Ukuthenga i- TV entsha kuyindaba engathà sina, ngakho-ke kuyadingeka ukuyiphatha ngayo yonke imithwalo yemfanelo kanye nolwazi. Ochwepheshe batusa ukuhlola i-TV ngamaphikseli aphukile kanye nomthengisi-umthengisi nakanjani.
Iyini i-pixel ku-TV?
I-matrix yesamukeli se-TV iyinani elikhulu lamaseli amancane kakhulu. Lena amaphikseli. Ikhwalithi yesithombe incike kwinombolo yamaphikseli: ngaphezulu kwabo, isithombe esicacile. I-pixel ngayinye ye-TV yombala, nayo, iqukethe ama-subpixels: obomvu, okwesibhakabhaka nohlaza.
Iseli elingaphenduki ekuguquleni isignali yisici, esibizwa ngokuthi "i-pixel ephukile". Ibonakala ngesimo samaphuzu wombala ofanayo, okweba isithombe esiboniswe esikrinini. Kukhona izinhlobo ezilandelayo zokuphulwa kwamaphikseli:
- i-pixel emhlophe - iphuzu elivuthayo;
- i-pixel emnyama - iseli elingasebenzi;
- amaphikseli abomvu, aluhlaza noma aluhlaza okwesibhakabhaka - iphutha le-subpixel;
- ukuba khona ngesikhathi esisodwa kwamaphutha amabili noma amathathu.
Ungahlola kanjani amaphikseli ku-TV?
Ukuhlola amaphikseli ku-TV yisigaba esinzima kunazo zonke ekuhloleni idivayisi ngaphambi kokuthenga. Indlela elula yokuqinisekisa iwukuhlola isibuko uma kunoma yimuphi umbala uboniswa kuso. Ukuze uthole amachashazi amnyama, kufanele uhambise ibhokisi elimhlophe. Ngakho, ukuthola amaphuzu amhlophe, kuyasetshenziswa insimu emnyama. Ukucinga amaphutha we-subpixel (amaphuzu ombala), umbala wesibuko ushintsha ngokuhlukile. Ekuhlolisweni okusheshayo, ngisho nangamehlo angaboni, kungenzeka ukubona ukukhubazeka, kodwa kungcono ukusebenzisa i-glass magnifying ukwenza inqubo yokuhlola yamaphikseli aphukile ngokwengeziwe.
Ezinhlobonhlobo zamasethingi zanamuhla zakhiwe emisebenzini yemenyu yokuhlola i-TV ngamaphikseli aphukile. Uma ivuliwe, isikrini isikhathi esithile sinemibala enemibala efanayo, okwenza kube lula ukubona iphikseli engalungile. Uma ngabe umsebenzi onjalo ungahlinzekiwe, khona-ke ezitolo ezikhethekile kukhona ama-generator akhethekile abanika amasimu amnyama, amhlophe nembala ku-screen TV, nezinhlelo zokuhlola. Isibonelo, i-Nokia Monitor Test yenza kube lula ukuhlola amaphikseli aphukile, izindawo zokukhanya (izindawo ezikhanyayo) nezinye izinkinga eziningi.
I-pixel ephukile ku-TV: isiqinisekiso
Ngeshwa, ukunikezela noma ukushintshanisa i-TV nge-pixel ephukile ngokuvamile akunakwenzeka. Iqiniso liwukuthi ngokwemigomo ekhona yamazwe omhlaba, kubuchwepheshe beklasi ngalinye, inani eliphezulu elivumelekile lamaphikseli anomfutho linikeziwe. Ngakho, ngokuhambisana namazinga, kuphela kulabo abamukela amathelevishini bokuqala amaphutha we-pixel awavunyelwe. Inqubo yesigaba sesibili nesine ingaphansi kokushintshaniswa kuphela uma umgwamanda osungulwe wokuvuma ungadluli.
Ukwelashwa kwamaphikseli aphukile ku-TV
Ngokuvamile, abasebenzisi be-tekhnoloji yethelevishini, abasesimweni sokuyisebenzisa, bathola ukuthi i-pixel embi ivele ku-TV. Ngifuna nje ukukuxwayisa ukuthi akunakwenzeka ukukhipha amaphuzu amnyama kuwe. Kodwa ama-pixel aphukile anemibala angaqedwa eyedwa. Kunezindlela ezimbili:
- Ukumisa indawo engalungile. Ngokuba "ukusikhipha" i-swab ikotini kufanelekile.
Kudingeka ukuthi unqume ngokunembile indawo yamaphikseli aphukile, cisha i-TV bese ucindezela kule ndawo isikhathi eside. Phinda inqubo izikhathi eziningana. - Ukushisa kwekhwalithi. Ukwelashwa kwenziwa ngokusebenzisa izinhlelo ezikhethekile ukususa amaphikseli anamathele angatholakala kwi-intanethi. Indlela yesibili inikeza amathuba amaningi "wokuphulukisa" isikrini, ngaphandle kwalokho kuphephile kakhulu kudivayisi. Abathuthukisi be-utility bathi ukukhubazeka kungaqedwa ngamaminithi amaningi emininingwana yohlelo.
Kukhona nezinye izinkinga zeTV.