Embonini yokubonisa i-LED, izinga lokuvuselela elijwayelekile kanye nezinga eliphezulu lokuvuselela elimenyezelwe imboni livame ukuchazwa njengezilinganiso zokuvuselela ze-1920HZ ne-3840HZ ngokulandelanayo. Izindlela zokuqalisa ezijwayelekile ziyi-double-latch drive kanye ne-PWM drive ngokulandelanayo. Ukusebenza okuqondile kwesixazululo ngokuyinhloko kungokulandelayo:
[I-IC yomshayeli we-latch ephindwe kabili]: Izinga lokuvuselela elingu-1920HZ, isikali esimpunga esingu-13Bit, umsebenzi wokuqeda isipoki owakhelwe ngaphakathi, umsebenzi wokuqalisa ugesi ophansi ukuze kukhishwe amaphikseli afile neminye imisebenzi;
[I-IC yomshayeli we-PWM]: Izinga lokuvuselela elingu-3840HZ, isibonisi se-grayscale esingu-14-16Bit, umsebenzi wokuqeda isipoki owakhelwe ngaphakathi, ukuqala kukagesi ophansi, nemisebenzi yokususa amaphikseli afile.
Isikimu sokushayela se-PWM sakamuva sinokugqama kwesikali esimpunga esimweni sokuphinda kabili izinga lokuvuselela. Imisebenzi yesekethe edidiyelwe kanye nama-algorithms asetshenziswa emkhiqizweni ayanda futhi ayinkimbinkimbi. Ngokwemvelo, i-chip yomshayeli ithatha indawo enkulu yeyunithi ye-wafer kanye nezindleko eziphakeme.
Kodwa-ke, enkathini yangemuva kobhubhane, isimo somhlaba asizinzile, ukwehla kwamandla emali kanye nezinye izimo zomnotho zangaphandle, abakhiqizi bokubonisa i-LED bafuna ukuqeda ingcindezi yezindleko, futhi bethule imikhiqizo ye-LED yokuvuselela engu-3K, kodwa empeleni sebenzisa umshayeli we-1920HZ wokuvuselela igiya elikabili. chip Uhlelo, ngokunciphisa inani lezindawo zokulayisha ezingwevu kanye neminye imingcele yokusebenza nezinkomba zokusebenza, ngokushintshanisa izinga lokuvuselela elingu-2880HZ, futhi lolu hlobo lwezinga lokuvuselela ngokuvamile lubizwa ngokuthi izinga lokuvuselela elingu-3K ukuze ufune inani lokuvuselela elingenhla ngamanga. 3000HZ ukufanisa i-PWM nesilinganiso sokuvuselela esingu-3840HZ sangempela Uhlelo lokushayela ludida abathengi futhi kusolwa ukuthi ludida umphakathi ngemikhiqizo ewubukhazikhazi.
Ngoba ngokuvamile ukulungiswa kwe-1920X1080 endaweni yokubonisa kubizwa ngokuthi ukulungiswa kwe-2K, futhi ukulungiswa kwe-3840X2160 kubizwa nangokuthi ukulungiswa kwe-4K. Ngakho-ke, izinga lokuvuselela le-2880HZ lididaniswa ngokwemvelo ezingeni lezinga lokuvuselela le-3K, futhi amapharamitha wekhwalithi yesithombe angafinyelelwa ngokuvuselelwa kwangempela kwe-3840HZ akulona i-oda lobukhulu.
Uma usebenzisa i-chip yomshayeli we-LED evamile njengohlelo lokusebenza lwesikrini sokuskena, kunezindlela ezintathu eziyinhloko zokuthuthukisa izinga lokuvuselela okubonakalayo kwesikrini sokuskena:
1. Yehlisa inani lezinkambu ezimpunga zesikali sesithombe:Ngokudela ubuqotho besilinganiso esimpunga sesithombe, isikhathi sokuskena ngakunye ukuze kuqedelwe isibalo sesilinganiso esimpunga siyafinyezwa, ukuze inombolo yezikhathi lapho isikrini sikhanyiswa ngokuphindaphindiwe phakathi nesikhathi sozimele owodwa siyakhuphuka ukuze kuthuthukiswe izinga laso lokuvuselela umbono.
2. Nciphisa ububanzi be-pulse obuncane ukuze ulawule ukuqhutshwa kwe-LED:ngokunciphisa isikhathi senkambu ekhanyayo ye-LED, finyeza umjikelezo wokubala okumpunga kokuskena ngakunye, futhi ukhuphule inani lezikhathi lapho isikrini sikhanyiswa ngokuphindaphindiwe. Kodwa-ke, isikhathi sokuphendula sama-chips omshayeli wendabuko asinakuncishiswa Uma kungenjalo, kuzoba nezimo ezingavamile njengokungalingani okumpunga okuphansi noma ukwakheka kombala ompunga okuphansi.
3. Khawulela inani lama-driver chips axhunywe ochungechungeni:Isibonelo, ekusetshenzisweni kokuskena kwemigqa engu-8, inani lama-driver chips axhunywe kuchungechunge lidinga ukukhawulelwa ukuze kuqinisekiswe ukuthi idatha ingadluliswa ngendlela efanele phakathi nesikhathi esilinganiselwe soshintsho lokuskena okusheshayo ngaphansi kwezinga eliphezulu lokuvuselela.
Isikrini sokuskena sidinga ukulinda idatha yomugqa olandelayo ukuthi ibhalwe ngaphambi kokushintsha ulayini. Lesi sikhathi asikwazi ukufinyezwa (ubude besikhathi bulingana nenani lama-chip), ngaphandle kwalokho isikrini sizobonisa amaphutha. Ngemuva kokudonsa lezi zikhathi, i-LED ingavulwa ngempumelelo. Isikhathi sokukhanyisa sincishisiwe, ngakho-ke phakathi nesikhathi sozimele (isekhondi elingu-1/60), inani lezikhathi zonke izikena ezingakhanyiswa ngazo ngokuvamile lilinganiselwe, futhi izinga lokusebenzisa i-LED aliphezulu (bona isibalo esingezansi). Ukwengeza, ukuklama nokusetshenziswa kwesilawuli kuba nzima kakhulu, futhi umkhawulokudonsa wokucubungula idatha yangaphakathi udinga ukwanda, okuholela ekunciphiseni ukuzinza kwehadiwe. Ngaphezu kwalokho, inani lamapharamitha abasebenzisi abadinga ukuwaqapha liyakhuphuka. Ukuziphatha ngendlela engaqondakali.
Isidingo sekhwalithi yesithombe emakethe sikhula usuku nosuku. Nakuba ama-driver chips amanje anezinzuzo zobuchwepheshe be-S-PWM, kusekhona ibhodlela elingeke linqanyulwe ekusetshenzisweni kwezikrini zokuskena. Isibonelo, umgomo wokusebenza we-chip yomshayeli we-S-PWM okhona uboniswa esithombeni esingezansi. Uma i-chip yomshayeli wobuchwepheshe be-S-PWM ekhona isetshenziselwa ukuklama isikrini sokuskena esingu-1:8, ngaphansi kwezimo ze-16-bit grey scale kanye nemvamisa yokubala ye-PWM engu-16MHz, izinga lokuvuselela okubonakalayo licishe libe ngu-30Hz. Nge-grayscale engu-14-bit, izinga lokuvuselela okubonakalayo licishe libe ngu-120Hz. Nokho, izinga lokuvuselela okubonakalayo lidinga okungenani libe ngaphezu kuka-3000Hz ukuze lihlangabezane nezimfuneko zeso lomuntu ngekhwalithi yesithombe. Ngakho-ke, lapho inani lesidingo lesilinganiso sokuvuselela okubukwayo lingu-3000Hz, ama-chip driver e-LED anemisebenzi engcono ayadingeka ukuze kuhlangatshezwane nesidingo.
Ukuvuselela ngokuvamile kuchazwa ngokuvumelana nenani eliphelele lesilinganiso sozimele womthombo wevidiyo ongu-60FPS. Ngokuvamile, i-1920HZ iphinda izikhathi ezingu-32 izinga lozimele lika-60FPS. Iningi lazo lisetshenziswa esibukweni esiqashwayo, okuyinkambu yokukhanya okuphezulu neqabulayo eliphezulu. Ibhodi leyunithi libonisa ngamabhodi amayunithi e-LED angama-32 ahlola amazinga alandelayo; I-3840HZ iyisilinganiso esiphindwe izikhathi ezingu-64 kunesilinganiso sozimele esingu-60FPS, futhi eziningi zazo zisetshenziswa kumabhodi eyunithi wokubonisa we-LED angama-64 anokukhanya okuphansi nezinga eliphezulu lokuvuselela ezibonisini ze-LED zasendlini.
Kodwa-ke, imojula yokubonisa ngesisekelo sohlaka lwedrayivu ye-1920HZ ikhushulwa ngenkani ibe ngu-2880HZ, edinga indawo yokucubungula ihadiwe engu-4BIT, idinga ukweqa umkhawulo ophezulu wokusebenza kwehadiwe, futhi idinga ukunikela ngenani lezikali ezimpunga. Ukuhlanekezela nokungazinzi.
Isikhathi sokuthumela: Mar-31-2023
