CN102135677B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN102135677B CN102135677B CN 201110074148 CN201110074148A CN102135677B CN 102135677 B CN102135677 B CN 102135677B CN 201110074148 CN201110074148 CN 201110074148 CN 201110074148 A CN201110074148 A CN 201110074148A CN 102135677 B CN102135677 B CN 102135677B
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- liquid crystal
- crystal display
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- display panel
- flow
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Abstract
The invention discloses a liquid crystal display device and aims at providing the liquid crystal display device which can perform heat radiation on the front surface of a display panel of the liquid crystal display device. The liquid crystal display device comprises a housing and the display panel arranged in the housing, as well as front glass and a fan fixed on the housing, wherein the front glass is positioned at the front part of the display panel, a gap is arranged between the front glass and the front surface of the display panel, and the liquid crystal display device further comprises a diversion channel which is communicated with the gap and the fan and can import and export gas flow generated by the fan into and from the gap. The liquid crystal display device can be used for various display devices, in particular to outdoor liquid crystal display devices.
Description
Technical field
The present invention relates to liquid crystal display, especially relate to a kind of liquid crystal display of perfect heat-dissipating.
Background technology
LCD(Liquid Crystal Display) liquid crystal display, as its name suggests, it is to have adopted liquid crystal to control the display that the penetrability technology realizes color.Compare with CRT monitor, the advantage of LCD is clearly, the know-why of controlling penetrability by liquid crystal allows the base plate Integral luminous, so it has accomplished real complete plane, along with the increase of LCD product yield, the decline of cost, liquid crystal display is popularized in a large number, as display, televisor and the LCD advertisement player etc. of computing machine.This class display device mainly comprises display panel, circuit board, front casing and rear casing.Display panel is used for showing image, is generally the similar products such as liquid crystal panel, plasma panel.The front casing of equipment is used for supporting fixed display panel, and forms display device complete, that can work independently together with rear casing.According to the requirement of different display device working environments, shell also can be realized the functions such as water-proof anti-theft is anti-riot.
The development trend of liquid crystal display is that size is increasing, and power is more and more higher, and the demand of application is more and more, the viewing area of display panel is required to maximize as far as possible, to the environmental requirement of its work also from the indoor open air of developing into.Its use out of doors that the flat panel display equipment of selling on market has at present had two large drawbacks limit: the first is due to the characteristic decision of liquid crystal material.display panels is that the flat box of being made by two sheet glass is that main body consists of, gap thickness in the middle of box is 5-8 μ m only, and inside surface is covered with very fine, the oriented layer that liquid crystal molecule is orientated by certain orientation, surpassing the certain temperature range liquid crystal state can disappear, liquefy, display surface is black (negativity is white in color when showing), no longer can show, therefore, can't continuous firing under hot environment and when bearing strong solar radiation, make working environment very restricted, cause the liquid crystal display can only be indoors or the suitable work at night of outdoor environment temperature, its ambient temperature range that can work is+5 ℃-+35 ℃, another shortcoming is relatively large to the distance of display device outer rim by the viewing area of display panel, is reflected on the structural member frame widelyr, has both affected that it is attractive in appearance and volume is also large.
Traditional heat dissipating method is on machine, large power air-conditioned machine, fan and heating radiator to be installed out of doors at present, to take volume large because of it, relative decrease the viewing area, and air conditioner and heating radiator can only rearmountedly be installed, can't be directly the heat on the liquid crystal layer surface in display panel front be shed, radiating effect is relatively poor.
Therefore, need a kind of new technology to solve the deficiency that existing display device exists, make liquid crystal display can adapt to various working environments, long-term stable operation under various high temperature and direct sunlight, simultaneously, the viewing area of display panel is maximized, namely make the structural member frame of display panel front very narrow, thus the new display environment and the requirement that more are adapted to.
Summary of the invention
The present invention can't be directly sheds the heat on the liquid crystal layer surface in display panel front in order to solve the prior art liquid crystal display, and the technical matters that radiating effect is relatively poor provides a kind of liquid crystal display.
For solving the problems of the technologies described above, the technical solution used in the present invention is a kind of liquid crystal display of design, comprise shell and be placed in the interior display panel of described shell, described liquid crystal display also comprises front glass and the fan that is fixed on described shell, it is anterior that described front glass is positioned at described display panel, and be separated with a gap between between described front glass and described display panel front, described liquid crystal display also comprises one with described gap and fan communicates and the air-flow that described fan can be produced imports and derive the flow-guiding channel in described gap.
Described shell comprises the annular peripheral frame of a center hollow, described front glass, display panel and described fan all are fixed on described frame, described fan is arranged at the rear portion of described display panels, and described flow-guiding channel comprises the diversion trench that is arranged on the depression on described scuncheon wall.
Described liquid crystal display comprises that also one is fixed on the blower tray of described scuncheon, and it is inboard and over against described frame setting that described fan is fixed on described blower tray, described diversion trench comprise with described fan over against lead-in groove.
Also be provided with the air-flow that produces for minute flow fan on described blower tray so that air-flow evenly imports the tap hole in described gap.
Described display panel comprises a display panel support, described liquid crystal display also comprises the square reinforcement of end opening one by one, described blower tray is fixedly connected on the openend of described reinforcement and consists of fixed support together with described reinforcement, described fixed support is fixed on described frame, and described display panel support is fixed on described fixed support.
Be provided with corner bracket on described support bracket fastened four angles.
Described tap hole comprise the microwell array that is arranged on the fan dead ahead and be arranged on fan and fan between and the grid of the length gradual change in the fan outside.
Described liquid crystal display also comprises an air-conditioner wind circulation port that communicates with described flow-guiding channel.
The present invention arranges a front glass by the front portion at the display panel of liquid crystal display, and form a gap between front glass and display panel, and by being set, fan produces an air-flow, and by flow-guiding channel, air-flow is imported the gap and then derive, thereby can be when needs dispel the heat, the heat in display panel front is shed rapidly, compare the prior art that can't dispel the heat to the display panel front, radiating effect is better.
Description of drawings
The present invention is described in detail below in conjunction with embodiment and accompanying drawing, wherein:
Fig. 1 is the three-dimensional exploded view of liquid crystal display of the present invention;
Fig. 2 is the fixing rack structure figure of liquid crystal display of the present invention;
Fig. 3 is the three-dimensional combination figure of liquid crystal display of the present invention;
Fig. 4 is E-E place sectional view in Fig. 3;
Fig. 5 is F-F place sectional view in Fig. 3.
Embodiment
Please in the lump referring to Fig. 1 to Fig. 5.Liquid crystal display of the present invention comprises shell 1, front glass 2, display panel 3 and fixed support 4.Wherein, shell 1 mainly comprises the annular peripheral frame 11 of a center hollow, and in this specific embodiment, frame 11 is square.The medial surface of frame 11 is provided with for the diversion trench 111 that imports and derive the depression of air-flow, and diversion trench 111 comprises the derivation groove 1112 for the lead-in groove 1111 that imports air-flow and derivation air-flow.Lead-in groove 1111 is arranged on a side of frame 11, derive that groove 1112 is arranged on the side relative with described lead-in groove or its excess-three limit on.Frame 11 is comprised of 4 Welding of Aluminium Alloy Sheet Structure together.
Fixed support 4 is arranged on the rear portion of display panel 3, and it comprises by the square reinforcement 41 of end opening one by one and is fixedly connected on the blower tray 42 of the openend of described reinforcement.Fixed support can be supported by metal material, and its surrounding that is fixed on frame is inboard, can be used for strengthening the intensity of liquid crystal display.For further strengthening intensity, can be provided with corner bracket 411 on described support bracket fastened four angles.Fixed support 4 can be fixed on frame by screw etc.Display panel 3 is fixed on fixed support 4 by the display panel support 32 on it, and both also can fix by screw.In order to realize waterproof and dustproof, also can add in the surrounding of this fixed support 4 the sealing member.
See also Fig. 4 and Fig. 5.during installation, at first first display panel 3 is packed into after frame 11, load onto fixed support 4 in the surrounding of frame 11 again, be connected by screw afterwards the display panel support 32 of display panel back on fixed support, make display panel fix and the front glass of assurance and display panel front between gap 21, broken through that traditional reinforcement is fixed on the surrounding of structural framing and the frame mode installed prior to display panel, the shortcoming of having avoided traditional frame mode to make display panel can't further reduce to the distance of procapsid, it is compacter that the complete machine that makes liquid crystal display can be done under equal radiating efficiency, volume reduces 30%～40%.
After shunt by tap hole, the wind that fan 421 produces enters gap 21 between display panel 3 and front glass 2 along lead-in groove 1111, and then by 1112 derivation of derivation groove.Lead-in groove 1111 and derive the common flow-guiding channel 6 that consists of heat radiation of groove 1112, flow-guiding channel 6 and described gap and fan communicates and the air-flow importing that described fan can be produced and derive described gap, wherein air flow direction is as shown in the arrow in Fig. 4 and Fig. 5.In this specific embodiment, an air-conditioning can be set produce the cold wind heat radiation, described air-conditioning comprises an air-conditioner wind circulation port, flow-guiding channel 6 communicates with described air-conditioner wind circulation port, is blown into the gap with the cold wind that air-conditioning is produced, and hot blast is imported in the wind circulation of air-conditioning.
In this specific embodiment, the power consumption of liquid crystal display is 1500W, and display panel is of a size of 46 ＂, and the viewing area can be too narrow to 19mm to the distance of display device outer rim.
Liquid crystal display of the present invention can be done Seal Design with shell, the cold wind that utilizes air-conditioning to produce dispels the heat, air-flow after the adjusting temperature that fan provides air-conditioner air outlet imports in gap between display panel front and glass, make it to form gas curtain, cover whole Display panel regional, lower the temperature or heat up, gas curtain flow through enter into after display panel can thermoregulator interior circulation in.Be subjected to the space constraint between display panel and procapsid, the generating gas curtain in the positive design of display panels and control mesomorphic temperature of the invention, directly be made in the air channel on frame, the mode of taking directly to do tap hole on the four side frame of housing is completed the water conservancy diversion to gas, the method can increase gas curtain area and the flow of the display panel of flowing through, and improves heat-sinking capability.Adjust size and the position of tap hole according to the spacing size of the thickness of the direction of air-flow, shell four side frame and display panel and panel frame, shell, the gas curtain that flows through display panel can evenly be distributed and air quantity large as far as possible.
Can inject in the enclosure clean air or Duo gas, owing to adopting non-contacting heat-conducting medium, make its outside surface at liquid crystal layer produce uniform airflow layer, produce one gas curtain on the glass surface of liquid crystal by continual air current flow, this gas curtain does not contact liquid crystal drop, the heat of the gathering on liquid crystal layer and width can be penetrated heat and take away by convection current.Simultaneously, the front that can also heat display panel when the positive surface temperature of cold day display panel is low, both can solve display device heat dissipation problem at high temperature, heating problems in the time of also can solving low temperature, finally make the liquid crystal state of display panel no matter can remain in suitable temperature range in which kind of situation, make the optically-active state of liquid crystal keep stable, do not change because external environment produces phase place.Generally the temperature of gas curtain medium is automatically adjusted by air-conditioning and temperature sensor.
Liquid crystal display of the present invention is by adopting noncontact heat conduction gas curtain cooling technology and structure thereof, solved the heat dissipation problem of high power display panel, but make the ambient temperature range expansion of display panel long-term work reach-40 ℃-+70 ℃, make it to adapt to various working environments and comprise high temperature and work under solar radiation by force.Simultaneously, realized reducing the distance of shell and the display panel of display device, namely the structural member frame of display panel front end is very narrow, reaches the maximized purpose in viewing area of display panel.
Liquid crystal display of the present invention can satisfy the radiating requirements of high-power liquid crystal display, and working environment is unrestricted, compares under rugged environment at high temperature, low temperature etc., even can round-the-clockly work under strong solar radiation.Simultaneously, can realize that equipment self just possesses waterproof and dustproof, the function such as antitheft, and the structural member frame of display panel front end is very narrow, makes display device more attractive in appearance in use, the visual field is broad, and the viewing area reaches maximization.Thereby, the liquid crystal display terminal that can be used for playing under extreme weather conditions with lower cost manufacturing, product can be widely used in the fields such as various outdoor media, advertisement, electronic digit signboard/billboard, sports buildings, public transport, factory, oil field.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. liquid crystal display, comprise shell and be placed in the interior display panel of described shell, it is characterized in that: described liquid crystal display also comprises front glass and the fan that is fixed on described shell, it is anterior that described front glass is positioned at described display panel, and be separated with a gap between between described front glass and described display panel front, described liquid crystal display also comprises one with described gap and fan communicates and the air-flow that described fan can be produced imports and derive the flow-guiding channel in described gap;
Described shell comprises the annular peripheral frame of a center hollow, described front glass, display panel and described fan all are fixed on described frame, described fan is arranged at the rear portion of described display panels, and described flow-guiding channel comprises the diversion trench that is arranged on the depression on described scuncheon wall;
Described liquid crystal display comprises that also one is fixed on the blower tray of described scuncheon, and it is inboard and over against described frame setting that described fan is fixed on described blower tray, described diversion trench comprise with described fan over against lead-in groove.
2. liquid crystal display according to claim 1, is characterized in that: also be provided with the air-flow that produces for minute flow fan on described blower tray so that air-flow evenly imports described gap
Tap hole
3. liquid crystal display according to claim 2, it is characterized in that: described display panel comprises a display panel support, described liquid crystal display also comprises the square reinforcement of end opening one by one, described blower tray is fixedly connected on the openend of described reinforcement and consists of fixed support together with described reinforcement, described fixed support is fixed on described frame, and described display panel support is fixed on described fixed support.
4. liquid crystal display according to claim 3, is characterized in that: be provided with corner bracket on described support bracket fastened four angles.
5. liquid crystal display according to claim 2, is characterized in that: described
Tap hole comprisesBe arranged on the aperture microwell array in fan dead ahead and be arranged on fan and fan between and the grid of the length gradual change in the fan outside.
6. liquid crystal display according to claim 1, it is characterized in that: described liquid crystal display also comprises an air-conditioner wind circulation port that communicates with described flow-guiding channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074148 CN102135677B (en) | 2011-03-28 | 2011-03-28 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074148 CN102135677B (en) | 2011-03-28 | 2011-03-28 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102135677A CN102135677A (en) | 2011-07-27 |
| CN102135677B true CN102135677B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110074148 Expired - Fee Related CN102135677B (en) | 2011-03-28 | 2011-03-28 | Liquid crystal display device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI563908B (en) * | 2015-01-09 | 2016-12-21 | Young Lighting Technology Inc | Display having fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006163217A (en) * | 2004-12-10 | 2006-06-22 | Mitsubishi Electric Corp | Outdoor display device |
| CN101592807A (en) * | 2008-05-27 | 2009-12-02 | 深圳市新超亮特种显示设备有限公司 | A kind of LCDs with heat abstractor |
| CN201373956Y (en) * | 2009-01-22 | 2009-12-30 | 梅斯·马塞尔·彼得·杰拉德 | Integrated display structure |
| CN202025163U (en) * | 2011-03-28 | 2011-11-02 | 深圳市友炬互动科技有限公司 | Liquid crystal display device |
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Inventor after: Tan Tongsong Inventor before: Tan Tongsong Inventor before: Lei Weimin |
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