CN100566532C - The electromagnetic wave screening structure of display unit - Google Patents
The electromagnetic wave screening structure of display unit Download PDFInfo
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- CN100566532C CN100566532C CNB2005100457111A CN200510045711A CN100566532C CN 100566532 C CN100566532 C CN 100566532C CN B2005100457111 A CNB2005100457111 A CN B2005100457111A CN 200510045711 A CN200510045711 A CN 200510045711A CN 100566532 C CN100566532 C CN 100566532C
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Abstract
The present invention relates to a kind of plasma TV, particularly a kind of baffle conduction is connected the back side of vacuum fluorescent display, thereby shielding is by the electromagnetic wave screening structure of the electromagnetic display unit of device generation.The present invention installs the plasma display system of VFD-vacuum fluorescent display and forms by the built-in tuner with television set performance with for constituting the front display window; the back side at above-mentioned vacuum fluorescent display; the exterior face of covering vacuum fluorescence display; can be connected with the baffle of the contact site of the usefulness that contact such as bonnet and casing, supporting bracket/filter; thereby; the unwanted electromagnetic wave that in said apparatus, produces; be transmitted to bonnet and casing by above-mentioned baffle, can shield harmful electromagnetic wave toward external leakage.Have the effect of shielding unwanted electromagnetic wave, improve people the product reliability toward external leakage; Use various electronic products adjacent that also can stability and safety simultaneously with plasma TV.
Description
Technical field
The present invention relates to a kind of plasma TV, particularly a kind of baffle conduction is connected the back side of vacuum fluorescent display, thereby shielding is by the electromagnetic wave screening structure of the electromagnetic display unit of device generation.
Background technology
In general, PDP (Plasma display panel)--be that plasma display is used with big picture thin wall type display unit, because of reasons such as its complicated circuit problem developing based on the external monitor that do not contain tuner.
But along with the continuous development of technology, the plasma TV of built-in tuner is formally developed/has been produced, and in order to adapt to the needs of digital television broadcasting, develops the plasma TV of built-in tuner again.
The exploitation of Here it is plasma TV, beginning by industrial be transformed into home-use, thereby the continuous advanced trend at aspects such as design and performances has been arranged.
Wherein, do not use as if place the large-scale electronic console (LED) or the such display unit of LCD (LCD) of display unit in front, and use the VFD vacuum fluorescent display--utilize electronic impact fluorescent material under vacuum state and the display unit of principle of luminosity is the display unit of front, purpose is the difference that image is dwindled in attempt.
Fig. 1 is the schematic diagram of plasma TV structure that the vacuum fluorescent display of conventional art is equipped with in expression, in same figure, seen like that, be by plasma display assembly 10 by plasma TV of the present invention; For the casing 20 that above-mentioned plasma display assembly 10 is installed; Be installed in the lower end of said machine casing 20 and before constituting the VFD vacuum fluorescent display 30 of flat-panel display device portion form.
But, as described above, among the plasma TV of conventional art, along with a lot of electromagnetic wave and the noises of driving generation of assembly, and the electromagnetic wave of above-mentioned generation flows out to the outside of machine through various channels, thus the serious problems that people's health is damaged.
In addition, above-mentioned unwanted electromagnetic wave not only to people's health harmful outside, and other electronic product that is connected with plasma TV also had bad influence, therefore can bring out the electronic product failure problems.
Fig. 2 is illustrated in to measure electromagnetic result curve figure among the conventional art, by curve chart just can see like that, can confirm electromagnetic wave gauge 100MHz above home-use electronics product.
Especially, see on the position of 87MHz and exceeding more than the 4dB.
At this moment, see that the electromagnetic wave rising is very big on the position of 243MHz (high-frequency region), because the influence of the factors such as connection status of the assembling of device and cable produces.
As described above, on the electromagnetic path of a large amount of outflows, use and detect the result that meter detects, what flow out between the viewing area of A/V (audio/video) socket that installs the front and VFD vacuum fluorescent display formation is a lot.
So, too much electromagnetic wave flows out, and not only the safety to the user has outside the threat, and is that production marketing institute itself is unallowed, thereby causes very big loss, solves these problems so an urgent demand takes some countermeasures.
Summary of the invention
The present invention puts forward in order to solve the above problems, the purpose of this invention is to provide unwanted electromagnetic wave that a kind of shielding produced toward external leakage from plasma TV, prevent from human body and peripheral electronic product are caused the electromagnetic wave screening structure of dysgenic display unit.
To achieve the above object, technical scheme of the present invention is installed the plasma display system and the baffle of VFD-vacuum fluorescent display and is formed by the built-in tuner with television set performance with for constituting the front display window,
Baffle is made with the form that covers above-mentioned vacuum fluorescent display outside; on baffle, make can with bonnet and casing, the contacted contact site of supporting bracket/filter; thereby; with the unwanted electromagnetic wave that produces among this device; be transmitted to bonnet and casing by above-mentioned baffle, can shield unwanted electromagnetic wave toward external leakage.
Above-mentioned baffle is being made the support cover plate with the opposite face at the vacuum fluorescent display back side; prolong part in both sides to the left and right by above-mentioned support cover plate; make the joint portion that can combine separately with the casing joint portion of vacuum fluorescent display; and on above-mentioned joint portion extended again position; make the casing joint portion that can contact with bottom of shell; on the front-back of above-mentioned support cover plate, make the joint portion that can contact and the supporting bracket that contacts with supporting bracket/filter/filter contact site with bonnet.
Above-mentioned baffle is to make with the material of good conductivity.
Above-mentioned vacuum fluorescent display itself insulate fully.
Also have, make with elastic material, when contacting, can keep its elastic force with casing, bonnet, supporting bracket/filter etc. because of above-mentioned baffle.
The present invention has following advantageous effect:
The first, at the back side of vacuum fluorescent display, be connected with the baffle of covering vacuum fluorescence display outside; unwanted electromagnetic wave by generation among the device; be transmitted to parts such as above-mentioned bonnet and casing by above-mentioned baffle, so, the effect of shielding unwanted electromagnetic wave toward external leakage arranged.
The second, along with effective shielding of unwanted electromagnetic wave, the electromagnetic uneasy mood that is harmful to the person has been removed, so, have and improve the effect of people the product reliability.
The 3rd, along with effective shielding of unwanted electromagnetic wave, outside not only health being safe from harm, the effect that the various electronic products adjacent with plasma TV also can stability and safety use.
Description of drawings
Fig. 1 is the schematic diagram of plasma TV structure that the vacuum fluorescent display of conventional art is equipped with in expression.
Fig. 2 is illustrated among the conventional art, measures electromagnetic result curve figure.
Fig. 3 is the schematic rear view that the plasma TV of baffle structure is housed of the present invention.
Fig. 4 is to use under the baffle state of the present invention, measures electromagnetic result curve figure.
Explanation to drawing major part symbol:
10: plasma display assembly; 20: casing;
21: the casing turnbuckle; 30: vacuum fluorescent display;
31: the casing joint portion; 40: baffle;
41: support cover plate; 42: the joint portion;
41a: connecting hole; 43: the casing contact site;
44: the bonnet contact site; 45: supporting bracket/filter contact site.
Below, embodiments of the invention are described in detail as follows with reference to accompanying drawing.The part identical with traditional structure is with same symbol on drawing.
Embodiment
Fig. 3 is the schematic rear view that the plasma TV of baffle structure is housed of the present invention.
As seeing at same drawing, plasma TV of the present invention is by plasma display assembly 10; For the casing 20 that above-mentioned plasma display assembly 10 is installed; Be installed in the lower end of said machine casing 20 and form the vacuum fluorescent display 30 of front display window; The baffle 40 that is connected in the above-mentioned vacuum fluorescent display back side is formed.
Also have, above-mentioned vacuum fluorescent display 30 is electronic impact fluorescent material and display unit of principle of luminosity under vacuum state, and about vacuum fluorescent display, hold the joint portion 31 that can combine made from casing 20, and on joint portion 31, make the combined hole 31a composition of the usefulness that can be connected with the casing turnbuckle 21 of casing 20.
At this moment, above-mentioned vacuum fluorescent display 30 is done as a whole and is made, and wishes itself to insulate fully.
Also have; the form of above-mentioned baffle 40 covering vacuum fluorescence displays (VFD) 30 exterior faces is made; on baffle, make can with contacted contact sites 43,44,45 such as bonnet and casing, supporting bracket/filter; so; the unwanted electromagnetic wave that among said apparatus, produces; be transmitted to bonnet (not shown) and casing 20 by above-mentioned baffle 40, and shielded unwanted electromagnetic wave.
The more detailed words that describe, making support cover plate 41 with the back side opposite face of vacuum fluorescent display 30, and about above-mentioned support cover plate 41, prolong part, make the joint portion 42 that is connected with the casing fixed part 31 of vacuum fluorescent display 30 separately, be shaped on pilot hole 42a on it, prolongation part in above-mentioned joint portion 42, make and the contacted contact site 43 of bottom of shell, on the front-back of above-mentioned support cover plate 41, make the contact site 45 that can combine with supporting bracket/filter with the contacted contact site 44 of bonnet, these do as a whole making.
At this; in order to improve conductivity; wish that the material of baffle 40 usefulness good conductivity manufactures; in order to keep in casing 20, bonnet (not shown), supporting bracket/filter contact; has suitable pressure; requirement should have suitable elastic force at each contact site 43,44,45, so, wish to make of elastomeric material.
Fig. 4 is to use under the baffle state of the present invention, measures electromagnetic result curve figure.
Be illustrated in the data on the above-mentioned curve chart; be to be equipped with under the state that guarantor of the present invention expands plate 40; carry out the data of testing result; can confirm that by curve chart the electromagnetic generating capacity that is equipped with under baffle 40 states of the present invention is with interior at the permission gauge K-K of the sub-product of household electricity line.
Especially can confirm on the frequency band of 87Mhz, to exceed traditional 4dB part, significantly reduce.
As described above; baffle 40 of the present invention; the back side at vacuum fluorescent display 30; cover the exterior face of above-mentioned vacuum fluorescent display 30 and connect; and, make as a whole each contact site 43,44,45 and contact and coupled together with casing 20, bonnet, supporting bracket/filter with elastic force.
Claims (5)
1; a kind of electromagnetic wave screening structure of display unit; the plasma display system and the baffle of VFD-vacuum fluorescent display are installed are formed by built-in tuner with for constituting the front display window with television set performance; it is characterized in that: baffle is made with the form that covers above-mentioned vacuum fluorescent display outside; on baffle, make can with bonnet and casing; the contacted contact site of supporting bracket/filter; thereby; with the unwanted electromagnetic wave that produces among this device; be transmitted to bonnet and casing by above-mentioned baffle, just can shield harmful electromagnetic wave toward external leakage.
2; electromagnetic wave screening structure according to claim 1; it is characterized in that above-mentioned baffle making the support cover plate with the opposite face at the vacuum fluorescent display back side; prolong part in both sides to the left and right by above-mentioned support cover plate; make the joint portion that can combine separately with the casing joint portion of vacuum fluorescent display; and on above-mentioned joint portion extended again position; make the casing contact site that can contact with bottom of shell; on the front-back of above-mentioned support cover plate, make can with the contacted contact site of bonnet and the supporting bracket that contacts with supporting bracket/filter/filter contact site.
3, electromagnetic wave screening structure according to claim 1 is characterized in that above-mentioned baffle is to make with the material of good conductivity.
4, electromagnetic wave screening structure according to claim 1 is characterized in that above-mentioned vacuum fluorescent display itself insulate fully.
5, electromagnetic wave screening structure according to claim 1 is characterized in that above-mentioned baffle is to make with elastic material, makes it with casing, bonnet, when supporting bracket/filter contacts, keeping suitable elastic force on each contact site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457111A CN100566532C (en) | 2005-01-20 | 2005-01-20 | The electromagnetic wave screening structure of display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100457111A CN100566532C (en) | 2005-01-20 | 2005-01-20 | The electromagnetic wave screening structure of display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1809267A CN1809267A (en) | 2006-07-26 |
| CN100566532C true CN100566532C (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100457111A Expired - Fee Related CN100566532C (en) | 2005-01-20 | 2005-01-20 | The electromagnetic wave screening structure of display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100566532C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180079550A (en) * | 2016-12-30 | 2018-07-11 | 엘지디스플레이 주식회사 | Display panel |
| CN108617155B (en) * | 2018-04-20 | 2019-07-23 | 浙江大学 | A kind of full angle absorbing material of spatial dispersion and preparation method thereof |
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2005
- 2005-01-20 CN CNB2005100457111A patent/CN100566532C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1809267A (en) | 2006-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING LG XINGANG DISPLAY CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS (SHENYANG) CO., LTD. Effective date: 20070316 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20070316 Address after: 210038 No. 346 Yao Yao Avenue, Nanjing economic and Technological Development Zone, Jiangsu, China Applicant after: LG Electronics Nanjing Display Co., Ltd. Address before: 110179 No. 3540 hi tech Development Zone, Liaoning, Shenyang Applicant before: LG Electronic (Shenyang) Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20110120 |