CN201378444Y

CN201378444Y - Displayport connecting cable

Info

Publication number: CN201378444Y
Application number: CN200820205327U
Authority: CN
Inventors: 白建文
Original assignee: LINOYA ELECTRONICS CO Ltd
Current assignee: LINOYA ELECTRONICS CO Ltd
Priority date: 2008-12-16
Filing date: 2008-12-16
Publication date: 2010-01-06
Anticipated expiration: 2018-12-16

Abstract

The utility model relates to a displayport connecting cable which comprises five high frequency signal line pairs, a plurality of power wires as well as an outer aluminium foil layer, a weaving layer and an insulating outer cover that are sequentially covered outside the high frequency signal line pairs and the power wires; wherein a containing space is surrounded by the five high frequency signal line pairs and is internally filled with molding matter, and each high frequency signal line pair comprises a second signal line, an earth wire and a hot melting mylar layer used for covering the second signal line and the earth wire, wherein the second signal line is also covered by an inner aluminium foil layer. Therefore, the five high frequency signal line pairs are covered by two layers which are the inner aluminium foil layer and the hot melting mylar layer, so as to have better isolation effect, thus achieving better high frequency transmission performance.

Description

The Displayport connection cable

Technical field

The utility model relates to a kind of connection cable, refers in particular to a kind of DisplayPort connection cable.

Background technology

Along with high definition (HD) technology continues in consumer electronics and the development of demonstration field, the high-definition multimedia digital interface technology that is used to connect HD equipment also improves constantly thereupon, from traditional DVI interface (digital visual interface) to existing HDMI interface (HDMI (High Definition Multimedia Interface)), whole process grows in intensity, arriving along with the high definition epoch, the conventional video interface can't be satisfied the demand, the unification of the audio-video interface of PC and household electrical appliances is imperative, current, DisplayPort is again a kind of new digital display interface standard, its available bandwidth is just up to 10.8Gb/s, and the bandwidth of existing HDMI 1.2a only is 4.95Gb/s, even if the bandwidth (10.2Gb/s) that the HDMI of up-to-date issue 1.3 is provided also is slightly poorer than DisplayPort1.0, so following DisplayPort will occupy very big advantage, become high-definition digital interface of future generation gradually.

DisplayPort allows cable transmission of audio ﹠ video signal common, support multiple high-quality digital audio, it also can realize more function on a cable, for example outside four main transmission channels, DisplayPort also provides a powerful accessory channel, so the design of Dislpayport connection cable will particularly important, how to realize its more strong functions will become the current problem that is needed to be resolved hurrily of industry.

The utility model content

The utility model main purpose is to provide a kind of DisplayPort connection cable with better high-frequency transmission performance.

For realizing above-mentioned purpose, the utility model is taked following technical scheme:

A kind of DisplayPort connection cable, comprise that five groups of high-frequency signals lines are to, complex root power line and be wrapped in this high-frequency signals line successively to, outer outer aluminium foil layer, braid and the outer quilt of insulation of power line, these five groups of high-frequency signals lines are to surrounding an accommodation space, be filled with article shaped in this accommodation space, each high-frequency signals line draws layer to the hot melt wheat that includes two signal line, an earth connection and wrap up this two signal line, earth connection, and wherein this two signal line is respectively also by aluminium foil layer parcel in.

The utility model advantage is that each high-frequency signals line draws layer to carry out the mode of two layers of parcel to all having adopted interior aluminium foil layer parcel and hot melt wheat, makes each high-frequency signals line to being able to isolation effect better, thereby can reach better high-frequency transmission performance.

Description of drawings

Fig. 1 is the utility model DisplayPort connection cable schematic cross-section.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, a kind of DisplayPort connection cable, comprise five groups of high-frequency signals lines to 1, complex root power line 2 and be wrapped in successively this high-frequency signals line to 1, outer outer aluminium foil layer 3, braid 4 and the insulation of power line 2 be outer by 5, these five groups of high-frequency signals lines surround an accommodation space 6 to 1, be filled with article shaped 7 in this accommodation space 6, wherein, the hot melt wheat that each high-frequency signals line includes two signal line 11, an earth connection 12 to 1 and wraps up this two signal line 11, earth connection 12 is drawn layer 8, and wherein this two signal line 11 is respectively also by aluminium foil layer 9 parcels in.

So, the utility model cable is through facts have proved, its characteristic is as follows: insulation resistance can reach 100Mohms-km@20 ℃, proof voltage 500VAC/ branch is planted and is not punctured, meet the UL1581 requirement, and characteristic impedance is controlled at 100 ± 5 Ω, postpone difference all≤50PS/Cable, when using, far-end crosstalk, meets the standard of DisplayPortStandard Version 1.1 less than-35 decibels between 0.1-7GHz.By this, the utility model design focal point is that each high-frequency signals line draws layer to carry out the mode of two layers of parcel to all having adopted interior aluminium foil layer parcel and hot melt wheat, makes each high-frequency signals line to being able to isolation effect better, thereby can reach better high-frequency transmission performance.

The above, it only is the preferred embodiment of the utility model structure, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of DisplayPort connection cable, comprise that five groups of high-frequency signals lines are to, complex root power line and be wrapped in this high-frequency signals line successively to, outer outer aluminium foil layer, braid and the outer quilt of insulation of power line, these five groups of high-frequency signals lines are to surrounding an accommodation space, be filled with article shaped in this accommodation space, it is characterized in that: each high-frequency signals line draws layer to the hot melt wheat that includes two signal line, an earth connection and wrap up this two signal line, earth connection, and wherein this two signal line is respectively also by aluminium foil layer parcel in.