CN103515815B - Based on the MHL connection of flexible PCB, connector, transducer and system - Google Patents
Based on the MHL connection of flexible PCB, connector, transducer and system Download PDFInfo
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- CN103515815B CN103515815B CN201210223906.0A CN201210223906A CN103515815B CN 103515815 B CN103515815 B CN 103515815B CN 201210223906 A CN201210223906 A CN 201210223906A CN 103515815 B CN103515815 B CN 103515815B
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- mhl
- flexible pcb
- connector
- strip line
- differential signal
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/005—Adapting incoming signals to the display format of the display terminal
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Structure Of Printed Boards (AREA)
- Communication Cables (AREA)
Abstract
The embodiment of the invention discloses a kind of MHL connection based on flexible PCB, connector, transducer and system, does wherein said jockey comprise: copper foil layer, M under flexible PCB? HL differential signal strip line layer and electromagnetic interference EMI screen, wherein: copper foil layer and described M under described flexible PCB? HL differential signal strip line layer bonds; Described EMI screen is covered on described MHL differential signal strip line layer.Good and the frivolous softness of quality of described EMI screen electric conductivity, the design needs that jockey thickness reduces and is easy to bending can be realized, there is provided convenient and the MHL signal high speed connector be electrically connected with described FPC for making production MHL transducer, overcome ordinary connector impedance behavior in prior art low, the defect that electrical loss is high.
Description
Technical field
The present invention relates to electronic equipment interfaces technical field, more particularly, relate to a kind of MHL connection based on flexible PCB, connector, transducer and system.
Background technology
MHL is mobile terminal high-definition audio and video standard interface, it by the high definition resource that is stored on the storage mediums such as portable equipment by common mini/microUSB connector and MHL transducer by HDMI Signal transmissions to external equipment, as HDTV (High-Definition Television).
Because MHL output speed reaches the serial signal of more than 1GHz, existing MHL transducer comprises: the flexible PCB FPC that USB interface, MHL signal connector are connected with described MHL signal connector transmits, on described FPC, MHL signal is by strip transmission, and it is respectively upper and lower two-layer Copper Foil with reference to stratum.
But the above-mentioned FPC inputted in connected mode for MHL signal is two-layer copper foil structure, namely be three-decker when comprising MHL transmission line layer, there is the large bending degree of thickness low, to reduce and profile variation brings limitation for making and produce MHL transducer volume, and, because existing MHL signal connector adopts ordinary connector to be connected on FPC mostly, there is impedance behavior low, the defect that electrical loss is high.
Summary of the invention
In view of this, the invention provides a kind of MHL connection based on flexible PCB, connector, transducer and system, to realize the making of MHL connection and to produce MHL transducer volume and to reduce and profile variation brings convenience, and impedance behavior improves, the object that electrical loss reduces.
Based on a MHL connection for flexible PCB, comprising:
Copper foil layer, MHL differential signal strip line layer and electromagnetic interference EMI screen under flexible PCB, wherein:
Under described flexible PCB, copper foil layer and described MHL differential signal strip line layer bond;
Described EMI screen is covered on described MHL differential signal strip line layer.
In order to improve such scheme, the described MHL connection based on flexible PCB can be connected with the MHL signal high speed connector of MHL transducer.
Based on a MHL connector for flexible PCB, comprising:
The interconnective above-mentioned MHL connection based on flexible PCB and MHL signal connector;
In order to improve such scheme, described MHL signal connector is specially MHL signal high speed connector.
Based on a MHL transducer for flexible PCB, comprising: above-mentioned MHL connector and USB connector, described MHL connector, the described MHL signal connector of MHL connector is connected with described USB connector.
In order to improve such scheme, described MHL signal connector is specially MHL signal high speed connector.
Based on a MHL connected system for flexible PCB, comprising: portable equipment, external equipment and the described MHL transducer based on flexible PCB;
Described portable equipment is connected with described USB connector by USB interface;
Described external equipment is connected by the MHL connection based on flexible PCB of MHL interface with the described MHL connector based on flexible PCB.
In order to improve such scheme, described MHL signal connector is specially MHL signal high speed connector.
As can be seen from above-mentioned technical scheme, jockey in the embodiment of the present invention, MHL connection in connector and connected system bonds the strip line layer for transmitting MHL differential signal on the lower copper foil layer of flexible PCB, and EMI screen is covered on described MHL differential signal strip line layer, described EMI screen and described MHL differential signal strip line layer are the reference stratum of described MHL differential signal, good and the frivolous softness of quality of described EMI screen electric conductivity, the design needs that jockey thickness reduces and is easy to bending can be realized, for making production MHL transducer volume reduction and profile variation provide convenient, and the MHL signal high speed connector be electrically connected with described FPC, overcome ordinary connector impedance behavior in prior art low, the defect that electrical loss is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of MHL connection structural representation based on flexible PCB disclosed in the embodiment of the present invention;
Fig. 2 is a kind of MHL connection structural representation based on flexible PCB disclosed in further embodiment of this invention;
Fig. 3 is a kind of MHL connector construction schematic diagram based on flexible PCB disclosed in the embodiment of the present invention;
Fig. 4 is a kind of MHL converter structure schematic diagram based on flexible PCB disclosed in the embodiment of the present invention;
Fig. 5 is a kind of MHL connected system structural representation based on flexible PCB disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of MHL connection based on flexible PCB, connector, transducer and system, more flexible with the structural design realizing MHL connection, for the reduction of MHL connection volume and profile variation are provided convenience, and impedance behavior improves, the object that electrical loss reduces.
Fig. 1 shows a kind of MHL connection based on flexible PCB, comprising:
Copper foil layer 1, MHL differential signal strip line layer 2 and electromagnetic interference EMI screen 3 under flexible PCB, wherein:
Under described flexible PCB, copper foil layer 1 and described MHL differential signal strip line 2 layers bond;
Described EMI screen 3 is covered on described MHL differential signal strip line layer 2.
The flexible PCB FPC that in this embodiment, MHL connection can be used as in MHL transducer is overall, coordinate with MHL signal connector, utilize the characteristic of the frivolous softness of described electromagnetic interference EMI screen and anti-electromagnetism, achieve this jockey and easily bend, for FPC global design brings flexibly with convenient.
Fig. 2 shows another MHL connection based on flexible PCB, the MHL signal high speed connector 4 that described jockey also can be electrically connected with described MHL connection, is the MHL connector that include in the MHL transducer of described jockey and MHL signal connector 4 after being connected with described MHL signal high speed connector 4.
Fig. 3 shows a kind of MHL connector based on flexible PCB, it is characterized in that, comprising:
The interconnective MHL connection 5 based on flexible PCB and MHL signal connector 4;
The described MHL connection 5 based on flexible PCB comprises:
Copper foil layer 1, MHL differential signal strip line layer 2 and electromagnetic interference EMI screen 3 under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer 1 and described MHL differential signal strip line layer 2 bond;
Described EMI screen 3 is covered on described MHL differential signal strip line layer 2.
Preferably, described MHL signal connector 4 is specially MHL signal high speed connector.
The use of this MHL signal high speed connector, solve in prior art due under MHL serial signal higher transmission rates to the higher resistance requirement of MHL transducer, and achieve and reduce the technical purpose of electrical loss.
Fig. 4 shows a kind of MHL transducer based on flexible PCB, comprises;
MHL connector 6 and USB connector 7, described MHL connector 6 comprises:
Based on MHL connection 5 and the MHL signal connector 4 of flexible PCB;
The described MHL connection 5 based on flexible PCB comprises:
Copper foil layer 1, MHL differential signal strip line layer 2 and electromagnetic interference EMI screen 3 under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer 1 and described MHL differential signal strip line layer 2 bond;
Described EMI screen 3 is covered on described MHL differential signal strip line layer 2;
The described MHL signal connector of MHL connector is connected with described USB connector.
Preferably, described MHL signal connector 4 is specially MHL signal high speed connector.
Disclose in this embodiment and a kind ofly possess MHL signal high speed connector and produce based on the MHL connector of flexible PCB for making, and the MHL connection based on flexible PCB that MHL transducer is provided convenience.
Fig. 5 shows a kind of MHL connected system based on flexible PCB, comprising: portable equipment 8, external equipment 9 and the described MHL transducer 10 based on flexible PCB, and described transducer comprises:
The MHL connector 6 connected and USB connector 7, described MHL connector 6 comprises:
Based on MHL connection 5 and the MHL signal connector 4 of flexible PCB;
The described MHL connection 5 based on flexible PCB comprises:
Copper foil layer 1, MHL differential signal strip line layer 2 and electromagnetic interference EMI screen 3 under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer 1 and described MHL differential signal strip line layer 2 bond;
Described EMI screen 3 is covered on described MHL differential signal strip line layer 2;
Described portable equipment 8 is connected with described USB connector 7 by USB interface;
Described external equipment 9 is connected by the MHL connection 5 based on flexible PCB of MHL interface with the described MHL connector 8 based on flexible PCB.
As preferably, described MHL signal connector is specially MHL signal high speed connector.
It should be noted that, described portable equipment can be mobile phone, panel computer, and portable notebook etc. can store the equipment of high-definition audio and video resource; And described external equipment is television set or the display that can play high-definition audio and video and possess MHL interface, but above-mentioned form of enumerating is not limited to.
In sum:
Jockey in the embodiment of the present invention, MHL connection in connector and connected system bonds the strip line layer for transmitting MHL differential signal on the lower copper foil layer of flexible PCB, and EMI screen is covered on described MHL differential signal strip line layer, described EMI screen and described MHL differential signal strip line layer are the reference stratum of described MHL differential signal, good and the frivolous softness of quality of described EMI screen electric conductivity, the design needs that jockey thickness reduces and is easy to bending can be realized, for making production MHL transducer volume reduction and profile variation provide convenient, and the MHL signal high speed connector be electrically connected with described FPC, overcome ordinary connector impedance behavior in prior art low, the defect that electrical loss is high.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. based on a MHL connection for flexible PCB, it is characterized in that, comprising:
Copper foil layer, MHL differential signal strip line layer and electromagnetic interference EMI screen under flexible PCB, wherein:
Under described flexible PCB, copper foil layer and described MHL differential signal strip line layer bond;
Described EMI screen is directly covered on described MHL differential signal strip line layer.
2., as claimed in claim 1 based on the MHL connection of flexible PCB, it is characterized in that, the described MHL connection based on flexible PCB can be connected with the MHL signal high speed connector of MHL transducer.
3., based on a MHL connector for flexible PCB, it is characterized in that, comprising:
The interconnective MHL connection based on flexible PCB and MHL signal connector;
The described MHL connection based on flexible PCB comprises:
Copper foil layer, MHL differential signal strip line layer and electromagnetic interference EMI screen under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer and described MHL differential signal strip line layer bond;
Described EMI screen is directly covered on described MHL differential signal strip line layer.
4., as claimed in claim 3 based on the MHL connector of flexible PCB, it is characterized in that, described MHL signal connector is specially MHL signal high speed connector.
5. based on a MHL transducer for flexible PCB, it is characterized in that, comprising: MHL connector and USB connector, described MHL connector comprises:
Based on MHL connection and the MHL signal connector of flexible PCB;
The described MHL connection based on flexible PCB comprises:
Copper foil layer, MHL differential signal strip line layer and electromagnetic interference EMI screen under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer and described MHL differential signal strip line layer bond;
Described EMI screen is directly covered on described MHL differential signal strip line layer;
The described MHL signal connector of MHL connector is connected with described USB connector.
6., as claimed in claim 5 based on the MHL transducer of flexible PCB, it is characterized in that, described MHL signal connector is specially MHL signal high speed connector.
7. based on a MHL connected system for flexible PCB, it is characterized in that, comprising: portable equipment, external equipment and the described MHL transducer based on flexible PCB,
The described MHL transducer based on flexible PCB comprises:
The MHL connector connected and USB connector, described MHL connector comprises:
Based on MHL connection and the MHL signal connector of flexible PCB;
The described MHL connection based on flexible PCB comprises:
Copper foil layer, MHL differential signal strip line layer and electromagnetic interference EMI screen under flexible PCB FPC, wherein:
Under described flexible PCB, copper foil layer and described MHL differential signal strip line layer bond;
Described EMI screen is directly covered on described MHL differential signal strip line layer;
Described portable equipment is connected with described USB connector by USB interface;
Described external equipment is connected by the MHL connection based on flexible PCB of MHL interface with the described MHL connector based on flexible PCB.
8., as claimed in claim 7 based on the MHL connected system of flexible PCB, it is characterized in that, described MHL signal connector is specially MHL signal high speed connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223906.0A CN103515815B (en) | 2012-06-28 | 2012-06-28 | Based on the MHL connection of flexible PCB, connector, transducer and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223906.0A CN103515815B (en) | 2012-06-28 | 2012-06-28 | Based on the MHL connection of flexible PCB, connector, transducer and system |
Publications (2)
| Publication Number | Publication Date |
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| CN103515815A CN103515815A (en) | 2014-01-15 |
| CN103515815B true CN103515815B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210223906.0A Active CN103515815B (en) | 2012-06-28 | 2012-06-28 | Based on the MHL connection of flexible PCB, connector, transducer and system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063340A (en) * | 2021-03-30 | 2021-07-02 | 天津飞旋科技股份有限公司 | Inductance type displacement sensor |
| CN114552155B (en) * | 2022-04-25 | 2022-07-05 | 电子科技大学成都学院 | Dual-mode transmission line |
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| CN1106606A (en) * | 1993-08-06 | 1995-08-09 | 三菱电机株式会社 | Metal base board and elecronic equipment using the same |
| CN1575091A (en) * | 2003-06-04 | 2005-02-02 | 日东电工株式会社 | Wired circuit board |
| CN101111131A (en) * | 2006-07-19 | 2008-01-23 | 比亚迪股份有限公司 | Manufacturing method of multi-layer flexible circuit board |
| CN201479455U (en) * | 2009-04-16 | 2010-05-19 | 惠州国展电子有限公司 | Metal base flexible circuit copper-clad plate and metal base flexible circuit board |
| CN102387661A (en) * | 2010-08-31 | 2012-03-21 | 富葵精密组件(深圳)有限公司 | Circuit board substrate and manufacture method thereof |
| CN202276416U (en) * | 2011-10-11 | 2012-06-13 | 深圳市和宏实业有限公司 | Mobile high-definition link (MHL) converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491179B1 (en) * | 2001-11-21 | 2005-05-24 | 마츠시타 덴끼 산교 가부시키가이샤 | Thinned circuit substrate and its manufacturing method |
| CN101578009B (en) * | 2008-05-06 | 2010-12-29 | 富葵精密组件(深圳)有限公司 | Circuit board base film, circuit board substrate and circuit board |
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2012
- 2012-06-28 CN CN201210223906.0A patent/CN103515815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106606A (en) * | 1993-08-06 | 1995-08-09 | 三菱电机株式会社 | Metal base board and elecronic equipment using the same |
| CN1575091A (en) * | 2003-06-04 | 2005-02-02 | 日东电工株式会社 | Wired circuit board |
| CN101111131A (en) * | 2006-07-19 | 2008-01-23 | 比亚迪股份有限公司 | Manufacturing method of multi-layer flexible circuit board |
| CN201479455U (en) * | 2009-04-16 | 2010-05-19 | 惠州国展电子有限公司 | Metal base flexible circuit copper-clad plate and metal base flexible circuit board |
| CN102387661A (en) * | 2010-08-31 | 2012-03-21 | 富葵精密组件(深圳)有限公司 | Circuit board substrate and manufacture method thereof |
| CN202276416U (en) * | 2011-10-11 | 2012-06-13 | 深圳市和宏实业有限公司 | Mobile high-definition link (MHL) converter |
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| CN103515815A (en) | 2014-01-15 |
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