I. LCD TCON Tswj Board Txoj Cai
Lub Rooj Tswjhwm Saib TCON, tseem hu ua lub rooj tsavxwm logic lossis lub rooj tsavxwm tswj, yog ib qho tseem ceeb ntawm LCD (Liquid Crystal Display) system. Nws feem ntau muaj tsib lub circuits: Fais fab tswj Circuit Court, Timing Control Circuit, Gate Driver Circuit, Source Driver Circuit, thiab P-Gamma Circuit. TCON board muaj ob lub luag haujlwm tseem ceeb:
Kev hloov pauv teeb liab: Hloov cov duab teeb liab (xws li LVDS cov cim) tso tawm los ntawm TV motherboard's Scaler rau Mini-LVDS cov cim ua ntej tso tawm. Cov txheej txheem hloov dua siab tshiab no ua kom lub teeb liab sib xws nrog LCD vaj huam sib luag txoj cai tsav tsheb.
Teeb Pom Kev Pom Zoo thiab Tsav Tsheb: Hloov cov lus nkag LVDS cov duab teeb liab thiab lub moos teeb liab mus rau hauv cov npe ntawm cov cim ua haujlwm pom tau los ntawm Vaj Huam Sib Luag Gate Tsav Tsheb thiab Qhov Chaw Tsav Tsheb. Cov teeb liab no suav nrog cov lus qhia los hloov qhov twist ntawm cov kua siv lead ua kua molecules thiab luam theej duab lub rooj vag, yog li ua kom lub vaj huam sib luag zoo li qub.
II. Taw qhia rau ICs hauv TCON Board
Lub TCON pawg thawj coj ua ke nrog ntau yam kev sib koom ua ke (ICs), txhua qhov ua haujlwm sib txawv thiab ua haujlwm ua ke kom ua tiav cov haujlwm tseem ceeb ntawm TCON pawg thawj coj saib. Nov yog qee qhov ICs tseem ceeb thiab lawv txoj haujlwm:
Permanent Magnet IC: Lub luag haujlwm tsim ntau qhov voltages xav tau los ntawm Tus Tsav Tsheb, Qhov Chaw Tsav Tsheb, Qib Ua Haujlwm, thiab P-Gamma.
Piv txwv li, tom qab nkag 12V, IC no tuaj yeem tso tawm 5V, 3.3V, 1.8V, thiab lwm yam, kom ua tau raws li qhov xav tau ntawm cov khoom sib txawv.
DVDD yog cov logic voltage, feem ntau yog 3.3V, siv rau lub hwj chim ntawm lub logic circuits ntawm IC; AVDD yog lub ntsiab voltage, feem ntau yog siv rau lub pixel voltage tso zis los ntawm qhov chaw tsav tsheb thiab qhov voltage rau Gamma kho; VGH yog lub rooj vag tig- ntawm qhov hluav taws xob, siv los qhib lub rooj vag TFT; VGL yog lub rooj vag tig- tawm qhov hluav taws xob, siv los tua lub rooj vag TFT; VCOM yog lub vaj huam sib luag electrode voltage, uas txawv nyob ntawm lub vaj huam sib luag.
Teekan IC: Lub luag haujlwm rau kev hloov pauv cov teeb liab tswj, cov duab teeb liab, thiab lub moos teeb liab ntawm Input kawg rau hauv cov teeb liab uas tuaj yeem lees paub los ntawm Lub Chaw Tsav Tsheb thiab Gate Tsav Tsheb.
Cov pins tseem ceeb suav nrog cov cim qhia xws li CPV, STV, thiab CLK, thiab Gate signals xws li STH, CPH, POL, thiab TP.
Nyob rau hauv lub Circuit Court no, STV sawv cev rau cov duab pib input teeb liab (Cov ntaub ntawv Enable Pin), STH sawv cev rau lub rooj vag pib teeb liab (Gate Enable Pin), CLK yog lub Source data input moos, CPH yog lub rooj vag cov ntaub ntawv input moos, POL yog lub LCD polarity flip pib teeb liab, thiab TP yog qhov chaw tsav tsheb xauv cov ntaub ntawv los yog tso zis ntaub ntawv qhia teeb liab.
Qib Hloov IC: Nws lub luag haujlwm tseem ceeb yog hloov lub teeb liab tawm tswv yim los ntawm ib qho hluav taws xob mus rau lwm qhov.
Txij li VDD qhov tseem ceeb sib txawv rau qhov sib txawv ntawm qhov sib txawv, nws tsis tuaj yeem ua haujlwm zoo yam tsis muaj qhov hloov pauv voltage. Yog li ntawd, theem hloov dua siab tshiab ICs siv NMOS + PMOS lossis them hom twj tso kua mis los txhawb lossis tso lub teeb liab kom tau raws li qhov tshwj xeeb ntawm txhua qhov hluav taws xob.
Gamma Integrated Circuit (Gamma IC): Ua Gamma encoding ntawm daim duab, feem ntau los them rau cov yam ntxwv ntawm tib neeg lub zeem muag los ntawm kev suav ua haujlwm.
Lub hom phiaj ntawm Gamma encoding yog sawv cev rau cov ntaub ntawv dub thiab dawb cov ntaub ntawv lossis bandwidth raws li tib neeg kev nkag siab ntawm lub teeb lossis xim dub thiab dawb. Txij li thaum tib neeg lub zeem muag qhov kev nkag siab ntawm lub teeb hloov tsis yog linear, Gamma ICs yuav tsum tau them nyiaj rau qhov sib txawv ntawm qhov sib txawv ntawm lub teeb kom ua tau zoo rau tib neeg lub zeem muag.
III. Kev Txhim Kho Kev Txhim Kho ntawm TCON Boards Nrog kev nce qib kev siv technology tas li, IC feem ntawm TCON boards tau maj mam sib xyaw kom txo tau cov khoom, txo cov nqi, thiab txhim kho kev ua tau zoo tag nrho. Nyob rau hauv lub neej yav tom ntej, peb tuaj yeem saib xyuas qhov kev txhim kho txuas ntxiv ntawm cov khoom ntawm lub vaj huam sib luag kom nkag siab txog qhov kev nce qib tshiab hauv TCON boards thiab lawv cov ICs.
