Tsev > Exhibition > Ntsiab lus

Lub ntsiab lus ntawm TFT

Jun 13, 2018

LCD thiab OLED cov yeeb yam tseem ceeb ntawm kev tsav tsheb


Txoj cai duab yog ib qho yooj yim ntawm ob txoj hlua analog tsav hom, uas tswj cov T2 tam sim no ntawm lub rooj vag tam sim no ntawm tus tsav raj los tswj qhov kev pom ntawm OLED. Lub T1 lub raj yog ib qho chaw nyob rau hauv raj. Thaum lub teeb liab sau, tus kab kev tshuaj ntsuam yog nyob rau hauv ib qho tsis tshua muaj peev xwm, T1 conduction xeev, thiab cov teeb liab cov ntaub ntawv yog khaws cia rau ntawm qhov muaj peev xwm C1; thaum tso saib, txoj kab ntaus ntawv yog qhov siab muaj peev xwm, thiab T2 yog tswj tau los ntawm qhov kev tso tawm ntawm tus ciav capacitor C1 ua rau lub teeb ci ntawm OLED.    


               

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Cov teeb meem digital logic raws li TFT

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Ultra high zaus RFCPU nti npaj rau ib qho yooj yim substrate


Kev ua yeeb yam loj:

RF zaus: 915 MHz

Code tes taws los piav: pulse dav tes taws los piav

Cov ntaub ntawv tus nqi: 70.18 kbits / s

CPU moos: 1.12 MHz

ROM: 4 kB, RAM: 512 B


Cov cim taw qhia:

0.8 m polysilicon TFT txheej txheem

Pes tsawg transistors: 144K

Chip cheeb tsam: 10.5 * 8.9 mm2


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Tag nrho cov luam ntawv 7 kom nplhaib oscillator Circuit Court raws li organic TFT


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Tus ua hauj lwm txoj cai ntawm TFT Array

  • Qhov TFT Array yog siv los tswj seb puas muaj txhua lub chav hauv chav nruab ntug (tamsim) (txoj kev los sis tsis) thiab lub kaum sab xis ntawm qhov deflection (qhov kev tawm ntawm qhov kev tawm los).

  • Rau cov vijtsam duab, txhua lub pixel yuav ua kom yooj yim los ntawm cov qauv, thiab cov kua siv lead ua kua ntawm cov pixel electrode thiab cov hom electrode. Thaum ua, cov kua siv lead ua kua molecules yog npaj rau hauv lub xeev ntawm deflection, yog li ua tiav lub hom phiaj ntawm cov duab los ntawm shading thiab lub teeb kis.

  • Nyob rau tib lub sijhawm, lub TFT muaj cov nyhuv loj, uas yuav ua rau lub xeev muaj peev xwm, thiab cov kua siv dawb ua kua dej yuav ua kom lub xeev no kom txog thaum lub electrode ntxiv rau lwm zaus los hloov nws qhov kev npaj.

  • Txhawm rau pixel P (I, J) ntawm qhov seem ntawm cov kab i j, hloov T (I, J) mus txuas rau cov hom phiaj rau D (I). Thaum lub pixel electrode yog siab them, txawm tias qhov kev hloov no tau kaw, qhov them nyiaj hauv lub capacitor cia, thiab cov kua siv lead ua kua molecules ntawm cov electrodes tseem muaj ib qhov kev siv hluav taws xob.

  • Lub luag hauj lwm ntawm tus neeg tsav tsheb (kem) tus neeg tsav tsheb yog xav kom muaj lub hom phiaj ntawm qhov taw hluav taws xob, thiab lub rooj tsav npav (kab) tsav ua rau hloov mus thiab tawm.


Tus qauv ua haujlwm ntawm TFT:

  • Cov teeb liab input nqi thiab tsub cov kua siv lead ua kua capacitor los ntawm TFT keeb.

  • Ntxiv capacitor kom tswj cov lus qhia ntawm LCD capacitor mus rau lwm qhov tshiab.

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TFT ntaus ntawv yog lub lag luam uas nws muaj nuj nqi los tswj cov xov tooj ntawm electrons khiav mus rau hauv ITO cheeb tsam. Thaum tus naj npawb ntawm electrons hauv cheeb tsam ITO ncav tus naj npawb peb xav tau, tom qab ntawd lub TFT ntaus ntawv tua, ces tag nrho Khaws yog nyob rau thaj tsam ITO.

Thaum lub sij hawm Hloov Rau, qhov teeb liab yog sau rau cov kua siv lead ua kua capacitor. Nyob rau lub sij hawm no, qhov TFT tivthaiv yog tsawg impedance (RON). Thaum OFF, qhov TFT tivthaiv ua tiav siab (impairment) (ROFF), uas txwv tsis pub muaj cov lej ntawm cov teebmeem ntawm kab lus. Feem ntau, cov kev piv txwv ntawm RON thiab ROFF yog tsawg kawg yog 105.

Tsis muaj teeb meem li cas tus qauv ntawm TFT pawg thawj coj saib hloov, nws cov qauv yuav tsum muaj TFT ntaus thiab tswj cov kua siv lead ua kua.

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