DVD Thiab Hnub no & # 39; s TVs
Nrog rau lub HDTV (thiab, tsis ntev los no, 4K Ultra HD TV ), kev tsim cov khoom sib txawv los ua kom muaj peev xwm ntawm cov TV tau ua qhov tseem ceeb. Raws li kev daws teeb meem, feem ntau DVD players (cov uas tseem muaj) muaj peev xwm ua kom "zoo dua" muaj peev xwm ua kom zoo dua qhov kev ua tau zoo ntawm cov DVD player nrog lub peev xwm ntawm hnub qub HD thiab 4K Ultra HD TV.
Txawm li cas los xij, Blu-ray duab tshav ua si tsis meej txog qhov teeb meem ntawm qhov sib txawv ntawm cov txheej txheem DVD thiab qhov tseeb muaj peev xwm ntawm Blu-ray.
Rau ib qho kev piav qhia ntawm DVD video upscaling thiab ua li cas nws muaj feem xyuam rau qhov tseeb txhais video, xws li Blu-txoj kab, khaws nyeem ntawv ...
Txheem DVD Resolution
Cov DVD hom txhawb cov kev yees duab 720 x 480 (480i). Qhov no txhais tau hais tias thaum koj muab ib qho disc rau DVD player, qhov no yog qhov daws teeb meem uas cov neeg uas ua ntawv nyeem tawm lub disc. Yog li ntawd, DVD muab cais ua ib qho qauv daws teeb meem.
Txawm hais tias qhov no tau zoo thaum lub DVD hom ntawv nthuav tawm hauv 1997, tsis ntev tom qab nws tso DVD player makers ua qhov kev txiav txim siab los txhim kho qhov zoo ntawm DVD cov duab ntawm qhov kev siv ntawm kev ua ntxiv rau DVD teeb liab tom qab nws nyeem tawm lub disc, tab sis ua ntej nws mus txog TV. Cov txheej txheem no yog hu ua " Progressive Scan" .
Hlav scan DVD players tso tawm tib qhov kev daws teeb meem (720x480) raws li ib tug tsis tau txais kev luam scan enabled DVD neeg uas ua ntawv, tiam sis, kev kuaj hnyav tau muab cov duab smoother.
Ntawm no yog kev sib piv ntawm 480i thiab 480p:
- 480i nruab nrab yog 720 pixels tso tawm kom pom ib qho screen horizontally thiab 480 pixels cia ib qho screen vertically. Qhov kev hloov no yields 480 kab rov tav, uas yog, nyeg, tso tawm kom pom. Hauv lwm lo lus, tag nrho cov khib kab tau teev, tom qab los ntawm tag nrho cov kab.
- 480p nruab nrab yog 720 pixels tso tawm kom pom thoob qhov screen horizontally thiab 480 pixels cia vijtsam vertically. Qhov kev hloov no tawm 480 kab rov tav ntawm qhov kev tshuaj ntsuam, uas yog, tig tuaj, tso tawm progressively, los yog txhua kab tso tawm kom pom qab.
Txoj Kev Ncaj Ncees
Txawm hais tias kev kuaj pom tau zoo los ntawm cov duab zoo hauv TVs, nrog rau kev qhia txog HDTV, nws tau tshwm sim sai heev txawm tias DVDs tsuas yog muab 720 x 480 daws teeb meem, qhov zoo ntawm cov duab tau zoo tuaj yeem kho ntxiv los ntawm kev siv tus txheej txheem hu ua Upscaling.
Upscaling yog tus txheej txheem uas muaj qhov sib piv ntawm cov pixel suav ntawm cov zis ntawm cov teeb meem ntawm DVD rau lub cev pixel suav ntawm HDTV, uas yog feem ntau 1280 x 720 (720p) , 1920x1080 (1080i lossis 1080p), thiab tam sim no, ntau TVs feature 3840x2160 (2160p los yog 4K) .
- 720p nruab nrab yog 1,280 pixels tso tawm kom pom thoob lub vijtsam horizontally thiab 720 pixels cia vijtsam vertically. Qhov kev hloov no nce 720 kab kab rov tav ntawm qhov kev tshuaj ntsuam, uas yog, tig tuaj, tso tawm progressively, los yog txhua kab tso tawm kom pom qab.
- 1080i nruab nrab yog 1,920 pixels tso tawm kom pom ib qho screen horizontally thiab 1,080 pixels hauv ib lub vijtsam vertically. Qhov kev npaj no yields 1,080 kab rov tav, uas yog, nyeg, tso tawm kom pom. Hauv lwm lo lus, tag nrho cov khib kab tau teev, tom qab los ntawm tag nrho cov kab.
- 1080p , nruab nrab yog 1.080 txoj kab kab rov tshwm tso tawm. Qhov no txhais tau hais tias txhua kab yuav tshwm nyob rau tib kis.
- 4K (los yog 2160p) , nyob rau lwm qhov, sawv cev 3,480 kab rov tav uas tshwm sim hauv qab. Qhov no txhais tau hais tias txhua kab yuav tshwm nyob rau tib kis. 4K yog qhov zoo tshaj plaws HD display hom.
Lub tswv yim zoo ntawm DVD Upscaling
Pom tau tias, muaj qhov sib txawv ntawm qhov nruab nrab ntawm tus neeg siv nruab nrab ntawm 720p thiab 1080i . Txawm li cas los xij, 720p tuaj yeem xa tau me ntsis duab smoother, vim tias cov kab thiab cov pixels muab tso rau hauv tus qauv sib law liag, tsis yog ua lwm tus qauv.
Cov txheej txheem upscaling yog ib txoj hauj lwm zoo ntawm kev sib piv ntawm cov neeg ua hauj lwm DVD uas tau muab tso tawm los ntawm cov neeg siv lub tshuab DVD los ntawm cov HDTV uas muaj peev xwm, uas ua rau kom muaj kev qhia zoo dua qub thiab xim xim.
Txawm li cas los, upscaling, raws li nws yog tam sim no DVR, tsis tau hloov cov txheem DVD cov duab rau hauv siab tiag tiag txhais (lossis 4K). Qhov tseeb, txawm hais tias kev ua haujlwm zoo tshaj plaws nrog cov duab pixel taag, xws li Plasma , LCD , thiab OLED TVs, cov txiaj ntsig tsis zoo ib yam li CRT raws li HDTVs (qhov zoo ces tsis muaj ntau ntawm cov neeg tseem siv).
Cov Ntsiab Lus Kom nco txog DVDs thiab DVD Upscaling:
- Txhua tus neeg uas ua DVD yuav tuaj yeem hla mus rau HDTV. Txawm hais tias ua kom cov DVD players zoo dua tuaj yeem ua kom haum cov pixel daws teeb meem ntawm HDTV, koj yuav ua tau zoo ntawm tus neeg siv DVD tus neeg siv (tsis muaj kev luam cov duab los sis tsis muaj peev xwm ua tau zoo dua) uas txuas nrog ntawm HDTV los ntawm Component lossis S-Video inputs (Note : feem ntau cov TV tshiab tsis muaj S-video inputs lawm).
- Yog tias koj muaj HDTV (los yog 4K Ultra HD TV), thiab tus txheem DVD neeg uas ua ntawv, koj yuav tau txais qhov zoo tshaj plaws los ntawm kev sib txuas ntawm Component video txuas (red-blue-green) ntawm DVD player thiab HDTV. Tsis tas li ntawd, yog hais tias koj tus neeg ua si DVD ua kom tiav, nws yeej siv qhov kev xaiv ntawd thaum muaj kev sib txuas lus rau kev kuaj kom muaj peev xwm T. Txawm li ntawd los, yog tias koj tus neeg ua si DVD tseem muaj peev xwm tsim dua, nws yuav muaj kev sib txuas nrog HDMI . Siv cov kev sib txuas ntawm HDMI mus saib cov DVD players kom muaj peev xwm tshaj tawm.
- DVD video upscaling tsuas yog qhov kwv yees ntawm qhov kev txhais cov ntsiab lus siab. Yuav kom tau tag nrho cov kev muaj tseeb siab txhais los ntawm ib hom ntawv disc, koj yuav tsum muaj ib tug Blu-duab tshav player txuas nrog ib qho HDTV ntawm kev sib txuas ntawm HDMI thiab saib cov ntsiab lus Blu-duab disc. Daim duab Blu-duab sab nrauv txhawb cov haiv neeg 720p, 1080i, thiab 1080p cov ntsiab lus.
DVD Upscaling vs Blu-ray
- Upscaled DVD (txawm tias thaum nws zoo) tseem tsis txawv qhov zoo ntawm ib haiv neeg Blu-ray disc. Zoo li Blu-txoj sab ci disc, upscaled DVD nyhav saib me ntsis lus dag thiab softer (tshwj xeeb tshaj yog nyob hauv keeb kwm yav dhau) dua Blu-txoj sab ci. Tsis tas li ntawd, thaum saib ntawm Reds thiab Blues, nws kuj yog ib qho yooj yim los qhia qhov txawv ntawm feem ntau, raws li txawm nrog cov DVD tshiab, cov liab thiab kev nyuaj siab muaj qhov xav paub ntxiv uas yuav ua rau hauv qab, thaum tib lub xim hauv Blu-txoj sab yog nruj heev thiab koj tseem pom cov kev nthuav dav hauv cov xim.
- Txhua Blu-Ray Disc players tuaj yeem ua kom muaj kev ua ub ua no rau cov txheej txheem DVDs, muab Blu-ray Disc neeg uas ua ntawv txuas nrog HDTV (los yog 4K Ultra HD TV) siv qhov kev sib txuas ntawm HDMI.
- Nyob rau hauv cov ntaub ntawv ntawm Ultra HD TVs, txawm tias ib tug upscaling DVD neeg uas ua ntawv tau xwb upscale DVD rau ib 1080p - Ultra HD TV yuav txais qhov teeb liab thiab ntxiv mus rau nws 4K Ultra HD. Ntxiv thiab, qee cov Blu-duab Disc players muaj built-in 4K upscaling rau ob leeg DVD thiab Blu-Ray Disc playback. Yog hais tias ib tug Blu-duab tshav disk neeg uas ua ntawv tsis muab no feature, ib zaug ntxiv, tus 4K Ultra HD TV yuav ntxiv upscale 1080p teeb liab los ntawm Blu-duab tshav Disc neeg uas ua ntawv mus rau 4K.
Ntxiv Info Rau cov neeg uas ua ntawv HD-DVD Player
Lub hom phiaj HD-DVD tau raug txiav tawm hauv xyoo 2008. Txawm li cas los xij, rau cov neeg uas tseem muaj thiab siv tus HD-DVD neeg uas ua ntawv thiab Discs, tib qho kev piav qhia saum toj no kuj siv rau kev sib raug zoo ntawm DVD Upscaling thiab HD-DVD thaum nws ua ntawm DVD upscaling thiab Blu-ray disc.