that include the printed circuit board (PCB) described in claim 1-10 any of which item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975033.8U CN205755053U (en) | 2015-11-30 | 2015-11-30 | A kind of printed circuit board (PCB) and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975033.8U CN205755053U (en) | 2015-11-30 | 2015-11-30 | A kind of printed circuit board (PCB) and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205755053U true CN205755053U (en) | 2016-11-30 |
Family
ID=57389061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520975033.8U Active CN205755053U (en) | 2015-11-30 | 2015-11-30 | A kind of printed circuit board (PCB) and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205755053U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471671A (en) * | 2018-01-19 | 2018-08-31 | 昆山国显光电有限公司 | The binding structure and binding method and flexible device of flexible PCB |
| CN109587939A (en) * | 2019-01-08 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof and display device |
| WO2024036770A1 (en) * | 2022-08-19 | 2024-02-22 | 长鑫存储技术有限公司 | Semiconductor package substrate and manufacturing method therefor, and semiconductor package structure |
-
2015
- 2015-11-30 CN CN201520975033.8U patent/CN205755053U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471671A (en) * | 2018-01-19 | 2018-08-31 | 昆山国显光电有限公司 | The binding structure and binding method and flexible device of flexible PCB |
| CN109587939A (en) * | 2019-01-08 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof and display device |
| WO2024036770A1 (en) * | 2022-08-19 | 2024-02-22 | 长鑫存储技术有限公司 | Semiconductor package substrate and manufacturing method therefor, and semiconductor package structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103809344B (en) | Display device | |
| CN205755053U (en) | A kind of printed circuit board (PCB) and display device | |
| KR102086073B1 (en) | Printed wiring board | |
| WO2016070493A1 (en) | Lead structure and method for preventing acf adhesive from overflowing to display area | |
| CN203746444U (en) | Anisotropic conductive film and display panel | |
| WO2018119572A1 (en) | Display device, electronic device, and method of manufacturing display device | |
| TW201225231A (en) | Bonding pad structure and integrated cicruit comprise a pluirality of bonding pad structures | |
| CN207040007U (en) | Circuit board and display device | |
| CN206479744U (en) | A kind of structure, display device and the electronic equipment that prevent flexible PCB to be broken | |
| KR101774928B1 (en) | Flexible printed board | |
| CN206251438U (en) | A kind of fingerprint identification device based on FPC | |
| CN203691751U (en) | Printed circuit board and display device | |
| US20160330829A1 (en) | Flexible printed circuit | |
| TW201513747A (en) | Flexible printed circuit board and electronic device using the same | |
| CN113870732B (en) | Display device | |
| CN206413261U (en) | Circuit board assemblies and the terminal with it | |
| CN106503690B (en) | Layered fingerprint identification module | |
| JP2005251654A (en) | Anisotropic conductive sheet and its manufacturing method | |
| WO2018032997A1 (en) | Touch substrate and touch display device | |
| CN210381443U (en) | Single-layer one-way wiring structure for improving bending performance of FPC (flexible printed circuit) of liquid crystal display module | |
| CN206525024U (en) | It is a kind of to bury the pliability copper-clad base plate for holding and burying resistance | |
| CN1619807B (en) | Substrate including integrated circuit chip and integrated circuit on said substrate | |
| CN207612457U (en) | Flexible PCB | |
| CN209358833U (en) | Flexible circuit board structure, display screen and electronic equipment | |
| CN103915696B (en) | Connector and connector assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |