01 ye 05
Chokwadi Pamusoro pe 4K Video Projectors
Kubvira pakuzivisa kwavo muna 2012, kubudirira kwe 4K Ultra HD TVs hakugoneki. Kusiyanisa kubva kune dhiyabhorosi iyo yaiva 3DTV, vatengi vakagumburwa pa 4K bandwagon nekuda kwekuwedzera kwechigadziriswa , HDR , uye ruvara rukuru rwemutambo. Zvose izvo zvakanyatsosimudzira kuona ma TV.
Kunyange zvazvo Ultra HD TVs ichibhururuka kubva mumashefu ezvitoro, vazhinji vedzimba yevhidhiyo video projection zviripo achiri 1080p pane 4K. Chikonzero chei chikuru? Zvechokwadi, kusanganisira 4K muvhidhiyo yeprojekti inodhura zvikuru kupfuura iyo ine TV, asi iyo haisi nyaya yose.
02 of 05
Ndizvo Zvose Pamusoro pePixels
Tisati tapinda mune maitiro 4K ari kushandiswa muTVs vs video projectors, tinoda kuva nepepanotsi yekushanda kubva. Pfungwa iyoyo ndiyo pixel.
A pixel inotsanangurwa sechinhu chechifananidzo. Pixel imwe neimwe ine ruvara rwebhuruu, ruvara, uye ruvara rwebhuruu (zvinonzi se-pi-pixels). Kuti ugadzire mufananidzo wakazara paTVV kana purogiramu yakatarisa chinyorwa pane nhamba huru yepiksekisi inodiwa. Nhamba kana mapikisesi anogona kuratidzwa anogadzirisa sarudzo yeganda.
4K Inoshandiswa MuTV
Mumaterevhizheni, kune guru guru rekona umo "kuisa mukati" nhamba yemapiksesi inodiwa kuti iratidze chisarudzo chaicho.
Pasinei neiko chaiyo yekrini yekuyera kwemaTV 1080p, pane nguva dzose 1 920 pixels inomhanya kune imwe skrini pane imwe neimwe (nemutsara) uye 1,080 pixels ichikwira uye ichidzika pasi pehwindo vertically (pamutsetse). Kuti uone nhamba yakazara yepiksekisi yakavhara yose skrini, unowedzera nhamba yemapiksesi ekurudyi ane nhamba yemapiksesi akafanana. KwemaTV 1080p ayo anokwana anenge mamiriyoni 2.1 emapikiseli. Kune 4K Ultra HD TV, pane 3 480 pixels yepamusoro uye 2,160 pixels vertical, zvichiita kuti zviyero zvamiriyoni 8,3 zvizadze skrini.
Icho ndicho chokwadi mazana mapikiseti, asi neTV screen size ye 40, 55, 65, kana 75 masendimita, vataki vane nzvimbo yakakura (kureva kutaura) kushanda nayo.
Zvisinei, nokuda kweDLP neLCD video projectors, kunyange zvazvo mifananidzo iri kuratidzwa pahwindo guru-inofanirwa kupfuura-ichi kana kuratidza chips mukati meprojekororo iduku duku pane LCD kana OLED TV panhizha.
Mune mamwe mazwi, nhamba inodikanwa yepiksekisi inofanira kuva duku kuitira kuti ikwaniswe mu chipani ine mutsara wepamusoro inogona kunge inenge inenge 1-inch square. Izvi zvinoda kunyanya kuwanda kwekugadzira uye kutaridzika kwehutano zvinowedzera zvakanyanya mari yekugadzira uye mutengi.
Somugumisiro, kushandiswa kwesarudzo yeKK muvhidhiyo yeprojekiti haisi yakarurama sezvazviri muTV.
03 of 05
Nzira Yakashata: Kudzvora Mari
Sezvo kuvhara mapiksesi ose anodiwa 4K padiki chip (s) inodhura, JVC, Epson, neTexas Instruments vauya nedzimwe nzira iyo vanoti vanozvipira zvakafanana zvinoonekwa zvichiita mari shoma. Nzira yavo inotumidzwa sePixel Shifting. JVC inoreva kushandiswa kwavo seShift, Epson inoreva ivo se 4K Kuvandudza (4Ke), uye Texas Instruments inoreva yavo zvisina kurongwa seTI UHD.
Epson uye JVC Nzira yeLCD Projectors
Kunyangwe kune zvishoma kusiyana pakati peEpson neJVC maitiro, hezvino izvo zvinokosha zvekuti nzira dzavo mbiri dzinoshanda sei.
Panzvimbo yekutanga ne chipfeko chinodhura chine mapekisi ose emamiriyoni 8,3, Epson neJVC vanotanga nemayero 1080p (2.1 million pixels) chips. Mune mamwe mazwi, pamusana pavo, Epson neJVC vasati vamboona mavhidhiyo mavhidhiyo 1080p.
NeShift kana 4Ke system yakashandurwa, kana chiratidzo chekuona mavhidhiyo ye 4K ichionekwa (sekubva kuApp HD Blu-ray uye kusarudza masangano ekushambadzira ), iyo yakakamurwa kuva 2 1080p mifananidzo (imwe neimwe ine hafu yemufananidzo weK 4K). Purojekiti yacho inokurumidza kushandura imwe pixel diagonally shure-uye-kunze nehafu-a-pixel nekukwirira uye inojekesa chigumo pahwindo. Kuchinja kwekufambisa kwakakurumidza, iyo mapenzi muoni kuti aone chigumisiro sechokuenzanidza kutarisa kwechimiro chechina chekusarudza.
Asi zvakadaro, sezvo pikisi yekuchinja inenge hafu ye pixel, kunyange zvazvo zvingaonekwa zvinogona kunge zvakafanana ne 4K kune 1080p, zvepamusoro, hazvirevi kuti mapikiseti akawanda anowanikwa pachikona. Kutaura zvazviri, nzira yekuchinja yepikisi inoshandiswa neEpson neJVC inoguma pakuratidzwa kwemamiriyoni mana emadhora "anoona", kana kaviri nhamba se 1080p.
Kune 1080p uye pasi pekugadzirisa zvinyorwa zvayo, mune zvose Epson uye JVC maitiro, pixel kushandura teknolojia inosimudzira mufananidzo (mune mamwe mashoko, DVD yako neBlu-ray Disc yekuunganidza ichawana tsananguro yepamusoro pamusoro pepurojekiti yakakwana 1080p).
Inofanirawo kutaridzwa kuti apo Pixel Shift teknolojia inoshandiswa, haishandisi zvekuona 3D. Kana chiratidzo chema 3D chinowanikwa kana Motion Interpolation ichibviswa, Shift kana 4K Kuvandudza kunogadziriswa, uye mufananidzo unoratidzwa uchava 1080p.
Mienzaniso yeEpson 4IIVaiona .
Mienzaniso yeJVC eShift Projectors.
The Texas Instruments Approach For DLP Projectors
Epson neJVC ndivo mapurisa epurogiramu anoshandisa teknolojia yeLCD, asi kuchinja kwepikisi kunoshandiswa kwave kwakagadzirwa kwepasitori yepaTexas Instruments DLP.
Panzvimbo yekushandisa 1080p DLP chip, Texas Instruments iri kupa chip chinotanga ne 2716x1528 (4.15 mamiriyoni) pixels (iyo inowiri nhamba iyo Epson neJVC chips dzinotanga ne).
Izvi zvinorevei kuti apo Pixel Shift inoshandiswa uye mamwe mavhidhiyo ekugadziriswa ari kushandiswa mune purojekiti achishandisa TI system, pane anenge mamiriyoni mazana mana emapikiseli, mujekisi wacho anotumira mamiriyoni 8,3 "maziso" anoonekwa pahwindo - kaviri kana kupfuura Shift yeJVC uye Epson's 4Ke. Kunyange zvazvo iyi sarudzo isiri yakangofanana neye Sony's Native 4K, pakuti haina kutanga nemapikiseli emamiriyoni 8,3, inouya nenzira yepamusoro yepedyo, pamutengo wakaenzana neyashandiswa neEpson neJVC.
Kungofanana neEpson uye JVC, zviratidzo zvinowanikwa mumavhidhiyo zvinoshandiswa zvakare kana kushandiswa zvakakodzera uye, kana uchiona zvinhu zve 3D, Pixel Shifting inobviswa.
Optoma ndiyo yekutanga kushandisa TI UHD system, inofanira kuteverwa naAcer, Benq, SIM2, Casio, uye Vivitek (rambai makarongedzwa zvemashoko).
04 of 05
Nzira Yakagadzirwa Nesimba: Sony Inoenda Iga Yacho
Sony ane tsika yekuenda nenzira yake (yeuka BETAMAX, miniDisc, SACD, uye DAT makaseti emakaseti?) Uye ivo vari kuitawo saizvozvo mu 4K video kuratidzwa. Panzvimbo pekuti mari yakawanda inobatsira yePixel inoshanduka, kubva pakutanga Sony yaenda "Native 4K", uye yakanyanya kutaura pamusoro payo.
Izvo zvinoshandiswa mumatunhu zvinoreva kuti mapikisi ese anodiwa anofanirwa kuronga chigadziro chechina chechina chinowanikwa mu chip (kana chaizvo zvitatu chipi - imwe yega yega yega ruvara rwekutanga).
Zvakakoshawo kuziva kuti pixel inowanikwa paSik 4K chipikisi inonyatsosvika 8.8 mamiriyoni pixels (4096 x 2160), iyo inyoyo yakafanana inoshandiswa mukutengesa cinema 4K. Izvi zvinoreva kuti zvose zvinokonzerwa nevashandi vemu 4K (Ultra HD Blu-ray, nezvimwe ...) inowedzera kukurudzira kune iyo yakawedzera 500,000 pixel count.
Zvisinei, Sony haishandisi nzira dzekushandura pixel kuti iite zvidhori 4K-semufananidzo. Uyezve, 1080p (kusanganisira 3D) uye zvinyorwa zvitsva zvinogadziriswa zvakasimudzirwa ku "4K-like" mufananidzo wechiratidzo.
Kubatsira kweSync nzira, yekuti, mutengi ari kutenga vhidhiyo projector umo nhamba yemapiksesi chaiwo epanyama chaizvoizvo zvishoma pane 4K Ultra HD TV.
Kukanganisa kwevashandi veSik 4K ndechokuti kune mari inodhura, nekutangira mutengo we $ 8,000 (kubva muna 2017). Wedzera mutengo wemuchina wakakodzera, uye iyo mhinduro inova inodhura zvakanyanya pane kutenga chinhu chikuru chekiratiro 4K Ultra HD TV - asi kana uri kutarisa mufananidzo 85-inches kana yakakura, uye unoda kuve nechokwadi kuti unoona 4K, iyo Sony kuswedera pedyo zvechokwadi chinhu chinodiwa.
Mienzaniso yeVideo Project yeVideo 4K
05 of 05
The Bottom Line
Izvo zvose zviri pamusoro apa zvinopfuurira kune iyo mazano 4K, kunze kwekuzvarwa kwemhando inoshandiswa na Sony, inoshandiswa zvakasiyana-siyana pane vhidhiyo yeprojekiti kupfuura iri paTV. Somugumisiro, kunyange zvazvo zvisingakoshi kuziva zvose zvezvenyanzvi, kana uchitenga "4K" video projector, vatengi vanodikanwa kuti vazive mavara akadai seNative, e-Shift, 4K Kuvandudza (4Ke), uye TI DLP UHD system.
Kune mhirizhonga inopfuurira, nevatsigiri kumativi ose maviri, pamusoro pezvakakodzera zvepixel kushandura sechinotsiva munhu wekuzvarwa 4K - iwe unonzwa mazwi "4K" "Faux-K", "Pseudo 4K", "4K Lite", akadzingwa kumativi ose apo iwe unoshandisa video projection reongororo uye utengese kune waunogara naye mutengesi.
Wakaona mifananidzo yakashandiswa uchishandisa imwe neimwe yezvisarudzo zvataurwa pamusoro pemakore kubva kuna Sony, Epson, JVC, uye munguva pfupi yapfuura Optoma, kazhinji zvakanyanya kuoma kutaura mutsauko pakati peimwe nzira, kunze kwekuti iwe ukaswedera pedyo nekona, uri kuona munharaunda yekuongororwa inotungamirirwa umo iwe uri kutarisa rumwe rutivi-ne-rutivi rwekuenzanisa rwemarudzi ose emushanduriro ayo akachengetedzwawo kune zvimwe zvinhu (maridza, kusiyana, chiedza chekubuda).
Nhengo 4K inogona kutarisa zvishoma "yakashata" zvichienderana neshizha rekuyera (chengeta zvidzidzo 120 masendimita uye kumusoro), uye nzvimbo chaiyo yakagara kure kubva pachigadziko - Zvisinei, kuti uise pachena, maziso ako anogona kungogadzirisa zvakanyanya-kunyanya nemifananidzo inofamba. Wedzera chokwadi chokuti kune kusiyana kwekuti mumwe nomumwe wedu anoona zvakanaka sei, hapana chakasarudzwa chemahwindo chemahwindo kana kutarisa nzvimbo iyo ichaita kuti zvive nemafungiro akafanana akasiyana nemuoneki wese.
Nekusiyana kwebhadharo pakati pevanhu vomunharaunda (uko mitengo inotangira painenge madhora 8 000) uye pixel kushanduka (uko mitengo inotanga kusingasviki $ 3,000), iyo inotovawo chimwe chinhu chaunofunga, kunyanya kana iwe ukaona kuti maonero anoonekwa akafanana.
Mukuwedzera, ramba uchiyeuka kuti kugadzirisa, kunyange zvazvo kwakakosha, inongova chinhu chimwe chete mukuwana mufananidzo wakaisvonaka wehutano - zvakare tora chiedza chekushandisa nzira , chiedza chinobuda , uye ruvara ruvara mukufungisisa, uye usakanganwa kuisa mukudiwa kwekanaka screen .
Zvakakosha kuita zvaunofunga kuti uone kuti sarudzo ipi inotarisa kwauri, uye ndeupi mararamiro / mhando yakakodzera bhajeti yako.