TFT-LCD membrane canza launi
TFT-LCD membrane canza launi
Siffofin
LCD ya maye gurbin CRT a matsayin al'ada, kuma farashin ya ragu da yawa, kuma ya zama sananne sosai.
Dangane da hanyoyin hasken baya daban-daban, ana iya raba LCD zuwa iri biyu: CCFL da LED.
Rashin fahimta:
Yawancin masu amfani sun yi imanin cewa za a iya raba nunin kristal ruwa zuwa LEDs da LCDs.Har zuwa wani lokaci, wannan fahimta ta ɓace ta tallace-tallace.
Nunin LED akan kasuwa ba nunin LED bane na gaskiya.Don zama madaidaici, nunin kristal ruwa ne mai haske na LED.Ruwan crystal panel har yanzu nunin LCD ne na gargajiya.A wata ma'ana, wannan ɗan zamba ne.yanayi!Kungiyar Tallace-tallace ta Burtaniya ta taba samun kamfanin Samsung na Koriya ta Kudu da laifin karya dokokin tallan kasar saboda ana zarginsa da “LEDTV” LCD TVs da yaudarar masu amfani da shi.Don nunin kristal na ruwa, maɓalli mafi mahimmanci shine allon LCD da nau'in hasken baya, yayin da bangarorin nunin LCD a kasuwa gabaɗaya suna amfani da bangarorin TFT, waɗanda iri ɗaya ne.Bambanci tsakanin LEDs da LCDs shine nau'ikan hasken bayansu sun bambanta: LED Hasken baya da CCFL backlight (wato, fitulun kyalli) diodes ne da fitilun cathode masu sanyi, bi da bi.
LCD shine gajartawar nunin kristal Liquid, wanda ke nufin "launi mai kristal", wato nunin crystal ruwa.LED ɗin yana nufin wani nau'in nunin kristal na ruwa (LCD), wato, nunin faifan ruwa mai kristal (LCD) tare da LED (haske diode) azaman tushen hasken baya.Ana iya ganin cewa LCD ya haɗa da LEDs.Takwaransa na LED shine ainihin CCFL.
CCFL
Yana nufin nunin kristal mai ruwa (LCD) tare da CCFL (launi mai kyalli na sanyi) azaman tushen hasken baya.
Amfanin CCFL shine kyakkyawan aikin launi, amma rashin amfani shine mafi girman amfani da wutar lantarki.
LED
Yana nufin nunin kristal mai ruwa (LCD) wanda ke amfani da LEDs (diodes masu fitar da haske) azaman tushen hasken baya, kuma gabaɗaya yana nufin WLEDs (LEDs masu haske).
Abubuwan da ke cikin LED sune ƙananan girman da ƙarancin wutar lantarki.Sabili da haka, yin amfani da LED azaman tushen hasken baya na iya samun haske mai girma yayin la'akari da haske da bakin ciki.Babban hasara shine aikin launi ya fi na CCFL muni, don haka yawancin ƙwararrun zane-zane LCDs har yanzu suna amfani da CCFL na gargajiya azaman tushen hasken baya.
Ma'aunin Fasaha
Maras tsada
Gabaɗaya magana, rage farashi ya zama muhimmiyar doka ga kamfanoni don tsira.A cikin tarihin ci gaba na TFT-LCD, ba shi da wahala a gano cewa haɓaka girman gilashin gilashi, rage adadin masks, haɓaka yawan aikin tashar tushe da yawan amfanin ƙasa, da siyan albarkatun ƙasa a kusa shine ci gaba da ƙoƙarin TFT-da yawa. LCD masana'antun..
Gilashi substrate wani muhimmin albarkatun kasa don samar da TFT-LCD, kuma farashin sa ya kai kusan 15% zuwa 18% na jimlar farashin TFT-LCD.Ya haɓaka daga layin ƙarni na farko (300mm × 400mm) zuwa layin ƙarni na yanzu (2,850mm × 3,050).mm), ya wuce cikin ɗan gajeren lokaci na shekaru ashirin.Duk da haka, saboda musamman high bukatun ga sinadaran abun da ke ciki, yi da kuma samar da yanayin tsari na TFT-LCD gilashin substrates, da duniya TFT-LCD gilashin substrate samar da fasaha da kasuwa da aka dade amfani da Corning a Amurka, Asahi Glass da kuma Gilashin Wutar Lantarki, da sauransu. Wasu kamfanoni kaɗan ne suka mamaye su.A karkashin karfi da gabatarwa na kasuwa ci gaban, babban ƙasar na kuma fara rayayye shiga cikin R & D da kuma samar da TFT-LCD gilashin substrates a 2007. A halin yanzu, da dama TFT-LCD gilashin substrate samar Lines na biyar tsara da kuma samar da gilashin substrates. a sama an gina su a China.An shirya kaddamar da biyu 8.5-tsara high-tsara ruwa crystal gilashin samar line ayyukan a cikin rabin na biyu na 2011.
Wannan yana ba da garanti mai mahimmanci don gano albarkatun ƙasa na sama don masana'antun TFT-LCD a cikin ƙasata da kuma raguwar farashin masana'anta.
Mafi mahimmancin ɓangaren fasaha na samar da TFT shine tsarin photolithography, wanda ba kawai wani muhimmin ɓangare na ƙayyade ingancin samfurin ba, amma har ma wani muhimmin sashi wanda ke rinjayar farashin samfurin.A cikin tsarin photolithography, an biya mafi yawan hankali ga abin rufe fuska.Ingancin sa yana ƙayyade ingancin TFT-LCD zuwa babban matsayi, kuma rage yawan amfani da shi zai iya rage yawan saka hannun jari na kayan aiki da rage yawan aikin samarwa.Tare da canjin tsarin TFT da ingantaccen tsarin samarwa, adadin masks da aka yi amfani da su a cikin tsarin masana'anta daidai yake da raguwa.Ana iya ganin cewa tsarin samar da TFT ya samo asali ne daga farkon 8-mask ko 7-mask lithography zuwa tsarin 5-mask ko 4-mask lithography wanda aka saba amfani dashi a halin yanzu, wanda ya rage girman tsarin samar da TFT-LCD da farashin samarwa. .
4 Tsarin lithography na abin rufe fuska ya zama na yau da kullun a cikin masana'antar.Domin a ci gaba da rage farashin samarwa, mutane sun yi ƙoƙarin gano yadda za a ƙara rage yawan abin rufe fuska da ake amfani da su a cikin aikin hoto.A cikin 'yan shekarun nan, wasu kamfanonin Koriya sun sami ci gaba a cikin ci gaban tsarin lithography na 3-mask, kuma sun ba da sanarwar samar da taro.Duk da haka, saboda ƙwarewar fasaha na tsarin 3-mask da ƙananan yawan amfanin ƙasa, har yanzu ana samun ci gaba.Ƙarƙashin haɓakawa da haɓakawa.Daga hangen nesa na ci gaba na dogon lokaci, idan fasahar bugawa ta Inkjet (inkjet) ta sami ci gaba, fahimtar masana'antar da ba ta da abin rufe fuska shine babban burin da mutane ke bi.
