CN208284188U - A kind of LED light-emitting character panel - Google Patents
A kind of LED light-emitting character panel Download PDFInfo
- Publication number
- CN208284188U CN208284188U CN201820768049.5U CN201820768049U CN208284188U CN 208284188 U CN208284188 U CN 208284188U CN 201820768049 U CN201820768049 U CN 201820768049U CN 208284188 U CN208284188 U CN 208284188U
- Authority
- CN
- China
- Prior art keywords
- luminescent characters
- phosphor powder
- region
- led light
- powder layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
- Led Device Packages (AREA)
Abstract
The utility model discloses a kind of LED light-emitting character panels, LED light-emitting character panel includes the substrate with luminescent characters region, and the region that luminescent characters region is made of the figure of all luminescent characters: the patterned surface of each luminescent characters includes LED chip, with a thickness of micron-sized phosphor powder layer in luminescent characters region；The periphery in luminescent characters region is provided with transparent box dam glue-line, is provided with transparent silicon glue-line in transparent box dam glue-line area defined.Above-mentioned technical proposal disclosed in the present application; using transparent box dam glue-line in luminescent characters area periphery box dam; by transparent silicon glue-line in luminescent characters region LED chip and phosphor powder layer protect; phosphor powder layer with a thickness of micron order; to reduce the difference of phosphor powder layer thickness between different luminescent characters to the greatest extent; phosphor powder layer is allowed to be evenly distributed in the surface of the figure of luminescent characters as far as possible; to reduce the colour temperature difference between luminescent characters to the greatest extent, reduce to influence caused by LED chip light extraction effect.
Description
Technical field
The utility model relates to LED technology fields, more specifically to a kind of LED light-emitting character panel.
Background technique
LED (Light Emitting Diode, light emitting diode) light-emitting character panel be carried out using LED chip as light source it is luminous
A kind of mark product, with its diversified color, uniformly beautiful illumination effect, it is energy-efficient, easy to install and use and
Liked by users.
Currently, existing LED light-emitting character panel is each letter for crossing LOGO with white box dam glue on naked substrate, then exist
Dispensing in box dam glue, being formed with a thickness of grade is fluorescent adhesive layer, i.e., each of existing LOGO letter periphery is all made of COB
In (Chip On Board, chip on board) prepared by box dam technique for dispensing glue, and LOGO is whole while luminous.It is testing
When whether the colour temperature of LOGO meets the requirements, due to each alphabetical while luminous, then the colour temperature of LOGO entirety may meet demand.But
It is that since each of LOGO letter is mutually indepedent, and the area of each letter is not identical, then in box dam process for dispensing glue
In dispensing amount unevenness may occur, i.e., the thickness of fluorescent adhesive layer will appear difference between letter, this allows for each alphabetical meeting
There is the difference of colour temperature, finally makes the light-out effect of each letter not identical, namely LED light-emitting character panel is made to show light
The problem of difference.
In conclusion that there are dispensing amounts is uneven, colour temperature difference occurs for existing LED light-emitting character panel, and then influence light-out effect
The problem of.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of LED light-emitting character panel, to solve existing LED light-emitting character panel
Existing dispensing amount is uneven, colour temperature difference occurs, and then the problem of influence LED light-emitting character panel light-out effect.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of LED light-emitting character panel, the substrate including having luminescent characters region, the luminescent characters region are all luminescent characters
The region that figure is constituted:
Wherein, the patterned surface of each luminescent characters includes LED chip, with a thickness of micron-sized in the luminescent characters region
Phosphor powder layer；
The periphery in the luminescent characters region is provided with transparent box dam glue-line, in the transparent box dam glue-line area defined
It is provided with transparent silicon glue-line.
Preferably, the phosphor powder layer is to utilize the phosphor powder layer to dust.
Preferably, the LED chip is the LED chip of blue light-emitting, and the fluorescent powder for including in the phosphor powder layer is yellowish green
Color fluorescent powder.
Preferably, the substrate surface is covered with white ink layer, black ink layer, wherein the black ink layer is covered
It covers on the white ink layer and is located at except the figure of luminescent characters.
Preferably, the LED chip is inverted structure.
Preferably, the LED chip and the phosphor powder layer are CSP structure.
Preferably, the substrate surface is covered with yellow green ink layer, black ink layer, wherein the black ink layer
It is covered on the yellow green ink layer and is located at except the figure of luminescent characters.
The utility model provides a kind of LED light-emitting character panel, which includes the base with luminescent characters region
Plate, the region that luminescent characters region is made of the figure of all luminescent characters: where the figure of each luminescent characters in luminescent characters region
Surface includes LED chip, with a thickness of micron-sized phosphor powder layer；The periphery in luminescent characters region is provided with transparent box dam glue-line,
Transparent silicon glue-line is provided in transparent box dam glue-line area defined.Above-mentioned technical proposal disclosed in the present application, by transparent
Box dam glue-line luminescent characters area periphery carry out box dam, and by transparent silicon glue-line come in luminescent characters region LED chip and
Phosphor powder layer is protected, wherein phosphor powder layer with a thickness of micron order, to reduce phosphor powder layer between different luminescent characters to the greatest extent
The difference of thickness allows phosphor powder layer to be evenly distributed in the surface of the figure of luminescent characters as far as possible, to reduce hair to the greatest extent
Colour temperature difference between light word is reduced to influence caused by LED chip light extraction effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of structural schematic diagram of a specific embodiment of LED light-emitting character panel provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram of CSP structure provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Figure 1, it illustrates an a kind of specific embodiments of LED light-emitting character panel provided by the embodiment of the utility model
Structural schematic diagram, may include the substrate 1 with luminescent characters region, luminescent characters region for all luminescent characters 2 structures of figure
At region:
Wherein, 2 surface of figure of each luminescent characters may each comprise LED chip 21, with a thickness of micron in luminescent characters region
The phosphor powder layer 22 of grade；
The periphery in luminescent characters region is provided with transparent box dam glue-line 3, is provided in transparent 3 area defined of box dam glue-line
Transparent silicon glue-line 4.
The substrate 1 itself of LED light-emitting character panel is used to prepare with luminescent characters region, wherein mentioned substrate 1 can here
Think ceramic substrate etc., the region that the luminescent characters region on substrate 1 is made of the figure 2 of all luminescent characters, for Fig. 1
Speech, luminescent characters region are that the figure of luminescent characters " LOGO " is the region constituted, are no longer needed for utilizing on naked substrate in this way
Box dam glue crosses the figure 2 of each luminescent characters, so as to reduce the preparation step of LED light-emitting character panel, simplifies LED light-emitting character panel
Production process.
The surface of the figure 2 for each luminescent characters for including in luminescent characters region is provided with LED chip 21 and thickness
For micron-sized phosphor powder layer 22, such as: for alphabetical L, phosphor powder layer 22 is the whole surface positioned at letter L.Due to
The thickness of phosphor powder layer 22 can then reduce the difference of 22 thickness of phosphor powder layer between different luminescent characters to the greatest extent than relatively thin, thus
Phosphor powder layer 22 is evenly distributed in as far as possible on the figure 2 of all luminescent characters, with reduce to the greatest extent different luminescent characters it
Between colour temperature difference, thus reduce between different luminescent characters go out the equation of light it is different so that LED light-emitting character panel can achieve it is relatively good
Light-out effect.
In view of LED chip 21 is easy to be damaged in use, and phosphor powder layer 22 can then sent out than relatively thin
Transparent box dam glue-line 3 is arranged in the external of light block domain, is surrounded using transparent 3 box dam of box dam glue-line, and in transparent box dam glue-line 3
Region inside be arranged transparent silicon glue-line 4, also i.e. transparent silica gel layer 4 is covered on LED chip 21 and phosphor powder layer 22,
To play the role of protection to LED chip 21 and phosphor powder layer 22, LED chip 21 and phosphor powder layer 22 is avoided to be destroyed, thus
Extend the service life of LED light-emitting character panel.Selecting transparent box dam glue-line 3 to carry out box dam can make LED chip 21 reach relatively good
Light-out effect, and transparent box dam glue-line 3 can also promote the aesthetics of LED light-emitting character panel.
In addition to this, since the thermal conductivity of fluorescent powder is relatively good, and the thermal conductivity of silica gel is poor, if phosphor powder layer 22
Thickness is thicker, then heat caused by LED chip 21 can be conducted inside fluorescent powder, so that thermal accumlation is in silicon
The inside of glue-line cannot distribute in time and have an impact to the performance of LED light-emitting character panel.Therefore, thickness in the utility model
Heat caused by LED chip 21 can be made to conduct downwards along phosphor powder layer 22 for micron-sized phosphor powder layer 22, also will
Heat conducts to the relatively good substrate 1 of thermal conductivity, and is distributed heat in time by substrate 1, thus including reducing heat
The accumulation in portion, to improve the heat dissipation performance of LED light-emitting character panel.
Above-mentioned technical proposal disclosed in the present application carries out box dam in luminescent characters area periphery by transparent box dam glue-line, and
By transparent silicon glue-line come in luminescent characters region LED chip and phosphor powder layer protect, wherein the thickness of phosphor powder layer
For micron order, to reduce the difference of phosphor powder layer thickness between different luminescent characters to the greatest extent, so that phosphor powder layer equably divides as far as possible
Cloth is on the surface of the figure of luminescent characters, to reduce the colour temperature difference between luminescent characters to the greatest extent, reduces to LED chip light extraction effect
Caused influence.
A kind of LED light-emitting character panel provided by the embodiment of the utility model, phosphor powder layer 22, which can utilize, to dust to obtain
Phosphor powder layer.
The phosphor powder layer 22 on 2 surface of figure of luminescent characters is specifically as follows using what is dusted, can be obtained using dusting
To the phosphor powder layer 22 relatively uniform with a thickness of micron order, bisque, so that phosphor powder layer 22 can be evenly distributed as far as possible
Colour temperature can also be independently debugged on the surface of the figure 2 of luminescent characters, and using dusting to obtain phosphor powder layer 22, it is various aobvious to do
Show, to improve the diversity of LED light-emitting character panel.
A kind of LED light-emitting character panel provided by the embodiment of the utility model, LED chip 21 are the LED chip of blue light-emitting, fluorescence
The fluorescent powder for including in bisque 22 is yellowish green fluorescent powder.
The LED chip 21 that 2 surface of figure of luminescent characters is arranged in can be the LED chip of blue light-emitting, and set
Fluorescent powder included in phosphor powder layer 22 can be the fluorescent powder of yellow green, so that LED light-emitting character panel can show white light,
To allow LED light-emitting character panel to play the role of illumination.Certainly, the fluorescent powder for including in phosphor powder layer 22 may be other
Color does not do any restriction at this to it.
A kind of LED light-emitting character panel provided by the embodiment of the utility model, 1 surface of substrate are covered with white ink layer, black
Ink layer, wherein black ink layer is covered on white ink layer and is located at except the figure 2 of luminescent characters.
It can be in region one time welding resistance white ink layer of 1 surface of substrate in addition to necessary electrical connection area, then
The secondary welding resistance black ink layer in region on white ink layer in addition to the figure 2 of electrical connection area and luminescent characters, most
Obtain eventually be below the figure 2 of luminescent characters white ink layer, luminescent characters figure 2 except region below be white ink layer
And top is the substrate 1 of black ink layer.Wherein, the reflectivity of white ink layer is relatively high, so that LED chip 21 goes out light efficiency
Fruit is relatively good, and white ink layer can also make phosphor powder layer 22 show color possessed by itself, namely white oil
The colorability of layer of ink is relatively good, and the black ink layer except the figure 2 of luminescent characters can then allow luminescent characters more prominent: white
It can protrude luminescent characters when not using LED light-emitting character panel, can protrude LED light-emitting character panel when night is using LED light-emitting character panel
The white light issued.It is of course also possible to which black ink to be changed to the ink of other suitable colors.
A kind of LED light-emitting character panel provided by the embodiment of the utility model, LED chip 21 are inverted structure.
LED chip 21 can be inverted structure, to improve the heat dissipation performance of LED light-emitting character panel, and make phosphor powder layer
22 can be evenly distributed in 2 surface of figure of luminescent characters as far as possible, and also reduce gold wire packaging process using inverted structure,
So as to reduce the encapsulation volume of LED light-emitting character panel.
Fig. 2 is referred to, it illustrates the schematic diagrames of CSP structure provided by the embodiment of the utility model.The utility model is real
A kind of LED light-emitting character panel of example offer is applied, LED chip 21 and phosphor powder layer 22 are CSP structure.
21 blue light-emitting of LED chip in CSP (Chip Scale Package, wafer-level package) structure of Fig. 2, and position
The fluorescent powder for including in the phosphor powder layer 22 of 21 periphery of LED chip is yellowish green fluorescent powder, so that LED light-emitting character panel is working
When can show white light.When preparing LED light-emitting character panel, can directly by CSP structure setting the figure 2 of luminescent characters table
Face, namely no longer need to obtain phosphor powder layer 22 on the surface of the figure 2 of luminescent characters and dusting.Wherein, in CSP structure
Each chip is individually encapsulated, and the colour temperature of each chip can be tested individually, thus can be by colour temperature phase one
The CSP structure of cause is fixed in the figure 2 of luminescent characters, so as to reduce the colour temperature difference between luminescent characters to the greatest extent.
A kind of LED light-emitting character panel provided by the embodiment of the utility model, 1 surface of substrate are covered with yellow green ink layer, black
Color ink layer, wherein black ink layer is covered on yellow green ink layer and is located at except the figure 2 of luminescent characters.
Change the color of the 2 lower section ink of figure of luminescent characters due to not needing to dust, then it can be directly on 1 surface of substrate
The yellowish green color ink of welding resistance of region one time in addition to necessary electrical connection area, so that the lower section of the figure 2 of luminescent characters
Yellow green can directly be showed, then can on white ink layer except electrical connection area and luminescent characters figure 2 it
The secondary welding resistance black ink layer in outer region.Wherein, the LED chip 21 and phosphor powder layer 22 in yellowish green color ink and CSP structure
It can make LED light-emitting character panel that white light be presented, and the black ink layer except the figure 2 of luminescent characters can then highlight white light.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the element that the process, method, article or equipment including a series of elements is intrinsic.?
Do not have in the case where more limiting, the element limited by sentence "including a ...", it is not excluded that including the element
There is also other identical elements in process, method, article or equipment.In addition, provided by the embodiment of the utility model above-mentioned
In technical solution with correspond to the consistent part of technical solution realization principle and unspecified in the prior art, in order to avoid excessive superfluous
It states.
The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this is practical new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest scope.
Claims (7)
1. a kind of LED light-emitting character panel, which is characterized in that the substrate including having luminescent characters region, the luminescent characters region is institute
The region for thering is the figure of luminescent characters to be constituted:
Wherein, the patterned surface of each luminescent characters includes LED chip, with a thickness of micron-sized fluorescence in the luminescent characters region
Bisque；
The periphery in the luminescent characters region is provided with transparent box dam glue-line, setting in the transparent box dam glue-line area defined
There is transparent silicon glue-line.
2. LED light-emitting character panel according to claim 1, which is characterized in that the phosphor powder layer, which utilizes, to dust to obtain
Phosphor powder layer.
3. LED light-emitting character panel according to claim 2, which is characterized in that the LED chip is the LED chip of blue light-emitting,
The fluorescent powder for including in the phosphor powder layer is yellowish green fluorescent powder.
4. LED light-emitting character panel according to claim 3, which is characterized in that the substrate surface be covered with white ink layer,
Black ink layer, wherein the black ink layer is covered on the white ink layer and is located at except the figure of luminescent characters.
5. LED light-emitting character panel according to any one of claims 1 to 4, which is characterized in that the LED chip is upside-down mounting knot
Structure.
6. LED light-emitting character panel according to claim 1, which is characterized in that the LED chip is with the phosphor powder layer
CSP structure.
7. LED light-emitting character panel according to claim 6, which is characterized in that the substrate surface is covered with yellowish green color ink
Layer, black ink layer, wherein the black ink layer is covered on the figure on the yellow green ink layer and being located at luminescent characters
Except.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768049.5U CN208284188U (en) | 2018-05-22 | 2018-05-22 | A kind of LED light-emitting character panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768049.5U CN208284188U (en) | 2018-05-22 | 2018-05-22 | A kind of LED light-emitting character panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284188U true CN208284188U (en) | 2018-12-25 |
Family
ID=64729259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768049.5U Active CN208284188U (en) | 2018-05-22 | 2018-05-22 | A kind of LED light-emitting character panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492742A (en) * | 2018-05-22 | 2018-09-04 | 宁波升谱光电股份有限公司 | A kind of LED light-emitting character panels and preparation method thereof |
-
2018
- 2018-05-22 CN CN201820768049.5U patent/CN208284188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492742A (en) * | 2018-05-22 | 2018-09-04 | 宁波升谱光电股份有限公司 | A kind of LED light-emitting character panels and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106663725B (en) | Light emitting device | |
| TW200731565A (en) | Color converted light emitting diode | |
| CN203644815U (en) | LED packaging structure | |
| CN106783821A (en) | The full-spectrum LED encapsulating structure and its method for packing of a kind of unstressed configuration powder | |
| CN110165041A (en) | Light emitting device, its manufacturing method and display module | |
| CN107464803A (en) | It is a kind of based on wafer-level package can be from the LED filament preparation method of color-temperature regulating | |
| CN208284188U (en) | A kind of LED light-emitting character panel | |
| CN207500850U (en) | LED filament and LEDbulb lamp | |
| CN209104189U (en) | A kind of width colour gamut COB device | |
| CN104037302B (en) | LED (light-emitting diode) package assembly | |
| CN103022326B (en) | Intensive packaging method of LEDs | |
| CN201117657Y (en) | Light emitting diode packaging structure | |
| CN209515058U (en) | A kind of area source backlight luminous board, backlight module and display device | |
| CN202598261U (en) | High-light high color rendering index (CRI) warm white light light-emitting diode (LED) lamp and LED module | |
| CN108987556A (en) | A kind of white chip | |
| CN205960029U (en) | COB light source and collection moulding piece and lamps and lanterns | |
| CN210897276U (en) | Color-changeable planar light source module | |
| CN209282199U (en) | A kind of double-colored COB of tunable optical Tai Ji moulding | |
| CN207938643U (en) | A kind of emitting semiconductor structure that can send out a variety of coloured light | |
| CN214012966U (en) | LED lamp filament | |
| CN201666469U (en) | LED module packaging structure | |
| CN205824625U (en) | LED lamp bar | |
| CN201946623U (en) | Improved light emitting diode (LED) support and LED lamp using same | |
| CN108492742A (en) | A kind of LED light-emitting character panels and preparation method thereof | |
| CN204927340U (en) | LED light source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |