CN203718635U - LED (light emitting diode) backlight direct-lighting type luminous source device - Google Patents
LED (light emitting diode) backlight direct-lighting type luminous source device Download PDFInfo
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- CN203718635U CN203718635U CN201420036451.6U CN201420036451U CN203718635U CN 203718635 U CN203718635 U CN 203718635U CN 201420036451 U CN201420036451 U CN 201420036451U CN 203718635 U CN203718635 U CN 203718635U
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- led
- light
- led lamp
- light emitting
- guiding pillar
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides an LED (light emitting diode) backlight direct-lighting type luminous source device, and relates to improvement of an LED backlight direct-lighting type luminous source device structure. The LED backlight direct-lighting type luminous source device is high in luminous efficiency and low in power consumption. The LED backlight direct-lighting type luminous source device comprises a semi-cylindrical light guiding column arranged transversely, and is characterized in that LED lamps are arranged at two ends of the inside of the light guiding column; a plurality of inwards semi-spherical projections are uniformly distributed on a rectangular surface of the bottom of the light guiding column; and a plurality of diamond-shaped surface lens structures are uniformly arranged on an arc-shaped surface of the light guiding column.
Description
Technical field
the utility model relates to the improvement of LED-backlit straight-down negative light emitting source apparatus structure.
Background technology
in electronics industry, backlight is a kind of form of illumination, is often used in LCD demonstration.Side-light type and straight-down negative difference are: side-light type is that light source irradiates from module side, and straight-down negative is light source upwards irradiation from module bottom surface.They are used to be increased in the computer monitor in low-light level environment, the brightness on liquid crystal screen.
traditional LCD is backlight, because adopt CCFL cathode fluorescent tube as its light source, lighting angle 360 degree, therefore need to be at a reflector with reflectivity properties of the outside increase of CCFL CCFL, so that the light that utilizes CCFL CCFL to send of larger efficiency.Present stage LED direct-type backlight is and directly LED lamp is fixed on to metallic plate or above glass fiber plate, then pcb board is kept flat on backboard, carries out arranging of a determining deviation; This setup, the light angle utilization rate less, light that LED light source sends is not high.
Summary of the invention
the utility model is exactly for the problems referred to above, provides a kind of luminous efficiency LED-backlit straight-down negative light emitting source apparatus high, low in energy consumption.
for achieving the above object, the utility model adopts following technical scheme, the utility model comprises the semicylinder light-guiding pillar of horizontally set, the inner two ends of its structural feature light-guiding pillar are provided with LED lamp, in the rectangular surfaces of light-guiding pillar bottom, be evenly distributed with a plurality ofly to inner hemispherical protuberances, on the curved surfaces of light-guiding pillar, be evenly arranged a plurality of diamond shaped surface lens arrangements.
as a kind of preferred version, light-guiding pillar described in the utility model adopts solid polymethyl methacrylate light-guiding pillar.
as another kind of preferred version, the substrate of LED lamp described in the utility model adopts MCPCB aluminium base.
secondly, LED lamp described in the utility model adopts the LED lamp of encapsulation 3535,3W.
in addition, the substrate of LED lamp described in the utility model is comprised of three ply board, is followed successively by from the bottom to top copper base, heat conductive insulating plate, copper foil circuit plate, the corresponding solder joint welding on the leg of LED lamp support and copper foil circuit plate.
the utility model beneficial effect.
the light part that the utility model LED lamp sends is shone to bottom surface hemispherical protuberances downwards along the direction of light-guiding pillar by light-guiding pillar, even action by hemispherical protuberances reflects light to light-guiding pillar surrounding, by the diamond shaped surface lens arrangement on light-guiding pillar curved surfaces, light is reflected to module cavity to surrounding again; Another part light directly reflects to module cavity by diamond shaped surface lens arrangement; Like this, increased the lighting angle of light, light source is evenly distributed in module cavity, has effectively improved luminous efficiency, has reduced power consumption.
Accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the utility model is described further.The utility model protection domain is not only confined to the statement of following content.
fig. 1 is the utility model structural representation.
fig. 2 is the utility model diamond shaped surface lens arrangement schematic diagram.
fig. 3 is the utility model hemispherical protuberances structural representation.
fig. 4 is the utility model LED lamp substrate structural representation.
in figure, 1 is that hemispherical protuberances, 2 is that rectangular surfaces, 3 is that curved surfaces, 4 is that LED lamp, 5 is that diamond shaped surface lens arrangement, 6 is that copper base, 7 is that heat conductive insulating plate, 8 is copper foil circuit plate.
The specific embodiment
as shown in the figure, the utility model comprises the semicylinder light-guiding pillar of horizontally set, the inner two ends of light-guiding pillar are provided with LED lamp 4, in light-guiding pillar bottom rectangular surfaces 2, be evenly distributed with a plurality ofly to inner hemispherical protuberances 1, on the curved surfaces 3 of light-guiding pillar, be evenly arranged a plurality of diamond shaped surface lens arrangements 5.
described hemispherical protuberances 1 can adopt laser engraving site to make.
described light-guiding pillar adopts solid polymethyl methacrylate light-guiding pillar.
the substrate of described LED lamp 4 adopts MCPCB aluminium base; Effective improving radiating effect.
described LED lamp 4 adopts the LED lamp of encapsulation 3535,3W.By test, consider the factors such as power consumption, illumination effect, adopting the LED lamp of encapsulation 3535,3W, can reduce in a large number the usage quantity of LED lamp 4, reducing cost of manufacture.
the substrate of described LED lamp 4 is comprised of three ply board, is followed successively by from the bottom to top copper base 6, heat conductive insulating plate 7, copper foil circuit plate 8, the corresponding solder joint welding on the leg of LED lamp 4 supports and copper foil circuit plate 8.This substrate good heat dissipation effect, simple in structure, cost is low.
be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (5)
1.
a kind of LED-backlit straight-down negative light emitting source apparatus, the semicylinder light-guiding pillar that comprises horizontally set, it is characterized in that the inner two ends of light-guiding pillar are provided with LED lamp (4), in light-guiding pillar bottom rectangular surfaces (2), be evenly distributed with a plurality ofly to inner hemispherical protuberances (1), on the curved surfaces of light-guiding pillar (3), be evenly arranged a plurality of diamond shaped surface lens arrangements (5).
2.
according to claim 1, a LED-backlit straight-down negative light emitting source apparatus, is characterized in that described light-guiding pillar adopts solid polymethyl methacrylate light-guiding pillar.
3.
according to claim 1, a LED-backlit straight-down negative light emitting source apparatus, is characterized in that the substrate of described LED lamp (4) adopts MCPCB aluminium base.
4.
according to claim 1, a LED-backlit straight-down negative light emitting source apparatus, is characterized in that described LED lamp (4) adopts the LED lamp of encapsulation 3535,3W.
5.
a kind of LED-backlit straight-down negative light emitting source apparatus according to claim 1, the substrate that it is characterized in that described LED lamp (4) is comprised of three ply board, be followed successively by from the bottom to top copper base (6), heat conductive insulating plate (7), copper foil circuit plate (8), the corresponding solder joint welding on the leg of LED lamp (4) support and copper foil circuit plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036451.6U CN203718635U (en) | 2014-01-21 | 2014-01-21 | LED (light emitting diode) backlight direct-lighting type luminous source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036451.6U CN203718635U (en) | 2014-01-21 | 2014-01-21 | LED (light emitting diode) backlight direct-lighting type luminous source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718635U true CN203718635U (en) | 2014-07-16 |
Family
ID=51157782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036451.6U Expired - Fee Related CN203718635U (en) | 2014-01-21 | 2014-01-21 | LED (light emitting diode) backlight direct-lighting type luminous source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565939A (en) * | 2015-01-04 | 2015-04-29 | 赵立地 | Straight down type LED (light emitting diode) panel light luminous source device |
| CN105065994A (en) * | 2015-08-12 | 2015-11-18 | 深圳创维－Rgb电子有限公司 | Lamp strip structure capable of forming rectangular and uniform luminous effect, backlight module and display device |
-
2014
- 2014-01-21 CN CN201420036451.6U patent/CN203718635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565939A (en) * | 2015-01-04 | 2015-04-29 | 赵立地 | Straight down type LED (light emitting diode) panel light luminous source device |
| CN105065994A (en) * | 2015-08-12 | 2015-11-18 | 深圳创维－Rgb电子有限公司 | Lamp strip structure capable of forming rectangular and uniform luminous effect, backlight module and display device |
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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: 20140716 Termination date: 20170121 |