CN1567064A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN1567064A CN1567064A CN 03148581 CN03148581A CN1567064A CN 1567064 A CN1567064 A CN 1567064A CN 03148581 CN03148581 CN 03148581 CN 03148581 A CN03148581 A CN 03148581A CN 1567064 A CN1567064 A CN 1567064A
- Authority
- CN
- China
- Prior art keywords
- light source
- heat
- light
- order
- groove
- 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
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
This invention relates to an aphototropism module set, which is used, to effectively exclude the heat generated by the light source to ensure its elements not to deform or deteriorate caused by super-heat. The aphototropism module set mainly comprises: multiple light sources, a reflection base socket with a trough surface and a base surface, a heat emission unit, wherein ,the trough surface is formed with multiple troughs to contain the light source and reflect the light .
Description
Technical field
The invention relates to a kind of module backlight and heat dissipating method thereof, refer to a kind of module radiator backlight and method that is applicable to LCD (monitor) and LCD TV especially.
Background technology
LCD (LCD) is non-self luminous display, must can produce Presentation Function by adding the light source mode, and module backlight is promptly played the part of the role of light source in LCD, be one of important key part and component of LCD.Important indicators such as the brightness of LCD, color, power consumption mainly depend on module backlight, if to classify the position of light source, module backlight can be divided into side-light type and straight-down negative two big classes.The light emitting source of side-light type module backlight is single tubes of putting at side, to improve the panel briliancy, is used in notebook computer by light guide plate directing light direction more.Then fluorescent tube is arranged at the display panel rear as for down straight aphototropism mode set, diffuser plate arrange in pairs or groups simultaneously so that the light of each fluorescent tube is projeced into display panel equably, can adjust the number of fluorescent tube according to the luminosity demand of different size panel, be used in table more and put the non-formula products that do such as type LCD (monitor) and LCD TV.Especially LCD TV, because of it has large scale, reaches the demand of high color saturation with great visual angle, and the general LCD of the brightness ratio of demand (monitor) all will come highly, so the fluorescent tube that uses is more and more many.But the heat energy that more and more many fluorescent tubes produce accumulation is also more and more many, causes the spare part of module backlight to produce deflection deformation, even cause the display frame quality bad, produces noises such as ripple.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of module backlight, so that can effectively get rid of the heat that light source produces, avoids high temperature to cause element deformation or damage.
Another object of the present invention is to provide a kind of heat dissipating method of down straight aphototropism mode set,, avoid high temperature to cause element deformation or damage so that can effectively get rid of the heat that light source produces.
Another purpose of the present invention is to provide a kind of LCD, so that can effectively get rid of the heat that light source produces, avoids high temperature to cause element deformation or damage.
For reaching above-mentioned purpose, the present invention's module backlight mainly comprises: a plurality of light sources, in order to illuminating ray to be provided; One diffuser plate is positioned at a side of this light source, in order to this illuminating ray of homogenising; One has the reflection pedestal of a groove surface and a bottom surface, is the opposite side that is positioned at this light source, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And a heat-sink unit, be attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
The heat dissipating method of the present invention's module backlight, main bag refers to following steps:
One module backlight is provided earlier, and this module backlight has a plurality of light sources and ccontaining this light source at least and reflects the reflection pedestal of the light of this light source generation; One diffuser plate then is provided, is positioned at one of this light source side, use so that the equalizing light rays that this light source produces; And again a heat-sink unit is attached at one of this reflection pedestal side, in order to get rid of the heat that this light source produces, wherein should reflect pedestal between this light source and this heat-sink unit.
LCD of the present invention is to comprise: a liquid crystal panel module, have at least two substrates and a liquid crystal layer, and wherein this liquid crystal layer is to be folded between this two substrate; A plurality of light sources are in order to provide this liquid crystal panel module illumination light line; One diffuser plate is between this light source and this liquid crystal panel module, in order to this illuminating ray of homogenising; One has the reflection pedestal of a groove surface and a bottom surface, is to be positioned at one of this light source side, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And a heat-sink unit, be attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
A kind of module backlight mainly comprises:
A plurality of light sources are in order to provide illuminating ray;
One diffuser plate is positioned at one of this light source side, in order to this illuminating ray of homogenising;
One has the reflection pedestal of a groove surface and a bottom surface, is the opposite side that is positioned at this light source, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And
At least one heat-sink unit is attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
Described device, wherein this light source is light emitting diode, electroluminescent cell or cold cathode fluorescent tube.
Described device, wherein this reflection pedestal is that metal plate punching or injection molding method manufacturing form.
Described device, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
Described device, wherein this reflecting material is aluminium or copper.
Described device, wherein this groove be parallel to each other and this groove between between apart from equating.
Described device, wherein this heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
Described device, it is to be used for flat-panel screens.
Described device, wherein this flat-panel screens is a LCD.
A kind of heat dissipating method of module backlight mainly may further comprise the steps:
One module backlight is provided, and this module backlight has a plurality of light sources and ccontaining this light source at least and reflects the reflection pedestal of the light of this light source generation;
One diffuser plate is provided, is positioned at one of this light source side, use so that the equalizing light rays that this light source produces; And
One heat-sink unit is attached at one of this reflection pedestal side,, wherein should reflects pedestal between this light source and this heat-sink unit in order to get rid of the heat that this light source produces.
Described method, wherein this light source is light emitting diode, electroluminescent cell, cold cathode fluorescent tube.
Described method, wherein this reflection pedestal is that metal plate punching or injection molding method manufacturing form.
Described method, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
Described method, wherein this reflecting material is aluminium or copper.
Described method, wherein this light source is for being parallel to each other and equidistantly arranging.
Described method, wherein this heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
A kind of LCD is to comprise:
One liquid crystal panel module is to have at least two substrates and a liquid crystal layer, and wherein this liquid crystal layer is to be folded between this two substrate;
A plurality of light sources are in order to provide this liquid crystal panel module illumination light line;
One diffuser plate is between this light source and this liquid crystal panel module, in order to this illuminating ray of homogenising;
One has the reflection pedestal of a groove surface and a bottom surface, is to be positioned at one of this light source side, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And
One heat-sink unit is attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
Described LCD, wherein this light source is light emitting diode, electroluminescent cell, cold cathode fluorescent tube.
Described LCD, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
Described LCD, wherein this groove be parallel to each other and this groove between between apart from equating.
Described LCD, its center heat-sink unit are at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
The light source that uses in the heat abstractor of the present invention does not have special restriction, can be any conventional lighting sources, and being preferably this light source is light emitting diode (LED), electroluminescent cell (EL) or cold cathode fluorescent tube (CCFL).The reflection pedestal method for making of using in the present invention's module backlight does not have special restriction, can be any existing pedestal manufacture method, and being preferably this reflection pedestal is that metal plate punching or injection molding method manufacturing form.The reflection pedestal that uses in the present invention's module backlight does not have special restriction, can be the reflection pedestal of any existing tool groove, is preferably the reflection pedestal that this groove surface surface-coated has a reflecting material.The reflecting material of this groove surface surface-coated does not have special restriction in the present invention's module backlight, can be any existing reflecting material, and being preferably this reflecting material is aluminium or copper.The reflection base slot shape in the present invention's module backlight and the no special restriction that distributes can be any existing shape and distribution, be preferably that this groove is parallel to each other and this groove between between apart from equal.Heat-sink unit does not have special restriction in the present invention's module backlight, can be any existing heat-sink unit, and being preferably this heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.The present invention's module backlight is applicable to various flat-panel screens, is preferably and is applicable to LCD.
Description of drawings
Fig. 1 is the module stereographic map backlight of a preferred embodiment of the present invention;
Fig. 2 is the module cut-open view backlight of a preferred embodiment of the present invention.
Embodiment
For more understanding technology contents of the present invention, be described as follows especially exemplified by module preferred embodiment backlight.
See also Fig. 1, the stereographic map of preferred embodiment down straight aphototropism mode set of the present invention comprises fluorescent tube 10, reflection pedestal 20, diffuser plate 30 and heat-sink unit 40.The base that reflection pedestal 20 forms for metal plate punching, it simultaneously is a groove surface 21, another side is bottom surface 22, be formed with parallel, equidistant arrangement, and the suitable groove 211 that can ccontaining fluorescent tube 10 of size on the groove surface 21, so that fluorescent tube 10 is parallel and be arranged in equally spacedly on the groove surface 21, and its surface-coated one deck reflecting material, as aluminium or copper, reflex to diffuser plate 30 with light, and make equalizing light rays, to provide liquid crystal panel uniform light from fluorescent tube 10 through diffuser plate 30 with fluorescent tube 10 emission.Heat-sink unit 40 comprises heat radiator 41 and fan 42, and with thermal grease 43 be attached at the reflection pedestal 20 bottom surface 22, then see also the cut-open view of Fig. 2 preferred embodiment of the present invention, heat conduction by reflection pedestal 20, thermal grease 43 and heat radiator 41, the heat that fluorescent tube 10 is produced spreads out of, and it is wandering hot to utilize fan 42 to oppose apace, can effectively get rid of the heat that light source produces, reduce the temperature of module backlight, improve high temperature and cause each unit of module backlight to produce thermal deformation or damage, and problem such as display quality is low.In addition, the present invention outside module backlight, does not produce fan 42 design and assembly so do not have the problem that foreign matter that convection current produces or microparticle pollute module backlight.
The foregoing description only is to give an example for convenience of description, the interest field that the present invention advocated but not only limit to the foregoing description.
Claims (21)
1. a module backlight is characterized in that, mainly comprises:
A plurality of light sources are in order to provide illuminating ray;
One diffuser plate is positioned at one of this light source side, in order to this illuminating ray of homogenising;
One has the reflection pedestal of a groove surface and a bottom surface, is the opposite side that is positioned at this light source, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And
At least one heat-sink unit is attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
2. device as claimed in claim 1 is characterized in that, wherein this light source is light emitting diode, electroluminescent cell or cold cathode fluorescent tube.
3. device as claimed in claim 1 is characterized in that, wherein this reflection pedestal is that metal plate punching or injection molding method manufacturing form.
4. device as claimed in claim 1 is characterized in that, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
5. device as claimed in claim 1 is characterized in that, wherein this reflecting material is aluminium or copper.
6. device as claimed in claim 1 is characterized in that, wherein this groove be parallel to each other and this groove between between apart from equating.
7. device as claimed in claim 1 is characterized in that, wherein this heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
8. device as claimed in claim 1 is characterized in that it is to be used for flat-panel screens.
9. device as claimed in claim 8 is characterized in that, wherein this flat-panel screens is a LCD.
10. the heat dissipating method of a module backlight is characterized in that, mainly may further comprise the steps:
One module backlight is provided, and this module backlight has a plurality of light sources and ccontaining this light source at least and reflects the reflection pedestal of the light of this light source generation;
One diffuser plate is provided, is positioned at one of this light source side, use so that the equalizing light rays that this light source produces; And
One heat-sink unit is attached at one of this reflection pedestal side,, wherein should reflects pedestal between this light source and this heat-sink unit in order to get rid of the heat that this light source produces.
11. method as claimed in claim 10 is characterized in that, wherein this light source is light emitting diode, electroluminescent cell, cold cathode fluorescent tube.
12. method as claimed in claim 10 is characterized in that, wherein this reflection pedestal is that metal plate punching or injection molding method manufacturing form.
13. method as claimed in claim 10 is characterized in that, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
14. method as claimed in claim 13 is characterized in that, wherein this reflecting material is aluminium or copper.
15. method as claimed in claim 10 is characterized in that, wherein this light source is for being parallel to each other and equidistantly arranging.
16. method as claimed in claim 10 is characterized in that, wherein this heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
17. a LCD is characterized in that, is to comprise:
One liquid crystal panel module is to have at least two substrates and a liquid crystal layer, and wherein this liquid crystal layer is to be folded between this two substrate;
A plurality of light sources are in order to provide this liquid crystal panel module illumination light line;
One diffuser plate is between this light source and this liquid crystal panel module, in order to this illuminating ray of homogenising;
One has the reflection pedestal of a groove surface and a bottom surface, is to be positioned at one of this light source side, wherein is formed with a plurality of grooves on this groove surface, in order to ccontaining this light source and reflect this illuminating ray; And
One heat-sink unit is attached at this bottom surface of this reflection pedestal, in order to get rid of the heat that this light source produces.
18. LCD as claimed in claim 1 is characterized in that, wherein this light source is light emitting diode, electroluminescent cell, cold cathode fluorescent tube.
19. LCD as claimed in claim 1 is characterized in that, wherein this groove surface surface-coated of this reflection pedestal has a reflecting material.
20. LCD as claimed in claim 1 is characterized in that, wherein this groove be parallel to each other and this groove between between apart from equating.
21. LCD as claimed in claim 1 is characterized in that, its center heat-sink unit is at least a group that is made up of heat radiator, thermal grease or fan that is selected from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03148581 CN1567064A (en) | 2003-07-04 | 2003-07-04 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03148581 CN1567064A (en) | 2003-07-04 | 2003-07-04 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1567064A true CN1567064A (en) | 2005-01-19 |
Family
ID=34472325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03148581 Pending CN1567064A (en) | 2003-07-04 | 2003-07-04 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1567064A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376972C (en) * | 2005-04-29 | 2008-03-26 | 友达光电股份有限公司 | Directed-down light-negative moulding set |
| CN100397201C (en) * | 2005-12-09 | 2008-06-25 | 群康科技(深圳)有限公司 | Backlight module group and liquid crystal display |
| US7445356B2 (en) | 2005-05-17 | 2008-11-04 | Hon Hai Precision Industry Co., Ltd. | Backlight device |
| CN100437277C (en) * | 2005-09-22 | 2008-11-26 | 鸿富锦精密工业（深圳）有限公司 | Back-light model group |
| CN100437275C (en) * | 2005-05-18 | 2008-11-26 | 鸿富锦精密工业（深圳）有限公司 | Direct type backlight module assembly |
| CN102162600A (en) * | 2010-12-31 | 2011-08-24 | 友达光电（苏州）有限公司 | Backlight module and three-dimensional display device |
| CN102734694A (en) * | 2011-04-15 | 2012-10-17 | 宏碁股份有限公司 | Backlight module |
| CN102797965A (en) * | 2012-08-23 | 2012-11-28 | 歌尔声学股份有限公司 | Rapid metal plate molding sample piece and manufacturing method thereof |
| US8436957B2 (en) | 2008-12-26 | 2013-05-07 | Lg Display Co., Ltd. | Liquid crystal display device having good heat radiating function |
-
2003
- 2003-07-04 CN CN 03148581 patent/CN1567064A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376972C (en) * | 2005-04-29 | 2008-03-26 | 友达光电股份有限公司 | Directed-down light-negative moulding set |
| US7445356B2 (en) | 2005-05-17 | 2008-11-04 | Hon Hai Precision Industry Co., Ltd. | Backlight device |
| CN100517008C (en) * | 2005-05-17 | 2009-07-22 | 鸿富锦精密工业（深圳）有限公司 | Direct type backlight module assembly |
| CN100437275C (en) * | 2005-05-18 | 2008-11-26 | 鸿富锦精密工业（深圳）有限公司 | Direct type backlight module assembly |
| US7513651B2 (en) | 2005-05-18 | 2009-04-07 | Hon Hai Precision Industry Co., Ltd. | Backlight module including heat pipe with nano-scaled recesses |
| CN100437277C (en) * | 2005-09-22 | 2008-11-26 | 鸿富锦精密工业（深圳）有限公司 | Back-light model group |
| CN100397201C (en) * | 2005-12-09 | 2008-06-25 | 群康科技(深圳)有限公司 | Backlight module group and liquid crystal display |
| US8436957B2 (en) | 2008-12-26 | 2013-05-07 | Lg Display Co., Ltd. | Liquid crystal display device having good heat radiating function |
| CN102162600A (en) * | 2010-12-31 | 2011-08-24 | 友达光电（苏州）有限公司 | Backlight module and three-dimensional display device |
| CN102734694A (en) * | 2011-04-15 | 2012-10-17 | 宏碁股份有限公司 | Backlight module |
| CN102797965A (en) * | 2012-08-23 | 2012-11-28 | 歌尔声学股份有限公司 | Rapid metal plate molding sample piece and manufacturing method thereof |
| CN102797965B (en) * | 2012-08-23 | 2016-01-20 | 歌尔声学股份有限公司 | Panel beating rapid shaping exemplar and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI401505B (en) | Liquid crystal display device | |
| US20070171626A1 (en) | Direct type backlight module | |
| US20070253219A1 (en) | Backlight assembly and liquid crystal display device having the same | |
| US8231238B2 (en) | Method for enhancing light directivity of a lighting apparatus | |
| US20120069569A1 (en) | Light emitting diode light bar structure having heat dissipation function | |
| CN1779524A (en) | Backlight assembly and liquid crystal display device having the same | |
| CN1844984A (en) | LED module assembly and backlight system using the same | |
| CN1721928A (en) | Display device | |
| CN101046578A (en) | Light emitting diode backlight unit and liquid crystal display having the same | |
| US20070147079A1 (en) | Backlight module with multiple light sources | |
| CN101097349A (en) | Backlight assembly and liquid crystal display device having the same | |
| US8625051B2 (en) | Liquid crystal display and backlight module for the same | |
| CN1818762A (en) | Backlight module | |
| CN1731250A (en) | Direct type backlight module | |
| KR20050022820A (en) | device for back light unit using LED chip | |
| US20120044438A1 (en) | Backlight module | |
| CN1567064A (en) | Backlight module | |
| CN1702516A (en) | Backlight unit | |
| WO2012022076A1 (en) | Backlight module | |
| CN1725082A (en) | Direct type back light module | |
| CN1967347A (en) | Direct lighting backlight module | |
| JP2012248769A (en) | Light-emitting device and display device | |
| TW201124779A (en) | Backlight unit and liquid crystal display device having the same | |
| CN101078838A (en) | Backlight module | |
| CN1664673A (en) | Backlight module and method for forming the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |