CN103441209B - Outdoor display screen and LED packaging thereof - Google Patents
Outdoor display screen and LED packaging thereof Download PDFInfo
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- CN103441209B CN103441209B CN201310378976.8A CN201310378976A CN103441209B CN 103441209 B CN103441209 B CN 103441209B CN 201310378976 A CN201310378976 A CN 201310378976A CN 103441209 B CN103441209 B CN 103441209B
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Abstract
The invention discloses a kind of outdoor display screen and LED packaging, described outdoor display screen includes multiple LED packaging, described LED packaging includes: LED luminescence chip, the packaging body covering described LED luminescence chip and covering reflecting layer of exiting surface on the upside of described packaging body, described reflecting layer will be incident to light thereon from described packaging body and reflex to exiting surface on the downside of described packaging body.By the way, the present invention can effectively promote the light intensity of viewable portion, thus reaches display applications end energy-saving effect, and can reduce light pollution.
Description
Technical field
The present invention relates to light sources technical field, particularly relate to a kind of outdoor display screen and LED encapsulation
Device.
Background technology
Along with the fast development of display screen technology, outdoor display screen has been seen everywhere.Outdoor display
Screen generally comprises multiple LED pixel composition of ranks arrangement, and the core component of LED pixel is i.e.
For LED packaging.
LED packaging generally comprises base, the LED chip being fixed on base and covering
The oval packaging body (being commonly called as lamp bead) of LED chip.Generally, outdoor display screen is for being suspended on
Using on certain altitude, packaging body used is oval, and packaging body normal luminous intensity is bright spot,
Direction, normal direction both sides light is symmetrical, as it is shown in figure 1, its light type curve is as indicated with 2.By
Typically having a certain altitude in hanging place, beholder needs to look up, in the case of being and looking up,
On the basis of normal plane, the light of the latter half is operational light, and top half is most
Actual being employed of light, most energy wastes, and easily causes light pollution simultaneously.
In this case, asymmetric light type LED packaging becomes a kind of demand.
Have the LED packaging of newly-designed asymmetrical light type at present, it is achieved mode be to pass through
Support, mould bar are done particular design, mates special technique, thus reach asymmetric light type.So
And this scheme is high to the precise requirements of bracket mould, mould bar, in technique to the accuracy of die bond also
Being a test, meanwhile, if wherein change occurs in certain material, its light distribution effect will may require that
Redesign, and after mould bar has designed, finished size is to change, and this scheme has again
Uniqueness.And this scheme first half light splitting is compressed, and its energy is transformed into the latter half.
The energy that preferably at most can reach 20%-30% converts.Accordingly, it would be desirable to one has energy conversion also
And the method for oval packaging body profile need not be changed be wasted and easily cause light solving luminous energy
The problem polluted.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of outdoor display screen and LED wrapper
Part, it is possible to effectively promote the light of viewable portion on the premise of the structure not changing LED packaging appearance
By force, reach display applications end energy-saving effect, and light pollution can be reduced.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide one
LED packaging, including: LED luminescence chip, the encapsulation that covers described LED luminescence chip
Body and covering are in the reflecting layer of described packaging body side exiting surface, and described reflecting layer will be from described envelope
Dress body is incident to light thereon and reflexes to described packaging body opposite side exiting surface, wherein, described envelope
Dress body is elliptical shape, and described reflecting layer is positioned at half part of described oval packaging body axis of symmetry side
On the exiting surface of outside；Described reflecting layer is formed by coating technique.
Wherein, the reflectance in described reflecting layer is 60%～100%.
Wherein, described LED packaging is inline package.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide one
Outdoor display screen, including multiple LED packagings, described LED packaging includes: LED
Luminescence chip, the packaging body covering described LED luminescence chip and covering are on the upside of described packaging body
The reflecting layer of exiting surface, described reflecting layer will be incident to light thereon from described packaging body and reflex to
Exiting surface on the downside of described packaging body, wherein, described packaging body is elliptical shape, position, described reflecting layer
On half portion outboard exiting surface of described oval packaging body axis of symmetry side；Described reflecting layer is logical
Cross what coating technique was formed.
Wherein, the reflectance in described reflecting layer is 60%～100%.
Wherein, described LED packaging is inline package.
The invention has the beneficial effects as follows: be different from the situation of prior art, the present invention is by LED
Covering one layer of reflecting material on the exiting surface of packaging side and form one layer of reflecting layer, reflecting layer will be from
Described packaging body is incident to light thereon and reflexes to described packaging body opposite side exiting surface, can make
The light energy of top half by reflecting layer reflex in the visual range of the latter half, effectively promote
The light intensity of viewable portion, thus reach display applications end energy-saving effect, and it is dirty to reduce light
Dye.
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the light path schematic diagram during work of prior art symmetry LED packaging；
Fig. 2 is the light type curve synoptic diagram of prior art symmetry LED packaging；
Fig. 3 is the cross-sectional structure schematic diagram of the LED packaging of first embodiment of the invention；
Fig. 4 is the longitudinal section light path schematic diagram of the LED packaging of first embodiment of the invention；
Fig. 5 is the cross section light path schematic diagram of the LED packaging of first embodiment of the invention；
Fig. 6 be the reflectance in the LED packaging reflecting layer of first embodiment of the invention be 80%
Light ray curve；
Fig. 7 is that the reflectance in the LED packaging reflecting layer of first embodiment of the invention is
The light ray curve of 100%；
Fig. 8 is the outdoor display screen structural representation of second embodiment of the invention.
Detailed description of the invention
Below by drawings and embodiments, the solution of the present invention is described in further detail, but
In below describing, simply to illustrate that rather than limit.
Refering to shown in Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is the LED envelope of first embodiment of the invention
The cross-sectional structure schematic diagram of dress device.
Fig. 4 is that the vertical of the LED packaging of first embodiment of the invention cuts cross section light path signal
Figure.
Fig. 5 is the cross section light path schematic diagram of the LED packaging of first embodiment of the invention.
Present embodiment provides a kind of LED packaging 30, including: LED luminescence chip 301,
Cover the packaging body 302 of described LED luminescence chip and cover at described packaging body side exiting surface
Reflecting layer 303, described reflecting layer will be incident to smooth line reflection thereon from described packaging body 302
To described packaging body opposite side exiting surface.
Further, described packaging body 302 is oval structure, and described reflecting layer 303 is positioned at described
On half part exiting surface of oval packaging body 302 axis of symmetry side.
Further, the reflectance in described reflecting layer is 60%～100%.
Further, described LED packaging 30 is inline package.
LED packaging 30 in the present invention, based on the asymmetric theory in polarisation visual angle,
The asymmetric theory in described polarisation visual angle be centrage be symmetrical ellipse figure, utilize the reflecting layer will
The light of the oval sidewise top half of Vertical Square reflexes to the latter half, makes light collection arrive right
Facade, namely the latter half, light collection, make the light-emitting area emergent light light intensity of the latter half increase
Adding, the light in visual range increases.
Referring still to Fig. 3, Fig. 4 and Fig. 5, specifically, LED luminescence chip in the present invention
Packaging body 302 is oval structure, in going out of the packaging body 302 axis of symmetry side of described oval structure
Cover one layer of reflecting material on bright finish, form reflecting layer 303, will be from described by reflecting layer 303
Packaging body 302 is incident to light thereon and reflexes on packaging body 302 opposite side exiting surface, the most logical
After crossing reflecting layer 303 reflection, the light of packaging body side is transferred in opposite side visual range, as
Shown in Fig. 5, LED luminescence chip 301 packaging body 302 of the light transmission oval structure sent,
The light having side, reflecting layer 303 is reflexed to opposite side by reflecting layer 303, compared to Figure 1 symmetrical
Axle is remarkably reinforced with the light intensity of lower part.
During described packaging body 302 surface covers reflecting material formation reflecting layer 303, this
Invention have employed coating technique.Coating technique refers to cover one layer with laminating machine on the surface of printing
0.012～0.020mm thick transparent plastic film and form the Product processing skill of a kind of paper unification
Art.The packaging technology of LED luminescence chip includes die bond, bonding wire, solid glue and test, this embodiment party
Formula adds coating technique after solid glue, with oval structure packaging body 302 normal plane as separation,
Need uniform fold reflecting material in the opposite of optically focused, make reflecting material cover and tie at LED ellipse
The side on structure packaging body 302 surface, forms reflecting layer 303.
The reflectance of the reflecting material on reflecting layer 303 be 60%, 70%, 80%, 100% or
It it is any one value in 60% to 100%.The reflectance in reflecting layer 303 is the highest, will be from encapsulation
Body 302 is incident to light thereon and reflexes to the effect on packaging body 302 opposite side exiting surface more
Good, as shown in Figure 6 and Figure 7.Fig. 6 is that the LED packaging of first embodiment of the invention is anti-
Penetrate the light ray curve that reflectance is 80% of layer；Fig. 7 is the LED of first embodiment of the invention
Packaging reflecting layer d reflectance is the light ray curve of 80%.By Fig. 6 and Fig. 7 it can be seen that
The reflectance in reflecting layer 303 is the highest, and light distribution changes the most obvious, and reflecting effect is the best.
Meanwhile, the LED packaging 30 in present embodiment is direct insertion encapsulation, Ke Yizhi
Patch on printed panel or base.
Being different from prior art, the LED packaging 30 in present embodiment is by tying at ellipse
Cover one layer of reflecting material on the exiting surface of the packaging body 302 axis of symmetry side of structure, form reflecting layer
303, light thereon will be incident to from described packaging body 302 by reflecting layer 303 and reflex to envelope
On dress body opposite side exiting surface, effectively promote the light intensity of viewable portion, thus reach energy-saving effect,
And light pollution can be reduced.
As shown in Figure 8, Fig. 8 is the outdoor display screen structural representation of second embodiment of the invention.
Present embodiment provides a kind of outdoor display screen 40, including multiple LED packagings 30,
Described LED packaging 30 includes: LED luminescence chip 301, cover described LED luminescence core
The packaging body 302 of sheet and covering reflecting layer 303 of exiting surface on the upside of described packaging body, described
Reflecting layer 303 will be incident to light thereon from described packaging body and reflex to go out on the downside of described packaging body
Bright finish.
Further, described packaging body 302 is oval structure, and described reflecting layer 303 is positioned at described
On half part exiting surface of oval packaging body 302 axis of symmetry side.
Further, the reflectance in described reflecting layer 303 is 60%～100%.
Further, described LED packaging 30 is inline package.
As shown in Figure 8, specifically, the outdoor display screen in present embodiment includes multiple above-mentioned
LED packaging 30, wherein, described LED packaging 30 include LED luminescence chip 301,
Oval encapsulating structure packaging body 302 and covering reflecting layer 303 institute of exiting surface on the upside of packaging body
State reflecting layer 303 to be incident to light thereon from described packaging body 302 and reflex to described packaging body
Exiting surface on the downside of in the of 302, is transformed into the latter half by the light energy of top half.In present embodiment
Outdoor display screen 40 in each LED packaging 30 all by exiting surface on the upside of packaging body 302
Light gather on the downside of packaging body 302, the outdoor display screen 40 being effectively improved in present embodiment
The light intensity of visual range.
The reflectance of the reflecting material on reflecting layer 303 be 60%, 70%, 80%, 100% or
It it is any one value in 60% to 100%.The reflectance of reflecting material is the highest, will be from packaging body
302 to be incident to the effect that light thereon reflexes on packaging body 302 opposite side exiting surface the best.
Owing to the LED packaging 30 in present embodiment is the LED envelope in the first embodiment
Dress device, by the reflectance in the LED packaging reflecting layer such as Fig. 6 first embodiment of the invention
It it is the LED packaging reflecting layer of 80% light ray curve and Fig. 7 first embodiment of the invention
Reflectance is shown in the light ray curve of 100%, from two figure contrasts, when reflecting layer 303
Reflectance is the highest, and light distribution is the most obvious, and reflecting effect is the best.
In outdoor display screen 40 in the present invention, the reflecting layer 303 of LED packaging 30 is anti-
The rate of penetrating is the reflecting material of 100%, and the most described reflecting material has total reflection function, it is possible to have most
Packaging body 302 is incident to light thereon reflexing on the downside of packaging body on exiting surface of effect, makes whole
The light of individual screen and energy are all gathered on the downside of visual orientation.
Meanwhile, the LED packaging 30 in present embodiment outdoor display screen 40 is direct insertion
Encapsulation, can be directly inserted on printed panel or base, the installation on convenient display screen out of doors.
Again due to the LED packaging in present embodiment be in the first embodiment LED envelope
Dress device 30, particularly with regard to explanation the such as first embodiment institute of asymmetric theory and manufacturing process
Stating, therefore not to repeat here.
Being different from prior art, the outdoor display screen 40 in present embodiment includes multiple oval knot
The LED packaging of one layer of reflecting material is covered on exiting surface on the upside of structure packaging body 302 normal plane
30, on the upside of packaging body, on exiting surface, form reflecting layer 303, will be incident to it from packaging body 302
On light all reflex to exiting surface on the downside of described packaging body 302, by the light energy of top half
It is transformed into the latter half, effectively promotes the light intensity of viewable portion, and can effectively reach outdoor aobvious
Display screen application end energy-saving effect, and light pollution can be reduced.
The foregoing is only embodiments of the present invention, not thereby limit the patent model of the present invention
Enclosing, every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process become
Change, or be directly or indirectly used in other relevant technical fields, be the most in like manner included in the present invention's
In scope of patent protection.
Claims (6)
1. a LED packaging, it is characterised in that including: LED luminescence chip, covering institute
State the packaging body of LED luminescence chip and cover in the reflecting layer of described packaging body side exiting surface,
Described reflecting layer will from described packaging body be incident to light thereon reflex to described packaging body another
Side exiting surface, wherein, described packaging body is elliptical shape, and described reflecting layer is positioned at described oval envelope
On half portion outboard exiting surface of dress body axis of symmetry side；
Described reflecting layer is formed by coating technique.
LED packaging the most according to claim 1, it is characterised in that described reflecting layer
Reflectance be 60%～100%.
LED packaging the most according to claim 1, it is characterised in that described LED
Packaging is inline package.
4. an outdoor display screen, it is characterised in that include multiple LED packaging, described
LED packaging includes: LED luminescence chip, cover the packaging body of described LED luminescence chip
And covering the reflecting layer of exiting surface on the upside of described packaging body, described reflecting layer will be from described encapsulation
Body is incident to light thereon and reflexes to exiting surface on the downside of described packaging body, wherein, described packaging body
For elliptical shape, described reflecting layer is positioned at half portion outboard of described oval packaging body axis of symmetry side
On exiting surface；
Described reflecting layer is formed by coating technique.
Outdoor display screen the most according to claim 4, it is characterised in that described reflecting layer
Reflectance is 60%～100%.
Outdoor display screen the most according to claim 4, it is characterised in that described LED encapsulates
Device is inline package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378976.8A CN103441209B (en) | 2013-08-27 | 2013-08-27 | Outdoor display screen and LED packaging thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378976.8A CN103441209B (en) | 2013-08-27 | 2013-08-27 | Outdoor display screen and LED packaging thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103441209A CN103441209A (en) | 2013-12-11 |
| CN103441209B true CN103441209B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378976.8A Active CN103441209B (en) | 2013-08-27 | 2013-08-27 | Outdoor display screen and LED packaging thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10248372B2 (en) | 2013-12-31 | 2019-04-02 | Ultravision Technologies, Llc | Modular display panels |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9195281B2 (en) | 2013-12-31 | 2015-11-24 | Ultravision Technologies, Llc | System and method for a modular multi-panel display |
| US9311847B2 (en) | 2014-07-16 | 2016-04-12 | Ultravision Technologies, Llc | Display system having monitoring circuit and methods thereof |
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| CN1851940A (en) * | 2005-04-22 | 2006-10-25 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode |
| CN202584606U (en) * | 2012-03-16 | 2012-12-05 | 秦玉成 | Straight-insert type light emitting diode (LED) lamp display screen |
| CN203491299U (en) * | 2013-08-27 | 2014-03-19 | 深圳雷曼光电科技股份有限公司 | Outdoor display screen and LED packaging devices thereof |
-
2013
- 2013-08-27 CN CN201310378976.8A patent/CN103441209B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851940A (en) * | 2005-04-22 | 2006-10-25 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode |
| CN202584606U (en) * | 2012-03-16 | 2012-12-05 | 秦玉成 | Straight-insert type light emitting diode (LED) lamp display screen |
| CN203491299U (en) * | 2013-08-27 | 2014-03-19 | 深圳雷曼光电科技股份有限公司 | Outdoor display screen and LED packaging devices thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10248372B2 (en) | 2013-12-31 | 2019-04-02 | Ultravision Technologies, Llc | Modular display panels |
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| CN103441209A (en) | 2013-12-11 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Outdoor display screen and its LED packaging device Effective date of registration: 20211222 Granted publication date: 20160817 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: LEDMAN OPTOELECTROIC Co.,Ltd. Registration number: Y2021980015927 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230720 Granted publication date: 20160817 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: LEDMAN OPTOELECTROIC Co.,Ltd. Registration number: Y2021980015927 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |