Menene bambanci tsakanin anLCD projectorkuma aDLP projector?Menene ka'idar tsinkayar LCD da tsinkayar DLP?
LCD (gajeren nunin Liquid Crystal Nuni) nunin kristal ruwa.
Da farko, menene LCD?Mun san cewa kwayoyin halitta suna da jihohi uku: kasa mai ƙarfi, yanayin ruwa, da yanayin gas.Ko da yake tsarin tsakiyar taro na ruwa kwayoyin ba shi da wani akai-akai, idan wadannan kwayoyin suna elongated (ko lebur), su kwayoyin fuskantarwa na iya zama na yau da kullum jima'i.Don haka zamu iya raba yanayin ruwa zuwa nau'ikan iri da yawa.Liquid tare da tsarin tsarin kwayoyin da ba na ka'ida ba ana kiransa ruwa kai tsaye, yayin da ruwa mai dauke da kwayoyin kwatance ana kiransa "ruwan lu'ulu'u", kuma ana kiransa "lu'ulu'u na ruwa".Kayayyakin kristal na ruwa a zahiri ba baƙo bane a gare mu.Wayoyin hannu da na'urori masu ƙididdigewa da muke gani sau da yawa duk samfuran lu'ulu'u ne.Liquid crystal an gano shi ta hanyar ɗan ilimin botanist ɗan ƙasar Austriya Reinitzer a cikin 1888. Yana da mahaɗin halitta tare da tsarin kwayoyin halitta na yau da kullun tsakanin ƙarfi da ruwa.Ka'idar nunin kristal ruwa shine cewa kristal na ruwa zai nuna halayen haske daban-daban a ƙarƙashin aikin ƙarfin lantarki daban-daban.Ƙarƙashin aikin wutar lantarki daban-daban da filayen lantarki, za a shirya kwayoyin crystal na ruwa a cikin juyawa na yau da kullum na digiri 90, wanda zai haifar da bambanci a cikin watsa haske, ta yadda za a haifar da bambanci tsakanin haske da duhu a ƙarƙashin ikon ON / KASHE, kuma kowane pixel ana iya sarrafa shi bisa ga wannan ka'ida don samar da hoton da ake so.
LCD Liquid crystal projector shine samfurin haɗin fasahar nunin ruwa crystal da fasahar tsinkaya.Yana amfani da electro- Tantancewar sakamako na ruwa crystal don sarrafa watsawa da kuma reflectivity na ruwa crystal naúrar ta da'irar, don samar da hotuna da daban-daban matakan toka.Babban aikin majigi na LCD shine Na'urar daukar hoto shine panel na ruwa crystal.
Ka'ida
Ka'idar LCD guda ɗaya abu ne mai sauqi qwarai, wato yin amfani da tushen hasken wuta mai ƙarfi don batar da panel LCD ta hanyar ruwan tabarau.Tun da allon LCD yana watsa haske, hoton zai haskaka, kuma za a samar da hoton akan allon ta madubi mai mayar da hankali na gaba da ruwan tabarau.
3LCD yana lalata hasken da kwan fitila ke fitarwa zuwa launuka uku na R (ja), G (kore), da B (blue), kuma yana sanya su ratsa ta cikin faifan kristal na ruwa daban-daban don ba su siffofi da ayyuka.Tun da waɗannan launuka na farko guda uku ana yin su akai-akai, ana iya amfani da haske yadda ya kamata, yana haifar da hotuna masu haske da haske.Majigi na 3LCD yana da halaye na hotuna masu haske, na halitta da taushi.
Amfani:
① Dangane da launi na allo, na yau da kullun na LCD na yau da kullun duk injinan guntu guda uku ne, ta amfani da bangarorin LCD masu zaman kansu don launuka na farko guda uku na ja, kore, da shuɗi.Wannan yana ba da damar haske da bambanci na kowane tashar launi don daidaitawa daban-daban, kuma tsinkaya yana da kyau sosai, yana haifar da manyan launuka masu aminci.(Majigilar DLP masu daraja iri ɗaya kawai za su iya amfani da yanki ɗaya na DLP, wanda galibi an ƙaddara shi ta hanyar halayen zahiri na dabarar launi da zafin launi na fitila. Amma tare da sautunan ƙararrawa iri ɗaya har yanzu ba a rasa su a gefuna na hoton idan aka kwatanta da na'urorin LCD masu tsada.)
② Amfani na biyu na LCD shine ingancin haskensa mai girma.Masu hasashe LCD suna da mafi girman fitowar haske na ANSI lumen fiye da na'urorin DLP masu fitilun wuta iri ɗaya.
Ragewa:
① Ayyukan matakin baƙar fata ba su da kyau sosai, kuma bambancin ba shi da yawa.Baƙaƙe daga na'urori na LCD koyaushe suna kallon ƙura, tare da inuwa suna bayyana duhu da cikakken bayani.
② Hoton da na'urar ta LCD ta samar zai iya ganin tsarin pixel, kuma kamanni da jin ba su da kyau.(Masu kallo da alama suna kallon hoton ta cikin tebur)
DLP Projector
DLP shine gajartawar "Masu sarrafa Hasken Dijital", wato sarrafa hasken dijital.Wannan fasaha ta farko tana sarrafa siginar hoto ta hanyar lambobi, sannan tana aiwatar da hasken.Ya dogara ne akan sashin micromirror na dijital wanda TI (Texas Instruments) ya haɓaka - DMD (Digital Micromirror Device) don kammala fasahar nunin bayanan dijital na gani.Na'urar micromirror dijital ta DMD wani yanki ne na semiconductor na musamman wanda Texas Instruments ke samarwa da haɓakawa.Guntuwar DMD ta ƙunshi ƙananan madubin murabba'i masu yawa.Kowane micromirror a cikin waɗannan madubin yana wakiltar pixel.Yankin pixel yana da 16μm × 16, kuma ruwan tabarau an tsara su sosai a cikin layuka da ginshiƙai, kuma ana iya canzawa da juya su a cikin jihohi biyu na kunnawa ko kashe ta hanyar sarrafa ƙwaƙwalwar ajiya daidai, don sarrafa hasken haske.Ka'idar DLP ita ce wuce tushen hasken da hasken ke fitarwa ta hanyar ruwan tabarau mai ɗaukar hoto don daidaita hasken, sannan a wuce dabaran launi (Launi mai launi) don raba hasken zuwa launuka uku RGB (ko fiye da launuka), sannan aiwatarwa. launi a kan DMD ta ruwan tabarau, kuma a ƙarshe an tsara shi zuwa hoto ta hanyar ruwan tabarau mai tsinkaya.
Ka'ida
Dangane da adadin micromirrors na dijital na DMD da ke ƙunshe a cikin na'urar ta DLP, mutane suna raba na'urar zuwa majigin DLP mai guntu guda ɗaya, majigi DLP mai guntu biyu da na'urar DLP mai guntu uku.
A cikin tsarin tsinkayar DMD mai guntu guda ɗaya, ana buƙatar dabaran launi don samar da cikakken hoto mai launi.Dabarar launi ta ƙunshi tsarin tace ja, kore, da shuɗi, wanda ke juyawa a mitar 60Hz.A cikin wannan saitin, DLP yana aiki a yanayin launi na jeri.Ana canza siginar shigarwa zuwa bayanan RGB, kuma ana rubuta bayanan cikin SRAM na DMD a jere.Madogarar hasken farin yana mai da hankali kan dabaran launi ta hanyar ruwan tabarau mai kulawa, kuma hasken da ke wucewa ta cikin dabaran launi ana yin hoto akan saman DMD.Lokacin da dabaran launi ke juyawa, ja, kore, da shuɗi haske ana harbi a jere akan DMD.Dabarar launi da hoton bidiyo suna jere ne, don haka lokacin da jajayen haske ya faɗo DMD, ruwan tabarau yana karkatar da "akan" a cikin matsayi da ƙarfin da ya kamata bayanin ja ya kamata ya nuna, haka kuma yana tafiya ga haske kore da shuɗi da siginar bidiyo. .Saboda tsayin daka na tasirin hangen nesa, tsarin gani na ɗan adam yana mai da hankali ga bayanin ja, kore, da shuɗi kuma yana ganin cikakken hoto.Ta hanyar ruwan tabarau na tsinkaya, hoton da aka kafa akan farfajiyar DMD za a iya hasashe akan babban allo.
Majigi na DLP mai guntu guda ɗaya ya ƙunshi guntu DMD guda ɗaya kawai.Wannan guntu an tsara shi sosai tare da ƙananan ruwan tabarau masu nunin murabba'i da yawa akan kumburin lantarki na guntun silicon.Kowane ruwan tabarau mai haske anan yayi daidai da pixel na hoton da aka ƙirƙira, don haka Idan guntu micromirror DMD na dijital ya ƙunshi ƙarin ruwan tabarau masu haske, mafi girman ƙudurin jiki wanda injin DLP mai dacewa da guntu DMD zai iya cimma.
Amfani:
Fasahar majigi na DLP fasaha ce ta hasashe.Aikace-aikacen na'urorin DMD masu haskakawa, na'urori na DLP suna da fa'idodin tunani, mafi kyawun bambanci da daidaituwa, babban ma'anar hoto, hoto iri ɗaya, launi mai kaifi, da hayaniya ta ɓace, ingancin hoto, ingantaccen hotuna na dijital za a iya ci gaba da haifar da su, kuma na ƙarshe. har abada.Tunda na'urori na DLP na yau da kullun suna amfani da guntu DMD, mafi kyawun fa'ida shine cewa suna da ƙarfi, kuma ana iya sanya na'urar ta ƙarami sosai.Wani fa'ida na na'urori na DLP shine hotuna masu santsi da babban bambanci.Tare da babban bambanci, tasirin gani na hoto yana da ƙarfi, babu ma'anar tsarin pixel, kuma hoton yana da dabi'a.
Ragewa:
Abu mafi mahimmanci shine idanuwan bakan gizo, saboda na'urori na DLP suna aiwatar da launuka na farko daban-daban akan allon tsinkaya ta hanyar launi, kuma mutanen da ke da idanu masu hankali za su ga launi mai kama da bakan gizo-kamar halo.Abu na biyu, ya dogara da ingancin DMD, ikon daidaita launi da saurin juyawa na dabaran launi.
Lokacin aikawa: Afrilu-07-2023
