CN102135677A - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN102135677A CN102135677A CN2011100741486A CN201110074148A CN102135677A CN 102135677 A CN102135677 A CN 102135677A CN 2011100741486 A CN2011100741486 A CN 2011100741486A CN 201110074148 A CN201110074148 A CN 201110074148A CN 102135677 A CN102135677 A CN 102135677A
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- crystal display
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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 control penetrability technology to realize the display of color.Compare with CRT monitor, the advantage of LCD is clearly, know-why by liquid crystal control penetrability makes base plate integral body luminous, so it has accomplished real complete plane, along with the increase of LCD product yield, the decline of cost, LCD obtains popularizing in a large number, as display, televisor and the LCD ad playing machine etc. of computing machine.This class display device mainly comprises display panel, circuit board, front casing and rear casing.Display panel is used for display image, is generally similar products such as liquid crystal panel, plasma panel.The front casing of equipment is used for the support fixation display panel, and forms display device complete, that can work independently with rear casing.According to the requirement of different display device working environments, shell also can be realized 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 demands of applications is more and more, and the viewing area of display panel is required maximization as far as possible, to the environmental requirement of its work also from the indoor open air of developing into.The flat panel display equipment of selling on market has at present had two big drawbacks limit its use out of doors: the first since the characteristic of liquid crystal material determine.Display panels is that the flat box of being made by two sheet glass is that main body constitutes, gap thickness in the middle of the 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 LCD can only be indoors or the suitable work at night of outdoor environment temperature, but the ambient temperature range of its operate as normal be+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 than broad, has both influenced that it is attractive in appearance and volume is also big.
Traditional heat dissipating method is on the machine large power air-conditioned machine, fan and heating radiator to be installed out of doors at present, to take volume big because of it, dwindled the viewing area relatively, 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 sunlight direct projection, simultaneously, make the viewing area maximization of display panel, just make display panel preceding structure part frame very narrow, thus the new display environment and the requirement that are adapted to more.
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 place the interior display panel of described shell, described liquid crystal display also comprises front glass and the fan that is fixed on the described shell, described front glass is positioned at described display panel front portion, and be separated with a gap between between described front glass and the described display panel front, described liquid crystal display also comprises one with described gap with 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 the 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 the 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 is used for the generation of branch flow fan on the 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 constitutes fixed support with described reinforcement, described fixed support is fixed on the described frame, and described display panel support is fixed on the described fixed support.
Described support bracket fastened four angles are provided with corner bracket.
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-conditioning wind circulation port that communicates with described flow-guiding channel.
The present invention is provided with a front glass by the front portion at the display panel of liquid crystal display, and between front glass and display panel, form a gap, and, fan produces an air-flow by being set, and by flow-guiding channel air-flow is imported the gap and derive then, 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 an E-E place sectional view among Fig. 3;
Fig. 5 is a F-F place sectional view among 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 the diversion trench 111 of the depression that is used to import and derive air-flow, and diversion trench 111 comprises the derivation groove 1112 that is used to import the lead-in groove 1111 of air-flow and derives air-flow.Lead-in groove 1111 is arranged on the side of frame 11, derive groove 1112 be arranged on described lead-in groove opposed side edges on or on its excess-three limit.Frame 11 is made up 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 it is fixed on the inboard of frame all around, can be used for strengthening the intensity of liquid crystal display.For further strengthening intensity, can be provided with corner bracket 411 in described support bracket fastened four angles.Fixed support 4 can be fixed on the frame by screw etc.Display panel 3 is fixed on the fixed support 4 by the display panel support 32 on it, and both also can pass through screw retention.In order to realize waterproof and dustproof, also can around this fixed support 4, add the sealing member.
See also Fig. 4 and Fig. 5.During installation, at first earlier display panel 3 is packed into behind the frame 11, around frame 11, load onto fixed support 4 again, connect the display panel support 32 of display panel back on fixed support by screw afterwards, make display panel fix and the front glass of assurance and display panel front between gap 21, broken through traditional reinforcement be fixed on structural framing around and the frame mode installed prior to display panel, the shortcoming of having avoided traditional frame mode to make that display panel can't further reduce to the distance of procapsid, it is compacter to make that the complete machine of liquid crystal display can be done under equal radiating efficiency, and volume reduces 30%～40%.
The wind that fan 421 produces enters gap 21 between display panel 3 and the front glass 2 by tap hole shunting back along lead-in groove 1111, and then by deriving groove 1112 derivation.Lead-in groove 1111 and the flow-guiding channels 6 of deriving groove 1112 common formation heat radiations, flow-guiding channel 6 is with described gap and fan communicates and the air-flow of described fan generation can be imported and derive described gap, and wherein air flow direction is shown in the arrow among 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-conditioning wind circulation port, flow-guiding channel 6 communicates with described air-conditioning 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 the gap between display panel front and the glass, make it to form gas curtain, cover the whole front panel viewing area, lower the temperature or heat up, gas curtain flow through enter into behind the display panel can be thermoregulator in the circulation.Be subjected to the space constraint between display panel and the 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 the frame, the mode of taking directly to do tap hole on the four side frame of housing is finished the water conservancy diversion to gas, this method can increase the gas curtain area and the flow of the display panel of flowing through, and improves heat-sinking capability.Spacing size according to the thickness of the direction of air-flow, shell four side frame and display panel and panel frame, shell is adjusted the size and the position of tap hole, the gas curtain that flows through display panel can evenly be distributed and air quantity big as far as possible.
Can inject clean air or Duo gas in the enclosure, owing to adopt non-contacting heat-conducting medium, make its outside surface produce the uniform airflow layer at liquid crystal layer, on the glass of liquid crystal, produce one gas curtain by continual air current flow, this gas curtain does not contact liquid crystal drop, the heat of the gathering on the liquid crystal layer and the width of cloth can be penetrated heat and take away by convection current.Simultaneously, the front that can also when the positive surface temperature of cold day display panel is low, heat display panel, 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 under which kind of situation, can remain in the suitable temperature range, make the optically-active state of liquid crystal keep stable, do not produce phase change because of external environment.The temperature of gas curtain medium is automatically adjusted by air-conditioning and temperature sensor generally speaking.
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 strong solar radiation work down.Simultaneously, realized reducing the distance of the shell and the display panel of display device, promptly 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, compare under the rugged environment at high temperature, low temperature etc., even can round-the-clock operate as normal under strong solar radiation.Simultaneously, can realize that equipment self just possesses waterproof and dustproof, 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 the extreme weather conditions with lower cost manufacturing, product can be widely used in fields such as various outdoor media, advertisement, electronic digit signboard/billboard, sports buildings, public transport, factory, oil field.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. liquid crystal display, comprise shell and place 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 the described shell, described front glass is positioned at described display panel front portion, and be separated with a gap between between described front glass and the described display panel front, described liquid crystal display also comprises one with described gap with fan communicates and the air-flow that described fan can be produced imports and derive the flow-guiding channel in described gap.
2. liquid crystal display according to claim 1, it is characterized in that: described shell comprises the annular peripheral frame of a center hollow, described front glass, display panel and described fan all are fixed on the 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 the described scuncheon wall.
3. liquid crystal display according to claim 2, it is characterized in that: described liquid crystal display comprises that also one is fixed on the blower tray of described scuncheon, 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.
4. liquid crystal display according to claim 3 is characterized in that: also be provided with the air-flow that is used for the generation of branch flow fan on the described blower tray so that air-flow evenly imports the tap hole in described gap.
5. liquid crystal display according to claim 4, 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 constitutes fixed support with described reinforcement, described fixed support is fixed on the described frame, and described display panel support is fixed on the described fixed support.
6. liquid crystal display according to claim 5 is characterized in that: described support bracket fastened four angles are provided with corner bracket.
7. liquid crystal display according to claim 3 is characterized in that: described tap hole comprise the aperture 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.
8. liquid crystal display according to claim 1 is characterized in that: described liquid crystal display also comprises an air-conditioning 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 true CN102135677A (en) | 2011-07-27 |
| CN102135677B CN102135677B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110074148 Expired - Fee Related CN102135677B (en) | 2011-03-28 | 2011-03-28 | Liquid crystal display device |
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| CN (1) | CN102135677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785620A (en) * | 2015-01-09 | 2016-07-20 | 扬升照明股份有限公司 | Display device with fan |
Citations (4)
| 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 |
-
2011
- 2011-03-28 CN CN 201110074148 patent/CN102135677B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785620A (en) * | 2015-01-09 | 2016-07-20 | 扬升照明股份有限公司 | Display device with fan |
| TWI563908B (en) * | 2015-01-09 | 2016-12-21 | Young Lighting Technology Inc | Display having fan |
| US9655277B2 (en) | 2015-01-09 | 2017-05-16 | Young Lighting Technology Inc. | Display device having fan |
| CN105785620B (en) * | 2015-01-09 | 2019-04-30 | 中强光电股份有限公司 | Display device with fan |
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| Publication number | Publication date |
|---|---|
| CN102135677B (en) | 2013-11-06 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tan Tongsong Inventor before: Tan Tongsong Inventor before: Lei Weimin |
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Free format text: CORRECT: INVENTOR; FROM: TAN TONGSONG LEI WEIMIN TO: TAN TONGSONG |
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Granted publication date: 20131106 Termination date: 20190328 |