Izikrini zokubonisa ze-LED zivame kakhulu empilweni futhi ziletha ukunethezeka okuningi ezimpilweni zethu.Njengoba ukukhanya kwesikrini se-LED kungenakushintshwa ngokukhanya okuzungezile, kunenkinga yokubonisa okungacacile emini noma ukucwazimula ebusuku ngenxa yokukhanya kakhulu.Uma ukukhanya kungalawuleka, akuwona amandla kuphela angagcinwa, kodwa futhi umphumela wokubonisa wesikrini ungenziwa ucace kakhudlwana.
I-01led iwumthombo wokukhanya okuluhlaza, inzuzo yawo enkulu ukusebenza kahle okuphezulu kokukhanya
Ngokuthuthuka nokuthuthuka kwesayensi yezinto ezibonakalayo, ukusebenza kahle okukhanyayo kuzothuthukiswa kakhulu eminyakeni eyi-10 ezayo;ukusetshenziswa kwamandla okuphansi, impilo yesevisi ende, izinto ezigaywa kabusha, futhi akukho ukungcoliswa kwemvelo.Nakuba izwe lethu laqala sekwephuzile, eminyakeni yamuva nje seliqale ucwaningo olusebenzayo nokuthuthukiswa kanye nezinqubomgomo nokwesekwa kwezimboni.Uma kuqhathaniswa nesibani se-incandescent, i-LED inomehluko omkhulu: ukukhanya kokukhanya ngokuyisisekelo kuhambisana nobukhulu bamanje obuhamba phambili obugeleza ku-diode ekhipha ukukhanya.Ngokusebenzisa lesi sici, ukukhanya kwendawo ezungezile kukalwa ngenzwa yokubona, ukukhanya okukhanyayo kushintsha ngokwenani elilinganiselwe, futhi nomthelela wezinguquko zokukhanya kwendawo ezungezile uyagcinwa, futhi ukwakhiwa kudlulisa abantu ukuthi basebenze ngenjabulo.Lokhu akugcini nje ukudala indawo ekhululekile enokukhanya okuqhubekayo, kodwa futhi kusebenzisa ngokugcwele ukukhanya kwemvelo futhi kusindisa kakhulu amandla.Ngakho-ke, ucwaningo lwe-LED adaptive dimming technology lubaluleke kakhulu.
02 izimiso eziyisisekelo
Lo mklamo usebenzisa ikholomu ukuthumela idatha kanye nendlela yokuskena irowu ukuze kubonakale umbhalo noma isithombe sesibonisi se-LED.Le ndlela ihlanganiswa nesekhethi yezingxenyekazi zekhompuyutha ukuze kufinyelelwe inhloso yokukhanya okuphelele okulinganayo kwesikrini sokubonisa.Sebenzisa isici esibucayi se-photoresistor ekukhanyeni kwe-ambient, qoqa ukuguqulwa kokukhanya okuzungezile, ukuguqulele kusignali kagesi bese uyithumela ku-microcomputer ye-single-chip, i-single-chip processor yenza ukucubungula isignali, futhi ilawula isilinganiso somsebenzi wokuphumayo. Igagasi le-PWM ngokomthetho othile.Isekhethi yesilawuli se-switch voltage yengezwa phakathi kwe-single-chip microcomputer kanye nesikrini esibonisiwe esiholelekile ukuze kubonwe ukulungiswa kokukhanya kwesikrini nge-single-chip microcomputer.Igagasi le-PWM elilungisiwe lisetshenziselwa ukulawula isekethe yesilawuli se-voltage eshintshayo ukuze kulungiswe i-voltage yokufaka yesikrini sokubonisa, futhi ekugcineni ibone ukulawula ukukhanya kwesikrini sokubonisa.
03Izici
Isekhethi yokulawula ukukhanya eguquguqukayo yesikrini sokubonisa se-diode ekhipha ukukhanya, ebonakala ngokuhlanganisa: idivayisi yokufaka inani elimisiwe lomjikelezo womsebenzi, ikhawunta nesiqhathanisi sobukhulu, lapho isibali kanye nedivayisi yokufaka inani lomjikelezo womsebenzi osethwe kusengaphambili ibala inani ngokulandelanayo iqhathaniswa nevelu emisiwe yomjikelezo womsebenzi kusiqhathanisi sosayizi ukuze kulawulwe inani lokuphumayo lesiqhathanisi.
04LED i-adaptive dimming system design design
Ukukhanya kwe-LED kuhambisana nokugeleza kwamanje kuyo eya phambili, futhi usayizi wamanje wangaphambili ungashintshwa ukuze ulungise ukukhanya kwe-LED.Njengamanje, ukukhanya kwe-LED ngokuvamile kulungiswa ngokulungisa imodi yamanje yokusebenza noma imodi yokushintshashintsha kobubanzi be-pulse.Eyangaphambili inobubanzi obukhulu bokulungisa, ukuhleleka okuhle, kodwa ukusetshenziswa kwamandla okuphezulu.Ngakho akuvamile ukusetshenziswa.Indlela yokuguqula ububanzi be-pulse isebenzisa imvamisa ephezulu ukushintsha amaledi, imvamisa yokushintsha ingaphezu kobubanzi abantu abangabubona, ukuze abantu bangezwa ukuba khona kwe-stroboscopic.Bona ukufiphala okuguquguqukayo kwe-LED.