CN201927603U - Graphical LED (light-emitting diode) device - Google Patents

Graphical LED (light-emitting diode) device Download PDF

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Publication number
CN201927603U
CN201927603U CN2010206914780U CN201020691478U CN201927603U CN 201927603 U CN201927603 U CN 201927603U CN 2010206914780 U CN2010206914780 U CN 2010206914780U CN 201020691478 U CN201020691478 U CN 201020691478U CN 201927603 U CN201927603 U CN 201927603U
Authority
CN
China
Prior art keywords
led
graphical
light source
radiating substrate
heat
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.)
Expired - Fee Related
Application number
CN2010206914780U
Other languages
Chinese (zh)
Inventor
张方辉
毕长栋
李艳菲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN2010206914780U priority Critical patent/CN201927603U/en
Application granted granted Critical
Publication of CN201927603U publication Critical patent/CN201927603U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a graphical LED (light-emitting diode) device, which comprises a radiating substrate (1), a plurality of LED chips (2), a connection lead (4), a luminescent fluorescent powder region (3), a silica gel packaging layer (5) and electrode leads, wherein the LED chips (2) are fixed on the radiating substrate (1); the connection lead (4) is used for connecting the LED chips (2) together; the luminescent fluorescent powder region (3) is coated on the radiating substrate (1) and is covered on the LED chips (2); the silica gel packaging layer (5) is coated on the luminescent fluorescent powder region (3); and the electrode leads are led out from the LED chips (2). A line light source and an area light source in the light sources emitted by the LED device can be used for various applications such as a measurement and control light source, an alignment light source, a reference light source, a specific light source and the like. The graphical LED device not only is energy-saving and power-saving, but also is green and environmental-friendly. Meanwhile, due to the advantages of long service life, low power consumption, high lighting effect, rich and full color, capability of being continuously switched on, switched off and flashed and the like, the graphical LED device is more convenient for commercial production.

Description

A kind of graphical LED device
Technical field
The utility model relates to a kind of graphical LED packaging.
Background technology
LED (Light Emitting Diode), promptly electroluminescent diode is a kind of solid-state semiconductor device, it can directly be converted into light to electricity.The core of LED is a semiconductor wafer, and an end is a negative pole, and the other end is the positive pole that connects power supply, and entire wafer is got up by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is a P type semiconductor, occupies an leading position in its hole, the inside, and the other end is a N type semiconductor, mainly is electronics here.When these two kinds of semiconductors couple together, just form one " P-N knot " between them.When electric current acted on this wafer by lead, electronics will be pushed to the P district, and electronics sends energy with the form of photon, the luminous principle of LED that Here it is then with hole-recombination in the P district.
As a kind of solid light source, LED has long-life, environmental protection, low-power consumption, high light efficiency, how photochromic, tunable optical, response is rapid, start-up time is short, no ultraviolet, rich color is full, switch dodges many advantages such as breaking, can work under the safety low-voltage continuously, day by day develop towards the direction that becomes lighting source of new generation.Yet the light source that LED sends is generally point-source of light, and just inapplicable for the occasion that needs line of departure light source and area source.
The utility model content
Technical problem to be solved in the utility model provides a kind of graphical LED packaging, and emergent light is line source or face emergent light, can be used as the observing and controlling light source.
For achieving the above object, the utility model provides a kind of graphical LED packaging, the connection lead-in wire that comprises heat-radiating substrate, is fixed on a plurality of led chips on the heat-radiating substrate, a plurality of led chips are linked together, with line, millet cake powder mode be coated on the heat-radiating substrate and cover led chip the luminescent phosphor zone, be coated in the silica gel encapsulated layer on the luminescent phosphor zone with line, millet cake glue mode, and the contact conductor of drawing from led chip.
As preferred embodiment of the present utility model, described heat-radiating substrate is made by the material that aluminium, copper have excellent heat dispersion performance;
As preferred embodiment of the present utility model, described led chip is with the graphical arrangement of definite shape;
As preferred embodiment of the present utility model, described heat-radiating substrate is designed to and the corresponding shape in luminescent phosphor zone.
The utility model provides a kind of graphical LED packaging, by led chip is potted directly on the heat-radiating substrate in patterned mode, the direct thereon then mode with point, line or face is coated with fluorescent material and packaging plastic, can be provided with or not be provided with datum mark as required in the middle of the figure, this figure can be various simple or complex rule or irregular geometric figures, as triangle, square, rectangle, circle, rhombus and according to special requirement make irregularly shaped etc.Not only attractive in appearance, have more practical value.
The utility model compared with prior art, at least have the following advantages: the graphical LED packaging of the utility model directly is encapsulated into chip on the heat-radiating substrate in the mode of figure, not only has better radiating effect, save support, reduce cost, on use, has simultaneously higher practical value, can be used as observing and controlling light source, contraposition light source, reference light source, special source, Landscape Lighting light source and wait various uses such as carrying out observing and controlling, detection, Landscape Lighting, when satisfying user's demand, accomplished again attractive in appearance, rich color is full.Its some powder with line or face, some glue mode have better light extraction efficiency and light-emitting uniformity simultaneously, make to have more continuity, and illumination effect is better.
Description of drawings
Fig. 1 is the structural representation of a kind of graphical LED packaging of the utility model.
Wherein, 1 is heat-radiating substrate, and 2 is led chip, and 3 is the luminescent phosphor zone, and 4 are the connection lead-in wire, 5 silica gel encapsulated layers, and 6 is contact conductor.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description:
As shown in Figure 1, the connection lead-in wire 4 that the graphical LED packaging of the utility model comprises heat-radiating substrate 1, be fixed on a plurality of led chips 2 on the heat-radiating substrate 1, a plurality of led chips 2 are linked together, be coated on the heat-radiating substrate 1 and cover led chip 2 luminescent phosphor zone 3, be coated in the silica gel encapsulated layer 5 on the luminescent phosphor zone 3, and the contact conductor 6 of drawing from each led chip 2.
Described heat-radiating substrate 1 is made by the material that aluminium, copper have excellent heat dispersion performance.
On heat-radiating substrate 1, described light-emitting zone 3 is that the form brushing layer of fluorescent powder with line or face forms on heat-radiating substrate 1 to described led chip 2 with the fixed in shape of certain figure.
The preparation method of the graphical LED of the utility model comprises following key step:
1. the design of fin, processing and cleaning: according to using needs, fin is designed,, clean then so that come into operation to its processing;
2. design LED light-emitting zone figure: according to actual use, design its arrangements of chips figure, can add and not add the center reference point.
3. solid brilliant on the fin: as led chip to be placed on the brilliant platform of thorn, with the brilliant pen of thorn led chip to be stung on the corresponding position of graphical LED singly at microscopically;
4. gold thread welding: led chip is connected to form good Ohmic contact with ultrasonic gold wire bonder;
5. dot fluorescent powder and packaging plastic: with fluorescent material in the mode of point, line or face directly on heating panel, make fluorescent material cover led chip fully, thereby determine light-emitting zone, put packaging plastic then and encapsulate;
6. test and use: the LED that obtains is carried out parameter testing and comes into operation.
In the utility model, because led chip is encapsulated with patterned way, so the variation more of its use; Because the mode with point, line or face is carried out a powder, some glue to it, therefore has better light efficiency and light-emitting uniformity.
The above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims (4)

1. graphical LED packaging, it is characterized in that: the connection lead-in wire (4) that comprises heat-radiating substrate (1), is fixed on a plurality of led chips (2) on the heat-radiating substrate (1), a plurality of led chips (2) are linked together, be coated in heat-radiating substrate (1) with line, millet cake powder mode and go up and cover the luminescent phosphor zone (3) of led chip (2), be coated in silica gel encapsulated layer (5) on the luminescent phosphor zone (3) with line, millet cake glue mode, and the contact conductor (6) of drawing from led chip (2).
2. graphical LED packaging as claimed in claim 1, it is characterized in that: described heat-radiating substrate is made by the material with excellent heat dispersion performance.
3. graphical LED packaging as claimed in claim 1 is characterized in that: described led chip is with the graphical arrangement of definite shape.
4. graphical LED packaging as claimed in claim 3 is characterized in that: described heat-radiating substrate is designed to and luminescent phosphor zone (3) corresponding shape.
CN2010206914780U 2010-12-30 2010-12-30 Graphical LED (light-emitting diode) device Expired - Fee Related CN201927603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206914780U CN201927603U (en) 2010-12-30 2010-12-30 Graphical LED (light-emitting diode) device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206914780U CN201927603U (en) 2010-12-30 2010-12-30 Graphical LED (light-emitting diode) device

Publications (1)

Publication Number Publication Date
CN201927603U true CN201927603U (en) 2011-08-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206914780U Expired - Fee Related CN201927603U (en) 2010-12-30 2010-12-30 Graphical LED (light-emitting diode) device

Country Status (1)

Country Link
CN (1) CN201927603U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840049A (en) * 2012-11-23 2014-06-04 苏州科医世凯半导体技术有限责任公司 Semiconductor LED light source with customized light emitting surface shape
CN104791707A (en) * 2014-01-16 2015-07-22 四川新力光源股份有限公司 Emergency lamp
CN107479252A (en) * 2017-08-31 2017-12-15 深圳市华星光电技术有限公司 LED lamp bead and back light, backlight module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840049A (en) * 2012-11-23 2014-06-04 苏州科医世凯半导体技术有限责任公司 Semiconductor LED light source with customized light emitting surface shape
CN104791707A (en) * 2014-01-16 2015-07-22 四川新力光源股份有限公司 Emergency lamp
CN107479252A (en) * 2017-08-31 2017-12-15 深圳市华星光电技术有限公司 LED lamp bead and back light, backlight module

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110810

Termination date: 20111230