Ib qho teeb meem nrog cov qub CRT saib, dhau sijhawm, yog qhov mob hu ua hlawv-hauv. Qhov tshwm sim no tau ua rau muaj kev cuam tshuam ntawm cov duab mus rau cov zaub uas nyob mus ib txhis, tshwm sim los ntawm qhov tsis tu ncua ntawm ib daim duab ntawm qhov screen rau ncua sij hawm. Kev tawg ntawm phosphors ntawm CRT ua rau cov duab raug hlawv rau hauv lub vijtsam, yog li lub sijhawm. Puas muaj ib yam li LCD npo hlawv-hauv?
Dab tsi yog Kev Ua Phem Txhaum Cai?
LCD saib siv lwm txoj hauv kev los tsim cov duab ntawm lub vijtsam thiab tiv thaiv qhov tshwm sim kub hnyiab. Tsis yog phosphors tsim lub teeb thiab xim, lub LCD siv lub teeb dawb tom qab lub vijtsam nrog cov polarizers thiab crystals lim lub teeb rau cov xim tshwj xeeb. Thaum LCDs tsis raug cuam tshuam rau qhov kub hnyiab-zoo ib yam li CRT saib, LCDs raug kev txom nyem los ntawm cov tuam txhab hu ua duab persistence.
Zoo li qhov kub hnyiab ntawm CRTs, cov duab tsis tu ncua ntawm LCD saib yog tshwm sim los ntawm kev ua kom pom tsis tu ncua ntawm cov duab zoo li qub ntawm lub vijtsam rau lub sijhawm txuas ntxiv. Cov duab zoo li qub rau lub sijhawm ntev ua rau cov pob zeb LCD tsim lub cim xeeb rau lawv qhov chaw los tsim cov xim ntawm cov duab ntawd. Thaum muaj xim sib txawv tshwm sim hauv qhov chaw ntawd, cov xim yuav tawm thiab yuav pom cov duab tsaus ntawm qhov tau tshwm sim yav dhau los.
Qhov kev pheej hmoo yog qhov tshwm sim ntawm qhov ua tau zoo li cas hauv cov duab ua haujlwm. Cov crystals txav los ntawm ib txoj hauj lwm tso cai rau tag nrho lub teeb mus rau ib qho uas tsis tso cai. Nws yuav luag zoo li lub qhov rooj ntawm lub qhov rais. Thaum lub vijtsam tso tawm cov duab rau lub sijhawm ntev heev, cov muaju tuaj yeem hloov mus rau ib txoj haujlwm tshwj xeeb. Nws yuav hloov me ntsis los hloov cov xim, tab sis tsis yog tag nrho, uas ua rau muaj cov duab uas tsis yog qhov xav tau.
Qhov teeb meem no feem ntau tshwm sim rau cov ntsiab lus ntawm cov zaub uas tsis hloov pauv. Cov khoom uas zoo li yuav tsim cov duab tsis tu ncua yog lub chaw ua haujlwm, lub cim duab duab, thiab cov duab tom qab. Cov no zoo li zoo li qub hauv lawv qhov chaw thiab tso tawm ntawm qhov screen rau lub sijhawm ntev. Thaum lwm cov duab thauj khoom hla cov chaw no, tej zaum nws yuav tuaj yeem pom cov duab faint lossis duab ntawm daim duab dhau los.
kab hauv qab
Feem ntau, tsis muaj. Cov crystals muaj lub xeev ntuj thiab tuaj yeem hloov pauv nyob ntawm qhov siv tam sim no los tsim cov xim uas xav tau. Tsuav cov xim no hloov ib ntus, cov muaju ntawm qhov pixel yuav tsum hloov pauv txaus, yog li cov duab tsis imprint rau hauv cov muaju mus tas li. Txawm li cas los xij, yog tias lub vijtsam ib txwm nyob ntawm daim duab uas tsis hloov pauv, cov muaju tuaj yeem tau txais lub cim xeeb ruaj khov.
Nws Puas Tiv Thaiv lossis Kho?
Duab persistence ntawm cov ntxaij vab tshaus LCD tuaj yeem kho tau nyob rau hauv feem ntau thiab tiv thaiv tau yooj yim.
- Teem lub vijtsam kom kaw tom qab ob peb feeb ntawm lub sijhawm tsis ua haujlwm. Tig tawm cov duab saib tiv thaiv cov duab tsis tshwm rau lub sijhawm ntev. Kev teeb tsa lub monitor ua qhov no thaum lub computer tsis ua haujlwm li 15 txog 30 feeb tuaj yeem ua qhov txawv. Cov txiaj ntsig no tshwm sim hauv Mac Energy Saver nqis lossis Windows Power Management.
- Siv Windows screen saver lossis Mac screen saver uas tig, muaj cov duab txav, lossis tsis muaj.
- Tig txhua cov duab tom qab ntawm lub desktop. Cov duab hauv qab yog ib qho ua rau cov duab tsis tu ncua. Los ntawm kev hloov keeb kwm yav dhau los txhua hnub lossis ob peb hnub, koj yuav txo qhov kev pheej hmoo ntawm kev pheej hmoo.
- Xaiv lub saib thaum lub kaw lus tsis siv.
Kho cov duab persistence
Siv cov khoom no tuaj yeem tiv thaiv qhov teeb meem tsis tu ncua ntawm cov duab los ntawm kev cog qoob loo ntawm lub monitor. Yog tias tus saib pom cov teeb meem tsis tu ncua, ntawm no yog ob peb kauj ruam uas tuaj yeem siv los kho nws:
- Tig lub saib rau lub sijhawm txuas ntxiv.
- Siv lub vijtsam txuag nrog cov duab tig thiab ua haujlwm rau lub sijhawm ntev. Lub rotating xim palette yuav tsum tshem tawm cov duab tsis tu ncua. Txawm li cas los xij, nws yuav siv sij hawm ib pliag kom tshem tawm.
- Khiav lub vijtsam nrog ib qho xim xim lossis ci dawb rau lub sijhawm txuas ntxiv kom yuam cov muaju kom rov pib dua ntawm ib qho xim xim.
