CN101887943A - PLCC LED, LED backlight module and mobile phone - Google Patents
PLCC LED, LED backlight module and mobile phone Download PDFInfo
- Publication number
- CN101887943A CN101887943A CN 201010207645 CN201010207645A CN101887943A CN 101887943 A CN101887943 A CN 101887943A CN 201010207645 CN201010207645 CN 201010207645 CN 201010207645 A CN201010207645 A CN 201010207645A CN 101887943 A CN101887943 A CN 101887943A
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- led
- lead frame
- plcc
- grooves
- plcc led
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- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000013078 crystal Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 10
- 230000005619 thermoelectricity Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Telephone Set Structure (AREA)
Abstract
The invention is applicable to the field of illumination, providing a PLCC LED, an LED backlight module and a mobile phone. The PLCC LED comprises a lead frame, LED chips arranged on the lead frame in a solid crystal and bonding wire mode, and an optical cup and a basal plate which are injection moulded with the lead frame into a whole; the lead frame forms electrode lead feet at two ends of the basal plate; and the lead frame is made of metallic tablets with grooves which are moulded in one step. In the invention, by adopting the PLCC LED made of metallic tablets with grooves which are moulded in one step, the thermoelectric performance of the lead frame can not be changed; compared with the prior art, the PLCC LED has favorable heat dissipation effect and electric conduction performance; the grooves which are moulded in one step increase the walking route of aqueous vapor, ensuring water-proof effect of the PLCC LED with low cost.
Description
Technical field
The invention belongs to lighting field, relate in particular to a kind of PLCC LED, LED-backlit module and mobile phone.
Background technology
Many weeks, LED is as the new generation of green lighting source, has the light efficiency height, numerous advantages such as the life-span is long, volume is little, energy-saving and environmental protection, and application is more and more widely grown as indoor and outdoor lighting, backlight, medical treatment, traffic, plant etc.
A kind of PLCC LED (Plastic Leaded Chip Carrier LED, the plastic chip carrier packaged LED of PLCC LED band lead-in wire) appears in recent years.PLCC LED has the advantage that overall dimension is little, reliability is high.Simultaneously, PLCC LED can free injection mo(u)lding, realizes various optics bowl cups designs, improves finished product and goes out light effect, and be widely used.
The raw material of PLCC LED is mainly plastic cement and metal, can't be in harmonious proportion the cementability of plastic cement and metal at present, causes that PLCC LED is congenital to exist the aqueous vapor defence bad.For improving the inadequate natural endowment of PLCC LED, need metal material is handled, change every performance of metal material unavoidably, influence its thermoelectricity capability, and waterproof effect is unsatisfactory.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of PLCC LED, is intended to solve existing PLCC LED thermoelectricity capability difference and the not good problem of waterproof effect.
The embodiment of the invention is to realize like this, a kind of PLCC LED, comprise: a lead frame, solid crystalline substance are wired in the led chip of described lead frame and optics bowl cup and the substrate that is one with described lead frame injection mo(u)lding, described lead frame forms electrode pin in the two ends of described substrate, and described lead frame is made by the metal tablet that one-shot forming has groove.
Another purpose of the embodiment of the invention is to provide a kind of LED-backlit module, and described LED-backlit module adopts above-mentioned PLCC LED.
Another purpose of the embodiment of the invention is to provide a kind of mobile phone, and described mobile phone adopts above-mentioned LED-backlit module.
The embodiment of the invention can not change the thermoelectricity capability of lead frame because the metal tablet that adopts one-shot forming to have groove is made the lead frame of PLCC LED, compares with existing product, and this PLCC LED has splendid radiating effect and electric conductivity; One-time formed groove has increased the walking path of aqueous vapor, guaranteed the waterproof effect of this PLCC LED, and cost is low.
Description of drawings
Fig. 1 is the front view of the LED that provides of the embodiment of the invention;
Fig. 2 is the end view of the LED that provides of the embodiment of the invention;
Fig. 3 is the stereogram of the metal tablet that provides of the embodiment of the invention;
Fig. 4 is Fig. 3 A portion enlarged drawing;
Fig. 5 is the end view of Fig. 4.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention, the lead frame of PLCC LED is made by the metal tablet that one-shot forming has groove, and the PLCC LED of injection mo(u)lding has splendid waterproof and thermoelectricity capability.
The PLCC LED that the embodiment of the invention provides comprise a lead frame, solid crystalline substance be wired in lead frame led chip and with the lead frame injection mo(u)lding be the optics bowl cup and the substrate of one, lead frame forms electrode pin in the substrate two ends, lead frame is made by the metal tablet that one-shot forming has groove.
The LED-backlit module that the embodiment of the invention provides adopts above-mentioned PLCC LED.
The mobile phone that the embodiment of the invention provides adopts above-mentioned LED-backlit module.
Below the specific implementation of the embodiment of the invention is elaborated.
As shown in Figure 1, 2, the PLCC LED that the embodiment of the invention provides comprise a lead frame 1, solid crystalline substance be wired in lead frame 1 led chip 2 and with lead frame 1 injection mo(u)lding be the optics bowl cup 3 and the substrate 4 of one, lead frame 1 forms electrode pin 5 in substrate 4 two ends.
Shown in Fig. 3～5, lead frame 1 is made by one-time formed metal tablet 6, and these metal tablet 6 one-shot formings are fluted, can guarantee that the COC parameter of metal tablet (illustrates the parameters such as TS/YS of respective material, be used for the guide product moulding) validity, and realize that product information is controlled and review.
Concrete, the upper surface one-shot forming of metal tablet 6 has many first grooves 61, and these many first grooves 61 have increased the walking path of aqueous vapor, can stop that aqueous vapor climbs between optics bowl cup 3 and lead frame 1, has waterproof effect.In addition, also strengthened the cohesive force of lead frame 1, promoted the reliability of this PLCCLED with optics bowl cup 3.
Usually, the lower surface of metal tablet 6 also one-shot forming many second grooves 62 are arranged.Similarly, these many second grooves 62 have waterproof effect, strengthen the cohesive force of lead frame 1 and substrate 4, further promote the reliability of this PLCC LED.
Above-mentioned first groove 61 and 62 one-shot formings of second groove are right angle groove.Experiment shows, because aqueous vapor walking manner and inertia, right angle groove has best waterproof effect.
In embodiments of the present invention, the upper surface of lead frame 1 has four first grooves 61, and it all is divided into the both sides of led chip 2.The lower surface of lead frame has two second grooves 62, and it is divided into the both sides of led chip 2.
The preferred copper material in special shape of above-mentioned metal tablet is because of it has preferable thermoelectricity capability.
The embodiment of the invention can not change the thermoelectricity capability of lead frame because the metal tablet that adopts one-shot forming to have groove is made the lead frame of PLCC LED, compares with existing product, and this PLCC LED has splendid radiating effect and electric conductivity; One-time formed groove has increased the walking path of aqueous vapor, guaranteed the waterproof effect of this PLCC LED, and cost is low.Simultaneously,, help to stop that aqueous vapor climbs, further promote the water resistance of this PLCC LED in many right angle grooves of metal tablet one-shot forming.In addition, many grooves have strengthened the bonding effect between plastic cement and the metal tablet, are beneficial to the reliability that promotes this PLCC LED.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. PLCC LED, comprise: a lead frame, solid crystalline substance are wired in the led chip of described lead frame and optics bowl cup and the substrate that is one with described lead frame injection mo(u)lding, described lead frame forms electrode pin in the two ends of described substrate, it is characterized in that described lead frame is made by the metal tablet that one-shot forming has groove.
2. PLCC LED as claimed in claim 1 is characterized in that, the upper surface one-shot forming of described metal tablet has many first grooves.
3. PLCC LED as claimed in claim 2 is characterized in that, the upper surface of the lead frame of being made by described metal tablet has four first grooves, and described four first grooves all are divided into the both sides of led chip.
4. PLCC LED as claimed in claim 2 is characterized in that, the described first groove one-shot forming is a right angle groove.
5. PLCC LED as claimed in claim 1 is characterized in that, the lower surface one-shot forming of described metal tablet has many second grooves.
6. PLCC LED as claimed in claim 5 is characterized in that, the lower surface of the lead frame of being made by described metal tablet has two second grooves, and described two second grooves are divided into the both sides of led chip.
7. PLCC LED as claimed in claim 5 is characterized in that, the described second groove one-shot forming is a right angle groove.
8. as each described PLCC LED of claim 1～7, it is characterized in that described metal tablet is a copper material in special shape.
9. a LED-backlit module is characterized in that, described LED-backlit module adopts as each described PLCC LED of claim 1～7.
10. a mobile phone is characterized in that, described mobile phone adopts LED-backlit module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207645 CN101887943A (en) | 2010-06-22 | 2010-06-22 | PLCC LED, LED backlight module and mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207645 CN101887943A (en) | 2010-06-22 | 2010-06-22 | PLCC LED, LED backlight module and mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101887943A true CN101887943A (en) | 2010-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010207645 Pending CN101887943A (en) | 2010-06-22 | 2010-06-22 | PLCC LED, LED backlight module and mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739274A (en) * | 2019-10-28 | 2020-01-31 | 苏州晶台光电有限公司 | Design method of moisture-proof structure of PLCC SMD outdoor RGB bracket |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913135A (en) * | 2005-08-11 | 2007-02-14 | 安华高科技Ecbuip(新加坡)私人有限公司 | PLCC package with integrated lens and method for making the package |
| US20080012036A1 (en) * | 2006-07-13 | 2008-01-17 | Loh Ban P | Leadframe-based packages for solid state light emitting devices and methods of forming leadframe-based packages for solid state light emitting devices |
| CN201210491Y (en) * | 2008-10-07 | 2009-03-18 | 宁波华龙电子股份有限公司 | Small power triode lead frame version |
| CN101442035A (en) * | 2008-12-14 | 2009-05-27 | 天水华天科技股份有限公司 | Flat non down-lead encapsulation piece and method for producing the same |
-
2010
- 2010-06-22 CN CN 201010207645 patent/CN101887943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913135A (en) * | 2005-08-11 | 2007-02-14 | 安华高科技Ecbuip(新加坡)私人有限公司 | PLCC package with integrated lens and method for making the package |
| US20080012036A1 (en) * | 2006-07-13 | 2008-01-17 | Loh Ban P | Leadframe-based packages for solid state light emitting devices and methods of forming leadframe-based packages for solid state light emitting devices |
| CN201210491Y (en) * | 2008-10-07 | 2009-03-18 | 宁波华龙电子股份有限公司 | Small power triode lead frame version |
| CN101442035A (en) * | 2008-12-14 | 2009-05-27 | 天水华天科技股份有限公司 | Flat non down-lead encapsulation piece and method for producing the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739274A (en) * | 2019-10-28 | 2020-01-31 | 苏州晶台光电有限公司 | Design method of moisture-proof structure of PLCC SMD outdoor RGB bracket |
| CN110739274B (en) * | 2019-10-28 | 2022-01-07 | 苏州晶台光电有限公司 | Design method of moisture-proof structure of PLCC SMD outdoor RGB support |
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Application publication date: 20101117 |