I-DisplayPort noma i-HDMI - iyiphi ongayikhetha? Isiphi isixhumi sevidiyo esingcono?

Akuyona nje i-hardware ngokwayo enomthelela omkhulu ekusebenzeni kwamakhompyutha. Ngenkathi ikhadi lezithombe, iphrosesa, nenani le-RAM linquma ulwazi lomsebenzisi, izintambo nazo zenza umehluko omkhulu. Namuhla sizobheka izintambo zevidiyo - i-DisplayPort kanye ne-HDMI eyaziwa kakhulu. Yimuphi umehluko phakathi kwazo futhi zikuthinta kanjani ukusetshenziswa kwansuku zonke kwemishini?

I-DisplayPort - ulwazi olujwayelekile mayelana nesixhumi esibonakalayo 

Izici ezivamile zalezi zixazululo ezimbili ukuthi zombili ziwuhlobo lwedijithali lokudluliswa kwedatha. Zisetshenziselwa kokubili ukudluliswa komsindo nevidiyo. I-DisplayPort yaqalwa ngo-2006 ngemizamo ye-VESA, i-Video Electronics Standards Association. Lesi sixhumi siyakwazi ukudlulisa nokuphimisa ukusuka kowodwa kuya kwemine okuthiwa yilayini yokudlulisela, futhi saklanywa ukuxhuma ikhompyutha nemonitha nezinye izibonisi zangaphandle ezinjengama-projektha, izikrini ezibanzi, ama-Smart TV namanye amadivaysi. Kuyafaneleka ukugcizelela ukuthi ukuxhumana kwabo kusekelwe ekushintshaneni kwedatha okuhlangene.

 

I-HDMI indala futhi ayidumile kangako. Yini okufanele ukwazi?

I-High Definition Multimedia Interface iyisixazululo esakhiwe ngo-2002 ngokubambisana nezinkampani ezinkulu eziyisikhombisa (okuhlanganisa i-Sony, i-Toshiba ne-Technicolor). Njengomfowabo omncane, iyithuluzi lokudlulisa ngedijithali umsindo nevidiyo isuka kukhompyutha iye kumadivayisi angaphandle. Nge-HDMI, singakwazi ngempela ukuxhuma noma iyiphi idivayisi enye nenye, uma iklanywe ngokuhambisana naleli zinga. Ikakhulukazi, sikhuluma ngama-consoles wegeyimu, abadlali be-DVD ne-Blu-Ray namanye amadivaysi. Kulinganiselwa ukuthi izinkampani ezingaphezu kuka-1600 XNUMX emhlabeni wonke okwamanje zenza imishini zisebenzisa lesi sixhumanisi, okusenza sibe esinye sezixazululo ezithandwa kakhulu emhlabeni.

Ukutholakala kwe-DisplayPort kumadivayisi ahlukahlukene 

Okokuqala, yonke idatha ethunyelwe ngalesi sixhumi esibonakalayo ivikelekile ekukopishweni okungagunyaziwe kusetshenziswa indinganiso ye-DPCP (DisplayPort Content Protection). Umsindo nevidiyo evikelwe ngale ndlela idluliselwa kusetshenziswa eyodwa yezinhlobo ezintathu zesixhumi: i-DisplayPort ejwayelekile (esetshenziswa, phakathi kwezinye izinto, kuma-multimedia projektha noma amakhadi ezithombe, kanye neziqaphi), i-Mini DisplayPort, ephinde imakwe ngesifinyezo se-mDP noma I-MiniDP (ethuthukiswe i-Apple ye-MacBook, i-iMac, i-Mac Mini ne-Mac Pro, esetshenziswa kakhulu kumadivayisi aphathwayo avela ezinkampanini ezifana ne-Microsoft, i-DELL ne-Lenovo), kanye ne-DisplayPort encane yamadivayisi eselula amancane kakhulu (ingasetshenziswa kwezinye izingcingo kanye amamodeli ethebhulethi).

Imininingwane yobuchwepheshe yesixhumi esibonakalayo se-DisplayPort

Kuyathakazelisa indlela yokuxhuma i-laptop ukuze uqaphe usebenzisa lesi sikhombimsebenzisi, ukucaciswa kwaleli zinga akukwazi ukweqiwa. Izizukulwane zayo ezimbili ezintsha zadalwa ngo-2014 (1.3) nango-2016 (1.4). Banikeza izinketho zokudlulisa idatha ezilandelayo:

Inguqulo ye-1.3

Cishe umkhawulokudonsa ongu-26Gbps uletha 1920x1080 (Full HD) kanye nezinqumo ezingu-2560x1440 (QHD/2K) ngo-240Hz, 120Hz ye-4K kanye no-30Hz ye-8K,

Inguqulo ye-1.4 

Umkhawulokudonsa okhuphukile ofika ku-32,4 Gbps uqinisekisa ikhwalithi efanayo neyamanduleli wawo esimweni se-Full HD, QHD/2K ne-4K. Umehluko omkhulu phakathi kwazo yikhono lokubonisa izithombe ngekhwalithi engu-8K ku-60 Hz kusetshenziswa ubuchwepheshe bokudlulisa ividiyo obungalahleki obubizwa nge-DSC (Display Stream Compression).

Amazinga wangaphambilini afana ne-1.2 anikeze amanani aphansi webhithi. Ngokulandelayo, inguqulo yakamuva ye-DisplayPort, ekhishwe ngo-2019, inikeza umkhawulokudonsa ofinyelela ku-80 Gbps, kodwa ukwamukelwa kwayo okubanzi kusazotholakala.

Izinhlobo zesixhumi se-HDMI nokuvela kwayo 

Ukudluliswa kwedatha yomsindo nevidiyo ngokwaleli zinga kwenzeka ngemigqa emine, futhi ipulaki yayo inamaphini angu-19. Kukhona ingqikithi yezinhlobo ezinhlanu zezixhumi ze-HDMI emakethe, futhi ezintathu ezidume kakhulu zihluke ngendlela efanayo ne-DisplayPort. Yilezi: thayipha A (izinga le-HDMI kumadivayisi afana namaphrojekhtha, ama-TV noma amakhadi ezithombe), uhlobo B (okungukuthi i-HDMI encane, evame ukutholakala kumakhompyutha aphathekayo noma kuma-netbook anyamalalayo kanye nengxenye encane yamadivayisi eselula) bese uthayipha C (micro- HDMI ). I-HDMI, etholakala kuphela kumathebulethi noma kuma-smartphone).

Imininingwane yobuchwepheshe yesixhumi esibonakalayo se-HDMI 

Izindinganiso ezimbili zokugcina ze-HDMI, i.e. izinguqulo ezingu-2.0 ezinguqulweni ezahlukene (ezisetshenziswa kakhulu ngo-2013-2016) kanye no-2.1 kusukela ngo-2017 ziyakwazi ukunikeza izinga lokudlulisa umsindo nevidiyo elenelisayo. Imininingwane imi kanje:

I-HDMI 2.0, 2.0a ne-2.0b 

Inikeza umkhawulokudonsa ofinyelela ku-14,4Gbps, ikhanda eligcwele le-HD lokuvuselela okungu-240Hz, kanye no-144Hz we-2K/QHD kanye no-60Hz ngokudlala okungu-4K.

I-HDMI i-2.1 

Cishe ingqikithi yomkhawulokudonsa ongu-43Gbps, kanye no-240Hz we-Full HD kanye nokulungiswa okungu-2K/QHD, u-120Hz we-4K, u-60Hz we-8K, kanye no-30Hz ngokulungiswa okukhulu kwe-10K (amaphikseli angu-10240x4320).

Izinguqulo ezindala zezinga le-HDMI (144Hz ekulungisweni kwe-Full HD) zithathelwe indawo yizintsha nezisebenza kahle kakhulu.

 

I-HDMI vs DisplayPort. Yini okufanele uyikhethe? 

Kukhona ezinye izici eziningi ezithinta ukukhetha phakathi kwezixhumi ezibonakalayo ezimbili. Okokuqala, akuwona wonke amadivayisi asekela i-DisplayPort, kanti amanye anakho kokubili. Kufanele futhi kuqashelwe ukuthi i-DisplayPort iyindinganiso eyonga amandla kakhudlwana, kodwa ngeshwa ayinakho ukusebenza kwe-ARC (Audio Return Channel). Kukhona izibikezelo zokuthi kungenxa yokusetshenziswa kwamandla okuphansi ukuthi abakhiqizi bemishini bazobeka kuqala i-DisplayPort. Ngakolunye uhlangothi, inzuzo ebalulekile ye-HDMI ukudlula okuphezulu kwedatha - enguqulweni yakamuva iyakwazi ukudlulisa cishe i-43 Gb / s, futhi isivinini esiphezulu se-DisplayPort ngu-32,4 Gb / s. Ukunikezwa kwe-AvtoTachkiu kuhlanganisa izintambo kuzo zombili izinguqulo, amanani aqala kusuka kuma-zloty ambalwa.

Lapho ukhetha, kufanele ucabange kuqala mayelana nohlobo lwemisebenzi ozoyenza. Uma sifuna ukubuyekeza isikrini ngekhwalithi ephezulu kakhulu ngokushesha okukhulu, ukukhetha kuzowela ku-HDMI. Ngakolunye uhlangothi, uma sigxila ekusebenzeni kahle kwamandla kanye nentuthuko yesikhathi esizayo ye-DisplayPort, ezokwenzeka maduzane, lokhu okuhlukile kufanelekile ukucatshangelwa. Kufanele futhi sikhumbule ukuthi umkhawulokudonsa ophezulu ophezulu wesixhumi esibonakalayo esinikeziwe akusho ngempela ikhwalithi engcono yevidiyo efanayo edlalwa kuyo ngayinye yazo.

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