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时间:2019-01-31
《高压led发光效率的分析以与结温的优化》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ContentsContentsAbstract.⋯⋯⋯⋯⋯⋯⋯..........................⋯⋯⋯⋯...................................⋯....IContents.......................⋯.....⋯⋯⋯⋯⋯⋯.....⋯..............⋯....⋯.....⋯⋯⋯⋯..VI::】【I.1Introductions.............⋯.....⋯............................................⋯............】【】
2、【.1HistroyandstatusquoofLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.2IntroductionsonLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..21.2.1PrinciplesofLEDemission⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..21.2.2StructuresofLEDs..................................................................................31.2.2.1Manufactureproces
3、sesofLEDchips⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31.2.2.1MainpackagingtechniqueofLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..31.3IntroductiontoLEDmeasuringmethodology⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41.3.1Measuringtechnologyofphotometryandchromaticity⋯⋯⋯⋯⋯⋯⋯⋯.41.3.2Measuringtechonlogyofthermodynamics⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51.4Introductionsofhi
4、gh-voltageLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。61.4.1Manufactureprocessesofhigh—voltageLEDchips⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..61.4.1Comparisonsofhi曲一voltageLEDandotherLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯71.5Topicbasisandmainworks⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯81.!;.1Topicbasis⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..81.!;.:!Mainworks⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
5、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯8CH.2Comparisonsofluminousefficiency⋯........................................102.1Introductions⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.102.2Approachestoimproveluminousefficiency⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..112.2.1Distributedbraggreflector⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..112.2.2Transparentsubstrate⋯⋯
6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.112.2.3Surfaceroughingtreatments⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..122.:!.4Flip.chipLEDs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..132.3Experiments⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯142.4Resultsanddiscussions⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯152.4.1Influencesofcurrentdensitydistribution⋯⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯162.4.2Influencesoflightfromthemicrochips’gaps⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..172.4.3Influencesoftemperature⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯182.5Conclusions⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.19CH.3Optimizationofjunctiontemperature..................................⋯...203.1Introductions⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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