TFTLCD背光模组画面检验抽样方案优化

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1、上海交通大学硕士学位论文TFT-LCD背光模组画面检验抽样方案优化姓名：梁宝峰申请学位级别：硕士专业：机械工程指导教师：王丽亚;陈元铭20071001THEOPTIMUMOFSAMPLINGPLANOFTFT-LCDBACKLIGHTUNITFINALDISPLAYINSPECTIONABSTRACTNow,BLUMmanufacturingdepartmentinInnoLuxDisplaycorporationchoosethefinaldisplayinspectionmodelofpercentageof2out9(receiveddefectquantityC=0

2、).Bydifferentreceivedprobabilityofinspectionlot,therearetwofaultsinthefinaldisplayinspectionmodelofpercentageasbelow:1.Thevariationoflotwillinfluencetheguaranteedegreeofproductquality(alargelotstrict,asmalllotloose);2.Unabletoadjustthesamplingplanappropriatelyaccordingtoprocesscapability.F

3、orthisreason,itisnecessarytostudythesamplingplanofbacklightunit.Weshouldfoundaseriesdynamicsamplingplanwhichbaseonmanufacturingprocesscapabilityofbacklightunit.Inorderthatwecanadoptthesamplingplanofadequatepowertoholdupdefectlotandensurethequalitylevelofproductmorethancustomer’srequirement

4、swhenwecarryoutprocessimprovement.Thestudyprocessofthissubjectincludesthreestepsasbelow:1.Foundalarmmodeltomonitorstabilityofprocess2.Foundadynamicsamplingplanmodelofadequatepower3.FoundaquantificationperformanceevaluationmodelTakingaccountofthecharacteristicofbacklightunitprocess,weregard

5、eddesignofdynamicsamplingmodelanddesignofevaluationmodelasbasictask.Ourresearchincludeanalysisofprocessstability,optimumdesignofinspectionlotsize,foundationofprocessmonitoringmodel,foundationofbasicIIsamplinggroup,foundationofrelationshipbetweenprocessindex(Cp)andbasicsamplingplanandevalua

6、tionoftwosamplingplan.Inevaluationphase,wegetaresultbythemethodofP-Valuehypotheses.Fromresultofevaluation,weverifiedthatdynamicsamplingplanismoreexcellentthanpercentagesamplingplan.Finally,wepickedupasamplingplanforinspectionofbacklightunit.Keywords:backlightunit(B/L)，samplingPlan，acceptab

7、lelevel(AQL)，processcapabilityindex(Cp)，OCcurve(OperatingCharacteristicCurve)，hypothesesIII附件四上海交通大学学位论文原创性声明本人郑重声明：所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的作品成果。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标明。本人完全意识到本声明的法律结果由本人承担。学位论文作者签名：梁宝峰日