Qhov ntev tshaj plaws uas koj tuaj yeem pom ntawm txoj kev yog LED zaub. Nrog rau txoj kev loj hlob sai ntawm tib neeg, LED zaub tau ua tiav rau hauv peb lub neej txhua hnub. Lub semiconductor digital raj yog tsim los ntawm xya strip LED chips teem raws li qhia hauv daim duab 12. Nws cov qauv tshwj xeeb suav nrog "reflector type", "strip xya-segment type" thiab "sible-chip integrated multi-digit digital type". YONGS LED zaub yuav qhia nws cov qauv rau txhua tus.
(1) Lub raj matrix (lub teeb-emitting diode dot matrix) kuj tuaj yeem tsim los ntawm cov txheej txheem zoo ib yam li monolithic integrated multi-digit digital zaub.
(2) Lub sawb-zoo li xya-seem digital raj belongs rau daim ntawv sib xyaw ua ke. Nws yog los faib cov gallium phosphide los yog gallium phosphide wafer uas tau npaj raws li kev tuag rau hauv ib los yog ob peb LED teeb-emitting strips, thiab tom qab ntawd lo tib yam xya strips ntawm Japanese-zoo li tus "Kovar" thav duab, thiab siv lub siab welding. txheej txheem txuas cov hlau lead hauv thiab encapsulates lawv nrog epoxy resin.
(3) Ib qho-chip sib xyaw ua ke ntau tus lej digital zaub yog nyob rau ntawm cov khoom siv luminescent substrate (loj wafer), siv cov cuab yeej siv hluav taws xob sib xyaw ua ke los tsim ntau tus lej ntawm xya-seg digital cov duab duab, xaiv cov chips tsim nyog los ntawm dicing, thiab ua raws lawv. ntawm lub tshuab luam ntawv. Nyob rau ntawm lub rooj tsavxwm, coj tawm cov kev coj los ntawm cov txheej txheem vuam siab, thiab tom qab ntawd npog lub plhaub "fisheye lens" ntawm nws. Lawv tsim nyog siv hauv cov ntsuas me me.
(4) Cov txheej txheem tsim khoom ntawm cov cim raj thiab cov raj 'meter' zoo ib yam li cov raj digital.
(5) Lub ntsej muag npog hom digital raj feem ntau yog ua los ntawm cov yas dawb rau hauv lub plhaub xya ntu nrog cov kab noj hniav, thiab ib qho LED tau muab tso rau ntawm lub rooj tsav xwm luam ntawv uas tau ua raws li xya qhov kab noj hniav ntawm lub ntsej muag npog, thiab hauv qab ntawm txhua qhov kev pom kab noj hniav yog Qhov chaw nruab nrab yog LED nti. Ua ntej txhim kho lub reflector, txuas lub φ30μm silicon-aluminium hlau los yog hlau lead ntawm cov nti thiab cov hlau sib txuas ntawm cov ntawv luam tawm los ntawm kev siv vuam siab, poob epoxy resin rau hauv lub reflector, thiab tom qab ntawd txuas cov ntawv luam tawm nrog cov nti. Lub rooj tsavxwm yog ua raws li cov reflector thiab tom qab ntawd kho.
Txoj kev encapsulation ntawm lub reflector hom digital raj muaj ob hom: khoob foob thiab khoom foob. Cov txheej txheem encapsulation khoom siv epoxy resin ntawm tus neeg sawv cev tawg thiab zas, uas feem ntau yog siv hauv ib- lossis ob-ntsis li. Txoj kev cua-sealing yog los npog cov lim thiab homogenizing zaj duab xis rau saum. Txhawm rau txhim kho kev ntseeg tau ntawm cov cuab yeej, cov nti thiab cov phaj hauv qab yuav tsum tau coated nrog pob tshab insulating kua nplaum, uas tuaj yeem txhim kho lub teeb pom kev zoo. Txoj kev no feem ntau yog siv rau cov duab digital (lossis cov cim qhia) uas muaj ntau tshaj plaub tus lej.
