TFT-LCD xuubka beddelka
TFT-LCD xuubka beddelka
Astaamaha
LCD waxay u beddeshay CRT sida caadiga ah, qiimuhuna aad buu hoos ugu dhacay, wuxuuna noqday mid caan ah.
Sida laga soo xigtay ilo kala duwan, LCD waxaa loo qaybin karaa laba nooc: CCFL iyo LED.
Faham la'aan:
Isticmaalayaal badan ayaa aamminsan in muraayadaha dareeraha ah ee crystals loo qaybin karo LEDs iyo LCDs.Ilaa xad, fahamkan waxa marin habaabiyay xayaysiisyada.
Muujinta LED-ka ee suuqa ma aha muuqaal LED ah oo run ah.Si aad u noqoto mid sax ah, waa muraayadda dareeraha ah ee LED-backlit.Qalabka crystal-ka dareeraha ah ayaa wali ah bandhig LCD dhaqameed.Dareen ahaan, tani waa wax khiyaano ah.dabeecadda!Shirkada Samsung oo laga leeyahay Kuuriyada Koonfureed ayaa mar waxa ay ururka xayaysiisyada Ingiriiska ku xukuntay in uu ku xad-gudbay sharciyada xayaysiisyada dalka sababtoo ah TV-yada "LEDTV" LCD TV-yada ayaa looga shakiyay in ay marin habaabiyeen macaamiisha.Bandhigyada crystal-ka dareeraha ah, furaha ugu muhiimsan waa muraayadda LCD-ga iyo nooca dhabarka, halka muraayadaha LCD ee bandhigyada suuqa ay guud ahaan isticmaalaan muraayadaha TFT, kuwaas oo isku mid ah.Farqiga u dhexeeya LED-yada iyo LCD-yada ayaa ah in nuucyadooda iftiinka dambe ay kala duwan yihiin: LED-ka nalka dambe iyo CCFL (taas oo ah, nalalka fluorescent) waa diodes iyo nalalka cathode qabow, siday u kala horreeyaan.
LCD waa soo gaabinta Bandhiga Crystal Crystal, taas oo macnaheedu yahay "muujinta crystal dareere ah", taas oo ah, muraayad dareere ah.Nalalka LED-ku waxa ay tilmaamayaan nooc ka mid ah muraayadda crystal dareeraha ah (LCD), taas oo ah, muraayad dareere ah (LCD) oo leh LED (diode iftiin leh) oo ah isha iftiinka dambe.Waxaa la arki karaa in LCD ay ku jiraan LEDs.Isku-duwaha LED-ka ayaa runtii ah CCFL.
CCFL
Waxa loola jeedaa muraayadda dareeraha ah ee crystal (LCD) oo leh CCFL (lambalka qabow ee cathode fluorescent) sida isha iftiinka.
Faa'iidada CCFL waa waxqabadka midabka wanaagsan, laakiin khasaaradu waa isticmaalka awoodda sare.
LED
Waxa loola jeedaa muraayadda dareeraha ah ee crystal (LCD) ee u adeegsata LED-yada (diodes-ka iftiimaya) il danbeedka, oo guud ahaan loola jeedaa WLEDs (LEDs iftiin cad).
Faa'iidooyinka LED waa cabbir yar iyo isticmaalka tamarta yar.Sidaa darteed, isticmaalka LED sida isha iftiinka dambe waxay gaari kartaa dhalaal sare iyadoo la tixgelinayo iftiinka iyo khafiifka.Khasaaraha ugu weyni waa in waxqabadka midabku uu ka sii xun yahay kan CCFL, sidaas darteed inta badan garaafyada xirfadleyda LCD-yada ayaa wali isticmaala CCFL-dhaqameedka isha iftiinka dambe.
Qiyaasta Farsamada
Qiimo jaban
Guud ahaan, dhimista kharashku waxay noqotay xeer muhiim u ah shirkaduhu si ay u noolaadaan.Intii lagu jiray taariikhda horumarinta TFT-LCD, ma adka in la helo in kordhinta cabbirka muraayadaha muraayadda, yaraynta tirada waji-xidhka, kordhinta wax soo saarka saldhigga saldhigga iyo wax-soo-saarka, iyo iibsashada alaabta ceeriin ee u dhow waa dadaallada joogtada ah ee TFT- Soosaarayaasha LCD..
Substrate-ka dhalada ahi waa walxo ceeriin ah oo muhiim u ah soo saarista TFT-LCD, qiimaheeduna waxa uu gaarayaa ilaa 15% ilaa 18% wadarta qiimaha TFT-LCD.Waxay ka soo baxday xariiqda jiilkii kowaad (300mm × 400mm) ilaa jiilka tobnaad ee hadda (2,850mm × 3,050).mm), waxay soo martay muddo gaaban oo labaatan sano ah.Si kastaba ha noqotee, iyada oo ay ugu wacan tahay shuruudaha aadka u sarreeya ee ka kooban kiimikada, waxqabadka iyo xaaladaha habka wax soo saarka ee TFT-LCD, tignoolajiyada wax soo saarka muraayadda TFT-LCD ee caalamiga ah iyo suuqa ayaa muddo dheer loo adeegsaday Corning ee Mareykanka, Asahi Glass iyo Muraayadaha Korontada iwmUnder kor u qaadida xooggan ee horumarinta suuqa, dhulweynaha dalkayga ayaa sidoo kale bilaabay in ay si firfircoon uga qayb R & D iyo wax soo saarka ee TFT-LCD substrates galaas ee 2007. Waqtigan xaadirka ah, tiro ka mid ah TFT-LCD khadadka wax soo saarka substrate galaas ee jiilka shanaad iyo kor ayaa laga dhisay Shiinaha.Waxaa la qorsheeyay in la bilaabo laba 8.5-jiilka sare ee dareere crystal galaas mashruuc line wax soo saarka ee qeybtii labaad ee 2011.
Tani waxay dammaanad muhiim ah siinaysaa meelaynta alaabta ceyriinka ah ee kor u kaca ee soosaarayaasha TFT-LCD ee dhul weynaha dalkeyga iyo hoos u dhac weyn oo ku yimid kharashaadka wax soo saarka.
Qaybta ugu muhiimsan ee tignoolajiyada wax soo saarka ee TFT waa habka sawir-qaadista, taas oo aan ahayn qayb muhiim ah oo ka mid ah go'aaminta tayada alaabta, laakiin sidoo kale qayb muhiim ah oo saameeya qiimaha alaabta.Habka sawir-qaadista, dareenka ugu badan ayaa la bixiyaa maaskarada.Tayada ayaa go'aamisa tayada TFT-LCD ilaa xad weyn, iyo dhimista isticmaalkeeda waxay si wax ku ool ah u yareyn kartaa maalgashiga qalabka waxayna soo gaabin kartaa wareegga wax soo saarka.Isbeddelka qaabdhismeedka TFT iyo hagaajinta habka wax soo saarka, tirada maaskaro ee loo isticmaalo habka wax soo saarka ayaa si isku mid ah loo dhimay.Waxaa la arki karaa in habka wax soo saarka TFT uu ka soo baxay horraantii 8-mask ama 7-mask lithography habka hadda loo isticmaalo habka 5-mask ama 4-mask lithography, taas oo aad u yaraynaysa wareegga wax soo saarka TFT-LCD iyo kharashka wax soo saarka. .
4 Habka sawir-qaadista maaskarada ayaa noqday midka ugu muhiimsan ee warshadaha.Si si joogto ah loo yareeyo kharashka wax soo saarka, dadku waxay isku dayeen inay sahamiyaan sida loo sii yareeyo tirada maaskaro ee loo isticmaalo habka sawir-qaadista.Sanadihii la soo dhaafay, qaar ka mid ah shirkadaha Kuuriya ayaa horumar ka sameeyay horumarinta habka 3-mask lithography, waxayna ku dhawaaqeen wax soo saar ballaaran.Si kastaba ha ahaatee, iyadoo ay ugu wacan tahay tignoolajiyada adag ee habka 3-maaskarada iyo heerka wax-soo-saarka hooseeya, weli waxaa jira horumar dheeraad ah.Horumarinta iyo hagaajinta hoosteeda.Marka laga eego dhinaca horumarka muddada-dheer, haddii Inkjet (inkjet) tignoolajiyada daabacaadda ay horumar samayso, xaqiijinta wax-soo-saarka waji-xidhka la'aanta ah waa yoolka ugu dambeeya ee dadku raacaan.
