DisplayPort lossis HDMI - qhov twg xaiv? Qhov twg video connector zoo dua?

Tsis tsuas yog kho vajtse nws tus kheej muaj qhov cuam tshuam loj rau kev ua haujlwm ntawm cov khoos phis tawj. Thaum lub graphics card, processor, thiab tus nqi ntawm RAM txiav txim siab rau cov neeg siv kev, cables kuj ua rau ib tug loj sib txawv. Niaj hnub no peb yuav saib cov video cables - DisplayPort thiab cov paub zoo HDMI. Dab tsi yog qhov txawv ntawm lawv thiab lawv cuam tshuam li cas rau cov khoom siv niaj hnub?

DisplayPort - cov ntaub ntawv dav dav txog lub interface 

Cov yam ntxwv ntawm ob txoj kev daws teeb meem no yog tias lawv yog ob qho tib si digital daim ntawv ntawm cov ntaub ntawv xa mus. Lawv yog siv rau ob qho tib si suab thiab video kis tau tus mob. DisplayPort tau ua tiav xyoo 2006 los ntawm kev siv zog ntawm VESA, Video Electronics Standards Association. Lub connector no muaj peev xwm kis tau thiab suab los ntawm ib tug mus rau plaub lub thiaj li hu ua kis tau tus mob kab, thiab tau tsim los interconnect lub computer nrog ib tug saib thiab lwm yam sab nraud qhia xws li projectors, wide-screens, Smart TVs thiab lwm yam khoom siv. Nws yog tsim nyog hais tias lawv cov kev sib txuas lus yog raws li kev sib nrig sib, kev sib nrig sib pauv ntaub ntawv.

 

HDMI yog laus dua thiab tsis muaj npe nrov tsawg. Dab tsi tsim nyog paub?

High Definition Multimedia Interface yog ib qho kev daws teeb meem tsim hauv xyoo 2002 hauv kev koom tes nrog xya lub tuam txhab loj (xws li Sony, Toshiba thiab Technicolor). Zoo li nws tus kwv yau, nws yog ib qho cuab yeej rau digitally hloov suab thiab video los ntawm lub computer mus rau lwm yam khoom siv. Nrog HDMI, peb tuaj yeem txuas txhua yam khoom siv nrog ib leeg, yog tias lawv tsim los ua raws li tus qauv no. Tshwj xeeb, peb tab tom tham txog game consoles, DVD thiab Blu-Ray players thiab lwm yam khoom siv. Nws yog kwv yees tias ntau tshaj 1600 tuam txhab uas muag nyob ib ncig ntawm lub ntiaj teb no tam sim no tsim cov cuab yeej siv no interface, ua rau nws yog ib qho ntawm feem nrov kev daws teeb meem nyob rau hauv lub ntiaj teb no.

Muaj ntawm DisplayPort hauv ntau yam khoom siv 

Ua ntej, tag nrho cov ntaub ntawv xa los ntawm qhov kev sib tshuam no raug tiv thaiv los ntawm kev luam tawm tsis raug cai siv DPCP (DisplayPort Content Protection) tus qauv. Lub suab thiab yees duab tiv thaiv nyob rau hauv txoj kev no yog kis tau los siv ib tug ntawm peb hom connector: txheem DisplayPort (siv, ntawm lwm yam, nyob rau hauv multimedia projectors los yog graphic phaib, raws li zoo raws li saib), Mini DisplayPort, kuj cim nrog lub luv luv mDP los yog MiniDP (tsim los ntawm Apple rau MacBook, iMac, Mac Mini thiab Mac Pro, siv feem ntau hauv cov khoom siv nqa tau los ntawm cov tuam txhab xws li Microsoft, DELL thiab Lenovo), nrog rau micro DisplayPort rau cov khoom siv txawb tsawg tshaj plaws (yuav siv tau hauv qee lub xov tooj thiab ntsiav tshuaj qauv).

Cov ntsiab lus kev qhia ntawm DisplayPort interface

Txaus siab yuav ua li cas txuas lub laptop los saib xyuas siv qhov interface no, qhov tshwj xeeb ntawm tus qauv no tsis tuaj yeem hla. Nws ob tiam tshiab tau tsim nyob rau hauv 2014 (1.3) thiab 2016 (1.4). Lawv muab cov kev xaiv hloov ntaub ntawv hauv qab no:

1.3 version

Ze li ntawm 26Gbps bandwidth xa 1920x1080 (Full HD) thiab 2560x1440 (QHD / 2K) daws teeb meem ntawm 240Hz, 120Hz rau 4K thiab 30Hz rau 8K,

1.4 version 

Qhov nce bandwidth mus txog 32,4 Gbps ua kom zoo ib yam li nws cov thawj coj nyob rau hauv rooj plaub ntawm Full HD, QHD / 2K thiab 4K. Qhov sib txawv tseem ceeb ntawm lawv yog lub peev xwm los tso saib cov duab hauv 8K zoo ntawm 60 Hz siv lub tshuab xa tawm video tsis zoo hu ua DSC (Display Stream Compression).

Cov qauv yav dhau los xws li 1.2 muab cov nqi qis dua. Nyob rau hauv lem, qhov tseeb version ntawm DisplayPort, tso tawm nyob rau hauv 2019, muaj bandwidth mus txog 80 Gbps, tab sis nws wider saws tseem tsis tau muaj.

Hom HDMI connector thiab nws qhov tshwm sim 

Kev xa tawm ntawm cov ntaub ntawv audio thiab video raws li tus qauv no tshwm sim dhau plaub kab, thiab nws lub ntsaws muaj 19 tus pins. Muaj tag nrho ntawm tsib hom HDMI connectors nyob rau hauv kev ua lag luam, thiab peb qhov nrov tshaj plaws txawv nyob rau hauv ib qho zoo sib xws rau DisplayPort. Cov no yog: hom A (tus qauv HDMI hauv cov khoom siv xws li projectors, TVs lossis graphics phaib), hom B (piv txwv li mini HDMI, feem ntau pom hauv laptops lossis ploj netbooks thiab ib feem me me ntawm cov khoom siv txawb) thiab hom C (micro- HDMI). ). HDMI, pom tsuas yog hauv cov ntsiav tshuaj lossis smartphones).

Cov ntsiab lus ntawm HDMI interface 

Qhov kawg ob HDMI qauv, i.e. versions 2.0 nyob rau hauv sib txawv versions (feem ntau lug siv nyob rau hauv 2013-2016) thiab 2.1 los ntawm 2017 muaj peev xwm muab ib tug txaus siab rau lub suab thiab video hloov pauv tus nqi. Cov ntsiab lus yog raws li nram no:

HDMI 2.0, 2.0a thiab 2.0b 

Nws muaj bandwidth mus txog 14,4Gbps, Full HD lub taub hau rau 240Hz refresh, nrog rau 144Hz rau 2K / QHD thiab 60Hz rau 4K playback.

HDMI 2.1 

Ze li ntawm 43Gbps tag nrho bandwidth, ntxiv rau 240Hz rau Full HD thiab 2K / QHD daws teeb meem, 120Hz rau 4K, 60Hz rau 8K, thiab 30Hz rau loj 10K daws teeb meem (10240x4320 pixels).

Cov qauv qub ntawm HDMI tus qauv (144Hz ntawm Full HD daws teeb meem) tau hloov los ntawm cov tshiab thiab muaj txiaj ntsig zoo dua.

 

HDMI vs DisplayPort. Yuav xaiv dab tsi? 

Muaj ib tug xov tooj ntawm lwm yam nta uas cuam tshuam rau kev xaiv ntawm ob interfaces. Ua ntej, tsis yog txhua yam khoom siv txhawb nqa DisplayPort, thiab lwm tus muaj ob qho tib si. Nws tseem yuav tsum raug sau tseg tias DisplayPort yog tus qauv siv hluav taws xob ntau dua, tab sis hmoov tsis muaj ARC (Audio Return Channel) ua haujlwm. Muaj kev kwv yees tias nws yog qhov tseeb vim tias siv hluav taws xob tsawg uas cov tuam txhab tsim khoom yuav muab qhov tseem ceeb rau DisplayPort. Nyob rau hauv lem, ib qho tseem ceeb kom zoo dua ntawm HDMI yog cov ntaub ntawv ntau dua throughput - nyob rau hauv qhov tseeb version nws muaj peev xwm ntawm kis yuav luag 43 Gb / s, thiab qhov siab tshaj plaws DisplayPort ceev yog 32,4 Gb / s. AvtoTachkiu qhov kev thov muaj xws li cables nyob rau hauv ob qho tib si versions, tus nqi ntawm uas pib los ntawm ob peb zlotys.

Thaum txiav txim siab, koj yuav tsum xav ua ntej ntawm txhua yam ntawm cov haujlwm uas koj yuav ua. Yog tias peb xav hloov kho lub vijtsam nrog qhov ua tau zoo tshaj plaws kom sai li sai tau, qhov kev xaiv yuav poob rau ntawm HDMI. Ntawm qhov tod tes, yog tias peb tsom mus rau kev siv hluav taws xob thiab kev txhim kho yav tom ntej ntawm DisplayPort, uas yuav tshwm sim sai sai, qhov kev xaiv no tsim nyog xav txog. Peb kuj yuav tsum nco ntsoov tias qhov siab tshaj plaws bandwidth ntawm qhov muab interface tsis tas txhais tau tias zoo dua qub rau tib cov yeeb yaj kiab ua si ntawm lawv txhua tus.

Daim duab npog: