Fuskokin TFT LCD ɗaya ne daga cikin fasahar nuni da ake amfani da su a cikin na'urorin lantarki a halin yanzu.Yana samun nunin hoto mai inganci ta ƙara transistor-fim na bakin ciki (TFT) zuwa kowane pixel.A kasuwa, akwai nau'ikan fuska na TFT LCD, kowannensu yana da halaye na musamman da fa'idodinsa.Wannan labarin zai gabatar da nau'in VA, nau'in MVA, nau'in PVA, nau'in IPS da nau'in LCD na TN, kuma ya bayyana sigogin su bi da bi.
Nau'in VA (A tsaye alignment) fasaha ce ta TFT LCD gama gari.Wannan nau'in allo yana ɗaukar tsarin kwayoyin kristal ruwa wanda aka tsara shi a tsaye, kuma ana sarrafa matakin watsa haske ta hanyar daidaita yanayin ƙwayoyin kristal na ruwa.Fuskokin VA suna da babban bambanci da jikewar launi, masu iya baƙar fata mai zurfi da launuka na gaskiya.Bugu da ƙari, allon VA yana da babban kusurwar kallo, wanda har yanzu zai iya kula da daidaiton ingancin hoto idan aka duba shi daga kusurwoyi daban-daban.16.7M launuka (8bit panel) da kuma in mun gwada da girma view kwana su ne mafi bayyanannen fasaha halaye.Yanzu nau'in nau'in VA an kasu kashi biyu: MVA da PVA.
Nau'in MVA (Adaidaita Tsaye-Multi-yanki) ingantaccen sigar nau'in VA ne.Wannan tsarin allo yana samun ingantacciyar ingancin hoto da saurin amsawa ta hanyar ƙara ƙarin na'urorin lantarki zuwa pixels.Yana amfani da protrusions don sanya kristal ruwa ya zama madaidaiciyar gargajiya lokacin da yake har yanzu, amma yana tsaye a wani kusurwa;lokacin da aka yi amfani da wutar lantarki akansa, za a iya canza ƙwayoyin kristal ruwa da sauri zuwa yanayin kwance don ba da damar hasken baya ya wuce cikin sauƙi.Gudun sauri na iya rage lokacin nuni sosai, kuma saboda wannan fitowar ta canza daidaitawar kwayoyin kristal na ruwa, ta yadda kusurwar kallo ta fi fadi.Haɓakawa a kusurwar kallo na iya kaiwa sama da 160°, kuma ana iya taƙaita lokacin amsawa zuwa ƙasa da 20ms.Allon MVA yana da bambanci mafi girma, faɗin kusurwar kallo da saurin sauyawa pixel.Bugu da ƙari, allon MVA kuma zai iya rage sauye-sauyen launi da motsin motsi, yana samar da mafi haske da tasirin hoto.
Nau'in PVA (Tsarin Daidaita Tsaye) wani ingantaccen sigar nau'in VA ne.Wannan nau'in panel ne da Samsung ya ƙaddamar, wanda fasaha ce ta daidaita hoto a tsaye.Wannan fasaha na iya canza yanayin tsarin naúrar kristal ɗinta kai tsaye, ta yadda tasirin nuni zai iya inganta sosai, kuma fitowar haske da rabon bambanci na iya zama mafi kyau fiye da MVA..Bugu da ƙari, bisa ga waɗannan nau'o'in nau'i biyu, an haɓaka nau'ikan ingantattun nau'ikan: S-PVA da P-MVA nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan S-PVA da P-MVA sun haɓaka.The view kwana iya isa 170 digiri, da kuma mayar da martani lokaci Ana kuma sarrafa a cikin 20 millise seconds (overdrive hanzari iya isa 8ms GTG), da bambanci rabo iya sauƙi wuce 700:1.Fasaha ce mai girma wacce ke rage kwararar haske da watsewa ta hanyar ƙara kyawawan dabi'u masu ƙarfi zuwa Layer crystal na ruwa.Wannan fasaha na allo na iya samar da mafi girman rabon bambanci, faɗin kusurwar kallo da mafi kyawun aikin launi.Fuskokin PVA sun dace da al'amuran da ke buƙatar babban bambanci da launuka masu haske, irin su sarrafa hoto da wasan kwaikwayo.
Nau'in IPS (In-Plane Switching) wata fasahar allo ce ta TFT ta gama gari.Ba kamar nau'in VA ba, ƙwayoyin kristal na ruwa a cikin allon IPS suna daidaitawa a madaidaiciyar hanya, yana sauƙaƙa ga haske don wucewa ta Layer crystal na ruwa.Wannan fasaha na allo na iya samar da faɗuwar kusurwar kallo, ingantaccen haifuwar launi da haske mafi girma.Fuskokin IPS sun dace da aikace-aikacen da ke buƙatar faɗin kusurwar kallo da ma'anar launi na gaskiya, kamar na'urori kamar allunan da wayoyin hannu.
Nau'in TN (Twisted Nematic) shine fasahar allo na TFT ta gama gari da tattalin arziki.Irin wannan allon yana da tsari mai sauƙi da ƙananan farashin samarwa, don haka ana amfani da shi sosai a yawancin aikace-aikace.Koyaya, allon TN yana da kunkuntar kusurwoyin kallo da rashin aikin launi.Ya dace da wasu aikace-aikacen da ba sa buƙatar ingancin hoto, kamar na'urorin kwamfuta da wasannin bidiyo.
Baya ga gabatarwar nau'ikan allo na TFT LCD na sama, za a bayyana sigoginsu a ƙasa.
Na farko shi ne bambanci (Bambanta Ratio).Matsakaicin ma'auni shine ikon na'urar nuni don bambanta tsakanin baki da fari.Babban bambanci yana nufin allon zai iya nuna bambanci tsakanin baki da fari a fili.VA, MVA, da PVA nau'ikan fuska na LCD yawanci suna da ƙimar bambanci mafi girma, waɗanda ke ba da cikakkun bayanan hoto da launuka masu kama da rai.
Biye da kusurwar kallo (Kallon kallo).kusurwar kallo tana nufin kewayon kusurwoyi waɗanda za'a iya kiyaye daidaitattun ingancin hoto yayin kallon allo.IPS, VA, MVA, da PVA nau'ikan allo na LCD yawanci suna da manyan kusurwoyin kallo, suna ba masu amfani damar jin daɗin hotuna masu inganci idan aka duba su daga kusurwoyi daban-daban.
Wani ma'auni shine lokacin amsawa (Lokacin Amsa).Lokacin amsawa yana nufin lokacin da ake buƙata don ƙwayoyin kristal na ruwa don canzawa daga wannan jiha zuwa wata.Saurin amsawa yana nufin allon zai iya nuna daidaitattun hotuna masu motsi, rage blur motsi.MVA da nau'in LCD na nau'in PVA yawanci suna da lokacin amsawa cikin sauri kuma sun dace da al'amuran da ke buƙatar babban aikin hoto mai ƙarfi.
Na ƙarshe shine aikin launi (Launi Gamut).Ayyukan launi yana nufin kewayon launuka waɗanda na'urar nuni za ta iya bayarwa.IPS da PVA nau'ikan allo na LCD gabaɗaya suna da fa'ida na aikin launi kuma suna iya gabatar da ƙarin haske da launuka masu haske.
Don taƙaitawa, akwai nau'ikan fuska na TFT LCD da yawa a kasuwa, kuma kowane nau'in yana da halaye na musamman da fa'idodi.Nau'in VA, nau'in MVA, nau'in PVA, nau'in IPS, da nau'in nau'in LCD na TN sun bambanta da bambanci, kusurwar kallo, lokacin amsawa, da aikin launi.Lokacin zabar allo na LCD, masu amfani yakamata su zaɓi nau'in mafi dacewa gwargwadon buƙatun su da kasafin kuɗi.Ko don aikace-aikacen ƙwararru ko amfani da yau da kullun, fasahar allo na TFT LCD na iya samar da kyakkyawan ingancin hoto da ƙwarewar kallo.
Lokacin aikawa: Agusta-24-2023