CN103035175B - Small-pixel outdoor LED (Light-emitting Diode) display module - Google Patents
Small-pixel outdoor LED (Light-emitting Diode) display module Download PDFInfo
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- CN103035175B CN103035175B CN201210554788.1A CN201210554788A CN103035175B CN 103035175 B CN103035175 B CN 103035175B CN 201210554788 A CN201210554788 A CN 201210554788A CN 103035175 B CN103035175 B CN 103035175B
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- display module
- led display
- outdoor led
- drain pan
- face shield
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Abstract
The invention discloses a small-pixel outdoor LED (Light-emitting Diode) display module which comprises a bottom shell, a PCB (Printed Circuit Board) and a face guard in a back-to-front direction in sequence, wherein a plurality of LEDs arranged in front of the PCB are arranged between the PCB and the face guard. The small-pixel outdoor LED display module further comprises a wind dispelling hole and a wind-dispelling-hole column, wherein one end of the wind-dispelling-hole column extends from a rear surface of the face guard and is communicated to the back face of the bottom shell straightly after penetrating through the PCB and the bottom shell, and the wind dispelling hole is formed in the wind-dispelling-hole column and is used to communicate spaces before and behind the small-pixel outdoor LED display module; the back face of the face guard is provided with a plurality of lampshade cavities matched and bucked with the LEDs; and a place between the bottom shell and the back section of the wind-dispelling-hole column is sealed by a seal member. According to the invention, the glue is injected from the back, the face guard and the seal member guarantee the waterproof performances of the front and the back respectively, and the wind dispelling hole can be used to dispel wind smoothly so as to reduce wind resistance, that the pixel distance can be less than 7.2mm. The small-pixel outdoor LED display module can be widely applied to setting engineering of outdoor LED display screens.
Description
Technical field
The present invention relates to a kind of outdoor LED display screen, particularly form the display module of described outdoor LED display screen.
Background technology
Outdoor LED display screen is many as advertisement or publicity use, it component units comprise LED display module.LED display module has front and back, before be light-emitting area, light-emitting area arranged in arrays has multiple LED, and each LED is a pixel of display module, and the installing space of LED is exactly a pixel distance between two.If pixel is apart from less, the display quality of LED display module and even display screen is then higher, and image is more clear meticulous.But, relatively large outdoor LED display screen must solve the excessive problem of windward side area, so some LED display module just have employed the mode arranging dispelling wind hole between pixel distance now, avoids the direct impact of wind-force.With reference to Fig. 1, traditional LED display module comprises face shield 3 ' and drain pan 5 ', face shield 3 ' is provided with and appears through hole, drain pan 5 ' towards direction be above provided with penetrating, end direct reach described in appear the dispelling wind hole post 12 ' of through hole, the central through hole of Kong Zhu is dispelling wind hole 2 ', accompany between face shield 3 ' and drain pan 5 ' and establish the PCB4 ' of LED1 ' (PCB is the circuit board being welded with the electronic devices and components such as IC, connector), face shield 3 ' covers the dead ahead at LED1 '.Like this, no matter wind is from blowing above or below, and air-flow can be evacuated from dispelling wind hole 2 ', reduces the impact that wind-force causes.But owing to having had more the such structure in dispelling wind hole 2 ', LED display module must face anti-water problem again.Usually, engineering adopts encapsulating, formed solidify silica gel mode to realize sealing structure waterproof.Particularly, first LED1 ' is arranged away from dispelling wind hole 2 ', then glue filling opening is outputed at face shield 3 ' near the place in dispelling wind hole 2 ', by machine, glue is circulated between face shield 3 ' and PCB4 ' from glue filling opening place again, after silica gel solidifies, having to of just existence due to dispelling wind hole 2 ' can being caused appears at hole on face shield 3 ', PCB4 ' and gap in shutoff.Between LED1 and drain pan, need to leave certain space like this carry out encapsulating.But obviously, due to the technique of this preposition encapsulating, making the spacing between LED and LED have to widen (having the thickness of drain pan 5 ' to also have encapsulating thickness), causing the pixel of outdoor LED display module apart from increasing, the pixel distance of more than 8mm can only be realized, affect the quality of display image.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of small pixel distance outdoor LED display module of pixel apart from the technical matters cannot doing less solving outdoor LED display module.
The solution that the present invention solves its technical matters is:
A kind of small pixel is apart from outdoor LED display module, its from below forwardly direction comprise drain pan, PCB, face shield successively, multiple LED be arranged in before PCB is provided with between PCB and face shield, the present invention also comprises dispelling wind hole and dispelling wind hole post, post one end, described dispelling wind hole extends out from the rear surface of face shield, elongated end passes straight through to after drain pan after through PCB and drain pan, and dispelling wind hole is located in the post of dispelling wind hole, and described small pixel is communicated with apart from the leading space of outdoor LED display module with rear space; Lampshade chamber that multiple and described LED coordinates, that fasten LED is provided with after face shield; Sealed by seal between the back segment of drain pan and dispelling wind hole post.
As the further improvement of technique scheme, the described seal sealing up the back segment of drain pan and dispelling wind hole post comprises silica gel ring and filling perforation silica gel block.
As the further improvement of technique scheme, the edge of described face shield extends and encases the edge of drain pan in direction rearwards, is sealed between the edge of face shield and the edge of drain pan by seal.
As the further improvement of technique scheme, the described seal sealing up the edge of face shield and the edge of drain pan comprises silica gel strip and fills out limit silica gel block.
As the further improvement of technique scheme, the rear surface of face shield is provided with the screw hole column of protrusion, and drain pan connects by carrying out heel cover with the screw that screw hole column screws up and pushes down PCB.
As the further improvement of technique scheme, the rear surface of drain pan is provided with the counter sink of inserting for described screw, and counter sink is sealed by seal.
As the further improvement of technique scheme, the described seal sealing up counter sink is for filling out counter sink silica gel block.
As the further improvement of technique scheme, described face shield is transparent PC component.
As the further improvement of technique scheme, the xsect in described dispelling wind hole is flat long rectangle.
As the further improvement of technique scheme, the spacing between two adjacent LEDs is less than 7.2mm.
The invention has the beneficial effects as follows: dispelling wind hole of the present invention post extends from the rear surface of face shield, lampshade chamber is located at after face shield, this makes face shield need not arrange glue filling opening more separately, but itself namely block completely, wrapped LED, therefore can ensure that before display module while water resistance, reduce the spacing between LED and LED; And sealed by seal between the back segment of drain pan and dispelling wind hole post, ensure that the water resistance below of display module; Wind-force successfully can be evacuated in dispelling wind hole, decelerating wind resistance.The present invention changes traditional preposition process for filling colloid into, novel, simple and reliable for structure, can be widely used in arranging in engineering of outdoor LED display screen.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, instead of whole embodiment, and those skilled in the art, under the prerequisite not paying creative work, can also obtain other design proposals and accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure cross-sectional schematic of traditional outdoor LED display module;
Fig. 2 is structure cross-sectional schematic of the present invention;
Fig. 3 is front-view schematic diagram of the present invention, causes figure unclear in order to avoid LED is overstocked, has only intercepted the part LED at close coboundary position and the pattern in dispelling wind hole in figure.
Embodiment
Clear, complete description is carried out, to understand object of the present invention, characteristic sum effect fully below with reference to embodiment and the accompanying drawing technique effect to design of the present invention, concrete structure and generation.Obviously; described embodiment is a part of embodiment of the present invention, instead of whole embodiment, based on embodiments of the invention; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of protection of the invention.In addition, all connection/annexations mentioned in literary composition, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.
With reference to Fig. 2 ~ Fig. 3, a kind of small pixel is apart from outdoor LED display module, its from below forwardly direction comprise drain pan 5, PCB4, face shield 3 successively, multiple LED1 be arranged in before PCB4 is provided with between PCB4 and face shield 3, the present invention also comprises dispelling wind hole 2 and dispelling wind hole post 12, post 12 one end, described dispelling wind hole extends out from the rear surface of face shield 3, elongated end passes straight through to after drain pan 5 after through PCB4 and drain pan 5, dispelling wind hole 2 is located in dispelling wind hole post 12, and described small pixel is communicated with apart from the leading space of outdoor LED display module with rear space; Lampshade chamber that multiple and described LED1 coordinates, that fasten LED1 is provided with after face shield 3; Sealed by seal between the back segment of drain pan 5 and dispelling wind hole post 12.
Drain pan 5 can adopt aluminium alloy compression casting, can strengthen the radiating effect of PCB and LED group like this.
Be further used as preferred embodiment, the described drain pan 5 that seals up comprises silica gel ring 11 and filling perforation silica gel block 10 with the seal of the back segment of dispelling wind hole post 12.
Be further used as preferred embodiment, the edge of described face shield 3 extends and encases the edge of drain pan 5 in direction rearwards, is sealed between the edge of face shield 3 and the edge of drain pan 5 by seal.
Be further used as preferred embodiment, the seal at the described edge sealing up face shield 3 and the edge of drain pan 5 comprises silica gel strip 6 and fills out limit silica gel block 7.
Be further used as preferred embodiment, the rear surface of face shield 3 is provided with the screw hole column of protrusion, and drain pan 5 connects by carrying out heel cover 3 with the screw 9 that screw hole column screws up and pushes down PCB4.
Be further used as preferred embodiment, the rear surface of drain pan 5 is provided with the counter sink of inserting for described screw 9, and counter sink is sealed by seal.
Be further used as preferred embodiment, the described seal sealing up counter sink is for filling out counter sink silica gel block 8.
Be further used as preferred embodiment, described face shield 3 is transparent PC component.Further, face shield 3 adopts uv blocking PC to make, can effective waterproof.
Be further used as preferred embodiment, the xsect in described dispelling wind hole 2 is flat long rectangle.
Be further used as preferred embodiment, the spacing between two adjacent LEDs 1 is less than 7.2mm.
Installation steps of the present invention are as follows: lain in by face shield on platform, and its rear surface upward; The PCB lamp being provided with LED is contained in face shield face-down, simultaneously to good lampshade chamber and mounting hole; Drain pan is placed on after PCB, with screw, three, front and back part is fixed together; Silica gel strip, silica gel ring are inserted corresponding installation site, and silica gel strip seals the edge juncture position of face shield and drain pan, and silica gel ring tentatively seals the binding site of the back segment of drain pan and dispelling wind hole post; Finally in the gap of all parts, fill with silica gel, thus filling out limit silica gel block, filling perforation silica gel block, fill out the seal members such as counter sink silica gel block described in being formed, thoroughly seal the behind of drain pan.After completing above operation, the present invention is penetrating before and after getting final product, and air-flow can freely be come in and gone out from the two ends in dispelling wind hole swimmingly, and can not cause excessive Wind impact to display module; Meanwhile, owing to changing the direction of filling with silica gel, lamp face is made completely by the disposable responsible covering of face shield and sealing, eliminate glue filling opening above, therefore LED is to each other apart from doing, and is even less than 7.2mm less, reduce pixel distance, improve the pixel of display module.
More than that better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (10)
1. a small pixel is apart from outdoor LED display module, its from below forwardly direction comprise drain pan (5) successively, PCB(4), face shield (3), PCB(4) and be provided with between face shield (3) be multiplely arranged in PCB(4) before LED(1), it is characterized in that: it also comprises dispelling wind hole (2) and dispelling wind hole post (12), post (12) one end, described dispelling wind hole extends out from the rear surface of face shield (3), elongated end is through PCB(4) and drain pan (5) after pass straight through to after drain pan (5), dispelling wind hole (2) is located in dispelling wind hole post (12), described small pixel is communicated with apart from the leading space of outdoor LED display module with rear space, face shield (3) be below provided with multiple and described LED(1) coordinate, fasten LED(1) lampshade chamber, sealed by seal between the back segment in drain pan (5) and dispelling wind hole post (12).
2. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: the described drain pan (5) that seals up comprises silica gel ring (11) and filling perforation silica gel block (10) with the seal of the back segment in dispelling wind hole post (12).
3. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: the edge of described face shield (3) extends and encases the edge of drain pan (5) in direction rearwards, is sealed between the edge of face shield (3) and the edge of drain pan (5) by seal.
4. small pixel according to claim 3 is apart from outdoor LED display module, it is characterized in that: the seal at the described edge sealing up face shield (3) and the edge of drain pan (5) comprises silica gel strip (6) and fills out limit silica gel block (7).
5. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: the rear surface of face shield (3) is provided with the screw hole column of protrusion, drain pan (5) connects by carrying out heel cover (3) with the screw (9) that screw hole column screws up and pushes down PCB(4).
6. small pixel according to claim 5 is apart from outdoor LED display module, it is characterized in that: the rear surface of drain pan (5) is provided with the counter sink of inserting for described screw (9), and counter sink is sealed by seal.
7. small pixel according to claim 6 is apart from outdoor LED display module, it is characterized in that: the described seal sealing up counter sink is for filling out counter sink silica gel block (8).
8. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: described face shield (3) is transparent PC component.
9. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: the xsect of described dispelling wind hole (2) is flat long rectangle.
10. small pixel according to claim 1 is apart from outdoor LED display module, it is characterized in that: the spacing between two adjacent LEDs (1) is less than 7.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554788.1A CN103035175B (en) | 2012-12-19 | 2012-12-19 | Small-pixel outdoor LED (Light-emitting Diode) display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554788.1A CN103035175B (en) | 2012-12-19 | 2012-12-19 | Small-pixel outdoor LED (Light-emitting Diode) display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103035175A CN103035175A (en) | 2013-04-10 |
| CN103035175B true CN103035175B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210554788.1A Expired - Fee Related CN103035175B (en) | 2012-12-19 | 2012-12-19 | Small-pixel outdoor LED (Light-emitting Diode) display module |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8974077B2 (en) | 2012-07-30 | 2015-03-10 | Ultravision Technologies, Llc | Heat sink for LED light source |
| US9195281B2 (en) | 2013-12-31 | 2015-11-24 | Ultravision Technologies, Llc | System and method for a modular multi-panel display |
| CN109166468A (en) * | 2018-09-07 | 2019-01-08 | 深圳市光祥科技股份有限公司 | LED transparent screen mould group and LED transparent screen |
| CN109147590A (en) * | 2018-11-16 | 2019-01-04 | 深圳市光祥科技股份有限公司 | LED display |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655196U (en) * | 2010-03-26 | 2010-11-24 | 深圳市洲明科技股份有限公司 | Outdoor waterproof module and display screen |
| KR101078110B1 (en) * | 2010-04-01 | 2011-10-28 | 손혁준 | 16×24 LED matrix display module and LED display board using the same |
| CN201838275U (en) * | 2010-10-12 | 2011-05-18 | 深圳市洲明科技股份有限公司 | LED (light-emitting diode) display module and LED display screen |
| CN201868044U (en) * | 2010-10-27 | 2011-06-15 | 深圳市洲明科技股份有限公司 | Outdoor LED (Light-Emitting Diode) display module |
| CN202216002U (en) * | 2011-08-15 | 2012-05-09 | 深圳市联建光电股份有限公司 | Shutter type grating module and LED module group |
| CN203013171U (en) * | 2012-12-19 | 2013-06-19 | 深圳市联诚丰光电科技有限公司 | Small-pixel-distance outdoor light-emitting diode (LED) display module |
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Granted publication date: 20150218 Termination date: 20161219 |