LCD inomiririra "Liquid Crystal Display". LCD teknolojia yakange iine isu kwemakumi emakore anoverengeka uye inoshandiswa mumhando dzakasiyana-siyana zvekuona mavhidhiyo, kusanganisira mapurisa ekuonesa pane zvigadzirwa zvemagetsi nemashandisi emagetsi emagetsi, uyewo zviratidzo zvemagetsi. Zvichida kushandiswa kunonyanya kuzivikanwa kune vatengi kushandiswa kwavo mumaterevhizheni .
Mumaterevhizheni, LCD chips zvakarongedzwa pamusoro pechiso chepamusoro uye kushandisa backlight ( inowanzozivikanwa ndiyo LED ), LCD TV dzinokwanisa kuratidza mifananidzo. Zvichienderana nehutano hwehutarisiro hweTV, nhamba yeLCD chips inoshandiswa inogona kuverenga mumamiriyoni (rimwe nerimwe LCD chip rinomirira pixel).
LCD Inoshandisa Mukusvitsa Purogiramu
Zvisinei, kunze kweTV, LCD Technology inoshandiswa mumavhidhiyo akawanda emagetsi. Zvisinei, panzvimbo yenhamba yakawanda yeLCD chips yakaiswa pamusoro pechando chepamusoro, vhidhiyo projector inoshandisa 3 zvakagadzirirwa LCD Chips kugadzira nekugadzira mifananidzo pane imwe chinyorwa chekunze. Idzi nhatu LCD chips imwe neimwe ine nhamba yakafanana yemapiksesi ayo akaenzana nekugadzirisa kuratidzwa kweprojekti, kunze kwekushandiswa kwemapikisi ekuchinja mavhidhiyo anoshandiswa mune mamwe mavhidhiyo mapurojekiti kuti aratidze sarudzo yakakwirira ye "4K-" "pasina kudiwa nhamba yepikisi .
3LCD
Imwe rudzi rweLCD video yekuongorora teknolojia inoshandiswa inotumidzwa se 3LCD (isingafaniri kuvhiringidzwa ne 3D).
Muzvikamu zvitatu zveLL projector, mwenje unochengetedza mwenje unotumira kuchena kwechichena mukereke ye 3-Dichroic Mirror iyo inoparadzanisa chiedza chakachena muzvitsvuku zvakasvibirira, zvitsvuku, uye zvebhuruu, izvo zvinozopfuura nepasangano reLCD chip chechitatu chips (imwe yakasarudzwa kumusana wega wega wega). Iyo mivara mitatu inobva yasanganiswa kushandiswa nejeri, yakapfuura nepagungano re lens ndokuzoendeswa kuchikanda kana rusvingo.
Kunyange zvazvo magetsi-based light sources ari anoshandiswa zvikuru, mamwe majekiti 3LCD angashandisa Laser kana Laser / LED-based light source , panzvimbo yemwenje, asi mugumisiro wekupedzisira wakafanana - mufananidzo unoratidzwa pachikona kana rusvingo.
3LCD Variants: LCOS, SXRD, uye D-ILA
Kunyange zvazvo 3LCD yekombiyuta imwe yezvinhu zvinowanzoshandiswa pakushandura mavhidhiyo mumavhidhiyo ( pamwe chete neDLP ), pane mamwe maLCD-based variants. Mhando imwechete yezvinyorwa zvitsva (Lamp / Laser) inogona kushandiswa nemhando idzi dzeLCD.
LCOS (Liquid Crystal paSilicon), D-ILA (Digital Imaging Light Amplification - inoshandiswa neJVC) , uye SXRD Silicon Crystal Reflective Display - inoshandiswa na Sony), inosanganisira mamwe maitiro ehutatu hweStudio 3 neCDD.
Zvimwe zvitatu zvakasiyana-siyana zvakafanana ndezvokuti pane chiedza chinopfurikidza neLCD chips kugadzira zvidhori se 3LCD teknolojia, chiedza chaicho chinoputirwa pamusoro peLCD chips kuita zvidhori. Somugumisiro, kana zvasvika pamugwagwa unovhenekera, LCOS / SXRD / D-ILA inotumidzwa se "reflective" technologies, asi 3LCD inonzi "inotenderera" teknolojia.
3LCD / LCOS Makomborero
Chimwe chezvinhu zvinokosha zvemhuri yeLCD / LCOS yemavhidhiyo maitiro ekugadzirwa kwezvinhu ndeyekuti mutsvuku nemuvara wehutano hunofanana. Izvi zvinopesana neDLP teknolojia iyo, kunyange zvazvo iine simba rekubudisa mararamiro akanaka uye mavara emagetsi, haikwanise kubudisa zvose zvitsvuku uye ruvara ruvara panzvimbo imwe chete mumamiriro apo iyo projekiti inoshandisa marara girasi.
Munharaunda yeDLP yakawanda (kunyanya kushandiswa kwemusha) chiedza chakachena chinofanira kupfuura nemuvara gumbo rine Rweru, Green, uye Blue, izvo zvinoderedza kuwanda kwechiedza kuchibuda kune imwe mugumo. Kune rumwe rutivi, DLP vashanduri vanoshandisa kwete mavara-gumbo teksikiti (yakadai se LED kana Laser / LED Hybrid light sources kana 3-chip models) inogona kuita chiyero chakafanana chemuchena nemuvara. Kuti uwane mamwe mashoko, verenga shamwari yedu nyaya: Video Projectors uye Color Brightness
3LCD / LCOS Dambudziko
An LCD projector anowanzotarisa nguva inoratidza izvo zvinonzi "muchengeti wemasuo". Sezvo chinyorwa chacho chakaumbwa nemapikseli ega, mapikisikoni anogona kuonekwa pahwindo guru, saka achipa maonero ekuona chifananidzo kuburikidza ne "mukova wekuvhara".
Chikonzero cheizvi ndechokuti mapikiseli akaparadzaniswa nemiganhu yepakati (isina-akarara). Sezvaunowedzera huwandu hwechifananidzo chakafananidzirwa (kana kuderedza kusarudzwa kwechiyero chechiyero chechiyero) iyo miganhu ye pixel inowanzoita kuti ionekwe, zvichipa kupa maonero ekuona chifananidzo kuburikidza ne "mukova wekuvhara". Kuti abvise izvi, vashandisi vanoshandisa teknolojia dzakasiyana-siyana kuti kuderedze kuonekwa kwemiganhu isina kukwana yemapikisi.
Kune rumwe rutivi, nokuda kweLCD-based video projector iyo ine marefu ekugadzirisa maitiro ( 1080p kana kupfuura ), izvi hazvisi kuonekwa sezvo mapikiseti ari maduku uye miganhu yakaonda, kunze kwekuti iwe uri pedyo nekona, uye chinyorwa chikuru kwazvo.
Imwe nyaya inogona kuitika (kunyange zvisingawanzoitiki) ndeyePixel kupisa. Sezvo LCD Chip yakagadzirwa nepeji yemapikseli ega, kana imwe pixel inopisa iyo inoratidza hutsva hunopisa kana kuti mutsvuku pikicha yakafananidzirwa. Piksekisi yega yega haigone kugadziriswa, kana imwe kana mapikisikisi akawanda achipisa, chip chipfe chinofanira kuchinjwa.
The Bottom Line
Vhidhiyo mapurojekiti anosanganisira LCD teknolojia inowanika, inotengwa, uye inoshanda kune zvakasiyana-siyana zvekushandisa, kubva mune bhizimisi uye dzidzo kuenda kuimba yemitambo, kumitambo, uye kuvaraidzwa kwekugara kumba.
Mienzaniso yeVCD-based video projection yekushandisa pamba yepamusha inosanganisira:
- Epson Home Cinema 2045 3LCD Video Projector - Buy kubva kuAmazon
- Sony VPL-HW45ES SXRD Video Projector - Tenga Kubva kuAmazon
Kuti uwane mienzaniso yakawanda, tarisa mazita edu:
- Iyo Yakanakisisa Vhidhiyo Vhidhiyo Projector (inosanganisira zvose DLP uye LCD types).
- Best 1080p uye 4K Video Projectors (inosanganisira zvose DLP uye LCD types).