CN209104189U - A kind of width colour gamut COB device - Google Patents
A kind of width colour gamut COB device Download PDFInfo
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- CN209104189U CN209104189U CN201821575934.8U CN201821575934U CN209104189U CN 209104189 U CN209104189 U CN 209104189U CN 201821575934 U CN201821575934 U CN 201821575934U CN 209104189 U CN209104189 U CN 209104189U
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Abstract
The utility model relates to a kind of wide colour gamut COB devices, and the packaging plastic of the luminescence unit and all luminescence units of covering on the substrate is located at including substrate, at least three；The luminescence unit includes at least one red light-emitting unit being located on the substrate, at least one is located at the green luminescence unit on the substrate and at least one is located at the white-light emitting unit on the substrate；The white-light emitting unit includes the phosphor powder layer of the upside-down mounting blue chip being installed on the substrate and the covering upside-down mounting blue chip；The red light-emitting unit, green luminescence unit and the interlaced setting of white-light emitting unit.Width colour gamut COB device provided by the utility model, the fluorescence coating of the white-light emitting unit is set to around the upside-down mounting blue chip by way of dispensing or spraying, the white-light emitting cellular manufacture simple process obtained using this kind of mode, production cost is low, does not need high precision manipulation.
Description
Technical field
The utility model relates to LED encapsulation technology field more particularly to a kind of wide colour gamut COB devices.
Background technique
LED as light source of new generation, have energy-saving and environmental protection, safety, service life length, low-power consumption, low-heat, high brightness, waterproof,
The features such as miniature, shockproof, easy light modulation, light beam concentration, easy maintenance, it can be widely applied to various instructions, display, decoration, back
The fields such as light source, general lighting.
COB light source encapsulation, i.e. chip on board encapsulate, and are one of bare chip mounting technologies, LED chip is mounted on printed wire
On plate, the electrical connection of chip and substrate is realized with lead sewing method, and is covered with resin to ensure reliability.With COB
The extensive use of illuminating product needs to change the colour temperature of COB illuminating product, existing energy for some special application places
Enough change colour temperature COB device, usually there are two types of, one is encapsulation two kinds of different-colours module, change the defeated of two modules
Out than changing colour temperature, the colour temperature change range of this COB device is small, is not able to satisfy the market demand.Another kind is in COB device
Portion encapsulates RGW chip, encapsulates three kinds of chips in COB device inside, the power density of product is smaller, and white chip is usually used
The production of CSP technology, high production cost, and the poor reliability of COB device, are unable to satisfy the market demand.It is therefore desirable to propose one
The COB device of the novel wide colour gamut of kind, solves the above problems.
The utility model proposes a kind of COB device of wide colour gamut, the white chip of device inside is flip-chip, then is being fallen
Fluorescence coating is set around cartridge chip, is then encapsulated again, the high reliablity of COB device, power density is big.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of COB device of wide colour gamut, the white light cores of device inside
Piece is flip-chip, then fluorescence coating is arranged around flip-chip, is then encapsulated again, the high reliablity of COB device, and power is close
Degree is big.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of wide colour gamut COB devices, including substrate, at least three
The packaging plastic of a luminescence unit and all luminescence units of covering on the substrate；
The luminescence unit include at least one red light-emitting unit being located on the substrate, at least one be located at it is described
Green luminescence unit on substrate and at least one be located at the white-light emitting unit on the substrate；
The white-light emitting unit includes that the upside-down mounting blue chip being installed on the substrate and the covering upside-down mounting are blue
The phosphor powder layer of optical chip；
The red light-emitting unit, green luminescence unit and the interlaced setting of white-light emitting unit, and adjacent three
It include a red light-emitting unit, a green luminescence unit and a white light hair in the luminescence unit
Light unit.
Preferably, equally distributed fluorescent powder is additionally provided with inside the packaging plastic, the reference color temperature of the fluorescent powder is
1000K-3000K。
Preferably, route is provided on the substrate, the route is at least provided with three mutually independent sub-line roads；
Wherein, a strip route is to realize between the red light-emitting unit and red light-emitting unit and extraneous power supply
Between electrical connection；
One strip route is to realize the electricity between green luminescence unit and between green luminescence unit and extraneous power supply
Connection；
One strip route is to realize the electricity between white-light emitting unit and between white-light emitting unit and extraneous power supply
Connection.
Preferably, the fluorescence coating of the white-light emitting unit is set to the upside-down mounting blue light by way of dispensing or spraying
Around chip.
Preferably, the gap between the adjacent luminescence unit is 0.1-0.2mm.
Preferably, the red light-emitting unit is vertical structure red light chips；Alternatively,
The red light-emitting unit includes the red light fluorescent powder around blue chip and the covering blue chip.
Preferably, the green luminescence unit is formal dress green light chip；Alternatively,
The green luminescence unit includes the green light fluorescent powder around blue chip and the covering blue chip.
Preferably, the packaging plastic is covered as silica gel or epoxy resin.
Preferably, the substrate is ceramic substrate or metal substrate.
Compared with prior art, the utility model has the beneficial effects that:
1, wide colour gamut COB device provided by the utility model, the fluorescence coating of the white-light emitting unit pass through dispensing or spray
The mode of painting is set to around the upside-down mounting blue chip, the white-light emitting cellular manufacture technique letter obtained using this kind of mode
Single, production cost is low, does not need high precision manipulation；On the other hand, the chip in white-light emitting unit is flip-chip, thermally conductive
Performance is good, and physical strength is high, improves the reliability of COB device.
2, wide colour gamut COB device provided by the utility model, the red light-emitting unit, green luminescence unit and white light
The interlaced setting of luminescence unit, the light that the luminescence unit of each different colours issues can be sent out with the luminescence unit near it
Light out is mutually mixed, and light mixing includes a red light-emitting unit in adjacent three luminescence units, described in one more evenly
Green luminescence unit and a white-light emitting unit, so that each white-light emitting unit is capable of setting adjacent thereto
The light that red light-emitting unit and green luminescence unit issue is mutually mixed, and is issued the light of preset color temperature, is guaranteed entire COB device
Light-emitting uniformity.
3, wide colour gamut COB device provided by the utility model, in order to further increase the light-emitting uniformity of COB device, institute
It states and is additionally provided with equally distributed fluorescent powder inside packaging plastic, the reference color temperature of the fluorescent powder is 1000K-3000K, for realizing
Luminosity compensation improves the uniformity of COB device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wide colour gamut COB device of the utility model；
Fig. 2 is the schematic diagram of the section structure of the wide colour gamut COB device of the utility model.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing with it is excellent
Selecting embodiment, the utility model is described in further detail.
As shown in Figs. 1-2, a kind of wide colour gamut COB device is located at shining on the substrate 1 including substrate 1, at least three
The packaging plastic 2 of unit and all luminescence units of covering；
The luminescence unit include at least one red light-emitting unit 3 being located on the substrate 1, at least one be located at institute
It states the green luminescence unit 4 on substrate 1 and at least one is located at the white-light emitting unit 5 on the substrate 1；
The white-light emitting unit 5 includes the upside-down mounting blue chip 51 being installed on the substrate and the covering upside-down mounting
The phosphor powder layer 53 of blue chip 51；
The red light-emitting unit 3, green luminescence unit 4 and the interlaced setting of white-light emitting unit 5, and adjacent three
It include that a red light-emitting unit 3, the one green luminescence unit 4 and one are described white in a luminescence unit
Light luminescence unit 5.
The substrate 1 is used to install the red light-emitting unit 3, green luminescence unit 4 and white-light emitting unit 5,
It can be ceramic substrate, or metal substrate selects the type of the substrate 1 with specific reference to actual needs.
In order to realize the red light-emitting unit 3, green luminescence unit 4 and white-light emitting unit 5 between each other and
Being electrically connected between extraneous power supply is provided with route on the substrate 1, and the route is mutually independent at least provided with three
Sub-line road, wherein a strip route is to realize between the red light-emitting unit 3 and red light-emitting unit 3 and extraneous power supply
Between electrical connection, a strip route to realize between green luminescence unit 4 and green luminescence unit 4 and extraneous power supply it
Between electrical connection, a strip route to realize between white-light emitting unit 5 and white-light emitting unit 5 and extraneous power supply between
Electrical connection being capable of independent control green light to guarantee that the route is capable of the output intensity of independent control red light-emitting unit 3
The output intensity of luminescence unit 4 is also capable of the output intensity of independent control white-light emitting unit 5, realizes the purpose for adjusting colour temperature.
The red light-emitting unit 3 is used to adjust the colour temperature of COB device, the demand of the wide colour gamut for meeting COB device,
It can be vertical structure red light chips, also may include the feux rouges fluorescence around blue chip and the covering blue chip
The structure of the red light-emitting unit 3 is arranged with specific reference to actual needs in powder, in the present embodiment, the red light-emitting unit 3
For vertical structure red light chips.
The green luminescence unit 4 is used to adjust the colour temperature of COB device, the demand of the wide colour gamut for meeting COB device,
It can be formal dress green light chip, also may include the green light fluorescent powder around blue chip and the covering blue chip,
With specific reference to actual needs, the structure of the green luminescence unit 4 is set, in the present embodiment, the green luminescence unit 4 is positive
Fill green light chip.
The white-light emitting unit 5 issues white light, for realizing illumination comprising the upside-down mounting being installed on the substrate 1
The fluorescence coating 52 of blue chip 51 and the covering upside-down mounting blue chip 51, the upside-down mounting blue chip 51 is by the fluorescence coating
52 surround, and the fluorescent powder inside blue light excitation fluorescence coating issued generates yellow light, to form mixed light white light.
The fluorescence coating 52 of the white-light emitting unit 5 is set to the upside-down mounting blue chip by way of dispensing or spraying
Around 51,5 simple production process of white-light emitting unit obtained using this kind of mode, production cost is low, does not need high-precision and grasps
Make；On the other hand, white-light emitting unit 5 is flip-chip, and good heat conductivity, physical strength is high, and improve COB device can
By property.
The red light-emitting unit 3, green luminescence unit 4 and the interlaced setting of white-light emitting unit 5, each difference
The light that the light that the luminescence unit of color issues can be issued with the luminescence unit near it be mutually mixed, light mixing more evenly, phase
It include that a red light-emitting unit 3, the one green luminescence unit 4 and one are described white in adjacent three luminescence units
Light luminescence unit 5, so that each white-light emitting unit 5 is capable of the red light-emitting unit 3 and green luminescence of setting adjacent thereto
The light that unit 4 issues is mutually mixed, and is issued the light of preset color temperature, is guaranteed the light-emitting uniformity of entire COB device.
Width colour gamut COB device provided by the utility model, the red light-emitting unit 3 is vertical structure red light chips, green
Light luminescence unit 4 is formal dress green light chip, and the chip in white-light emitting unit 5 is flip-chip, so that chip on substrate 1
Density it is bigger, minimum has been accomplished into the gap between chip as far as possible, the gap between adjacent light-emitting units be 0.1-
0.2mm improves the power density of COB device, and further improve COB device goes out luminous intensity.
The packaging plastic 2 covers all red light-emitting units 3, green luminescence unit 4 and white-light emitting unit 5, to
All luminescence units are protected, are silica gel or epoxy resin, in the present embodiment, the packaging plastic 2 is silica gel, for improving COB
The heat dissipation performance of device.
In order to further increase the light-emitting uniformity of COB device, it is additionally provided with inside the packaging plastic 2 equally distributed glimmering
Light powder, the reference color temperature of the fluorescent powder are 1000K-3000K, for realizing luminosity compensation, improve the uniformity of COB device.
Compared with prior art, the utility model has the beneficial effects that:
1, wide colour gamut COB device provided by the utility model, the fluorescence coating of the white-light emitting unit pass through dispensing or spray
The mode of painting is set to around the upside-down mounting blue chip, the white-light emitting cellular manufacture technique letter obtained using this kind of mode
Single, production cost is low, does not need high precision manipulation；On the other hand, the chip in white-light emitting unit is flip-chip, thermally conductive
Performance is good, and physical strength is high, improves the reliability of COB device.
2, wide colour gamut COB device provided by the utility model, the red light-emitting unit, green luminescence unit and white light
The interlaced setting of luminescence unit, the light that the luminescence unit of each different colours issues can be sent out with the luminescence unit near it
Light out is mutually mixed, and light mixing includes a red light-emitting unit in adjacent three luminescence units, described in one more evenly
Green luminescence unit and a white-light emitting unit, so that each white-light emitting unit is capable of setting adjacent thereto
The light that red light-emitting unit and green luminescence unit issue is mutually mixed, and is issued the light of preset color temperature, is guaranteed entire COB device
Light-emitting uniformity.
3, wide colour gamut COB device provided by the utility model, in order to further increase the light-emitting uniformity of COB device, institute
It states and is additionally provided with equally distributed fluorescent powder inside packaging plastic, the reference color temperature of the fluorescent powder is 1000K-3000K, for realizing
Luminosity compensation improves the uniformity of COB device.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (9)
1. a kind of width colour gamut COB device, which is characterized in that the luminescence unit being located on the substrate including substrate, at least three
And the packaging plastic of all luminescence units of covering；
The luminescence unit include at least one red light-emitting unit being located on the substrate, at least one be located at the substrate
On green luminescence unit and at least one be located at the white-light emitting unit on the substrate；
The white-light emitting unit includes the upside-down mounting blue chip being installed on the substrate and the covering upside-down mounting blue light core
The phosphor powder layer of piece；
The red light-emitting unit, green luminescence unit and the interlaced setting of white-light emitting unit, and described in adjacent three
It include a red light-emitting unit, a green luminescence unit and a white-light emitting list in luminescence unit
Member.
2. width colour gamut COB device according to claim 1, which is characterized in that be additionally provided with inside the packaging plastic uniformly
The fluorescent powder of distribution, the reference color temperature of the fluorescent powder are 1000K-3000K.
3. width colour gamut COB device according to claim 1, which is characterized in that be provided with route, the line on the substrate
Road is at least provided with three mutually independent sub-line roads；
Wherein, a strip route to realize between the red light-emitting unit and red light-emitting unit and extraneous power supply between
Electrical connection；
One strip route is to realize being electrically connected between green luminescence unit and between green luminescence unit and extraneous power supply；
One strip route is to realize being electrically connected between white-light emitting unit and between white-light emitting unit and extraneous power supply.
4. width colour gamut COB device according to claim 1, which is characterized in that the fluorescence coating of the white-light emitting unit is logical
The mode for crossing dispensing or spraying is set to around the upside-down mounting blue chip.
5. width colour gamut COB device according to claim 1, which is characterized in that the gap between the adjacent luminescence unit
For 0.1-0.2mm.
6. width colour gamut COB device according to claim 1, which is characterized in that the red light-emitting unit is vertical structure
Red light chips；Alternatively,
The red light-emitting unit includes the red light fluorescent powder around blue chip and the covering blue chip.
7. width colour gamut COB device according to claim 1, which is characterized in that the green luminescence unit is formal dress green light
Chip；Alternatively,
The green luminescence unit includes the green light fluorescent powder around blue chip and the covering blue chip.
8. width colour gamut COB device according to claim 1, which is characterized in that the packaging plastic is covered as silica gel or epoxy
Resin.
9. width colour gamut COB device according to claim 1, which is characterized in that the substrate is ceramic substrate or Metal Substrate
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575934.8U CN209104189U (en) | 2018-09-26 | 2018-09-26 | A kind of width colour gamut COB device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575934.8U CN209104189U (en) | 2018-09-26 | 2018-09-26 | A kind of width colour gamut COB device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104189U true CN209104189U (en) | 2019-07-12 |
Family
ID=67153596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821575934.8U Active CN209104189U (en) | 2018-09-26 | 2018-09-26 | A kind of width colour gamut COB device |
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| Country | Link |
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| CN (1) | CN209104189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568663A (en) * | 2019-09-05 | 2019-12-13 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| WO2021072962A1 (en) * | 2019-10-15 | 2021-04-22 | 广州光联电子科技有限公司 | Light-emitting light source having dual color temperatures or multiple color temperatures |
| CN114171644A (en) * | 2021-11-17 | 2022-03-11 | 广东索亮智慧科技有限公司 | Special application ultrahigh-density nanoscale heat-conducting full-color-gamut NK tile-level COB light source packaging technology |
-
2018
- 2018-09-26 CN CN201821575934.8U patent/CN209104189U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568663A (en) * | 2019-09-05 | 2019-12-13 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| WO2021072962A1 (en) * | 2019-10-15 | 2021-04-22 | 广州光联电子科技有限公司 | Light-emitting light source having dual color temperatures or multiple color temperatures |
| CN114171644A (en) * | 2021-11-17 | 2022-03-11 | 广东索亮智慧科技有限公司 | Special application ultrahigh-density nanoscale heat-conducting full-color-gamut NK tile-level COB light source packaging technology |
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| CP03 | Change of name, title or address |
Address after: 2 / F, building 2, 32 Keji West Road, Torch Development Zone, Zhongshan City, Guangdong Province, 528400 Patentee after: Toyo industry (Guangdong) Co.,Ltd. Address before: 528437 No.2 shop B2, building B, Yuhao Garden Phase 2, Torch Development Zone, Zhongshan City, Guangdong Province Patentee before: TOYO INDUSTRIAL LIGHTING (GUANGDONG) Co.,Ltd. |