TV cov tuam txhab lag luam tsis tu ncua paub cov neeg siv nrog cov thev naus laus zis tshiab uas txhim kho cov duab zoo. Txoj hauv kev rau kev sib txuas cov ntxaij vab tshaus TV thiab LED cov ntsiab lus tau ntev tau paub los ntawm cov tuam txhab loj tshaj plaws. Tsis ntev los no, lub hauv paus ntawm lub ci ntsa iab thiab muag muag kuj tseem txav mus rau cov khoom siv ntawm tes. Cov neeg siv cov teeb pom kev zoo ib txwm siv raws li LEDs kuj tuaj yeem txaus siab rau qhov zoo ntawm cov kev daws teeb meem, tab sis, ntawm chav kawm, qhov backlighting ntawm LED cov ntxaij vab tshaus hauv TVs zoo li ntxim nyiam tshaj plaws. Ntxiv mus, nws tau ua tiav los ntawm lwm cov kev siv thev naus laus zis siv los ntawm cov neeg tsim khoom ntawm cov txheej txheem no.
Illumination device
Hauv kev tsim cov qauv rau kev siv lub teeb pom kev zoo, LED-arrays yog siv, uas tuaj yeem muaj cov ntsiab lus dawb ntawm LED ci lossis ntau xim, xws li RGB. Tus tsim ntawm lub rooj tsavxwm rau equipping lub matrix yog tshwj xeeb tsim los integrate ib tug tshwj xeeb xov xwm qauv rau hauv lub ntaus ntawv. Raws li txoj cai, nyob rau sab laug ntawm lub rooj tsavxwm muaj cov khoom sib txuas, ib qho uas muab lub zog rau LED backlight, thaum lwm tus yog tsim los tswj nws cov chaw ua haujlwm. Tsis tas li ntawd, ib tus neeg tsav tsheb tshwj xeeb yog siv rau LED modules, qhov kev ua haujlwm uas cuam tshuam nrogcontroller.
Thaum ua tiav, LED sawb yog ib kab ntawm cov teeb me me uas txuas nrog 3 pawg. Yog lawm, manufacturers tsis pom zoo kom cuam tshuam nrog cov cuab yeej ntawm xws li tapes, tab sis yog tias xav tau, koj tuaj yeem ua lub cev luv luv lossis, ntawm qhov tsis sib xws, ua rau lub cuab yeej ntev dua. Tus qauv LED npo backlighting kuj yog dimmable, txhawb kev pib muag muag thiab muab kev tiv thaiv hluav taws xob.
Kev faib tawm ntawm lub teeb rov qab los ntawm hom kev teeb tsa
Muaj ob txoj hauv kev los ua ke LED teeb pom kev zoo - ncaj thiab ntug. Thawj qhov kev teeb tsa xav tias cov array yuav nyob tom qab cov kua siv lead ua kua vaj huam sib luag. Qhov kev xaiv thib ob tso cai rau koj los tsim cov tshuaj ntsuam nyias nyias thiab hu ua Edge-LED. Nyob rau hauv cov ntaub ntawv no, cov tapes yog muab tso rau ib ncig ntawm lub perimeter ntawm lub puab sab ntawm cov zaub. Nyob rau hauv cov ntaub ntawv no, cov niaj hnub faib ntawm LEDs yog nqa tawm siv ib tug nyias muaj nyias ib lub vaj huam sib luag, uas yog nyob rau hauv qab cov kua siv lead ua kua zaub - feem ntau hom LED screen backlighting no yog siv nyob rau hauv kev loj hlob ntawm mobile pab kiag li lawm. Adherents ntawm ncaj qha backlight taw tes rau qhov zoo ntawm qhov tshwm sim ntawm lub ci, uas yog ua tiav vim ntau LEDs, raws li zoo raws li lub zos dimming kom txo cov xim streaks.
YSiv LED backlight
Cov neeg siv khoom nruab nrab tuaj yeem pom cov thev naus laus zis no ntawm Sony, LG thiab Samsung TVs, nrog rau Kodak thiab Nokia cov khoom lag luam. Tau kawg,LEDs tau dhau los ua ntau dua, tab sis nws yog nyob rau hauv cov qauv ntawm cov tuam txhab tsim cov kev hloov pauv tau pom zoo rau kev txhim kho cov neeg siv khoom zoo ntawm cov tshuaj no. Ib qho ntawm cov haujlwm tseem ceeb ntawm cov neeg tsim qauv yog los tswj qhov kev tshuaj ntsuam nrog kev ua haujlwm zoo nyob rau hauv lub hnub ncaj qha. Tsis tas li ntawd, LED backlighting tsis ntev los no tau txhim kho nyob rau hauv cov nqe lus ntawm qhov sib txawv ntxiv. Yog hais tias peb tham txog kev nce qib nyob rau hauv cov kev taw qhia ntawm lub screen tsim, ces muaj kev pom zoo txo nyob rau hauv lub thickness ntawm panels, raws li zoo raws li compatibility nrog ib tug loj kab pheeb ces kaum. Tab sis cov teeb meem tseem tsis tau daws. LEDs tsis muaj peev xwm qhia tau tag nrho lawv lub peev xwm hauv cov txheej txheem ntawm kev nthuav qhia cov ntaub ntawv. Txawm li cas los xij, qhov no tsis tiv thaiv LED thev naus laus zis los hloov CCFL teeb thiab ua tiav kev sib tw nrog cov cim tshiab ntawm cov ntxaij vab tshaus.
Stereoscopic teebmeem
Modules raws li LEDs muaj peev xwm muab ntau yam teebmeem. Nyob rau theem no ntawm kev txhim kho thev naus laus zis, cov tuam txhab lag luam nquag siv ob txoj kev daws teeb meem stereoscopic. Thawj qhov muab rau lub angular sib txawv ntawm cov hluav taws xob fluxes nrog kev txhawb nqa ntawm cov nyhuv diffraction. Tus neeg siv tuaj yeem pom cov nyhuv no thaum saib nrog lossis tsis muaj tsom iav, uas yog, hauv hom holographic. Cov nyhuv thib ob muab rau kev hloov pauv ntawm lub teeb flux, uas yog tawm los ntawm lub teeb rov qab ntawm lub vijtsam LED nyob rau hauv cov kev taw qhia ntawm ib tug muab trajectory nyob rau hauv cov kua siv lead ua txheej. Cov tshuab no tuaj yeem siv ua ke nrog 2D thiab3D hom tom qab tsim nyog hloov dua siab tshiab los yog rov encoding. Txawm li cas los xij, hais txog qhov muaj peev xwm ua ke nrog cov duab peb sab, LED backlights tsis zoo.
Compatible with 3D thev naus laus zis
Qhov no tsis yog hais tias LED-backlit cov ntxaij vab tshaus muaj teeb meem cuam tshuam loj nrog 3D hom, tab sis tsom iav tshwj xeeb yuav tsum tau ua kom pom kev pom zoo ntawm "daim duab" los ntawm tus neeg saib. Ib qho kev cog lus zoo tshaj plaws ntawm qhov kev txhim kho no yog tsom iav tso suab. Piv txwv li, nVidia engineers tau tso tawm 3D shutter iav nrog kua siv lead ua iav ob peb xyoos dhau los. Txhawm rau deflect lub teeb ntws, LED backlight ntawm LCD npo siv cov lim dej polarization. Nyob rau hauv cov ntaub ntawv no, tsom iav yog ua tsis muaj ib tug tshwj xeeb thav duab, nyob rau hauv daim ntawv ntawm ib tug ribbon. Lub lens built-in muaj ntau yam ntawm translucent LED arrays uas tau txais cov ntaub ntawv los ntawm cov cuab yeej tswj.
Backlight Benefits
Piv rau lwm qhov kev xaiv backlight, LEDs txhim kho cov neeg siv khoom zoo ntawm cov ntxaij vab tshaus TV. Ua ntej ntawm tag nrho cov, cov yam ntxwv tam sim ntawd ntawm cov duab yog txhim kho - qhov no yog qhia nyob rau hauv ib qho kev nce nyob rau hauv sib piv thiab xim luam tawm. RGB matrix muab qhov zoo tshaj plaws ntawm cov xim spectrum ua. Tsis tas li ntawd, lub backlight ntawm lub vijtsam LED yog tus cwj pwm los ntawm kev siv hluav taws xob tsawg. Tsis tas li ntawd, qee zaum, qhov txo qis ntawm kev siv hluav taws xob txog li 40% tau ua tiav. Nws tseem tsim nyog sau cia qhov ua tau ntawm cov ntxaij vab tshaus ultra-nyias, uas tib lub sijhawm muaj me me.luj.
Flaws
Cov neeg siv ntawm LED TVs tau raug thuam rau qhov teeb meem cuam tshuam ntawm xiav-violet hluav taws xob ntawm lub qhov muag. Tsis tas li ntawd, bluishness tau pom nyob rau hauv "daim duab" nws tus kheej, uas distorts lub ntuj xim luam tawm. Muaj tseeb tiag, nyob rau hauv qhov tseeb versions ntawm high-resolution TVs, LED backlight ntawm lub vijtsam tau xyaum tsis muaj qhov tsis xws luag. Tab sis muaj teeb meem nrog kev tswj kev ci ntsa iab, uas cuam tshuam nrog kev hloov pauv pulse-dav. Koj tuaj yeem pom lub vijtsam flicker thaum lub sijhawm teeb tsa no.
Zoo kawg
Hnub no, ntu ntawm cov qauv TV nrog LED thev naus laus zis yog nyob rau hauv nws cov me nyuam mos. Cov neeg siv khoom tseem tab tom ntsuas qhov ua tau thiab qhov zoo uas qhov kev daws teeb meem tshiab tuaj yeem muab tau. Nws yuav tsum raug sau tseg tias kev ua haujlwm tsis zoo ntawm LED backlighting tsis cuam tshuam cov neeg siv ntau npaum li tus nqi siab. Ntau tus kws tshaj lij suav tias qhov no yog qhov teeb meem tseem ceeb rau kev nthuav dav ntawm kev siv tshuab. Txawm li cas los xij, qhov kev cia siab rau LEDs tseem muaj kev vam meej, vim tias lawv cov nqi yuav poob qis thaum qhov kev thov nce ntxiv. Nyob rau tib lub sijhawm, lwm yam teeb pom kev zoo tau raug txhim kho, uas ntxiv dag zog rau qhov kev nyiam ntawm qhov kev thov no.
