Dab tsi yuav tsum tau them sai sai rau thaum siv LCD npo:
1, refresh tus nqi
Refresh zaus yog qhov ntsug scanning zaus (tej zaus) ntawm cov zaub. Nws hais txog tus naj npawb ntawm lub sij hawm cov phom electron scans tag nrho cov tshuaj ntsuam ib ob, nyob rau hauv Hz (hertz). Rau CRT saib, cov duab tso tawm ntawm CRT saib yog tsim los ntawm ntau cov phosphor dots. Txhua phosphor dot emits lub teeb nyob rau hauv kev cuam tshuam ntawm ib tug electron beam. Txawm li cas los xij, lub sijhawm rau cov phosphor dots kom tawm lub teeb yog luv heev, yog li yuav tsum muaj cov kab hluav taws xob tsis tu ncua. Phosphors yog siv los ua kom nws ci tsis tu ncua, thiab tsuas yog thaum nws rov qab sai txaus tuaj yeem pom cov duab txuas ntxiv thiab ruaj khov dua, yuav tsis hnov qhov flickering thiab jitter ntawm daim duab, thiab lub qhov muag yuav tsis yooj yim rau qaug zog. Yog li ntawd, qhov refresh npaum li cas ntawm CRT zaub tsis qis dua 85Hz ntawm cov kev daws teeb meem cuam tshuam kom tib neeg saib zoo dua.
2, tus naj npawb ntawm cov xim
Raws li koj txhua tus paub, tam sim no lub ntsiab CRT xim saib xyuas tag nrho cov kev txhawb nqa 32- xim tseeb, tab sis tsis yog txhua lub LCDs. Tam sim no, feem ntau nkag-theem LCDs ntawm kev ua lag luam siv 6-ntsis LCD vaj huam sib luag, uas tsuas tuaj yeem tso saib 262144 xim (64 × 64 × 64=262144), thaum tsuas yog 8-ntsis vaj huam sib luag tuaj yeem tso saib 16777216 xim (256 × 256 × 256=16777216).
Yog li ntawd, thaum kho qhov nkag-theem LCD nrog 6-ntsis vaj huam sib luag, cov zaub "xim" tuaj yeem hloov kho rau "hloov xim (16- ntsis)" kom tau raws li qhov xav tau, kom tsis txhob muaj daim npav video hu ntau dua. nco los txhawb cov xim siab, uas yuav ua rau khib nyiab.
3, saib lub kaum sab xis
Lub kaum sab xis saib ntawm cov zaub yog hais txog lub kaum sab xis siab tshaj plaws uas txhua cov ntsiab lus ntawm lub vijtsam tuaj yeem pom meej los ntawm cov lus qhia sib txawv. Qhov pom lub kaum ntse ntse ntawm CRT zaub tuaj yeem ua qhov kev xav tau ze rau 180 degrees nce thiab nqis / sab laug thiab sab xis. Txij li thaum LCD siv lub teeb xa mus rau cov duab, qhov pom lub kaum ntse ntse ntawm LCD yog me dua li ntawm CRT cov lus qhia-hauv LCD, lub teeb ncaj qha thiab oblique yuav nkag mus rau cov pixels hauv tib cheeb tsam, yog li los ntawm lub kaum sab xis ntau dua qhov pom thaum koj saib ntawm qhov screen, koj yuav pom tias cov duab muaj ghosting thiab discoloration.
Kab rov tav (sab laug thiab sab xis) saib lub kaum sab xis ntawm cov kua siv lead ua kua tso rau hauv kev ua lag luam feem ntau yog siab dua 120 degrees, thaum lub ntsug (nce thiab nqis) saib lub kaum sab xis me me, feem ntau siab dua 100 degrees. Txhawm rau kom tau txais lub kaum sab xis pom zoo dua hauv kev siv, ntxiv rau kev kho lub ntsej muag zaum lossis lub kaum sab xis ntawm cov zaub kom fim LCD ntau li ntau tau, qhov ci ntsa iab ntawm LCD tuaj yeem tsim nyog ntxiv, uas tuaj yeem ua kom pom qhov pom ntau tshaj plaws. lub kaum sab xis ntawm lub LCD.
4, lub sijhawm teb
Lub sij hawm teb lub teeb liab yog cov lus teb qeeb ntawm cov kua siv lead ua kua cell ntawm cov kua siv lead ua kua zaub. Nws yog hais txog lub sij hawm uas yuav tsum tau rau cov kua siv lead ua kua cell hloov los ntawm ib lub xeev kev npaj molecular mus rau lwm lub molecular arrangement xeev, uas yog, qhov ceev ntawm qhov screen hloov los ntawm tsaus mus rau ci los yog los ntawm kaj mus rau tsaus. Lub sij hawm teb yog luv li sai tau. Nws qhia txog qhov ceev ntawm txhua pixel ntawm cov kua siv lead ua kua ua rau cov teeb liab tawm tswv yim. Feem ntau, lub sij hawm teb tau muab faib ua ob ntu: lub sij hawm sawv thiab lub caij nplooj zeeg. Cov sum ntawm cov yuav yeej, tsis yog ib txoj kev.
5. Kev daws teeb meem
Tsuav yog cov kab ntau zaus thiab bandwidth txaus, cov tshuaj CRT tsoos saib feem ntau tuaj yeem txhawb nqa puv npo thiab ruaj khov ntawm txhua daim duab hauv qhov kev daws teeb meem nws txhawb nqa. Cov pixels ntawm LCD yog tsau, yog li lub LCD tsuas muaj qhov kev daws teeb meem zoo tshaj plaws (qhov siab tshaj plaws daws teeb meem, qhov kev daws teeb meem zoo tshaj plaws ntawm 15-inch LCD yog 1024 × 768, qhov kev daws teeb meem zoo tshaj plaws ntawm 17-19} ntiv tes feem ntau yog 1280 × 1024) Txhawm rau kom pom cov duab zoo tshaj plaws.
6, point defect
CRT cov lus qhia yeej tsis muaj qhov screen "point defects", thaum lub "point defects (xws li tuag los yog tsaus dots, ci me ntsis)" ntawm cov kua siv lead ua kua tau muaj txij li thaum yug los ntawm cov kua muaju. Lub npe hu ua qhov tsis xws luag ntawm LCD yog tias qee qhov pixel hauv cov kua siv lead ua kua ua kom puas, thiab muaj cov pixel tuag uas tseem ci ntsa iab, tsis ci lossis xim ib leeg, thiab tsis lees txais cov teeb liab tua.
Txhawm rau kom tsis txhob muaj qhov tsis xws luag hauv kev siv, peb qhov tseem ceeb yuav tsum tau them rau: ① Tsis txhob kov lossis tsoo lub vijtsam LCD nrog cov khoom tawv. ② Tsis txhob muaj kev vibration thaum siv lossis tsheb thauj mus los. ③ Tsim kom muaj tus cwj pwm zoo ntawm kev tua lub tshuab thaum koj tsis siv lub LCD.
