Tsev > Exhibition > Ntsiab lus

Imaging txuj ci ntawm LCD npo

Sep 23, 2017

Cov kua siv lead ua substrate yog ua ob daim iav ua cov substrates, thiab qhov loj ntawm cov iav ca yog tsim raws li qhov luaj li cas ntawm qhov screen, thiab ob lub iav substrates yog ua rau hauv lub tiaj tiaj tiaj, nyob rau ntawm lub thawv ntim nrog TN hom kua siv lead ua kua. LCD TV nrog nematic kua siv lead ua kua molecules muaj nyob rau hauv cov kev taw qhia ntawm hluav taws xob, sib nqus teb thiab kev hloov pauv, nrog nruj sij hawm tswj tshuab los tswj cov kua siv lead ua kua molecules ntawm qhov screen kom tau tes taws xob ntawm lub teeb nrig, thiab ntawm qhov screen thiab tsaus los yog dhau los thiab dhau los, thiab tom qab ntawd los ntawm cov xim yeeb yaj kiab ntawm RGB pixels, ces siv qhov muag ntawm qhov muag, los tso saib cov duab xim sib tov. Txhua daim duab ntawm lub vijtsam sab nrauv yuav tsum ywj siab txog kev tswj fais fab, sib txawv pixels raws li kev tsav tsheb "kev hais kom ua" nyob rau hauv cov yeeb yaj duab, cov zauv lossis cov duab ntawm qhov screen, xa cov lus qhia no thiab tswj cov lus qhia TCON tswj lub rooj tsav, circuit nyob rau hauv cov kev coj ntawm kev txiav txim ua ntej thiab tom qab iav substrate. Tus Circuit Court zoo ib yam li qhov daws teeb meem ntawm qhov screen. Lub ntsej muag daws teeb meem yog 1024x768 screen, txhais tau hais tias qhov screen ntawm sab saum toj mus rau hauv qab yog faib ua 768 kab, txhua kab muaj 1024 pixels, txhua pixel muaj RGB sub pixels, yog li tag nrho 3072 sub pixels, ua 3072 zaj duab xis TFT, txhua tus pixel txhais raws li RGBRGB-- ib theem zuj zus thiab tswj kev kho. A 1024x768 npo, nyob rau nraum qab iav substrate, ua 1024 x 768 x 3 TFT hlab. Kev tsim lub tswv yim yog: ua ntej tom qab lub substrate hauv iav substrate, transparent electrode raws li qib, tis ntawm pixel ntsug insulated los ntawm txhua lwm, thiab ces ua TFT transistor hlwg ntawv nyob rau hauv kab rov tav thiab txoj kab, kev teeb liab ntawm lub teeb liab electrode thiab txhua qhov TFT Twj G cov zis thiab TCON board txuas nrog, S nrog cov zis TCON sawv cev ntawm 1 daim duab RGB thaum thau pixel electrode txuas nrog tswj teeb liab, D txuas nrog lub substrate. Ib plurality ntawm cov electrodes pob tshab yog ua nyob rau ntawm lub khob iav hauv ntej los ntawm pixel tis ntawm lub khob iav substrate lub rooj tsavxwm, tab sis cov electrodes muaj qhov tib qhov hluav taws xob li VCOM, uas yog siv los ua ib qho hluav taws xob. Lub xim lim xim xim txheej nyob rau sab xub ntiag ntawm iav substrate yog teem rau hauv sub-pixel tshiab ntawm RGB. Thaum lub TFT ntawm G thiab S cov teeb meem sib ntsib, qhov sib haum TFT yeeb nkab ua haujlwm, S qhov hluav taws xob hauv D, thiab nrog qhov sib txeeb rau iav substrate rau cov pa roj carbon monoxide voltage qhov sib txawv, sib thooj rau cov kua siv lead ua kua hauv cov hluav taws xob thiab kauv, dawb lub teeb los ntawm cov khoom siv kho qhov muag thiab cov kua siv lead ua kua los ntawm cov xim xim tsim cov xim liab lossis ntsuab lossis xiav teeb emitting dots, vim tias 768 qib mem tes txav ceev thiab cov 3072 electrode ua haujlwm ntau dhau, thiab RGB lub teeb, me me, tsawg kev sib cav hauv qhov muag pom tau qhov sib txawv ntawm cov xim, sib sau duab xim hauv lub hlwb. Lub circuits uas muab G G thiab qhov chaw S tsav cov cim yog hu ua rooj vag thiab qhov chaw khiav dej num, feem. Lub rooj vag thiab qhov drive tsav yog siv los khi cov tsav IC rau ib lub yeeb yaj kiab zaj duab xis siv thiab mam li sau rau ITO hlau ntawm npo substrate (tseem hu ua COF connector) nrog rau kev luam ntawv. Feem ntau, qhov chaw tsav tsheb muaj ntau yam COF, xws li 1024x768 npo, yog tias ib qhov chaw tsav tsheb COF tuaj yeem tso tawm 384 electrode tsav teeb liab, koj yuav tsum tau muaj 8 tus neeg tsav tsheb ua COF.

Daim duab hauv qab no qhia txog cov qauv siv lead ua kua qauv.

1024x768 daws teeb meem, qhov screen ntawm daim duab no, TCON pawg thawj coj saib yuav ua li cas?

Cov duab no peb tau pom, lub sij hawm yog txog Is, TCON lub rooj tsav tsheb los tsav cov duab tsim tshuaj yog rov ua dua 60 lub sij hawm nyob rau lub sijhawm luv luv (xa mus rau tus nqi ntawm 60Hz), thiab 1/60 lub sij hawm qhov tshwm sim ntawm tus ncej, lub sij hawm yog 16.67ms, lub sij hawm no nyob rau hauv lub rooj sib tham tsav Circuit Court thiaj li xa 768 scan mem tes mus rau G electrode ntawm TFT raj, txhua kab ntawm lub sij hawm ntawm 16.67ms / 768 = 21.7 s (ie zaus yog 46kHz). Tib lub sij hawm, TCON kuj tawm ntawm 3072 cov kab ntawm RGB tso tawm ntawm lub voj voog khiav ntawm TFT tube S electrode thaum lub sij hawm xa tawm ib kab xuab zeb rau tag nrho 21.7 s zaug. RGB tsav teeb liab raug txo kom mus txog S lub teeb liab tsav ntawm lub npov TFT ntawm kev tsav tsheb los ntawm kev lwj siab ntawm cov duab hauv TV los ntawm lub rooj sib tw logic. Tus neeg tsav tsheb tau them tus nqi tseem ceeb ntawm cov pixels rau txhua qhov ntawm cov khoom siv uas yuav tsum tau ua kom pom cov grey sib txawv. Thaum cov kab no them, tus tsav scan pib pib ntawm cov kab pib ntawm cov luam tawm ntawm kev luam, thiab ib yam li, S lub tshuab electrode tsis tu ncua lub RGB teeb liab, uas qhib ob kab ntawm sub pixels, kom nws mus txog rau thaum kawg kab yog lit. Yog li, cov kua siv lead ua kua yog vim lub npov TFT, qhov muag teeb los ntawm cov kua siv lead ua kua thiab lim cov duab yeeb yaj kiab hauv daim ntawv ntawm ntau qhov chaw RGB rau daim duab. Cov kua nplaum hluav taws lub teeb tuaj ntawm no los ntawm kev hloov.

Los ntawm cov lus piav qhia ntawm cov kua tshuaj ntxuav saum toj no, nws yog pom tseeb tias cov qauv siv ntawm LCD xov tooj, cov vijtsam screen, TV tshooj, tshuab xam zauv thiab lwm yam zoo sib xws. Lub LCD kev xav tau kev txhawb nqa ntawm ob txoj kev loj loj, ib qho yog muab qhov teeb pom kev zoo, qhov ob yog TCON lub rooj tsavxwm thiab kev tshuaj ntsuam, thiab qhov chaw tsav tsheb. TCON tus thawj tswj hwm muaj qhov teeb meem kev xa tawm thiab cov xov xwm cov ntawv qhia rau lub rooj vag thiab qhov chaw khiav dej num, thiab tswj cov teeb liab rau cov rooj vag ntau qhov, qhov chaw, thiab tsav cov tsav.

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