Itandukaniro rinini hagati ya kirisiti yamazi na plasma nuko kristu yamazi igomba kwishingikiriza kumasoko yumucyo utuje, mugihe plasma TV ari mubikoresho byerekana luminescence. Kugeza ubu, tekinoroji nyamukuru yamashanyarazi yamashanyarazi kumasoko arimo LED (diode itanga urumuri) na CCFL (itara rikonje cathode fluorescent)Imiterere ya LCD ni Liquid Crystal yashyizwe hagati y'ibice bibiri bisa n'ibirahure.Hariho insinga nyinshi zihagaritse kandi zitambitse hagati yibice bibiri byikirahure.
Amazi ya kirisiti ubwayo ntabwo asohora urumuri, arashobora gusa guhindura amabara, akenera urumuri rwinyuma kugirango abone ibiri murugaragaza. Itandukaniro riri hagati ya mudasobwa igendanwa ya mudasobwa igendanwa, ikoresha imiyoboro ikonje ya cathode fluorescent (CCFL) nk'itara ryinyuma, hamwe na LED yerekana inyuma, ikoresha diode itanga urumuri (leds), ni uko.Umweru LED ni isoko yumucyo, umuyoboro wa CCFL ni isoko yumucyo. Utubuto duto twera dukoreshwa nimbaraga zitaziguye (dc), zishobora gukoreshwa tandem, ariko niba ubikora ufite watts zirenze nkeya, ugomba gutekereza kumuzunguruko ukwiye kugirango utezimbere imikorere.Umuyoboro wa CCFL ugomba kuba ufite "plaque plaque plaque" ihuye nikoreshwa.Gusa hariho ubwoko butandukanye bwurumuri rwa LCD, harimo LED (Light Emitting Diode) hamwe na CCFL (Cold Cathode Fluorescent Itara) cyangwa yitwa CCFT (Cold Cathode Fluorescent Tube).
Itara ryinyuma rya CCFL (itara rikonje rya cathode fluorescent) nigicuruzwa nyamukuru cyamatara yinyuma ya LCD TV.Bikora iyo voltage nini kumpande zombi za tube, tube mumashanyarazi make yihuta nyuma ya electrode itanga imyuka ya elegitoronike ya kabiri, itangiye gusohora, umuyoboro wa mercure cyangwa inert gazi ya elegitoronike nyuma yingaruka, imishwarara yo kwishima 253.7 nm ultraviolet, urumuri ultraviolet ya tu fosifore kurukuta rwigituba kandi ikabyara urumuri rugaragara. itara ryubu, itara ryaragabanutse kugera kuri 50% yumucyo wambere wuburebure bwigihe cyubuzima bwamatara. Kugeza ubu, ubuzima bwizina bwurumuri rwa LCD TV rushobora kugera kumasaha 60.000. Itara ryinyuma rya CCFL rirangwa nigiciro gito, ariko imikorere yamabara ntabwo ari byiza nka LED inyuma.
LED yamurika ikoresha LED nkisoko yinyuma, nubuhanga butanga ikizere cyo gusimbuza umuyoboro gakondo wa cathode fluorescent umuyoboro mugihe kizaza.Ibitereko bikozwe mubice bito bito byifashishwa bya semiconductor, kimwe kirenze electron, ikindi kidafite, gukora umwobo ushizwemo neza unyuzamo electroni nu mwobo bihuza uko amashanyarazi arengana, kurekura ingufu zirenze muburyo bwimirasire yumucyo. Ibitanda bifite ibimenyetso bitandukanye bya luminescence birashobora kuboneka ukoresheje ibikoresho bya semiconductor bitandukanye. Ibitanda bimaze gukoreshwa mubucuruzi birashobora gutanga umutuku, icyatsi, ubururu , icyatsi, orange, amber n'umweru. Terefone igendanwa ikoresha cyane urumuri rwera rwa LED rwera, mugihe urumuri rwa LED rukoreshwa muri TV ya LCD rushobora kuba umweru, umutuku, icyatsi n'ubururu.Mu bicuruzwa byo mu rwego rwo hejuru, amatara menshi ya LED yamurika arashobora kandi gukoreshwa kugirango arusheho kunoza imvugo, nkamabara atandatu yibanze LED yamurika.Icyiza cyo kumurika LED ni uko umubyimba woroshye, hafi cm 5, hamwe na gamut y'amabara ni ngari cyane, ishobora kugera kuri 105% ya gamut ya NTSC.Luminous flux yumukara irashobora kugabanuka kugera kuri 0,05 lumens, bigatuma ikigereranyo cyo gutandukanya TV ya LCD igera ku 10,000: 1.Mu gihe kimwe, isoko yamatara ya LED ifite andi masaha 100.000 yubuzima. Kugeza ubu, ikibazo nyamukuru kibuza iterambere ryamatara ya LED nigiciro, kuko igiciro kiri hejuru cyane yumucyo wamatara akonje ya fluorescent, isoko yinyuma ya LED irashobora kugaragara gusa murwego rwohejuru rwa LCD TVS mumahanga.
Ibyiza bya LED ituruka inyuma
1. Mugaragaza irashobora gukorwa neza.Iyo turebye kuri LCDS zimwe, dushobora kubona ko hariho imiyoboro myinshi ya CCFL itunganijwe.Kumurika, kurundi ruhande, ni ibikoresho bisohora urumuri, bisaba ko nta bikoresho byiyongera.
2. Ingaruka nziza yamashusho CCFL isubira inyuma muri rusange ifite urumuri rutandukanye hagati no hafi, hamwe na cyera iyo ecran yirabura rwose
Amatara ya fluorescent ya CCFL, nkamatara ya fluorescent, imyaka uko ibihe bigenda bisimburana, bityo ecran za mudasobwa zigendanwa zizahinduka umuhondo numwijima nyuma yimyaka ibiri cyangwa itatu, mugihe ecran ya LED izamara igihe kirekire, byibuze inshuro ebyiri cyangwa eshatu.
Twese tuzi ko amatara ya fluorescent akenera voltage nyinshi kugirango bombe ya bombo ya mercure, bityo rero ingufu za ecran ya CCFL nini, muri rusange santimetero 14 zo gukoresha amashanyarazi muri watt zirenga 20. Ibitanda ni semiconductor ikora kuri voltage nkeya, byoroshye muburyo, kandi ukoreshe imbaraga nke, ubikora cyane cyane mubuzima bwa bateri ya mudasobwa.
5. Ibidukikije byangiza ibidukikije mercure mumatara ya CCFL bizatera umwanda mwinshi kubidukikije, kandi bizagorana cyane kubyangiza nabi.
Ihame ryakazi rya CCFL ubukonje bwa cathode fluorescent itara
Imiterere yumubiri wa CCFL ikonje ya cathode fluorescent itara ni uko gazi ya inert ivanze na Ne + Ar ivanze irimo imyuka ya mercure ya mercure (mg) ifunzwe mu kirahure kandi ibintu bya fluorescent bigashyirwa kurukuta rwimbere rwikirahure.CCFL ikonje ya cathode fluorescent tubes gusohora urumuri ukubita ifu ya fluorescent kurukuta hamwe nurumuri ultraviolet yishimiye mercure ya gaze ikoresheje electrode kumpande zombi zumuyoboro. Uburebure bwumuraba bugenwa nimiterere yibikoresho bya fluorescent.
Inenge ya CCFL ikonje ya cathode fluorescent itara
Inkomoko yumucyo ya CCFL ikoresha amazi ya kirisiti ya TV ikoresha muri iki gihe, ntakibazo kireba gutanga ihame ryumucyo cyangwa kumiterere yumubiri, reba numuyoboro wamanywa dukoresha burimunsi hafi cyane.Ubu bwoko bwumucyo bufite ibyiza byuburyo bworoshye, ubushyuhe buke bwiyongera hejuru yigituba, umucyo mwinshi hejuru yigituba no gutunganya byoroshye muburyo butandukanye.Ariko ubuzima bwa serivisi ni bugufi, burimo mercure, ibara rya gambit riragufi, gusa rishobora kugera kuri NTSC 70% ~ 80% .Kuri binini - binini bya TV byerekana, amashanyarazi ya CCFL hamwe no gutunganya imiyoboro yagutse biragoye.
Ubwa mbere, kubabara umutwe munini ni igihe gito cyo kubaho.CCFL itara rya serivisi yubuzima ni amasaha 15,000 kugeza kumasaha 25.000, igihe kinini cyo gukoresha LCD (cyane cyane mudasobwa igendanwa LCD), niko bigaragara ko umucyo ugabanuka, mugukoresha imyaka 2-3 , LCD ecran izaba yijimye, umuhondo, ubu ni ubuzima bugufi bwinenge za CCFL zatewe na.
Icya kabiri, igabanya ibara rya LCD. Buri pigiseli muri LCD igizwe na R, G na B ibara ryurukiramende, kandi imikorere yamabara ya LCD biterwa rwose nimikorere ya module yinyuma hamwe na firime yamabara. amabara ya filteri ya firime ni nkumucyo wera utangwa na CCFL (igizwe namabara atatu yibanze), ariko moderi yinyuma ya CCFL ntishobora rwose kuba yujuje ibyashizweho, gusa 70% byurwego rwa NTSC.
Icya gatatu, imiterere iragoye kandi umucyo usohoka uburinganire burakennye.Kuko itara rikonje rya cathode fluorescent ntabwo ari isoko yumucyo windege, kugirango rero ugere kumucyo umwe utanga urumuri rwinyuma, module yinyuma ya LCD igomba kuba ifite ibikoresho byinshi byingirakamaro. nk'isahani ya diffuzeri, icyapa kiyobora urumuri hamwe nicyapa cyerekana.
Icya kane, ingano nini, gukoresha ingufu ntabwo ari byiza. Ingano ya LCD ntishobora gukomeza kugabanuka kuko itara ryinyuma rya CCFL rigomba kuba rifite plaque ya diffuzeri, icyapa cyerekana ibyuma nibindi bikoresho bya optique.Mu bijyanye no gukoresha ingufu, LCDS ikoresha CCFL nk'itara ryinyuma nayo ntibishimishije, nkuko LCDS-14-isaba imbaraga 20W cyangwa zirenga.
Birumvikana ko mu myaka ibiri ishize abahinguzi bo mu gihugu ndetse n’abanyamahanga urebye ibitagenda neza bya CCFL gakondo hari ibyo bahinduye, bisa nkaho bigeze ku rwego rwo hejuru cyane, kumenyekanisha ibicuruzwa bivugwa ko ari amarozi, ariko ibyo byateye imbere ni bike, kandi ntibishobora gukuraho burundu CCFL itara inyuma inenge ya tekiniki.
Kugeza ubu, itara ryinyuma ni cyane cyane umuyoboro wa CCFL, igiciro gishobora kuba gitoya, tekinoroji irakuze.Kumurika amatara kandi bigarukira gusa ku bicuruzwa bito byerekana nka terefone igendanwa, MP3, MP4, n'ibindi. Ku bicuruzwa binini bya ecran, ni haracyari icyerekezo cyimbaraga.Nyamara, nibyinshi bizigama ingufu, ninyungu zayo
Igihe cyo kohereza: Jun-29-2019