Cov TV niaj hnub thiab cov saib xyuas tsis tuaj yeem siv ntau qhov chaw - lawv tau ua nyias li ua tsaug rau cov tshiab technologies. Tam sim no nws yog tsawg nyob rau hauv lub tsev uas koj tsis pom tus cwj pwm ntawm ntsiag to yav tsaus ntuj - LCD lossis LED TV . Thiab yog tias koj tsuas xav yuav nws, tej zaum koj muaj lus nug txog LCD lossis LED - dab tsi zoo dua? Cia peb xam nws.
LCD thiab LED TVs: qhov txawv
Nyob rau hauv qhov tseeb, qhov sib txawv ntawm LCD thiab LED yog heev me me. Ob qho tib si muaj feem xyuam rau cov cuab yeej niaj hnub, uas siv cov kua siv lead ua kua, uas muaj ob daim hlau. Nruab nrab ntawm lawv muaj cov kua qaub, hloov lawv txoj hauj lwm nyob rau hauv tus ntawm ib qho hluav taws xob tam sim no. Thaum siv cov ntxaij lim dej tshwj xeeb thiab kev teeb ntsa, qhov chaw ci thiab ci ntsa iab pom hauv qhov chaw ntawm lub cim. Yog tias koj siv cov ntxaij lim dej tom qab hauv matrix, ib daim duab xim tshwm ntawm qhov screen. Dab tsi yog kev siv nrig - qhov no yog raws nraim li lub LCD txawv ntawm LED.
LCD ntsuas los yog televisions siv tig nrig nrog lub teeb cathode fluorescent roj teeb nyob rau hauv cathode-txoj kab hluav taws xob. Lawv muaj nyob rau hauv daim ntawv teev npe qoob loo. Nyob rau hauv cov ntaub ntawv no, lub teeb nyob rau hauv lub LCD yog tas li on, thiab vim hais tias cov kua siv lead ua lub teeb tsis tuaj yeem tsaus muag lub teeb tag nrho, ntawm qhov screen dub xim peb pom ib qhov tsaus dub.
LED tsom xam pom tau tias yeej yog ib lub pob ntawm LCD, tiam sis lawv siv ntau yam ntawm illumination - LED. Nyob rau hauv rooj plaub no, cov LEDs nyob sab nraud lossis ncaj nraim rau qhov ntau loj. Txij li nws yog ua tau kom tswj tau lawv, uas yog, kom tsaus nti los yog taws teeb pom kev zoo, qhov sib txawv ntawm cov duab ntawm LED ntsuas los yog TV teeb pom deb tshaj qhov sib txawv ntawm cov LCD. Ntxiv mus, zoo rendering xim: koj tuaj yeem saib koj cov yeeb yaj kiab nyiam thiab cov kev pab cuam tsis muaj teeb meem. Los ntawm txoj kev, cov xim dub yeej hloov tawm tob.
Qhov sib txawv ntawm LCD thiab LED yog qhov tseeb tias yav tas los lub hwj chim noj qis dua. Ua tsaug rau LED backlight, lub zog noj ntawm TV thiab tus saib xyuas yog txo kom tsawg dua 40% piv rau LCD. Thiab cov duab ntawm no tsis raug kev txom nyem!
LED TVs thiab LCD kev sib piv nyob rau hauv cov thickness. Kev siv cov LEDs pub rau cov khoom siv ultra-nyias LED 2.5 cm tuab.
Tab sis qhov zoo ntawm cov LCD devices seem lawv prevalence thiab pheej yig dua piv nrog LED.