CN108777118A - A kind of LED display modules and mosaic display screen - Google Patents
A kind of LED display modules and mosaic display screen Download PDFInfo
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- CN108777118A CN108777118A CN201810739298.6A CN201810739298A CN108777118A CN 108777118 A CN108777118 A CN 108777118A CN 201810739298 A CN201810739298 A CN 201810739298A CN 108777118 A CN108777118 A CN 108777118A
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- led display
- coat
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
Abstract
The present invention discloses a kind of LED display modules and mosaic display screen.The LED display modules include wiring board, the positive LED component that is installed on wiring board, the driving element for being installed on circuit back, the base's coat for covering LED component and driving element, the functional layer on base's coat;Wherein described base's coat is coats the layering that high factor optical conductive filler material is formed in the LED component and driving element;The wherein described functional layer is one layer or at least two layers in blue light protective layer, sharpening layer or sealer.Scheme provided by the invention can improve the security protection rank and clarity of product, meet the civilian demand of user.
Description
Technical field
The present invention relates to technical field of LED display, and in particular to a kind of LED display modules and mosaic display screen.
Background technology
(Light Emitting Diode's LCD (Liquid Crystal Display, liquid crystal display) and LED shine
Diode) it is currently two different display technologies, the display screen that LCD is made of liquid crystal, liquid crystal itself does not shine, and needs
Use backlighted;And the display screen that LED is then made of light emitting diode, it can actively shine.Light-emitting diode display is aobvious with LCD
Show that device is compared, LED is in brightness, power consumption, visible angle and refresh rate etc., all more advantages.LED module, be LED by
It is centainly regularly arranged to be encapsulated again together, in addition some treatment process are formed by product.Current LED large screen displays
Product Pixel Dimensions forward direction miniaturization develops, and point spacing also develops to 3mm or less;When spacing is smaller, the LED pictures of arrangement
Vegetarian refreshments is more, and display picture will be more clear, and when a spacing reaches 1.5mm, display effect can reach liquid crystal display
Effect.Therefore, small space distance LED display screen just gradually replaces indoor display screen field common DLP (Digital Light
Processing, digital light processing) splicing, LCD splicings etc., have a vast market foreground.Current small clearance display screen technology
Route there are mainly two types of, one is with SMD (abbreviation of Surface Mounted Devices, surface mount device) technology
For the surface-mount type display technology of representative;Another is to integrate small spacing with COB (Chips on Board, chip on board encapsulation)
It is encapsulated as the integration packaging technology represented, is that chip is directly installed on pcb board, integrated array encapsulation is formed, is conducive to reality
Existing smaller point away from integration packaging.
Although the continuous development of small space distance LED display screen technology, the scale of LED display applications is allowed further to expand,
There is also many problems at present for small space distance LED display screen, such as can not also expire in terms of display resolution and security protection rank
The civilian demand of foot and family use, such as the LED electronic components of display screen are exposed, fail safety standards;Display screen cannot
Collision, it is not waterproof, cannot it is dust-proof, cannot it is moisture-proof, be unable to antistatic etc..
Therefore, the small space distance LED display screen of the prior art, also cannot be satisfied the demand of user.
Invention content
In view of this, it is an object of the invention to propose a kind of LED display modules and mosaic display screen, product can be improved
Security protection rank and clarity meet the civilian demand of user.
According to an aspect of the present invention, a kind of LED display modules are provided:
The LED display modules include wiring board, the positive LED component that is installed on wiring board, are installed on circuit back
Driving element, cover LED component and driving element base's coat, the functional layer on base's coat;
Wherein described base's coat is that high factor optical conductive filler material is coated in the LED component and driving element
The layering expected and formed;
The wherein described functional layer is one layer or at least two layers in blue light protective layer, sharpening layer or sealer.
Preferably, the blue light protective layer is on base's coat, and the sharpening layer is in the blue light protective layer
On, the sealer is on the sharpening layer;Or,
The sharpening layer is on base's coat, and the blue light protective layer is on the sharpening layer, the table
Face protective layer is on the blue light protective layer.
Preferably, the blue light protective layer or sharpening layer plate one layer of Nano grade crystal factor optical material and are formed
Layering;
The sealer is one layer of layering for resisting hard optical film to be formed of plating.
Preferably, the thickness of base's coat is 0.1mm-8.0mm;Or,
The thickness of the blue light protective layer is 0.1mm-5mm;Or,
The thickness for sharpening layer is 0.1mm-5mm;Or,
The thickness of the sealer is 0.1mm-5mm.
Preferably, optical prism crystal fine particle is covered in emitter surface by the sharpening layer, and the optical prism is brilliant
The formation multilayer diffusing reflection of single light refraction is made point light source become area source by body particulate.
Preferably, the sharpening layer is often to set area in emitter surface to set number light by setpoint distance ordered arrangement
Learn prism crystal fine particle.
Preferably, the sharpening layer prints on optical prism crystal fine particle or is carved with anti-fake setting identification.
Preferably, the high factor optical conductive filler material includes epoxy resin or polyurethane;Or,
The high factor optical conductive filler material includes epoxy resin or polyurethane, further include scattering diluent, fire retardant or
One kind in black developing agent or at least two.
According to another aspect of the present invention, a kind of mosaic display screen is provided:
Including splicing framework and LED display modules as described above;
The LED display modules are at least two;
LED display modules contiguous concatenation in the joint frame body, and be fixed in the joint frame body.
Preferably, the mosaic display screen is spelled by the LED display modules of multiple identical sizes or different sizes
It connects.
Preferably, the mosaic display screen is tv display screen, the thickness of base's coat of the LED display modules
Degree is 0.1mm-5.0mm;Or,
The mosaic display screen is ground display screen, and the thickness of base's coat of the LED display modules is
0.5mm-8mm;Or,
The mosaic display screen is minute surface display screen, and the thickness of base's coat of the LED display modules is
0.3mm-5mm。
Preferably, the mosaic display screen is tv display screen, and the joint frame is covered in the LED display modules splicing
The edge of body.
Preferably, the splicing framework is an independent frame structure or is made of multiple frame structures.
From said program as can be seen that LED display modules provided by the invention include wiring board, are installed on wiring board front
LED component, be installed on the driving element of circuit back, and coat height because of sub-light in the LED component and driving element
It learns conductive filler material and forms base's coat.Because of the material property and LED of high factor optical conductive filler material
The material property of device is close, can realize the performance for merging and not influencing LED component with the filling of LED component.Moreover, using
After high factor optical conductive filler material forms base's coat, product can be allow to have the function of five anti-primary antibodies, by
Coated by the high factor optical conductive filler material of Nano grade in product surface, LED component without exposed lamp base, smooth surface without
Gap, can make original LED component such as light emitting diode be isolated from the outside, and just effectively obstructed environmental liquids and penetrated into
Inside it, to make product have waterproof and dustproof, moisture-proof, antistatic, anti-oxidation effect;In the prior art due to SMD tables
The lamp bead for pasting product is not seamlessly connected with PCB, this so that stress is be easy to cause in collision process to be concentrated in single lamp bead, and
And in the links such as the transport of display screen, installation, inevitably there are vibrations and collision, these lamps for all causing LED display hold
It is fragile.The present invention is that the high factor optical conductive filler material of one layer of Nano grade is covered in product surface, passes through the high factor
The very high integrity molding bonded of optics conductive filler material and wiring board, LED component and driving element etc., in product surface shape
At firm protective layer, moreover it is possible to be not rolled between the internal LED light of protection, to achieve the effect that good anticollision.This
Base's coat of invention forms full packet using high factor optical conductive filler material to wiring board, LED component and driving element
It wraps up in, effective blind so that LED component more effectively conducts heat in working condition, and the heat that transition is concentrated obtains effectively
Transmission;Moreover, whole one layer of product surface is all the high factor optical conductive filler material of nanoscale, make product formation one
Whole radiating surface is more favorable for extending life of product, lifting system stability in this way.The present invention is in addition to base's coat, also
Equipped with functional layer, wherein the functional layer is one layer or at least two layers in blue light protective layer, sharpening layer or sealer, it is blue
Light protection layer can all filter out the high energy shortwave blue light in blue light, avoid the blue light of energy from penetrating eye lens straight
Up to retina, to protect eyes;Sharpening layer can make traditional display product by the sharp change area source of point light source, shine more
Uniformly, display mode approximation area source effect also greatly improves the wide viewing angle of product;Sealer can be further
Reinforce impact resistant capability.
Mosaic display screen provided by the invention, including splicing framework and LED display modules, the LED display modules are extremely
Few two or more, by by LED display modules in the joint frame body contiguous concatenation, and be fixed in the joint frame body,
Various display screens can be spliced into, such as be spliced into tv display screen, ground display screen or minute surface display screen etc..
Further, when the mosaic display screen is tv display screen, base's coat of the LED display modules
Thickness can be 0.1mm-5.0mm;Or, the mosaic display screen be ground display screen when, the LED display modules it is described
The thickness of base's coat can be 0.5mm-8mm;Or, when the mosaic display screen is minute surface display screen, the LED shows mould
The thickness of base's coat of group is 0.3mm-5mm.
Description of the drawings
Disclosure illustrative embodiments are described in more detail in conjunction with the accompanying drawings, the disclosure above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein in disclosure illustrative embodiments, identical reference label
Typically represent same parts.
Fig. 1 is a kind of schematic block diagram of LED display modules according to an embodiment of the invention;
Fig. 2 is a kind of another schematic block diagram of LED display modules according to an embodiment of the invention;
Fig. 3 is a kind of appearance schematic diagram of LED display modules according to an embodiment of the invention;
Fig. 4 is an a kind of schematic block diagram of mosaic display screen according to an embodiment of the invention;
Fig. 5 is a kind of schematic surface of tv display screen according to an embodiment of the invention;
Fig. 6 is a kind of schematic surface of ground display screen according to an embodiment of the invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Although showing the preferred embodiment of the disclosure in attached drawing, however, it is to be appreciated that may be realized in various forms
The disclosure by embodiments set forth herein without should be limited.On the contrary, thesing embodiments are provided so that the disclosure more
Add thorough and complete, and the scope of the present disclosure can be completely communicated to those skilled in the art.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " several " are meant that two or more,
Unless otherwise specifically defined.
The present invention provides a kind of LED display modules, can improve the security protection rank and clarity of product, meet user's
Civilian demand.
The technical solution of the embodiment of the present invention is described in detail below in conjunction with attached drawing.
Fig. 1 is a kind of schematic block diagram of LED display modules according to an embodiment of the invention.
Referring to Fig. 1, a kind of LED display modules of the invention, including:
Wiring board 100, the driver for being installed on 100 positive LED component 101 of wiring board, being installed on 100 back side of wiring board
Part 102, the base's coat 201 for covering LED component 101 and driving element 102, the function on base's coat 201
Layer 20.
Base's coat 201 is that high factor optical conductive filler material is coated in the LED component and driving element
The layering expected and formed.
The functional layer 20 can be one layer or at least two layers in blue light protective layer, sharpening layer or sealer.For example,
It can be blue light protective layer, sharpen layer or sealer, or be divided into blue light protective layer and sharpen layer two layers, or be divided into
Blue light protective layer sharpens totally three layers of layer or sealer.
From said program as can be seen that LED display modules provided by the invention include wiring board, are installed on wiring board front
LED component, be installed on the driving element of circuit back, and coat height because of sub-light in the LED component and driving element
It learns conductive filler material and forms base's coat.Because of the material property and LED of high factor optical conductive filler material
The material property of device is close, can realize the performance for merging and not influencing LED component with the filling of LED component.And it uses
After high factor optical conductive filler material forms base's coat, product can be allow to have the function of five anti-primary antibodies, by
Coated by the high factor optical conductive filler material of Nano grade in product surface, LED component without exposed lamp base, smooth surface without
Gap, can make original LED component such as light emitting diode be isolated from the outside, and just effectively obstructed environmental liquids and penetrated into
Inside it, to make product have waterproof and dustproof, moisture-proof, antistatic, anti-oxidation effect;In the prior art due to SMD tables
The lamp bead for pasting product is not seamlessly connected with PCB, this so that stress is be easy to cause in collision process to be concentrated in single lamp bead, and
And in the links such as the transport of display screen, installation, inevitably there are vibrations and collision, these lamps for all causing LED display hold
It is fragile.The present invention is that the high factor optical conductive filler material of one layer of Nano grade is covered in product surface, passes through the high factor
The very high integrity molding bonded of optics conductive filler material and wiring board, LED component and driving element etc., in product surface shape
At firm protective layer, moreover it is possible to be not rolled between the internal LED light of protection, to achieve the effect that good anticollision.This
Base's coat of invention forms full packet using high factor optical conductive filler material to wiring board, LED component and driving element
It wraps up in, effective blind so that LED component more effectively conducts heat in working condition, and the heat that transition is concentrated obtains effectively
Transmission;Moreover, whole one layer of product surface is all the high factor optical conductive filler material of nanoscale, make product formation one
Whole radiating surface is more favorable for extending life of product, lifting system stability in this way.The present invention is in addition to base's coat, also
Equipped with functional layer, wherein the functional layer is one layer or at least two layers in blue light protective layer, sharpening layer or sealer, it is blue
Light protection layer can all filter out the high energy shortwave blue light in blue light, avoid the blue light of energy from penetrating eye lens straight
Up to retina, to protect eyes;Sharpening layer can make traditional display product by the sharp change area source of point light source, shine more
Uniformly, display mode approximation area source effect also greatly improves the wide viewing angle of product;Sealer can be further
Reinforce impact resistant capability.
Fig. 2 is a kind of schematic block diagram of LED display modules according to an embodiment of the invention.Fig. 2 is with respect to Fig. 1
More detailed description the solution of the present invention.
Referring to Fig. 2, LED display modules of the invention include:Wiring board 100 is installed on 100 positive LED devices of wiring board
Part 101, the driving element 102 for being installed on 100 back side of wiring board, coated in the base in LED component 101 and driving element 102
Coat 201, the blue light protective layer 202 on base's coat 201, the sharpening layer 203 on blue light protective layer 202,
Sharpening the sealer 204 on layer 203.
Wherein, such as can be LED light, LED chip or LED die, LED component 101 can fix LED component 101
In the front of circuit board 100;Driving element 102 for example can be IC chip or other driving elements, and driving element 102 can weld
It connects or mounts and the back side of wiring board 100.
Wherein, different specification size can be arranged in LED display modules, may be, for example, rectangle or square etc..Such as LED
The length of display module can be 50-200mm ranges, and wide can be 50-200mm ranges etc., for example, can be 50mm*100mm,
60mm*100mm or 80mm*120mm etc..
Wherein, the material coated by base's coat is high factor optical conductive filler material, the high factor optical
The material property of conductive filler material is close with the material property of LED component, can realize that the filling with LED component is merged and not
Influence the performance of LED component.The high factor optical conductive filler material of the present invention can be that the high factor optical heat conduction of nanoscale is filled out
Fill material.
The high factor optical conductive filler material of the present invention is a kind of nano level crystal factor optical material, can be coated
On display product surface, such as coating assist side 100, LED component 101 and driving element 102, base's coating is formed
Wiring board 100, LED component 101 and driving element 102, are all filled covering protection and got up by layer 201.
Wherein, the forming process of base's coat 201 may be used encapsulating mode and realize but not limited to this, for example, will
Including the LED display modules of wiring board 100, LED component 101, driving element 102 are fixed on the first mold component, and make LED
The LED component on display module surface is oppositely arranged with the second mold component, and high factor optical conductive filler material glue is poured into
In the cavity of second mold component;First mold component and the second mold component are coincide each other so that LED display modules up and down
LED component be immersed in downward in high factor optical conductive filler material glue, it is aobvious to the LED after encapsulating after glue solidification
Show that module carries out demoulding processing, allows for forming one layer of base to shield in the LED component of LED display module surface light emittings
Layer coat, and base coating layer surface is smooth, plays more preferable protective effect to LED component, can not only reach resistance to
The effect of impact, can be with waterproof.Wherein, high factor optical conductive filler material glue can be epoxy resin liquid, thermosetting glue
With any one in ultra-violet curing glue, these glues have the function of that pyrocondensation is small.When using condensation glue, complete
After being defoamed at vacuum, its natural coagulation is allowed.When using thermosetting glue, after completing vacuum defoaming, it is heated
Drying, makes its solidification.When using ultra-violet curing glue, after completing vacuum defoaming, directly pass through the second mold component
Irradiation ultraviolet light upwards, makes adhesive curing.
The high factor optical conductive filler material of the present invention, can be epoxy resin or polyurethane (polyurethane,
Referred to as polyurethanes, English abbreviation PU) material etc., and other can be mixed into high factor optical conductive filler material
Material composition, such as scattering diluent can be mixed into etc., scattering diluent can be by the setting of high factor optical conductive filler material gross mass
Percentage is matched.It can improve the horizontal and vertical visual angle of LED display to a certain extent by being mixed into scattering diluent.Example again
Such as, it can also be mixed into fire retardant or black developing agent etc. in high factor optical conductive filler material, wherein fire retardant, which is added, to be made
V0-V2 rank fire-protection ratings must be reached;It black developing agent is added can to reach and improve contrast, solve that PCB mass colours are inconsistent to ask
The effect of topic.
When the high factor optical conductive filler material of the present invention is epoxy resin, epoxy resin can be epoxide resin AB
Glue;Wherein, the component A in epoxy resin AB glue and B component can be combined by setting ratio, for example, component A and B component ratio
Can be 1:1-3:1 range etc., such as can be 1:1,1.5:1,3:1 etc., it can specifically be adjusted as needed.
When the high factor optical conductive filler material of the present invention is polyurethane, polyurethane can be polyurethane AB glue;Wherein,
Component A and B component in polyurethane AB glue can be combined by setting ratio, such as the ratio of component A and B component can be 1:1-
2:1 etc., such as can be 1:1,1.5:1,2:1 etc., it can specifically be adjusted as needed.
If adding scattering diluent into epoxy resin or polyurethane, scattering diluent proportioning can be 0.001%-0.9% but
It is not limited to this.
When the high factor optical conductive filler material of the present invention is epoxy resin, relevant parameter such as index of refraction, is consolidated hardness
Changing the index of shrinking percentage, TG points (fusing point), linear expansion coefficient and bending strength can refer to as shown in table 1 below but be not limited to
This:
Project | Parameter |
Index of refraction | 1-5 |
Hardness | >50 |
Cure shrinkage | 0.3%-2% |
TG(℃) | 50-80 |
Linear expansion coefficient | 50-90(ppm/℃) |
Bending strength | 5-30(kg/mm2) |
Table 1
When the high factor optical conductive filler material of the present invention is polyurethane, relevant parameter such as index of refraction, hardness, solidification
Shrinking percentage, TG points (fusing point), linear expansion coefficient and bending strength index can refer to as shown in table 2 below but be not limited to
This:
Project | Parameter |
Index of refraction | 1-5 |
Hardness | >40 |
Cure shrinkage | 0.3%-2% |
TG(℃) | 50-90 |
Linear expansion coefficient | 2-10(ppm/℃) |
Bending strength | 10-50(kg/mm2) |
Table 2
For example, the constituent of epoxy resin may include:Epoxy resin, benzyl alcohol, polyetheramine and the addition of all kinds of auxiliary
Agent etc..
For example, the constituent of polyurethane may include:Alicyclic Iso cyanates, polyol resin and the addition of all kinds of auxiliary
Agent etc..
Wherein, the thickness of base's coat is 0.1mm-8.0mm ranges, can be adjusted as needed, such as
Can be 0.1mm, 0.5mm, 1.0mm, 5.0mm etc..For example, coating thickness can generally be arranged and LED component 101 is high in front
Degree is consistent (for example), or is higher by certain length than 101 height of LED component;Coating thickness and driving overleaf can be generally set
Device 102 is highly consistent, or is higher by certain length than 102 height of driving element.
Wherein, the thickness of base's coat is typically chosen moderate thickness, and too thick luminance loss is too big, influences light extraction efficiency,
Too thin colour mixture is poor, and impact resistance and anti-pressure ability are also poor.
In addition, different thickness can also be arranged in base's coat according to application product, such as the LED display modules are used
When tv display screen, the thickness of base's coat is 0.1mm-5.0mm;The LED display modules for ground display screen (or
Referred to as floor tile display screen) when, the thickness of base's coat is 0.5mm-8mm;The LED display modules are used for minute surface display screen
When, the thickness of base's coat is 0.3mm-5mm.When applied to ground display screen, because need to be stepped down in above in view of more people
Stressing conditions, generally can all coat the thickness that can bear enough stress.
Wherein, the light transmittance of base's coat can be 50%-99%.
The present invention forms base's coat using high factor optical conductive filler material so that product can have five anti-one
Anti- function.So-called five anti-function refers to waterproof and dustproof, moisture-proof, antistatic, anti-oxidation function.It is shown in small spacing LED
Shield use during, especially south it is this be susceptible to moisture regain day in the environment of, display screen is particularly easy to dead lamp occur
Problem, in addition to wanting moisture-proof, small spacing is also faced in a series of protection problems such as waterproof and dustproof, antistatic, anti-oxidation in addition,
And pass through the display product of " surface optical processing " of the invention, since product surface is by the crystal factor optical material of Nano grade
Coating, for LED component without exposed lamp base, smooth surface is seamless, make original LED component such as light emitting diode with it is extraneous every
From, just effectively obstructed environmental liquids and penetrated into inside it, to make product have waterproof and dustproof, moisture-proof, antistatic,
Anti-oxidation effect, front side protective grade can reach IP67, and product is made to have more comprehensive protection effect.So-called crashworthiness
Hit function, refer to surface form firm protective layer can be with anticollision.In the prior art since the lamp bead of SMD Surface Mount products is not
It is seamlessly connected with PCB, this so that stress is be easy to cause in collision process to be concentrated in single lamp bead, and in the fortune of display screen
In the links such as defeated, installation, inevitably there are vibrations and collision, these lamps for all causing LED display are easily damaged.The present invention is
Cover the crystal factor optical material of one layer of Nano grade in product surface, by nano crystals factor materials and wiring board,
The very high integrity molding bonded of LED component and driving element etc., firm protective layer is formd in product surface, moreover it is possible to protect
It is not rolled between internal LED light, to achieve the effect that good anticollision.Therefore, the present invention is led using high factor optical
Hot packing material successfully realizes the dumb light coating to LED display surface, has overturned existing LED display protection skill
High definition LED display of new generation may be implemented in art so that product is in small clearance display screen, high-end lease, business display and family
There are wide application scenarios with " LED television " etc..
The present invention forms base's coat using high factor optical conductive filler material, also helps the stabilization for keeping product
Property.Such as in terms of integral heat sink, the heat transfer in the display screen system course of work is the important finger for considering a display product
Mark, the smaller small spacing product of SMD encapsulation of spacing, just will use high power little particle LED component such as LED brilliant
Member.But the lamp bead of LED component is that the form processed with patch is connect with PCB circuit board in traditional mode of production, two kinds of materials
Between material must gap at regular intervals, the presence in the gap then forms capacity of heat transmission obstacle in the LED component course of work.
Base's coat of the present invention, forms full wiring board, LED component and driving element using high factor optical conductive filler material
Package, is effectively filled with the gap of foregoing description so that LED component more effectively conducts heat in working condition, and transition is concentrated
Heat effectively transmitted;Moreover, whole one layer of product surface is all the high factor optical conductive filler material of nanoscale, make
The product formation radiating surface of one entirety is more favorable for extending life of product, lifting system stability in this way.Therefore, this hair
It is bright that the high factor of nanoscale is used by the specially treated to product panel using the high factor optical conductive filler technology of nanoscale
Optics conductive filler carries out full package filling to product surface and forms dumb light insulating layer, keeps LED component complete with external environment
Isolation extends life of product to effectively improve product temperature.
The present invention forms base's coat using high factor optical conductive filler material, it is also possible that LED display modules
Splicing it is more acurrate.Because Product Interface more satin is smooth, high precision apparatus treated edges of boards impulse- free robustness phenomenon, so spelling
The degree of connecing can be less than or the precision equal to 0.02mm.
The present invention uses the high factor optical conductive filler technology of nanoscale, has the small spacing module of tradition and the small spacing of COB
The major advantage of module, it have the advantages that it is controllable, simple for process, while taking into account COB modules, also solve COB modules spelling
Bright line problem between seam and mass colour problem of inconsistency provide certain technology branch for popularizing for small clearance display screen
It holds.
The present invention forms blue light protective layer 202 using Nano grade crystal factor optical material, and blue light protective layer 202 is arranged
On base's coat 201.
Wherein, the blue light protective layer 202 may be used plated film mode and realize, be plated on base's coat 201
One layer of Nano grade crystal factor optical material is formed.The thickness of blue light protective layer plated film can be 0.1mm-5mm, such as can be with
For 0.1mm, 0.5mm, 5.0mm etc..
Blue light is the important component of visible light, has the characteristics that wavelength is short, energy is high, but simultaneously to the eyes meeting of people
Generate more dazzling feeling.Blue light protective layer 202 is one layer of anti-blue light film, is reflected by interfering screen exit rays, and control is blue
The transmitance of light, and then blue light strength is weakened, achieve the effect that filter blue light, so as not to our eyes of direct projection.For example,
The high energy shortwave blue light that 380 nanometers to 410 nanometers of 100% can be filtered filters 60% 420 nanometers to 450 nanometers of indigo plant
Light, by the way that the high energy shortwave blue light in blue light is all filtered out, avoiding the blue light of energy from penetrating, eye lens are through to be regarded
Nethike embrane, to protect eyes.
By blue light protective layer 202, it can be that the display of display screen is softer, be found through overtesting, identical product does not make
Blue light protective layer is formed with present invention process, uneven luminescence phenomenon is presented in single blue, if showing that product uses with batch
Present invention process forms blue light protective layer, and color is softer.
The present invention is formed using Nano grade crystal factor optical material and sharpens layer 203, is sharpened the setting of layer 203 and is protected in blue light
On sheath 202.
Wherein, the sharpening layer 203 is realized using plated film mode, is one layer of nanometer of plating on the blue light protective layer 202
Rank crystal factor optical material is formed.It is described sharpen layer thickness can be 0.1mm-5mm, such as can be 0.1mm,
0.5mm, 5.0mm etc..
The sharpening layer of the present invention has used the sub- imaging technique of optical prism crystal fine particle.In optical field, prism is a kind of
Transparent optical element has flat polished surface, optical imagery can be kept softer, full with refracted light.The present invention
Prism element size compression to Nano grade can be generated completely new optical prism crystal by high-end accurate industrial equipment
Particulate, and optical prism crystal fine particle is covered in for example by illuminator by the high factor optical conductive filler material of nanoscale
LED component surface.When light is by this optical prism crystal fine particle period of the day from 11 p.m. to 1 a.m, original single light can be formed by continuous refraction
Multilayer diffusing reflection, original point light source is sharp to become area source.That is, the sharpening layer is micro- by being equipped with optical prism crystal
The constantly refraction of single light is formed multilayer diffusing reflection by particle so that point light source becomes area source.The present invention can be by base
Coat, blu-ray layer isolation after LED component such as light emitting diode corresponding to surface of position often setting area by setting away from
From ordered arrangement setting number optical prism crystal fine particle, such as can be every 8-80 light of 1x1 square millimeters of ordered arrangement
Learn prism crystal fine particle but not limited to this, such as 8,16,20,32 etc..
In addition, the present invention by high-end accurate industrial equipment printing or can also scribe on optical prism crystal fine particle
For anti-fake setting identification, optical prism crystal fine particle is coated according to specific path, realizes antiforge function.
Layer is sharpened by setting, traditional display product can be made by the sharp change area source of point light source, is shone more uniformly,
Display mode approximation area source effect, also greatly improves the wide viewing angle of product, and the display picture showed is wide viewing angle, is drawn
Face angle degree can reach all incomparable 175 degree of liquid crystal, show that 145 degree of effect of wide angle of product are more preferable compared to conventional.
In addition, moire fringes can also be effectively eliminated by sharpening layer.Moire fringes phenomenon is beat principle performance, when two bands
There is the pattern of spatial frequency to be overlapped, it will usually generate another new pattern, this new pattern is generally termed moire fringes.Due to LED
What large screen was formed by arranging consistent dot matrix luminous tube, light-emitting area is not big for entire LED large screens, forms latticed
Pattern, the two overlapping, be formed moire fringes.The present invention sharpens layer by setting and carries out optical treatment so that video camera is several
It can be shot in any angle, any position, any focal length and not generate the images of moire fringes.The sharpening layer of the present invention
Using optical prism crystal fine particle, by the sharp change area source of point light source, make it that can meet in translucency, tone etc. various
Camera shooting requires, and not will produce moire fringes.
The present invention forms sealer 204 using anti-hard optical film, the setting of sealer 204 sharpen layer 203 it
On.
Wherein, the sealer 204 is realized using plated film mode, and the sealer 204 is to sharpen layer 203
On plating one layer resist hard optical film formed.The thickness of sealer be can with 0.1mm-5mm, such as can be 0.1mm,
0.5mm, 5.0mm etc..Impact resistant capability can be further strengthened by sealer 204.
The LED display modules of the present invention have matte effect, can significantly improve product contrast, reduce glare and dazzling
Sense mitigates visual fatigue, reference can be made to Fig. 3, is a kind of appearance of LED display modules according to an embodiment of the invention
Schematic diagram.
It should be noted that above-mentioned is so that blue light protective layer to be arranged on base's coat, is set on blue light protective layer
It sets and illustrates for sharpening layer but not limited to this.For example, it can be the sharpening layers on base's coat, described
Blue light protective layer is on the sharpening layer, and the sealer is on the blue light protective layer.
In conclusion the LED display modules and display products of the present invention, have the function of five anti-primary antibodies, in addition may be used also
With effective protection blue light, protect eyes;Light extraction is soft, light is natural, visible angle is high;Screen surface consistency is high, and appearance is excellent
U.S., imaging image quality are more excellent;Splicing is more accurate, saves cost, product stability.Product of the present invention can be applied to indoor small
Away from LED high-definition display screens, high-end LED leases product, the processing of other LED displays factory, home theater, outdoor high-definition advertising machine
Etc. various scenes, usage scenario is wide.
The above-mentioned LED display modules for describing the present invention in detail, the present invention also provides a kind of mosaic display screens, below accordingly
Introduce the mosaic display screen of the present invention.
Fig. 4 is an a kind of schematic block diagram of mosaic display screen according to an embodiment of the invention.Referring to Fig. 4,
The mosaic display screen of the present invention, including splicing framework 401 and at least two LED display modules 402.
Wherein, the LED display modules 402 contiguous concatenation in the splicing framework 401, and it is fixed on the joint frame
In body 401.
Wherein, splicing framework 401 can be an independent whole frame structure, can also be to be made of multiple frame structures.
In 401 bottom of splicing framework, the LED display modules of the holder support installation of setting different number can be divided according to actual demand
402。
Wherein, the LED display modules 402 contiguous concatenation in the splicing framework 401.The LED display modules 402
It can be fixed on by bonding way in the splicing framework 401 but not limited to this.The LED display modules 402 can spell
The edge for covering splicing framework 401 is connect, realizes Rimless effect.
Mosaic display screen can by the LED display modules 402 of multiple identical sizes or different sizes splice and
At, such as mosaic display screen in Fig. 4 can be spliced by 9 LED display modules 402 but not limited to this, such as can
With 2,4,6,8 etc., particular number can be according to the overall size size of mosaic display screen and single led display module
Depending on size.
The mosaic display screen of the present invention can be the display screen of various application scenarios, such as indoor display screen curtain, outdoor aobvious
Display screen, indoor electric screen, outdoor advertisement screen, ground display screen, metope display screen etc..
Wherein, if mosaic display screen is tv display screen, the thickness of base's coat of the LED display modules
Generally 0.1mm-5.0mm.Wherein, if mosaic display screen is ground display screen, the base of the LED display modules applies
The thickness of coating is generally 0.5mm-8mm.Wherein, if mosaic display screen is minute surface display screen, the institute of the LED display modules
The thickness for stating base's coat is generally 0.3mm-5mm.
Wherein, when mosaic display screen is tv display screen, the size of tv display screen can be 21 cun, 42 cun,
47 cun, 54 cun, 68 cun, 110 cun etc. but not limited to this, the display screen of various sizes size can be spliced into.Ginseng
See Fig. 5, is a kind of schematic surface of tv display screen according to an embodiment of the invention.The tv display screen is by polylith
The thickness of base's coat is that the LED display modules of 0.1mm-5.0mm ranges are spliced.
The tv display screen of the present invention, because LED display modules form base using high factor optical conductive filler material
Coat, LED display modules interface more satin is smooth, and high precision apparatus treated edges of boards impulse- free robustness phenomenon can make
The splicing of LED display modules is more acurrate, and splicing degree can be less than or the precision equal to 0.02mm.
In addition, because LED display modules can be with waterproof and dustproof, moisture-proof, antistatic, anti-oxidation and can be with anticollision, therefore
For splicing framework without the additional LED display modules that frame protection periphery is arranged again, such LED display modules can direct splicing
To the edge of entire splicing framework, the display effect of video screen Rimless is realized.Wherein, the mosaic display screen is aobvious for TV
When display screen, has the characteristics that Rimless, full view, large scale, beautiful in colour.
Wherein, when the mosaic display screen is ground display screen, there is structure beauty, wear-resisting, wide-angle, installation, dismounting
The features such as simple.It is a kind of schematic surface of ground display screen according to an embodiment of the invention referring to Fig. 6.The ground
Face display screen is spliced by the LED display modules that the thickness of polylith base coat is 0.5mm-8mm ranges.
It should be noted that the mosaic display screen of the present invention uses LED display modules, present LED can also be saved and shown
The mask that class product generally uses can be in direct contact LED display modules surface, not only save face so during the installation process
This material is covered, also saves and plays mask lock screw this cumbersome work, greatly reduce reeling for following process
Secondary injury is caused to LED component such as light emitting diode, improves the quality of product.
In addition, in the case where tiled display screen is not lighted, display screen can use completely as mirror.
If this display screen is mounted in dancing room or gymnasium, the effect of mirror can be played completely when not lighting, allowed
Dancer can have found the action correctness of oneself in time, and can open display screen when needed, carry out practice or body-building,
To realize " screen is multi-purpose ".
Above it is described in detail according to the technique and scheme of the present invention by reference to attached drawing.
It will be understood by those of ordinary skill in the art that:The above is only a specific embodiment of the present invention, not
For limiting the present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all
It is included within protection scope of the present invention.
Claims (13)
1. a kind of LED display modules, it is characterised in that:
The LED display modules include wiring board, the positive LED component that is installed on wiring board, the drive for being installed on circuit back
Dynamic device, the base's coat for covering LED component and driving element, the functional layer on base's coat;
Wherein described base's coat be coat high factor optical conductive filler material in the LED component and driving element and
The layering of formation;
The wherein described functional layer is one layer or at least two layers in blue light protective layer, sharpening layer or sealer.
2. LED display modules according to claim 1, it is characterised in that:
The blue light protective layer is on base's coat, and the sharpening layer is on the blue light protective layer, the table
Face protective layer is on the sharpening layer;Or,
The sharpening layer is on base's coat, and the blue light protective layer on the sharpening layer, protect by the surface
Sheath is on the blue light protective layer.
3. LED display modules according to claim 1, it is characterised in that:
The blue light protective layer sharpens the layering that layer is formed for one layer of Nano grade crystal factor optical material of plating;
The sealer is one layer of layering for resisting hard optical film to be formed of plating.
4. LED display modules according to claim 1, it is characterised in that:
The thickness of base's coat is 0.1mm-8.0mm;Or,
The thickness of the blue light protective layer is 0.1mm-5mm;Or,
The thickness for sharpening layer is 0.1mm-5mm;Or,
The thickness of the sealer is 0.1mm-5mm.
5. LED display modules according to claim 1, it is characterised in that:
Optical prism crystal fine particle is covered in emitter surface by the sharpening layer, and optical prism crystal fine particle will be single
One light refraction forms multilayer diffusing reflection and point light source is made to become area source.
6. LED display modules according to claim 5, it is characterised in that:
The sharpening layer is often to set area in emitter surface to set number optical prism crystal by setpoint distance ordered arrangement
Particulate.
7. LED display modules according to claim 5, it is characterised in that:
The sharpening layer prints on optical prism crystal fine particle or is carved with anti-fake setting identification.
8. according to claim 1 as 7 any one of them LED display modules, it is characterised in that:
The high factor optical conductive filler material includes epoxy resin or polyurethane;Or,
The high factor optical conductive filler material includes epoxy resin or polyurethane, further includes scattering diluent, fire retardant or black
One kind in agent or at least two.
9. a kind of mosaic display screen, it is characterised in that:
Including splicing framework and such as 1 to 8 any one of them LED display modules of the claims;
The LED display modules are at least two;
LED display modules contiguous concatenation in the joint frame body, and be fixed in the joint frame body.
10. mosaic display screen according to claim 9, it is characterised in that:
The mosaic display screen is spliced by the LED display modules of multiple identical sizes or different sizes.
11. mosaic display screen according to claim 9, it is characterised in that:
The mosaic display screen is tv display screen, and the thickness of base's coat of the LED display modules is 0.1mm-
5.0mm;Or,
The mosaic display screen is ground display screen, and the thickness of base's coat of the LED display modules is 0.5mm-
8mm;Or,
The mosaic display screen is minute surface display screen, and the thickness of base's coat of the LED display modules is 0.3mm-
5mm。
12. mosaic display screen according to claim 9, it is characterised in that:
The mosaic display screen is tv display screen, and the surrounding of the splicing framework is covered in the LED display modules splicing
Edge.
13. mosaic display screen according to claim 9, it is characterised in that:
The splicing framework is an independent frame structure or is made of multiple frame structures.
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CN111965891A (en) * | 2020-08-05 | 2020-11-20 | 武汉华星光电技术有限公司 | LED lamp panel, spliced LED lamp panel and display device |
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