CN202392611U - High-power LED (light-emitting diode) and LED backlight module - Google Patents
High-power LED (light-emitting diode) and LED backlight module Download PDFInfo
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- CN202392611U CN202392611U CN2011205300926U CN201120530092U CN202392611U CN 202392611 U CN202392611 U CN 202392611U CN 2011205300926 U CN2011205300926 U CN 2011205300926U CN 201120530092 U CN201120530092 U CN 201120530092U CN 202392611 U CN202392611 U CN 202392611U
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Abstract
The utility model discloses a high-power LED (light-emitting diode) and an LED backlight module, wherein the high-power LED comprises an LED lamp and an LED lamp lens, the LED lamp lens comprises a scattering portion for weakening normal luminous intensity of the high-power LED, and the scattering portion in a disc or an oval shape is arranged right above the LED lamp. Since the scattering portion is arranged in the LED lamp lens, the normal luminous intensity of the high-power LED can be effectively weakened, and an overall light field distribution curve of an LED source of the high-power LED in the LED backlight module is optimized.
Description
Technical field
The utility model relates to the LED technical field, relates in particular to a kind of great power LED and LED-backlit module.
Background technology
In the prior art, down straight aphototropism mode set is to utilize CCFl or LED lamp source after the energising through the reflection of bottom reflection cover, the light that CCFl or LED lamp source the are sent direct projection that makes progress; The diffusion that this light that makes progress direct projection passes through diffuser plate again; With light scattering atomizing, thereby make this light be uniformly distributed in the surface of module backlight, utilize this principle from CCFl or LED lamp source; Just can convert spot light and line source into area source; And area source passes through the effect of diffusion sheet and other diaphragms again, can further improve the brightness and the uniformity of this area source, and it is distributed in the light-emitting zone with the suitable brightness and the uniformity.Along with the LED broad application, the application that high-power LED lamp replaces the module backlight of conventional light source also becomes more and more widely.
Yet; When high-power LED lamp is applied to down straight aphototropism mode set at present; Because the power of LED lamp is bigger, therefore the negligible amounts of its use need carry out the secondary optics design to the light that this high-power LED lamp sent; The compound mode that promptly adopts the LED lamp to add LED lamp lens changes the distribution of light intensity distribution curve of high-powered LED lamp, to realize the purpose of module uniformly light-emitting backlight.Because the normal direction luminous intensity of high-powered LED lamp is very big; Prior art is to weaken its normal direction luminous intensity through the shape of optimizing LED lamp lens; Yet; Shape through optimizing LED lamp lens to be realizing weakening the mode of LED lamp normal direction luminous intensity, and it is difficult to realize be attenuated to the normal direction luminous intensity of LED lamp consistent with luminous intensity around this LED lamp, thereby is difficult to the purpose of this high-power LED light source integral light curve of field distribution in the realization optimization LED-backlit module.
The utility model content
The utility model provides a kind of great power LED, is intended to effectively weaken the normal direction luminous intensity of great power LED, to realize optimizing the purpose of this high-power LED light source integral light curve of field distribution in the LED-backlit module.
In order to achieve the above object; The utility model proposes a kind of great power LED; Comprise LED lamp and LED lamp lens; Said LED lamp lens comprise the scattering part that weakens said great power LED normal direction luminous intensity, said scattering part be located at said LED lamp directly over, said scattering part is disc-shape or oval plate shape.
Preferably, said scattering part is located in the corresponding zone of said LED lamp normal direction light both sides 45 degree.
Preferably, the periphery of said scattering part is non-scattering part, and said scattering part and non-scattering part are structure as a whole.
The utility model also proposes a kind of LED-backlit module; This LED-backlit module comprises great power LED; Said great power LED comprises LED lamp and LED lamp lens; Said LED lamp lens comprise that one is used to weaken the scattering part of said great power LED normal direction luminous intensity, said scattering part be located at said LED lamp directly over, said scattering part is disc-shape or oval plate shape.
Preferably, said scattering part is located in the corresponding zone of said LED lamp normal direction light both sides 45 degree.
Preferably, the periphery of said scattering part is non-scattering part, and said scattering part and non-scattering part are structure as a whole.
Great power LED and LED-backlit module that the utility model proposes through in LED lamp lens, a scattering part being set, have weakened the normal direction luminous intensity of this great power LED effectively, have optimized the integral light curve of field distribution of high-power LED light source in the LED-backlit module.
Description of drawings
Fig. 1 is the front section view of the utility model great power LED preferred embodiment;
Fig. 2 is the vertical view of the utility model great power LED preferred embodiment.
The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Further specify the technical scheme of the utility model below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See figures.1.and.2, Fig. 1 is the front section view of the utility model great power LED preferred embodiment, and Fig. 2 is the vertical view of the utility model great power LED preferred embodiment.The utility model great power LED comprises LED lamp 1 and LED lamp lens 2; Wherein, The centermost of LED lamp lens 2 is provided with a sunk area 3; The utility model great power LED the sunk area 3 of LED lamp lens 2 be provided with one be used to weaken great power LED normal direction luminous intensity scattering part 21, also promptly this scattering part 21 be located at LED lamp 1 directly over.Because the light field of LED lamp 1 is generally circular light field or is oval-shaped light field; Therefore; In order better to realize weakening the purpose of great power LED normal direction luminous intensity; This scattering part 21 is designed to disc-shape perhaps is the oval plate shape, and the scattering part 21 in the utility model preferred embodiment is a disc-shape.
Concrete, scattering part 21 is located in the pairing LED lamp lens of LED lamp 1 normal direction light both sides, 45 degree 2 zones, and the periphery of scattering part 21 is non-scattering part, and scattering part 21 is structure as a whole with non-scattering part.
Scattering part 21 comprises matrix and scattering particles, and scattering particles is used for LED lamp 1 normal direction light is carried out optics diffuse scattering and diffuse reflection.Its mesostroma is water white polymethyl methacrylate (being called for short PMMA) or Merlon (being called for short PC), and scattering particles is silica or the Powdered scattering particles of titanium dioxide white.
Among the utility model embodiment; When the normal direction light of LED lamp 1 gets into the scattering part 21 in the LED lamp lens 2; The normal direction light of LED lamp 1 is except the catadioptric effect that receives LED lamp lens 2 curved surfaces own; Also receive the diffuse scattering and the diffuse reflection effect of silica in the scattering part 21 or the Powdered scattering particles of titanium dioxide white, make that the normal direction light of LED lamp 1 is weakened through LED lamp lens 2 backs, thereby optimized the integral light curve of field distribution of this high-power LED light source.
The power of LED lamp is 1W-3W among the utility model embodiment, and the Powdered scattering particles of silica or titanium dioxide white accounts for the 0.1%-1% of scattering part 21 matrix in the scattering part 21.
The utility model embodiment is through double-shot moulding technology commonly used, in the pairing LED lamp lens area of LED lamp normal direction light both sides 45 degree, mixes certain density have optics diffuse scattering and irreflexive silica or the Powdered scattering particles of titanium dioxide white.When the normal direction light of LED lamp gets into should the zone time; Diffuse scattering and diffuse reflection have taken place in light under the effect of these scattering particles; Thereby improved should the zone in the scattering property of light; Thereby weakened the normal direction luminous intensity of LED lamp, realized optimizing the purpose of the integral light curve of field distribution of this high-power LED light source in the LED-backlit module.And the scattering property of light strengthens along with the rising of the concentration of interpolation scattering particles in should the zone; Therefore, can be through doped region and this great power LED of the autotelic control of doping content luminous intensity in different directions of scattering particles in the control LED lamp lens.
The scattering part of LED lamp lens and the employed matrix of non-scattering part are commaterial among the utility model embodiment; Be water white PMMA or PC; Difference is; The non-scattering part of LED lamp lens only contains above-mentioned matrix, and the scattering part of LED lamp lens had both comprised above-mentioned matrix, also comprised the Powdered scattering particles of a spot of silica or titanium dioxide white.
When adopting double-shot moulding technology injection moulding LED lamp lens; PMMA or PC are placed in the barrel of double coloured plastic injection machine; The PMMA or the PC that will contain 0.1～1% silica or the Powdered scattering particles of titanium dioxide white place in another barrel of double coloured plastic injection machine; Through making double-colored rotary die; The size and the area of scattering part in the control LED lamp lens in the making of mold cavity go out the part through the double coloured plastic injection machine single injection-molded and contain the vaporific LED lamp lens of white, and this white is vaporific to be scattering part recited above.
The beneficial effect of the utility model is: the utility model is owing to be provided with a scattering part in the pairing LED lamp lens area of LED lamp normal direction light both sides 45 degree; Weaken the normal direction luminous intensity of this great power LED effectively, optimized the integral light curve of field distribution of high-power LED light source in the LED-backlit module.Again because the utility model is the integral light curve of field distribution of optimizing high-power LED light source in the LED-backlit module through the optical characteristics that changes the material of LED lamp lens own; Therefore; When processing LED lamp lens; Reduced requirement, simultaneously also reduced the assembly difficulty of LED lamp lens and LED lamp, thereby reduced the difficulty that great power LED is applied to module backlight its appearance curve precision.
The utility model also provides a kind of LED-backlit module; This LED-backlit module comprises great power LED, and its great power LED comprises LED lamp and LED lamp lens, wherein; The structure of LED lamp lens repeats no more with reference to the structure of LED lamp lens in the said great power LED of top embodiment here.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (6)
1. great power LED; Comprise LED lamp and LED lamp lens, it is characterized in that said LED lamp lens comprise the scattering part that weakens said great power LED normal direction luminous intensity; Said scattering part be located at said LED lamp directly over, said scattering part is disc-shape or oval plate shape.
2. great power LED according to claim 1 is characterized in that, said scattering part is located in the corresponding zone of said LED lamp normal direction light both sides 45 degree.
3. great power LED according to claim 1 and 2 is characterized in that, the periphery of said scattering part is non-scattering part, and said scattering part and non-scattering part are structure as a whole.
4. LED-backlit module; Comprise great power LED; Said great power LED comprises LED lamp and LED lamp lens, it is characterized in that, said LED lamp lens comprise that one is used to weaken the scattering part of said great power LED normal direction luminous intensity; Said scattering part be located at said LED lamp directly over, said scattering part is disc-shape or oval plate shape.
5. LED-backlit module according to claim 4 is characterized in that, said scattering part is located in the corresponding zone of said LED lamp normal direction light both sides 45 degree.
6. according to claim 4 or 5 described LED-backlit modules, it is characterized in that the periphery of said scattering part is non-scattering part, said scattering part and non-scattering part are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205300926U CN202392611U (en) | 2011-12-16 | 2011-12-16 | High-power LED (light-emitting diode) and LED backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205300926U CN202392611U (en) | 2011-12-16 | 2011-12-16 | High-power LED (light-emitting diode) and LED backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392611U true CN202392611U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205300926U Expired - Lifetime CN202392611U (en) | 2011-12-16 | 2011-12-16 | High-power LED (light-emitting diode) and LED backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392611U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557491A (en) * | 2013-08-22 | 2014-02-05 | 深圳市日上光电股份有限公司 | Led lens |
| CN104344344A (en) * | 2013-08-06 | 2015-02-11 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source device using same |
| WO2017113249A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Backlight module |
| WO2017113254A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Direct-type backlight module |
| WO2017113253A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Background module for liquid crystal display |
| CN110720011A (en) * | 2017-06-13 | 2020-01-21 | 阿莫善斯有限公司 | Lens cover and LED lighting device with lens cover |
-
2011
- 2011-12-16 CN CN2011205300926U patent/CN202392611U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344344A (en) * | 2013-08-06 | 2015-02-11 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source device using same |
| CN103557491A (en) * | 2013-08-22 | 2014-02-05 | 深圳市日上光电股份有限公司 | Led lens |
| WO2017113249A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Backlight module |
| WO2017113254A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Direct-type backlight module |
| WO2017113253A1 (en) * | 2015-12-30 | 2017-07-06 | 周肇梅 | Background module for liquid crystal display |
| CN110720011A (en) * | 2017-06-13 | 2020-01-21 | 阿莫善斯有限公司 | Lens cover and LED lighting device with lens cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |