CN202274352U - Light source device and liquid crystal display - Google Patents
Light source device and liquid crystal display Download PDFInfo
- Publication number
- CN202274352U CN202274352U CN2011203380983U CN201120338098U CN202274352U CN 202274352 U CN202274352 U CN 202274352U CN 2011203380983 U CN2011203380983 U CN 2011203380983U CN 201120338098 U CN201120338098 U CN 201120338098U CN 202274352 U CN202274352 U CN 202274352U
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- Prior art keywords
- light
- emitting diode
- substrate
- backboard
- supply apparatus
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- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model discloses a light source device, which comprises a back plate and at least one light-emitting diode module, wherein the back plate comprises a bottom plate and a plurality of side plates connected to the edge of the bottom plate; the light-emitting diode module comprises a substrate and at least one light-emitting diode; the substrate is provided with a first surface and a second surface which is opposite to the first surface; the substrate is welded or fused on the inner side surface of at least one of the side plates towards the side plate through the second surface; and the light-emitting diode is arranged on the first surface of the substrate. The back plate can be used for dispersing heat energy generated by the light-emitting diode, so that an additional radiating assembly is not required to be arranged for the light source device. Meanwhile, the utility model further provides a liquid crystal display comprising the light source device.
Description
Technical field
The utility model relates to a kind of light supply apparatus and LCD, particularly a kind of with light emitting diode as light emitting source and improve the light supply apparatus and the LCD of radiating effect.
Background technology
Light emitting diode (Light Emitting Diode; LED) have that power consumption is lower, colour gamut is wide and an advantage such as life of product is long; Therefore light emitting diode has been applied to the multiple technologies field, wherein is one of important application as a Backlight For Liquid Crystal Display Panels.Yet, the problem that the heat radiation of light emitting diode need solve for the industry utmost point always.
Existing backlight module is light-emitting diode light bar to be utilized locked assemblies such as screw or bolt be fixed on the radiating subassembly, through with thermal energy conduction to the radiating subassembly that light emitting diode produced, with the temperature of effective reduction light emitting diode.Yet, light-emitting diode light bar maybe when running because of the temperature expansion bending that raises, only make between light-emitting diode light bar and the radiating subassembly locked assembly form contact on the sealed position, cause radiating efficiency to reduce.In addition, the substrate of lamp bar need be reserved locking position, and it is big and increase manufacturing cost to cause circuit to dispose comparatively complicacy and substrate area.In addition, the light-emitting diode light bar locking is assembled to LCD again on radiating subassembly, so will increase amount of parts and number of assembling steps, also causes cost effectively to reduce.
In sum, how that light-emitting diode light bar is smooth in radiating subassembly and to reduce component number be the target that the present utmost point need be made great efforts.
The utility model content
The utility model provides a kind of light supply apparatus and LCD, its be with light-emitting diode (LED) module welding or welding on the backboard inner surface of LCD, make the light-emitting diode (LED) module can be smooth in backboard.Backboard is as a radiating subassembly, and the heat energy that light emitting diode is produced can conduct to backboard and dissipate.Therefore light supply apparatus of the utility model and LCD need not the extra radiating subassembly that is provided with and can reduce luminous diode temperature, more and then reduce number of components and parts.
The light supply apparatus of the utility model one embodiment is a backlight that is used to provide a LCD.Light supply apparatus comprises a backboard and at least one light-emitting diode (LED) module.Backboard comprises a base plate and a plurality of side plate that is connected in bottom edge.Light-emitting diode (LED) module comprises a substrate and at least one light emitting diode.Substrate has a first surface and an opposing second surface, and substrate through second surface towards side plate welding or welding on one of them inner side surfaces of side plates.Light emitting diode then is arranged on the first surface of substrate.
The LCD of another embodiment of the utility model comprises a light supply apparatus, a front baffle and a panel module.Light supply apparatus comprises a backboard and at least one light-emitting diode (LED) module.Backboard comprises a base plate and a plurality of side plate that is connected in bottom edge.Light-emitting diode (LED) module comprises a substrate and at least one light emitting diode.Substrate has a first surface and an opposing second surface, and substrate through second surface towards side plate welding or welding on one of them inner side surfaces of side plates.Light emitting diode then is arranged on the first surface of substrate.Front baffle and backboard are formed a framework, and framework has an accommodation space.Panel module then is arranged in the accommodation space and in a bright dipping side of light-emitting diode (LED) module.
Below be described with reference to the accompanying drawings through specific embodiment, when the purpose that is easier to understand the utility model, technology contents, characteristics and the effect reached thereof.
Description of drawings
Fig. 1 is a stereogram, shows the light supply apparatus of the utility model one embodiment;
Fig. 2 is a profile, shows the cross-section structure of the embodiment of Fig. 1 along the AA line;
Fig. 3 is a profile, shows the cross-section structure of the light supply apparatus of another embodiment of the utility model;
Fig. 4 is a profile, shows the cross-section structure of the light supply apparatus of the another embodiment of the utility model;
Fig. 5 is a profile, shows the cross-section structure of the LCD of the utility model one embodiment.
Wherein:
10 light supply apparatuses
11 backboards
111 base plates
112 side plates
113 grooves
12 light-emitting diode (LED) modules
121 substrates
1211 first surfaces
1212 second surfaces
122 light emitting diodes
123 bonding lands
13 leaded light components
131 incidence surfaces
132 exiting surfaces
14 diffusion sheets
20 front baffles
21 perforates
22 accommodation spaces
30 panel modules
The specific embodiment
The light supply apparatus of the utility model is a backlight that is used to provide a LCD.Please with reference to Fig. 1 and Fig. 2, the light supply apparatus 10 of an embodiment of the utility model comprises a backboard 11 and at least one light-emitting diode (LED) module 12.Backboard 11 is made up of a base plate 111 and 112 of a plurality of side plates, and its latus inframedium 112 is connected in the edge of base plate 111.For example, backboard 11 can be formed in one or combined by a plurality of workpiece.12 of light-emitting diode (LED) modules comprise a substrate 121 and at least one light emitting diode 122.Substrate 121 has a first surface 1211 and an opposing second surface 1212, and substrate 121 is to be arranged on the inner surface of side plate 112 through the direction of second surface 1212 towards side plate 112.122 of light emitting diodes are arranged on the first surface 1211 of substrate 121.It is understandable that light-emitting diode (LED) module 12 comprises a circuit layer (not indicating among the figure), it is arranged on the first surface 1211 of substrate 121.Light emitting diode 122 and circuit layer are electrically connected, and light emitting diode 122 can be obtained external power source and accept control so that a side-light type back light to be provided via circuit layer.In the present embodiment, light-emitting diode (LED) module 12 is arranged on two opposing sideplates 112, but is not limited thereto, and according to different designs, light-emitting diode (LED) module 12 is arranged on one of them or a plurality of side plate 112 also can provide required side-light type back light.
In one embodiment, light-emitting diode (LED) module 12 is the inner surfaces that are connected to side plate 112 through the mode of welding.For example, the material of the substrate 121 of light-emitting diode (LED) module 12 can be metal material, and preferably, the material of substrate 121 can be highly heat-conductive material, for example aluminium, copper etc.And the material of backboard 11 can be galvanized steel plain sheet, lagging steel plate, steel plate with baking paint or above combination, utilizes this moment solder technology such as laser welding or spot welding can between the side plate 112 of substrate 121 and backboard 11, form bonding land 123, and is as shown in Figure 2.Bonding land 123 can be continuous welding bead, makes the light-emitting diode (LED) module 12 can be smooth on the side plate 112 of backboard 11.Perhaps, bonding land 123 can be the comparatively intensive solder joint of spacing, and the substrate 121 of light-emitting diode (LED) module 12 is unlikely to because of the expansion bending when accumulation high temperature.Be noted that welding is meant the fusion of material own and is engaged with each other that a welding material perhaps also capable of using must must side plate 112 be bonded together light-emitting diode (LED) module 12 with backboard 11 by substrate 121.
In one embodiment, light-emitting diode (LED) module 12 also can be connected to the inner surface of side plate 112 through fusing mode.For example, as shown in Figure 3, produce the phenomenon of fusion between the second surface 1212 of the substrate 121 of light-emitting diode (LED) module 12 and the side plate 112 of backboard 11 and be engaged with each other, form a bonding land 123.Utilize the colloid engage both compared to prior art, the welding mode of the utility model has preferable bond strength, and can avoid bonding land 123 to separate because of the high-temperature deterioration.According to aforementioned structure, the heat energy that light emitting diode 122 is produced dissipates to air or other heat conduction medium after can conducting to backboard 11 via the contact area of bonding land 123 and/or other substrate 121 and backboard 11.Therefore, backboard 11 can be used as the radiating subassembly of light emitting diode 122.In addition, backboard 11 also can carry the required functional unit of LCD.
Please with reference to Fig. 4, in one embodiment, backboard 11 ground side plates 112 can have a groove 113.Light-emitting diode (LED) module 12 can be arranged in the groove 113 of side plate 112 and weld.According to this structure, between the substrate 121 of light-emitting diode (LED) module 12 and the side plate 112 of backboard 11 bigger contact area is arranged, and then promote heat conduction speed with the further radiating effect that improves light emitting diode 122.
Please with reference to Fig. 2 to Fig. 4, in one embodiment, the light supply apparatus of the utility model also comprises a leaded light component 13.Leaded light component 13 has an incidence surface 131 and an exiting surface 132, and leaded light component 13 is provided with along the bright dipping side direction of incidence surface 131 towards light-emitting diode (LED) module 12.Leaded light component 13 can be directed to the light source that light-emitting diode (LED) module 12 is sent the panel module of LCD more efficiently, to be lifted out optical efficiency.In addition, the light supply apparatus of the utility model can comprise a diffusion sheet 14, and it is arranged on exiting surface 132 1 sides of leaded light component 13.The light source that diffusion sheet 14 can make light-emitting diode (LED) module 12 sent is comparatively even.
Please with reference to Fig. 5, the LCD of an embodiment of the utility model comprises a light supply apparatus 10, a front baffle 20 and a panel module 30.Light supply apparatus 10 is used to provide a backlight, and its detailed structure repeats no more at this as previously mentioned.Front baffle 20 has a perforate 21, and forms a framework with the backboard 11 of light supply apparatus 10.This framework has an accommodation space 22, is used to hold the required functional unit of LCD running.In one embodiment, front baffle 20 can be formed in one or combined by a plurality of workpiece.Panel module 30 is arranged in the accommodation space 22 of framework, and is arranged on the bright dipping side of light-emitting diode (LED) module 12.The light that light-emitting diode (LED) module 12 is sent illuminates and penetration surface plate module 30, lets the user watch 30 of panel modules to present image via the perforate 21 of front baffle 20.
In one embodiment, light supply apparatus 10 comprises a leaded light component 13, and it has an incidence surface 131 and an exiting surface 132.Leaded light component 13 along incidence surface 131 towards a bright dipping side direction of light-emitting diode (LED) module 12 and along exiting surface 132 towards panel module 30 direction settings; So that the light source that light-emitting diode (LED) module 12 is sent can be directed to panel module 30 more efficiently, and then be lifted out optical efficiency.Preferably, light supply apparatus 10 comprises a diffusion sheet 14, and it is arranged between the exiting surface 132 and panel module 30 of leaded light component 13, so that the light source that light-emitting diode (LED) module 12 is sent is preferable evenly.Be noted that; But the LCD that has common knowledge technology personnel knowledge capital utility model in the affiliated technical field comprises the functional unit that other running is required; For example panel driving assembly, power management, controller etc., this is the prior art means, repeats no more at this.
The LCD of the utility model can comprise an appearance component, and it is coated on the outside of front baffle 20 and backboard 11.Appearance component is generally plastic material.Perhaps, in one embodiment, see through suitable design, front baffle 20 and backboard 11 can be directly as LCD ground appearance component.So can further reduce amount of parts, and preferable radiating effect is arranged.
Comprehensively above-mentioned, light supply apparatus of the utility model and LCD directly weld or are fused to the inner surface of the backboard of LCD with light-emitting diode (LED) module, make the light-emitting diode (LED) module can be smooth in backboard.Can be considered heat energy that the backboard of a radiating subassembly produces light emitting diode can conduct to backboard and dissipate.Therefore light supply apparatus of the utility model and LCD need not the extra radiating subassembly that is provided with and can reduce luminous diode temperature, more and then reduce number of components and parts and simplify number of assembling steps.In addition, utilize welding or fusion techniques to engage the substrate surface area that light-emitting diode (LED) module and backboard can avoid taking light-emitting diode (LED) module as far as possible, but so less substrate and the circuit layout of light-emitting diode (LED) module usable floor area comparatively simple.
Above specific embodiment only is technological thought and the characteristics for explanation the utility model; Its purpose makes the personage who has the knack of this skill can understand the content of the utility model and is implementing according to this; When can not be in order to limit the claim of the utility model; The equalization of promptly doing according to the spirit that the utility model provided generally changes or modifies, and must be encompassed in the claim of the utility model.
Claims (13)
1. light supply apparatus is used to provide a backlight of a LCD, it is characterized in that said light supply apparatus comprises:
One backboard comprises a base plate and a plurality of side plate, and said backboard is connected in the edge of said base plate; And
At least one light-emitting diode (LED) module comprises:
One substrate has a first surface and an opposing second surface, said substrate through said second surface towards the welding of said side plate or welding on one of them inner side surfaces of side plates; And
At least one light emitting diode is arranged on the said first surface of said substrate.
2. light supply apparatus according to claim 1 is characterized in that, said light-emitting diode (LED) module also comprises:
One circuit layer is arranged on the said first surface of said substrate and with said light emitting diode and electrically connects.
3. light supply apparatus according to claim 1 is characterized in that, the material of said substrate is a metal.
4. light supply apparatus according to claim 1 is characterized in that said side plate has a groove, and said light-emitting diode (LED) module is arranged in the said groove.
5. light supply apparatus according to claim 1 is characterized in that, said backboard is formed in one or is combined by a plurality of workpiece.
6. light supply apparatus according to claim 1 is characterized in that, said substrate and said backboard are to weld together through a welding material.
7. light supply apparatus according to claim 1 is characterized in that, said substrate and said backboard are to weld together through spot welding or continuous pass.
8. light supply apparatus according to claim 1 also comprises:
One leaded light component has an incidence surface and an exiting surface, and said leaded light component is provided with along the bright dipping side direction of said incidence surface towards said light-emitting diode (LED) module;
One diffusion sheet is arranged on said exiting surface one side of said leaded light component.
9. a LCD is characterized in that, comprising:
One light supply apparatus is used to provide a backlight, and said light supply apparatus comprises:
One backboard comprises a base plate and a plurality of side plate, and said backboard is connected in the edge of said base plate; And
At least one light-emitting diode (LED) module comprises:
One substrate has a first surface and an opposing second surface, said substrate through said second surface towards the welding of said side plate or welding on one of them inner side surfaces of side plates; And
At least one light emitting diode is arranged on the said first surface of said substrate;
One front baffle is formed a framework with said backboard, and said framework has an accommodation space; And
One panel module is arranged in the said accommodation space and in a bright dipping side of said light-emitting diode (LED) module.
10. LCD according to claim 9 is characterized in that, said front baffle is formed in one or is combined by a plurality of workpiece.
11. LCD according to claim 9 is characterized in that, said backboard is formed in one or is combined by a plurality of workpiece.
12. LCD according to claim 9 is characterized in that, said substrate and this backboard are to weld together through a welding material.
13. LCD according to claim 9 is characterized in that, said substrate and said backboard are to weld together through spot welding or continuous pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203380983U CN202274352U (en) | 2011-09-09 | 2011-09-09 | Light source device and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203380983U CN202274352U (en) | 2011-09-09 | 2011-09-09 | Light source device and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274352U true CN202274352U (en) | 2012-06-13 |
Family
ID=46194712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203380983U Expired - Fee Related CN202274352U (en) | 2011-09-09 | 2011-09-09 | Light source device and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013071573A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Back frame of flat-panel display device and backlight system |
| CN110170761A (en) * | 2019-04-26 | 2019-08-27 | 中山市百斯拓灯饰有限公司 | A kind of lamp bracket and its manufacturing method of hiding solder joint |
-
2011
- 2011-09-09 CN CN2011203380983U patent/CN202274352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013071573A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Back frame of flat-panel display device and backlight system |
| CN110170761A (en) * | 2019-04-26 | 2019-08-27 | 中山市百斯拓灯饰有限公司 | A kind of lamp bracket and its manufacturing method of hiding solder joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20180909 |