CN102831839A - LED (Light Emitting Diode) display screen - Google Patents
LED (Light Emitting Diode) display screen Download PDFInfo
- Publication number
- CN102831839A CN102831839A CN 201210331657 CN201210331657A CN102831839A CN 102831839 A CN102831839 A CN 102831839A CN 201210331657 CN201210331657 CN 201210331657 CN 201210331657 A CN201210331657 A CN 201210331657A CN 102831839 A CN102831839 A CN 102831839A
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- led
- printed circuit
- circuit board
- light
- board
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Abstract
The invention provides an LED (Light Emitting Diode) display screen comprising an LED, a printed circuit board and an LED driving chip, wherein an LED lamp bulb is welded on the printed circuit board, the front face of the printed circuit board is locked with a light-transmitting board, a plurality of hemispherical grooves are arranged on one face, locked with the printed circuit board, of the light-transmitting board, the other face of the light-transmitting board is provided with a fluorescent layer, the hemispherical grooves on the light-transmitting board are respectively corresponding to the LED lamp bulb of the printed circuit board, the hemispherical grooves are inverted on the LED lamp bulb, and the light-transmitting board is in glue sealing connection with the edge of the printed circuit board. The LED display screen is reasonable and simple in structure, good in radiating effect and reliable in waterproof performance. The LED driving chip is used for controlling the current constant value provided for the LED, the driving is stable, and the twinkling of the LED is eliminated. The printed circuit board is an aluminum base printed circuit board, and is small in thermal resistance, good in heat dissipation and high in mechanical strength. The LED screen display is soft in irradiation without glaring, energy-saving and power-saving, thereby efficiently reducing the particle effect and improving the definite power. The LED screen display is suitable for indoor and outdoor use, and is long in service life.
Description
Technical field
The present invention relates to a kind of LED display structure, especially a kind of good heat dissipation, quality better, viewing angle is wide, viewing distance is far away and the outdoor LED display screen of long service life.
Background technology
LED is a kind of semiconductor solid luminescence device, when two ends add forward voltage, causes photo emissions and produces light.LED receives widely with luminescence efficiency height, long service life, characteristics safe and reliable and environmental protection and energy saving and paying attention to.A kind of important means that LED display is propagated as information; Become the sign of urban information modernization construction; Constantly perfect along with socioeconomic continuous progress and LED display technique; People will more and more go deep into the understanding of LED display, and its application is more and more wider, and indoor or outdoor all have a use.Existing LED display generally is to accomplish assembling through a plurality of module connecting methods, and after encapsulating was all carried out in the front of each module, a plurality of then modules spliced on a casing, are equipped with supply unit simultaneously, thereby are assemblied to form LED display.The reverse side of this module can be exposed to the outside, does not have waterproof measure, is not suitable for outdoor use.Can both use in order to reach indoor and open air, be employed in the method for infusion epoxy resin under the lamp base of LED, still, the epoxy time is long, makes the production cycle prolong, the perfusion troublesome poeration, and yield rate is low, the cost increase; When receiving solar light irradiation with energising work, producing heat can not distribute timely and effectively, and the LED device temperature raises, and is prone to cause Embedding Material aging.The work under hot environment of LED device can cause the acceleration light decay, causes the LED device failure, shortens LED device serviceable life.
Summary of the invention
The object of the invention is exactly the defective that exists to above-mentioned prior art, provides a kind of rational in infrastructure simple, good heat dissipation effect, long service life, the LED display that is applicable to the indoor and outdoor use of dependable performance.
The objective of the invention is to realize like this; LED display comprises LED, printed circuit board (PCB) and LED chip for driving, and the bead weld of LED lamp is connected on the said printed circuit board (PCB); The front of the printed circuit board (PCB) light-passing board that has been interlocked; The one side that fastens with printed circuit board (PCB) on the said light-passing board has several semi-spherical grooves, and the another side of light-passing board has fluorescence coating, and the semi-spherical grooves on the light-passing board LED lamp pearl with printed circuit board (PCB) respectively is corresponding; Semi-spherical grooves tips upside down on the LED lamp pearl, and light-passing board and printed circuit board edge adopt glue to be tightly connected.
The substrate of said printed circuit board (PCB) is an aluminum plate.
Said light-passing board is an acrylic folder fiber light-passing board.
The present invention is rational in infrastructure simple, good heat dissipation effect, and water resistance is reliable.Adopt the LED chip for driving to control the electric current constant current value that offers said LED, guarantee the stabilized driving of LED, eliminate the scintillation of LED.Printed circuit board (PCB) is the aluminium base printed circuit board (PCB), and thermal resistance is little, nonmagnetic, good heat dissipation, physical strength height, heat-proof combustion-resistant, dimensional stability are good.Light is through light-passing board and fluorescence coating, and is luminous soft not dazzling, optically focused more, and energy saving, light effectively reduces the particle effect through transmission and refraction, promotes clearness.Be applicable to the indoor and outdoor use, long service life.
Description of drawings
Figure l is a structural representation of the present invention.
Fig. 2 is a printed circuit board arrangement synoptic diagram of the present invention.
Fig. 3 is a light-passing board structural representation of the present invention.
Among the figure: 1 printed circuit board (PCB), 2LED lamp pearl, 3 light-passing boards, 4 semi-spherical grooves.
Embodiment
LED display is made up of LED lamp pearl, printed circuit board (PCB), LED chip for driving and light-passing board, and the bead weld of LED lamp is connected on the said printed circuit board (PCB); The front of the printed circuit board (PCB) light-passing board that has been interlocked; The one side that fastens with printed circuit board (PCB) on the light-passing board has several semi-spherical grooves, and the another side of light-passing board has fluorescence coating, and the semi-spherical grooves on the light-passing board LED lamp pearl with printed circuit board (PCB) respectively is corresponding; Semi-spherical grooves tips upside down on the LED lamp pearl, and light-passing board and printed circuit board edge adopt glue to be tightly connected.Adopt the LED chip for driving to control the electric current constant current value that offers said LED, guarantee the stabilized driving of LED, eliminate the scintillation of LED.Printed circuit board (PCB) is the aluminium base printed circuit board (PCB).Thermal resistance is little, nonmagnetic, good heat dissipation, physical strength height, heat-proof combustion-resistant, dimensional stability are good.Light-passing board adopts acrylic folder fiber light-passing board, and light is through light-passing board and fluorescence coating, and is luminous soft not dazzling, optically focused more, and energy saving, light effectively reduces the particle effect through transmission and refraction, promotes clearness.Be applicable to the indoor and outdoor use, long service life.
Claims (3)
1.LED display screen comprises LED, printed circuit board (PCB) and LED chip for driving, the bead weld of LED lamp is connected on the said printed circuit board (PCB); The front of the printed circuit board (PCB) light-passing board that has been interlocked; The one side that fastens with printed circuit board (PCB) on the said light-passing board has several semi-spherical grooves, and the another side of light-passing board has fluorescence coating, and the semi-spherical grooves on the light-passing board LED lamp pearl with printed circuit board (PCB) respectively is corresponding; Semi-spherical grooves tips upside down on the LED lamp pearl, and light-passing board and printed circuit board edge adopt glue to be tightly connected.
2. LED display according to claim 1 is characterized in that, the substrate of said printed circuit board (PCB) is an aluminum plate.
3. LED display according to claim 1 is characterized in that, said light-passing board is an acrylic folder fiber light-passing board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210331657 CN102831839A (en) | 2012-09-10 | 2012-09-10 | LED (Light Emitting Diode) display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210331657 CN102831839A (en) | 2012-09-10 | 2012-09-10 | LED (Light Emitting Diode) display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102831839A true CN102831839A (en) | 2012-12-19 |
Family
ID=47334942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210331657 Pending CN102831839A (en) | 2012-09-10 | 2012-09-10 | LED (Light Emitting Diode) display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102831839A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839492A (en) * | 2013-12-18 | 2014-06-04 | 同济大学 | Optical medium layer and media interface structure system based on optical medium layer |
| CN103927944A (en) * | 2013-01-16 | 2014-07-16 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) display screen |
| CN113724612A (en) * | 2021-08-31 | 2021-11-30 | 宁波瑞元天科新能源材料有限公司 | Solar LED energy-saving screen |
-
2012
- 2012-09-10 CN CN 201210331657 patent/CN102831839A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927944A (en) * | 2013-01-16 | 2014-07-16 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) display screen |
| CN103839492A (en) * | 2013-12-18 | 2014-06-04 | 同济大学 | Optical medium layer and media interface structure system based on optical medium layer |
| CN103839492B (en) * | 2013-12-18 | 2016-07-20 | 同济大学 | Light dielectric layer and the media interface constructing system based on this light dielectric layer |
| CN113724612A (en) * | 2021-08-31 | 2021-11-30 | 宁波瑞元天科新能源材料有限公司 | Solar LED energy-saving screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |