Tsev > Exhibition > Ntsiab lus

Hloov lub teeb nrig

Oct 12, 2017

CCFL txias cathode fluorescent teeb qauv

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CCFL txias cathode fluorescent teeb (CCFL-Cold Cathode Fluorescent Teeb los yog CCFT-Mob khaub thuas Cathode Fluorescent Tube) yog hom tshiab teeb pom kev zoo; Vim tias CCFL lub raj muaj cov qauv yooj yim, lub teeb kub, lub teeb ci teeb ntawm lub teeb thiab lub teeb ci ntawm lub teeb lub raj thiab kev ua tau yooj yim rau ntau yam duab (ncaj qauv, L qauv, U hom nplhaib, thiab lwm yam) thiab kev pab lub neej ntev, zoo xim, uniformity etc .; yog li lub teeb pom kev zoo tam sim no TFT-LCD, kuj dav siv nyob rau hauv cov khoom, kev luam ntaub ntawv thiab kev kos duab. Mob khaub thuas cathode fluorescent teeb (CCFL) siv cov iav hnyav thiab kev ua haujlwm siab peb xim phosphor, cov txheej txheem sealing siab, lub raj muaj mercury thiab cov nqi roj loj; lub puab ntsa ntawm lub raj yog coated nrog fluorescent hmoov, txhua kawg ntawm ib qho hluav taws xob.

CCFL txias cathode fluorescent teeb yog qhov tseem ceeb tshaj plaws ntawm lcd. Nws txoj haujlwm ua haujlwm yog thaum muaj kev kub nyhiab ntawm ob qho tagnrho ntawm lub teeb lub raj, lub teeb electrodes uas tau ua tom qab ob peb lub xov tooj hluav taws xob qis tshaj ob theem hluav taws xob, kev tawm hauv tsev, cov mercury lossis cov roj hauv hluav taws xob los ntawm electron influx xob cua, 253.7nm UV, UV excitation ntawm fluorescent hmoov coated rau sab hauv phab ntsa ntawm cov yeeb nkab ua pom pom. CCFL teeb lub neej yog feem ntau txhais tias: tom 25 degrees Celsius ambient temperature, nrog qhov nqi txheeb kom tsav lub raj, ci ntsa iab mus rau 50% ntawm qhov pib lub ci ua haujlwm ntawm lub sijhawm ua haujlwm, ntev ntawm lub teeb lub neej. Tam sim no, LCD backlight nominal neej tau mus txog 60000 teev. CCFL (txias cathode fluorescent lamp) backlight yog characterized los ntawm tus nqi qis, tab sis qhov kev ua haujlwm xim tsawg dua li ntawm LED.

LED backlight siv LED ua ib lub nrig kev lag luam, uas yog feem ntau tshaj lwm txoj rau cov tsos mob txias cathode fluorescent leeg nyob rau hauv lub neej yav tom ntej. Cov ntaub ntawv ntawm doped semiconductor khoom coj los ntawm ntau tus txheej txheem, ib txheej nrog ntau dhau lawm ntawm electrons, lwm txheej yog tsis muaj daim ntawv hluav taws xob zoo ntawm cov chaw, los ntawm kev ua hauj lwm tam sim no, kev sib txuas ntawm electrons thiab qhov, lub zog tshaj hauv lub daim duab ntawm cov teeb hluav taws xob raug tso tawm. Lub teeb tawg emitting diodes nrog cov yam ntxwv luminous sib txawv tau los ntawm kev siv cov khoom sib txawv ntawm semiconductor. LEDs tam sim no muaj rau kev siv lag luam muaj xim ntsuab, ntsuab, xiav, cyan, txiv kab ntxwv, daj, dawb, thiab lwm yam xim. Kev siv cov xov tooj ntawm tes yog tsuas yog cov teeb pom kev ncaj ncees ntawm LED, LED backlight qhov siv nyob rau hauv LCD TV tuaj yeem ua dawb, tuaj yeem yog xim liab, ntsuab thiab xiav peb xim, nyob rau hauv high-end cov khoom yuav siv los ntxiv txhim kho lub teeb liab multicolor Backlight xim kev ua tau zoo, xws li 6 xim LED backlight teeb qhov chaw. Qhov zoo ntawm kev siv cov teeb ci ntsa iab yog thinner, kwv yees li 5 cm, xim gamut yog sab heev, tuaj yeem tau 105% NTSC xim gamut, dub yog lub luminous flux yuav raug txo kom 0.05 lumens, thiab tom qab ntawd ua LCD TV zoo ib yam li 10000: 1. Tib lub sij hawm, LED backlight source kuj muaj 100 txhiab teev ntawm lub neej. Tam sim no, qhov teeb meem tseem ceeb uas txwv kev loj hlob ntawm LED backlight yog tus nqi. Vim hais tias tus nqi ntau dua li qhov uas muaj cov kab mob khaub thuas Fluorescent teeb, qhov teeb meem ntawm LED teeb pom kev tsuas tau tshwm sim nyob rau hauv high-end LCD khoom sia mus thoob ntiajteb.

Ntawm qhov siab ntawm LED backlight qhov chaw, cov chaw tsim khoom lag luam tau pib muaj kev paub zoo CCFL (txias cathode fluorescent teeb) backlight LCD TV khoom, cov neeg sawv cev ntawm SONY thiab SHARP. SONY WCG CCFL (WCG CCFL) nyob rau hauv ib lub teeb nyiaj ntau hom kab mob khaub thuas los ntawm kev ntxiv phosphorus los txhawb ntsuab purity, ua kom muaj xim zoo tshaj plaws gamut, feem ntau mas yog qhov ntsuab ntawm TV yog dazzling heev. Qhov tsis zoo, txawm li cas los xij, yog tias tus nqi siab tshaj yog tsis siv tau rau cov tsev neeg hauv tsev neeg. Tam sim no, ib co Samsung khoom kuj muaj cov tshuab no. SHARP xaiv lub tswv yim ntawm tus nqi tsawg. SHARP tus thib yim - khoom vaj huam sib luag khoom ntiav siv plaub - qhov kev lag luam (backlight technology) (uas yog yav tas los siv hauv 65 nti cov khoom). Lub hauv paus ntsiab lus ntawm SHARP tus plaub ntug ntsa wavelength yog ua kom muaj qhov kev nthuav qhia liab los ntawm kev muab lub teeb liab liab rau ntawm lub raj. Thiab tus nqi ntawm LED LED liab yog tsawg heev. Nws yog lub ntsej muag ntau dua SONY. Qhov no kuj ua rau pom tseeb meej tias lub vaj huam sib luag hauv SHARP yuav liab hauv txhua qhov dub!

Rau cov kua siv lead ua kua nrog CCFL txias cathode fluorescent teeb, lub teeb nrig rov qab yuav laus siab thiab qis dua thaum siv lub sij hawm txwv. Lub sij hawm no, koj tuaj yeem hloov txoj kev lag luam hauv qab taw, kom LCD rov qab yug dua tshiab. Txawm li cas los xij, peb yuav tsum paub hais tias qhov kev teeb pom kev yog tsis yog ib lub raj cua ntawm lub chaw ua hauj lwm, tab sis los ntawm ib pawg ntawm ntau cov ntaub ntawv uas muaj ib pawg txhawb nqa kev sib koom ua ke. Muaj pes tsawg tus keeb kwm yav dhau los yog qhov yooj yim, thiab cov ntaub ntawv muaj xws li: backlight phaj, reflector, daim ntawv xaav, kev teeb pom kev zoo thiab lwm yam. Qhov tseeb, nws yog qhov yooj yim to taub, yog tias tsuas muaj ib lub teeb rau hauv rooj plaub, ntawm lub teeb nyob ze deb ntawm teeb lub teeb pom kev muaj peev xwm muaj qhov sib txawv loj heev, yog li ntawd ib pawg ntawm ntau feem kev txhawb zog pawg hom phiaj yog ua rau CCFL lub teeb emitted yuav ua tau tusyees hauv cov kua siv lead ua kua, koj siv lub sijhawm, tsuas yog tsis tuaj yeem ntes tau, qhov cub me me yog qhov qis thiab qis seem ntawm koj npo, los yog sab? Tus ntawd yog nws txoj haujlwm tseem ceeb. Tag nrho cov kev sib koom ua ke nrhav kev tu ncua siab yog qhov siab, tag nrho cov koom ua ke rov qab pawg hauv qhov chaw huv, vim tias yog muaj paug plab mus rau cov teeb pom kev tuaj sab hauv, ces lub teeb, qhov screen yuav pom meej meej thiab pom tseeb, kev lag luam, 0. Cov hauv li ntawm 2 hli. Hloov lub nrob qaum tsis yooj yim li hloov lub teeb lub raj. Qhov zoo tshaj plaws yog hloov nws hauv lub xeev tsis muaj plua av los ntawm cov chaw tsim khoom.