Ukushintsha kwe-membrane ye-TFT-LCD
Ukushintsha kwe-membrane ye-TFT-LCD
Izici
I-LCD ithathe indawo ye-CRT njengejwayelekile, futhi intengo yehle kakhulu, futhi isidume ngokugcwele.
Ngokusho kwemithombo ehlukene yokukhanya kwe-backlight, i-LCD ingahlukaniswa ngezinhlobo ezimbili: i-CCFL ne-LED.
Ukungaqondi:
Abasebenzisi abaningi bakholelwa ukuthi izibonisi zekristalu eziwuketshezi zingahlukaniswa ngama-LED nama-LCD.Ngokwezinga elithile, lokhu kuqonda kudukiswa yizikhangiso.
Isibonisi se-LED emakethe akusona isibonisi se-LED sangempela.Ukunemba, isibonisi se-LED-backlit liquid crystal.Iphaneli yekristalu ewuketshezi iseyisibonisi se-LCD sendabuko.Ngomqondo othile, lokhu kuwukukhwabanisa ngandlela-thile.imvelo!Inkampani yakwaSamsung yaseSouth Korea yake yagwetshwa yiBritish Advertising Association ngokuphula imithetho yezokukhangisa yezwe ngoba amaTV awo “LEDTV” LCD TV ayesolwa ngokudukisa abathengi.Ngokuboniswa kwe-liquid crystal, ukhiye obaluleke kakhulu iphaneli yayo ye-LCD kanye nohlobo lokukhanya kwangemuva, kuyilapho amaphaneli e-LCD okubonisa emakethe ngokuvamile asebenzisa amaphaneli e-TFT, afanayo.Umehluko phakathi kwama-LED nama-LCDs ukuthi izinhlobo zawo zokukhanya kwangemuva zihlukile: I-LED I-backlight ne-CCFL backlight (okungukuthi, izibani ze-fluorescent) zingama-diode nezibani ezibandayo ze-cathode, ngokulandelanayo.
I-LCD isifinyezo se-Liquid Crystal Display, okusho ukuthi "i-liquid crystal display", okungukuthi, isibonisi sekristalu esiwuketshezi.I-LED isho uhlobo lwe-liquid crystal display (LCD), okungukuthi, i-liquid crystal display (LCD) ene-LED (light emitting diode) njengomthombo wokukhanya kwangemuva.Kuyabonakala ukuthi i-LCD ihlanganisa nama-LED.Uzakwabo we-LED empeleni yi-CCFL.
I-CCFL
Ibhekisela ku-liquid crystal display (LCD) ene-CCFL (isibani esibandayo se-cathode fluorescent) njengomthombo wokukhanya kwangemuva.
Inzuzo ye-CCFL ukusebenza kahle kombala, kodwa okubi ukusetshenziswa kwamandla okuphezulu.
I-LED
Isho i-liquid crystal display (LCD) esebenzisa ama-LED (light emitting diode) njengomthombo wokukhanya kwangemuva, futhi ngokuvamile ibhekisela kuma-WLED (ama-LED akhanyayo).
Izinzuzo ze-LED ubukhulu obuncane kanye nokusetshenziswa kwamandla okuphansi.Ngakho-ke, ukusebenzisa i-LED njengomthombo we-backlight kungafinyelela ukukhanya okuphezulu ngenkathi kucatshangelwa ukukhanya nokuncane.Ububi obuyinhloko ukuthi ukusebenza kombala kubi kakhulu kunokwe-CCFL, ngakho-ke ama-LCD amaningi wezithombe ezichwepheshile asasebenzisa i-CCFL yendabuko njengomthombo wokukhanya kwangemuva.
Imingcele Yezobuchwepheshe
Izindleko eziphansi
Ngokuvamile, ukwehlisa izindleko sekuwumthetho obalulekile ukuze izinkampani ziphile.Kuwo wonke umlando wokuthuthukiswa kwe-TFT-LCD, akunzima ukuthola ukuthi ukwandisa usayizi wama-substrates engilazi, ukunciphisa inani lemaski, ukwandisa ukukhiqizwa kwesiteshi sesisekelo kanye nesivuno somkhiqizo, nokuthenga izinto zokusetshenziswa eduze kuyimizamo eqhubekayo yama-TFT amaningi- Abakhiqizi be-LCD..
I-Glass substrate iyingxenye ebalulekile yokukhiqizwa kwe-TFT-LCD, futhi izindleko zayo zibalelwa ku-15% kuya ku-18% wesamba sezindleko ze-TFT-LCD.Ithuthukiswe kusukela kulayini wesizukulwane sokuqala (300mm × 400mm) kuya kulayini wamanje wesizukulwane seshumi (2,850mm × 3,050).mm), idlule esikhathini esifushane nje seminyaka engamashumi amabili.Kodwa-ke, ngenxa yezidingo eziphakeme kakhulu zokwakheka kwamakhemikhali, ukusebenza kanye nezimo zenqubo yokukhiqiza ye-TFT-LCD yengilazi engaphansi, ubuchwepheshe bokukhiqiza ingilazi ye-TFT-LCD yomhlaba wonke kanye nemakethe sekuyisikhathi eside isetshenziswa ngabakwaCorning e-United States, i-Asahi Glass kanye I-Electric Glass, njll. Igunyazwe izinkampani ezimbalwa.Ngaphansi kokugqugquzelwa okuqinile kokuthuthukiswa kwemakethe, izwe elikhulu lezwe lami nalo laqala ukubamba iqhaza ngenkuthalo ku-R&D nasekukhiqizweni kwama-glass substrates e-TFT-LCD ngo-2007. Njengamanje, inani lemigqa yokukhiqiza ingilazi ye-TFT-LCD yesizukulwane sesihlanu futhi ngenhla zakhiwe eShayina.Kuhlelelwe ukwethula amaphrojekthi amabili wesizukulwane se-8.5 high-generation liquid crystal substrate umugqa wokukhiqiza engxenyeni yesibili ka-2011.
Lokhu kunikeza isiqinisekiso esibalulekile sokwenziwa kwasendaweni kwezinto zokusetshenziswa ezikhuphuka nomfula kubakhiqizi be-TFT-LCD ezweni lami kanye nokwehliswa okukhulu kwezindleko zokukhiqiza.
Ingxenye eyinhloko yobuchwepheshe bokukhiqiza be-TFT yinqubo ye-photolithography, engeyona nje ingxenye ebalulekile yokunquma ikhwalithi yomkhiqizo, kodwa futhi ingxenye ebalulekile ethinta izindleko zomkhiqizo.Enqubweni ye-photolithography, ukunakwa kakhulu kukhokhwa kumaski.Izinga layo linquma ikhwalithi ye-TFT-LCD ngezinga elikhulu, futhi ukuncishiswa kokusetshenziswa kwayo kunganciphisa ngempumelelo utshalomali lwemishini futhi kufinyeze umjikelezo wokukhiqiza.Ngokushintshwa kwesakhiwo se-TFT kanye nokwenza ngcono inqubo yokukhiqiza, inani lamamaski asetshenziswa enqubweni yokukhiqiza liyancishiswa ngokufanayo.Kuyabonakala ukuthi inqubo yokukhiqiza ye-TFT iguqukile kusukela ekuqaleni kwe-8-mask noma inqubo ye-7-mask lithography kuya enqubweni esetshenziswa kakhulu njengamanje ye-5-mask noma 4-mask lithography, enciphisa kakhulu umjikelezo wokukhiqiza we-TFT-LCD kanye nezindleko zokukhiqiza. .
4 Inqubo ye-mask lithography isiphenduke insakavukela embonini.Ukuze kuncishiswe ngokuqhubekayo izindleko zokukhiqiza, abantu bebelokhu bezama ukuhlola ukuthi bangaqhubeka kanjani behlisa inani lemaski elisetshenziswa enqubweni ye-photolithography.Eminyakeni yamuva, ezinye izinkampani zaseKorea zenze intuthuko ekuthuthukiseni inqubo ye-3-mask lithography, futhi zimemezele ukukhiqizwa okukhulu.Kodwa-ke, ngenxa yobuchwepheshe obunzima benqubo ye-mask engu-3 kanye nezinga lokukhiqiza eliphansi, kusekhona ukuqhubeka okuqhubekayo.Ngaphansi kokuthuthukiswa nokuthuthukiswa.Kusukela kumbono wokuthuthukiswa kwesikhathi eside, uma ubuchwepheshe bokuphrinta be-Inkjet (inkjet) benza impumelelo, ukugcwaliseka kokukhiqiza okungenamaski kuwumgomo omkhulu abantu abawuphishekelayo.
