CN106647022A - Heat dissipation structure of backlight module, backlight module, liquid crystal display module and television set - Google Patents
Heat dissipation structure of backlight module, backlight module, liquid crystal display module and television set Download PDFInfo
- Publication number
- CN106647022A CN106647022A CN201611090635.0A CN201611090635A CN106647022A CN 106647022 A CN106647022 A CN 106647022A CN 201611090635 A CN201611090635 A CN 201611090635A CN 106647022 A CN106647022 A CN 106647022A
- Authority
- CN
- China
- Prior art keywords
- radiator
- backlight
- backlight module
- shaped
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
Abstract
The invention provides a heat dissipation structure of a backlight module. The heat dissipation structure comprises a heat dissipation device, a vacuum inner cavity is formed in the heat dissipation device, and a refrigerant is injected in the vacuum inner cavity. The invention further provides the backlight module, a liquid crystal display module and a television set. The backlight module, the liquid crystal display module and the television set each comprise the heat dissipation structure of the backlight module. Compared with the prior art, by forming the vacuum inner cavity in the heat dissipation device and injecting the refrigerant, the boiling point of the refrigerant is lowered through the vacuum environment, then heat can be rapidly released, and thus the heat dissipation effect is improved.
Description
Technical field
The present invention relates to a kind of liquid panel technique, particularly for super-high-power LED backlight module radiator structure
And backlight module, liquid crystal display module, television set.
Background technology
Generally, the backlight radiating of liquid crystal display module is using conventional aluminium or copper radiator free convection, nothing
Other active forced convertions or phase-change heat radiating device need to be increased.But as liquid crystal panel resolution ratio is constantly raised, penetrance also with
Reduction.The penetrance of leading 8K (7680 × 4320 pixel resolution) panel is than 4K (3840 × 2160 pixels point
Resolution) it is greatly reduced again, so need the backlight of more high brightness.Meanwhile, HDR (high dynamic range images (High-Dynamic
)) etc. Range technology also causes partial picture region to need to reach the brightness (1000int or so) of superelevation.In such background
Under, the power of LED steeply rises, and common backlight radiating module cannot meet demand.
This kind of powerful liquid crystal panel needs simultaneously：1st, LED temperature is controlled in reasonable interval；2nd, whole machine thickness is not
Can be too big.Under conditions of fan and water pump is not increased, existing conventional means are the grooves that a lot of is milled out on aluminium extruded, and with
On aluminium extruded, the heat at LED ends quickly can be quickly dispersed into radiating to the gluing heat pipe of heat conduction by this method by heat pipe
Device distal end is gone.But heat pipe needs to bond to radiator by heat-conducting glue, and the thermal conductivity factor of heat-conducting glue is extremely low, becomes heat-transfer path
On very big thermal resistance, greatly reduce radiating effect.
The content of the invention
To overcome the deficiencies in the prior art, the present invention to provide a kind of radiator structure and backlight module, liquid crystal of backlight module
Display module, television set, so as to improve radiating effect.
The invention provides a kind of radiator structure of backlight module, including radiator, have in vacuum in the radiator
Chamber, in the vacuum lumen cold-producing medium is injected with.
Further, the cavity wall of the vacuum lumen is provided with the microporous layers that at least one of which has micropore.
Further, the radiator be provided with connect with vacuum lumen for the hole that vacuumizes that vacuumizes, it is described to take out
Vacuum hole is provided with closure.
Further, the microporous layers are sintered by copper powder and are made.
Further, the cross sectional shape of the radiator is L-shaped.
Further, the radiator includes lid in L-shaped, the L-shaped lower cover located at lid lower end in L-shaped and in L-shaped
Lid and the L-shaped side cover of L-shaped lower cover both sides, lid, L-shaped lower cover and L-shaped side cover are bonded in by welding or fluid sealant in the L-shaped
Radiator is constituted together, and the vacuum lumen is connected with each other and vacuumizes rear structure by lid, L-shaped lower cover and L-shaped side cover in L-shaped
Into.
Further, the radiator is made up of copper or aluminum.
Present invention also offers a kind of backlight module, including center, the backboard on the side surface of center one, located at backboard
The upper LED backlight in center, the backlight module is also including the radiator structure of described backlight module, the radiator
It is located on backboard at LED backlight, LED backlight is fixed on a heat sink.
Present invention also offers a kind of liquid crystal display module, including liquid crystal panel and backlight assembly, the backlight assembly
Including the LED backlight being located on backboard in center, the backlight module is also tied including the radiating of described backlight module
Structure, the radiator is located at LED backlight on backboard, and LED backlight is fixed on a heat sink.
Present invention also offers a kind of television set, including liquid crystal display module, the liquid crystal display module includes liquid crystal surface
Plate and backlight assembly, the backlight assembly includes the LED backlight being located on backboard in center, and the backlight module is also
Including the radiator structure of described backlight module, the radiator is located at LED backlight on backboard, and LED backlight is solid
Determine on a heat sink.
The present invention compared with prior art, vacuum lumen and injects cold-producing medium, by vacuum by arranging in radiator
Environment reduces the boiling point of cold-producing medium, enabling heat is quickly discharged, so as to improve radiating effect.
Description of the drawings
Fig. 1 is the profile one of the present invention.
Fig. 2 is the profile two of we's invention.
Fig. 3 is the structural representation covered in L-shaped of the present invention.
Fig. 4 is the structural representation of L-shaped lower cover of the present invention.
Fig. 5 is the structural representation of L-shaped side cover of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of radiator structure of backlight module of the present invention, including radiator 1, tool in the radiator 1
There is vacuum lumen 2, cold-producing medium is injected with the vacuum lumen 2, cold-producing medium is water or other liquid.By the way that cold-producing medium is placed in
In vacuum environment, reduce the boiling point of cold-producing medium and after preheat vaporize cold-producing medium, absorb the heat and body of radiator 1
The rapid expansion of product, the cooling medium of gas phase quickly fills with whole cavity, when gas-phase working medium touches a cold region of comparison
The phenomenon of condensation will be produced, the heat accumulated in evaporation is discharged by the phenomenon for condensing, so as to improve radiating effect.
In vacuo the cavity wall in chamber 2 is provided with the microporous layers 3 that at least one of which has micropore, for by the cold-producing medium after condensation
Return at evaporation thermal source by the microporous layers with micropore, this running will go round and begin again in vacuum chamber and carry out.Microporous layers 3 are excellent
Elect as to be sintered by copper powder and make.
Be provided with radiator 1 connect with vacuum lumen 2 vacuumize hole 4 for what is vacuumized, it is described to vacuumize on hole 4
It is provided with closure 5.
As shown in figure 1, the cross sectional shape of radiator 1 is L-shaped；As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, radiator 1 is wrapped
Include lid 6 in L-shaped, the L-shaped lower cover 7 located at the lower end of lid in L-shaped 6 and in L-shaped lid 6 and the both sides of L-shaped lower cover 7 L-shaped side cover
8, lid 6, L-shaped lower cover 7 and L-shaped side cover 8 are bonded together by welding or fluid sealant and constitute radiator 1 in the L-shaped, described
Vacuum lumen 2 passes through lid 6, L-shaped lower cover 7 and L-shaped side cover 8 in L-shaped and is connected with each other and constitutes after vacuumizing, and LED backlight 9 sets
Put in L-shaped on the vertical edge of lid 6.
The edge 10 of 90 degree of bending is respectively equipped with the L-shaped on the vertical edge and widthwise edge of lid 6, for L-shaped lower cover 7
Connection, microporous layers 3 are arranged on lid 6 in L-shaped, L-shaped lower cover 7 and L-shaped side cover 8, vacuumize hole 4 located in L-shaped lid 6 it is horizontal
On edge 10 on side.
Preferably, radiator 1 is made up of copper or aluminum.
Near-end (i.e. the vertical portion of radiator) of the heat that the present invention quickly can produce LED backlight from radiator
The distal end (i.e. the transverse part of radiator) of radiator is passed to, while this transmittance process need not attach the heat-conducting glue of heat pipe, is kept away
Exempt from tradition and also needed to the problem slotted on a heat sink, greatly the efficiency of heat radiation and also reduce cost not to the utmost.
A kind of backlight module of the present invention, including center, the backboard on the side surface of center one, be located on backboard
LED backlight 9 in center, also including the radiator structure of above-mentioned backlight module, the radiator 1 is located at the backlight module
It is located at LED backlight 9 on backboard, LED backlight 9 is fixed on radiator 1, and specifically, LED backlight 9 is arranged on radiating
In the L-shaped of device 1 on the vertical edge of lid 6.
A kind of liquid crystal display module of the present invention, including liquid crystal panel and backlight assembly, the backlight assembly includes setting
The LED backlight 9 being located on backboard in center, the backlight module is also including the radiator structure of above-mentioned backlight module, institute
State radiator 1 to be located at LED backlight 9 on backboard, LED backlight 9 is fixed on radiator 1, specifically, LED-backlit
Source 9 is arranged in the L-shaped of radiator 1 on the vertical edge of lid 6.
A kind of television set of the present invention, including liquid crystal display module, the liquid crystal display module include liquid crystal panel and
Backlight assembly, the backlight assembly includes the LED backlight 9 being located on backboard in center, and the backlight module also includes
The radiator structure of above-mentioned backlight module, the radiator 1 is located at LED backlight 9 on backboard, and LED backlight 9 is fixed
On radiator 1, specifically, LED backlight 9 is arranged in the L-shaped of radiator 1 on the vertical edge of lid 6.
The radiator structure of the backlight module of the present invention is identical with the set location of backlight in backlight module in prior art,
Here no longer does specific restriction.
The present invention is especially suitable for the LED liquid crystal display modules of super high power, the especially TV with ultrahigh resolution
Machine.
Although illustrating and describing the present invention with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case of without departing from the spirit and scope of the present invention limited by claim and its equivalent, can here carry out form and
Various change in details.
Claims (10)
1. a kind of radiator structure of backlight module, including radiator (1), it is characterised in that：There is vacuum in the radiator (1)
Inner chamber (2), in the vacuum lumen (2) cold-producing medium is injected with.
2. the radiator structure of backlight module according to claim 1, it is characterised in that：The cavity wall of the vacuum lumen (2)
It is provided with the microporous layers (3) that at least one of which has micropore.
3. the radiator structure of backlight module according to claim 1 and 2, it is characterised in that：The radiator (1) is provided with
What is connected with vacuum lumen (2) vacuumizes hole (4) for what is vacuumized, and the hole (4) that vacuumizes is provided with closure (5).
4. the radiator structure of backlight module according to claim 2, it is characterised in that：The microporous layers (3) are entered by copper powder
Row sintering is made.
5. the radiator structure of backlight module according to claim 1 and 2, it is characterised in that：The section of the radiator (1)
It is shaped as L-shaped.
6. the radiator structure of backlight module according to claim 5, it is characterised in that：The radiator (1) is including in L-shaped
Lid (6), cover in L-shaped the L-shaped lower cover (7) of (6) lower end and the L-shaped side of (6) and L-shaped lower cover (7) both sides is covered in L-shaped
Lid (8), is covered (6), L-shaped lower cover (7) and L-shaped side cover (8) and is bonded together to constitute by welding or fluid sealant and dissipated in the L-shaped
Hot device (1), the vacuum lumen (2) is connected with each other and takes out true by covering (6), L-shaped lower cover (7) and L-shaped side cover (8) in L-shaped
Constitute after sky.
7. the radiator structure of backlight module according to claim 6, it is characterised in that：The radiator (1) is by copper or aluminium
Material is made.
8. a kind of backlight module, including center, the backboard on the side surface of center one, on backboard be located at center in
LED backlight (9), it is characterised in that：The backlight module also includes the backlight module as described in claim 1-7 any one
Radiator structure, the radiator (1) is located at LED backlight (9) place on backboard, and LED backlight (9) is fixed on radiator
(1) on.
9. a kind of liquid crystal display module, including liquid crystal panel and backlight assembly, the backlight assembly includes upper located at backboard
LED backlight (9) in center, it is characterised in that：The backlight module is also included as described in claim 1-7 any one
Backlight module radiator structure, the radiator (1) is located at LED backlight (9) place on backboard, and LED backlight (9) is solid
It is scheduled on radiator (1).
10. a kind of television set, including liquid crystal display module, the liquid crystal display module includes liquid crystal panel and backlight assembly,
The backlight assembly includes the LED backlight (9) being located on backboard in center, it is characterised in that：The backlight module is also
Including the radiator structure of the backlight module as described in claim 1-7 any one, the radiator (1) is located on backboard
LED backlight (9) place, LED backlight (9) is fixed on radiator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090635.0A CN106647022A (en) | 2016-12-01 | 2016-12-01 | Heat dissipation structure of backlight module, backlight module, liquid crystal display module and television set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090635.0A CN106647022A (en) | 2016-12-01 | 2016-12-01 | Heat dissipation structure of backlight module, backlight module, liquid crystal display module and television set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106647022A true CN106647022A (en) | 2017-05-10 |
Family
ID=58813652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090635.0A Pending CN106647022A (en) | 2016-12-01 | 2016-12-01 | Heat dissipation structure of backlight module, backlight module, liquid crystal display module and television set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106647022A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179631A (en) * | 2017-06-27 | 2017-09-19 | 厦门天马微电子有限公司 | A kind of display device |
| CN109697897A (en) * | 2019-02-20 | 2019-04-30 | 黄梅花 | A kind of Higher Mathematics Teaching equipment |
| CN114153092A (en) * | 2021-12-09 | 2022-03-08 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN116482902A (en) * | 2023-04-27 | 2023-07-25 | 惠科股份有限公司 | Display device and electronic apparatus |
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| CN101561129A (en) * | 2009-05-20 | 2009-10-21 | 梁化军 | Lamp provided with phase change radiator structure and LED |
| CN102612304A (en) * | 2012-03-22 | 2012-07-25 | 深圳市华星光电技术有限公司 | Heat radiation base plate and manufacturing method thereof |
| CN105578840A (en) * | 2015-07-31 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal |
| CN105592666A (en) * | 2014-10-24 | 2016-05-18 | 奇鋐科技股份有限公司 | Display module group having heat radiation structure and hand-held device |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561129A (en) * | 2009-05-20 | 2009-10-21 | 梁化军 | Lamp provided with phase change radiator structure and LED |
| CN102612304A (en) * | 2012-03-22 | 2012-07-25 | 深圳市华星光电技术有限公司 | Heat radiation base plate and manufacturing method thereof |
| CN105592666A (en) * | 2014-10-24 | 2016-05-18 | 奇鋐科技股份有限公司 | Display module group having heat radiation structure and hand-held device |
| CN105578840A (en) * | 2015-07-31 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179631A (en) * | 2017-06-27 | 2017-09-19 | 厦门天马微电子有限公司 | A kind of display device |
| CN107179631B (en) * | 2017-06-27 | 2020-08-25 | 厦门天马微电子有限公司 | Display device |
| CN109697897A (en) * | 2019-02-20 | 2019-04-30 | 黄梅花 | A kind of Higher Mathematics Teaching equipment |
| CN109697897B (en) * | 2019-02-20 | 2024-01-02 | 黄梅花 | Advanced math teaching equipment |
| CN114153092A (en) * | 2021-12-09 | 2022-03-08 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN114153092B (en) * | 2021-12-09 | 2024-02-09 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN116482902A (en) * | 2023-04-27 | 2023-07-25 | 惠科股份有限公司 | Display device and electronic apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |