Ithekhnoloji ye-polysilicon yobushushu obuphantsi Intshayelelo ye-LTPS

Ubushushu obuphantsi be-Poly-silicon itekhnoloji ye-LTPS(i-Low Temperature poly-Silicon) yaqala yaphuhliswa ziinkampani zobuchwepheshe zaseJapan naseMntla Melika ukuze kuncitshiswe ukusetyenziswa kwamandla kumboniso we-Note-PC kwaye yenze iNqaku-PC ibonakale ibhityile kwaye ikhaphukhaphu. Phakathi kwiminyaka yoo-1990, obu bugcisa buqale ukufakwa kwisigaba solingo.LTPS ethatyathwe kwisizukulwana esitsha sephaneli ye-organic-emitting panel i-OLED nayo yasetyenziswa ngokusesikweni ngo-1998, iingenelo zayo ezinkulu zi-ultra-thin, ubunzima obulula, ukusetyenziswa kwamandla aphantsi, kunokubonelela ngemibala emihle kunye nemifanekiso ecacileyo.

Ipolysilicon yobushushu obuphantsi

TFT LCDinokwahlulwa ibe yisilicon ye-polycrystalline (i-Poly-Si TFT) kunye nesilicon ye-amorphous (a-Si TFT), umahluko phakathi kwezi zimbini zilala kwiimpawu ezahlukeneyo ze-transistor.Isakhiwo se-molecular ye-polysilicon icwangciswe kakuhle kwaye iqondiswe kwi-Grain, ngoko ukuhamba kwe-electron ngamaxesha angama-200-300 ngokukhawuleza kune-silicon ye-amorphous.TFT-LCDibhekisa kwisilicon amorphous, ubuchwephesha obuvuthiweyo, kwiimveliso ze-LCD eziphambili.Ipolysilicon ibandakanya ikakhulu iindidi ezimbini zeemveliso: ubushushu obuphezulu bepolysilicon (HTPS) kunye nepolysilicon yobushushu obuphantsi (LTPS).

Ubushushu obuphantsi bePoly-silicon; Ubushushu obuphantsi bepoly-Silicon; LTPS (ifilimu encinci ye-transistor liquid crystal display) isebenzisa i-excimer laser njengomthombo wobushushu kwinkqubo yokupakisha.Emva kokuba ukukhanya kwelaser kudlule kwinkqubo yokuqikelela, i-laser beam ene-uniform energy distribution iya kwenziwa kwaye iqikelelwe kwi-substrate yeglasi ye-amorphous silicon structure. iguqulwe ibe yi-polysilicon structure.Ngenxa yokuba yonke inkqubo igqityiwe kwi-600 ℃, ngoko ke i-substrate yeglasi ngokubanzi ingasetyenziswa.

Ci-haracteristic

I-LTPS-TFT LCD ineenzuzo zesisombululo esiphezulu, isantya sokuphendula ngokukhawuleza, ukukhanya okuphezulu, izinga lokuvula eliphezulu, njl.LTPS-TFT LCDilungelelene kune-a-Si, ukuhamba kwe-electron kungaphezulu kwamaxesha e-100 ngaphezulu, kwaye i-peripheral drive circuit inokwenziwa kwi-substrate yeglasi ngaxeshanye. Ukufezekisa injongo yokudibanisa inkqubo, gcina indawo kwaye uqhube iindleko ze-IC.

Kwangaxeshanye, kuba umqhubi wesekethe ye-IC iveliswa ngokuthe ngqo kwiphaneli, inokunciphisa unxibelelwano lwangaphandle lwecandelo, ukwandisa ukuthembeka, ukugcinwa lula, ukunciphisa ixesha lenkqubo yendibano kunye nokunciphisa iimpawu ze-EMI, kwaye emva koko ukunciphisa ixesha loyilo lwenkqubo yesicelo kunye nokwandisa inkululeko yoyilo.

I-LTPS-TFT LCD yeyona teknoloji iphezulu yokufezekisa iNkqubo kwiPaneli, isizukulwana sokuqala seLTPS-TFT LCDusebenzisa isekethe yomqhubi eyakhelweyo kunye ne-high-performance picture transistor ukufikelela kwisisombululo esiphezulu kunye nesiphumo sokukhanya okuphezulu, yenze i-LTPS-TFT LCD kunye ne-A-Si inomahluko omkhulu.

Isizukulwana sesibini se-LTPS-TFT LCD ngenkqubela phambili yetekhnoloji yesekethe, ukusuka kwi-analog interface ukuya kujongano lwedijithali, ukunciphisa ukusetyenziswa kwamandla.I-on-carrier mobility yesi sizukulwanaLTPS-TFT LCDngama-100 amaxesha e-a-Si TFT, kwaye ububanzi bomgca wepateni ye-electrode imalunga ne-4μm, engasetyenziswanga ngokupheleleyo kwi-LTPS-TFT LCD.

I-LTPS-TFT LCDs idityaniswe ngcono kwi-peripheral LSI kune-Generation 2. Injongo ye-LTPS-TFT LCDS kuku-I-1) ayinazo iinxalenye zeperipheral ukwenza imodyuli ibe mncinci kwaye ibe khaphukhaphu, kwaye inciphise inani lamalungu kunye nexesha lendibano; (2) Ukusetyenzwa kophawu olulula kunokunciphisa ukusetyenziswa kwamandla; (3) Ukuxhotyiswa ngememori kunokunciphisa ukusetyenziswa kwamandla kubuncinci.

I-LTPS-TFT LCD kulindeleke ukuba ibe luhlobo olutsha lokubonisa ngenxa yeenzuzo zayo zesisombululo esiphezulu, ukugcwala kombala ophezulu kunye neendleko eziphantsi.Ngoncedo lokudityaniswa kweesekethe eziphezulu kunye neendleko eziphantsi, inenzuzo epheleleyo ekusebenziseni iipaneli zokubonisa ezincinci kunye neziphakathi.

Nangona kunjalo, kukho iingxaki ezimbini kwi-p-Si TFT. Okokuqala, i-turn-off yangoku (okt ukuvuza kwangoku) kwe-TFT inkulu (Ioff = nuVdW / L); Okwesibini, kunzima ukulungiselela izinto ezihamba phambili ze-p-Si kwindawo enkulu kwiqondo lokushisa eliphantsi, kwaye kukho ubunzima obuthile kwinkqubo.

Sisizukulwana esitsha sobuchwepheshe obuvelaTFT LCD. Izikrini ze-LTPS zenziwe ngokongeza inkqubo ye-laser kwiipaneli ze-amorphous ze-amorphous (A-Si) TFT-LCD, ukunciphisa inani lamacandelo ngama-40 ekhulwini kunye neengxenye ezidibanisayo ngama-95 ekhulwini, ukunciphisa kakhulu ithuba lokungaphumeleli kwemveliso. Ukuqaqamba, kunye 500:1 umlinganiselo umahluko.

Kukho iindlela ezintathu eziphambili zokudibanisa ubushushu obuphantsi abaqhubi be-p-Si:

Eyokuqala yimowudi yokudibanisa i-hybrid yokuskena kunye nokutshintsha kwedatha, oko kukuthi, isiphaluka somgca sidityaniswe kunye, irejista yokutshintsha kunye neshift idityaniswe kwisiphaluka somgca, kwaye umqhubi weedilesi ezininzi kunye ne-amplifier zixhunywe ngaphandle kwiphaneli yomboniso weflethi kunye nesiphaluka esizuzwe njengelifa;

Okwesibini, yonke isiphaluka sokuqhuba ihlanganiswe ngokupheleleyo kwisiboniso;

Okwesithathu, iisekethe zokuqhuba kunye nokulawula ziyadityaniswa kwiscreen sokubonisa.

Shenzhen DisenI-Display Technology Co., Ltd.lishishini lobugcisa obuphezulu obudibanisa uphando kunye nophuhliso, uyilo, imveliso, ukuthengisa kunye nenkonzo. Ijolise kuphando kunye nophuhliso kunye nokuveliswa kwezikrini zokubonisa i-industrial, i-industrial touch screens kunye neemveliso ze-laminating zamehlo, ezisetyenziswa ngokubanzi kwizixhobo zonyango, i-industrial handheld terminals, i-intanethi ye-Izinto terminals kunye nekhaya elihlakaniphile.Isikrini se-LCD,isikrini sokubonisa imveliso, isikrini esichukumisayo seshishini, kunye nokulingana okugcweleyo, kwaye ungowenkokeli yeshishini lokubonisa.