CN101064355A - Method for producing white light luminous diode - Google Patents
Method for producing white light luminous diode Download PDFInfo
- Publication number
- CN101064355A CN101064355A CNA2006100781891A CN200610078189A CN101064355A CN 101064355 A CN101064355 A CN 101064355A CN A2006100781891 A CNA2006100781891 A CN A2006100781891A CN 200610078189 A CN200610078189 A CN 200610078189A CN 101064355 A CN101064355 A CN 101064355A
- Authority
- CN
- China
- Prior art keywords
- white light
- wall
- preparation
- fluorescent
- crystal particle
- 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.)
- Granted
Links
Images
Landscapes
- Led Device Packages (AREA)
Abstract
The invention relates to a preparing method of white light LBD that includes following steps: (A) providing a basis; (B) a LBD grain is set on said basis; (C) an outer fluorescence wall is set on said basis and surrounds said LBD grain; and (D) a inner fluorescence layer is set in space which is defined by said outer fluorescence wall, and fills said space. The invention divides the production of fluorescence layer into two steps, firstly setting an outer fluorescence wall at around of LBD grain, then forming an inner fluorescence layer in space defined by the outer fluorescence wall to compose an integral fluorescence layer whose thickness is even, defining figuration of the integral fluorescence layer by setting the outer fluorescence wall to control the thickness of the integral fluorescence layer possess consistency, the white light LBD can emit even white light, it resolves problem that white light emitted by ago LBD is not even.
Description
Technical field
The present invention relates to a kind of preparation method of white light LBD, particularly relate to a kind of fluorescent layer manufacture method that can send the light-emitting diode of equal white light.
Background technology
Light-emitting diode (being diode) has that volume is little, in light weight, vibration strength is good, and advantage such as reaction speed is fast, can be widely as the light source of various indicating devices and display.Especially in recent years develop the white light emitting diode that, have general osram lamp of replacement or fluorescent tube with trend as lighting source.
United States Patent (USP) the 5th, 998, No. 925 the patent case has proposed a kind of technical scheme, it is the white light emitting diode that utilizes blue light-emitting diode crystal grain collocation fluorescent layer, the utilization fluorescent layer can absorb the part blue light that LED crystal particle sends and be converted into gold-tinted, another partly unabsorbed blue light colour mixture formation white light that gold-tinted that fluorescent layer changes out can be sent with LED crystal particle.
See also shown in Figure 1ly, be a schematic diagram of the white light emitting diode of the 5th, 998, No. 925 patents of above-mentioned United States Patent (USP).Wherein, the manufacture method of fluorescent layer 13, thermosetting resin and fluorescent material are mixed into a liquefied mixture in advance, and utilize spot gluing equipment that described liquefied mixture point is overlying on around the LED crystal particle 12 on the pedestal 11, and described liquefied mixture is solidified to form fluorescent layer 13 via baking.
Yet, because the above-mentioned mode of utilizing spot gluing equipment to form fluorescent layer 13, can cause fluorescent layer 13 above LED crystal particle 12 and the variable thickness of side cause, make the uneven phenomenon of generating white light that white light emitting diode sent.
Therefore, in order to solve the uneven phenomenon of above-mentioned white light, United States Patent (USP) the 6th, 650, No. 044 the patent case has adopted a kind of method of utilizing template (stencil) printing to make fluorescent layer.
See also Fig. 2 and shown in Figure 3, described method, be a template 24 with plural perforate 241 to be posted by one be formed with on the substrate 21 of plural LED crystal particle 22, LED crystal particle 22 is positioned within the perforate 241 accordingly, the liquefied mixture that will comprise thermosetting resin and fluorescent material then by perforate 241 coat LED crystal particle 22 around to form fluorescent layer 23, then template 24 is separated with substrate 21, and heating is solidified fluorescent layer 23.
The height that equals LED crystal particle 22 in fact by the thickness of pre-defined template 24 adds the thickness of fluorescent layer 23, and the width that the width of perforate 241 equals LED crystal particle 22 in fact adds the thickness of the fluorescent layer 23 of twice, can make fluorescent layer 23 above LED crystal particle 22 with the consistency of thickness of side so that the white light that light-emitting diode sent has good homogeneous.
Only above-mentioned method can only be applicable to need not beat that gold thread connects cover crystalline substance (flip chip), adopt on the crystal grain of playing the gold thread connection and can not use general.
And when actual fabrication, when template 24 was separated with substrate 21, perforate 241 edges can draw fluorescent layer 23 and cause the edge of fluorescent layer 23 to produce defective, so that influence the uniformity of white light that light-emitting diode sends.
This shows that above-mentioned existing preparation method of white light LBD obviously still has inconvenience and defective, and demands urgently further being improved in method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and conventional method does not have appropriate manufacture method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new preparation method of white light LBD, just become the current industry utmost point to need improved target.
Because the defective that above-mentioned existing preparation method of white light LBD exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of new preparation method of white light LBD, can improve general existing manufacture method, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing preparation method of white light LBD exists, and a kind of manufacture method of light-emitting diode of sent equal white light newly is provided, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of preparation method of white light LBD that the present invention proposes, it may further comprise the steps: (A). a pedestal is provided; (B). a LED crystal particle is arranged on the described pedestal; (C). an outer fluorescent wall that is the surrounding wall shape is arranged on the described pedestal, and around described LED crystal particle; And (D). an interior fluorescent layer is arranged at described outer fluorescent wall centers in the accommodation space that defines, and fill up described accommodation space.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid preparation method of white light LBD, described outer fluorescent wall in wherein said step (C) and the step (D) comprises identical fluorescent material and mixed proportion with described interior fluorescent layer, and described fluorescent material is used for the light that described LED crystal particle is sent is converted to another different light of wavelength.
Aforesaid preparation method of white light LBD, in the wherein said step (C), the end face of described outer fluorescent wall to the vertical range of the end face of described LED crystal particle is equal to the horizontal range of the outside wall surface of described outer fluorescent wall to the side of described LED crystal particle in fact.
Aforesaid preparation method of white light LBD, the described outer fluorescent wall in the wherein said step (C) is to make shaping in advance, is arranged on the described pedestal again.
Aforesaid preparation method of white light LBD, in the wherein said step (C), described outer fluorescent wall is to make shaping in advance in the thermmohardening mode.
Aforesaid preparation method of white light LBD, in the wherein said step (C), described outer fluorescent wall is to make shaping in advance in the injection molding mode.
Aforesaid preparation method of white light LBD, in the wherein said step (D), described interior fluorescent layer is to form in a glue mode.
Aforesaid preparation method of white light LBD in the wherein said step (D), also is heating and curing to fluorescent layer in described.
Aforesaid preparation method of white light LBD in the wherein said step (D), also imposes UV-irradiation to fluorescent layer in described and solidifies.
Aforesaid preparation method of white light LBD, wherein said step (C) also are electrically connected with described pedestal described LED crystal particle afterwards with the formation of routing juncture.
Aforesaid preparation method of white light LBD, the described LED crystal particle in the wherein said step (B) are to form in the chip bonding mode to be electrically connected with described pedestal.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, in order to achieve the above object, the invention provides a kind of preparation method of white light LBD, it is that making with fluorescent layer is divided into two steps and is finished, the outer fluorescent wall that one surrounding wall shape is set earlier forms an interior fluorescent layer again to constitute a complete fluorescent layer in the accommodation space that the fluorescent wall is defined outside around LED crystal particle.The fluorescent wall defines the profile of complete fluorescent layer in advance outside being provided with, and the thickness that can control complete fluorescent layer has consistency, can solve the not good problem of white light uniformity that light-emitting diode sent in the past.
So preparation method of white light LBD of the present invention comprises the following steps:
(A) provide a pedestal;
(B) LED crystal particle is arranged on the described pedestal;
(C) the outer fluorescent wall of a surrounding wall shape being arranged on the described pedestal and around described LED crystal particle, is to need beat earlier gold thread to connect as crystal grain, can finish earlier and beat the tie point that gold thread is connected to necessity;
(D) fluorescent layer in is arranged in the accommodation space that described outer fluorescent wall defined and fills up described accommodation space.
By technique scheme, preparing method of white light LBD of the present invention has following advantage at least: by the fluorescent wall being set outside one around the light-emitting diode on the pedestal, to define the profile of complete fluorescent layer in advance, again interior fluorescent layer is arranged in the accommodation space that outer fluorescent wall defined, can make the thickness of complete fluorescent layer above LED crystal particle, have consistency, and then the white light that light-emitting diode is sent have good homogeneous on all directions with the side.
In sum, the preparation method of white light LBD of novelty of the present invention can be sent uniform white light, has solved the not good problem of white light uniformity that light-emitting diode sent in the past.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on method or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing preparation method of white light LBD has the effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a side cutaway view of existing light-emitting diode in the past.
Fig. 2 is that the existing mould printing that utilizes in the past forms a schematic diagram of a fluorescent layer on a LED crystal particle.
Fig. 3 is that the existing mould printing that utilizes in the past forms a side cutaway view of the light-emitting diode of fluorescent layer.
Fig. 4 is a flow chart of the fluorescent layer manufacture method most preferred embodiment of light-emitting diode of the present invention.
Fig. 5 is a side cutaway view of this most preferred embodiment, illustrates a LED crystal particle is arranged on the pedestal.
Fig. 6 is a schematic diagram of this most preferred embodiment, illustrates an outer fluorescent wall is arranged on the described pedestal also around described LED crystal particle.
Fig. 7 is a side cutaway view that is arranged at an outer fluorescent wall on the described pedestal among Fig. 6 and centers on described LED crystal particle.
Fig. 8 is a side cutaway view of this most preferred embodiment, illustrates to utilize the routing juncture that described LED crystal particle and described pedestal are electrically connected.
Fig. 9 is a side cutaway view of this most preferred embodiment, illustrates to utilize the chip bonding mode that described LED crystal particle and described pedestal are electrically connected.
Figure 10 is a side cutaway view of this most preferred embodiment, illustrates that an interior fluorescent layer is arranged at described outer fluorescent wall to be centered in the accommodation space that defines.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of preparation method of white light LBD, method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also Fig. 4 and shown in Figure 5, the preparation method of white light LBD of preferred embodiment of the present invention mainly may further comprise the steps:
At first, step 41 provides pedestal 31 earlier;
Then, in the step 42, with LED crystal particle (hereinafter to be referred as crystal grain) 32 sticking being located on the pedestal 31.Its sticking mode of establishing is will be located on the pedestal 31 as the silver paste points of sticky material earlier, and then crystal grain 32 is arranged on the elargol, makes elargol formed by hot curing at last.The sticking mode of establishing of described crystal grain also can adopt eutectoid alloy (Eutectic) in the past to engage.
Then, see also Fig. 4, Figure 6 and Figure 7, step 43 is that the outer fluorescent wall 33 with a surrounding wall shape is arranged on the pedestal 31 and around crystal grain 32.
Outer fluorescent wall 33 is that the resin solidification that will contain the proper proportion fluorescent material in thermmohardening (thermo set) mode separately in advance is shaped or gets with injection molding.Because the major function of outer fluorescent wall 33 is profile and the thickness that is used for defining a complete fluorescent layer, therefore, the profile of outer fluorescent wall 33 is the profiles corresponding to crystal grain 32, in the present embodiment, because crystal grain 32 is square, therefore the shape of outer fluorescent wall 33 also is representative with square.
See also Figure 6 and Figure 7, in order to make the consistency of thickness of complete fluorescent layer, to make crystal grain 32 be positioned at the center of accommodation space 331 bottoms that outer fluorescent wall 33 defined earlier, and to adjust in advance outer fluorescent wall 33 width w and the height h, so that the outside wall surface of outer fluorescent wall 33, is equal to the vertical range d1 of outer fluorescent wall 33 end faces to crystal grain 32 end faces in fact to the horizontal range d2 of crystal grain 32 sides.
Then, see also shown in Figure 8ly, in step 44, an electrode of crystal grain 32 or two electrodes (kind on described crystal grain 32 is that single electrode or bipolar electrode are decided up) are electrically connected with two conductive parts 311 that are provided with at interval on the pedestal 31 respectively.Need to prove, crystal grain 32 is not limited to the routing shown in the figure with the mode that pedestal 31 is electrically connected and engages (wire bond), also can utilize and cover crystalline substance (flip chip) juncture crystal grain 32 is electrically connected with pedestal 31, as shown in Figure 9, in utilizing the chip bonding mode, the action that need not have routing to connect.Being electrically connected with external power source via conductive part 311 can be luminous in order to drive crystal grain 32.
Then, see also Fig. 4 and shown in Figure 10, in step 45, to be overlying on the resin point that outer fluorescent wall 33 contains identical fluorescent material and ratio in the accommodation space 331 that outer fluorescent wall 33 defined, and described resin is heating and curing or solidifies to form an interior fluorescent layer 34 that coats crystal grain 32 end faces and side with UV-irradiation.
Above-mentioned be contained in outer fluorescent wall 33 and in the fluorescent material of fluorescent layer 34 can absorb the blue light of the part that crystal grain 32 sent, and the blue light of described part is converted to gold-tinted.Because blue light and gold-tinted are complementary coloured light, therefore, gold-tinted can form white light with another blue light colour mixture that is not partly absorbed by fluorescent material.
Conclude above-mentioned, fluorescent wall 33 outside making separately in advance, outer fluorescent wall 33 is arranged at around the crystal grain 32 again, cooperate then interior fluorescent layer 34 is arranged in the accommodation space 331 that outer fluorescent wall 33 defined, make complete fluorescent layer that outer fluorescent wall 33 and interior fluorescent layer 34 constituted above crystal grain 32 with the consistency of thickness of side, so that mixed white light has good homogeneous on all directions, can reach effect of the present invention really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (11)
1, a kind of preparation method of white light LBD is characterized in that it may further comprise the steps:
(A). a pedestal is provided;
(B). a LED crystal particle is arranged on the described pedestal;
(C). an outer fluorescent wall that is the surrounding wall shape is arranged on the described pedestal, and around described LED crystal particle; And
(D). an interior fluorescent layer is arranged at described outer fluorescent wall centers in the accommodation space that defines, and fill up described accommodation space.
2, preparation method of white light LBD according to claim 1, it is characterized in that the described outer fluorescent wall in wherein said step (C) and the step (D) comprises identical fluorescent material and mixed proportion with described interior fluorescent layer, described fluorescent material is used for the light that described LED crystal particle is sent is converted to another different light of wavelength.
3, preparation method of white light LBD according to claim 1, it is characterized in that in the wherein said step (C) that the end face of described outer fluorescent wall to the vertical range of the end face of described LED crystal particle is equal to the horizontal range of the outside wall surface of described outer fluorescent wall to the side of described LED crystal particle in fact.
4, preparation method of white light LBD according to claim 1 is characterized in that the described outer fluorescent wall in the wherein said step (C) is to make shaping in advance, is arranged on the described pedestal again.
5, preparation method of white light LBD according to claim 4 is characterized in that in the wherein said step (C) that described outer fluorescent wall is to make shaping in advance in the thermmohardening mode.
6, preparation method of white light LBD according to claim 4 is characterized in that in the wherein said step (C) that described outer fluorescent wall is to make shaping in advance in the injection molding mode.
7, preparation method of white light LBD according to claim 1 is characterized in that in the wherein said step (D), and described interior fluorescent layer is to form in a glue mode.
8, preparation method of white light LBD according to claim 7 is characterized in that in the wherein said step (D), also fluorescent layer in described is heating and curing.
9, preparation method of white light LBD according to claim 7 is characterized in that in the wherein said step (D), also fluorescent layer in described is imposed UV-irradiation and solidifies.
10, preparation method of white light LBD according to claim 1 is characterized in that wherein said step (C) afterwards, also described LED crystal particle is formed with the routing juncture with described pedestal to be electrically connected.
11, preparation method of white light LBD according to claim 1 is characterized in that the described LED crystal particle in the wherein said step (B) is to form in the chip bonding mode to be electrically connected with described pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100781891A CN100472828C (en) | 2006-04-28 | 2006-04-28 | Method for producing white light luminous diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100781891A CN100472828C (en) | 2006-04-28 | 2006-04-28 | Method for producing white light luminous diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101064355A true CN101064355A (en) | 2007-10-31 |
| CN100472828C CN100472828C (en) | 2009-03-25 |
Family
ID=38965196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100781891A Active CN100472828C (en) | 2006-04-28 | 2006-04-28 | Method for producing white light luminous diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100472828C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163681A (en) * | 2009-12-03 | 2011-08-24 | Lg伊诺特有限公司 | Light emitting apparatus, method of manufacturing the same, and lighting system |
| CN101436628B (en) * | 2007-11-16 | 2012-01-25 | 广州市鸿利光电股份有限公司 | Technological process for coating fluorescent powder of high-power chip |
| CN102916095A (en) * | 2011-07-31 | 2013-02-06 | 华新丽华股份有限公司 | Light emitting diode |
-
2006
- 2006-04-28 CN CNB2006100781891A patent/CN100472828C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436628B (en) * | 2007-11-16 | 2012-01-25 | 广州市鸿利光电股份有限公司 | Technological process for coating fluorescent powder of high-power chip |
| CN102163681A (en) * | 2009-12-03 | 2011-08-24 | Lg伊诺特有限公司 | Light emitting apparatus, method of manufacturing the same, and lighting system |
| CN102163681B (en) * | 2009-12-03 | 2015-04-08 | Lg伊诺特有限公司 | Light emitting apparatus, method of manufacturing the same, and lighting system |
| CN102916095A (en) * | 2011-07-31 | 2013-02-06 | 华新丽华股份有限公司 | Light emitting diode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100472828C (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1905227A (en) | Light emitting diode package with diffuser and method of manufacturing the same | |
| CN1845351A (en) | Light-emitting diode | |
| JP6054526B2 (en) | Method for manufacturing light emitting device | |
| CN103646620B (en) | LED shows module and manufacture method thereof | |
| CN107146789A (en) | LED encapsulation method and LED display | |
| CN101064355A (en) | Method for producing white light luminous diode | |
| CN101442087B (en) | Low power low light loss white light LED | |
| JP3114129U (en) | White light emitting diode | |
| CN101877374A (en) | Process for preparing white-light LED by using fluorescent powder lens | |
| CN101043062A (en) | Seat structure of diode illuminating device and method for manufacturing diode illuminating device | |
| CN104993032A (en) | White-light LED device and manufacturing method thereof | |
| TW201327934A (en) | Method for manufacturing LED package and phosphor film thereof | |
| WO2010023992A1 (en) | Light-emitting device and method for manufacturing same | |
| CN102810618B (en) | Semiconductor packaging structure | |
| CN101673791A (en) | Method of packaging light emitting diode on through-hole substrate | |
| CN101894889B (en) | Method for preparing white light LED | |
| CN201766102U (en) | White light light-emitting diode of SMD (surface mounted device) | |
| CN201242103Y (en) | Large power LED encapsulation structure | |
| CN104409609B (en) | A kind of LED lamp and its manufacture method and manufacture mould | |
| CN2729907Y (en) | Improved structure of white light LED | |
| CN106523933A (en) | Heterogeneous LED luminous source assembly and manufacturing process thereof | |
| JP5825259B2 (en) | Method for forming light conversion layer, method for manufacturing light conversion member, and method for manufacturing light emitting device | |
| CN105047792A (en) | High-luminescence-efficiency white-light nixie tube packaging structure | |
| CN111628066A (en) | Process method for improving LED brightness | |
| CN204834673U (en) | White light LED device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN BENYUN OPTOELECTRONICS TECHNOLOGY CO., LT |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110715 Address after: Taiwan County, Taipei, China Co-patentee after: Dongguan Pinyuan Optoelectronic Technology Co., Ltd. Patentee after: Bright LED Electronics Corp. Address before: Taiwan County, Taipei, China Patentee before: Bright LED Electronics Corp. |