Ukuhlaziywa Kwesikhathi esizayo kwe-Quantum Dot TV Technology
Ngokuthuthukiswa kobuchwepheshe bokubonisa, imboni ye-TFT-LCD, eye yabusa imboni yokubonisa amashumi eminyaka, ibe nenselele enkulu.I-OLED ingene ekukhiqizweni ngobuningi futhi iye yamukelwa kabanzi emkhakheni wama-smartphones.Ubuchwepheshe obusafufusa obufana ne-MicroLED ne-QDLED nabo busebenza ngokugcwele.Uguquko lwemboni ye-TFT-LCD seluphenduke umkhuba ongenakuhlehliswa Ngaphansi kwe-OLED ephezulu-contrast (CR) enolaka nezici ze-gamut ezinombala obanzi, imboni ye-TFT-LCD igxile ekuthuthukiseni izici ze-LCD color gamut futhi yaphakamisa umqondo we "quantum". dot TV."Nokho, lokho okubizwa ngokuthi "ama-quantum-dot TVs" awasebenzisi ama-QD ukuze abonise ngokuqondile ama-QDLED.Esikhundleni salokho, bangeza kuphela ifilimu ye-QD ekukhanyeni okuvamile kwe-TFT-LCD.Umsebenzi wale filimu ye-QD ukuguqula ingxenye yokukhanya okuluhlaza okwesibhakabhaka okukhishwa i-backlight ibe ukukhanya okuluhlaza nokubomvu okunokusabalalisa kwe-wavelength emincane, okulingana nomphumela ofanayo ne-phosphor evamile.
Ukukhanya okuluhlaza nokubomvu okuguqulelwe ifilimu ye-QD kunokusabalalisa kwamaza amaza futhi kungafaniswa kahle nebhendi yokudlulisa ukukhanya okuphakeme kwe-CF ye-LCD, ukuze ukulahlekelwa ukukhanya kuncishiswe futhi kuthuthukiswe ukusebenza kahle kokukhanya okuthile.Ngaphezu kwalokho, njengoba ukusatshalaliswa kwe-wavelength kuncane kakhulu, ukukhanya kwe-RGB monochromatic nokuhlanzeka kombala okuphezulu (ukugcwala) kungabonakala, ngakho umbala we-gamut ungaba mkhulu Ngakho-ke, ukuphumelela kwezobuchwepheshe kwe-"QD TV" akuphazamisi.Ngenxa yokuqaphela ukuguqulwa kwe-fluorescence nge-bandwidth encane ye-luminescent, ama-phosphors avamile nawo angabonakala.Isibonelo, i-KSF:Mn inketho ye-phosphor enezindleko eziphansi, emincane yomkhawulokudonsa.Nakuba i-KSF:Mn ibhekene nezinkinga zokuzinza, ukuzinza kwe-QD kubi kakhulu kunalokho kwe-KSF:Mn.
Ukuthola ifilimu ye-QD enokwethenjelwa kakhulu akulula.Ngenxa yokuthi i-QD itholakala emanzini nomoya-mpilo endaweni esemoyeni, icisha ngokushesha futhi ukusebenza kahle okukhanyayo kwehla kakhulu.Isixazululo sefilimu ye-QD esivikela amanzi nesivikela komoya-mpilo, esamukelwa kabanzi njengamanje, siwukuxuba i-QD kusinamathisele kuqala, bese uhlanganisa ingcina phakathi kwezingqimba ezimbili zamafilimu epulasitiki angangenwa amanzi kanye ne-oxygen ukuze yakha isakhiwo "sesandwich".Lesi sixazululo sefilimu esincane sinogqinsi oluncane futhi siseduze ne-BEF yasekuqaleni nezinye izici zefilimu ye-optical ye-backlight, eyenza ukukhiqizwa nokuhlanganisa.
Eqinisweni, i-QD, njengento entsha ekhanyayo, ingasetshenziswa njenge-photoluminescent fluorescent conversion material futhi ingafakwa ugesi ngokuqondile ukuze ikhiphe ukukhanya.Ukusetshenziswa kwendawo yokubonisa kungaphezulu kakhulu kwendlela yefilimu ye-QDNgokwesibonelo, i-QD ingasetshenziswa ku-MicroLED njengongqimba oluguquguqukayo lwe-fluorescence ukuze kuguqulwe ukukhanya okuluhlaza okwesibhakabhaka noma ukukhanya oku-violet okukhishwa ku-chip ye-ULED kube ukukhanya kwe-monochromatic kwamanye amaza obude.Njengoba usayizi we-uLED usuka kuma-micrometer ayishumi nambili kuya emashumini ambalwa wama-micrometer, futhi usayizi wezinhlayiya ezivamile ze-phosphor ubuncane be-micrometer eyishumi nambili, usayizi wezinhlayiyana ze-phosphor evamile useduze nosayizi we-chip eyodwa ye-uLED. futhi ayikwazi ukusetshenziswa njengokuguqulwa kwe-fluorescence ye-MicroLED.impahla.I-QD ukuphela kwenketho yezinto eziguqulwayo zombala we-fluorescent okwamanje ezisetshenziselwa ukufaka imibala kuma-MicroLED.
Ngaphezu kwalokho, i-CF kuseli ye-LCD ngokwayo isebenza njengesihlungi futhi isebenzisa izinto ezimunca ukukhanya.Uma into yokuqala emunca ukukhanya ithathelwa indawo ngokuqondile nge-QD, iseli elizikhanyisayo le-QD-CF LCD lingabonakala, kanye nokusebenza kahle kokubona kwe-TFT-LCD kungathuthukiswa kakhulu ngenkathi kuzuzwa i-gamut yombala obanzi.
Kafushane, amachashazi e-quantum (QDs) anethuba elibanzi kakhulu lohlelo lokusebenza endaweni yesibonisi.Okwamanje, lokho okubizwa ngokuthi "i-quantum-dot TV" yengeza ifilimu ye-QD emthonjeni we-backlight we-TFT-LCD ovamile, okuwukuthuthukiswa kwama-TV we-LCD futhi ongakazisebenzisi ngokugcwele izinzuzo ze-QD.Ngokwesibikezelo sesikhungo socwaningo, ubuchwepheshe bokuboniswa kwe-gamut yombala okhanyayo buzokwakha isimo lapho amamaki aphezulu, aphakathi nendawo naphansi kanye nezinhlobo ezintathu zezixazululo zizoba khona eminyakeni ezayo.Emikhiqizweni yebanga eliphakathi neliphansi, i-phosphors nefilimu ye-QD yakha ubudlelwano bokuncintisana.Emikhiqizweni esezingeni eliphezulu, i-QD-CF LCD, iMicroLED ne-QDLED izoqhudelana ne-OLED.