Isibonisi se-elekthronikhi se-LED sinamaphikseli amahle, kungakhathaliseki ukuthi imini noma ubusuku, ilanga noma izinsuku zemvula,Isibonisi se-LEDingavumela izethameli ukuthi zibone okuqukethwe, ukuhlangabezana nesidingo sabantu sesistimu yokubonisa.
Ubuchwepheshe bokuthola isithombe
Umgomo oyinhloko wesibonisi se-elekthronikhi se-LED ukuguqula amasiginali edijithali abe amasiginali wesithombe futhi awethule ngohlelo olukhanyayo.Indlela evamile ukusebenzisa ikhadi lokuthwebula ividiyo elihlanganiswe nekhadi le-VGA ukuze kuzuzwe umsebenzi wokubonisa.Umsebenzi oyinhloko wekhadi lokutholwa kwevidiyo ukuthwebula izithombe zevidiyo, futhi uthole amakheli ezinkomba zefrikhwensi yomugqa, imvamisa yenkundla namaphoyinti ephikseli nge-VGA, futhi uthole amasignali edijithali ikakhulukazi ngokukopisha ithebula lokubheka umbala.Ngokuvamile, isofthiwe ingasetshenziselwa ukuphindaphinda kwesikhathi sangempela noma ukwebiwa kwehadiwe, uma kuqhathaniswa nokwebiwa kwehadiwe kusebenza kahle kakhulu.Kodwa-ke, indlela yendabuko inenkinga yokuhambisana ne-VGA, okuholela emiphethweni efiphele, ikhwalithi yesithombe empofu nokunye, futhi ekugcineni kulimaze ikhwalithi yesithombe sokuboniswa kwe-elekthronikhi.
Ngokusekelwe kulokhu, ochwepheshe bezimboni bakha ikhadi levidiyo elizinikele le-JMC-LED, umgomo wekhadi usekelwe ebhasini le-PCI lisebenzisa i-accelerator yehluzo engu-64-bit ukuze kuthuthukiswe imisebenzi ye-VGA nevidiyo ibe yinto eyodwa, kanye nokufeza idatha yevidiyo nedatha ye-VGA yakha umphumela we-superposition, izinkinga zokuhambisana zangaphambilini zixazululwe ngempumelelo.Okwesibili, ukutholwa kwesinqumo kusebenzisa imodi yesikrini esigcwele ukuze kuqinisekiswe ukulungiselelwa okugcwele kwe-Engeli yesithombe sevidiyo, ingxenye yonqenqema ayisenaphutha, futhi isithombe singakalwa ngokungafanele futhi sihanjiswe ukuze sihlangabezane nezimfuneko zokudlala ezihlukile.Okokugcina, imibala emithathu ebomvu, eluhlaza okotshani kanye nohlaza okwesibhakabhaka ingahlukaniswa ngempumelelo ukuze ihlangabezane nezimfuneko zesikrini esiboniswa ngogesi esinombala weqiniso.
2. Ukukhiqizwa kombala wesithombe sangempela
Umgomo wesibonisi esinombala ogcwele we-LED ufana nekamabonakude ngokusebenza kokubukwayo.Ngokusebenzisa inhlanganisela ephumelelayo yemibala ebomvu, eluhlaza okwesibhakabhaka nohlaza okwesibhakabhaka, imibala ehlukene yesithombe ingabuyiselwa futhi yenziwe kabusha.Ukuhlanzeka kwemibala emithathu ebomvu, eluhlaza okwesibhakabhaka kanye nohlaza okwesibhakabhaka kuzothinta ngokuqondile ukukhiqizwa kombala wesithombe.Kumele kuqashelwe ukuthi ukukhiqizwa kwesithombe akuyona inhlanganisela engahleliwe yemibala ebomvu, eluhlaza okwesibhakabhaka, kodwa isisekelo esithile siyadingeka.
Okokuqala, isilinganiso sokuqina kokukhanya kokubomvu, okuluhlaza okotshani nokuluhlaza kufanele sisondele ku-3:6:1;Okwesibili, uma kuqhathaniswa neminye imibala emibili, abantu banokuzwela okuthile kokubomvu embonweni, ngakho-ke kuyadingeka ukusabalalisa ngokulinganayo okubomvu endaweni yokubonisa.Okwesithathu, ngenxa yokuthi umbono wabantu uphendula ijika elingaqondile lokukhanya okubomvu, okuluhlaza okotshani nokuluhlaza okwesibhakabhaka, kuyadingeka ukulungisa ukukhanya okukhishwa ngaphakathi kwe-TV ngokukhanya okumhlophe okunobukhulu obuhlukile bokukhanya.Okwesine, abantu abahlukene banamakhono ahlukene wokuxazulula imibala ngaphansi kwezimo ezihlukene, ngakho-ke kuyadingeka ukuthola izinkomba zenhloso yokuzala kabusha kombala, ngokuvamile ezimi kanje:
(1) Ubude begagasi obubomvu, obuluhlaza kanye nohlaza okwesibhakabhaka babungu-660nm, 525nm no-470nm;
(2) Ukusetshenziswa kweyunithi ye-tube engu-4 enokukhanya okumhlophe kungcono (amashubhu angaphezu kwama-4 angakwazi futhi, ikakhulukazi kuncike ekukhanyeni kokukhanya);
(3) Izinga elimpunga lemibala emithathu eyinhloko lingama-256;
(4) Ukulungiswa okungaqondile kufanele kwamukelwe ukuze kucutshungulwe amaphikseli e-LED.
Uhlelo lokulawula ukusatshalaliswa kokukhanya okubomvu, okuluhlaza okwesibhakabhaka nokuluhlaza okwesibhakabhaka kungenziwa ngohlelo lwehadiwe noma ngesoftware ehambisanayo yesistimu yokudlala.
3. okukhethekile ngokoqobo drive circuit
Kunezindlela ezimbalwa zokuhlukanisa ishubhu ye-pixel yamanje: (1) umshayeli wokuskena;(2) DC drive;(3) njalo umthombo wamanje drive.Ngokwezidingo ezahlukene zesikrini, indlela yokuskena ihlukile.Esikrinini se-lattice block yasendlini, imodi yokuskena isetshenziswa kakhulu.Esikrinini seshubhu lephikseli langaphandle, ukuze kuqinisekiswe ukuzinza nokucaca kwesithombe saso, imodi yokushayela ye-DC kufanele yamukelwe ukuze kwengezwe igagasi elingaguquki kudivayisi yokuskena.
I-LED yasekuqaleni yayisetshenziswa ikakhulukazi uchungechunge lwesiginali ye-voltage ephansi kanye nemodi yokuguqula, le modi inamalungu amaningi e-solder, izindleko eziphezulu zokukhiqiza, ukwethembeka okwanele kanye nokunye ukushiyeka, lokhu kushiyeka kukhawulele ukuthuthukiswa kwesibonisi se-elekthronikhi ye-LED esikhathini esithile.Ukuze kuxazululwe lezi ziphambeko ezingenhla zesibonisi se-elekthronikhi se-LED, inkampani yase-United States ithuthukise isekethe ehlanganisiwe eqondene nesicelo, noma i-ASIC, ekwazi ukubona ukuguqulwa okuhambisanayo nokushayela kwamanje kube yinto eyodwa, isekethe ehlanganisiwe inezici ezilandelayo. : amandla okushayela okukhiphayo okufanayo, ukushayela isigaba samanje kuze kufike ku-200MA, i-LED ngalesi sisekelo ingaqhutshwa ngokushesha;Ukubekezelelana okukhulu kwamanje kanye ne-voltage, ububanzi obubanzi, ngokuvamile kungaba phakathi kokukhetha okuguquguqukayo okungu-5-15V;I-serial-parallel output current inkulu, ukungena nokuphumayo kwamanje kukhulu kune-4MA;Ijubane elisheshayo lokucubungula idatha, lifanele umsebenzi wamanje wesibonisi se-LED esinombala omningi ompunga.
4. ukulawula ukukhanya kwe-D/T ubuchwepheshe bokuguqula
Isibonisi sikagesi se-LED sakhiwe ngamaphikseli amaningi azimele ngohlelo nokuhlanganiswa.Ngokusekelwe esicini sokuhlukanisa amaphikseli ukusuka kwelinye, isibonisi se-elekthronikhi se-LED singanweba kuphela imodi yayo yokulawula ekhanyayo ngamasignali edijithali.Uma i-pixel ikhanyisiwe, isimo sayo esikhanyayo silawulwa ikakhulukazi isilawuli, futhi ishayelwa ngokuzimela.Uma ividiyo idinga ukwethulwa ngombala, kusho ukuthi ukukhanya nombala wephikseli ngayinye udinga ukulawulwa ngempumelelo, futhi umsebenzi wokuskena udinga ukuqedwa ngokuhambisanayo phakathi nesikhathi esishiwo.
Ezinye izibonisi ezinkulu ze-elekthronikhi ze-LED zakhiwe amashumi ezinkulungwane zamaphikseli, okwandisa kakhulu inkimbinkimbi enqubweni yokulawula umbala, ngakho-ke izidingo eziphezulu zibekwe phambili ukuze kudluliselwe idatha.Akunangqondo ukusetha i-D/A yephikseli ngayinye kunqubo yokulawula yangempela, ngakho-ke kuyadingeka ukuthola isikimu esingalawula ngempumelelo isistimu yephikseli eyinkimbinkimbi.
Ngokuhlaziya isimiso sombono, kutholakala ukuthi ukukhanya okumaphakathi kwephikseli kuncike ikakhulukazi esilinganisweni sayo sokucisha ngokukhanyayo.Uma isilinganiso se-bright-off silungiswa ngempumelelo kuleli phuzu, ukulawula okuphumelelayo kokukhanya kungafinyelelwa.Ukusebenzisa lesi simiso kuzibonisi zikagesi ze-LED kusho ukuguqula amasignali edijithali abe amasignali esikhathi, okungukuthi, ukuguqulwa phakathi kwe-D/A.
5. Ukwakhiwa kabusha kwedatha nobuchwepheshe bokugcina
Njengamanje, kunezindlela ezimbili eziyinhloko zokuhlela amaqembu enkumbulo.Enye indlela ye-pixel eyinhlanganisela, okungukuthi, wonke amaphuzu e-pixel esithombeni agcinwa emzimbeni owodwa wenkumbulo;enye indlela ye-bit plane, okungukuthi, wonke amaphuzu e-pixel esithombeni agcinwa emizimbeni yenkumbulo ehlukene.Umthelela oqondile wokusetshenziswa okuningi kwendikimba yesitoreji ukuthola ulwazi oluhlukahlukene lwephikseli ngesikhathi.Phakathi kwezakhiwo ezimbili ezingenhla zokugcina, indlela yendiza encane inezinzuzo eziningi, okungcono ekuthuthukiseni umphumela wokubonisa wesikrini se-LED.Ngokusebenzisa umjikelezo wokwakhiwa kabusha kwedatha ukuze kufinyelelwe ukuguqulwa kwedatha ye-RGB, isisindo esifanayo esinamaphikseli ahlukene siyahlanganiswa futhi sibekwe esakhiweni sokulondoloza esiseduze.
6. Ubuchwepheshe be-ISP ekwakhiweni kwesekethe ye-logic
Isekhethi yokulawula isibonisi se-elekthronikhi ye-LED yendabuko iklanywe ngokuyinhloko yisekethe yedijithali evamile, ngokuvamile elawulwa yinhlanganisela yesekethe yedijithali.Ngobuchwepheshe bendabuko, ngemva kokuqedwa kwengxenye yokuklama isifunda, ibhodi lesifunda lenziwa kuqala, futhi izingxenye ezifanele zifakiwe futhi umphumela ulungiswa.Lapho umsebenzi we-logic yebhodi lesifunda ungakwazi ukuhlangabezana nesidingo sangempela, udinga ukwenziwa kabusha uze uhlangabezane nomphumela wokusebenzisa.Kungabonakala ukuthi indlela yokuklama yendabuko ayinayo kuphela izinga elithile lesimo esiphuthumayo, kodwa futhi inomjikelezo omude wokuklama, othinta ukuthuthukiswa okuphumelelayo kwezinqubo ezihlukahlukene.Uma izingxenye zehluleka, ukunakekelwa kunzima futhi izindleko ziphezulu.
Ngalesi sisekelo, i-system programmable technology (ISP) yavela, abasebenzisi bangaba nomsebenzi wokuguqula ngokuphindaphindiwe izinhloso zabo zokuklama kanye nesistimu noma ibhodi lesifunda nezinye izingxenye, beqaphela inqubo yohlelo lwabaklami behadiwe ohlelweni lwesofthiwe, uhlelo lwedijithali ku isisekelo sobuchwepheshe bokuhleleka kwesistimu sithatha ukubukeka okusha.Ngokwethulwa kobuchwepheshe bokuhleleka kwesistimu, akufinyezwanga nje kuphela umjikelezo wokuklama, kodwa futhi ukusetshenziswa kwezingxenye kunwetshwa kakhulu, ukugcinwa kwensimu nemisebenzi yemishini eqondiwe kwenziwa lula.Isici esibalulekile sobuchwepheshe obuhlelekayo besistimu ukuthi ayidingi ukucabangela ukuthi idivayisi ekhethiwe inalo yini umthelela lapho isebenzisa isofthiwe yesistimu ukufaka ingqondo.Ngesikhathi sokufaka, izingxenye zingakhethwa ngokuthanda kwakho, futhi izingxenye ezibonakalayo zingakhethwa.Ngemva kokufaka sekuqediwe, ukuzivumelanisa nezimo kungenziwa.
Isikhathi sokuthumela: Dec-21-2022
