CN201355545Y - LED display screen - Google Patents
LED display screen Download PDFInfo
- Publication number
- CN201355545Y CN201355545Y CNU2009201050553U CN200920105055U CN201355545Y CN 201355545 Y CN201355545 Y CN 201355545Y CN U2009201050553 U CNU2009201050553 U CN U2009201050553U CN 200920105055 U CN200920105055 U CN 200920105055U CN 201355545 Y CN201355545 Y CN 201355545Y
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- Prior art keywords
- led
- led display
- emitting diode
- module
- light emitting
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Abstract
The utility model discloses an LED display screen comprising at least one LED module. The LED module comprises a plurality of LED units, wherein each LED unit comprises a PCB board, at least one LED light-emitting diode and a control module thereof; each LED light-emitting diode comprises an LED chip and a packaging structure; and the surface of the LED chip is provided with at least one convex part or a concave part formed by coarsening. The LED display screen has good light-emitting effect and the light extraction efficiency of the LED chip is high.
Description
Technical field
The utility model relates to a kind of LED lighting device, in particular, and a kind of penetrating LED display.
Background technology
LED display has become the sign of urban information modernization construction as a kind of important means of information propagation.Along with socioeconomic continuous progress, and the LED display technique is constantly perfect, and people will more and more go deep into the understanding of LED display, and its application will be more and more wider.
Penetrating LED display is more in light weight than traditional LED display, perfect heat-dissipating, installation are carried all very conveniently, and therefore the application of penetrating LED display is also more and more wider.
In the prior art, the display effect of LED display is except outside the Pass having with external influence, and is mainly relevant with light source itself, as, what directly influence the LED luminescence efficiency is exactly the taking-up efficient of LED crystal grain light.
Therefore, there is defective in prior art, needs to improve.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of illumination effect good, the high LED display of taking-up efficient of led chip light.
The technical solution of the utility model is as follows: a kind of LED display, comprise at least one led module, and described led module comprises some LED unit; Wherein, each LED unit comprises a pcb board, at least one LED light emitting diode and control module thereof; Each LED light emitting diode comprises a led chip and an encapsulating structure; The surface of described led chip has at least one protuberance or the recess that alligatoring forms.
Described LED display, wherein, the surface of described led chip has at least one protuberance and the recess that alligatoring forms.
Described LED display, wherein, described protuberance or recess be shaped as taper, circle, ellipse or custom-shaped.
Described LED display, wherein, the surface of described encapsulating structure forms at least one protuberance or recess, so protuberance or recess shapes are polygon circular, oval or that three limits are above.
Described LED display, wherein, described encapsulating structure is made by the silicones material of black, and described black silicon resin is zero luminance or approaches zero silicones.
Described LED display, wherein, its surface also covers the rete of a black.
Described LED display, wherein, described led module is a netted led module, each LED unit is arranged, and described netted led module is shaped as triangle or its combination or custom-shaped.
Described LED display, wherein, it also comprises a framework, described framework is used for fixing described netted led module.
Described LED display, wherein, it also comprises an entablature and a sill, is separately fixed on described netted led module two opposed side edges; At least one middle cross beam also is set, and each middle cross beam is evenly distributed between described entablature and the described sill.
Described LED display, wherein, each LED light emitting diode is OLED Organic Light Emitting Diode and drives structure thereof.
Adopt such scheme, the utility model has at least one protuberance or the recess that alligatoring forms by the surface with led chip, utilize the geometric configuration on led chip surface to destroy the inner total reflection phenomenon that the LED grain surface takes place, thereby improve the taking-up efficient of led chip light, make the LED display illumination effect good.
Description of drawings
Fig. 1 is an overall schematic of the present utility model;
Fig. 2 is the synoptic diagram of LED light emitting diode in the utility model;
Fig. 3 is the circuit diagram of pcb board of the present utility model;
Fig. 4 is the synoptic diagram of netted led module in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment 1
As shown in Figure 1, present embodiment provides a kind of LED display, this LED display comprises at least one led module 101, and described led module 101 is made up of some LED unit, and each LED unit comprises a pcb board 102 and at least one LED light emitting diode 103 and control module thereof; And each LED unit is arranged, so that the present embodiment LED display, the display requirement of the LED display of satisfied most of routine.
The shape of described led module 101 can be set to triangle or its combination or custom-shaped according to the actual requirements, and leg-of-mutton combination can be rectangle, pentagon, hexagon etc., and custom-shaped can be circle, ellipse etc.
Each LED light emitting diode 103 comprises a led chip 105 and an encapsulating structure 104.
As shown in Figure 2,, can adopt the surface coarsening technology, at least one protuberance or recess 202 that the surface coarsening of described led chip 105 is formed for the luminous extraction efficiency that makes described led chip 105 reaches the highest; Perhaps, the led chip that includes at least one protuberance and at least one recess that the surface coarsening of described led chip 105 is formed.
For example, can adopt conventional semiconductors light shield and engraving method or Wet-type etching modes such as (Wet Etching) to come described led chip 105 is carried out surface coarsening.
Adopt the surface coarsening technology that alligatoring is carried out on the surface of led chip, not only can carry out alligatoring to the side (sidewall) of the crystal grain epitaxial layer of led chip 105, can also carry out alligatoring to the substrate of crystal grain epitaxial layer, make led chip 105 have better luminous taking-up efficient.
In each led chip 105, being shaped as of described protuberance or recess 202 can be taper, circle, ellipse or custom-shaped; Described custom-shaped can be the combination of various regular shapes, for example is circular and the combined shaped of taper or be circle and oval-shaped combination etc.
Described encapsulating structure 104 can be the epoxy resin of using always, and also can adopt is that the silicones of black encapsulates.
Silicones is to have highly cross-linked cancellated polysiloxane, has the dual nature of organic resin and inorganic material concurrently, has unique physical and chemical performance.Mainly comprise: methyl phenyl silicone resin, methyl silicon resin, low phenyl methyl silicones, the organic siliconresin emulsion, the self-drying type organic siliconresin, the high temperature modification organic siliconresin, epoxy modified silicone resin, organosilicon polyester modified resin, self-drying type environmental protection organic siliconresin, environment-protecting silicone resin, the non-viscous paint organic siliconresin, high light organic siliconresin, the benzyl transparent silicon resin, methyl transparent organic silicon resin, the bonding silicones of mica, poly-methyl silicon resin, amino silicone, fluorine silicon resin, silicon resin solution, the organosilicon-epoxide resin, organic silicon polyester resin, the solvent-resisting organic siliconresin, the organic siliconresin tackifier, the fluorine silicon resin sealant, the high-temperature resisting methyl silicones, the self-drying type organic silicon insulating varnish, methyl MQ silicones, vinyl MQ silicones and organosilicon acrylic resin coating.
Because silicones has extraordinary light transmission, thermotolerance, corrosion-resistant and insulativity etc., so silicones can be used for the encapsulating material of LED light emitting diode.And the silicones of black, especially adopt zero luminance or approach zero black silicon resin, not only has good light transmittance, and silicones exerts an influence hardly to the light that the LED light emitting diode sends, therefore, adopt the silicone encapsulation of black, the light that each LED light emitting diode sends is the purest, the transmissivity height, thus make this example LED display display effect best.
In addition; because encapsulating structure 104 not only plays a protective role to led chip; for example; play protective effects such as protection against electric shock, waterproof and dustproof; the light that the material of encapsulating structure 104 itself also can send led chip 104 plays passive influence, for example; light in reflecting extraneous process by total reflection, thereby the light emission rate of LED light emitting diode is reduced.
In order to improve the light extraction efficiency of LED light emitting diode 103, can also form at least one protuberance or recess 201 on the surface of described encapsulating structure 104, so the shape of protuberance or recess 201 can be polygons circular, oval or more than three limits, by changing the surface configuration of encapsulating structure, light is directly reflected outside the encapsulating structure, destroy the total reflection that LED light emitting diode 103 emits beam; And, also can reduce the order of reflection of light in encapsulating structure, reduce absorbed possibility, thereby improve the light emission rate of LED light emitting diode light.
As shown in Figure 3, a positive source line 301, a power-polar curve 303 and at least one signal wire 302 are set on pcb board 102.Positive source line 301 and power-polar curve 303 can provide voltage for each LED unit in the present embodiment, and LED light emitting diode 103 is used for the display light source of LED display as light source.
Described LED light emitting diode 103 can be red LED light emitting diode or blue led light emitting diode or green LED light emitting diode.Described LED light emitting diode can adopt pinned encapsulation, surface-mount type encapsulation or other forms of encapsulation, as, other form encapsulation can encapsulate for Piranha.
As: the control chip ZQL9712 that control module 304 is produced for the Beijing Zhongqing Micro-digit Equipment Development Co., Ltd, four the control signal wire transmission of control signals of control chip ZQL9712 by forming by four leads, and, according to control signals transmitted, 3 LED light emitting diodes of drive controlling, or a plurality of versicolor LED light emitting diodes of drive controlling.
And for example: the single line control chip ZQL1111 that single line control module 304 is produced for the Beijing Zhongqing Micro-digit Equipment Development Co., Ltd, the control signal wire transmission of control signals of single line control chip ZQL1111 by forming by a lead, and, according to control signals transmitted, 3 different LED light emitting diodes of drive controlling.
Embodiment 2
As shown in Figure 4, in embodiment 1, described led module is a netted led module, be that the present embodiment LED display comprises at least one netted led module 101, described netted led module 101 is made up of some LED unit, and each LED unit comprises a pcb board 102 and at least one LED light emitting diode 103 and control module thereof.
For example, each LED unit can form the LED lamp bar of delegation or row each other by linkage unit 401, and, the LED unit of the end of each LED lamp bar, LED unit with adjacent another LED lamp bar end interconnects by linkage unit 401 respectively, forms described netted led module 101 with this.
Perhaps, each LED unit further is connected with an adjacent every LED unit mutually by linkage unit 401 respectively, forms described netted led module 101 with this.
Each LED unit in the netted led module 101 is arranged, so that the present embodiment LED display, the display requirement of the LED display of satisfied most of routine.
The shape of described netted led module 101 can be set to triangle or its combination or custom-shaped according to the actual requirements, and leg-of-mutton combination can be rectangle, pentagon, hexagon etc., and custom-shaped can be circle, ellipse etc.
Described linkage unit 401 comprises a positive source line, a power-polar curve and at least one signal wire, and each LED unit is electrically connected mutually with signal by above-mentioned each circuit and is connected, and becomes one and can show animation and penetrating LED display.
Perhaps, described linkage unit 401 also comprises one second pcb board, and described positive source circuit, described power cathode circuit and each signal line are printed on respectively on described second pcb board, and the electrical connection that is used between the adjacent two LED unit is connected with signal; It is fixedly connected by described second pcb board to be each LED unit, and, be electrically connected mutually with signal with each signal line by described positive source circuit, described power cathode circuit and be connected.
Connect more firmly in order to make between the two adjacent LED unit, the pcb board in described second pcb board and each the LED unit can be one-body molded, and soon each pcb board and described second pcb board in each LED unit is set to holistic pcb board; Make described reticulate texture more firm, thereby make present embodiment LED display integral body more firm.
Embodiment 3
In embodiment 2, the present embodiment LED display also comprises a framework, and described framework is used for fixing described netted led module, makes the present embodiment LED display whole firm.
Described netted led module can be by being provided with stationary installation, and be fixed on the framework by described stationary installation, described stationary installation can be for: gib screw, rivet, latch, clamp, corresponding buckle and draw-in groove and suitable internal and external threads etc., as long as described netted led module can be fixed on the described framework.
Embodiment 4
In embodiment 3, described framework also can adopt an entablature and a sill to replace, and described entablature and described sill can play same fixation to described netted led module.Usually, described entablature and described sill be separately fixed on two opposed side edges of described netted led module or side near so that described relatively entablature of described netted led module and described sill quality balance.
For example, described netted led module is changed to rectangle, and described entablature can be arranged on the upper end or the left end of described netted led module, and described sill can be arranged on the lower end or the right-hand member of described netted led module, so that this example LED display is whole firm.
Embodiment 5
In embodiment 4, can also between described entablature and described sill, at least one middle cross beam be set, each middle cross beam is evenly distributed between described entablature and the described sill, so that the present embodiment LED display is more firm.
For example, between described entablature and described sill, one middle cross beam only is set, described middle cross beam can be arranged on described netted led module middle part, be that described middle cross beam is parallel with described sill with described entablature respectively, and, with the distance of described entablature with to equating with the distance of described sill, so that the described relatively entablature of present embodiment LED display, described sill and described middle cross beam quality balance can very firmly be fixed on each crossbeam.
Embodiment 6
On the arbitrary basis of embodiment 1 to 5, each LED unit further is provided with the unit outer cover of a tool protective effect, described unit outer cover can be closed, be this integral body of described unit outer cover as a sealing, or described unit outer cover installs and fixes it on the LED unit of correspondence, and the integral body of the LED unit corresponding with it composition one sealing, described unit outer cover can play the protective effect of waterproof and dustproof, protection against electric shock etc. to its corresponding LED unit; For the light that each LED light emitting diode is sent is not subjected to the influence of unit outer cover material itself, as, the reflection of unit outer cover material, extinction etc., the material of described unit outer cover also can adopt the silicones of black to make.
In addition, the unit outer cover also can be open type, be that at least one open ports is set on the unit outer cover, each open ports can be used to make the light-emitting area of each LED light emitting diode to stretch out outer cover outside, described unit, and the light that each light emitting diode is sent is not subjected to the influence of unit outer cover material equally fully.
Embodiment 7
On the arbitrary basis of embodiment 1 to 6, be not subjected to the influence of surrounding environment for the light that each LED light emitting diode is sent, as: absorb, reflection etc., can also on the surface of present embodiment LED display, be covered with the rete of one deck black, rete can cover the surface of each pcb board by the mode of plated film, the surface of each linkage unit etc., because the surface of LED display is coated with the rete of black, the black rete can be common black plastic, black plastic has light absorptive, the light of direct irradiation on the LED display surface can be absorbed, make the present embodiment LED display not allow to be subject to the influence of extraneous factor, as available light, the light of other object reflections etc., therefore, the contrast of present embodiment LED display is the highest, and display effect is very good.
Embodiment 8
In above-mentioned each example, described LED light emitting diode, can be OLED (Organiclight-emitting diode, Organic Light Emitting Diode), comprise double-deck A type (double layer-A, DL-A), double-deck Type B (double layer-B, DL-B), three layers of A type (three layer-A, TL-A), three layers of Type B (three layer-B, TL-B), single quantum or Multiple Quantum Well (multiplequantumwell, MQW) OLED of structure or the like, the present invention do not make any additional limits to this.Like this, need not backlight, OLED adopts extremely thin coating of organic material and glass substrate, as electric current by the time, OLED will be luminous, has that reaction is fast, in light weight, a thin thickness, simple structure, low cost and other advantages.
For example, described OLED basic structure is an indium tin oxide that links to each other with positive source (ITO), adds another metallic cathode, is bundled into the structure as sandwich.Comprised in the total layer: hole transmission layer (HTL, Hole Transport Layer), luminescent layer (EL, Emitter Layer) and electron transfer layer (ETL, Electron Transport Layer).When the supply appropriate voltage, the positive electrical hole will combine in luminescent layer with the negative electrode electric charge, produces light, according to the different RGB three primary colors that produce of its prescription, constitutes basic color.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (10)
1, a kind of LED display comprises at least one led module, and described led module comprises some LED unit;
It is characterized in that each LED unit comprises a pcb board, at least one LED light emitting diode and control module thereof;
Each LED light emitting diode comprises a led chip and an encapsulating structure;
The surface of described led chip has at least one protuberance or the recess that alligatoring forms.
2, LED display according to claim 1 is characterized in that, the surface of described led chip has at least one protuberance and the recess that alligatoring forms.
3, LED display according to claim 1 is characterized in that, described protuberance or recess be shaped as taper, circle, ellipse or custom-shaped.
4, LED display according to claim 1 is characterized in that, the surface of described encapsulating structure forms at least one protuberance or recess, thus protuberance or recess be shaped as the above polygon in circle, ellipse or three limits.
5, LED display according to claim 1 is characterized in that, described encapsulating structure is made by the silicones material of black, and described black silicon resin is zero luminance or approaches zero silicones.
6, LED display according to claim 1 is characterized in that, its surface also covers the rete of a black.
7, LED display according to claim 1 is characterized in that, described led module is a netted led module, and each LED unit is arranged, and described netted led module is shaped as triangle or its combination or custom-shaped.
8, LED display according to claim 7 is characterized in that, it also comprises a framework, and described framework is used for fixing described netted led module.
9, LED display according to claim 7 is characterized in that, it also comprises an entablature and a sill, is separately fixed on described netted led module two opposed side edges;
At least one middle cross beam also is set, and each middle cross beam is evenly distributed between described entablature and the described sill.
According to the arbitrary described LED display of claim 1 to 9, it is characterized in that 10, each LED light emitting diode is OLED Organic Light Emitting Diode and drives structure thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201050553U CN201355545Y (en) | 2009-01-12 | 2009-01-12 | LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201050553U CN201355545Y (en) | 2009-01-12 | 2009-01-12 | LED display screen |
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| Publication Number | Publication Date |
|---|---|
| CN201355545Y true CN201355545Y (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201050553U Expired - Fee Related CN201355545Y (en) | 2009-01-12 | 2009-01-12 | LED display screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763779A (en) * | 2009-12-30 | 2010-06-30 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
| CN101814260A (en) * | 2009-12-23 | 2010-08-25 | 北京巨数数字技术开发有限公司 | Light and thin LED display screen and LED display system |
| WO2015024364A1 (en) * | 2013-08-21 | 2015-02-26 | 深圳Tcl新技术有限公司 | Backlight module and display device comprising same |
| CN107438899A (en) * | 2015-03-31 | 2017-12-05 | 科锐公司 | Light emitting diode and method with encapsulating |
-
2009
- 2009-01-12 CN CNU2009201050553U patent/CN201355545Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814260A (en) * | 2009-12-23 | 2010-08-25 | 北京巨数数字技术开发有限公司 | Light and thin LED display screen and LED display system |
| CN101763779A (en) * | 2009-12-30 | 2010-06-30 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
| CN101763779B (en) * | 2009-12-30 | 2014-12-03 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
| WO2015024364A1 (en) * | 2013-08-21 | 2015-02-26 | 深圳Tcl新技术有限公司 | Backlight module and display device comprising same |
| CN107438899A (en) * | 2015-03-31 | 2017-12-05 | 科锐公司 | Light emitting diode and method with encapsulating |
| CN107438899B (en) * | 2015-03-31 | 2021-04-30 | 科锐Led公司 | Light emitting diode with encapsulation and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20140112 |