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Kev paub txog LCD LCD screen

Kev paub txog LCD LCD screen

Aug 11, 2017

Peb hom loj: duab ntxaij lim dej, cim ntxaib, cim ntiv nplhaib, npog TN, HTN, STN, FSTN, CSTN tsib hom yeeb yam; fusion ntawm COG, COF, TAB, COB, SMT thiab lwm cov qauv ntaub ntawv

1.TN movie hom LCD npo

Segment LCD, LCD zaub yog hom ib hom, LCD LCD kos mem tes hom thiab teev ob hom, los paub tias yog tus cwj mem tawm ntawm tus lej tau tshwm sim los ntawm 8 lo lus, 8 lo lus muaj li 7 theem, tuaj yeem tso saib 0 ~ 9 digital. Xws li lub laij lej, cov xuvtooj hab lub nraa rua, yog cov dluab kws qha. Cov kua siv lead ua kua, cov txheej txheem yooj yim ntau dua hauv matrix, tab sis kuj tsuas pom cov ntsiab lus yooj yim xwb. Ib qho kua siv ua kua tshuaj ntxoo suav cov cim thiab cov duab kos, tuaj yeem pom tshwm nyob rau hauv lub hom ruaj khov, cov raug hloov. Thiab cov teev matrix rau tag nrho. Nws yog ua tau kom hloov.


2. HTN hom LCD npo

HTN (Highly twisted nematic) Nematic kua siv lead ua kua molecules yog qhwv ntsej muag ntawm ob lub iav, thiab nruab nrab ntawm ob cov khaubncaws sab nraud povtseg ntawm iav, cov qauv ntawm cov kua siv lead ua kua molecule deflects 110 ~ 130 degrees. Tus cwj pwm ntawm cov hom LCD yog tias qhov kev tsav tsheb ntawm kev tsav tsheb tsis zoo txaus, tab sis lub kaum sab xis pom yog wider dua li TN hom.Features: siab zoo, tsis muaj zog noj, tsis tsav tsheb tsawg.

3. STN zaj duab xis hom LCD duab STN (Super Twisted Nematic) yog siv cov kua siv lead ua kua hauv lub fais fab raws li 180 degree saum qhov kev txhim kho kom thiaj li hloov qhov kev kho distortion, thov siv hluav taws xob los ntawm kev ntsuas kev hloov pauv hauv kev hloov fais fab teb, pheej hloov qhov voltage ntawm txhua tus taw tes ntawm txoj kev ua haujlwm rov qab qeeb qeeb, ua rau muaj kev kub ntxhov tom qab. Nws muaj lub hwj chim kom zoo dua qub thiab qhov loj tshaj plaws ntawm lub hwj chim tiv thaiv. Xim STN zaub tso cai yog ntxiv cov xim xim hauv cov xim STN monochrome kua tshuaj, thiab cov duab matrix uas txhua lub pixel faib rau peb sab pixels, feem ntawm cov ntxaij lim dej kom pom cov xim liab, ntsuab thiab xiav xim, koj tuaj yeem ua yeeb yam duab. Tsis zoo li TFT, STN belongs rau passive Passive type LCD, uas feem ntau qhia 65536 xim thaum nws siab tshaj. Tau muab faib ua qhov sib txawv hauv STN, FSTN, CSTN thiab DSTN. Ordinary STN hauv plhaub ua kua ntxaij lim dej 180 ~ 270, LCD npo nrog cov npau suav uas zoo tib yam, vim hais tias qhov kev faib tawm, LCD npo yuav qhia xim tom qab, muaj xim daj lossis xiav, feem ntau hu ua Huang Lvmo lossis xiav pwm. FSTN (Zaj duab xis + STN), txhawm rau txhim kho tom qab xim ntawm STN tus cwj pwm, ntxiv ib zaj duab xis them nyiaj rau lub polarizer tau tshem tawm cov dispersion thiab paub cov xim dub thiab dawb.

4.CSTN (xim STN )

Xim STN, raws li tshuab FSTN, ntxiv ib txheej ntawm RGB xim zaj duab xis, xim xim, dav dav txoj kev siab. DSTN (ob chav STN), ob npaug STN, ib txheej tsav txheej, ib txheej txheej ntawm cov nyiaj them poob haujlwm, uas belongs rau cov dub thiab dawb STN tshuab, piv nrog FSTN, zoo dua qhov sib txawv, thiab yuav txawv ntawm kev them nqi zog dispersion, siab zoo, ntau. Lub hauv paus ntsiab lus ntawm cov qauv STN yog zoo li TN. Qhov txawv yog tias TN cov nplaim nematic kua kua qaub ua qauv tig cov teeb meem los ntawm 90 degrees, thaum STN super twisted nematic nyhuv yog tig qhov teeb meem teeb 180 ~ 270 degrees. Qhia txog ntawm no, yooj yim TN LCD nws tus kheej tsuas yog ob leeg ntawm lub teeb thiab tsaus (lossis xim dub thiab dawb), thiab tsis muaj ib txoj hauv kev hloov xim. Tab sis yog hais tias nyob rau hauv cov qauv STN monochrome LCD nrog xim xim (xim lim), thiab monochrome cov duab matrix ntawm txhua lub pixel (pixel) muab faib ua peb sab pixels (sub-pixel), feem ntawm cov xim lim pom xim liab, ntsuab thiab xim xiav, thiab tom qab ntawd los ntawm qhov kev faib ua feem ntawm harmonic, kuj tuaj yeem pom xim xim. Tsis tas li ntawd, yog tias lub LCD npo loj, qhov sib npaug ntawm TN LCD yuav tsis zoo, tab sis qhov paub technology ntawm STN tuaj yeem ua rau tsis muaj qhov sib txawv.

5. CSTN movie hom LCD npo

Mobile ntaus nrog xim zaub, STN LCD rau ntawm cov kua siv lead ua kua molecules tsuas yog nce lub qhov ntswg xwb, tab sis qhov tseeb nws nyob deb ntawm rooj plaub, vim qhov nce ntawm txoj kab sib ntswg, ua rau lwm tus cwj pwm ntawm cov kua qaub, nyob pem lub taub hau kuv. Tom qab qhov teeb meem ntawm sab nraum lub teeb polarizing zaj duab xis mus rau ib txoj kab teeb duab ntxoo, tab sis los ntawm kev siv lub teeb ci hauv cov kua ua kua dej tsis yog tsuas yog cuam tshuam cov kev coj ntawm kev coj ua, tab sis yog muab faib ua ob kab teeb ci thiab qhov txawv ntawm lub teeb, ob kab teeb qhov tawm thaum lub cuam tshuam, uas ua rau lub STN LCD thaum tsis yog hluav taws xob yog ib txwm qhia ib qho xim (xws li xiav thiab ntsuab). Yog li, peb pom tau hais tias lub tso cai ntawm STN LCD thiab TN LCD yog fundamentally sib txawv, thiab nws yuav siv sij hawm zoo dua ntawm lub birefringence ntawm cov kua crystals. Yuav kom tshem tawm cov keeb kwm yav dhau LCD STN cov neeg xav tau ntau txoj kev, qhov nyuaj yog siv qhov txawv txav, tiam sis qhov kev hloov tig ntawm ob qho tib si STN LCD lub thawv ua ke, ob lub kab teeb meem cuam tshuam nrog lwm leej lwm tus thiab them rov qab txhua zaus, (DSTN), tiam sis tus nqi DSTN siab heev, yog li cov neeg xav simulate kua siv kua qaub cell nrog ib txheej ntawm cov kev hloov ntawm molecular iodine, ces siv ib txheej ntawm nyias zaj duab xis (theem qhov sib txawv ntawm cov phaj) uas siv cov kua qaub ntsuab, uas tso cov xim dub thiab dawb, uas hu ua FSTN (Zaj Duab Xis Yeeb Yam). Li ntawd, nyob deb, kuv tau hais tias cov dub thiab dawb lub xov tooj txawb xov tooj yog txhua hom FSTN. STN LCD yog tsi ntsej muag los ntawm kev saib dav dav dav thiab lub peev xwm loj loj, qhov teeb meem qeeb yog qhov qeeb, vim hais tias muaj ntau tsav ua rau qhov sib txawv ntawm STN yog qis dua li ntawm TN. Lub ntsiab lus ntawm STN LCD yog qhov peb hu CSTN (Color STN). Nws yog ib qho FSTN screen ntxiv rau ib txheej xim ntawm cov yeeb yaj kiab. Siv RGB peb pixels rau ib daim duab pixel. CSTN

Cov qauv siv yooj yim yog raws nraim li STN, yog li ntawd nws txais tag nrho cov txiaj ntsig zoo thiab tsis zoo ntawm STN LCD, thiab nws txoj kev qeeb qeeb yog nws qhov teeb meem. Tam sim no, siv cov xov tooj txawb Samsung UFB LCD yog ib lub CSTN, tab sis nyob hauv tag nrho cov kev ntsuam xyuas los ntawm tus nqi nce me ntsis, thiab mam li xam tus txawj tej yam ntxiv mus rau 65K siv xim interpolation, nws tseem yog ib qho CSTN, UFB, tsuas yog lub tswvyim ntawm Samsung. Tam sim no, ntau lub xov tooj txawb ntawm lub lag luam yog CSTN, tsuas qee tus xov tooj txawb xov tooj TFT siv LCD. Xws li GD88, N8, thiab T108.