CN207558790U - A kind of micro- LED chip of full spectrum white-light - Google Patents
A kind of micro- LED chip of full spectrum white-light Download PDFInfo
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- CN207558790U CN207558790U CN201721660043.8U CN201721660043U CN207558790U CN 207558790 U CN207558790 U CN 207558790U CN 201721660043 U CN201721660043 U CN 201721660043U CN 207558790 U CN207558790 U CN 207558790U
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Abstract
The utility model provides a kind of micro- LED chip of full spectrum white-light, is related to high-quality lighting technical field.The micro- LED chip of full spectrum white-light includes micro- LED array, sheet phosphor powder layer and chip electrode.Micro- LED array includes substrate and array micro- LED chip on substrate；Sheet phosphor powder layer includes phosphor powder layer and silica gel, and phosphor powder layer is consistent with micro- LED core chip size, and phosphor powder layer is coated in the surface of micro- LED chip, is isolated between two neighboring phosphor powder layer using silica gel；Chip electrode is drawn by micro- LED chip, electric connecting terminal of the chip electrode as micro- LED chip.The complete micro- LED chip light-emitting area of spectrum white-light is small, secondary light-distribution design is simple, colour temperature is controllable and spectrum is adjustable.
Description
Technical field
The utility model is related to high-quality lighting technical field, in particular to a kind of complete micro- LED core of spectrum white-light
Piece.
Background technology
Micro- LED technology is the LED array by integrating microsize to high-density on a single die, to realize LED's
Filming, microminiaturization and matrixing, the distance between pixel can reach micron level, and each pixel can addressing,
Individually shine.
At present, LED is widely used in common lighting area, is also used for specific illumination field, as mine lamp, projection lamp,
Stage lighting etc..It is well known that daylight is optimal full spectrum light source, gives comfortable feeling and connect by masses
By.And the lamps and lanterns product higher to sunlight degree of fitting rarely has appearance.Using the prior art, as blue chip yellow fluorescent powder,
The white light that ultraviolet chip indigo plant red green fluorescent powder or blue red-green glow chip hybrid obtain, there are spectrum is discontinuous, colour rendering is low, light
The shortcomings of effect difference, so as to affect the development of full spectrum lamps and lanterns.
Existing high-quality illumination LED device is mainly mixed by more fluorescent powders, more LED lamp beads mix, intelligent dimming control
The modes such as system improve illumination comfort level, but these methods have big mixing light source light-emitting area, secondary light-distribution difficult design, adjust
The problems such as photocontrol is complicated.
Utility model content
The utility model provides a kind of complete micro- LED chip of spectrum white-light, light-emitting area is small, secondary light-distribution design is simple,
Colour temperature is controllable and spectrum is adjustable.
The first technical solution provided by the utility model：
A kind of micro- LED chip of full spectrum white-light includes：
Micro- LED array, micro- LED array include micro- LED chip substrate and array on the substrate；
Sheet phosphor powder layer, the sheet phosphor powder layer include phosphor powder layer and silica gel, the phosphor powder layer with it is described micro-
LED core chip size is consistent, the phosphor powder layer be coated in micro- LED chip surface, the two neighboring phosphor powder layer it
Between using the silica gel be isolated；
Chip electrode, the chip electrode are drawn by micro- LED chip, and the chip electrode is as micro- LED core
The electric connecting terminal of piece.
Further, micro- LED chip is installed on the substrate using formal dress or the structure type of upside-down mounting.
Further, micro- LED chip is bar shaped, and multiple micro- LED chip parallel intervals are arranged in the substrate
On.
Further, the width range of micro- LED chip is 50 μm to 300 μm, the length range of micro- LED chip
It it is 250 μm to 1500 μm, the quantity of micro- LED chip is 5, the spacing range between two neighboring micro- LED chip
It is 30 μm to 50 μm.
Further, pad being provided on the substrate, each micro- LED chip is correspondingly arranged a pad,
The chip electrode is arranged on the pad.
Further, micro- LED chip is rectangular, and multiple micro- LED chips are arranged in the base in matrix form
On plate.
Further, micro- LED chip is placed with 5 rows 5 and arranges, and the side size range of micro- LED chip is 50 μm to 300
μm, the spacing range between adjacent rows or adjacent two row micro- LED chip is 30 μm to 50 μm.
Further, pad being provided on the substrate, micro- LED chip of often going is correspondingly arranged a pad,
Micro- LED chip described in each column is correspondingly arranged a pad, and the chip electrode is arranged on the pad.
Further, micro- LED chip be GaN purplish blue optical chips, peak wavelength ranging from 410nm to 470nm.
Second of technical solution provided by the utility model：
A kind of micro- LED chip of full spectrum white-light includes：
Micro- LED array, micro- LED array include micro- LED chip substrate and array on the substrate；
Sheet phosphor powder layer, the sheet phosphor powder layer include phosphor powder layer and silica gel, the phosphor powder layer with it is described micro-
LED core chip size is consistent, the phosphor powder layer be coated in micro- LED chip surface, the two neighboring phosphor powder layer it
Between using the silica gel be isolated；
Chip electrode, the chip electrode are drawn by micro- LED chip, and the chip electrode is as micro- LED core
The electric connecting terminal of piece, the chip electrode are arranged on above or below the substrate.
The advantageous effect of the micro- LED chip of full spectrum white-light provided by the utility model is：
(1) micro- LED array surface coating sheet phosphor powder layer, forms illuminated in combination, have size is small, light-emitting area is small,
The advantages that secondary light-distribution design is simple, light quality is high.
(2) different micro- LED chips is lighted by chip electrode, the full spectrum output of different white lights, Jin Ershi can be carried out
Existing adjustable color, the adjustable function of spectrum.
Description of the drawings
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of the micro- LED chip of full spectrum white-light that the utility model first embodiment provides.
Fig. 2 is the vertical profile structure diagram of Fig. 1.
Fig. 3 is that a kind of full spectrum white-light of the micro- LED chip of full spectrum white-light that the utility model first embodiment provides is defeated
Go out figure.
Fig. 4 is the full spectrum white-light of another kind for the micro- LED chip of full spectrum white-light that the utility model first embodiment provides
Output figure.
Fig. 5 is the structure diagram of the micro- LED chip of full spectrum white-light that the utility model second embodiment provides.
Fig. 6 is the vertical profile structure diagram of Fig. 5.
Fig. 7 is the structure diagram of the micro- LED chip of full spectrum white-light that the utility model 3rd embodiment provides.
Fig. 8 is the vertical profile structure diagram of Fig. 7.
Fig. 9 is the structure diagram of the micro- LED chip of full spectrum white-light that the utility model fourth embodiment provides.
Figure 10 is the vertical profile structure diagram of Fig. 9.
Icon：The micro- LED chip of the full spectrum white-lights of 1-；2- substrates；The micro- LED chips of 3-；4- phosphor powder layers；5- pads；6- cores
Plate electrode.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is to be appreciated that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship or
The utility model product using when the orientation usually put or position relationship or those skilled in the art usually understand
Orientation or position relationship are for only for ease of description the utility model and simplify description rather than instruction or imply signified set
Standby or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the utility model
Limitation.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and it is not intended that instruction or hint
Relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
First embodiment
It please refers to Fig.1 and Fig. 2, present embodiments provides a kind of micro- LED chip 31 of full spectrum white-light, full spectrum white-light is micro-
LED chip 31 includes micro- LED array, sheet phosphor powder layer and chip electrode 6.
Micro- LED chip 3 is installed on a substrate 2 using the structure type of formal dress.Micro- LED array includes substrate 2 and array
Micro- LED chip 3 on a substrate 2.Micro- LED chip 3 be GaN purplish blue optical chips, peak wavelength ranging from 410nm to 470nm.It is micro-
LED chip 3 is bar shaped, and multiple micro- 3 parallel interval of LED chip arrangements are on a substrate 2.
In the present embodiment, the quantity of micro- LED chip 3 is 5,5 micro- LED chips 3 number consecutively from left to right in Fig. 1
For (1), (2), (3), (4) and (5).The width range of micro- LED chip 3 is 50 μm to 300 μm, the length model of micro- LED chip 3
It is 250 μm to 1500 μm to enclose, and the spacing range between two neighboring micro- LED chip 3 is 30 μm to 50 μm.
Sheet phosphor powder layer includes phosphor powder layer 4 and silica gel, and phosphor powder layer 4 is consistent with micro- 3 size of LED chip, fluorescent powder
Layer 4 is coated in the surface of micro- LED chip 3, is isolated between two neighboring phosphor powder layer 4 using silica gel.The surface of micro- LED chip 3
Phosphor powder layer 4 is coated, illuminated in combination can be formed, with size is small, light-emitting area is small, secondary light-distribution design is simple, light quality
The advantages that high.
Phosphor powder layer 4 includes the fluorescent powder of different emission.The fluorescent powder of different emission includes yellow fluorescent powder
YAG:Ce, orange fluorescent powder (Sr, Ba) 3SiO5:Eu, yellowish green fluorescent powder (Y, Lu) 3Al5O12:Ce or red fluorescence powder
Sr2Si5N8:One or several kinds of combinations in Eu.
Chip electrode 6 is arranged on the top of substrate 2.Chip electrode 6 is drawn by micro- LED chip 3, and chip electrode 6 is as micro-
The electric connecting terminal of LED chip 3 so as to form independently addressable micro- LED array, can be grouped or single by chip electrode 6
The light on and off of a micro- LED chip 3 of control.Pad 5 is provided on substrate 2, each micro- LED chip 3 is correspondingly arranged a pad 5,
Chip electrode 6 is arranged on pad 5.
If light number (1), (3), (5) micro- LED chip 3, the full spectrum that the micro- LED chip 31 of full spectrum white-light exports
White light is as shown in Figure 3.If light number (2), (3), (5) micro- LED chip 3, the micro- LED chip 31 of full spectrum white-light exports
Full spectrum white-light is as shown in Figure 4.Fig. 3 and Fig. 4 illustrates different full spectrum white-light output.That is, will number (1),
(2), (3), (5) micro- LED chip 3 mode is lighted in different combinations, alternative excites corresponding fluorescent powder, realizes not
Same full spectrum white-light output, and then realize adjustable color, the adjustable function of spectrum.
The advantageous effect of the micro- LED chip 31 of full spectrum white-light provided in this embodiment is：
(1) characteristic of traditional LED has been adopted as heir, there is low-power consumption, high brightness, ultrahigh resolution and color saturation, react
Speed is fast, super power saving, lasts a long time, the advantages that efficiency is higher, moreover, its power consumption is about the 10% of LCD, OLED
50%.
(2) micro- LED array surface coating sheet phosphor powder layer, forms illuminated in combination, have size is small, light-emitting area is small,
The advantages that secondary light-distribution design is simple, light quality is high.
(3) different micro- LED chips 3 is lighted by chip electrode 6, the full spectrum output of different white lights can be carried out, and then
Realize adjustable color, the adjustable function of spectrum.
Second embodiment
Fig. 5 and Fig. 6 are please referred to, a kind of micro- LED chip 31 of full spectrum white-light is present embodiments provided, with first embodiment
Micro- 31 structure of LED chip of full spectrum white-light provided is close, and the difference lies in micro- LED chip 3 in the present embodiment is side
Shape.
Micro- LED chip 3 is installed on a substrate 2 using the structure type of formal dress.The wave band of micro- LED chip 3 for 445nm extremely
465nm.Multiple micro- LED chips 3 are arranged on a substrate 2 in matrix form.In the present embodiment, micro- LED chip 3 is placed with 5 rows 5
Row, 25 micro- LED chips 3 can according to modern times writing direction (from left to right, from top to bottom) be numbered (1),
(2)、····、(24)、(25).Will number (1), (2), (24), (25) micro- LED chip 3 according to different
Combination is lighted, and alternative excites corresponding fluorescent powder, realizes different full spectrum white-light output, and then realize that colour temperature can
It adjusts, the adjustable function of spectrum.
The side size range of micro- LED chip 3 is 50 μm to 300 μm, between adjacent rows or the micro- LED chip 3 of adjacent two row
Spacing range is 30 μm to 50 μm.
The top of substrate 2 is provided with pad 5, and chip electrode 6 is arranged on pad 5.Micro- LED chip 3 of often going is correspondingly arranged
One micro- LED chip 3 of 5,5 row of pad is correspondingly arranged 5 pads, 5,5 pads 5 and forms a group.The micro- LED chip 3 of each column corresponds to
One micro- LED chip 3 of the row of pad 5,5 of setting is correspondingly arranged 5 pads, 5,5 pads 5 and forms another group.In two groups of pads 5
Chip electrode 6 be then respectively served as the anode connection terminal of micro- LED chip 3 and cathode connecting pin, it is independently addressable so as to be formed
Micro- LED array.
In the other structures and technique effect and first embodiment of the micro- LED chip 31 of full spectrum white-light provided in this embodiment
Corresponding identical, which is not described herein again.
3rd embodiment
Fig. 7 and Fig. 8 are please referred to, a kind of micro- LED chip 31 of full spectrum white-light is present embodiments provided, with first embodiment
Micro- 31 structure of LED chip of full spectrum white-light provided is close, and the difference lies in micro- LED chip 3 in the present embodiment uses
The structure type installation of dress is on a substrate 2.
Micro- 3 upside-down mounting of LED chip is correspondingly arranged on pad 5, pad 5 on a substrate 2, in the lower section of each micro- LED chip 3
In be provided with chip electrode 6, in this way, chip electrode 6 is arranged on the lower section of substrate 2.By chip electrode 6, will number (1),
(2), (3), (5) micro- LED chip 3 mode is lighted in different combinations, alternative excites corresponding fluorescent powder, realizes not
Same full spectrum white-light output, and then realize adjustable color, the adjustable function of spectrum.
In the other structures and technique effect and first embodiment of the micro- LED chip 31 of full spectrum white-light provided in this embodiment
Corresponding identical, which is not described herein again.
Fourth embodiment
Fig. 9 and Figure 10 are please referred to, present embodiments provides a kind of micro- LED chip 31 of full spectrum white-light, is implemented with second
Micro- 31 structure of LED chip of full spectrum white-light that example provides is close, and the difference lies in micro- LED chip 3 in the present embodiment uses
The structure type installation of upside-down mounting is on a substrate 2.
Micro- 3 upside-down mounting of LED chip is correspondingly arranged on pad 5, pad 5 on a substrate 2, in the lower section of each micro- LED chip 3
In be provided with chip electrode 6, in this way, chip electrode 6 is arranged on the lower section of substrate 2.By chip electrode 6, will number (1),
(2), (24), (25) micro- LED chip 3 mode is lighted in different combinations, alternative excitation it is corresponding glimmering
Light powder realizes different full spectrum white-light output, and then realizes adjustable color, the adjustable function of spectrum.
In the other structures and technique effect and second embodiment of the micro- LED chip 31 of full spectrum white-light provided in this embodiment
Corresponding identical, which is not described herein again.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of micro- LED chip of full spectrum white-light, which is characterized in that the complete micro- LED chip of spectrum white-light includes：
Micro- LED array, micro- LED array include micro- LED chip substrate and array on the substrate；
Sheet phosphor powder layer, the sheet phosphor powder layer include phosphor powder layer and silica gel, the phosphor powder layer and micro- LED core
Chip size is consistent, and the phosphor powder layer is coated in the surface of micro- LED chip, is used between the two neighboring phosphor powder layer
The silica gel isolation；
Chip electrode, the chip electrode are drawn by micro- LED chip, and the chip electrode is as micro- LED chip
Electric connecting terminal.
2. the micro- LED chip of full spectrum white-light according to claim 1, which is characterized in that micro- LED chip uses formal dress
Or the structure type installation of upside-down mounting is on the substrate.
3. the micro- LED chip of full spectrum white-light according to claim 2, which is characterized in that micro- LED chip is bar shaped,
Multiple micro- LED chip parallel interval arrangements are on the substrate.
4. the micro- LED chip of full spectrum white-light according to claim 3, which is characterized in that the width model of micro- LED chip
It is 50 μm to 300 μm to enclose, and the length range of micro- LED chip is 250 μm to 1500 μm, and the quantity of micro- LED chip is 5
A, the spacing range between two neighboring micro- LED chip is 30 μm to 50 μm.
5. the micro- LED chip of full spectrum white-light according to claim 4, which is characterized in that pad is provided on the substrate,
Each micro- LED chip is correspondingly arranged a pad, and the chip electrode is arranged on the pad.
6. the micro- LED chip of full spectrum white-light according to claim 2, which is characterized in that micro- LED chip to be rectangular,
Multiple micro- LED chips are arranged on the substrate in matrix form.
7. the micro- LED chip of full spectrum white-light according to claim 6, which is characterized in that micro- LED chip is placed with 5
Row 5 arranges, and the side size range of micro- LED chip is 50 μm to 300 μm, adjacent rows or adjacent two row micro- LED chip it
Between spacing range be 30 μm to 50 μm.
8. the micro- LED chip of full spectrum white-light according to claim 7, which is characterized in that pad is provided on the substrate,
Micro- LED chip of often going is correspondingly arranged a pad, and micro- LED chip described in each column is correspondingly arranged a pad,
The chip electrode is arranged on the pad.
9. according to the micro- LED chip of the full spectrum white-light of claim 1 to 8 any one of them, which is characterized in that micro- LED core
Piece be GaN purplish blue optical chips, peak wavelength ranging from 410nm to 470nm.
10. a kind of micro- LED chip of full spectrum white-light, which is characterized in that the complete micro- LED chip of spectrum white-light includes：
Micro- LED array, micro- LED array include micro- LED chip substrate and array on the substrate；
Sheet phosphor powder layer, the sheet phosphor powder layer include phosphor powder layer and silica gel, the phosphor powder layer and micro- LED core
Chip size is consistent, and the phosphor powder layer is coated in the surface of micro- LED chip, is used between the two neighboring phosphor powder layer
The silica gel isolation；
Chip electrode, the chip electrode are drawn by micro- LED chip, and the chip electrode is as micro- LED chip
Electric connecting terminal, the chip electrode are arranged on above or below the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660043.8U CN207558790U (en) | 2017-12-01 | 2017-12-01 | A kind of micro- LED chip of full spectrum white-light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721660043.8U CN207558790U (en) | 2017-12-01 | 2017-12-01 | A kind of micro- LED chip of full spectrum white-light |
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| CN207558790U true CN207558790U (en) | 2018-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799510A (en) * | 2017-12-01 | 2018-03-13 | 广东省半导体产业技术研究院 | A kind of micro- LED chip of full spectrum white-light |
-
2017
- 2017-12-01 CN CN201721660043.8U patent/CN207558790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799510A (en) * | 2017-12-01 | 2018-03-13 | 广东省半导体产业技术研究院 | A kind of micro- LED chip of full spectrum white-light |
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Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of semiconductors, Guangdong Academy of Sciences Address before: 510000 363 Changxin Road, Tianhe District, Guangzhou, Guangdong. Patentee before: GUANGDONG INSTITUTE OF SEMICONDUCTOR INDUSTRIAL TECHNOLOGY |
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