CN110137220A - Micro- light emitting diode quantum dot display screen method for repairing and mending - Google Patents
Micro- light emitting diode quantum dot display screen method for repairing and mending Download PDFInfo
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- CN110137220A CN110137220A CN201910311388.XA CN201910311388A CN110137220A CN 110137220 A CN110137220 A CN 110137220A CN 201910311388 A CN201910311388 A CN 201910311388A CN 110137220 A CN110137220 A CN 110137220A
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- quantum dot
- emitting diode
- light emitting
- micro
- display screen
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention discloses a kind of method for repairing and mending of micro- light emitting diode quantum dot display screen, include mainly following step: removal Bragg reflecting layer (Distributed Bragg Reflector, DBR)；Fluorescent powder is inserted into vacant quantum dot；And Bragg mirror is laid with to cover micro- light emitting diode quantum dot of entire matrix arrangement.
Description
Technical field
The present invention is mainly to be to provide a kind of method for repairing and mending of display screen, especially a kind of micro- light emitting diode quantum dot
Be formed by the method for repairing and mending of display screen, specific field be have inside micro- light emitting diode quantum dot display screen some or
Repairing when certain micro- quantum dots break down and can not issue preset color.
Background technique
Sapphire group becomes aluminium oxide (A12O3) it is to be combined by three oxygen atoms and two aluminium atoms with covalent bond pattern,
Crystal structure is hexagonal lattice structure, and it is very wide that sapphire optics penetrates band, from black light (190 nanometers；Nm) infrared in
Line has good translucency, and has the features such as high velocity of sound, high temperature resistant, anticorrosive, high rigidity, fusing point high (20452 DEG C),
Therefore frequently as the baseplate material of photoelectric subassembly.
With regard to super brightness it is white/blue-ray LED quality depend on gallium nitride epitaxy (GaN) quality of materials, therefore with used
Sapphire substrate suface processing quality it is related, the face sapphire (monocrystalline A12O3) C and III-V and II-VI group depositing film it
Between lattice constant mismatch rate it is small, while meeting the requirement resistant to high temperature of GaN epitaxial growth process, therefore sapphire substrate becomes production
The critical material of QLED display screen.
QLED is writing a Chinese character in simplified form for " Quantum Dot Light Emitting Diode ", i.e. light emitting diode with quantum dots, also
The sub- display technology of ponderable quantity.This is a new technique between liquid crystal and OLED, core technology Quantum
Dots (quantum dot).Quantum dot be some naked eyes can not see, extremely small semiconductor nanocrystal, be a kind of partial size not
The particle of 10 nanometers of foot.Quantum dot QLED display technology is that feux rouges and green is excited by blue led light source exposure point
Light, so that consummate picture be presented.
Quantum dot QLED display technology mainly includes light emitting diode with quantum dots display technology (QLED) and quantum dot backlight
Source technology (QD-BLU), quantum dot have the characteristics of luminescence, and the quantum dot in quantum dot film (QDEF) is in blue led backlight illumination
Lower generation feux rouges and green light, and be mixed together to obtain white light with remaining blue light through film, to promote entire back light system
Illumination effect.
Quantum dot QLED display technology has its distinguished characteristic, and whenever the stimulation by light or electricity, quantum dot will
Coloured light is issued, the color of light is determined by the composition material and size shape of quantum dot, this characteristic enables quantum dot
Enough change the light color that light source issues.Therefore, quantum dot QLED display technology accuracy on color displays is high, and picture is imaged
Also more stable.
The advantageous advantage of quantum dot QLED display technology enables TV brightness effectively promote 30~40%, back light source system
In the case that efficiency of color conversion is substantially improved, the color more beautiful of picture, the features such as taking into account energy conservation and environmental protection, picture brightness, color
Color purity is 2 times of WLED back light system or so, and performance boost is fairly obvious.In view of the physical characteristic of liquid crystal technology is congenital
Deficiency, quantum dot QLED display technology can bring so many revolution, be the primary great breakthrough of liquid crystal technology.
It, also will be so that manufacturing cost be lower using quantum dot QLED display technology except display advantage.The technology is will to measure
The optical material of son point is put between backlight and liquid crystal display panel, colour gamut can be made to meet or exceed the level of OLED, or even can
To save the polaroid of light source side, be effectively reduced the manufacture of liquid crystal display product (for LCD TV and liquid crystal display) at
This.For the price that current middle and high end display screen remains high, the strong quantum dot QLED display technology of cost low performance is more
Meet the demand of consumption market.
In addition, the blue light that LED light source issues can be fully converted to white light (traditional YAG by quantum dot QLED display technology
Fluorophor can only absorb a part), it means that under same brightness, blue light needed for quantum dot QLED is less, in electric light
The electric power needed in conversion is also less, and the power consumption assembly of back light system is effectively reduced.From the foregoing, it will be observed that quantum dot display technology becomes
The product of public hobby has been within sight in the market.
Another kind institute's technology well known in quantum dot QLED display technology is referred to as quantum confined Stark effect
It answers, also that is, electronics can only be run on specific track around atom, each track is associated with certain energy grade.
When the light with appropriate energy (or appropriate wavelength) is injected.Electron absorption light, is closed on to transit to using its energy
Track on.The absorbent wavelength of light in electron institute can change using powerful electric field to atom.This phenomenon is by people
Class is known more than a century, referred to as Stark effect.Stark effect makes material open or close one in engineer
When electric field, the light of specific wavelength can be shielded as shutter, and can absorb various light.
Stark effect is generated in atom, required voltage is very high so that can not use in the chips.But
In some thin thin materials, a kind of strong and sensitive Stark effect, referred to as quantum confined stark effect can produce,
This is betided under acceptable voltage.The high-end telecommunication equipment of many today is come using the thin material that can generate this effect
Data are transmitted in a fiber.When external electric field acts perpendicularly to quantum well material, generate quantum confined stark effect (QCSE),
With the increase in outfield, ABSORPTION EDGE is bigger to low energy direction mobile (red shift).
In recent years, novel luminescent material quantum dot development is very fast, since quantum dot has the luminous spy of fine extinction-
Property, so can be by quantum point grain diameter size is regulated and controled in experiment, to change different emission wavelengths.Other advantage is then to shine partly
High wide very narrow, high efficiency and comparatively wide absorption spectrum, therefore possess very high color purity and saturation degree.
In conjunction with above-mentioned advantage, quantum dot, which is considered potential, can replace fluorescent powder conversion of white light light emitting diode now
As backlight material of new generation, display is reached and possesses wider colour gamut and outstanding color representation.It is mainly applied at present
Technology is rotary coating, misty spraying and Printing techniques, but encounters mutual pollution problem between uniformity and each color, therefore
It solves redgreenblue separation and applies to industrial important issue as light emitting diode with quantum dots with each Color uniformity.
It is currently to spray redgreenblue quantum using Pulse Spraying technology to improve distinctiveness between uniformity and color
Dot fluorescent powder applies in white light emitting diode, and advantage is that spraying area area is big, high uniformity and can control each thickness
Degree.And it is roughened degree using afm scan spraying area, discovery surface undulation is about within 1nm,
Even property is very good.The distinctiveness part between color utilizes polydimethylsiloxane (PDMS) film of high-penetration rate
As intermediate interlayer, quantum dot is separated to improve colouring discrimination and reduce quantum dot self aggregation effect.In addition, shining to improve
Efficiency is arranged in pairs or groups Bragg reflection structure (DBR), increases the reflection of ultraviolet light, to prevent unwanted light from appearing, and whereby to mention
High redgreenblue quantum dot brightness.In the part color saturation (NTSC), range can be promoted to 120%；Then, in conjunction with purple
Outer light-emitting diode becomes light emitting diode with quantum dots component.
Spearhead has been aimed at the system of quantum dot liquid crystal display (QD-LCD) by many illuminations or image industry at present
Make.And as well known to everybody, the pixel in LCD display is to arrange according to certain mode, and do not have nearly all
Any exception, and the application of LCD has also been incorporated already among the life of the general common people；It such as is tv display screen, prison
Even controlling indoor screen ... is Mobile phone screen etc., all show that LCD is indispensable in life.
And the problem of working as QD-LCD and gradually research and develop, and when being on the waiting list for existing LCD display, will necessarily encountering, just exists
Solution when some point or certain points in the picture element matrix when inside break down.Current LCD display
It life cycle rough estimate about 3~5 years, later, that is, accuses and dies, user has to replacement one.This in mass selling and
For the liquid crystal display for causing price not expensive, one strictly can be directly replaced；However, since QD-LCD is to be in grind
Hair stage, and also do not enter volume production, therefore its price is not cheap, so that foring a QD-LCD screen, and this screen
When curtain breaks down, directly replaces a new QD-LCD screen and seem and departing from the consideration in cost-effectiveness.
Also therefore inventor developed based on above-mentioned reason it is a kind of micro- with novelty and industrial applicability
Light emitting diode quantum dot display screen method for repairing and mending/structure.
Summary of the invention
The main purpose of the present invention is to be to provide a kind of micro- light emitting diode quantum dot display screen method for repairing and mending, is packet
A substrate has been included, and has formd a plurality of quantum dots arranged in arrays on the substrate one side, and in each quantum dot
In be respectively to be filled with the fluorescent powder of Red, Blue, Green, and form a single light emitting diode；In particular, at this
Inventing on a kind of provided substrate of micro- light emitting diode quantum dot display screen is to have a plurality of micro- hairs arranged in arrays
Optical diode quantum dot is also to be filled with the quantum dot of fluorescent powder, and each quantum dot is independent after being activated
Light after issuing design.Furthermore in the top of these light emitting diode quantum dots, then be sticked have one layer will be unwanted ultraviolet
The Bragg reflecting layer (Distributed Bragg Reflector, DBR) that light is reflected back.
The side of this light emitting diode quantum dot slightly can be with odd column, odd-numbered line, even column or even number line
Mode arranges out vacant quantum dot；That is each micro- light emitting diode quantum dot side for being filled with fluorescent powder just has two
A vacant quantum dot, also that is, vacant quantum dot can the sandwiched one micro- light emitting diode quantum dot for being filled with fluorescent powder two-by-two.
Meanwhile vacant quantum dot, can be position the left and right for the micro- light emitting diode quantum dot for being filled with fluorescent powder or up and down.
Micro- light emitting diode quantum dot by substrate provided by the present invention, and on the substrate and its two
The vacant quantum dot of side, the method for repairing and mending of micro- light emitting diode quantum dot display screen provided by the present invention are in micro- hair
A certain or certain quantum dot in optical diode quantum dot display screen breaks down because of accident and can not issue scheduled light
When the method for repairing and mending implemented, and the method includes following step:
It removes Bragg reflecting layer (Distributed Bragg Reflector, DBR)；
Fluorescent powder is inserted into vacant quantum dot；And
Bragg reflecting layer is laid with to cover micro- light emitting diode quantum dot of entire matrix arrangement.
Another object of the present invention is that method used in fluorescent powder filling step therein is spin coating.
Another object of the present invention be wherein remove Bragg reflecting layer (Distributed Bragg Reflector,
DBR method) is using laser.
The design of another vacant quantum dot then can be under the structure of original micro- light emitting diode quantum dot, by script
Light-emitting area halves；That is, the fluorescent powder in each micro- light emitting diode quantum dot only inserts the amount of half, and the other half
Area then gives vacant；By this structure, implementation steps of the invention be include following step:
Remove Bragg reflecting layer；
Fluorescent powder is inserted into vacant quantum dot；And
Bragg reflecting layer is laid with to cover micro- light emitting diode quantum dot of entire matrix arrangement.
It follows that the implementation steps of the invention to be stated are phytyls in micro- light emitting diode quantum dot display screen
With the presence of vacant micro- light emitting diode quantum dot in micro- light emitting diode, regardless of vacant micro- light emitting diode above-mentioned
The position of quantum dot, it is only necessary to pay attention to it and has been filled with the micro- light emitting diode quantum dot relativeness of fluorescent powder, it is also that is, vacant
Micro- light emitting diode quantum dot must be close to have been filled with the micro- light emitting diode quantum dot of fluorescent powder, meanwhile, each has
The quantum dot side of fluorescent powder filling has at least one vacant quantum dot.
Accordingly, another object of the present invention be to provide a kind of micro- light emitting diode quantum dot display screen quantum dot and
The arrangement of vacant quantum dot, wherein the vacant quantum dot and to be filled between the quantum dot of fluorescent powder be mutual corresponding
Arrangement.
Another object of the present invention is then that the vacant quantum dot side centainly has a quantum dot for being filled with fluorescent powder.
Another object of the present invention is then the arrangement mode of the vacant quantum dot and the quantum dot phase for being filled with fluorescent powder
Together.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of substrate solid graph structure of micro- light emitting diode quantum dot display screen provided by the present invention.
Fig. 2 is that the perspective view for having fences is provided on the substrate of the micro- light emitting diode quantum dot display screen of the present invention.
Fig. 3 is on the substrate of the micro- light emitting diode quantum dot display screen of the present invention using separating for fences and by each point
The quantum dot left is coated with the stereoscopic schematic diagram of fluorescent powder.
Fig. 4 is the quantum dot in the micro- light emitting diode quantum dot display screen of the present invention after having inserted fluorescent powder, still specially
There are the stereoscopic schematic diagrams of vacant quantum dot on ground.
Fig. 5 inserts fluorescent powder in part for the quantum dot in the micro- light emitting diode quantum dot display screen of the present invention, and partly
In the case of then specially vacant, a reflecting layer is attached to the top of entire display screen, all quantum dots are covered vertical
Body schematic diagram.
Fig. 6 is quantum dot in a kind of micro- light emitting diode quantum dot display screen provided by the present invention internal one
When failure has occurred and can not normally issue scheduled light in a or some quantum dots, prepare the first step of repairing.
Fig. 7 is quantum dot in a kind of micro- light emitting diode quantum dot display screen provided by the present invention internal one
After failure has occurred in a or some quantum dots, fluorescent powder is coated on the stereoscopic schematic diagram in original vacant quantum dot.
Fig. 8 is quantum dot in a kind of micro- light emitting diode quantum dot display screen provided by the present invention internal one
After failure has occurred in a or some quantum dots and repairs, a reflecting layer is covered in entire micro- light emitting diode quantum dot and is shown
The stereoscopic schematic diagram of display screen.
Specific embodiment
The present invention is primarily directed to a kind of micro- light emitting diode quantum dot display screen, is to have sky in one kind in particular
Set the method for repairing and mending of micro- light emitting diode quantum dot display screen of quantum dot.As previously mentioned, current quantum dot display screen technology
It is gradually mature, since it is shining highly and is all surpassing current liquid crystal display on esolving degree, so it is as substitution
The epoch of present liquid crystal display are also within sight.And it is a plurality of due to having in micro- light emitting diode quantum dot display screen
The characteristic of quantum dot, and also all there is the fluorescent powder independently of other quantum dots in each quantum dot, so it provides use
Person one when at least one quantum dot with fluorescent powder filling breaks down can display screen one repairing to failure machine
Meeting.
The main purpose of the present invention is that there is provided micro- light emitting diode quantum dots that a kind of inside has vacant quantum dot
The method for repairing and mending of display screen, which is characterized in that include following step:
Remove reflecting layer；
Fluorescent powder is coated in the vacant quantum dot close to failure quantum dot；
Reflecting layer is covered to all quantum dots.
It is aobvious that another object of the present invention is to provide a kind of micro- light emitting diode quantum dot of the inside with vacant quantum dot
The method for repairing and mending of display screen, wherein each vacant quantum dot is arranged in arrays.
It is aobvious that another object of the present invention is to provide a kind of micro- light emitting diode quantum dot of the inside with vacant quantum dot
The method for repairing and mending of display screen, wherein each vacant quantum dot is arranged close to each quantum dot with fluorescent powder.
It is aobvious that another object of the present invention is to provide a kind of micro- light emitting diode quantum dot of the inside with vacant quantum dot
The method for repairing and mending of display screen, wherein removing the reflecting layer is completed with laser.
It is aobvious that another object of the present invention is to provide a kind of micro- light emitting diode quantum dot of the inside with vacant quantum dot
The method for repairing and mending of display screen, wherein the mode for being coated with fluorescent powder is spin coating.
It is described in detail
Firstly, please referring to shown in Fig. 1 and Fig. 2, what is presented is one substrate 10 of leading preparation, it is preferable that the base
Plate 10 is for a sapphire substrate；In particular, the substrate 10 is a substrate 10 that rough processing procedure is substantially completed, because
And the structure showed is that have a plurality of chips in array arrangement.
It is explicitly separated in order to be made between micro- light emitting diode quantum dot, then prepares a fence 20 again；This fence
20 are to be separated by each self-aligned block space 21 of each chip 11.Described in being placed in the fence 20
The top of substrate 10, and each block space 21 is each self-aligned after each chip 11 on the substrate 10, using controlling
Have and in a manner of spin coating by fluorescent powder, it is e.g. red, it is coated on each block space 21, this is i.e. as shown in Figure 3.
It should be noted that please referring to shown in Fig. 4, wherein be in institute in coating fluorescent powder when each block space 21
A plurality of vacant quantum dots 22 are reserved in the block space 21 stated；So that being made in entire micro- light emitting diode quantum dot display screen
Out after complete micro- luminescent quantum dot, still there are a plurality of vacant quantum dots 22 in micro- light emitting diode quantum dot of Yu Suoshu.
And, each block space 21 (quantum dot) side for being filled with fluorescent powder all has at least one vacant quantum dot as seen from the figure
22.And each vacant quantum dot 22 is linearly to arrange, and can be arranged in continuity, or arrange in discontinuity；In this implementation
In example, what is presented is successional arrangement.
It please refers to shown in Fig. 5, wherein visible and predetermined having inserted the block space 21 of all predetermined filling fluorescent powders
The fluorescent powder of amount, and when completing most production of micro- light emitting diode quantum dot display screen, a last step is then by one
The reflecting layer 30 of layer attaches, and is covered in the fence 20, and all quantum dots are covered in below, entire to complete
The production of micro- light emitting diode quantum dot display screen.Later, user can intensify micro- light emitting diode quantum dot display screen,
To issue scheduled light, to form the picture to be showed.
It please refers to shown in Fig. 6, Fig. 7, a certain or certain quantum in micro- light emitting diode quantum dot display screen above-mentioned
Point has occurred failure and can not issue scheduled light, and when needing repairing, and user will be firstly the need of will be covered on fence 20
The reflecting layer 30 of side is removed, and is shown with exposing the micro- light emitting diode quantum dot being covered in below the reflecting layer 30 originally
The quantum dot and vacant quantum dot 22 of fluorescent powder are filled in screen.Later, then fluorescent powder is filled out by jig and in a manner of spin coating
Enter the vacant quantum dot 22 closest to failure quantum dot side, the effect of to substitute failure quantum dot；At this point, using jig
In filling fluorescent powder when vacant quantum dot 22, the vacant quantum dot 22 closest to the prosperous sub- point side of failure can be only inserted, also
Primary being filled of all vacant quantum dots can be finished.
As shown in figure 8, a reflecting layer 30 to be then attached to the fence again after repairing the quantum dot at failure
20, all quantum dots are covered in below, that is, complete the present invention micro- light emitting diode quantum dot of purpose-above-mentioned
The method for repairing and mending of display screen.
It is worth noting that, above-mentioned explanation is only a specific embodiment of the invention, explanation therein can not be limited
Protection scope of the present invention processed, for example, can be rectangular, triangle in hollow 21 appearance of block space of the fence, or
Any suitable shape.Although not showing above-mentioned shape in specific embodiments of the present invention, geometry appearance it is simple
After having read detailed description of the invention, self energy is made in the case where not departing from protection scope of the present invention and spirit for variation
The variation or modification stated.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (6)
1. a kind of micro- light emitting diode quantum dot display screen method for repairing and mending, wherein micro- light emitting diode quantum dot is shown
Screen is that have vacant quantum dot in wherein characterized by comprising
Remove reflecting layer；
Fluorescent powder is inserted into vacant quantum dot；And
Reflecting layer is laid with to cover entire micro- light emitting diode quantum dot.
2. micro- light emitting diode quantum dot display screen method for repairing and mending as described in claim 1, which is characterized in that described is vacant
Quantum dot is arranged in arrays.
3. micro- light emitting diode quantum dot display screen method for repairing and mending as described in claim 1, which is characterized in that the removal is anti-
The method for penetrating layer is to utilize laser.
4. micro- light emitting diode quantum dot display screen method for repairing and mending as described in claim 1, which is characterized in that the fluorescent powder
The method for inserting vacant quantum dot is spin coating.
5. micro- light emitting diode quantum dot display screen method for repairing and mending as described in claim 1, which is characterized in that described in each
Vacant quantum dot is to be close to the quantum dot with fluorescent powder filling.
6. micro- light emitting diode quantum dot display screen method for repairing and mending as described in claim 1, which is characterized in that each has
The quantum dot side of fluorescent powder filling has at least one vacant quantum dot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311388.XA CN110137220A (en) | 2019-04-18 | 2019-04-18 | Micro- light emitting diode quantum dot display screen method for repairing and mending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311388.XA CN110137220A (en) | 2019-04-18 | 2019-04-18 | Micro- light emitting diode quantum dot display screen method for repairing and mending |
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| CN110137220A true CN110137220A (en) | 2019-08-16 |
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ID=67570382
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| CN201910311388.XA Pending CN110137220A (en) | 2019-04-18 | 2019-04-18 | Micro- light emitting diode quantum dot display screen method for repairing and mending |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630350A (en) * | 2009-09-14 | 2012-08-08 | 塔工程有限公司 | Repair method and apparatus of light emitting diode using quantum dot coating |
| CN107735832A (en) * | 2015-06-05 | 2018-02-23 | 苹果公司 | The emission control device and method of display panel |
| CN108878469A (en) * | 2018-07-04 | 2018-11-23 | 南京大学 | Mixed type RGB micron openings LED array device based on III nitride semiconductor quantum dot and preparation method thereof |
| CN109494235A (en) * | 2017-09-11 | 2019-03-19 | 维耶尔公司 | The maintenance technique of miniature LED component and array |
-
2019
- 2019-04-18 CN CN201910311388.XA patent/CN110137220A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630350A (en) * | 2009-09-14 | 2012-08-08 | 塔工程有限公司 | Repair method and apparatus of light emitting diode using quantum dot coating |
| CN107735832A (en) * | 2015-06-05 | 2018-02-23 | 苹果公司 | The emission control device and method of display panel |
| CN109494235A (en) * | 2017-09-11 | 2019-03-19 | 维耶尔公司 | The maintenance technique of miniature LED component and array |
| CN108878469A (en) * | 2018-07-04 | 2018-11-23 | 南京大学 | Mixed type RGB micron openings LED array device based on III nitride semiconductor quantum dot and preparation method thereof |
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