Tsev > Exhibition > Ntsiab lus

Qhia txog TFT-LCD cov qauv thiab tsav tsheb

Jun 30, 2018

Qhia txog TFT-LCD cov qauv thiab tsav tsheb

    kev pab them nqi kho mob

   Ib qho kev qhia luv luv rau TFT LCD
Taw qhia rau TFT-LCD vaj huam sib luag
TFT-LCD tso txujci
Hom kev tsav tsheb thiab daim ntawv thov TFT-LCD
TFT-LCD tsav tsheb circuit architecture
Ntxiv: kev taw qhia txog txoj cai MVA tso saib

Ib qho kev qhia luv luv rau TFT LCD

Super nyias zaj duab xis transistor kua siv lead ua kua

1. Zoo :

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2 . Cov kev tsis taus:

Kev txwv ntawm saib lub kaum ntse ntse
Lus teb qeeb (txiav txim siab ua kua siv ua kua dav hlau)
Image blur yuav tshwm nyob rau hauv cov duab ua si tsausmuag zog
Kev khiav hauj lwm qhov txwv tsis pub tsawg

TFT LCD ntsig txog

LC: Ua kua Crystal kua Crystal.
CF: Xim lim xim xim. R, G thiab B tau muab faib ua peb hom xim lim.
B / L: Cov teeb ci rov qab.
L / G: Lub teeb qhia kev qhia lub teeb qhia lub teeb.
Cov kab ntawv: cov ntaub ntawv kab, cov ntaub ntawv xa tawm.
Luam theej duab: tus kab scan, tswj TFT hloov. Cov transistors ntawm tus tswj TFT muaj rau / tawm. Thaum twg On, cov ntaub ntawv kis tau; thaum tawm, cov ntaub ntawv tsis tuaj yeem kis tau.

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Taw qhia rau TFT-LCD vaj huam sib luag

 

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Kev tsim ntau lawm

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Polarizer

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Xim lim

Xim lim yog lub ntsiab tseem ceeb ntawm cov xim ntawm cov kua siv lead ua kua. Los ntawm cov xim lim, lub siab ua kua nplaum siv ua kua yuav muaj xim dawb. Yog li ua haujlwm ntawm cov xim lim yog tsim RGB Triple Light hauv txoj kev lim lub teeb, thiab sib xyaw peb thawj lub teeb nrog sib txawv zog thiab qaug zog los qhia txhua yam xim, kom LCD qhia txog xim tag nrho.

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Annotation:
Qhov yooj yim tshaj plaws xim lim ua rau iav substrate (iav substrate) ua rau cov anti reflective dub shading txheej, uas yog, txheej BM, thiab ces xim lim txheej ntawm lub teeb ntsuab, ntsuab, xiav 3 thawj xim zoo ntawm cov lim txheej yog txawv ntawm cov kua siv lead ua rau nyias siv) ntawm qhov kev txiav txim ntawm thiaj, thiab daim ntawv qhia pob tshab yog thaum kawg txaws ntawm lub txheej. Fais yeeb yaj kiab (ITO Indium Tin Oxide).


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Dub Matrix lub hom phiaj:
Npog lub cheeb tsam ntawm lub teeb xau, thiaj li tsis pom lub to ntawm lub teeb, ua rau ib tug thawj nyob rau hauv sib piv.
Cov ntaub ntawv dub Matrix:
Cr, CrO2, cob

Ua kua dej qab ntsev

1. cov kua nplaum ua rau tuaj yeem nkag mus rau ntawm lub teeb thiab cuam tshuam rau kev sib pauv ntawm lub teeb.
2. qhov sib txawv ntawm qhov teeb meem ntawm ob hnub ntawm kua siv lead ua molecules yog txawv. Lub degree ntawm polarization ntawm kua siv lead ua kua molecules yog txawv.

 

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Ua liaj ua teb muaj kev sib nraus Ua kom muaj kev sib hloov tom qab ntxiv qhov hluav taws xob

Lub hauv paus ntsiab lus ntawm kev tswj lub ci ci ntawm cov kua siv lead ua kua

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Ua kua dej qab ntsev polarity reversal tsav

   Cov kua nplaum yuav tsum tau coj los ntawm AC signals
Rau ib lub sij hawm ntev los tuav lub qe tawv dawb, kua siv lead ua kua roj yuav raug puas ntsoog.

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TFT qauv

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Lub teeb nruab nrig yog siv los muab lub teeb ci nrog cov teeb thiab kev ci ntsa iab ntawm cov kua siv lead ua kua. Vim tias tsis yog tus kheej luminescence ntawm TFT-LCD, sab nrauv qhov teeb meem, xws li lub teeb emitting diode thiab lub cathode txoj kab hluav taws xob txias, yuav tsum tau siv.

Cov haujlwm tseem ceeb: muab lub teeb ci sab hauv lub teeb ci sab hauv, muab qhov ci kom zoo, chroma, uniformity, lub kaum sab xis, thiab lwm yam.

TFT-LCD tso txujci

Daim duab tso tawm los ntawm lub tshuab computer yog ua los ntawm ib lub pixel (pixel).

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Xim ntsej muag zoo
Tswj lub ci ntsa iab ntawm RGB dot cais, thiab ua ntau yam qauv dawb.


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Xub xub thawj rau thawj kab, thiab so kom txaus

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Tom qab ntawd kaw thawj sab thiab qhov voltage yog tsau, yog li ntawd cov xim xim kuj yog tsau. Qhib ob sab, thiab so kom zoo kaw. Los ntawm analogy, cov duab ntawm tag nrho cov duab yuav ua tiav.

Qhov Performance index ntawm TFT LCD

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Tus cwj pwm ntawm TFT-LCD:
Txoj hmoo ntawm lub vaj huam sib luag hauv TFT-LCD: qhov kev nkag mus rau qhov qub tsis zoo.
Qhov nruab nrab: qhov sib piv ntawm cheeb tsam zoo ntawm lub teeb nyob rau hauv kua siv lead ua kua molecules. Qhov ntawd yog, qhov sib piv ntawm qhov chaw txav mus rau tag nrho cheeb tsam ntawm cov kua siv lead ua kua molecules hu ua aperture ratio.

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                      Qhib npaum li cas = B / A * 100%

Yog vim li cas cov neeg pluag kho qhov muag tsis haum yog :
1, qhib tus nqi ntawm TFT: li 60%.
2, qhov txiaj ntsig ntawm CF: tsawg tshaj li ntawm 1/3.
3, qhov kev ua kom tau zoo ntawm polarizer (uas muaj ob daim absorb): li 40% nce thiab nqis.
Peb npaug ntawm 60% x 1/3 * 40% yog li 8%
Yog li ntawd, nyob rau hauv tus tsim ntawm TFT LCD, los txhim kho qhib lub kom ntau li ntau tau, vim tsuas yog kom qhib qhov nqi, koj tuaj yeem nce qhov ci ntsa iab, thiab qhov ci ntsa iab ntawm lub qab ntsa yog tsis siab li, yuav txuag hluav taws xob thiab nqi.