CN100591978C - Back light module structure and its display device - Google Patents
Back light module structure and its display device Download PDFInfo
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- CN100591978C CN100591978C CN200810178768A CN200810178768A CN100591978C CN 100591978 C CN100591978 C CN 100591978C CN 200810178768 A CN200810178768 A CN 200810178768A CN 200810178768 A CN200810178768 A CN 200810178768A CN 100591978 C CN100591978 C CN 100591978C
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Abstract
The invention relates to a backlight module structure and a display device thereof, wherein the backlight module structure comprises a shell, a reflector plate and a light source module. The shell isprovided with an inner side, an outer side and a plurality of first opening holes. The reflector plate is arranged on the inner side, and has a plurality of second opening holes opposite to the firstopening holes respectively. The light source module is provided with a plurality of light sources, wherein the light source module is arranged on the outer side, and each light source respectively passes through each first opening hole and each second opening hole. When the light sources dim or have other problems, the light source module can be detached from the shell so as to be convenient to maintain.
Description
Technical field
The invention relates to a kind of backlight modular structure, and particularly utilize light emitting diode and the backlight modular structure of can do over again (rework) relevant for a kind of.
Background technology
LCD (LCD) is non-self-luminous Display Technique, therefore for most of LCD, backlight module (backlight module) is indispensable spare part, different backlight module Technology Selection, to thickness weight, the display quality of final products, whether meet that environmental regulation requires, power supply service efficiency, life of product, price competitiveness etc. all have decisive influence.
Present most LCD all adopts cold-cathode tube (CCFL) as back light, yet it only can reach 70～80% NTSCs (National Television StandardsCommittee; NTSC) colour gamut of institute's standard performance.In addition, cold-cathode tube also mercurous (Hg) is not inconsistent the environmental regulations in European Union market.In the face of these problems, the alternative solution that global panel of LCD and relevant dealer also seek cold-cathode tube just energetically, wherein the most positive discussion be with the possibility of light emitting diode (LED) as backlight.Light emitting diode possesses characteristics such as high sophistication, high briliancy, no mercury, high color reprodubility as backlight, so can provide LCD higher color representation.
As shown in Figures 1 and 2, known to the LCD of LED as backlight, its backlight modular structure 10 comprises housing 12, light-emitting diode (LED) module 15, reflector plate 18 and a plurality of blooming piece 20.Backlight module 10 is respectively with assemblings such as a plurality of blooming pieces 20, reflecting plate 18 and light-emitting diode (LED) modules 15 and be coated in the housing 12.A plurality of light emitting diodes 14 are divided on the printed circuit board (PCB) 16, and corresponding each light emitting diode 14 of reflector plate 18 are formed with a plurality of holes 19, so that each hole 19 passes each corresponding light emitting diode 14 and is attached on light-emitting diode (LED) module 15 sides.
When the lighting function or the performance of light emitting diode 14, when for example producing local dimness (local dimming) or three primary colors dimness (RGB dimming), promptly need adjust maintenance, so that backlight module 10 provides normal colourity.In the process of maintenance, each stacking element must be dismantled one by one, could take out the light-emitting diode (LED) module 15 of being located at housing 12 inboards, to carry out the repairing of necessity, such as renewal or proofread and correct this bad light emitting diode 14 etc.Yet desire to carry out the quite inconvenience and disassembly process is complicated again is difficult for of above-mentioned maintenance activity, therefore in order to improve known problem and to reach other purpose, the inventor proposes following design then.
Summary of the invention
Main purpose of the present invention is to provide a kind of maintenance (Rework) backlight modular structure and display unit thereof easily.
Another purpose of the present invention is to provide a kind of can directly be provided with the backlight modular structure and the display unit thereof of heat radiation/samming element on light source module (being PCB).
Another purpose of the present invention is to provide a kind of backlight modular structure and display unit thereof that increases light mixing distance.
Another purpose of the present invention is to provide lighter backlight modular structure of a kind of weight and display unit thereof.
The present invention provides a kind of backlight modular structure, comprises housing, reflector plate and light source module.Housing has medial surface, lateral surface, a plurality of first perforate and a plurality of blooming piece.Reflector plate is arranged on the medial surface, has a plurality of second perforates of each first perforate relatively on the reflector plate.Light source module has a plurality of light sources, and wherein light source module is arranged on the lateral surface, and each light source passes each first perforate and each second perforate respectively.
In preferred embodiment, housing has more back wall, and medial surface and lateral surface are the corresponding two sides that is formed at back wall respectively.Each light source passes each first perforate and second perforate respectively singlely, and the section shape that each light source is parallel to housing is corresponding with each first hole shape.In addition, light source module is to be embedded above-mentioned light source by circuit substrate to be constituted.When light source module was embedded on the housing, circuit substrate was to be arranged at outside the lateral surface of housing, and its upper surface is not to be exposed in above-mentioned first perforate.
The present invention more provides a kind of display unit, comprises framework and backlight module.Backlight module promptly is made of aforementioned embodiments, does not repeat them here.
Compared with prior art, maintenance activity conveniently and disassembly process is easy again after the application technical solution of the present invention.
Description of drawings
Fig. 1 is known backlight modular structure exploded view;
Fig. 2 is the side view of Fig. 2;
Fig. 3 is a backlight modular structure exploded view of the present invention;
Fig. 4 a is the side view of Fig. 3;
Fig. 4 b is the opposite side view of Fig. 3;
Fig. 5 a is provided with the schematic diagram of cooling mechanism for backlight module of the present invention;
Fig. 5 b is provided with another schematic diagram of cooling mechanism for backlight module of the present invention;
Fig. 6 is the exploded view of display unit of the present invention; And
Fig. 7 is the side view of display unit of the present invention.
Drawing reference numeral:
100 backlight modules
110 light source modules
112 circuit substrates
114 light sources
120 housings
121 back walls
122 first perforates
124 medial surfaces
126 lateral surfaces
128 sidewalls
130 reflector plates
132 second perforates
150 blooming pieces
200 cooling mechanisms/heat pipe
300 fin
700 display unit
710 liquid crystal panels (cell)
Frame before 720
The specific embodiment
The present invention be a kind of housing is offered a plurality of perforates in case a plurality of light sources of light source module from hull outside face assembling backlight modular structure and display unit thereof thereon.In preferred embodiment, light source module is light-emitting diode (LED) module (LED Module), and light source then is light emitting diode (light emitting diode; LED), wherein LED source can be and is provided with singlely or is located on the light-emitting diode (LED) module in modular mode individually, for example light-emitting diode light bar (LED light bar) or other light-emitting diode (LED) module.In addition, backlight modular structure of the present invention is preferably the backlight as liquid crystal panel (LCD), and is preferably and is applied on large-sized liquid crystal indicator.Yet in other different embodiment, backlight modular structure also can use in traffic sign, car light, advertisement plate or other device.
Fig. 3 and Fig. 4 a are the exploded view and the side view of backlight modular structure of the present invention.Backlight module 100 of the present invention comprises housing 120, reflector plate 130, light source module 110 and a plurality of blooming piece 150.Housing 120 has medial surface 124, lateral surface 126 and a plurality of first perforate 122.Among the embodiment as shown in Figure 3, housing 120 has more back wall 121, and medial surface 124 and lateral surface 126 are the corresponding two sides that are respectively back wall 121.Have more the side shell 128 that extends perpendicular to medial surface 124 around the back wall 121, for coating blooming piece 150 or other suitable element.Blooming piece 150 can comprise diffuser plate, prismatic lens, brightness enhancement film, reflector plate etc., so that characteristics such as light harvesting, even light to be provided.Have a plurality of second perforates 132 of relative first perforate 122 on the reflector plate 130, in other words, first perforate 122 is similar to the shape of second perforate 132.Reflector plate 130 is arranged on the medial surface 124, for the side light projector is reflected to increase the utilization of light.
In the present embodiment, reflector plate 130 is preferably on the medial surface 124 that directly is attached at housing 120.Therefore, when housing 120 produces relative motions with light source module 110, for example dismounting or assembling, what reflector plate 130 can't interference light source module 110 moves.In addition, housing 120 is offered a plurality of first perforates 122, can make backlight module 100 overall weight of the present invention alleviate.
As shown in Figure 3, light source module 110 has a plurality of light sources 114.Light source 114 described herein is the light-emitting diode light bar or the module of light emitting diode and arrangement or composition.Light source module 110 is arranged on the lateral surface 126 of housing 120, and each light source 114 is to pass each first perforate 122 and each second perforate 132 respectively, and protrudes to the medial surface 124 of housing 120.Light source module 110 is to be made of circuit substrate 112 and above-mentioned light source 114, and each light source 114 is to be embedded respectively to be distributed on the circuit substrate 112.Shown in Fig. 4 a, when light source module 110 from housing 120 lateral surfaces 126 during to housing 120 assembling, circuit substrate 112 is preferably on the lateral surface 126 that contacts at housing 120; Meaning is that circuit substrate 112 is to be located at outside the lateral surface 126 of housing 120.The upper surface of circuit substrate 112 is preferably and is not exposed in above-mentioned first perforate 122.Each light source 114 passes each first perforate 122 and second perforate 132 respectively, and the section shape that each light source 114 is parallel to housing 120 is preferably identical with each first perforate 122 and second perforate, 132 shapes.Yet in the embodiment shown in Fig. 4 b, when light source module 110 from housing 120 lateral surfaces 126 during to housing 120 assembling, circuit substrate 112 also can keep certain distances with the lateral surface 126 of housing 120, to increase the rate of heat dispation of fuel factor.
In the present embodiment, the section shape of each light source 114 is preferably rectangle.Yet in other different embodiment, the section shape of each light source 114 also can comprise circle, ellipse, triangle or other is irregularly shaped.In other words, the shape of each first perforate 122 and second perforate 132 design that can make corresponding changes with the section shape of light source 114.In addition, in the present embodiment, light source module 114 is moved on the lateral surface 126 of housing 120, also increased led light source 114 light mixing distance, make backlight module 100 more can enrich the color function of liquid crystal panel.
Fig. 5 a implements illustration for the present invention is provided with one of cooling mechanism.The present invention directly is located at light source module 110 on the lateral surface 126 of housing 120 and has more another advantage, be that light source module 110 has greater room cooling mechanism 200 (or samming element) is set, produce fuel factors and heat dissipation problems such as its briliancy of remote-effects and colourity to solve light source 114.Shown in Fig. 5 a, in the present embodiment, offer hole behind each light source 114 of light source module 110, to plug heat pipe (Heat pipe) or other heat dissipation element as cooling mechanism 200.Yet in the embodiment shown in Fig. 5 b, also fin 210 (Heat sink) can be set, by contacting of fin 210 and light source 114, heat is conducted outside housing 120 lateral surfaces 126 in each light source 114 bottom.In further different embodiment, after the heat conduction by above-mentioned cooling mechanism 200, recycling fan (fan) is taken heat out of, to reach the effect of Homogeneouslly-radiating.
In addition, shown in Fig. 5 a, light source module 110 is preferably with some screws 300 and is locked on the back wall 121 of housing 120.Yet in the embodiment shown in Fig. 5 b, light source module 110 can also engage or bonding method is located on the lateral surface 126 of housing 120.When light source 114 produces local dimness or other reason that need keep in repair, only need unload screw 300 or other related elements, can separate light source module 110 from housing 120 and reflector plate 130, bad light source 114 is carried out necessary repairing (repair).Otherwise, when assembling light source module 110 on the lateral surface 126 of housing 120 time, each light source 114 penetrated corresponding each first perforate 122 and second perforate 132 after, with screw or other related elements is fixing can finish assembling or dismounting action easily.
Fig. 6 and Fig. 7 are the exploded view and the side view of flat display apparatus of the present invention.The present invention more provides a kind of display unit 700, frame 720 and backlight module 100 before comprising.In embodiment as shown in Figure 6, display unit 700 more comprises liquid crystal panel 710, for receiving picture signal, to form pixel.Liquid crystal panel 710 is located between blooming piece 150 and the preceding frame 720, and assembles with the backlight module 100 that light source is provided.In the present embodiment, backlight module 100 is to adopt the direct-light type LED backlight technology.On the light source module 110 in the backlight module 100, cooling mechanism can be set directly, heat pipe etc. for example is to solve heat dissipation problem.Embodiment is described as described above for backlight module 100 other structures, does not repeat them here.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.Modification of making according to spirit of the present invention and principle and equalization are provided with and all are contained in the claims scope.
Claims (20)
1, a kind of backlight modular structure is characterized in that, described backlight modular structure comprises:
One housing has a medial surface, a lateral surface and a plurality of first perforate;
One reflector plate is arranged on the described medial surface, has a plurality of second perforates of described relatively a plurality of first perforates on the described reflector plate; And
One light source module has a plurality of light sources, and wherein said light source module is arranged on the described lateral surface, and described a plurality of light sources pass described a plurality of first perforate and described a plurality of second perforate respectively.
2, backlight modular structure as claimed in claim 1 is characterized in that, described housing has more a back wall, and described medial surface and described lateral surface are the corresponding two sides that is formed at described back wall respectively.
3, backlight modular structure as claimed in claim 1 is characterized in that, described backlight module more comprises a plurality of blooming pieces, and be arranged in parallel with described reflector plate, and described blooming piece is between described reflector plate and liquid crystal panel.
4, backlight modular structure as claimed in claim 1 is characterized in that, each described light source is to pass each described first perforate and described second perforate respectively singlely.
5, backlight modular structure as claimed in claim 4 is characterized in that, the section shape that each described light source is parallel to described housing is corresponding with each described first hole shape.
6, backlight modular structure as claimed in claim 1 is characterized in that, described light source module is to be embedded described a plurality of light source by a circuit substrate to be constituted, and described circuit substrate is to be arranged at outside the lateral surface of described housing.
7, backlight modular structure as claimed in claim 6 is characterized in that, the upper surface of described circuit substrate is not exposed in described a plurality of first perforate.
8, backlight modular structure as claimed in claim 1 is characterized in that, more comprises a cooling mechanism, is located on the another side of the described relatively a plurality of light sources of described light source module.
9, backlight modular structure as claimed in claim 8 is characterized in that, described cooling mechanism comprises fin, radiating tube or thermal column.
10, backlight modular structure as claimed in claim 1 is characterized in that, described light source module is a light-emitting diode (LED) module, and described a plurality of light sources then are a plurality of LED sources.
11, a kind of display unit is characterized in that, described display unit comprises:
One liquid crystal panel;
One framework; And
One backlight module is located in the described framework and is arranged at described liquid crystal panel below, comprises:
One housing has a medial surface, a lateral surface and a plurality of first perforate;
One reflector plate is arranged on the described medial surface, has a plurality of second perforates of described relatively a plurality of first perforates on the described reflector plate; And
One light source module has a plurality of light sources, and wherein said light source module is arranged on the described lateral surface of described housing, and described a plurality of light sources pass described a plurality of first perforate and second perforate respectively,
Wherein by described framework and described housing described backlight module, described reflector plate and described liquid crystal panel are coated on wherein, described framework coats described liquid crystal panel, and described housing coats described backlight module and described reflector plate.
12, display unit as claimed in claim 11 is characterized in that, described housing has more a back wall, and described medial surface and described lateral surface are the corresponding two sides that is formed at described back wall respectively.
13, display unit as claimed in claim 11 is characterized in that, described backlight module more comprises a plurality of blooming pieces, and be arranged in parallel with described reflector plate, and described blooming piece is between described reflector plate and liquid crystal panel.
14, display unit as claimed in claim 11 is characterized in that, each described light source is to pass each described first perforate and described second perforate respectively singlely.
15, display unit as claimed in claim 14 is characterized in that, the section shape that each described light source is parallel to described housing is corresponding with each described first hole shape.
16, display unit as claimed in claim 11 is characterized in that, described light source module is to be embedded described a plurality of light source by a circuit substrate to be constituted, and described circuit substrate is to be arranged at outside the lateral surface of described housing.
17, display unit as claimed in claim 16 is characterized in that, the upper surface of described circuit substrate is not exposed in described a plurality of first perforate.
18, display unit as claimed in claim 11 is characterized in that, more comprises a cooling mechanism, is located on the another side of the described relatively a plurality of light sources of described light source module.
19, display unit as claimed in claim 18 is characterized in that, described cooling mechanism comprises fin, radiating tube or thermal column.
20, display unit as claimed in claim 11 is characterized in that, described light source module is a light-emitting diode (LED) module, and described a plurality of light sources then are a plurality of LED sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178768A CN100591978C (en) | 2008-12-01 | 2008-12-01 | Back light module structure and its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178768A CN100591978C (en) | 2008-12-01 | 2008-12-01 | Back light module structure and its display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418917A CN101418917A (en) | 2009-04-29 |
| CN100591978C true CN100591978C (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810178768A Active CN100591978C (en) | 2008-12-01 | 2008-12-01 | Back light module structure and its display device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148387A (en) * | 2010-02-12 | 2013-06-12 | 安德瑞国际有限公司 | LED (light emitting diode) luminaire |
| CN103062636A (en) * | 2011-10-19 | 2013-04-24 | 苏州益而益光电有限公司 | Light-emitting diode (LED) bulb and reflector cup thereof |
| CN103244840A (en) * | 2012-02-08 | 2013-08-14 | 东莞万士达液晶显示器有限公司 | Polarized light source assembly |
| CN102620204B (en) * | 2012-03-27 | 2015-05-20 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device comprising same |
| US9104068B2 (en) | 2012-03-27 | 2015-08-11 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
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2008
- 2008-12-01 CN CN200810178768A patent/CN100591978C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101418917A (en) | 2009-04-29 |
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