CN1317592C - Heat radiation fixing device and its radiation method - Google Patents
Heat radiation fixing device and its radiation method Download PDFInfo
- Publication number
- CN1317592C CN1317592C CNB2004100589135A CN200410058913A CN1317592C CN 1317592 C CN1317592 C CN 1317592C CN B2004100589135 A CNB2004100589135 A CN B2004100589135A CN 200410058913 A CN200410058913 A CN 200410058913A CN 1317592 C CN1317592 C CN 1317592C
- Authority
- CN
- China
- Prior art keywords
- light source
- heat conduction
- heat
- fixed component
- stationary installation
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a heat radiation fixing device and a radiation method thereof. With a fixing part clamped to a heat conduction fixing member, the heat generated by a light source is conducted to the heat conduction fixing member by the fixing part for heat elimination.
Description
Technical field
The heat dissipating method of the relevant a kind of light source of the present invention, the heat dissipating method of particularly relevant light source with a tool high thermal conductivity coefficient and the heat radiation of flexible material, and it can be applicable on the module backlight.
Background technology
Along with the digital network development of science and technology, little by little influence the 21st century mankind's work and life.LCD screen (LCD) has been widely used in each aspect in the daily life, its LCD panel industry except originally with notebook computer (NB) as the core application, more use development with all strength towards the market that comprises information household appliances such as LCD computer screen, Portable consumption-orientation video and audio product, mobile phone and liquid crystal TV set.
Utilization backlight formula backlight assembly is the mode of widely using for as the mode that LCD brightness is provided.Present various forms of backlight has the advantage that luminescence efficiency is stable, lamp tube service life is long; Yet because the plane of light source is to use glass as substrate more, and working temperature is quite high, so need carry out appropriate heat radiation, just can keep the degree of stability and the life-span of light source.
Shown in Figure 1A, and be example with a planar light source, existing structure in order to fixed light source 11 is by the fixed part 111 that is bonded to retaining element 151,153,155 and 157 fixed light sources 11, so that light source 11 is launched light towards fixing direction.Then, again with shell 19 with light source 11, retaining element 151,153,155 and 157 and the element (as elements such as diffuser plate, reflector plate, polaroids) of other lcd screens combine.And owing to must properly get rid of the heat that light source 11 is produced, so prior art is by means of keeping partly space (as the space between retaining element 155,157 and the light source 11), to reach the effect of heat radiation by flowing of air between the space between retaining element 151,153,155 and 157.
Yet, the mode of dispelling the heat by keeping the space, except can't dispelling the heat very effectively, more because of the existence in space, can't prevent in assembling process effectively that all contaminations from dropping between retaining element 151,153,155 and 157, uniformity coefficient or the brightness (luminescent quality) of the pollutant effect that drops when light source 11 is launched light, and the quality of LCD is descended.
In addition, shown in Figure 1B, prior art cooperates the fixed part 111 of retaining element 151 and 153 fixed light sources 11, to keep light source 11 to a fixed-direction divergent rays by form a fixture 13 with materials such as resin or rubber.Because fixture 13 is to be a rubber-like material, so when being subjected to external force, can absorb by the vibrations of importing into outward or being transmitted by fixed part 111 by fixture 13,, or have influence on the stability of light source 11 when operating in order to avoid light source 11 damages to some extent because of vibrations.
Yet, because fixture 13 mostly is the not good material of thermal conductive property, thus also can't can help light source 11 to dispel the heat as the existing structure shown in Figure 1A, and then may be because of bad life-span or the luminescent quality that has influence on light source 11 of dispelling the heat.
As mentioned above, need develop and a heat dissipating method that is applicable to backlight assembly and light source, the heat that is produced to get rid of light source effectively, and prevent operational stability or the life-span of external or inner vibration influence to light source, even its luminescent quality.
Summary of the invention
The shortcoming of prior art in view of the above, purpose of the present invention to get rid of the heat that light source produces, overcomes the shortcoming of prior art for a heat radiation stationary installation and a heat dissipating method is provided, and can reach the effect of shock-absorbing, prolong the life-span and the operational degree of stability of light source.
A kind of stationary installation of the present invention comprises: a light source has a fixed part; One heat conduction fixed component is in order to this fixed part of clamping; And set parts, this heat conduction fixed component is bonded to this set parts; Wherein, conduct the heat that this light source produces by this fixed part, to this heat conduction fixed component to get rid of this heat.
Heat radiation stationary installation of the present invention and heat dissipating method by the fixed part of a heat conduction fixed component clamping light source, and utilize the set parts that the heat conduction fixed component is bonded to a fixed position.Then, be held on fixed part, by the fixed part conduction heat that light source produced, to reach the purpose of heat radiation by the heat conduction fixed component.
Each feature of aforesaid the present invention will be described in detail in following preferred embodiment.
Description of drawings
Figure 1A and Figure 1B are the structures of existing backlight assembly;
Fig. 2 is first embodiment of backlight assembly of the present invention;
Fig. 3 is second embodiment of backlight assembly of the present invention;
Fig. 4 is the sectional view of second embodiment of backlight assembly of the present invention; And
Fig. 5 is the sectional view of second embodiment of backlight assembly of the present invention.
Embodiment
The invention provides a kind of heat radiation stationary installation and heat dissipating method, will be in following detailed description.The embodiment of the invention is based on the described problem of solution prior art, but the claim of institute of the present invention tool does not exceed with the description of following figure and embodiment, and should be as the criterion with the claim scope and the spirit of being applied for.
First embodiment of the invention is an example with a backlight assembly with planar light source as shown in Figure 2, and this backlight assembly has light source 21, heat conduction fixed component 23 and set parts 25; Light source 21 has fixed part 211, and fixed part 211 in 23 clampings of heat conduction fixed component, and by set parts 25 heat conduction fixed component 23 is bonded to a fixed position.Fixing heat conduction fixed component 23 by set parts 25, and heat conduction fixed component 23 makes by fixing fixed part 211 light source 21 launch uniform light towards a fixing direction.
The heat conduction fixed component 23 that is bonded between the set parts 25 is to be a tool high thermal conductivity coefficient (approximately greater than 1.0W/mK) and the flexible material of tool, as Lanjo Rubber Enterprises CO., LTD. the Lanjo Silicone SA600 Stock that is produced is a kind of material that can be applied in the technology contents of the present invention, so fixed part 211 by 23 connections of heat conduction fixed component and fixed light source 21, can allow light source 21 because of running and the heat that emits beam and produce, conduct to heat conduction fixed component 23 and reach radiating effect via fixed part 211.Again because of heat conduction fixed component 23 has elasticity, so the also vibrations that can receive fixed part 211 to be transmitted, to prevent under various situations (as drop test, or handling process etc.), light source 21 produces and gets loose or ruined phenomenon.
In present embodiment, fixed part 211 be for one can be luminous the zone, so can be as shown in FIG., the surface between heat conduction fixed component 23 and fixed part 211 forms a reflecting surface 231, to reflect the light that is sent by fixed part 211, to improve the usefulness of utilizing of light.
So, can prevent from pollutant to be dropped on light source 21, and influence luminescent quality for heat radiation by backlight assembly of the present invention.Also can when preventing that light source 21 is subjected to external force vibrations, reach the effect of heat radiation, reduce the temperature of light source 21, prolong the serviceable life of light source 21 with appropriateness, with and the stability of operation.
As the first embodiment of the present invention, fixed part 211 is the zones that can emit beam for, and does not touch set parts 25; But also can be the needs of global design and shown in Figure 3 as second embodiment of the invention, be example also with a planar light source, the set parts are made up of retaining element on one 251 and retaining element 253 once, and the fixed part 211 of light source 21 then is held between the following retaining element 253 of heat conduction fixed component 23 and set parts.And in this embodiment, partial fixing portion 211 is the electrode districts for light source 21; Provide power supply so that light source 21 emits beam via fixed part 211.
Fig. 4 is for prolonging the sectional view that Fig. 3 profile line AA ' is looked.One power supply device 27 is held in the heat conduction fixed component 23, and 211 of fixed parts are electrically connected to power supply device 27 to provide light source 21 power supplys by a plurality of plugs 271, and light source 21 is emitted beam.So because power supply device 27 all is held on heat conduction fixed component 23 with fixed part 211 as the power supply place, so heat that can be produced by heat conduction fixed component 23 conduct electricity source supply devices 27 and fixed part 211, and got rid of, reach the effect of heat radiation.
In addition, Fig. 5 is for prolonging the sectional view that Fig. 3 profile line BB ' is looked.Heat dissipation in response to global design or increase heat conduction fixed component 23 can make the heat conduction fixed component have a plurality of sunk structures 233, to increase the area of dissipation of heat conduction fixed component 23; And as shown in FIG., in this embodiment, sunk structure 233 is to be formed at the surface that heat conduction fixed component 23 does not touch fixed part 211 and set parts 25.Sunk structure 233 also can be formed at other parts of heat conduction fixed component 23 according to global design; In addition, heat conduction fixed component 23 not only can be got rid of heat by its surface (as the surface of sunk structure 233), more can utilize other modes to get rid of heat, for example, and with the material thermal contact conductance fixed component 23 of another high thermal conductivity coefficient, to get rid of heat.And, in order to keep or increase the utilization factor of light, also can form reflecting surface 231 in the surface of sunk structure 233, make the light that is projected to heat conduction fixed component 23 surfaces, the face 231 that can be reflected reflects, and keeps or promote the utilization factor of light, reduces optical loss.
So heat radiation stationary installation of the present invention and its heat dissipating method can prevent the pollution that causes for the heat radiation purpose.And can get rid of the heat that light source produced by the heat conduction fixed component, and prevent operational stability or the life-span of external or inner vibration influence, even the luminescent quality of light source to light source.
The above is preferred embodiment of the present invention only, is not in order to limit claim of the present invention; All other do not break away from the change or the replacement of the equivalence of being finished under the disclosed spirit, all should be included in the following claim scope.
Claims (10)
1. stationary installation comprises:
One light source has a fixed part;
One heat conduction fixed component is in order to this fixed part of clamping; And
One set parts, this heat conduction fixed component is bonded to this set parts;
Wherein, conduct the heat that this light source produces by this fixed part, to this heat conduction fixed component to get rid of this heat.
2, stationary installation as claimed in claim 1 is characterized in that these set parts have on one retaining element and retaining element once.
3, stationary installation as claimed in claim 1, the coefficient of heat conductivity that it is characterized in that this heat conduction fixed component is approximately greater than 1.0W/mK.
4, stationary installation as claimed in claim 1 is characterized in that this fixed part is held between this heat conduction fixed component and this set parts.
5, stationary installation as claimed in claim 1 is characterized in that also comprising that a reflecting surface is formed at the surface of this heat conduction fixed component, and wherein this reflecting surface is formed between this heat conduction fixed component and this fixed part.
6, stationary installation as claimed in claim 1 is characterized in that also comprising that a power supply device and this light source electrically connect.
7, stationary installation as claimed in claim 1 is characterized in that this heat conduction fixed component has a plurality of sunk structures.
8, stationary installation as claimed in claim 7 is characterized in that this sunk structure is formed at a surface of this heat conduction fixed component, and this surface does not contact this fixed part and this set parts.
9, stationary installation as claimed in claim 1 is characterized in that this light source is to be a planar light source.
10, stationary installation as claimed in claim 1, the material that it is characterized in that this heat conduction fixed component are to be Lanjo Silicone SA600 Stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100589135A CN1317592C (en) | 2004-07-19 | 2004-07-19 | Heat radiation fixing device and its radiation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100589135A CN1317592C (en) | 2004-07-19 | 2004-07-19 | Heat radiation fixing device and its radiation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588193A CN1588193A (en) | 2005-03-02 |
| CN1317592C true CN1317592C (en) | 2007-05-23 |
Family
ID=34603379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100589135A Expired - Fee Related CN1317592C (en) | 2004-07-19 | 2004-07-19 | Heat radiation fixing device and its radiation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1317592C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110012780A (en) * | 2009-07-31 | 2011-02-09 | 엘지디스플레이 주식회사 | Liquid crystal display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3965345A (en) * | 1973-06-26 | 1976-06-22 | Kicon Ag | Fixture for the mounting and cooling of fluorescent tubes |
| US5161884A (en) * | 1990-04-30 | 1992-11-10 | The Regents Of The University Of California | Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures |
| US5886341A (en) * | 1994-06-29 | 1999-03-23 | Hamamatsu Photonics K.K. | Photodetection tube with a slidably adapted cathode substrate |
| JP2000299524A (en) * | 1999-04-16 | 2000-10-24 | Nippon Telegr & Teleph Corp <Ntt> | Cooling device for laser light-emitting device |
| CN1428751A (en) * | 2001-12-28 | 2003-07-09 | 富士通显示技术株式会社 | Behind lighting device and liquid crystal display using the same |
| CN1436374A (en) * | 2001-04-12 | 2003-08-13 | 松下电工株式会社 | Light source device using LED, and method of producing same |
| CN1479139A (en) * | 2002-08-27 | 2004-03-03 | 明基电通股份有限公司 | Fluorescent tube module and back light device including said fluorescent tube module |
-
2004
- 2004-07-19 CN CNB2004100589135A patent/CN1317592C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3965345A (en) * | 1973-06-26 | 1976-06-22 | Kicon Ag | Fixture for the mounting and cooling of fluorescent tubes |
| US5161884A (en) * | 1990-04-30 | 1992-11-10 | The Regents Of The University Of California | Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures |
| US5886341A (en) * | 1994-06-29 | 1999-03-23 | Hamamatsu Photonics K.K. | Photodetection tube with a slidably adapted cathode substrate |
| JP2000299524A (en) * | 1999-04-16 | 2000-10-24 | Nippon Telegr & Teleph Corp <Ntt> | Cooling device for laser light-emitting device |
| CN1436374A (en) * | 2001-04-12 | 2003-08-13 | 松下电工株式会社 | Light source device using LED, and method of producing same |
| CN1428751A (en) * | 2001-12-28 | 2003-07-09 | 富士通显示技术株式会社 | Behind lighting device and liquid crystal display using the same |
| CN1479139A (en) * | 2002-08-27 | 2004-03-03 | 明基电通股份有限公司 | Fluorescent tube module and back light device including said fluorescent tube module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1588193A (en) | 2005-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070171626A1 (en) | Direct type backlight module | |
| US20070063338A1 (en) | Bottom lighting type backlight module | |
| US7364344B2 (en) | Lamp housing and backlight module using the same | |
| US20070053165A1 (en) | Thermal module and backlight system using the same | |
| US20110007521A1 (en) | Backlight module with a heat conductive block | |
| TWI461798B (en) | Backlight module for providing light to a display panel and display device therewith | |
| WO2013075368A1 (en) | Backlight module and liquid crystal display device | |
| US20070182884A1 (en) | Backlight module and liquid crystal display device incorporating the same | |
| US7517126B2 (en) | Light source structure of backlight module | |
| JP2016025080A (en) | Backlight device | |
| TW201020639A (en) | Backlight module structure and the liquid crystal display using the same | |
| CN1321345C (en) | Sidelight back light module | |
| US7445356B2 (en) | Backlight device | |
| CN1317592C (en) | Heat radiation fixing device and its radiation method | |
| KR20110049550A (en) | Backlight unit and liquid crystal display device using the same | |
| CN115453790B (en) | Backlight module and display device | |
| EP1944633B1 (en) | Light source structure with reflecting elements of edge-lit backlight module | |
| CN213750493U (en) | Optical engine and projection equipment | |
| JP2006058485A (en) | Heat dissipator and display device | |
| JP2006039341A (en) | Liquid crystal display device | |
| KR100730078B1 (en) | cooling system and the method for backlight system using theremoelectric element | |
| CN114141163A (en) | Lamp panel structure and display device | |
| CN103064214A (en) | Display device with radiating fins and electronic device thereof | |
| US8752997B2 (en) | Backlight module and method for coating a thermal conducting material on the backlight module | |
| CN109375420A (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20210719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |