Yog tias koj cov yeeb yaj kiab hauv tsev sau ua yeeb yaj kiab muaj kev sib xyaw ntawm DVDs thiab Blu-duab tshav Disc, koj yuav xav paub txog qhov sib txawv ntawm DVD zoo thiab Blu-duab tshav Disc zoo. Ntawm no yog cov primer txog DVD upscaling thiab yuav ua li cas cov txiaj ntsig piv rau Blu-duab tshav.
Kev hloov pauv ntawm DVDs
Cov hom ntawv DVD txhawb kev daws teeb meem ntawm 720 x 480 (480i). Thaum koj muab ib tug disc rau hauv ib tug DVD player, tus neeg uas ua ntawv nyeem qhov kev daws teeb meem. Li no, DVD tau muab faib ua hom qauv daws teeb meem.
Qhov no ua haujlwm tau zoo thaum lub hom phiaj DVD tau nthuav tawm hauv xyoo 1997, tab sis cov neeg tsim khoom DVD sai sai tau txiav txim siab los txhim kho DVD duab zoo. Lawv tau siv cov txheej txheem ntxiv rau lub teeb liab DVD tom qab nws tau nyeem tawm ntawm lub disc tab sis ua ntej nws mus txog TV. Cov txheej txheem no hu ua progressive scan.
Progressive scan DVD players tawm qhov kev daws teeb meem zoo ib yam li lwm tus players tab sis muab cov duab zoo nkauj dua.
Qhia txog kev nce qib DVD
Txawm hais tias kev soj ntsuam zoo zuj zus tuaj yeem txhim kho cov duab zoo ntawm TVs sib xws, thaum HDTV tuaj nrog, cov duab zoo xav tau kev pab ntxiv. Hauv kev teb, cov neeg tsim DVD tsim cov txheej txheem hu ua upscaling.
Upscaling lej sib npaug ntawm pixel suav ntawm DVD tso zis teeb liab rau lub cev pixel suav ntawm HDTV, uas feem ntau yog 1280 x 720 (720p), 1920 x 1080 (1080i lossis 1080p), lossis 3840 x 21060 (2160p) los yog 4K).
- 720p sawv cev rau 1, 280 pixels tso tawm thoob plaws lub vijtsam kab rov tav thiab 720 pixels hauv qhov screen ntsug. Qhov no txhais tau hais tias muaj 720 kab kab rov tav ntawm qhov screen tau nthuav dav zuj zus, lossis txhua kab tau tshwm sim tom qab lwm qhov.
- 1080i sawv cev rau 1, 920 pixels tso tawm thoob plaws lub vijtsam kab rov tav thiab 1, 080 pixels hauv ib qho screen ntsug. Qhov no txhais tau tias muaj 1, 080 kab kab rov tav tso tawm ua ke. Tag nrho cov kab khib tau tshwm sim, ua raws li tag nrho cov kab txawm.
- 1080p sawv cev rau 1, 080 kab kab rov tav tso tawm ua ntu zus. Qhov no txhais tau tias tag nrho cov kab tau tshwm sim thaum lub sijhawm dhau mus.
- 4K (los yog 2160p) sawv cev rau 3, 480 kab kab rov tav tso tawm ua ntu zus. Qhov no txhais tau tias tag nrho cov kab tau tshwm sim thaum lub sijhawm dhau mus.
Cov txiaj ntsig zoo ntawm DVD Upscaling
Visually, rau cov neeg siv khoom nruab nrab, tsis muaj qhov sib txawv ntawm 720p thiab 1080i. Txawm li cas los xij, 720p muab cov duab zoo nkauj me ntsis vim tias cov kab thiab pixels tso rau hauv cov qauv sib law liag, tsis yog nyob rau hauv cov qauv sib txawv.
Upscaling ua ib txoj haujlwm zoo ntawm kev sib piv cov txiaj ntsig pixel siab ntawm cov neeg uas ua ntawv DVD rau lub ntuj pixel zaub daws teeb meem ntawm HDTV, ua rau kom nthuav dav zoo dua thiab xim sib xws. Txawm li cas los xij, kev nce qib tsis tuaj yeem hloov cov duab DVD qauv rau hauv cov duab siab txhais (lossis 4K) tiag tiag.
Upscaling ua haujlwm zoo tshaj plaws nrog cov duab pixel ruaj khov, xws li ntshav, LCD, thiab OLED TVs. Cov txiaj ntsig tsis yog ib txwm zoo ib yam ntawm CRT-raws li HDTVs (tsis muaj ntau ntawm cov tseem siv).
Cov Ntsiab Lus Nco Txog Kev Tshaj Tawm DVD
Ntawm no yog ob peb yam uas yuav tsum nco ntsoov thaum ua haujlwm nrog DVD player thiab TV tshiab.
Kuv Puas Xav Tau Kev Tshaj Tawm DVD Player?
Koj tuaj yeem txuas ib qho DVD player rau HDTV. Upscaling DVD players zoo dua tuaj yeem phim lub ntuj pixel daws teeb meem ntawm HDTV. Txawm li cas los xij, koj tuaj yeem pom cov txiaj ntsig zoo ntawm tus qauv DVD player uas tsis muaj kev nce qib scan lossis nce qib thaum nws txuas nrog HDTV cov khoom muab los yog S-video inputs.
TVs tshiab tshaj plaws tsis muaj S-video inputs.
Txuas lub DVD Player rau HDTV
Yog tias koj muaj HDTV (lossis 4K Ultra HD TV) thiab tus qauv DVD player, siv cov khoom sib txuas video (liab-xiav-ntsuab) ntawm lub DVD player thiab HDTV kom tau txais txiaj ntsig zoo tshaj plaws. Yog tias koj lub DVD player muaj peev xwm ua tau zoo-scan, ib txwm siv qhov kev xaiv no thaum txuas nrog lub TV loj-scan muaj peev xwm. Txawm li cas los xij, yog tias koj lub DVD player muab kev nce qib, nws muaj kev sib txuas HDMI, yog li ib txwm siv HDMI kom nkag mus rau DVD player lub peev xwm nce qib.
Tseeb High-Definition Viewing
DVD upscaling tsuas yog ib qho kwv yees ntawm qhov kev pom zoo siab. Txhawm rau kom tau txais qhov tseeb siab pom los ntawm hom ntawv disc, siv Blu-duab tshav Disc cov ntsiab lus nrog Blu-duab tshav player txuas nrog HDTV lossis 4K Ultra HD TV siv HDMI. Blu-duab tshav Disc hom txhawb 720p, 1080i, thiab 1080p daws teeb meem.
DVD Upscaling vs. Blu-ray
Ib qho kev nce qib DVD, txawm tias thaum nws zoo, tsis tuaj yeem phim qhov zoo ntawm Blu-duab tshav Disc qhov chaw. Piv nrog rau Blu-duab tshav Disc, ib qho kev nce qib DVD zoo li zoo nkauj thiab softer, tshwj xeeb tshaj yog nyob rau hauv keeb kwm yav dhau.
Muaj qhov sib txawv thaum saib liab thiab xiav. Nrog rau cov DVDs loj, liab thiab xiav zoo li yuav dhau los nthuav dav hauv qab. Cov xim tib yam hauv Blu-duab tshav yog nruj, nrog cov ntsiab lus pom hauv qab xim.
Txawm hais tias tus neeg ua yeeb yaj kiab DVD tuaj yeem tsuas yog nce qib DVD mus rau 1080p, Ultra HD TV lees txais cov teeb liab ntawd thiab nce nws ntxiv mus rau 4K.
Blu-duab tshav ua kom cov ntsiab lus zoo dua
Txhua tus Blu-duab tshav Disc players tuaj yeem ua tus qauv DVDs, muab cov neeg ua si txuas nrog HDTV lossis 4K Ultra HD TV siv qhov kev xaiv HDMI txuas.
Qee Blu-duab tshav Disc players tau tsim-hauv 4K upscaling rau DVD thiab Blu-duab tshav Disc playback. Yog tias Blu-duab tshav Disc player tsis muab qhov tshwj xeeb no, 4K Ultra HD TV txuas ntxiv nce 1080p teeb liab los ntawm Blu-duab tshav Disc player rau 4K.
