CN105407689A - Liquid crystal display screen having dust prevention and cooling functions - Google Patents
Liquid crystal display screen having dust prevention and cooling functions Download PDFInfo
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- CN105407689A CN105407689A CN201510783954.9A CN201510783954A CN105407689A CN 105407689 A CN105407689 A CN 105407689A CN 201510783954 A CN201510783954 A CN 201510783954A CN 105407689 A CN105407689 A CN 105407689A
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- way ventilating
- ventilating film
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Abstract
The invention discloses a liquid crystal display screen having dust prevention and cooling functions. The liquid crystal display screen comprises a display screen body, a backlight plate and a shell, wherein a first ventilation passage is formed between the shell and the backlight plate, a first accommodating cavity and a second accommodating cavity are arranged in the shell, and an air inlet hole, an exhaust hole, a first through hole, a second through hole and a third through hole are formed on the shell. The liquid crystal display screen has the advantages of dust removal, temperature reduction and high cooling effect, and is convenient to use.
Description
Technical field
The present invention relates to display screen technology field, particularly relate to a kind of LCDs with dust-proof radiating function.
Background technology
LCDs is in the middle of the glass that two panels is parallel, place liquid crystal, has the tiny electric wire of many vertical and levels, control shaft-like crystal molecular changes direction, light refraction is out produced picture through whether being energized in the middle of two sheet glass.Because liquid crystal material itself is not luminous, so be all provided with the fluorescent tube as light source on display screen both sides, and have one piece of backlight and reflective membrane at the LCDs back side, backlight by fluorescent material form can emission of light, its effect mainly provides uniform background light source.The light that backlight sends enters the liquid crystal layer comprising thousands of liquid crystal droplet after passing ground floor polarization filter layer.
But when concrete enforcement, heat will inevitably be produced when electrified light emitting as backlight system that can be luminous, and backlight system another as be integrated in LCDs, so adopt its overall heat of the LCDs of this structure inevitable very high, especially when backlight system power is larger, its heat has often reached the unacceptable stage of user, and this is the major defect for conventional art.
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention proposes a kind of LCDs with dust-proof radiating function, good heat dissipation effect.
There is a LCDs for dust-proof radiating function, comprise display screen body, backlight and housing, between housing and backlight, form the first vent passages; Be provided with the first container cavity, the second container cavity in housing, housing is provided with air admission hole, steam vent, the first through hole, the second through hole, third through-hole;
Also comprise distortion sheet, magnetostrictive effect film, coil, the first one-way ventilating film, the second one-way ventilating film, the 3rd one-way ventilating film, the 4th one-way ventilating film be made up of elastomeric material;
Distortion sheet to be placed in the first container cavity and to be tightly connected with the sidewall of housing, and the first container cavity is divided into the first space and second space by distortion sheet;
Magnetostrictive effect film is arranged on distortion sheet, and coil is arranged on the side of magnetostrictive effect film, and coil is connected with external power source;
First one-way ventilating film is placed in the first space, and the first one-way ventilating film has two kinds of location statuss, and when the first one-way ventilating film is in primary importance state, the first space is in communication with the outside by air admission hole; When the first one-way ventilating film is in second place state, the first one-way ventilating membrane closure air admission hole;
Second one-way ventilating film is placed in the second container cavity, and the second one-way ventilating film has two kinds of location statuss, and when the second one-way ventilating film is in primary importance state, the first space is communicated with the second container cavity by the first through hole; When the second one-way ventilating film is in second place state, the second one-way ventilating membrane closure first through hole;
3rd one-way ventilating film is placed in second space, and the 3rd one-way ventilating film has two kinds of location statuss, and when the 3rd one-way ventilating film is in primary importance state, the second container cavity is communicated with second space by the second through hole; When the 3rd one-way ventilating film is in second place state, the 3rd one-way ventilating membrane closure second through hole;
4th one-way ventilating film is placed in the first vent passages, and the 4th one-way ventilating film has two kinds of location statuss, and when the 4th one-way ventilating film is in primary importance state, second space is communicated with the first vent passages by third through-hole; When the 4th one-way ventilating film is in second place state, the 4th one-way ventilating membrane closure third through-hole;
First vent passages is communicated with steam vent.
Preferably, form the second vent passages between display screen body and backlight, the second vent passages is communicated with steam vent;
Housing is also provided with fourth hole;
Also comprise the 5th one-way ventilating film, 5th one-way ventilating film is placed in the second vent passages, 5th one-way ventilating film has two kinds of location statuss, and when the 5th one-way ventilating film is in primary importance state, second space is communicated with the second vent passages by fourth hole; When the 5th one-way ventilating film is in second place state, the 5th one-way ventilating membrane closure fourth hole.
Preferably, the second vent passages becomes S type to arrange.
Preferably, the first vent passages becomes S type to arrange.
Preferably, also comprise dust cover, dust cover to be arranged on housing and to cover air admission hole.
Preferably, also comprise temperature sensor, controller, frequency converter, controller is connected with temperature sensor, frequency converter, and above-mentioned coil is connected with external power source by frequency converter; Temperature sensor is for obtaining the temperature information value of environment residing for backlight, and controller is used for the said temperature value of information and preset temperature value to compare, and controls the operating state of frequency converter according to comparative result.
Preferably, when temperature information value is greater than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for increasing electric current in coil; When temperature information value is less than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for reducing electric current in coil.
In the present invention, in coil, pass into electric current, allow coil produce magnetic field, drive magnetostrictive effect film to move by magnetic field force, and then the distortion of band dynamic deformation sheet, by constantly changing sense of current in coil, drive distortion sheet repeated deformation; When being out of shape sheet compression second space, outside air is pushed the first one-way ventilating film open and is entered the first space, Compressed Gas in second space pushes the 4th one-way ventilating film open, the 5th one-way ventilating film enters in the first vent passages, the second vent passages, then discharges from steam vent; When being out of shape sheet and compressing the first space, Compressed Gas in first space is pushed the second one-way ventilating film open and is entered the second container cavity, push the 3rd one-way ventilating film when gas pressure in second container cavity is excessive open and enter second space, iterative cycles like this, backlight is lowered the temperature, dispels the heat, ensure whole LCDs result of use, improve useful life; The design of total, structure is simple, uses convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
It should be noted that, when not conflicting, the combination that the embodiment in the application and the feature in embodiment can be mutual; And the present invention is elaborated below with reference to the accompanying drawings in conjunction with the embodiments.
With reference to Fig. 1:
A kind of LCDs with dust-proof radiating function that the present invention proposes, comprises display screen body 1, backlight 2 and housing 3, forms the first vent passages 4 between housing 3 and backlight 2, form the second vent passages 19 between display screen body 1 and backlight 2; Be provided with the first container cavity 5, second container cavity 6 in housing 3, housing 3 is provided with air admission hole 7, steam vent 8, first through hole 9, second through hole 10, third through-hole 11, fourth hole 20; First vent passages 4, second vent passages 19 is communicated with steam vent 8.
The present embodiment also comprises distortion sheet 12, magnetostrictive effect film 13, coil 14, first one-way ventilating film 15, second one-way ventilating film 16, the 3rd one-way ventilating film 17, the 4th one-way ventilating film 18, the 5th one-way ventilating film 21 be made up of elastomeric material; First one-way ventilating film 15, second one-way ventilating film 16, the 3rd one-way ventilating film 17, the 4th one-way ventilating film 18, the 5th one-way ventilating film 21 all become cantilever beam structure design with the sidewall of housing 3, i.e. side walls hinged all with housing 3 of their respective one end; Distortion sheet 12 deforms under the effect of external force.
Distortion sheet 12 to be placed in the first container cavity 5 and to be tightly connected with the sidewall of housing 3, and the first container cavity 5 is divided into the first space 501 and second space 502 by distortion sheet 12.
Magnetostrictive effect film 13 is arranged on distortion sheet 12, and coil 14 is arranged on the side of magnetostrictive effect film 13, and coil 14 is connected with external power source.
First one-way ventilating film 15 is placed in the first space 501, and the first one-way ventilating film 15 has two kinds of location statuss, and when the first one-way ventilating film 15 is in primary importance state, the first space 501 is in communication with the outside by air admission hole 7; When the first one-way ventilating film 15 is in second place state, the first one-way ventilating film 15 closes air admission hole 7.
Second one-way ventilating film 16 is placed in the second container cavity 6, and the second one-way ventilating film 16 has two kinds of location statuss, and when the second one-way ventilating film 16 is in primary importance state, the first space 501 is communicated with the second container cavity 6 by the first through hole 9; When the second one-way ventilating film 16 is in second place state, the second one-way ventilating film 16 closes the first through hole 9.
3rd one-way ventilating film 17 is placed in second space 502, and the 3rd one-way ventilating film 17 has two kinds of location statuss, and when the 3rd one-way ventilating film 17 is in primary importance state, the second container cavity 6 is communicated with second space 502 by the second through hole 10; When the 3rd one-way ventilating film 17 is in second place state, the 3rd one-way ventilating film 17 closes the second through hole 10.
4th one-way ventilating film 18 is placed in the first vent passages 4, and the 4th one-way ventilating film 18 has two kinds of location statuss, and when the 4th one-way ventilating film 18 is in primary importance state, second space 502 is communicated with the first vent passages 4 by third through-hole 11; When the 4th one-way ventilating film 18 is in second place state, the 4th one-way ventilating film 18 closes third through-hole 11.
5th one-way ventilating film 21 is placed in the second vent passages 19, and the 5th one-way ventilating film 21 has two kinds of location statuss, and when the 5th one-way ventilating film 21 is in primary importance state, second space 502 is communicated with the second vent passages 19 by fourth hole 20; When the 5th one-way ventilating film 21 is in second place state, the 5th one-way ventilating film 21 closes fourth hole 20.
In coil 14, pass into electric current, allow coil 14 produce magnetic field, drive magnetostrictive effect film 13 to move by magnetic field force, and then band dynamic deformation sheet 12 being out of shape, by constantly changing sense of current in coil 14, driving distortion sheet 12 repeated deformation; When being out of shape sheet 12 and compressing second space 502, outside air is pushed the first one-way ventilating film 15 open and is entered the first space 501, Compressed Gas in second space 502 pushes the 4th one-way ventilating film 18 open, the 5th one-way ventilating film 21 enters in the first vent passages 4, second vent passages 19, then discharges from steam vent 8; When being out of shape sheet 12 and compressing the first space 501, Compressed Gas in first space 501 is pushed the second one-way ventilating film 16 open and is entered the second container cavity 6, push the 3rd one-way ventilating film 17 when gas pressure in second container cavity 6 is excessive open and enter second space 502, iterative cycles like this, backlight 2 is lowered the temperature, dispelled the heat, ensure whole LCDs result of use, improve useful life; The design of total, structure is simple, uses convenient.
Further, the second vent passages 19 one-tenth S type is arranged, and the first vent passages 4 one-tenth S type is arranged; Increase the first vent passages 4, second vent passages 19 and the contact area of backlight 2, increase the effect of cooling, cooling.
Further, also comprise dust cover 22, dust cover 22 to be arranged on housing 3 and to cover air admission hole 7; Dust is avoided to enter.
Further, also comprise temperature sensor, controller, frequency converter, controller is connected with temperature sensor, frequency converter, and above-mentioned coil 14 is connected with external power source by frequency converter; Temperature sensor is for obtaining the temperature information value of environment residing for backlight 2, and controller is used for the said temperature value of information and preset temperature value to compare, and controls the operating state of frequency converter according to comparative result.
When temperature information value is greater than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for increasing electric current in coil 14; When temperature information value is less than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for reducing electric current in coil 14.
The sense of current changes, and the magnetic field force direction that coil 14 produces changes, and distortion sheet 12 deformation direction changes, by above-mentioned design, according to the actual temperature situation of backlight 2, the frequency changed by adjustment electric current decides the deformation frequencies being out of shape sheet 12, better effects if, uses convenient.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. there is a LCDs for dust-proof radiating function, comprise display screen body, backlight and housing, it is characterized in that, between housing and backlight, form the first vent passages; Be provided with the first container cavity, the second container cavity in housing, housing is provided with air admission hole, steam vent, the first through hole, the second through hole, third through-hole;
Also comprise distortion sheet, magnetostrictive effect film, coil, the first one-way ventilating film, the second one-way ventilating film, the 3rd one-way ventilating film, the 4th one-way ventilating film be made up of elastomeric material;
Distortion sheet to be placed in the first container cavity and to be tightly connected with the sidewall of housing, and the first container cavity is divided into the first space and second space by distortion sheet;
Magnetostrictive effect film is arranged on distortion sheet, and coil is arranged on the side of magnetostrictive effect film, and coil is connected with external power source;
First one-way ventilating film is placed in the first space, and the first one-way ventilating film has two kinds of location statuss, and when the first one-way ventilating film is in primary importance state, the first space is in communication with the outside by air admission hole; When the first one-way ventilating film is in second place state, the first one-way ventilating membrane closure air admission hole;
Second one-way ventilating film is placed in the second container cavity, and the second one-way ventilating film has two kinds of location statuss, and when the second one-way ventilating film is in primary importance state, the first space is communicated with the second container cavity by the first through hole; When the second one-way ventilating film is in second place state, the second one-way ventilating membrane closure first through hole;
3rd one-way ventilating film is placed in second space, and the 3rd one-way ventilating film has two kinds of location statuss, and when the 3rd one-way ventilating film is in primary importance state, the second container cavity is communicated with second space by the second through hole; When the 3rd one-way ventilating film is in second place state, the 3rd one-way ventilating membrane closure second through hole;
4th one-way ventilating film is placed in the first vent passages, and the 4th one-way ventilating film has two kinds of location statuss, and when the 4th one-way ventilating film is in primary importance state, second space is communicated with the first vent passages by third through-hole; When the 4th one-way ventilating film is in second place state, the 4th one-way ventilating membrane closure third through-hole;
First vent passages is communicated with steam vent.
2. the LCDs with dust-proof radiating function according to claim 1, is characterized in that, forms the second vent passages between display screen body and backlight, and the second vent passages is communicated with steam vent;
Housing is also provided with fourth hole;
Also comprise the 5th one-way ventilating film, 5th one-way ventilating film is placed in the second vent passages, 5th one-way ventilating film has two kinds of location statuss, and when the 5th one-way ventilating film is in primary importance state, second space is communicated with the second vent passages by fourth hole; When the 5th one-way ventilating film is in second place state, the 5th one-way ventilating membrane closure fourth hole.
3. the LCDs with dust-proof radiating function according to claim 2, is characterized in that, the second vent passages becomes S type to arrange.
4. the LCDs with dust-proof radiating function according to claim 1, is characterized in that, the first vent passages becomes S type to arrange.
5. the LCDs with dust-proof radiating function according to claim 1, is characterized in that, also comprise dust cover, and dust cover to be arranged on housing and to cover air admission hole.
6. the LCDs with dust-proof radiating function according to claim 1, is characterized in that, also comprises temperature sensor, controller, frequency converter, and controller is connected with temperature sensor, frequency converter, and above-mentioned coil is connected with external power source by frequency converter; Temperature sensor is for obtaining the temperature information value of environment residing for backlight, and controller is used for the said temperature value of information and preset temperature value to compare, and controls the operating state of frequency converter according to comparative result.
7. the LCDs with dust-proof radiating function according to claim 6, is characterized in that, when temperature information value is greater than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for increasing electric current in coil; When temperature information value is less than preset temperature value, controller sends signal to frequency converter and changes nyctitropic frequency for reducing electric current in coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783954.9A CN105407689B (en) | 2015-11-14 | 2015-11-14 | It is a kind of that there is the liquid crystal display of dust-proof radiating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783954.9A CN105407689B (en) | 2015-11-14 | 2015-11-14 | It is a kind of that there is the liquid crystal display of dust-proof radiating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105407689A true CN105407689A (en) | 2016-03-16 |
| CN105407689B CN105407689B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783954.9A Active CN105407689B (en) | 2015-11-14 | 2015-11-14 | It is a kind of that there is the liquid crystal display of dust-proof radiating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704987A (en) * | 2016-03-28 | 2016-06-22 | 联想(北京)有限公司 | Electronic equipment and radiating method therefor |
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| CN201435902Y (en) * | 2009-04-07 | 2010-03-31 | 深圳市博康多媒体显示技术有限公司 | Automatic radiation device of liquid crystal equipment |
| EP2482123A2 (en) * | 2011-02-01 | 2012-08-01 | Samsung Electronics Co., Ltd | Outdoor display apparatus |
| CN102737558A (en) * | 2011-04-08 | 2012-10-17 | 三星电子株式会社 | Outdoor display apparatus |
| CN103105966A (en) * | 2011-11-15 | 2013-05-15 | 三星电子株式会社 | Display assembly of electronic device and electronic device including the same |
| CN104200758A (en) * | 2014-08-12 | 2014-12-10 | 苏州佳世达电通有限公司 | Display device |
| CN204029311U (en) * | 2014-06-13 | 2014-12-17 | 卓钢 | A kind of outdoor LCD screen cooling system |
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2015
- 2015-11-14 CN CN201510783954.9A patent/CN105407689B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201435902Y (en) * | 2009-04-07 | 2010-03-31 | 深圳市博康多媒体显示技术有限公司 | Automatic radiation device of liquid crystal equipment |
| EP2482123A2 (en) * | 2011-02-01 | 2012-08-01 | Samsung Electronics Co., Ltd | Outdoor display apparatus |
| CN102737558A (en) * | 2011-04-08 | 2012-10-17 | 三星电子株式会社 | Outdoor display apparatus |
| CN103105966A (en) * | 2011-11-15 | 2013-05-15 | 三星电子株式会社 | Display assembly of electronic device and electronic device including the same |
| CN204029311U (en) * | 2014-06-13 | 2014-12-17 | 卓钢 | A kind of outdoor LCD screen cooling system |
| CN104200758A (en) * | 2014-08-12 | 2014-12-10 | 苏州佳世达电通有限公司 | Display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704987A (en) * | 2016-03-28 | 2016-06-22 | 联想(北京)有限公司 | Electronic equipment and radiating method therefor |
| CN105704987B (en) * | 2016-03-28 | 2018-06-29 | 联想(北京)有限公司 | A kind of electronic equipment and its heat dissipating method |
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| Publication number | Publication date |
|---|---|
| CN105407689B (en) | 2018-04-17 |
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Effective date of registration: 20191204 Address after: Taihu County, Anhui city of Anqing Province Jin Xi Zhen 246400 Patentee after: Taihu County functional membrane Testing Research Institute Address before: 230000 Anhui city of Hefei Province Economic and Technological Development Zone gold furnace road and road intersection to the northwest side of an Raycom city a 9 Room 401 Patentee before: HEFEI HAICHONG INFORMATION TECHNOLOGY CO., LTD. |
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Address after: Taihu County, Anhui city of Anqing Province Jin Xi Zhen 246400 Patentee after: Taihu County market supervision and Inspection Institute (Taihu County functional membrane Testing Institute) Address before: Taihu County, Anhui city of Anqing Province Jin Xi Zhen 246400 Patentee before: Taihu County functional membrane Testing Research Institute |