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TFT LCD Screen xwb

TFT LCD Screen xwb

Jan 17, 2017

Peb tham txog txujci TFT, TFT no andquot; Nyias zaj duab xis Transistorandquot; tsiaj ntawv, feem ntau hais txog cov lus siv lead ua kua nyias zaj duab xis, thiab ua tau zej nyias-zaj duab xis transistors (matrix)-yuav tsum andquot; activeandquot; tswj tus pixels ntawm qhov screen, qhov no yog qhov sib dhia-matrix TFT (dhia matrix TFT) tuaj ua. Npaum li cas rau lub ntuj lub teb puas tau tus duab tuaj? Tso yooj yim yog tej yam yooj yim: tshuaj ntsuam ntau pixels yuav ua yam xim sib, thiab kom ntev li tswj cov xim txhua pixel tso saib yuav cuag lawv lub hom phiaj. Feem siv tshuab backlight TFT LCD, rau leej tswj txhua pixel xim thiab brightness yuav tau mus ntsia tom qab txhua pixel ib shutter-zoo li mus, thaum andquot; shutter openandquot; lub teeb yuav tuaj txog, thiab andquot; Shutterandquot; xu siab kaj tom qab nws tuaj tsis yog. Kiag, technically no yeej tsis kom yooj yooj yim li cia li hais kom muaj kev. LCD (siv lead ua kua zaub) yog siv cov khoom ntawm tus siv lead ua kua (kua thaum diav, crystalline tau thaum txias), cov LCD muaj peb hom:

Txheej av nplaum zoo li ua npaws (Smectic) LCD
Zoo zoo matchsticks ntawm (Nematic) filiform LCD
Zoo xws li cov roj uas txhaws taus (Cholestic) LCD
Raws li tus cai hais TFT thiab LCD saib filamentous, thaum muaj kev hloov hauv cov cheeb tsam lwm yuav kuj hloov nws molecular qauv, uas muaj ntau lub zog – youand #39; dhau cuag teeb los nres lub teeb muaj hom phiaj--ntawd ces yog ib yam li ntxaij thaiv blinds.

Koj paub hais tias qhov peb lub tsev xim, kom txhua pixel xav peb zoo xws li cov saum no yog qho screen roos lub Cheebtsam sau, ntawm lwm yam uas peb xim liab, ntsuab thiab xiav, feem.

Tam sim no tshaj siv cov nematic TFT siv lead ua kua zaub (cov Nematic TFT LCD), daim duab hauv qab no qhia txog qhov ua hauj lwm tso ntawm no TFT saib. Muaj yees sib txawv lug, peb yuav tau detail rau lwm cov khoom.

Nyob rau sab sauv thiab sab grooves ntawm ob cov khaubncaws sab nraud povtseg, uas lub Groove sab sauv yog ntsug, hos cov theem sab yog nyob hauv txoj. Thaum cov theem sab yog nyob rau hauv kab rov tav. Thaum cov applied voltage kua siv lead ua nyob rau hauv ib lub xeev ntuj, tawm hauv daim duab glowing 2a cov nematic TFT saib kos duab schematic txheej kis lawm ciali mus nyuaj tom qab, twist 90-kawm ntawv yuav tshwm sim tau, uas yuav txo tau ib tug du txaus.

Tom qab voltage ntawm cov khaubncaws sab nraud povtseg ob, nws generates ib daim teb electric LCD cov txheej txheem ntawm mas, ces ciali yuav tsis nraud-qhov no yog tias lub teeb yuav tsis kis.