Leliphi izinga lokuhlaziya isikrini seTV kwaye leliphi elingcono?

Iparameter enje njengesantya sokuhlaziya isikrini seTV sisigqibo kwabo bafuna ukusebenzisa itekhnoloji ngokukhuselekileyo emehlweni abo kwaye bafumane umfanekiso okumgangatho ophezulu. I-track frequency (hertz) ibonakaliswe kwimiyalelo yayo nayiphi na i-TV okanye i-monitor, njengoko inquma ukuba kuya kukhululeka ukusebenza okanye ukubukela iinkqubo ixesha elide. Ukuze wenze ukhetho olufanelekileyo, kucetyiswa ukuba ufunde ngokucophelela zonke iimpawu, wenze uthelekiso nge-hertz. Oku kuya kukunceda uqonde ukuba sesiphi isilathisi esifanelekileyo kumsebenzisi othile.

Yintoni i-frequency yokutshayela, sithetha ngantoni, zeziphi iintlobo ze-hertz ezisetyenziswa kwiiTV

Ngaphambi kokuphonononga kwiimpawu zombono, kufuneka uzenzele isigqibo malunga nenqanaba lokuhlaziya isikrini, ukuba lichaphazela ntoni, kutheni lithathelwa ingqalelo ngabavelisi. Umenzi ngamnye, othatha indlela enoxanduva lomsebenzi wabo, ubonisa iiparitha zokuhlaziya ngokuthe ngqo kwisixhobo, kwimiyalelo okanye kwipakethe. Awona maxabiso aceliweyo okuhlaziya ngala:

• 60Hz.
• 120 kunye ne-100 Hz.
• 240 Hz.

Iimonitha zangoku kunye noomabonakude nabo banokhetho olulingana no-480 Hz. Kubalulekile ukucacisa kuqala ukuba yintoni i-hertz kwi-TV kwaye yintoni emisela izinga lokuhlaziya. Ngamagama alula, eli linani elithile lamaxesha ngomzuzwana xa umfanekiso uhlaziywa kwiscreen seTV okanye kwikhompyuter. Umzekelo, xa kubhengezwa i-60 Hz, ngoko umfanekiso (umfanekiso obonwa ngumntu) uhlaziywa ngamaxesha angama-60 ngomzuzwana. Kubalulekile ukuqonda ukuba ukuphakama kweqondo lokuhlaziya, ngcono umfanekiso uya kuba, kwaye uya kuqondwa kakuhle. Kwimeko yeTV, ukhetho lunikezelwa kolu khetho lulandelayo:

1. Ubuchwephesha be-LCD luphuhliso lokuqala oluveliswe koomabonakude beLCD kunye neemonitha. Ukuqulunqwa komfanekiso kule meko kuqhutyelwa ngokusebenzisa ukukhanya okukhethekileyo kwe-fluorescent backlight, ebizwa ngokuba yiCCFL. Izixhobo ezinjalo ziyakwazi ukunika umgangatho womfanekiso ophakathi. Xa ukhetha le matrix, kufuneka uthathele ingqalelo ukuba ukuze ugweme i-flicker, kufuneka ukhethe i-TV nge-100 Hz nangaphezulu.
2. Ii- LED ziimatrix  ze-LCD eziphucukileyo. IiTV kunye nabahloli kule meko zongezwa ngenkqubo yokukhanyisa umfanekiso omtsha usebenzisa iidiode ze-LED ezithembekileyo nezisebenzayo. Zinochaso oluphezulu. Kuyimfuneko ukunikela ingqalelo kwinto yokuba ukubekwa kweediode kwindawo yesikrini kunokwahluka. Oku kugqiba umgangatho wokugqibela womfanekiso. Ibhalwe kwizixhobo njenge “I-LED egcweleyo”, “i-LED yokwenyani” okanye “i-LED ngqo”. Kule meko, i-backlight iya kusasazwa ngokulinganayo kuyo yonke indawo yesikrini okanye esweni. Ukuba “Edge LED” kubonisiwe, oku kuthetha ukuba diodes ibekwe kuphela kwiindawo ekupheleni. Umgangatho womfanekiso omhle kule meko uya kubonisa i-50 Hz okanye i-60 Hz TV.
3. Iphaneli yePlasma – kumfanekiso okumgangatho ophezulu, akusafuni ukukhanya okongeziweyo, kuba iiseli zikhanyiswa kwimitha ye-ultraviolet ewela kwi-phosphors. I-Plasma ihambisa umahluko ophezulu kunye nobumnyama obunzulu, obutyebileyo. Kufuneka kukhunjulwe ukuba emva kweminyaka embalwa, iiseli zeplasma ziqala ukutshisa ngokuthe ngcembe, nto leyo echaphazela kakubi umgangatho womfanekiso.
4. I- OLED yitekhnoloji yanamhlanje ebonisa umgangatho wemifanekiso ogqwesileyo, imibala enzulu netyebileyo, kunye neentlobo ngeentlobo zeemithunzi. IiTV ezigobileyo ezingama-200Hz, iipaneli ezibhityileyo kakhulu, iimodeli ezinkulu zethiyetha yasekhaya, zonke kule meko ziya kukunika intuthuzelo ngelixa ubukele iTV okanye usebenza ekhompyuter.

Izinga lokuhlaziya isikrini se-TV yi-120 okanye i-60 Hz kwii-TV, ngokuthelekisa i-TV kwiindawo eziguqukayo kunye namazinga ahlukeneyo efreyimu: https://youtu.be/R86dWrDnulg iifreyimu ezingama-50 ngesekhondi. Ukusetyenzwa kwevidiyo yedijithali kwenze ukuba kwenzeke ukukopa isakhelo ngasinye esinjalo kwaye usibonise kabini. Ukusebenzisa le ndlela, kwakunokwenzeka ukuphuhlisa i-TV ye-100 hertz. Iteknoloji esetyenziswe kuyo ivumele ukuphelisa i-flicker, eyenza umfanekiso ube lula kwaye uthandeke ngakumbi. Ukuzoba iifreyimu ezongezelelweyo ukwenza umfanekiso opheleleyo kusekelwe kuhlalutyo lwexesha elidlulileyo, eliqinisekisa ukuchaneka okuphezulu komfanekiso oboniswe kwisikrini. Izinto ezihamba ngesantya esiphezulu, umzekelo, ziya kuba bukhali kwaye zingafifi kule meko.

Yintoni echaphazela i-hertz kwiiTV

Ikwangumbono olungileyo ukwazi ukuba izinga lohlaziyo lwesikrini sakho seTV lichaphazela ntoni. Ukwenza oku, kufuneka uqonde indlela inkqubo yokudubula ividiyo eyenzekayo. Ibamba intshukumo ethile eyenzekayo ngexesha elithile. Isiphumo yimifanekiso emininzi emileyo, ebizwa ngokuba ngezakhelo. Emva kwendlela yabo, unokujonga ngokubonakalayo ukuqhubeka kwentshukumo. Kwiimeko ezininzi, iireyithi zesakhelo se-analog stream (iiprogram zeTV ezisasazwayo) zisekelwe kumaxesha amaninzi anikwe amandla ombane. Kungenxa yoko le nto iireyithi zesakhelo zahlukile e-US, eRashiya okanye eYurophu. Kwezinye izixhobo kukho ukutyunjwa kwe-PAL okanye kwe-NTSC, kwii-VCP eziveliswe kumashumi eminyaka eyadlulayo, ezi aziyonto ngaphandle kwemimandla apho obu buchule bunokusebenza ngokupheleleyo. Umzekelo, Ii-PAL zibandakanya i-UK kunye neYurophu eninzi. Apho ireyithi yesakhelo iya kuba yi-25 fps. Imimandla ye-NTSC ibhekisa e-US. Apha i-frequency sele i-30 izakhelo ngomzuzwana.
Ukuba ividiyo irekhodwa kwifilimu eqhelekileyo (engafakwanga ekhompyutheni), ngoko ke izakhelo ezingama-24 kuphela ziya kudlula ngomzuzwana. Ukuqhagamshela umjelo wevidiyo ye-analog ngokuqhelekileyo kwenziwa ukuze kugcinwe i-bandwidth esetyenziswayo. Oku kufanelekileyo, umzekelo, ngexesha lokusasazwa kwenkqubo. Ngelixa umfanekiso ugqithiselwa kwiscreen seTV, isixhobo siya kudlala iifreyimu ngendlela eyiyo. Kuvela ukuba ukuphindaphinda kwevidiyo edibeneyo kwimimandla ye-PAL yi-50 Hz, kwaye kwimimandla ye-NTSC yi-60 Hz. Izinga lohlaziyo lwesikrini seTV lichaphazela ukugudiswa komfanekiso kunye nokungabikho kwe-flicker.

Kubalulekile ukukhumbula ukuba uphuhliso oluqhubekayo lwezobuchwepheshe, ukuphuculwa kwabo okulandelayo kukhokelela ekubeni iimodeli ezintsha zifumana umfanekiso ocacileyo kunye nendalo.

Ngaba izinga lokuhlaziya lichaphazela ukusebenza?

Akufunekanga wazi kuphela ukuba leliphi izinga lokuhlaziya isikrini seTV, kodwa nokuba yeyiphi imisebenzi eyenziwa yile teknoloji. Ukungabikho kwe-flicker kunefuthe elihle kwimpilo yamehlo. Xa ubukela iinkqubo okanye iifilimu ixesha elide, udlala kwikhompyutheni okanye usebenza usebenzisa i-monitor, kungcono ukhethe inketho yesixhobo apho ibhengezwe ngaphantsi kwe-100 Hz. Ukusebenza ngokugqwesileyo kobugcisa akuchaphazeli izinga lokuhlaziya isikrini. Le teknoloji ihambelana ngqo necandelo elibonakalayo kunye nobuhle bomfanekiso. Ngoko ke, impendulo kumbuzo wokuba i-hertz esweni ichaphazela ukusebenza kwekhompyutheni ayikho, kodwa kwimeko yomgangatho womfanekiso kunye nokhuseleko lwamehlo, ewe.

Yeyiphi ireyithi yokuhlaziya isikrini seTV esilungele amehlo

Xa ukhetha iTV, izinga lokuhlaziya liba enye yeeparitha eziphambili apho umgangatho wayo, ukuthembeka, unamhlanje kunye nokufaneleka kokusetyenziswa kwexesha elide kugwetywa. Ngaphambi kokuthenga, kuyacetyiswa ukuba wenze isigqibo malunga nokuba yeyiphi imisebenzi oyidingayo iTV okanye esweni. Ukuba umsebenzi oyintloko kukubukela iziteshi zeTV zedijithali okanye zekhebula, iifilimu kumgangatho weHD, ngoko kuya kukwanela ukuba umsebenzisi oqhelekileyo athenge imodeli nge-60 Hz. Kule meko, umntu akayi kuphawula umahluko omkhulu ngokwembono ebonakalayo yomfanekiso, ukuba kuthelekiswa, umzekelo, kunye ne-100 Hz. Kwimeko apho isixhobo senzelwe ukuba sisetyenziswe ngakumbi njengeliso kwimidlalo yevidiyo okanye i-consoles, kunye nezinye izinto zokuzonwabisa, kunye nokubukela iimuvi ezineziphumo ezizodwa ezahlukeneyo okanye isisombululo esiphezulu,
Olunye ukhetho apho kufuneka unikele ingqalelo kwi-hertz kukusebenzisa i-TV ukuya kwinqanaba elikhulu ukujonga imiboniso eguqukayo kwiscreen esikhulu. Oku akubandakanyi imiboniso kuphela kwiifilimu, kodwa kunye nebhola kunye neminye imidlalo yezemidlalo, imidyarho yeemoto, naziphi na ezinye iziganeko ezihamba ngesantya esiphezulu, imidaniso, imiboniso enenani elikhulu lezinto ezihambayo. Kule meko, kucetyiswa ukuba ukhethe izixhobo ezibiza kakhulu kwaye uthenge i-TV ye-200 hertz. Kufuneka kukhunjulwe ukuba okukhona kunamandla, ngokukhawuleza ukuhamba kwento okanye i-tortuosity ye-trajectory yentshukumo yayo, kubonakala ngakumbi umahluko phakathi kwezixhobo kwi-60 kunye ne-120 Hz. Ukuba umgangatho wevidiyo uphantsi ekuqaleni (umzekelo, ulwamkelo olubi lwe-TV),

Ukuthelekiswa kwehertz ezahlukeneyo

Emva kokuba kucacile ukuba inani le-hertz kwi-monitor okanye isikrini sikamabonwakude lichaphazela, kufuneka uthelekise izikhombisi ezahlukeneyo. Ngokomzekelo, kucetyiswa ukuba uthathe inketho ethandwa kakhulu – 60 Hz kunye ne-120 Hz.
Ukuhanjiswa okusemgangathweni kunokuphinda kuveliswe ngekhwalithi yomfanekiso oqhelekileyo nge-TV ye-50 okanye i-60 ye-hertz. Kungenxa yoko le nto umsinga udla ngokusasazwa ngezalathi ezinjalo. Kwimeko xa umlambo ofanayo udlalwa kwiTV enentsebenzo ye-120 Hz, isakhelo ngasinye esiqulethwe kumjelo siya, ngokuqinisekileyo, siphindwe kabini. Umsebenzisi uya kugqiba ngeefreyimu ze-120 ngomzuzwana. Oomabonakude banamhlanje banokutshintsha ukusuka kwi-120Hz ukuya kwi-60Hz yokuhlaziya ngokuzenzekelayo. Oku kufuna imeko enye kuphela ukuba kuhlangatyezwane nayo, ukuba kukho isignali yokufaka ividiyo, eyi-60 izakhelo ngomzuzwana. Emva kohlalutyo lothelekiso, kuyacaca ukuba ukuba awudingi ukuthenga iTV okanye ukubeka iliso ngereyithi yokuhlaziya ye-120 Hz yokujonga ngokuqhelekileyo ukusasazwa kosasazo-umsebenzisi oqhelekileyo akayi kuqaphela umahluko kwi-60 Hz. Ukuba izixhobo zithengiwe ukwenza iseti yomdlalo, ngoko kukulungele ukusebenzisa i-120 Hz, kuba kulo mzekelo umfanekiso uya kucaca ngakumbi kwaye ugudileyo, kwaye amehlo akayi kutsala nzima. Kusebenza okufanayo kulawo matyala xa usebenza kwikhompyutheni / ukubukela iTV kuthatha iiyure ezingaphezu kwe-2 ngosuku.
Inzuzo yeeTV kunye nabahloli abanezinga elichaziweyo lokuhlaziya isikrini se-120 Hz liya kwandiswa ukucaca kwemifanekiso. Iividiyo ngexesha lokudlala zibukeka zigudile kwi-TV ye-120Hz xa kuthelekiswa nesixhobo se-60Hz. Kwakhona, ukuba ukhetha i-TV ye-120Hz, unokongeza intshukumo eshukumayo kumthombo wevidiyo we-60Hz. Oomabonakude abanemilinganiselo ephezulu basetyenziswa kancinci rhoqo. Zifakwe, umzekelo, kwiithiyetha zasekhaya ukuze kufezekiswe ukuntywiliselwa okukhulu emfanekisweni, ukubona yonke imibala enokwenzeka kunye nemibala ngelixa usebenza kubahleli abahlukeneyo. https://cxcvb.com/texnika/domashnij-kinoteatr/2-1-5-1-7-1.html

Ezona mabonakude zibalaseleyo zika-2022 ezine-hertz ezahlukeneyo

Ukufumana impendulo yombuzo wakho, yeyiphi ireyithi yokuhlaziya isikrini seTV esingcono, esilungele ngakumbi, esikhawulezayo kwaye kulula usebenzisa iireyithingi zeeTV ezingcono kakhulu njengomzekelo. Kwi-50-60 Hz, umphezulu uya kuba ngolu hlobo lulandelayo:

1. Imodeli ye- Irbis 20S31HD302B yiTV edibeneyo ene-diagonal ye-intshi ezingama-20. Isisombululo sesikrini se-HD. Kukho ukukhanya kwe-LED kunye nomgangatho ophezulu, isandi esinzulu nesicacileyo. Imibala igqamile kwaye igcwele, umgangatho wesithombe uphezulu. Iindleko malunga nama-ruble angama-25,000.
2. Imodeli ye-Xiaomi Mi TV 4S 55 T2  inoyilo olunesitayile kwaye lwangoku, kukho iifreyimu ezincinci ezikuvumela ukuba uzintywilisele ngokupheleleyo emfanekisweni, kukho isandi se-stereo kunye nesibane esikhanyayo se-LED. Njengokongeza okongeziweyo – umsebenzi we-Smart TV. Iindleko malunga nama-ruble angama-90,000.
3. Imodeli ye- Samsung T27H390SI – i-TV ine-diagonal yesikrini ye-intshi ezingama-27. Isandi se-stereo kunye nezibane eziphezulu ze-LED ziyaphunyezwa. Iimpawu zanamhlanje ziqokelelwa kubuchwepheshe be-Smart TV. Iindleko ziphakathi kwama-ruble angama-64,000.

IiTV ezibalaseleyo ezine-100-120Hz:

1. Imodeli ye-Samsung UE50TU7090U 50 inikezelwe ngoyilo olunesitayile kunye nefashoni. Kuya kukuvuyisa ngemibala ecebileyo kunye nemibala, isandi esityebileyo. I-diagonal yesikrini yi-intshi ezingama-50. Isisombululo-iHD epheleleyo kunye nekumgangatho ophezulu. Ukukhanya kwe-LED kukho. Iindleko zingama-ruble angama-218,000.
2. Imodeli ye-Samsung UE65TU7500U LED – isebenzisa iteknoloji engenasiphelo, ine-headphone jack. Imisebenzi ye-Smart TV, i-backlight kunye nomncedisi welizwi iphunyeziwe. Zonke iifomati ezaziwayo zevidiyo kunye nesandi ziyaxhaswa. Iindleko malunga ne-120,000 ruble.
3. Imodeli LG OLED55C9P  – iTV inoyilo olunesitayile kunye nezakhelo ezincinci kakhulu. I-diagonal yi-55 intshi. Zonke izihlanganisi eziyimfuneko zikhona, uninzi lweefomathi zevidiyo kunye neaudio ziyaxhaswa. Kuyenzeka ukuqhagamshela kwi-Intanethi ngaphandle kwamacingo. Iindleko malunga ne-180,000 ruble.

Ukusetyenziswa kwekhaya, ii-TV ze-100 Hz zezona zamkelekileyo, ukuba siziqwalasela ngokwexabiso kunye nomgangatho onikezelwe kumsebenzisi. Iimodeli ezinokufundwa kwehertz ezingaphezu kwama-200 zenzelwe ukusetyenziswa kobungcali. Iindleko zabo ziya kuba ngamaxesha amaninzi aphezulu.

Uzifumana njani iifrikhwensi kwiTV yakho

Ukuze uthenge imodeli yeTV kunye namaxabiso e-hertz afunwayo, kubalulekile ukunikela ingqalelo. Ukuba izixhobo ziyalelwe kwivenkile ye-intanethi, ngoko kufuneka ufunde inkcazo. Iza kuqulatha le parameter. Kwakhona, ulwazi olunjalo ngokuyimfuneko lukho kwincwadana yemiyalelo. Kuthatha nje imizuzu embalwa ukufumana ixabiso ngokukodwa imodeli ethile kamabonakude. Ukuba ngexesha lokuthenga umsebenzisi wayengazi oku, ngoko unokujonga isalathisi esele sisekhaya. Ukwenza oku, kufuneka uvule iTV, uze uye kwimenyu ephambili kwaye uye kuseto. Iya kubonisa ukuba zingaphi iihertz eziveliswa yimodeli ethengiweyo.
Kwimeko yemonitha yekhompyuter, yonke into nayo ilula kakhulu. Kuya kufuneka uye kwicandelo elithi “isisombululo sesikrini”, emva koko uye ku “iinketho”. Emva koko, kuya kufuneka uye kwithebhu “yokubeka iliso” kwaye ixabiso apho isixhobo esithengiweyo sinakho ukukhupha siya kuboniswa apho. Kwiinkqubo zokusebenza zanamhlanje, amanyathelo aya kwahluka kancinci. Kufuneka uye kwi “settings”, yiya “kwiadvanced settings”, emva koko uye ku “graphics adapter properties”, “monitor” kwaye kwakhona “options”. Emva koko, uphawu olufunwa ngumsebenzisi luya kuvela.