Thaum koj yuav lub TV LCD, koj tuaj yeem tau txais cov ntawv luam nrog cov pixels tuag ntawm qhov screen. Xa rov qab li TV mus rau tom khw yuav tsis yooj yim. Yog li ntawd, nws yog qhov tseem ceeb kom paub yuav ua li cas los kuaj xyuas koj lub TV rau cov pixels ploj tuag ua ntej kev yuav khoom.
Ib lub xaim xaim yog lub cell muab kev koom rau hauv kev tsim cov duab ntawm lub vijtsam. Lub ntsiab pixel muaj peb subpixels: ntsuab, liab thiab xiav. Los ntawm kev sib txuas cov xim no, koj tuaj yeem ua tiav cov xim sib txawv thiab cov xim.
Thaum qhov matrix hauv kev ua haujlwm zoo, daim duab ntawm lub vijtsam yog dawb los ntawm kev tsis xws luag. Yog tias muaj pixel lossis transistor uas tswj hwm nws puas ntsoog, qhov tsis xws luag tshwm sim, uas yog hu ua "pixel tawg".
Cov tawg xiab tsis yog hlawv thiab hlawv. Lub pixel tsis-hlawv pom zoo li qhov taw tes dub. Ib lub teeb pixel glows dawb tsis tu ncua. Lawv tshwm sim tiv thaiv ib yam tom qab. Lwm qhov tsis xws luag yog tawg lossis "daig" subpixel. Nws ua tau nws tus kheej los ntawm kev ci hauv ib qho ntawm cov xim - xiav, ntsuab lossis liab.
Vim li cas khij lub TV rau cov pixels ploj
Lub xub ntiag ntawm cov neeg tuag pixels tsis cuam tshuam rau kev ua tau zoo ntawm TV. Feem ntau cov neeg tsim khoom tso cai qee qhov muaj qhov tsis xws ntawm pixels ntawm lub vijtsam. Qhov nyiaj no nyob ntawm chav soj ntsuam thiab feem ntau yog qhia hauv cov ntaub ntawv warranty.
Yog tias koj tsis kuaj lub LCD TV thaum yuav thiab tsuas yog nyob hauv tsev kom paub tias muaj cov pixels tuag, nws yuav nyuaj heev kom rov qab cov cuab yeej ntawd mus rau tom lub khw. Yog tias lawv cov naj npawb tsis dhau qhov kev cai tsim los ntawm cov neeg tsim khoom, TV yuav tsis raug lees hauv lub chaw pabcuam.
Lub tuam txhab tsim khoom tsis xav txog qhov no yuav yog kev ua tsis zoo lossis tawg. Rov qab ntawm cov pixels tuag yog tsis yooj yim sua nyob rau hauv Feem ntau. Yog li, kuaj lub TV ncaj qha hauv lub khw, qhov twg koj tuaj yeem tsis kam lees yuav yog tias koj pom qhov tsis meej.
Yuav ua li cas thiaj pom cov pixels tuag
Kuaj rau cov tuag pixels yog zoo nkauj ncaj. Vim tias cov xaum faulty pixels muaj cov xim zoo ib yam, lawv qhia tau zoo tiv thaiv qhov sib txawv ntawm keeb kwm yav dhau los. Koj yuav tsum tau tso ua kom pom ntau xim xim kom tiav.
Yuav ua li cas yuav ua rau nws? Nws raug nquahu kom txuas lub TV rau lub khoos phis tawm lossis lub laptop. Qhov no yuav tso cai rau koj siv cov kev pabcuam tshwjxeeb los kuaj cov saib thiab TV. Ntxiv nrog rau kev tshuaj xyuas cov pixels tuag, cov kev pab cuam no yuav tso cai koj los txheeb ib tus lej ntawm lwm cov tsis tseem ceeb. Cov kev kawm nrov tshaj plaws rau lub hom phiaj no yog TFTTest.
Tsis yog txhua lub khw yuav ntsib koj ib nrab thiab muab computer rau koj. Koj tuaj yeem ua tau nqa koj lub laptop. Tab sis yog tias TV hom qauv uas koj tau xaiv tau nruab nrog lub USB interface, nws txaus los coj USB flash drive nrog koj. Sau cov vis dis aus rau nws nrog kev hloov pauv ntawm cov xim xav tau lossis tsuas yog cov duab nrog sau cov xim sib txawv.
Txuas tus tsav mus rau koj lub TV thiab pib lub vis dis aus lossis duab saib. Xws li cov xim sib txawv yog rov ua dua qhov qub, ua tib zoo tshuaj xyuas txhua thaj chaw. Cov tawg pixels, yog tias muaj, yuav qhia lawv tus kheej raws li cov kab sib piv.
