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The nine hotspot technology inventory in the LED industry Which kind of "money" scene?

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(Summary description)SiliconsubstrateLED AsoneofthethreemainroutesofLEDchipsubstratetechnology,siliconsubstratetechnologyhastheadvantagesoflowcost,largesize,highquality,andelectricalconductivitycomparedwithsapphireandsiliconcarbide.Althoughthecurrentsapphiresubstrateandsiliconcarbide(SiC)substratearethemainstreamtechnicalroutesinthemarket,itisdifficulttoachievelarge-scaleepitaxyof8-12inchesduetothelimitationofmaterials.Atpresent,thesapphiresubstrateismorethan6inches.Andtherewillbesomelimitations,andthesiliconsubstratecanbemorethan8inches. Comparedwiththedevelopmenthistoryoftwoforeigntechnologyroutesformorethan20years,thesiliconsubstrateLEDtechnologyhasonlytakentenyearsfromthebeginningofresearchanddevelopmenttotheformationofindustrialclusters,constantlyimproving,constantlysurpassing,andmovingforward.Atpresent,basedonthesiliconsubstrateLEDtechnology,withthecrystalenergyphotoelectricasthecore,throughtheverticalintegrationoftheupper,middleandlowerreaches,thesiliconsubstrateLEDindustrychainwithmorethan10enterpriseshasbeenformedinthecountry,whichhasbeguntobeclusterscaleandradiated.Theeffectisobvious.In2012,theoutputvalueofthesiliconsubstrateLEDindustrychainwas500millionyuan;in2013,theindustrialchainoutputvalueexceeded1billionyuan;in2014,thewholeindustrychainrealizedanoutputvalueof2billionyuan;in2015,theoutputvaluereached5billionyuan,andthenextthreeyearscouldform10billionyuan.Thescaleofproductionvalue. Dr.SunQian,vicepresidentofsilicon-basedLEDresearchanddevelopmentatJingnengOptoelectronics(Jiangxi)Co.,Ltd.saidthatthedevelopmentofGaN-basedhigh-powerLEDson6-inchsiliconsubstratesisexpectedtoreducecostsbymorethan50%. Itcanbeseenthatdrivenbycostadvantages,nitridingLEDchipproductionwillbetransferredfromsapphireorSiCsubstratetosiliconsubstrate.Astechnologycontinuestoadvance,siliconsubstrateswillbecomeamajortechnicalrouteforLEDproductstosignificantlyreduceproductioncostsandincreaseautomatedproduction. CSP Asanewchip-scalepackagingtechnology,CSPhasmanyadvantages.Intheluminairedesign,duetothereducedsize,theluminairedesigncanbemoreflexibleandthestructureismorecompactandsimple.Intermsofperformance,duetothesmalllight-emittingsurfaceofCSPandhighopticaldensitycharacteristics,itiseasytocontrolopticaldirectivity.Theelectrodedesignofflip-chipisusedtomakethecurrentdistributionmorebalanced,suitableforlargercurrentdrive;theDroopeffectissloweddownandreduced.ThelightabsorptionallowstheCSPtohaveroomforfurtherimprovementinlightefficiency.Intermsofprocess,sapphireincreasesthedistancebetweenthephosphorandtheMQWregionofthechip,thephosphortemperatureislower,andthewhitelightconversionefficiencyisalsohigher. AlthoughCSPtechnologyhasmanyadvantages,atpresent,domesticbacklightmanufacturersdonothavemassproduction,andmorearesomewater-testsamples.Fromtheperspectiveofperformanceandreliability,CSPcurrentlyfacesproblemssuchaslowlightefficiency,difficultsoldering,andconsistentcolorandcolor,andhasnotyetmettherequirementsoftheapplication. Inthefuture,withthecontinuousinnovationandimprovementofCSPtechnology,itsperformancewillbeimprovedanditscostwillbereduced.Intheflashlight,carlights,displayscreensandotherfieldshavegreaterdevelopmentspace,creatinggreatervalue,whichcanpredictthatCSPtechnologywillbethefuturedevelopmenttrendofLEDpackaging. UVLED UVLEDgenerallyreferstoinvisiblelightwithasinglewavelengthbelow400nm,alsoknownasultravioletLED.Ithastheadvantagesofgooddirectionalperformance,lowvoltage,greenenvironmentalprotection,wavelengthmeasurable,longlife,lightandflexible,fastswitching,shockandmoistureresistance. UVLEDismainlydividedintoUV-A(320~400nm),UV-B(280~320nm)andUV-C(200~280nm),whichareusedincuring/reducingmachines,etc.inmedical/biologicalfields.Therapeuticapparatusandanalyticalinstruments,inthefieldofsterilization.Atpresent,UVAintheUVLEDmarketaccountsfor90%. Theshorterthewavelength,thelowertheluminousefficiencyoftheultravioletLED,thehigherthepreparationdifficultyandthemoreexpensivetheprice.TheUV-BandUV-CLEDsemitonly10%-20%ofUV-A,andthepriceisabout10timesthatofUV-ALED.DuetothehighthresholdofUVLEDtechnologyandthelackofmaturityofchipandpackagingtechnology,theindustrializationprocessofUV-BandUV-Cisrelativelyslow. WiththecontinuousbreakthroughofkeytechnologiesofdeepultravioletLED(lightemissionwavelengthshorterthan300nm),UVlightsourceisappliedtomanyfieldssuchasdailylife,productionresearch,homelandsecurity,biomedicine,biologicaldetection,all-weathernon-line-of-sightsecuritycommunication. AccordingtotheresearchreportofFrenchmarketresearchcompanyYoleDéveloppement,themarketsizeofUVLEDwillreach270millionUSdollarsby2017,morethan1/3oftheentireUVlightsourcemarket,andthecompoundannualgrowthratecanreach43%withinfiveyears,thusformingUV.Thesituationofmercuryvaporlampsincourt. LEDlightengine WiththeincreasingcompetitioninallaspectsofthedomesticLEDindustrychain,lightengineswithextremelyhighcostperformanceadvantagesareincreasinglyfavoredbylightingcompanies. Accordingtostatisticsfromresearchinstitutions,thescaleofChina'sLEDlightenginemarkethasgrownrapidlyto218millionyuanin2015.Thegrowthrateofthe

The nine hotspot technology inventory in the LED industry Which kind of "money" scene?

(Summary description)SiliconsubstrateLED AsoneofthethreemainroutesofLEDchipsubstratetechnology,siliconsubstratetechnologyhastheadvantagesoflowcost,largesize,highquality,andelectricalconductivitycomparedwithsapphireandsiliconcarbide.Althoughthecurrentsapphiresubstrateandsiliconcarbide(SiC)substratearethemainstreamtechnicalroutesinthemarket,itisdifficulttoachievelarge-scaleepitaxyof8-12inchesduetothelimitationofmaterials.Atpresent,thesapphiresubstrateismorethan6inches.Andtherewillbesomelimitations,andthesiliconsubstratecanbemorethan8inches. Comparedwiththedevelopmenthistoryoftwoforeigntechnologyroutesformorethan20years,thesiliconsubstrateLEDtechnologyhasonlytakentenyearsfromthebeginningofresearchanddevelopmenttotheformationofindustrialclusters,constantlyimproving,constantlysurpassing,andmovingforward.Atpresent,basedonthesiliconsubstrateLEDtechnology,withthecrystalenergyphotoelectricasthecore,throughtheverticalintegrationoftheupper,middleandlowerreaches,thesiliconsubstrateLEDindustrychainwithmorethan10enterpriseshasbeenformedinthecountry,whichhasbeguntobeclusterscaleandradiated.Theeffectisobvious.In2012,theoutputvalueofthesiliconsubstrateLEDindustrychainwas500millionyuan;in2013,theindustrialchainoutputvalueexceeded1billionyuan;in2014,thewholeindustrychainrealizedanoutputvalueof2billionyuan;in2015,theoutputvaluereached5billionyuan,andthenextthreeyearscouldform10billionyuan.Thescaleofproductionvalue. Dr.SunQian,vicepresidentofsilicon-basedLEDresearchanddevelopmentatJingnengOptoelectronics(Jiangxi)Co.,Ltd.saidthatthedevelopmentofGaN-basedhigh-powerLEDson6-inchsiliconsubstratesisexpectedtoreducecostsbymorethan50%. Itcanbeseenthatdrivenbycostadvantages,nitridingLEDchipproductionwillbetransferredfromsapphireorSiCsubstratetosiliconsubstrate.Astechnologycontinuestoadvance,siliconsubstrateswillbecomeamajortechnicalrouteforLEDproductstosignificantlyreduceproductioncostsandincreaseautomatedproduction. CSP Asanewchip-scalepackagingtechnology,CSPhasmanyadvantages.Intheluminairedesign,duetothereducedsize,theluminairedesigncanbemoreflexibleandthestructureismorecompactandsimple.Intermsofperformance,duetothesmalllight-emittingsurfaceofCSPandhighopticaldensitycharacteristics,itiseasytocontrolopticaldirectivity.Theelectrodedesignofflip-chipisusedtomakethecurrentdistributionmorebalanced,suitableforlargercurrentdrive;theDroopeffectissloweddownandreduced.ThelightabsorptionallowstheCSPtohaveroomforfurtherimprovementinlightefficiency.Intermsofprocess,sapphireincreasesthedistancebetweenthephosphorandtheMQWregionofthechip,thephosphortemperatureislower,andthewhitelightconversionefficiencyisalsohigher. AlthoughCSPtechnologyhasmanyadvantages,atpresent,domesticbacklightmanufacturersdonothavemassproduction,andmorearesomewater-testsamples.Fromtheperspectiveofperformanceandreliability,CSPcurrentlyfacesproblemssuchaslowlightefficiency,difficultsoldering,andconsistentcolorandcolor,andhasnotyetmettherequirementsoftheapplication. Inthefuture,withthecontinuousinnovationandimprovementofCSPtechnology,itsperformancewillbeimprovedanditscostwillbereduced.Intheflashlight,carlights,displayscreensandotherfieldshavegreaterdevelopmentspace,creatinggreatervalue,whichcanpredictthatCSPtechnologywillbethefuturedevelopmenttrendofLEDpackaging. UVLED UVLEDgenerallyreferstoinvisiblelightwithasinglewavelengthbelow400nm,alsoknownasultravioletLED.Ithastheadvantagesofgooddirectionalperformance,lowvoltage,greenenvironmentalprotection,wavelengthmeasurable,longlife,lightandflexible,fastswitching,shockandmoistureresistance. UVLEDismainlydividedintoUV-A(320~400nm),UV-B(280~320nm)andUV-C(200~280nm),whichareusedincuring/reducingmachines,etc.inmedical/biologicalfields.Therapeuticapparatusandanalyticalinstruments,inthefieldofsterilization.Atpresent,UVAintheUVLEDmarketaccountsfor90%. Theshorterthewavelength,thelowertheluminousefficiencyoftheultravioletLED,thehigherthepreparationdifficultyandthemoreexpensivetheprice.TheUV-BandUV-CLEDsemitonly10%-20%ofUV-A,andthepriceisabout10timesthatofUV-ALED.DuetothehighthresholdofUVLEDtechnologyandthelackofmaturityofchipandpackagingtechnology,theindustrializationprocessofUV-BandUV-Cisrelativelyslow. WiththecontinuousbreakthroughofkeytechnologiesofdeepultravioletLED(lightemissionwavelengthshorterthan300nm),UVlightsourceisappliedtomanyfieldssuchasdailylife,productionresearch,homelandsecurity,biomedicine,biologicaldetection,all-weathernon-line-of-sightsecuritycommunication. AccordingtotheresearchreportofFrenchmarketresearchcompanyYoleDéveloppement,themarketsizeofUVLEDwillreach270millionUSdollarsby2017,morethan1/3oftheentireUVlightsourcemarket,andthecompoundannualgrowthratecanreach43%withinfiveyears,thusformingUV.Thesituationofmercuryvaporlampsincourt. LEDlightengine WiththeincreasingcompetitioninallaspectsofthedomesticLEDindustrychain,lightengineswithextremelyhighcostperformanceadvantagesareincreasinglyfavoredbylightingcompanies. Accordingtostatisticsfromresearchinstitutions,thescaleofChina'sLEDlightenginemarkethasgrownrapidlyto218millionyuanin2015.Thegrowthrateofthe

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2019-04-28 10:44
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Information

Silicon substrate LED

 

As one of the three main routes of LED chip substrate technology, silicon substrate technology has the advantages of low cost, large size, high quality, and electrical conductivity compared with sapphire and silicon carbide. Although the current sapphire substrate and silicon carbide (SiC) substrate are the mainstream technical routes in the market, it is difficult to achieve large-scale epitaxy of 8-12 inches due to the limitation of materials. At present, the sapphire substrate is more than 6 inches. And there will be some limitations, and the silicon substrate can be more than 8 inches.

 

Compared with the development history of two foreign technology routes for more than 20 years, the silicon substrate LED technology has only taken ten years from the beginning of research and development to the formation of industrial clusters, constantly improving, constantly surpassing, and moving forward. At present, based on the silicon substrate LED technology, with the crystal energy photoelectric as the core, through the vertical integration of the upper, middle and lower reaches, the silicon substrate LED industry chain with more than 10 enterprises has been formed in the country, which has begun to be cluster scale and radiated. The effect is obvious. In 2012, the output value of the silicon substrate LED industry chain was 500 million yuan; in 2013, the industrial chain output value exceeded 1 billion yuan; in 2014, the whole industry chain realized an output value of 2 billion yuan; in 2015, the output value reached 5 billion yuan, and the next three years could form 10 billion yuan. The scale of production value.

 

Dr. Sun Qian, vice president of silicon-based LED research and development at Jingneng Optoelectronics (Jiangxi) Co., Ltd. said that the development of GaN-based high-power LEDs on 6-inch silicon substrates is expected to reduce costs by more than 50%.

 

It can be seen that driven by cost advantages, nitriding LED chip production will be transferred from sapphire or SiC substrate to silicon substrate. As technology continues to advance, silicon substrates will become a major technical route for LED products to significantly reduce production costs and increase automated production.

 

CSP

 

As a new chip-scale packaging technology, CSP has many advantages. In the luminaire design, due to the reduced size, the luminaire design can be more flexible and the structure is more compact and simple. In terms of performance, due to the small light-emitting surface of CSP and high optical density characteristics, it is easy to control optical directivity. The electrode design of flip-chip is used to make the current distribution more balanced, suitable for larger current drive; the Droop effect is slowed down and reduced. The light absorption allows the CSP to have room for further improvement in light efficiency. In terms of process, sapphire increases the distance between the phosphor and the MQW region of the chip, the phosphor temperature is lower, and the white light conversion efficiency is also higher.

 

Although CSP technology has many advantages, at present, domestic backlight manufacturers do not have mass production, and more are some water-test samples. From the perspective of performance and reliability, CSP currently faces problems such as low light efficiency, difficult soldering, and consistent color and color, and has not yet met the requirements of the application.

 

In the future, with the continuous innovation and improvement of CSP technology, its performance will be improved and its cost will be reduced. In the flashlight, car lights, display screens and other fields have greater development space, creating greater value, which can predict that CSP technology will be the future development trend of LED packaging.

 

UVLED

 

UVLED generally refers to invisible light with a single wavelength below 400 nm, also known as ultraviolet LED. It has the advantages of good directional performance, low voltage, green environmental protection, wavelength measurable, long life, light and flexible, fast switching, shock and moisture resistance.

 

UVLED is mainly divided into UV-A (320~400nm), UV-B (280~320nm) and UV-C (200~280nm), which are used in curing/reducing machines, etc. in medical/biological fields. Therapeutic apparatus and analytical instruments, in the field of sterilization. At present, UVA in the UVLED market accounts for 90%.

 

The shorter the wavelength, the lower the luminous efficiency of the ultraviolet LED, the higher the preparation difficulty and the more expensive the price. The UV-B and UV-C LEDs emit only 10%-20% of UV-A, and the price is about 10 times that of UV-ALED. Due to the high threshold of UVLED technology and the lack of maturity of chip and packaging technology, the industrialization process of UV-B and UV-C is relatively slow.

 

With the continuous breakthrough of key technologies of deep ultraviolet LED (light emission wavelength shorter than 300nm), UV light source is applied to many fields such as daily life, production research, homeland security, biomedicine, biological detection, all-weather non-line-of-sight security communication.

 

According to the research report of French market research company Yole Développement, the market size of UVLED will reach 270 million US dollars by 2017, more than 1/3 of the entire UV light source market, and the compound annual growth rate can reach 43% within five years, thus forming UV. The situation of mercury vapor lamps in court.

 

LED light engine

 

With the increasing competition in all aspects of the domestic LED industry chain, light engines with extremely high cost performance advantages are increasingly favored by lighting companies.

 

According to statistics from research institutions, the scale of China's LED light engine market has grown rapidly to 218 million yuan in 2015. The growth rate of the light engine market will remain above 100% in the next two years. By 2017, the scale of China's light engine market will reach 2.832 billion. yuan. The visible light engine has broad market prospects.

 

After years of development, today's LED light engines are an integral combination of LED packages (components), LED arrays (modules), LED drivers and other brightness, thermal, mechanical and electrical components. This not only reduces the R&D expenses of LED lighting manufacturers, but also shortens the product production cycle. At present, the light engines produced by domestic LED companies are mainly used in the field of indoor lighting such as LED downlights, spotlights, and ceiling lamps.

 

At present, due to the lack of standardized and standardized optical components, and the unbalanced development of existing equipment and technology levels of various enterprises, the LED lighting application products appearing on the market have various types, different performances, poor interchangeability, etc. The situation has restricted the healthy development of the LED lighting industry to a certain extent. The emergence of light engine technology has promoted the LED industry to a certain standard to a certain extent.

 

Intelligent lighting

 

The application of intelligent lighting technology can meet the increasing demand for lighting environment and atmosphere. It can set the matching lighting environment according to different environment and time needs, create a comfortable atmosphere and beautify the home living environment.

 

In recent years, more and more international manufacturers have invested in smart lighting technology and application research and development. Whether it is the lighting giant or the Internet arrogant, they are all "wearing their hands" and have a good time. Huawei and Ou Pu to create a smart life, Xiaomi and 13 lighting companies to push smart light bulbs and smart modules, Philips, GE, Apple, Qualcomm also have early layout of intelligent lighting.

 

Nowadays, intelligent lighting has become a must-have product and technology. From this year's Frankfurt exhibition and Guangya exhibition, smart lighting is still a "fragrant", mostly focusing on the display of intelligent lighting systems, paying more attention to user experience.

 

In the future, smart lighting will pay more attention to the need of intelligence from the perspective of consumer demand. Intelligent research around human experience will become the mainstream, based on human behavior, visual effects, visual physiological psychology research, and develop more scientific content. People-oriented, efficient and comfortable intelligent lighting. According to research data, by 2020, the smart lighting market is expected to exceed 8 billion US dollars, showing that there is huge room for market development.

 

Plant lighting

 

As an emerging market, plant lighting is currently used in three areas: plant factories, plant landscapes, and breeding lighting. It is understood that plant lighting used to use traditional lighting fixtures. In the future, high-pressure sodium lamps can be replaced by high-power LEDs, and fluorescent lamps can be replaced by small and medium-power LEDs.

 

Since 2013, the global LED application plant lighting production value has begun to show rapid growth, preliminary statistics reached 100 million US dollars in 2014, expected to reach 500 million US dollars in 2017. As an emerging market, plant lighting has attracted the layout of a large number of international giants. In addition to Philips, Osram, Mitsubishi, Yiguang and other international lighting manufacturers, some domestic lighting manufacturers are gradually participating.

 

Although plant lighting has broad market prospects, its early investment is too high, the investment cycle is long, and the price of LED plant lighting products itself is relatively expensive, which restricts the large-scale promotion of the market. In the future, with the continuous maturity of LED technology and the increase in the penetration rate of global LED application agricultural lighting, the Chinese market is slowly emerging, and the future market prospect is broad.

 

Car lighting

 

In recent years, under the leadership of various lighting giants, the LED industry has entered the stage of price sluggishness, and enterprises have been caught in the "micro-profit" dilemma. In the lighting industry, where profits continue to decline, many companies are seeking to transform and begin to focus more on high-margin areas. In this context, automotive lighting has become a leading point for profit of leading companies by virtue of its high technology threshold and broad market prospects.

 

According to statistics, the market value of LED lighting for interior lighting in 2015 reached US$605 million, and it is estimated that it will rise to US$611 million in 2020. The overall output value will increase slightly in the next five years. Among them, the highest growth is the interior panel, and the estimated annual output growth rate is 3%. In addition, from 2015 to 2020, the LED market output value of automotive exterior lighting has a compound growth rate of 8%, of which 8% of the direction lights and fog lamps have grown, and the headlamp module (far-and-light) LED package output has a compound annual growth rate. Up to 11%.

 

At present, international first-line LED suppliers have gradually reduced the proportion of the backlight and lighting market, and in turn support niche-type applications such as vehicles. The high reliability demand of the car makes the first-line brand enjoy the advantage of monopolizing the market. After the breakthrough of the second-line brand LED quality, there is an opportunity to break the monopoly situation. In the next five years, the automotive LED market will flourish with the participation of more manufacturers.

 

LED filament light

 

In 2016, the most popular product in the LED lighting market is the filament lamp. From the international strength of Philips and GE to the high-profile layout of domestic giants Mulinsen and Jingdian, LED filament lamps have finally ushered in a real "counterattack" this year after market testing in recent years.

 

Since its inception in 2008, LED filament lamps have long suffered from heat dissipation, low power and high prices, which is why they have not been favored by the market for a long time. Until the second half of 2015, the bottleneck of LED filament lamp technology was broken with the intervention of linear constant current driver IC, coupled with the gradual maturity matching of chips, packaged devices, phosphors, substrates and other materials and equipment, the development of filament lamps rose to new stage.

 

In the future, with the increase in the demand for LED filament lamps, the automation of production and the increase in production capacity of manufacturers, the future price is expected to “lower”. The key is to break through the “bottleneck” of filament lamps and let the market be in a benign development state.

 

LIFI

 

We know that the industrialization of visible light communication is inseparable from the LED industry. On the one hand, LED is a reliable source of visible light communication, and it is also the basis for the rapid development of this technology; on the other hand, with the increase of the penetration rate of LED market, intelligent lighting is increasingly becoming the mainstream of the market, and wide-band wireless network access possessed by visible light communication. The advantages will be more significant.

 

Visible light communication is a wireless optical communication technology that uses LED as a communication light source. It has the characteristics of high communication rate, good security performance, no electromagnetic radiation, etc. It can effectively solve the congestion of communication networks in densely populated places, incomplete network coverage, and wireless communication in electromagnetic shielding places. Difficulties and other issues. Therefore, it can be foreseen that visible light communication is an important supplement to the existing wireless communication methods, and has broad application prospects in the fields of aerospace, military equipment, deep sea exploration, industrial internet, indoor communication positioning and the like.

 

According to market research institutions, the global Li-Fi industry market will grow to at least $9 billion by 2020. Nakamura Shuji also boldly predicted: "The next killer application in the LED industry is visible light communication (LiFi). In the future, the home lighting will become the information transmission device that will open the last road because it can carry communication signals."

 

Today, LIFI is in its infancy in the country. Due to the immature technology and the lack of a complete industrial chain, there are still uncertainties in the market and cost. Therefore, most LED manufacturers are in a close watch on the LIFI project.

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