CN103886815A - Outdoor LED display screen - Google Patents
Outdoor LED display screen Download PDFInfo
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- CN103886815A CN103886815A CN201410096507.1A CN201410096507A CN103886815A CN 103886815 A CN103886815 A CN 103886815A CN 201410096507 A CN201410096507 A CN 201410096507A CN 103886815 A CN103886815 A CN 103886815A
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- led
- display screen
- led display
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- face shield
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Abstract
The invention discloses an outdoor LED display screen which comprises a box and a surface cover installed at the front end of the box. LED arrays composed of a plurality of LED light emitting units distributed in a matrix mode are arranged on the surface cover, and part or all of the outer surface of the surface cover is provided with a steady persistence fluorescent powder layer which can be excited by light emitted by the LED light emitting units. After the display screen is turned off at night, due to the fact that fluorescent powder of the steady persistence fluorescent powder layer is excited by the LED light emitting units before the display screen is turned off to emit light, after the LED light emitting units are extinguished, the environment where the LED display screen is located is dark, correspondingly, patterns or characters can still be displayed on the screen for a certain period of time to be read, appreciated and viewed by passing persons on streets and roads, and the effects of advertisements, bulletins and decoration are continuously achieved.
Description
Technical field
The present invention relates to a kind of LED application technology, especially a kind of outdoor LED display screen.
Background technology
Outdoor LED display screen, because it has power saving, convenience, the advantage such as reliable, is widely used in open air, outdoor.The use of LED display at present, when to the late into the night time, because of people passing on street, road less, thereby after can being arranged in certain time, be the work of this LED display of Close All, to save electricity consumption, avoid the waste of supporting, until rework again the next morning, realize its main function.
Just because of this, after LED display is closed at night, this place becomes a black place, without any effect, is the equal of the alternative wasting of resources.Therefore, how can further make full use of this display screen, become an important topic.
Summary of the invention
In order to solve the above problems, the object of the present invention is to provide a kind of outdoor LED display screen that further enriches function, improves result of use.
The present invention solves the technical scheme that its problem adopts:
A kind of outdoor LED display screen, comprise casing, be arranged on the face shield of casing front end, the LED array being made up of the some LED luminescence units that are matrix arrangements on face shield, the outside surface of face shield is local or be all provided with the long-afterglow fluorescent bisque that the light that sent by aforementioned LED luminescence unit excites.
Preferably, on described face shield, have at LED luminescence unit upside the brim of a hat contiguous with this LED luminescence unit.
Preferably, described long-afterglow fluorescent bisque is arranged at the brim of a hat outside surface of face shield.Further, described long-afterglow fluorescent bisque is arranged at the downside of the brim of a hat, and the luminous bottom that can be irradiated to the brim of a hat of LED, fills energy to it.Fluorescent powder is applied to the bottom of the brim of a hat, can strengthen the exposure intensity of blue led to it, also can reduce the impact on fluorescent powder of sunshine and surround lighting, in order to avoid noctilucence is shown and is disturbed out of controlly, picture causes confusion.
Preferably, described long-afterglow fluorescent bisque can also be the panel outer surface that is arranged at face shield, excites as long as its position can be subject to the light of LED.
Preferably, described long-afterglow fluorescent bisque is arranged on the outside surface local location of face shield, and forms word and/or pattern modelling, has both saved phosphor material powder, also can be directly luminous by the long-afterglow fluorescent bisque on this local location, being used as to decorate, advertisement.
Preferably, each LED luminescence unit is RGB luminescence unit, is made up of respectively red-light LED, green light LED and blue-ray LED.Further, long-afterglow fluorescent bisque is adjacent to sent light to this long-afterglow fluorescent bisque the strongest LED place of effect that is stimulated.Such as, the fluorescent powder of this long-afterglow fluorescent bisque is subject to the priming effect optimum of blue light, and this long-afterglow fluorescent bisque is adjacent to blue-ray LED, can reduce the use of long-afterglow fluorescent bisque, reduces costs; Certainly, can also be applied to the display screen red and fluorescent powder that green priming effect is strong, as long as be provided with fluorescent powder on the position exceeding, place the strongest LED of priming effect in its corresponding position, as red and green.
Preferably, red-light LED, green light LED and the blue-ray LED of each LED luminescence unit has the common the brim of a hat or the brim of a hat independently separately, when having in the situation of the brim of a hat independently, can only on the LED adjacent place of fluorescent powder priming effect the best, fluorescent powder be set, other the brim of a hat does not arrange, and can effectively reduce costs.
The invention has the beneficial effects as follows: in LED display, use out of doors long-afterglow fluorescent bisque, so that close at night after display screen, it is luminous because the fluorescent powder of long-afterglow fluorescent bisque was subject to exciting of LED luminescence unit before display screen extinguishes, after LED luminescence unit extinguishes, because the general residing environment of LED display is more black, therefore, accordingly, the pattern or the word that still remain with in appearance certain time length of screen, appreciate and read and watch for the people who passes by street, road, continue to play the effect of advertisement, bulletin, decoration.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the front view of structure embodiment mono-of the present invention;
Fig. 2 is the sectional structure schematic diagram of Fig. 1;
Fig. 3 is the A portion enlarged drawing of Fig. 2
Fig. 4 is the front view of structure embodiment bis-of the present invention;
Fig. 5 is the front view of structure embodiment tri-of the present invention;
Fig. 6 is the front view of structure embodiment tetra-of the present invention;
Fig. 7 is the sectional structure schematic diagram of Fig. 6.
Embodiment
First; introduce the structure of outdoor LED display screen required for protection in patented claim of the present invention; with reference to figure 1-Fig. 7; the various embodiments of outdoor LED display screen of the present invention; comprise casing 1, be arranged on the face shield 10 of casing 1 front end; the LED array being made up of the some LED luminescence units 20 that are matrix arrangements on face shield 10, the outside surface of face shield 10 is provided with the long-afterglow fluorescent bisque 30 that the light that sent by aforementioned LED luminescence unit 20 excites.
This long-afterglow fluorescent bisque 30 can be arranged on the local location on OFP surface, also can be arranged on whole positions on OFP surface, the set height of this long-afterglow fluorescent bisque needs to work as after LED luminescence unit 20 lights, its light can be mapped on long-afterglow fluorescent bisque it being excited, and can form font, pattern etc. between this long-afterglow fluorescent bisque.Certainly, wherein, be arranged on long-afterglow fluorescent bisque that on the local location on OFP surface, to form the embodiment of font or pattern the most preferred.
Structure embodiment mono-, with reference to Fig. 1, Fig. 2 and Fig. 3, as follows:
Outdoor LED display screen, comprise casing 1, there is face shield 10 in casing 1 front, on the panel 12 of face shield 10, have mounting hole, form LED luminescence unit 20 by red-light LED 21, green light LED 22 and blue-ray LED 23 and be arranged in casing with multiple, luminescence unit forms LED array, in the front end mounting hole of its red-light LED 21, green light LED 22 and blue-ray LED 23, stretches out, and there is the brim of a hat 14 top of every row LED luminescence unit of LED array.Long-afterglow fluorescent bisque 30 of the present invention is arranged on panel 12 and the bottom of the brim of a hat 14, the pattern forming for as example in figure be " LED " font, and, preferably, if fluorescent powder is subject to blue-light excited effect maximum, the position of blue-ray LED 23 is the most preferred with the design of the close the brim of a hat 14 that is provided with long-afterglow fluorescent bisque.In addition, for large-scale LED display curtain, can be directly to lay in the bottom of the brim of a hat 14, see that from afar foot is also with integrant pattern performance, and on panel, do not lay also and be fine.
Structure embodiment bis-, with reference to Fig. 4, basic identical with embodiment mono-in this embodiment, its difference, is that each LED luminescence unit has a corresponding the brim of a hat.
Structure embodiment tri-, with reference to Fig. 5, basic identical with embodiment bis-in this embodiment, its difference, is that being shaped as of every group of independence the brim of a hat is curved, and red-light LED 21, green light LED 22 and blue-ray LED 23 is common mounting hole.
Structure embodiment tetra-, with reference to Fig. 6,7, in this embodiment, be that with the difference of embodiment mono-each red-light LED 21, green light LED 22 and blue-ray LED 23 have respectively the independently the brim of a hat, correspondingly, long-afterglow fluorescent bisque only can be arranged on the contiguous the brim of a hat of LED of its priming effect optimum.
The structure that is more than LED display of the present invention illustrates, and can also be various combinations and variation, and other be equal to embodiment, such as the form that forms cup at panel surface realizes, narrate no longer one by one at this.
Further illustrate the long-afterglow fluorescent bisque of how realizing in said structure below, comprise the selection of fluorescent powder wherein and how to be formed in LED display.
Wherein, the choice criteria of fluorescent powder, is mainly relatively stable with chemical property, and it is important indicator that after time and after-glow brightness meet standard.
Fluorescent powder is given an example: alkaline earth aluminate system fluorescent powder, and excitation wavelength range is 200nm-480nm, transmitting main peak is 520nm ± 10nm, can be excited by LED ultraviolet chip and LED blue chip.
And how on display screen, to be provided with above-mentioned long-afterglow fluorescent bisque, can adopt following implementation method, or other implementation methods.
Method one, tackifier are bonding
First fluorescent powder being blended directly in tackifier by a certain percentage, is 8 tackifier such as adopting weight ratio, and the fluorescent powder that weight ratio is 2 mixes, and sticks on the panel or the brim of a hat of display screen; Also can adopt the film or the thing piece etc. that are loaded with fluorescent powder to stick with glue agent and be bonded on display screen, such as polyacrylate adhesive is bonding.
Method two, japanning
A certain proportion of fluorescent powder is mixed in to (such as fluorine carbon varnish) in varnish, after mixing, can makes it to be attached to display screen by the mode of spraying or roller coating; Or after adhesioluminescence body otherwise, then to whole luminophor and panel attachment area paint one deck varnish, protect.
Method three, injection mo(u)lding
If the panel of display screen, the brim of a hat are plastic material (as PE), another method can be mixed in fluorescent powder the material for moulding panel or member, directly on panel, is injection molded into the crown top of burner or makes member secondary installing on panel.
Certainly, the invention is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present invention with essentially identical means, all should belong to protection scope of the present invention.
Claims (9)
1. an outdoor LED display screen, comprise casing, be arranged on the face shield of casing front end, the LED array being made up of the some LED luminescence units that are matrix arrangements on face shield, is characterized in that: the outside surface of face shield is local or be all provided with the long-afterglow fluorescent bisque that the light that sent by aforementioned LED luminescence unit excites.
2. a kind of outdoor LED display screen according to claim 1, is characterized in that: on described face shield, have at LED luminescence unit upside the brim of a hat contiguous with this LED luminescence unit.
3. a kind of outdoor LED display screen according to claim 2, is characterized in that: described long-afterglow fluorescent bisque is arranged at the brim of a hat outside surface of face shield.
4. a kind of outdoor LED display screen according to claim 3, is characterized in that: described long-afterglow fluorescent bisque is arranged at the downside of the brim of a hat.
5. a kind of outdoor LED display screen according to claim 1, is characterized in that: described long-afterglow fluorescent bisque is arranged at the panel outer surface of face shield.
6. a kind of outdoor LED display screen according to claim 1, is characterized in that: described long-afterglow fluorescent bisque is arranged on the outside surface local location of face shield, and forms word and/or pattern modelling.
7. according to a kind of outdoor LED display screen described in claim 1,2,3,4,5 or 6, it is characterized in that: each LED luminescence unit is RGB luminescence unit, is made up of respectively red-light LED, green light LED and blue-ray LED.
8. a kind of outdoor LED display screen according to claim 7, is characterized in that: long-afterglow fluorescent bisque is adjacent to sent light to this long-afterglow fluorescent bisque the strongest LED place of effect that is stimulated.
9. according to a kind of outdoor LED display screen described in claim 7 or 8, it is characterized in that: red-light LED, green light LED and the blue-ray LED of each LED luminescence unit has the common the brim of a hat or the brim of a hat independently separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096507.1A CN103886815A (en) | 2014-03-14 | 2014-03-14 | Outdoor LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410096507.1A CN103886815A (en) | 2014-03-14 | 2014-03-14 | Outdoor LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103886815A true CN103886815A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410096507.1A Pending CN103886815A (en) | 2014-03-14 | 2014-03-14 | Outdoor LED display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252818A (en) * | 2014-09-11 | 2014-12-31 | 苏州合欣美电子科技有限公司 | Environmental outdoor LED fluorescent display screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206773Y (en) * | 2008-04-30 | 2009-03-11 | 深圳市洲磊电子有限公司 | LED display screen module shield panel |
| CN202940237U (en) * | 2012-04-06 | 2013-05-15 | 隆达电子股份有限公司 | Long-persistence light emitting diode packaging structure |
| CN203055364U (en) * | 2013-01-12 | 2013-07-10 | 曹淑花 | Novel low-carbon energy-saving environment-friendly light-emitting diode (LED) display screen |
| WO2014036705A1 (en) * | 2012-09-06 | 2014-03-13 | Liu Lehua | Led lamp using glass lamp cover with internally coated remote fluorescent powder |
| CN203910189U (en) * | 2014-03-14 | 2014-10-29 | 深圳市联腾科技有限公司 | Outdoor LED (Light Emitting Diode) display screen |
-
2014
- 2014-03-14 CN CN201410096507.1A patent/CN103886815A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206773Y (en) * | 2008-04-30 | 2009-03-11 | 深圳市洲磊电子有限公司 | LED display screen module shield panel |
| CN202940237U (en) * | 2012-04-06 | 2013-05-15 | 隆达电子股份有限公司 | Long-persistence light emitting diode packaging structure |
| WO2014036705A1 (en) * | 2012-09-06 | 2014-03-13 | Liu Lehua | Led lamp using glass lamp cover with internally coated remote fluorescent powder |
| CN203055364U (en) * | 2013-01-12 | 2013-07-10 | 曹淑花 | Novel low-carbon energy-saving environment-friendly light-emitting diode (LED) display screen |
| CN203910189U (en) * | 2014-03-14 | 2014-10-29 | 深圳市联腾科技有限公司 | Outdoor LED (Light Emitting Diode) display screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252818A (en) * | 2014-09-11 | 2014-12-31 | 苏州合欣美电子科技有限公司 | Environmental outdoor LED fluorescent display screen |
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Application publication date: 20140625 |