Low kutentha kwa polysilicon ukadaulo wa LTPS

Ukadaulo wa Low Temperature Poly-silicon LTPS(Low Temperature poly-Silicon) udapangidwa koyambirira ndi makampani aukadaulo aku Japan ndi North America kuti achepetse kugwiritsa ntchito mphamvu kwa chiwonetsero cha Note-PC ndikupanga Note-PC kuwoneka yocheperako komanso yopepuka. Pakatikati mwa zaka za m'ma 1990, lusoli linayamba kuyikidwa muyeso.LTPS yochokera ku gulu latsopano la organic light-emitting panel OLED inagwiritsidwanso ntchito mu 1998, ubwino wake waukulu ndi ultra-thin, lightweight, low power. kugwiritsa ntchito, kungapereke mitundu yokongola kwambiri komanso zithunzi zomveka bwino.

Kutentha kochepa kwa polysilicon

TFT LCDakhoza kugawidwa mu polycrystalline silikoni (Poly-Si TFT) ndi amorphous silikoni (a-Si TFT), kusiyana pakati pa awiriwa amagona osiyana transistor makhalidwe. electron kuyenda ndi 200-300 nthawi mofulumira kuposa amorphous silikoni.TFT-LCDamatanthauza silicon amorphous, luso okhwima, kwa ambiri LCD products.The polysilicon makamaka zikuphatikizapo mitundu iwiri ya mankhwala: mkulu kutentha polysilicon (HTPS) ndi otsika kutentha polysilicon (LTPS).

Low Temperature Poly-silicon; Low kutentha poly-Silicon; LTPS (woonda filimu transistor liquid crystal display) amagwiritsa ntchito laser excimer monga gwero kutentha mu ma CD ndondomeko. kupangidwa ndi kuwonetsera pa galasi gawo lapansi la amorphous silikoni dongosolo. Pambuyo galasi gawo lapansi la amorphous silikoni dongosolo zimatenga mphamvu ya excimer laser, izo zidzasinthidwa kukhala polysilicon dongosolo. galasi gawo lapansi lingagwiritsidwe ntchito.

Cwovutitsa

LTPS-TFT LCD ili ndi ubwino wa kusamvana kwakukulu, kufulumira kuchitapo kanthu, kuwala kwakukulu, kutsegulira kwakukulu, etc. Komanso, chifukwa makonzedwe a silicon crystalChithunzi cha LTPS-TFTndi molingana kuposa a-Si, kuyenda kwa ma elekitironi ndikokwera kwambiri kuposa nthawi 100, ndipo kuzungulira kozungulira kumatha kupangidwa pagawo lagalasi nthawi yomweyo. Fikirani cholinga cha kuphatikiza dongosolo, sungani malo ndikuyendetsa mtengo wa IC.

Pa nthawi yomweyo, chifukwa dalaivala IC dera amapangidwa mwachindunji pa gulu, akhoza kuchepetsa kukhudzana kunja kwa chigawo chimodzi, kuonjezera kudalirika, kukonza mosavuta, kufupikitsa nthawi msonkhano ndondomeko ndi kuchepetsa EMI makhalidwe, ndiyeno kuchepetsa dongosolo ntchito kamangidwe. nthawi ndikukulitsa ufulu wamapangidwe.

LTPS-TFT LCD ndiukadaulo wapamwamba kwambiri wokwaniritsa System pa Panel, m'badwo woyamba waChithunzi cha LTPS-TFTkugwiritsa ntchito madalaivala opangidwa ndi madalaivala komanso mawonekedwe apamwamba kwambiri azithunzi kuti akwaniritse kusamvana kwakukulu komanso kuwala kwambiri, kwapangitsa kuti LTPS-TFT LCD ndi A-Si zikhale ndi kusiyana kwakukulu.

M'badwo wachiwiri wa LTPS-TFT LCD kudzera mukupita patsogolo kwaukadaulo wozungulira, kuchokera ku mawonekedwe a analogi kupita ku mawonekedwe a digito, kuchepetsa kugwiritsa ntchito mphamvu.Chithunzi cha LTPS-TFTndi nthawi 100 kuposa a-Si TFT, ndipo m'lifupi mzere wa elekitirodi chitsanzo ndi pafupifupi 4μm, amene si mokwanira ntchito LTPS-TFT LCD.

LTPS-TFT maLCD amaphatikizidwa bwino mu LSI yozungulira kuposa Generation 2.Cholinga cha LTPS-TFT LCDS ndi1) alibe zigawo zotumphukira kuti gawoli likhale locheperako komanso lopepuka, komanso kuchepetsa kuchuluka kwa magawo ndi nthawi ya msonkhano; (2) Kuwongolera ma sigino osavuta kumatha kuchepetsa kugwiritsa ntchito mphamvu; (3) Kukhala ndi kukumbukira kumatha kuchepetsa kugwiritsa ntchito mphamvu pang'ono.

LTPS-TFT LCD ikuyembekezeka kukhala mtundu watsopano wowonetsera chifukwa cha zabwino zake zowoneka bwino, kukhathamiritsa kwamitundu yayitali komanso mtengo wotsika. Ndiubwino wakuphatikiza madera okwera komanso mtengo wotsika, ili ndi mwayi wogwiritsa ntchito ang'onoang'ono komanso otsika mtengo. mapanelo owonetsera apakati.

Komabe, pali mavuto awiri mu p-Si TFT.Choyamba, zozimitsa panopa (ie kutayikira panopa) wa TFT ndi lalikulu (Ioff = nuVdW/L); Chachiwiri, n'zovuta kukonzekera mkulu kuyenda p-Si zinthu mu malo aakulu kutentha otsika, ndipo pali vuto linalake ndondomeko.

Ndi mbadwo watsopano wa teknoloji yochokera kuTFT LCD. Zowonetsera za LTPS zimapangidwa powonjezera njira ya laser ku mapanelo wamba amorphous silicon (A-Si) TFT-LCD, kuchepetsa kuchuluka kwa zigawo ndi 40 peresenti ndikulumikiza magawo ndi 95 peresenti, kuchepetsa kwambiri mwayi wa kulephera kwazinthu. kuwongolera pakugwiritsa ntchito mphamvu ndi kulimba, zokhala ndi ma degree 170 owoneka mopingasa komanso ofukula, 12ms yanthawi yoyankha, kuwala kwa nits 500, ndi chiyerekezo cha 500:1.

Pali njira zazikulu zitatu zophatikizira madalaivala otsika a p-Si:

Yoyamba ndi njira yophatikizira yosakanizidwa yojambulira ndi kusintha kwa data, ndiye kuti, dera la mzere limaphatikizidwa palimodzi, zolembera zosinthira ndi zosinthira zimaphatikizidwa mumayendedwe amzere, ndipo oyendetsa maadiresi angapo ndi amplifier amalumikizidwa kunja ndi chiwonetsero chazithunzi. ndi dera lobadwa nalo;

Chachiwiri, dera lonse loyendetsa galimoto likuphatikizidwa bwino pawonetsero;

Chachitatu, mabwalo oyendetsa ndi owongolera amaphatikizidwa pazenera.

Shenzhen DiziMalingaliro a kampani Display Technology Co., Ltd.ndi bizinesi yapamwamba kwambiri yophatikiza kafukufuku ndi chitukuko, kupanga, kupanga, kugulitsa ndi ntchito. Imayang'ana pa kafukufuku ndi chitukuko ndi kupanga zowonetsera mafakitale, zowonetsera mafakitale ndi mankhwala opangira kuwala, omwe amagwiritsidwa ntchito kwambiri pazida zamankhwala, mafakitale. malo ogwirira m'manja, ma terminals a Internet of Things ndi nyumba yanzeru. Tili ndi R&D yolemera komanso luso lopanga mu tftChithunzi cha LCD, nsalu yowonetsera mafakitale, nsalu yotchinga ya mafakitale, ndi zoyenera, ndipo ndiwe mtsogoleri wa makampani owonetsera mafakitale.