Kana iwe uri kuda kutanga kutenga TV itsva kana vhidhiyo projector uye iwe hauna kutemwa kana mumakore anoverengeka, zvinhu zvinogona kunge zvakanyanya kuvhiringidza. Pasinei nokuti iwe unotarisa pamushambadziro wepaIndaneti kana wepepanhau, kana kuenda kumutengesi yako wekunze kutonhorera, kune mitauro yakawanda yakawanda iyo inodzingwa kunze, kuti vashandi vakawanda vanongopedza kubvisa mari yavo uye vachitarisira kuti zvakanakisisa.
HDR Factor
Chimwe chezvinhu zvekupedzisira "techie" mazwi ekupinda mu mix TV ndeye HDR . HDR (High Dynamic Range) ndiyo hasha dzose pakati pevashandi veTV, uye pane chikonzero chakanaka chevatengi kuti vaone.
Kunyange zvazvo 4K yakavandudza sarudzo inogona kuratidzirwa, HDR inobata chimwe chinhu chinokosha mune zvose TV nevhidhiyo projector, chiedza chekubuda (luminance). Chinangwa cheHDR ndechekusimbisa kuwedzera kwechiedza chekugadzirwa kwepamusoro kuitira kuti zviratidzo zvinoratidzika zvine maitiro akafanana nemamiriro ezvinhu ezvisikwa zvatinowanikwa mu "nyika chaiye."
Somugumisiro, mazwi maviri ezvigadzirwa zvemasikirwo ave akwira kuve mukurumbira mutsva muTVV neVideo projector kuparadzira zvinhu uye nevatengesi: Nits uye Lumens. Kunyange zvazvo shoko rokuti Lumens rave riri chiitiko chekuona mavhidhiyo ekugadzirwa kwemakore kwemakore, apo kutenga TV kune mazuva ano, vatengi vari kuwanikwa ikozvino nemitambo yevashandi veTV uye vanonyengetedza vatengesi. Saka, ndezvipi zvinonzi Lumens uye Nits chaizvoizvo zvinorevei?
Nits and Lumens 101
Kusvikira pakuiswa HDR, apo vatengi vakadzvanyiririra TV, imwe marimi / muenzaniso ingangodaro yakaratidza "kujeka" kupfuura imwe, asi musiyano iwoyo hauna kunyatsogadziriswa pazera rekutengesa zvekutengesa, iwe waingofanira kuiona.
Kunyange zvakadaro, nekuuya kweHDR sechimwe chinhu chiri kuwedzera kuwanda kwemaTV, kubuda kwemashoko (ziso ini handina kutaura kujekesa ichazokurukurwa gare gare) inoshandiswa kune vashandi maererano neNits-dzimwe Nits, zvinoreva TV inogona zvinokonzerwa nechimwe chiedza, nechinangwa chekutanga chekusimbisa HDR-pamwe nehutano hwakagadzikana kana kuti generic HDR effect inogadzirwa kuburikidza neTV inoshandiswa mukati .
Kuti uzvichengetedze nekuda kwechiitiko ichi mukufambira mberi kwehutano hweTV, pamwe nekushambadzira hype, unoda kuziva kuti kubuda kwakadini kunowanikwa mumaterevhizheni uye mavhidhiyo emagetsi.
Niti: Funga nezveTV yakafanana neSuva, iyo inobudisa chiedza zvakananga. Nits chiyero chekuyera kwetambo terevhizheni inoendesa kumeso ako (luminance) mukati mekupa nzvimbo. Pane imwe yehutano hwepamusoro, NIT yakawanda yakawanda yakatengesa yakaenzana neimwe candela pamamita mita (cd / m2 - chiyero chakaenzana chekudzika kwechiedza).
Kuisa izvi nenzira yakajeka, muvhareji weTV angave nekwanisi yekubudisa 100 kusvika 200 Nits, nepo maTV anoenderana neHRR angave akakwanisa kubudisa 400 kusvika 2,000 nits.
Lumens: Lumens izwi rinowanzoreva kuratidza chiedza, asi kune vhidhiyo mapurojekiti, izwi rinonyanya kushandiswa ndeye ANSI Lumens (ANSI inomirira America National Standards Institute).
Kana mavhidhiyo mavhidhiyo, 1000 ANSI Lumens ndiyo inonyanya kukoshesa kuti purojekitori inokwanisa kukwanisa kubudiswa mumusha wekutambisa midziyo, asi yakawanda yemapurogiramu emapurisa emitambo kubva pa1 500 kusvika ku 2,500 majekesi anSI ekubuda kwechiedza. Kune rumwe rutivi, zvinowanzoita mavhidhiyo mavhidhiyo (anoshandisa mabasa akasiyana-siyana, ayo angasanganisira kuvaraidza kumba, bhizimisi, kana kushandiswa kwezvidzidzo, ini ndinokwanisa kubudisa 3 000 kana kupfuura ANS lumens).
Maererano neNits, anSI ANS ndiyo chiyero chechiedza chinoratidzika pane imwe nzvimbo yemamita mita yakaita mita imwe kubva kune imwe candela chiedza che source. Chimbofunga nezvechifananidzo chakaratidzwa muvhidhiyo yekuongorora, kana kuti rusvingo semwedzi, unoratidza chiedza kumuratidzi.
Nits vs Lumens
Pakufananidza Nits kuLumens, nemashoko akajeka, 1 Nit inomiririra chiedza kupfuura 1 ANSI lumen. Kusiyana kwemasvomhu pakati peNits naLumens kwakaoma. Zvisinei, kune mutengi achienzanisa terevhizheni nevhidhiyo projector, imwe nzira inoratidza kuti 1 Nit ndiyo yakaenzana nhamba ye 3.426 ANSI Lumens.
Uchishandisa iyo nhovo yekuongorora, kuitira kuti uone kuti nhamba chaiyo yeNits inofananidzwa nenhamba chaiyo yeAnsi lumens, unowedzera nhamba yeNits ne 3.426. Kana iwe uchida kuita zvitsva (iwe unoziva chiedza uye unoda kuwana zvakaenzana nazvo muNits), iwe unogona kugovera nhamba yeLumens ne 3.426.
Heano mimwe mienzaniso:
- 200 Niti ndiyo yakaenzana ne 685 ANSI Lumens
- 500 Nits akaenzaniswa ne-1,713 ANSI Lumens
- 730 Niti inofananidzwa ne-2 500 ANSI Lumens
- Zviuru zvitanhatu zvakaenzana ne-3,426 ANSI Lumens
- 1,500 Nits yakaenzana ne 5139 ANSI Lumens
- 2 000 Nits yakaenzana ne-6,582 ANSI Lumens
Sezvaunogona kuona, kuitira kuti vhidhiyo yepurojekiti iwane chiedza chinokwana zvakaenzana neNigiti 1 000 (ramba uchiyeuka kuti uri kuisa mhepo yakafanana yekamuri uye nzvimbo dzekuvhenekera mumakamuri zvakafanana) - mujekesi unoda kukwanisa kuti zvibudise zvinokwana 3,426 ANSI Lumens, iyo iri kunze kwepamusoro kune yakawanda yakazvitsaurira yemakambani emitambo.
Zvisinei, purojekiti inogona kubudisa 1,713 Ansi Lumens, iyo inowanikwa nyore nyore kune mavhidhiyo emagetsi, inogona kufanana neTV ine chiedza chinobva 500 Nits.
Vhidhiyo neVhidhiyo Purojekiti Chiedza Chigumo MuIchokwadi Real
Kunyange zvazvo zvose zvataurwa pamusoro apa "techie" pamusoro peNits uye Lumens zvinopa chirevo chekuenzanirana, munyika chaiyo yezvidzidzo, iyo dzose nhamba dzinongova chikamu chenyaya yacho.
Semuenzaniso, ramba uchiyeuka kuti kana TV kana video projector yakaiswa seyakakwanisa kubudisa 1 000 Nits kana Lumens, izvo hazvirevi kuti TV kana purojekiti inogumira kuti chiedza chikuru nguva dzose. Mafuremu kana zviratidzo kakawanda zvinoratidza mararamiro akajeka uye masikati, pamwe nekusiyana kwemavara. Zvose izvi zvakasiyana-siyana zvinoda zvakasiyana-siyana zvekubuda kwechiedza.
Mune mamwe mazwi, une nzvimbo apo iwe unoona Zuva iri mudenga, chikamu ichocho chemufananidzo chingareva TV kana video projector kuti ibudise huwandu hweMiti kana Lumens. Zvisinei, zvimwe zvikamu zvemufananidzo, zvivakwa zvakadaro, nzvimbo, uye mumvuri, zvinoda zvakawanda zvishoma zvishoma, zvichida pa100 chete kana 200 Nits kana Lumens. Uyewo, mavara akasiyana-siyana anoratidzirwa muzvikamu zvakasiyana-siyana zvinowanikwa mukati meforamu kana nzvimbo.
Pfungwa huru apa ndeyokuti kuenzanisa pakati pezvinhu zvakajeka uye zvinhu zvakasviba zvakangofanana, kana kuti zvakapedzana zvakafanana, zvichiita kuti pave nemafungiro akafanana. Izvi zvinonyanya kukosha kune ma TVV- OLED maTV anovhiringidza maererano ne LED / LCD TV . OLED teknolojia yekombiyuta haikwanisi kutsigira maNititi akawanda ekubuda kwechiedza se LED / LCD TV tekotori inogona. Zvisinei, kusiyana ne LED / LCD TV, uye OLED TV inogona kubudisa yakasviba yakasviba.
Zvinorevei ndezvokuti kunyange zvazvo hurumende yakanakisisa yeHRRR ye LED / LCD TVs iyo inokwanisa kuratidza zvinenge 1 000 Nits, iyo inofanirwa neHRR yeViTV ndeye 540 Nits. Zvisinei, yeuka, mutemo unoshanda kune huwandu hweMitengo yakabuda, kwete kuenzanisa Nits zvakabudiswa. Saka, kunyange iwe uchacherechedza kuti 1 000 Nit anokwanisa LED / LCD TV inotarisa kupenya kupfuura TV yeOLED apo, ichiti, zvose zviri kuratidza Sun kana kuti yakajeka denga, OLED TV ichaita basa iri nani pakuratidza zvikamu zvakasviba zve chifananidzo ichocho, saka iyo Dynamic Range (iyo nzvimbo iri kure pakati pepamusoro-soro mutsvuku uye yakawanda inogona kunge yakafanana).
Uyewo, pakuenzanisa TV yakagadzirirwa neHRR inokwanisa kubudisa maNikiti 1000, ine projekiti yeVHR-enabled-enabled iyo inokwanisa kubudisa 2,500 ANSI lumeni, iyo HDR effect paTV ichave inoshamisa zvikuru maererano ne "kuonekwa kwakaratidzwa".
Mukuwedzera, zvinhu zvakadai sekutarisa muimba yakasvibiswa, zvakasiyana nekamuri yakazara, svinga rekona, chinyorwa reflectivity (chezvijekesa), uye kugara kwemafuro, zvishoma kana zvishoma Nit kana kuti Lumen zvingave zvichidiwa kuti iwane zvakafanana zvinoonekwa .
Kune vhidhiyo mapurogiramu, pane musiyano pakati pechiedza chinobudiswa pakati pevashanduri vanoshandisa LCD neDLP teknolojia. Izvi zvinorevei kuti LCD projekiti ine simba rokutakura chiedza chakaenzana chekubuda kwepamusoro kwehutano hwemachena nemuvara, asi DLP vashanduri vanoshandisa mavara emavhiri havana simba rekubudisa mazinga akaenzana emuchena uye mavara. Kuti uwane mamwe mazwi, taura kune shamwari yedu nyaya: Video Projectors uye Color Brightness
The Audio Analogy
Chimwe chimiro chekutaura neHDR / Nits / Lumens nyaya inofanana nenzira yaunofanirwa kuswedera kumagetsi emagetsi ekutaura. Kungofanana nekumhanyisa kana muimba yekugamuchira mvumo yemusha inotaurira kupa watts zana pamusana, hazvirevi kuti inokonzera simba idzodzo nguva dzose.
Kunyange zvazvo kukwanisa kwekukwanisa kubudisa 100 watts kunoratidza zvinotarisirwa kumimhanzi kana mafirimu soundtrack peaks, nguva yakawanda, nemanzwi, uye mazhinji mimhanzi nemishumo, uyo anogamuchira chete anongoda kubudisa 10 watts kana kuti kuti iwe unzwe zvaunoda kunzwa. Kana uchida mamwe mashoko, taura nyaya yedu: Kunzwisisa Amplifier Power Output Specifications .
Chiratidzo Chiedza vs Chiedza
Kune maTV uye Vhidhiyo Purojekiti, Nits uye ANSI Lumens zvose zviri zviviri zviyero zvekubuda kwechiedza (Luminance). Zvisinei, izwi rokuti Brightness rinoenderana kupi?
Chiedza hachisi chakafanana neicho chaiyo chinonzi Luminance (chiedza chinobuda). Zvisinei, Chiedza chinogona kutumidzwa sekukwanisa kwemuoni kuti aone kusiyana kweLuminance.
Kujeka kunogonawo kuratidzirwa seperesenti yakajeka yakajeka kana yeperesenti inopenya yakajeka kubva kunzvimbo yekuzvidzivirira pasi (yakadai seBrightness control yeTV kana yevhidhiyo projector - ona mamwe tsanangudzo pasi). Mune mamwe mazwi, Chiedza ndicho chirevo chekutenderera (chinenge chakajeka, chisina kujeka) cheMuminance yakanzwisisika, kwete chaiyo yakagadzirwa Luminance.
Nzira iyo terevhizheni yeTV kana Vhidhiyo inotungamirira mabasa ndeyokugadzirisa huwandu hwemhando yakasviba inooneka pahwindo. Kuderedza "kubwinya" kunoguma mukuita zvikamu zvakasvibirira zvechifananidzo chima, zvichiita kuti zvishoma nezvishoma uye "dope" rione munzvimbo dzakaoma dzechifananidzo. Kune rumwe rutivi, kukwidza "kubwinya" kune migumisiro pakuita zvikamu zvakasviba zvechifananidzo chikajeka, zvinoita kuti nzvimbo dzine rima dzechifananidzo chionekwe sechephena, uye mufananidzo wose unoita sekutarisa wakashambwa.
Kunyange Chiedza chisina kufanana neicho chaiyo chinonzi Luminance (chiedza chekubuda), zvose maTV uye vhidhiyo vogadzira vhidhiyo, pamwe nevanoongorora mhizha, vane tsika yekushandisa izwi rokuti Brightness sekubata-zvose nokuda kwemashoko emagetsi anotsanangura chiedza chinobuda, iyo inosanganisira Nits uye Lumens. Imwe muenzaniso ndeyekushandiswa kwaEpson kweshoko rokuti "Kuratidza Bhuni" iyo yairehwa munyaya ino.
TV uye Projector Light Output Guidelines
Kuyera chiedza chinobudiswa maererano neukama pakati peNits naLumens inobata zvakawanda zvemasvomhu nefizikiki, uye kuibikira pasi mu tsanangudzo pfupi hazvisi nyore. Saka, apo maTV uye makambani ekujekesa mavhidhiyo achirova vatengi nemashoko akadai seNits uye Lumens asina mamiriro ezvinhu, zvinhu zvinogona kuvhiringidza.
Zvisinei, kana uchifunga nezvekubuda kwechiedza, heano mimwe mirairo yekuchengeta pfungwa.
Kana uri kutengesa 720p / 1080p kana Kwete-HDR 4K Ultra HD TV, ruzivo rweMiti haruwanzosimudzirwa, asi rwakasiyana kubva ku 200 kusvika ku300 Nits, iyo yakajeka zvakakwana kune zvinyorwa zvezvinyorwa uye nzvimbo dzakawanda dzemwenje (kunyange zvazvo 3D zvichaonekwa zvakasviba). Kwamunofanirwa kutarisa maNits zvakanyanya kunyanya ndeye 4K Ultra HD TV dzinosanganisira HDR. Pano ndipo pane yakakwirira chiedza chinobuda, zviri nani.
Kune 4K Ultra HD LED / LCD TV iyo iine HDR-inowirirana, nhamba ye 500 Nits inopa moderedza HDR effect (tsvaga kushevedza saHRR Premium), uye maTV anobudisa 700 Nits achapa mhinduro yakanaka kune HDR content. Zvisinei, kana iwe uri kutsvaga mhinduro yakanakisisa inogona kuitika, 1000 Nitso inofanirwa kutarisa inowanikwa (tsvaga mabhii akadai seHRR1000), uye iyo Nits kumusoro-soro yepamusoro-soro HDR LED / LCD TVs 2 000 (kutanga nemamwe maTV akaiswa muna 2017).
Kana uchingotenga TV yeOLED, chiedza chinobuda mumvura yakakura chinenge maNit 600 - iye zvino, yose yeHRR-inokwanisa maTV maTV inofanirwa kukwanisa kubudisa chiedza chema 540 Nits. Zvisinei, kune rumwe rutivi rwey equation, sezvakambotaurwa kare, maTV maTV anogona kuratidza mutsvuku wakakwana, iyo LED / LCD TV haigone - kuitira kuti 540 kusvika 600 Nits rating pa OLED TV inogona kuratidza chiitiko chakanaka nehuwandu hweHDR kupfuura LED / LCD TV inogona kuenzaniswa paNit level imwechete.
Zvisinei, kunyange zvazvo 600 Nit OLED TV uye 1 000 Nit LED / LCD TV inogona kutaridzika inoshamisa, iyo 1 000 Nit LED / LCD TV icharamba iine chigumisiro chinoshamisa zvikuru, kunyanya muimba yakanaka. Sezvambotaurwa kare, Nits 2 000 iye zvino ndiyo yakakwirira yepamusoro yezinga inogona kuwanikwa paTV, asi izvozvo zvingaguma nemifananidzo yakaratidzwa yakaoma zvikuru kune vamwe vataridzi.
Kana uri kutengesa vhidhiyo projector, sezvataurwa pamusoro apa, chiedza chinobuda 1000 000 ANSI Lumens chinofanira kunge chiri chakanaka kuti chiongorore, asi vazhinji vashanduri vanogona kubudisa 1,500 kusvika 2 000 ANSI lumens, iyo inopa hutano huri nani mumba inogona kuve yakasviba zvachose. Uyezve, kana iwe uchiwedzera 3D kuti uenzane, funga purojekiti ine 2,000 kana kupfuura, chiedza chemasvosve e 3D zviri zvishoma nezvishoma kupfuura vamwe vavo 2D.
Vhidhiyo yeVHR-enabled-projection hainawo "point-to-point accuracy" pamwe chete nezvinhu zviduku zvakajeka zvinopikisana nemasikati. Semuenzaniso, HDR TV icharatidza nyeredzi pamusoro peusiku husiku hwakajeka kupfuura zvinogona kuwanikwa kune watengi-based HDR projector. Izvi zvinokonzerwa nevashanduri vane ruzivo mukuratidza kupenya kwakakwirira mune imwe nzvimbo duku zvikuru maererano nechitarisiko chemafu chakakomberedza.
Nokuda kwekanakisisa HDR yakawanikwa ikozvino (iyo ichiri kuperevedza nekupenya kwakajeka kweNikiti yeNit 1 000), unofunga kuongorora 4K HDR-enabled projoror iyo inogona kubudisa zvinenge 2500 ANSI lumens. Pari zvino, hapana hurumende yeHRR yakabuda yevashandi-based video projector.
The Bottom Line
Imwe shoko rekupedzisira rezano, sezvinongoita chero zvakataurwa kana kuti tech inoshandiswa kwauri nemuiti kana mutengesi, usafungidzira-chengetedza mupfungwa kuti Nits uye Lumens inongova chikamu chimwechete chekuenzanisa kana uchifunga nezvekutenga TV kana video projector .
Iwe unofanirwa kutora iyo purogiramu yose mukufungisisa, iyo isingatauri chete inoreva chiedza chinobuda, asi kuti iyo yose yakaoneka sei kwauri (yakaona kubwinya, ruvara, mararamiro, mhinduro yekufamba , kutarisa ingiro), nyore kwekugadzirisa uye kushandiswa, kana iwe usingazoshandisi panze audio system ) uye kuvapo kwezvimwe zvinodiwa zviri nyore (zvakadai sekubudiswa kwetaneti mumaTV). Uyewo chengetedza mupfungwa kuti kana uchida TV yeHDR yakagadzirirwa, unofanira kutora zvinyorwa zvinowanikwa zvinowanikwa mukufungisisa (4K Streaming uye Ultra HD Blu-ray Disc ).