CN101794034A - Heat dissipation structure of liquid crystal display - Google Patents
Heat dissipation structure of liquid crystal display Download PDFInfo
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- CN101794034A CN101794034A CN200910000961A CN200910000961A CN101794034A CN 101794034 A CN101794034 A CN 101794034A CN 200910000961 A CN200910000961 A CN 200910000961A CN 200910000961 A CN200910000961 A CN 200910000961A CN 101794034 A CN101794034 A CN 101794034A
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Abstract
The invention discloses a heat dissipation structure of a liquid crystal display. The heat dissipation structure comprises an internal circulation channel, a circulating fan, a heat discharge channel and a heat discharge fan, wherein the internal circulation surrounds a backlight module; the heat discharge channel is positioned between a metal back plate and a circuit board carrying box; the circulating fan is used for forcibly circulating the air in the internal circulation passage; and the heat discharge fan is used for discharging the hot air in the heat discharge channel out of the liquid crystal display so as to prevent heat from being accumulated in the liquid crystal display and forming high heat, improve heat dissipation efficiency, and reduce temperature difference in the liquid crystal display.
Description
Technical field
The present invention relates to a kind of liquid crystal display device structure, especially the radiator structure of LCD.
Background technology
Fig. 1 is the radiator structure synoptic diagram of the LCD of prior art.With reference to figure 1, wherein conventional liquid crystal 1 comprises Liquid Crystal Module 10, backlight module 20, back side module 30 and housing 40.Liquid Crystal Module 10 comprises cover glass 11 and liquid crystal cells 12.Backlight module 20 comprises a plurality of fluorescent tubes 21, and back side module 30 comprises circuit board 31, casing 33, holes 35 and fan 37.In addition, this conventional liquid crystal 1 also comprises a metal backing 23, and this metal backing 23 is between back side module 30 and housing 40.
Because the heat that fluorescent tube 21 is produced in the backlight module 20 can be assembled toward metal backing 23, and the inner space of 30 of modules produces heat overleaf, for this heat is discharged outside the LCD 1, back side module 30 is provided with holes 35, and at holes 35 places installation fan 37, force the air of inner space to quicken to flow by fan 37, can allow heat discharge outside the LCD 1.
Yet, the heat dissipating method of the LCD of prior art, its shortcoming is with the backlight module inner sealing, causes the accumulation of heat inner space of module overleaf, can't effectively heat be discharged.In addition, the heat of module top, the back side can only lean on heat conducting mode to be sent to the liquid crystal cells in the place ahead or the system at rear, yet under the situation of high ambient temperature, when surpassing 30 ℃ as the open air, liquid crystal cells may liquefy, and the electronic power supply system in the module of the back side reduces in also can become instability or even life-span.
In addition, even if another shortcoming of prior art is for designing a holes and install fan additional in the module overleaf, in order to promoting the efficient of its heat extraction, yet this broken hole position may allow outside dust or aqueous vapor therefore enter problems such as causing the circuit board short circuit in the LCD.
Therefore, need a kind of device that can promote the LCD radiating efficiency,, and prolong the serviceable life of LCD with the electronic circuit system of stabilizing liquid crystal display interior.
Summary of the invention
Fundamental purpose of the present invention provides a kind of radiator structure of LCD, the a large amount of heats that can in time the display top be accumulated transmit (or by side direction opposite side transmission) toward the below, to avoid the heat that fluorescent tube was produced in the backlight module in LCD, to accumulate, reduce inner medial temperature and improve LCD temperature inside unevenness.
Another object of the present invention provides the radiator structure of another kind of LCD, two place's thermals source can be reached the both sides of a heat extraction path in heat conducting mode; Simultaneously, can add that also radiating fin or other can increase the both sides of the solution of area of dissipation to the heat extraction passage, last, utilize sending out the hot fan that the hot-air in the heat extraction passage is expelled to outside the LCD fast.
In order to achieve the above object, the invention provides a kind of radiator structure of LCD, in order to a LCD is dispelled the heat, this LCD comprises a Liquid Crystal Module, one backlight module, one back side module, a plurality of bracing or strutting arrangements, one inner loop channel, one housing and a metal backing, this backlight module comprises a plurality of fluorescent tubes, this metal backing is between this back side module and this housing, these a plurality of bracing or strutting arrangements are between this metal backing and this backlight module, this inner loop channel comprises one first channel, one second channel, one the 3rd channel and one the 4th channel, this first channel is between Liquid Crystal Module top and backlight module top, this second channel is between Liquid Crystal Module and backlight module, the 3rd channel is between Liquid Crystal Module bottom and backlight module bottom, and this four-way is between metal backing and backlight module, this four-way utilizes a plurality of bracing or strutting arrangements, metal backing and backlight module are separated, wherein this first channel links to each other with second channel, second channel links to each other with the 3rd channel, the 3rd channel links to each other with the 4th channel, and the 4th channel links to each other with first channel.
This circulation channel comprises one or more circulating fans.
This Liquid Crystal Module comprises one or more liquid crystal cells, a cover glass and a plurality of sept; wherein sept is discontinuous is configured between liquid crystal cells and the cover glass; form a gap and keep apart liquid crystal cells and cover glass, the inner loop channel in this gap and the backlight module communicates.
The present invention also provides a kind of radiator structure of LCD, in order to a LCD is dispelled the heat, this LCD comprises a Liquid Crystal Module, one backlight module, one back side module, one heat extraction channel, one housing and a metal backing, backlight module comprises a plurality of fluorescent tubes, back side module comprises a circuit board bearing box and a plurality of circuit board, this metal backing is between back side module and housing, this heat extraction channel is arranged between this circuit board bearing box and this metal backing, this metal backing comprises a first surface, the first surface of this metal backing is towards the heat extraction channel, this circuit board bearing box comprises a first surface, and the first surface of circuit board bearing box is towards the heat extraction passage.
This heat extraction passage has one or more heat extractions hole, and position, heat extraction hole is at top, bottom or the side of this heat extraction passage.
This heat extraction passage has one or more sending out the hot fan.
This Liquid Crystal Module comprises one or more liquid crystal cells, a cover glass and a plurality of sept, and wherein sept is discontinuous is configured between liquid crystal cells and the cover glass, forms a gap and keeps apart liquid crystal cells and cover glass.
This metal backing comprises a plurality of radiating fins, and the radiating fin position is on the first surface of metal backing.
This circuit board bearing box comprises a plurality of radiating fins, and the radiating fin position is on the first surface of circuit board bearing box.
The invention has the beneficial effects as follows: the present invention can effectively reduce the interior optical membrane plate position that temperature is high up of backlight module because of the probability that is subjected to Gao Re yellow or embrittlement, the possibility that the reduction liquid crystal is liquefied by Gao Re, and improves the heat conduction efficiency of display integral body.In addition; when display have cover glass, acrylic or or even when installing contact panel additional; intercept air layer owing to form one between clear glass or acrylic and liquid crystal cells; therefore many at least two-layer heat resistant layers and cause external radiating efficiency to descend concerning display, thereby may cause the serious problems of liquid crystal liquefaction.In order to increase the radiating efficiency of air layer between display and cover glass or acrylic; can be with aforementioned inner loop passage and air layer conducting at interval; make the air of this air layer add inner loop, can effectively avoid heat excessive accumulation herein and cause the problem of liquid crystal liquefaction.Therefore, the radiator structure of LCD of the present invention can make the equalizing temperature up and down in the LCD, and the enhancement radiating efficiency, minimizing external dust or aqueous vapor enter LCD inside and cause problems such as circuit system instability, to prolong the plurality of advantages such as serviceable life of LCD.
Description of drawings
Fig. 1 is the radiator structure synoptic diagram of the LCD of prior art.
Fig. 2 is the radiator structure synoptic diagram of LCD in the embodiment of the invention.
Embodiment
Below cooperation is graphic does more detailed description to embodiments of the present invention, and those of ordinary skill in the art can be implemented after studying this instructions carefully according to this.
With reference to figure 2, be the synoptic diagram of the radiator structure of LCD 2 of the present invention.This LCD 2 comprises Liquid Crystal Module 10, backlight module 50, back side module 60 and housing 40; wherein this Liquid Crystal Module 10 comprises cover glass 11 and one or more liquid crystal cells 12; this backlight module 50 comprises a plurality of fluorescent tubes 21, inner loop passage 51 and circulating fan 53; this back side module 60 comprises circuit board bearing box 61 and a plurality of circuit board 31, and wherein circuit board 31 is placed on the circuit board bearing box 61.In addition, this LCD 2 also comprises a metal backing 23, and this metal backing is between back side module 60 and housing 40.
Mainly contain two big thermals source in the LCD 2 of the present invention, the one, from backlight module 50, by the heat that a plurality of fluorescent tubes 21 are produced, another then is from back side module 60, reaches the heat that circuit board bearing box 61 is produced by circuit board 31.
As shown in Figure 2, with a plurality of bracing or strutting arrangements 55 backlight module 50 and metal backing 23 are separated formation one channel, and has a gap between Liquid Crystal Module 10 and the backlight module 50 and between housing 40 and the backlight module 50, and this passage and this gap form an inner loop passage 51, and this inner loop passage 51 surrounds backlight module 50 and isolates with outside air in addition.
In inner loop passage 51, have one or more circulating fans 53, this circulating fan 53 is placed in top, bottom or other position of inner loop passage 51, the quantity of circulating fan 53 is decided according to the size of LCD 2.The effect of circulating fan 53 is with the hot-air forced circulation in the inner loop passage 51, and its loop direction such as arrow 57 indications are with the temperature non between top, bottom or the left and right sides of improving LCD 2.
In addition, this LCD 2 also comprises a heat extraction passage 63 and a sending out the hot fan 65, wherein this heat extraction passage 63 is between metal backing 23 and circuit board bearing box 61, in addition, one or more heat extractions hole (not shown) is arranged at heat extraction passage 63 tops, make the hot-air of 63 li of heat extraction channels can lead directly to extraneous air, and because heat extraction passage 63 is between metal backing 23 and circuit board bearing box 61, dust or aqueous vapor also are unlikely to touch circuit board or liquid crystal panel causes short circuit via the heat extraction hole.In addition, also (not shown) such as other heat abstractor such as radiating fin can be set in the heat extraction passage 63, to increase the area of heat radiation.This routine heat extraction passage 63 direction up of serving as reasons down, on real the work, and the heat extraction passage also can be left and right directions.In this heat extraction passage 63, have one or more sending out the hot fan 65, this sending out the hot fan 65 is installed in top, bottom or two side positions (when the heat extraction channel is left and right directions) of heat extraction passage 63, decides on suction or sucking-off; The quantity of sending out the hot fan 65 is then decided on LCD 2 sizes.Because the circuit board 31 in the circuit board bearing box 61 can produce heat, through circuit board bearing box 61, this heat can be reached in the heat extraction passage 63; Simultaneously, the heat that fluorescent tube 21 is produced in the LCD 2 reaches heat in the heat extraction passage 63 through metal backing 23, so utilizing sending out the hot fan 65 extracts the heat in the heat extraction passage 63 out, drain into LCD 2 outsides, promoting its radiating efficiency, and stabilizing circuit plate 31 systems.
Back side module 60 is a seal cavity, and its radiator structure does not need to add the heat extraction hole, prevents that the dust of extraneous air or aqueous vapor from entering in the LCD, influences the internal circuit system.
In Liquid Crystal Module 10; the a plurality of septs 13 of discontinuous configuration between cover glass 11 and the liquid crystal cells 12; to separate cover glass 11 and liquid crystal cells 12 and to keep an interval air layer 14; and make inner loop passage 51 therewith at interval air layer 14 communicate; make the internal heat dissipating circulation can extend to this gap space; increase the radiating efficiency of this air layer, cause liquid crystal liquefaction every the air layer top during this time to avoid a large amount of accumulation of heat, and further improve the stability and the fiduciary level of display.
The above only is in order to explain preferred embodiment of the present invention; be not that attempt is done any pro forma restriction to the present invention according to this; therefore, all have in that identical invention spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.
Claims (9)
1. the radiator structure of a LCD, in order to a LCD is dispelled the heat, this LCD comprises a Liquid Crystal Module, a backlight module, a back side module, a plurality of bracing or strutting arrangement, an inner loop channel, a housing and a metal backing, it is characterized in that
This backlight module comprises a plurality of fluorescent tubes, this metal backing is between this back side module and this housing, these a plurality of bracing or strutting arrangements are between this metal backing and this backlight module, this inner loop channel comprises one first channel, one second channel, one the 3rd channel and one the 4th channel, this first channel is between Liquid Crystal Module top and backlight module top, this second channel is between Liquid Crystal Module and backlight module, the 3rd channel is between Liquid Crystal Module bottom and backlight module bottom, and this four-way is between metal backing and backlight module, this four-way utilizes a plurality of bracing or strutting arrangements, metal backing and backlight module are separated, wherein, this first channel links to each other with second channel, and second channel links to each other with the 3rd channel, the 3rd channel links to each other with the 4th channel, and the 4th channel links to each other with first channel.
2. the radiator structure of LCD as claimed in claim 1 is characterized in that, this circulation channel comprises one or more circulating fans.
3. the radiator structure of LCD as claimed in claim 1; it is characterized in that; this Liquid Crystal Module comprises one or more liquid crystal cells, a cover glass and a plurality of sept; wherein sept is discontinuous is configured between liquid crystal cells and the cover glass; form a gap and keep apart liquid crystal cells and cover glass, the inner loop channel in this gap and the backlight module communicates.
4. the radiator structure of a LCD, in order to LCD heat radiation, this LCD comprises a Liquid Crystal Module, a backlight module, a back side module, a heat extraction channel, a housing and a metal backing, it is characterized in that,
Backlight module comprises a plurality of fluorescent tubes, back side module comprises a circuit board bearing box and a plurality of circuit board, this metal backing is between back side module and housing, this heat extraction channel is arranged between this circuit board bearing box and this metal backing, this metal backing comprises a first surface, the first surface of this metal backing is towards the heat extraction channel, and this circuit board bearing box comprises a first surface, and the first surface of circuit board bearing box is towards the heat extraction passage.
5. the radiator structure of LCD as claimed in claim 4 is characterized in that, this heat extraction passage has one or more heat extractions hole, and position, heat extraction hole is at top, bottom or the side of this heat extraction passage.
6. the radiator structure of LCD as claimed in claim 4 is characterized in that, this heat extraction passage has one or more sending out the hot fan.
7. the radiator structure of LCD as claimed in claim 4; it is characterized in that; this Liquid Crystal Module comprises one or more liquid crystal cells, a cover glass and a plurality of sept; wherein sept is discontinuous is configured between liquid crystal cells and the cover glass, forms a gap and keeps apart liquid crystal cells and cover glass.
8. the radiator structure of LCD as claimed in claim 4 is characterized in that, this metal backing comprises a plurality of radiating fins, and the radiating fin position is on the first surface of metal backing.
9. the radiator structure of LCD as claimed in claim 4 is characterized in that, this circuit board bearing box comprises a plurality of radiating fins, and the radiating fin position is on the first surface of circuit board bearing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910000961A CN101794034A (en) | 2009-01-23 | 2009-01-23 | Heat dissipation structure of liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910000961A CN101794034A (en) | 2009-01-23 | 2009-01-23 | Heat dissipation structure of liquid crystal display |
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| CN101794034A true CN101794034A (en) | 2010-08-04 |
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| CN200910000961A Pending CN101794034A (en) | 2009-01-23 | 2009-01-23 | Heat dissipation structure of liquid crystal display |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429049A (en) * | 2012-05-07 | 2013-12-04 | Abb公司 | An electronics compartment |
| CN103582388A (en) * | 2012-08-10 | 2014-02-12 | 固纬电子实业股份有限公司 | Improved electronic device structure |
| CN105242762A (en) * | 2015-09-07 | 2016-01-13 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN106896560A (en) * | 2017-05-04 | 2017-06-27 | 中凯光电江苏有限公司 | Liquid crystal display radiating containment envelope |
| CN107065258A (en) * | 2017-03-13 | 2017-08-18 | 深圳市华星光电技术有限公司 | Heat radiation module and liquid crystal display |
| CN107664864A (en) * | 2017-09-08 | 2018-02-06 | 合肥惠科金扬科技有限公司 | A kind of more preferable AMOLED liquid crystal displays of back radiating effect |
| CN107664865A (en) * | 2017-09-14 | 2018-02-06 | 合肥惠科金扬科技有限公司 | One kind modernization cambered surface TFT LCD liquid crystal displays |
| CN108496215A (en) * | 2016-02-09 | 2018-09-04 | 索尼公司 | Display device |
| CN110418997A (en) * | 2017-03-13 | 2019-11-05 | Lg电子株式会社 | Display device |
| WO2021088154A1 (en) * | 2019-11-07 | 2021-05-14 | 深圳市华星光电半导体显示技术有限公司 | Display device |
| CN113253501A (en) * | 2020-02-13 | 2021-08-13 | 光远科技股份有限公司 | Electronic display assembly |
| CN114694527A (en) * | 2020-12-29 | 2022-07-01 | 光远科技股份有限公司 | Display device |
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| CN2687706Y (en) * | 2004-03-15 | 2005-03-23 | 上海神开科技工程有限公司 | Radiating structure for limited respiration type explosive-proof liquid crystal display device |
| WO2007039958A1 (en) * | 2005-09-30 | 2007-04-12 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
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Patent Citations (2)
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| CN2687706Y (en) * | 2004-03-15 | 2005-03-23 | 上海神开科技工程有限公司 | Radiating structure for limited respiration type explosive-proof liquid crystal display device |
| WO2007039958A1 (en) * | 2005-09-30 | 2007-04-12 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429049A (en) * | 2012-05-07 | 2013-12-04 | Abb公司 | An electronics compartment |
| US9167730B2 (en) | 2012-05-07 | 2015-10-20 | Abb Technology Oy | Electronics compartment |
| EP2663173A3 (en) * | 2012-05-07 | 2017-03-08 | ABB Oy | An electronics compartment |
| CN103582388A (en) * | 2012-08-10 | 2014-02-12 | 固纬电子实业股份有限公司 | Improved electronic device structure |
| CN103582388B (en) * | 2012-08-10 | 2016-01-20 | 固纬电子实业股份有限公司 | The electronic device construction of improvement |
| CN105242762A (en) * | 2015-09-07 | 2016-01-13 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN105242762B (en) * | 2015-09-07 | 2019-06-25 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN108496215A (en) * | 2016-02-09 | 2018-09-04 | 索尼公司 | Display device |
| CN108496215B (en) * | 2016-02-09 | 2021-04-09 | 索尼公司 | Display device |
| CN107065258A (en) * | 2017-03-13 | 2017-08-18 | 深圳市华星光电技术有限公司 | Heat radiation module and liquid crystal display |
| CN110418997A (en) * | 2017-03-13 | 2019-11-05 | Lg电子株式会社 | Display device |
| CN110418997B (en) * | 2017-03-13 | 2022-08-09 | Lg电子株式会社 | Display device |
| CN106896560A (en) * | 2017-05-04 | 2017-06-27 | 中凯光电江苏有限公司 | Liquid crystal display radiating containment envelope |
| CN107664864A (en) * | 2017-09-08 | 2018-02-06 | 合肥惠科金扬科技有限公司 | A kind of more preferable AMOLED liquid crystal displays of back radiating effect |
| CN107664865A (en) * | 2017-09-14 | 2018-02-06 | 合肥惠科金扬科技有限公司 | One kind modernization cambered surface TFT LCD liquid crystal displays |
| WO2021088154A1 (en) * | 2019-11-07 | 2021-05-14 | 深圳市华星光电半导体显示技术有限公司 | Display device |
| US11428975B2 (en) | 2019-11-07 | 2022-08-30 | Shenzhen China Star Optoelectronics Semicorsductor Display Technology Co., Ltd. | Display device |
| CN113253501A (en) * | 2020-02-13 | 2021-08-13 | 光远科技股份有限公司 | Electronic display assembly |
| CN114694527A (en) * | 2020-12-29 | 2022-07-01 | 光远科技股份有限公司 | Display device |
| CN114694527B (en) * | 2020-12-29 | 2023-08-08 | 光远科技股份有限公司 | Display apparatus |
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Application publication date: 20100804 |