LCD (Ua Kua Crystal zaub) duab muaj pom siv cov tshuaj photoinecricilities ntawm cov khoom siv ua kua crane. Nws txoj kev ua tiav yog txhawm rau siv cov kev cuam tshuam ntawm cov kua siv lead ua cov molecules ntawm lub teeb. Hauv qab no yog kev kuaj xyuas nws txoj haujlwm ua haujlwm:
1. Cov qauv theem pib
LCD cov lus qhia yog tsuas yog ua raws li cov tseem ceeb hauv qab no:
Backlight Module: muab lub teeb hluav taws xob tsis zoo (feem ntau coj lub teeb).
Polarizer: ob txheej, sab saud thiab qis dua, feem ntau yog ntawm kaum ntawm 90 degree (ntsug polarization).
Ua kua Crystal txheej: Ob lub iav substrates sandwich ib txheej ntawm cov kua siv lead ua kua crystal molecules.
Xim lim (CF): Ua rau lub koob thib peb tseem ceeb hues liab (r), ntsuab (thiab xiav (b).
2. Cov ntsiab lus tseem ceeb: kho qhov muag ntawm cov kua siv lead ua cov molecules
- Cov yam ntxwv ntawm cov kua siv lead ua:
Ua kua Crystal molecules pom cov koom haum. Cov kev ua yeeb yam molecule cov kev hloov pauv ntawm cov lus teb rau ib qho hluav taws xob sab nraud, hloov kho lub teeb.
- Thaum tsis muaj hluav taws xob teb:
Teeb tsa hauv cov kauv daim ntawv, ua kua Crystal Molecules yuav hloov pauv cov kev taw qhia polarization ntawm lub teeb los ntawm 90 degrees. Cov kua ua kua crystal txheej hloov cov kev taw qhia polarization tom qab dhau los ntawm cov polariser tom qab, li no tso cai rau ntawm tus polixeriser thiab tso rau lub pixel thiab tso rau lub pixel "ci ntsa iab".
- Thaum hluav taws xob teb tau thov:
Lub ntsuas hluav taws xob teeb tsa cov kua siv ua kua crystal molecules perpendicular mus rau lub khob substrate, yog li cov kev taw qhia polarization tsis muaj spins ntev dua. Vim tias cov qib siab thiab qis dua polarisers yog sib tshuam, lub teeb tsis tuaj yeem ntws los ntawm cov polariser tsis ntws, tawm hauv lub pixel "tsaus ntuj".
3. Workflow
Kauj ruam 1: Backlighting
Lub LED Backlight Module Emits Uniform Dawb Teeb, uas dhau los ua lub teeb polarized hauv ib qho kev taw qhia tom qab dhau los ntawm qis dua polarizer.
Kauj Ruam 2: Ua Kua Crystal Txheej Teeb Teeb Teeb
- Thaum lub pixel tsis muaj hwj chim:
Cov kua ua kua crystal molecules tau teem nyob rau hauv ib tug kauv, tig lub teeb polarization, kom nws tuaj yeem dhau los ntawm cov polarizer, thiab cov pixel ci.
- Thaum lub pixel muaj hwj chim:
Lub teb hluav taws xob ua rau cov ua kua crystal molecules sawv ntsug ncaj ncees, thiab nws tsis tuaj yeem hla dhau ntawm Polarizer, thiab Pixel tsaus ntuj nti.
Tus yuam sij: Los ntawm kev tswj hwm tus voltage ntawm txhua pixel (siv los ntawm kev sib ntswg ntawm cov kua crystal molecules tau hloov kho, yog li kev hloov pauv lub teeb (grayscale).
Kauj ruam 3: Kev lim xim rau xim thiab pixel kev kos duab
Txhua tus pixel tau tawg rau hauv peb sub-pixels: R, G, thiab B, uas sib haum rau cov xim liab, ntsuab, thiab xiav rau cov khoom siv xim.
Lub backlight mus dhau cov xim lim tom qab dhau los ntawm cov kua siv lead ua kua roj av; Muaj peb lub xim muaj xim sib xyaw ntawm cov khoom siv sib txawv (piv txwv, txiv kab ntxwv thaum RGB ci ci piv yog 1} 0%, thiab 0%) los tsim cov xim kawg.
Ib daim ntawv qhia tag nrho yog tsim los ntawm kev sib txuas cov xim ntawm Incumerion pixels.
4. Cov ntsiab lus tseem ceeb
- Tft Tsav Circuit Court:
Txhua sub-pixel sawv cev rau tft traessor, uas yog siv los ua kom meej meej tswj hwm lub zog, uas ua rau cov lus teb sai thiab kev daws teeb meem zoo.
- Saib lub kaum sab xis thiab ua kua crystal hom:
TN (Twisted Nematic): Cov lus teb nrawm tab sis me saib lub kaum sab xis me me, nquag hauv cov lus tshaj tawm.
IPS (Hauv dav hlau hloov mus): dav saib lub kaum ntse ntse, xim raug, haum rau kev tsim qauv.
VA (Ntsug Txheej Txheem): Zoo sib piv, tsim nyog rau suab thiab vis dis aus.
- Dynamic daim duab zaub:
Nruam rov ua haujlwm ntawm cov duab dynamic tau ua tiav los ntawm kev hloov nrawm nrawm ntawm lub xeev hluav taws xob ntawm cov pixels (xws li 60Hz lossis 144Hz).
Lub ntsiab
Tus txheej txheem tseem ceeb ntawm LCD zaub yog mus ntiav hluav taws xob ntawm cov txheej txheem ua kua Crystal Molecules, thiab muab cov roj lim kom haum rau tsim pixel ci thiab xim txawv. Txoj kev no, siv cov qauv kev tswj hwm hluav taws xob thiab tsim kho qhov hluav taws xob, hloov hluav taws xob ua rau cov duab uas tib neeg tuaj yeem pom. Nws lub teeb hnyav, tsis tshua muaj hluav taws xob, kev daws teeb meem zoo, thiab lwm yam zoo ua rau nws siv tau dav hauv TVS, khoos phis tawj, xov tooj ntawm tes, thiab lwm yam khoom siv.
