CN102043438B - Electronic system - Google Patents
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- CN102043438B CN102043438B CN2009102082486A CN200910208248A CN102043438B CN 102043438 B CN102043438 B CN 102043438B CN 2009102082486 A CN2009102082486 A CN 2009102082486A CN 200910208248 A CN200910208248 A CN 200910208248A CN 102043438 B CN102043438 B CN 102043438B
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Abstract
The invention provides an electronic system. The electronic system comprises a display device and a data processing device, wherein the display device is connected with the data processing device and is provided with an antenna and a metal framework; the data processing device is provided with a coaxial cable extending to the display device; the coaxial cable is coupled with the antenna and feedsa signal in the antenna from the data processing device; and a part of a metal shielding layer of the coaxial cable is stripped and exposed and electrically connected with the metal framework through an electric conduction adhesive plaster, and the electric conduction adhesive plaster is longer than the 1/120 wave of the antenna high frequency centre frequency, so as to inhibit reverse current so as to improve the radiation efficiency of the antenna.
Description
Technical field
The invention belongs to screen and have the field of electronic systems of built-in aerial, relate in particular to a kind of will be exposed in order to the part of the metal shielding layer of the coaxial wire that transmits aerial signal, and the electronic system that electrically conducts with the metal framework of display screen.
Background technology
Along with wireless telecommunication system is integrated progress, the mobile computer built-in aerial is made wireless transmission and is propagated its belief on a large scale at present.Most built-in aerial is arranged in the screen of mobile computer, and the transmitter module end transmits signals to antenna through coaxial wire.Because antenna and coaxial wire overall package framework are non-equilibrium mode; Make that when practical operation, having reverse current (reverse current) goes up at the metal shielding layer (shielding) of coaxial wire and flow, make coaxial wire in mobile computer, can bring out induction (induce) during cabling and go out electric current and the radiator current opposite in direction of antenna on the metal framework.The part of above-mentioned radiator electric current can be cancelled out each other with reverse current, makes the radiation efficiency of antenna lower, and waste real the genus on the energy.If can suppress promptly the have an opportunity aerial radiation enhancing efficiency that makes of reverse current.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of electronic system, and the built-in aerial that is intended to solve the prior art mobile computer causes the problem of aerial radiation usefulness reduction because of the metal shielding layer at coaxial wire produces reverse current.
Be achieved in that a kind of electronic system in the embodiment of the invention, said electronic system comprises:
One data processing equipment; And
One display device; It connects said data processing equipment; Said display device comprises display pannel, an antenna and the concentric cable line with a metal framework; Said coaxial wire couples said antenna and said data processing equipment, and signal is fed into said antenna from said data processing equipment, and the metal shielding layer of said coaxial wire electrically connects with said metal framework mutually.Wherein, The part of the metal shielding layer of said coaxial wire is divested and is exposed; The exposed part of said metal shielding layer electrically conducts through a conducting adhesive cloth and said metal framework, and the length of said conducting adhesive cloth is greater than 1/120 wavelength of the high-frequency operation centre frequency of said antenna.
Said display device also comprises a loam cake, a lower cover and a sheet metal, and said display pannel is sandwiched between said loam cake and the said lower cover, and said sheet metal is sandwiched between said lower cover and the said display pannel.
The ground plane of said antenna is sandwiched between said display pannel and the said lower cover, electrically connects with said sheet metal.
When said antenna operates, the induction current that produces on the said metal framework, the current opposite in direction on the radiator of said faradic direction of current and antenna.
The scope of said metal framework is greater than said sheet metal.
The exposed part of said metal shielding layer welds with said metal framework mutually, electrically conducts with said metal framework.
Said metal framework is a hollow out shape.
In embodiments of the present invention; When antenna operates; Wherein produce induction current on the metal framework, and the direction of current on the radiator of faradic direction of current and antenna is opposite haply, the exposed part of metal shielding layer electrically is conducted with metal framework through a conducting adhesive cloth (or welding); So can suppress the generation of reverse current, promote the advantage of aerial radiation usefulness.
Description of drawings
Fig. 1 is the synoptic diagram of the mobile computer that provides of the embodiment of the invention;
Fig. 2 is the exploded view of the display device of the electronic system that provides of the embodiment of the invention;
Fig. 3 A and 3B are respectively structure and the antenna structure for amplifying synoptic diagram after the display device loam cake of the electronic system that provides of the embodiment of the invention removes;
Fig. 4 is the vertical view behind the display pannel that removes of the electronic system that provides of the embodiment of the invention;
Fig. 5 is the electronic system that provides of the embodiment of the invention at the conducting adhesive cloth synoptic diagram before the clad metal shielding layer not;
Fig. 6 is the synoptic diagram that the metal shielding layer of the coaxial wire of the electronic system that provides of the embodiment of the invention is welded on the metal framework of display screen;
Fig. 7 is the metal shielding layer of the conducting adhesive cloth coating cable that provides of the embodiment of the invention and the process flow diagram of metal framework.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1 and Fig. 2, the exploded view of the synoptic diagram of the electronic system that provides for the embodiment of the invention and the display device of electronic system.Of Fig. 1, said electronic system comprises: a display device 1 and a data processing equipment 2, display device 1 is used for the data that display data processing apparatus 2 was handled.Of Fig. 2, display device 1 included assembly from top to bottom comprises a loam cake 4, a display pannel 5, a sheet metal 6 and a lower cover 7 successively.Wherein, display pannel is clipped between loam cake 4 and the lower cover 7, and sheet metal 6 is sandwiched between lower cover 4 and the display pannel 5.Display pannel 5 has a metal framework 51, and the scope of metal framework 51 is preferably greater than sheet metal 6.Said metal framework is a hollow out shape.
See also Fig. 3 A and 3 B and Fig. 4, the plan structure that it shows structure, the antenna structure for amplifying after the display device loam cake of electronic system of the present invention removes respectively and removes display pannel.Coaxial wire 3 connects data processing apparatus 2 and antenna 8 along the edge of lower cover 7, be used for transmitting high-frequency signals from data processing equipment 2 and be fed into antenna 8.Wherein, the thickness of metal framework 51 is preferably the thickness greater than coaxial wire 3.Coaxial wire 3 includes conducting stratum 31, plastic layer 32 and metal shielding layer 33, and wherein conducting stratum 31 is coated by plastic layer 32, and the part of metal shielding layer 33 is divested and expose, and electrically conducts with metal framework 51.Wherein, metal framework 51 is the thickness of the thickness of a hollow out shape and metal framework 51 greater than coaxial wire 3.Wherein, the exposed part of metal shielding layer 33 electrically conducts through a conducting adhesive cloth and metal framework 51, and perhaps the exposed part of metal shielding layer 33 welds with metal framework 51 mutually, to reach the effect of electric connection.
Antenna 8 includes one first radiator 81, one second radiator 82, a ground plane 83 and a load point 84.Ground plane 83 is sandwiched between display pannel 5 and the lower cover 7, and electrically connects with sheet metal 6 shown in Figure 2, to reach the ground connection effect.Wherein, first radiator 81 and second radiator 82 are preferably with metal framework 51 not overlapped.Because metal shielding layer 33 electrically conducts with metal framework 51; During antenna 8 runnings; Can effectively reduce an induction current 52 that induces on the metal framework 51; Thereby avoid causing the electric current of first radiator 81 and second radiator 82 and the induction current on the metal framework 51 to offset, and then keep antenna performance.
See also Fig. 5, for electronic system of the present invention at the conducting adhesive cloth synoptic diagram before the clad metal shielding layer 33 not.Among the figure, be connected with the exposed part of metal shielding layer 33 and electrically conduct each other through conducting adhesive cloth 9.Wherein, the distance (d1) between the signal feed-in point 84 of the position of conducting adhesive cloth 9 and antenna 8 is preferably the wavelength less than the low frequency operation center frequency of antenna 8.Wherein, the length of conducting adhesive cloth 9 (d2) is preferably 1/120 wavelength greater than the high-frequency operation centre frequency of antenna 8.
See also Fig. 6, it shows that metal shielding layer of the present invention is welded on the synoptic diagram of the metal framework of display screen.Among the figure, the exposed part of metal shielding layer 33 welds with metal framework 51 mutually, forms pad 10; When electric current is conducted; Partial Inverse electric current on the coaxial wire 3 can flow in the metal framework 51 along with pad 10, and then reduces the influence of reverse current to antenna, promotes the usefulness of antenna.Wherein the distance (d1+d3) between the signal feed-in point 84 of pad 10 and antenna 8 is preferably the wavelength less than the low frequency operation center frequency of antenna 8; Wherein d1 is the distance of signal feed-in point 84 and one second pad 34; D3 is the distance of first pad 10 and one second pad 34, and wherein second pad 34 is the ground plane 83 of antenna and the weld of the metal shielding layer 33 of coaxial wire.Can learn that by the experimental data form (like following table) of voltage standing wave ratio (VSWR) (VSWR) metal shielding layer 33 with coaxial wire is welded on metal framework 51 (table one) and metal shielding layer 33 when not being conducted and is welded on metal framework 51 when being conducted (table two), the antenna performance that is conducted increases by 7～10% efficiency ratio than the antenna performance of not conducting.
Table one
The metal shielding layer is not conducted with metal framework
Table two
Metal shielding layer and metal framework are conducted
See also Fig. 5 and Fig. 7, Fig. 7 is the metal shielding layer of conducting adhesive cloth coating cable of the present invention and the process flow diagram of metal framework.Among the figure; Its step is following: step S1; Prepare the good completed antenna of band girdle earlier, wherein call wire 31 length of coaxial wire are that plastic layer 32 length of 1mm, coaxial wire are that metal shielding layer 33 length of 2mm, coaxial wire are 17mm and length of side 1.5mm square conductive adhesive plaster; Step S2 tears conducting adhesive cloth and encases braiding behind the release liners 10mm toward middle; Step S3 is close to metal framework with cable earlier; Step S4 tears and touch the metal framework side to remaining release liners.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an electronic system is characterized in that, said electronic system comprises:
One data processing equipment; And
One display device; It connects said data processing equipment; Said display device comprises display pannel, an antenna and the concentric cable line with a metal framework, and said coaxial wire couples said antenna and said data processing equipment, and signal is fed into said antenna from said data processing equipment; And the metal shielding layer of said coaxial wire electrically connects with said metal framework mutually
Wherein, The part of the metal shielding layer of said coaxial wire is divested and is exposed; The exposed part of said metal shielding layer electrically conducts through a conducting adhesive cloth and said metal framework, and the length of said conducting adhesive cloth is greater than 1/120 wavelength of the high-frequency operation centre frequency of said antenna.
2. electronic system as claimed in claim 1; It is characterized in that; Said display device also comprises a loam cake, a lower cover and a sheet metal, and said display pannel is sandwiched between said loam cake and the said lower cover, and said sheet metal is sandwiched between said lower cover and the said display pannel.
3. electronic system as claimed in claim 2 is characterized in that, the ground plane of said antenna is sandwiched between said display pannel and the said lower cover, electrically connects with said sheet metal.
4. electronic system as claimed in claim 3 is characterized in that, when said antenna operates, produces induction current on the said metal framework, the current opposite in direction on the radiator of said faradic direction of current and said antenna.
5. electronic system as claimed in claim 2 is characterized in that the scope of said metal framework is greater than said sheet metal.
6. electronic system as claimed in claim 1 is characterized in that, said metal framework is a hollow out shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102082486A CN102043438B (en) | 2009-10-15 | 2009-10-15 | Electronic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102082486A CN102043438B (en) | 2009-10-15 | 2009-10-15 | Electronic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102043438A CN102043438A (en) | 2011-05-04 |
| CN102043438B true CN102043438B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102082486A Active CN102043438B (en) | 2009-10-15 | 2009-10-15 | Electronic system |
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| Country | Link |
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| CN (1) | CN102043438B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425894A (en) * | 2013-08-21 | 2015-03-18 | 耀登科技股份有限公司 | Multifrequency antenna, and mobile communication apparatus with multifrequency antenna |
| WO2018190808A1 (en) * | 2017-04-11 | 2018-10-18 | Hewlett-Packard Development Company, L.P. | Antennas in frames for display panels |
| CN111756896B (en) * | 2020-06-02 | 2021-10-01 | Oppo广东移动通信有限公司 | Glass shell assembly, manufacturing method thereof and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619419Y (en) * | 2003-05-28 | 2004-06-02 | 广达电脑股份有限公司 | Portable radio device |
| CN1513218A (en) * | 2001-05-29 | 2004-07-14 | �Ҵ���˾ | Integrated antenna for laptop application |
| CN101271353A (en) * | 2007-03-19 | 2008-09-24 | 联想（新加坡）私人有限公司 | Portable computer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI350027B (en) * | 2007-12-31 | 2011-10-01 | Htc Corp | Electronic apparatus with hidden antenna |
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2009
- 2009-10-15 CN CN2009102082486A patent/CN102043438B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513218A (en) * | 2001-05-29 | 2004-07-14 | �Ҵ���˾ | Integrated antenna for laptop application |
| CN2619419Y (en) * | 2003-05-28 | 2004-06-02 | 广达电脑股份有限公司 | Portable radio device |
| CN101271353A (en) * | 2007-03-19 | 2008-09-24 | 联想（新加坡）私人有限公司 | Portable computer |
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| Publication number | Publication date |
|---|---|
| CN102043438A (en) | 2011-05-04 |
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