LCD imayimira "Maonekedwe a Crystal". Luso lamakono la LCD lakhala nafe kwa zaka makumi angapo ndipo imagwiritsidwa ntchito pamagwiritsidwe osiyanasiyana a mavidiyo, kuphatikizapo mawonetsedwe a pulogalamu zamagetsi ndi zipangizo zamagetsi, komanso chizindikiro cha digito. Ntchito yogwiritsidwa ntchito kwambiri kwa ogula ndi ntchito yawo pa ma TV .
Ma TV, makina a LCD amakonzedwa kudutsa pawindo ndi kugwiritsa ntchito backlight ( mtundu wofala kwambiri ndi LED ), TV za LCD zimatha kusonyeza zithunzi. Malinga ndi chiwonetsero chawonetsero cha TV, chiwerengero cha zipangizo za LCD zomwe zingagwiritsidwe ntchito zingathe kuwerengera mamiliyoni (chipangizo chilichonse cha LCD chimaimira pixel).
LCD Gwiritsani Ntchito Pulogalamu ya Video
Komabe, kuwonjezera pa ma TV, LCD Technology imagwiritsidwa ntchito pulogalamu yamakono ambiri. Komabe, mmalo mwa zida zambiri za LCD zomwe zimayikidwa pawindo, mawonekedwe a vidiyo amagwiritsa ntchito LCD Chips 3 kuti apange ndi kupanga zithunzi pazenera zakunja. Zithunzi zitatu za LCD zili ndi zipilili zomwezo zomwe zimagwirizana ndi ndondomeko yawonetsera pulojekitiyi, kupatulapo njira zamagetsi zosinthira zomwe zimagwiritsidwa ntchito m'mawero ena a kanema kuti ziwonetsetse chiwongolero chapamwamba "Chithunzi cha 4K" popanda kukhala ndi mapepala .
3LCD
Mtundu umodzi wa makina opanga mavidiyo a LCD amagwiritsidwa ntchito ngati 3LCD (osasokonezedwa ndi 3D).
M'magetsi ambiri a 3LCD, magetsi opangira nyali amatumiza kuwala koyera kupita ku msonkhano wa Mirror wa 3-Dichroic womwe umagawaniza kuwala koyera kukhala mzere wofiira, wobiriwira, ndi wa buluu wosiyana, umene umadutsa mu msonkhano wa LCD chip womwe uli wa zipilala zitatu (imodzi yosankhidwa mtundu uliwonse). Mitundu itatuyi imagwiritsidwa ntchito pogwiritsa ntchito ndodo, kudutsa pagulu la lens ndikuyang'ana pawindo kapena khoma.
Ngakhale magetsi opangidwa ndi magetsi ndi omwe amagwiritsidwa ntchito kwambiri, magetsi ena 3LCD angagwiritse ntchito malo opangira Laser kapena Laser / LED , m'malo mwa nyali, koma zotsatira zake ziri chimodzimodzi - chithunzi chikuwonetsedwa pawindo kapena khoma.
3LCD Zosiyana: LCOS, SXRD, ndi D-ILA
Ngakhale katswiri wa teknoloji 3LCD ndi imodzi mwa zipangizo zamakono zomwe zimagwiritsidwa ntchito pogwiritsa ntchito mavidiyo ( pamodzi ndi DLP ), pali mitundu yosiyanasiyana ya LCD. Mitundu yofanana ya magetsi (Chingwe / laser) ingagwiritsidwe ntchito ndi mitundu iyi ya LCD.
LCOS (Liwu la Crystal pa Silicon), D-ILA (Digital Imaging Light Amplification - yogwiritsidwa ntchito ndi JVC) , ndi SXRD Silicon Crystal Reflective Display - yogwiritsidwa ntchito ndi Sony), ikuphatikiza zina mwa mafilimu 3LCD ndi DLP.
Zomwe mitundu itatu yonseyi ikufanana ndi yakuti m'malo mowala kupyolera mu LCD chips kupanga mapangidwe monga teknoloji ya 3LCD, kuwala kwenikweni kumathamangitsidwa pamwamba pa LCD chips kupanga zithunzi. Zotsatira zake, zokhudzana ndi njira yowala, LCOS / SXRD / D-ILA imatchulidwa ngati "malingaliro" a matekinoloje, pamene 3LCD imatchedwa teknoloji ya "kusintha".
3LCD / LCOS Ubwino
Chinthu chimodzi chofunika kwambiri cha banja la LCD / LCOS la mafilimu opanga mafilimu ndizoti zoyera ndi zoyera zomwe zimapezeka ndizofanana. Izi zikusiyana ndi teknoloji ya DLP yomwe, ngakhale ili ndi mphamvu yopanga mtundu wabwino kwambiri ndi miyendo yakuda, sungakhoze kutulutsa zonse zoyera ndi zowala pamtunda womwewo pamene pulojekiti imagwiritsa ntchito gudumu la mtundu.
M'magetsi ambiri a DLP (makamaka popita kunyumba) kuwala koyera kumadutsa mu gudumu la mtundu lomwe liri ndi magulu Ofiira, Oyera, ndi Blue, omwe amachepetsa kuchuluka kwa kuwala komwe kumachokera kumapeto ena. Kumbali inayi, opanga DLP omwe amagwiritsa ntchito makina osagwiritsa ntchito magalasi (monga LED kapena Laser / LED Zozizwitsa zowunikira magetsi kapena mafano 3-chipangizo) akhoza kupanga msinkhu womwewo woyera ndi mtundu wopangidwa. Kuti mudziwe zambiri, werengani nkhani yathu yoyamba: Video Projectors ndi Color Brightness
Kuipa kwa 3LCD / LCOS
Pulojekiti ya LCD nthawi zambiri imawonetsa chomwe chimatchedwa "chitseko chowonekera". Popeza pulojekitiyi ili ndi mapepala amodzi, ma pixel akhoza kuwoneka pawindo lalikulu, motero amaoneka ngati akuwona chithunzi kudzera "pakhomo lazithunzi".
Chifukwa cha ichi ndi chakuti ma pixel akulekanitsidwa ndi malire akuda (osayatsa). Pamene mukulitsa kukula kwa chithunzi chomwe chikugwiritsidwa ntchito (kapena kuchepetsani chigamulochi pawindo lofanana) mawonekedwe a pixel aliwonse amatha kuwoneka, motero amawoneka ngati akuwona chithunzi kudzera "pakhomo". Pochotsa zotsatirazi, opanga amagwiritsa ntchito matekinoloje osiyanasiyana kuti achepetse kuwonekera kwa malire a pixel omwe sagwirizana.
Kumbali ina, chifukwa chowonera mavidiyo omwe ali ndi LCD omwe ali ndi mphamvu zowonetsera ( 1080p kapena apamwamba ), zotsatirazi sizimawoneke chifukwa pixelini ndizochepa ndipo malire akuchepa, pokhapokha mutakhala pafupi kwambiri ndi chinsalu, ndi chithunzi ndi chachikulu kwambiri.
Nkhani ina yomwe ingabwere (ngakhale kuti kawirikawiri) ndi kupsyinjika kwa Pixel. Popeza chipangizo cha LCD chimapangidwa ndi mapepala amodzi, ngati pixel imodzi ikuwotcha imasonyeza chodetsa chakuda chakuda kapena choyera choyera pa chithunzi chofotokozedwa. Ma pixel a munthu sangathe kukonzedwa, ngati imodzi kapena pixel yambiri ikutha, chip chipangizocho chiyenera kusinthidwa.
Mfundo Yofunika Kwambiri
Mafilimu opangira ma TV omwe ali ndi LCD amapezeka, amakhala okwera mtengo, ndipo amagwiritsidwa ntchito zosiyanasiyana, kuchokera ku bizinesi ndi maphunziro kupita ku zisudzo, masewera, ndi zosangalatsa zapanyumba.
Zitsanzo za zowonetsera mavidiyo a LCD kunyumba ya zisudzo zikuphatikizapo:
- Epson Home Cinema 2045 3LCD Video Projector - Pezani ku Amazon
- Sony VPL-HW45ES SXRD Video Projector - Pezani ku Amazon
Kuti mupeze zitsanzo zina, onani ndandanda yathu ya:
- Mafilimu Opanga Mavidiyo Opanda Phindu (akuphatikizapo mitundu yonse ya DLP ndi LCD).
- Makina Opanga Mavidiyo a 1080p ndi 4K (akuphatikizapo mitundu yonse ya DLP ndi LCD).