Ukushisa okuphansi kwe-polysilicon ubuchwepheshe be-LTPS isingeniso

I-Low Temperature Poly-silicon technology LTPS(Low Temperature poly-Silicon) yaqalwa yathuthukiswa izinkampani zobuchwepheshe zaseJapane nezaseNyakatho Melika ukuze kwehliswe ukusetshenziswa kwamandla kwesibonisi se-Note-PC futhi yenze i-Note-PC ibonakale izacile futhi ilula. Maphakathi nawo-1990, lobu buchwepheshe baqala ukufakwa esigabeni sesilingo. I-LTPS ethathwe esizukulwaneni esisha sephaneli ekhipha ukukhanya ephilayo i-OLED nayo yasetshenziswa ngokusemthethweni ngo-1998, izinzuzo zayo ezinkulu zincane kakhulu, isisindo esincane, amandla aphansi. ukusetshenziswa, kunganikeza imibala emihle kakhulu nezithombe ezicacile.

Izinga lokushisa eliphansi le-polysilicon

I-LCD ye-TFTingahlukaniswa ibe yi-polycrystalline silicon (i-Poly-Si TFT) ne-amorphous silicon (a-Si TFT), umehluko phakathi kwakho kokubili usezicini ezihlukahlukene ze-transistor. ukuhamba kwe-electron kushesha izikhathi ezingu-200-300 kune-amorphous silicon.Ngokujwayelekile yaziwa ngokuthiI-TFT-LCDibhekisela ku-silicon e-amorphous, ubuchwepheshe obuvuthiwe, bemikhiqizo ye-LCD evamile.I-polysilicon ikakhulukazi ihlanganisa izinhlobo ezimbili zemikhiqizo: izinga lokushisa eliphezulu i-polysilicon (HTPS) kanye ne-polysilicon yokushisa ephansi (LTPS).

I-Low Temperature Poly-silicon;Izinga lokushisa eliphansi i-poly-Silicon;I-LTPS (ifilimu encane ye-transistor liquid crystal display) isebenzisa i-excimer laser njengomthombo wokushisa enqubweni yokupakisha.Ngemva kokuba ukukhanya kwe-laser kudlule ohlelweni lokuqagela, i-laser beam enokusabalalisa kwamandla afanayo kukhiqizwa futhi kuboniswe engxenyeni yengilazi yesakhiwo se-amorphous sililikoni.Ngemva kokuthi i-substrate yengilazi yesakhiwo se-silicon e-amorphous imunca amandla e-excimer laser, izoguqulwa ibe isakhiwo se-polysilicon.Ngoba yonke inqubo iqedwa ku-600℃, ngakho-ke jikelele ingilazi substrate ingasetshenziswa.

Cokuhlukumezayo

I-LTPS-TFT LCD inezinzuzo zokucaca okuphezulu, isivinini sokuphendula ngokushesha, ukukhanya okuphezulu, izinga eliphezulu lokuvula, njll. Ngaphezu kwalokho, ngenxa yokuthi ukuhlelwa kwekristalu ye-siliconI-LTPS-TFT LCDilandelana kune-a-Si, ukuhamba kwe-electron kuphakeme izikhathi ezingaphezu kweziyi-100, futhi umjikelezo wokushayela we-peripheral ungenziwa ku-substrate yengilazi ngesikhathi esifanayo. Finyelela umgomo wokuhlanganiswa kwesistimu, yonga isikhala bese ushayela izindleko ze-IC.

Ngasikhathi sinye, ngoba isekethe ye-IC yomshayeli ikhiqizwa ngqo kuphaneli, inganciphisa ukuthintana kwangaphandle kwengxenye, ikhulise ukuthembeka, ukugcinwa okulula, ifinyeze isikhathi senqubo yomhlangano futhi yehlise izici ze-EMI, bese inciphisa ukwakheka kohlelo lohlelo lokusebenza. isikhathi nokwandisa inkululeko yokuklama.

I-LTPS-TFT LCD ubuchwepheshe obuphakeme kakhulu bokuzuza i-System on Panel, isizukulwane sokuqalaI-LTPS-TFT LCDkusetshenziswa isekethe yomshayeli eyakhelwe ngaphakathi kanye ne-transistor yesithombe esebenza kahle kakhulu ukuze kuzuzwe ukulungiswa okuphezulu nomphumela wokukhanya okuphezulu, kwenze i-LTPS-TFT LCD ne-A-Si yaba nomehluko omkhulu.

Isizukulwane sesibili se-LTPS-TFT LCD ngokuqhubeka kobuchwepheshe besekethe, sisuka esibonakalayo se-analog siye esixhunyweni esibonakalayo sedijithali, sinciphisa ukusetshenziswa kwamandla.I-LTPS-TFT LCDiphindwe izikhathi eziyi-100 kune-a-Si TFT, futhi ububanzi bomugqa wephethini ye-electrode cishe bungu-4μm, obungasetshenziswa ngokugcwele ku-LTPS-TFT LCD.

I-LTPS-TFT LCDs-Center ihlanganiswe kangcono ku-LSI yangaphandle kune-Generation 2. Injongo ye-LTPS-TFT LCDS iwukuba1) zingabi nezingxenye eziseceleni zokwenza imojuli ibe mncane futhi ibe lula, futhi inciphise inani lezingxenye nesikhathi sokuhlanganisa;(2) Ukucubungula isignali okwenziwe lula kunganciphisa ukusetshenziswa kwamandla;(3) Ukuhlonyiswa ngenkumbulo kunganciphisa ukusetshenziswa kwamandla kube okungenani.

I-LTPS-TFT LCD kulindeleke ukuthi ibe uhlobo olusha lwesibonisi ngenxa yezinzuzo zayo zokucaca okuphezulu, ukugcwala kombala okuphezulu kanye nezindleko eziphansi.Ngobuhle bokuhlanganiswa kwesekethe ephezulu kanye nezindleko eziphansi, inenzuzo enkulu ekusebenziseni izinto ezincane nezincane. amaphaneli wokubonisa anosayizi omaphakathi.

Nokho, kunezinkinga ezimbili ku-p-Si TFT.Okokuqala, ukucisha kwamanje (okungukuthi ukuvuza kwamanje) kwe-TFT kukhulu (Ioff=nuVdW/L);Okwesibili, kunzima ukulungisa izinto ezihamba phambili ze-p-Si indawo enkulu ekushiseni okuphansi, futhi kunobunzima obuthile kule nqubo.

Kuyisizukulwane esisha sobuchwepheshe obususelwe kuI-LCD ye-TFT. Izikrini ze-LTPS zikhiqizwa ngokwengeza inqubo ye-laser kumaphaneli e-amorphous silicon (A-Si) TFT-LCD avamile, kunciphisa inani lezingxenye ngamaphesenti angu-40 kanye nokuxhuma izingxenye ngamaphesenti angu-95, kunciphisa kakhulu ithuba lokwehluleka komkhiqizo. ukuthuthukiswa kokusetshenziswa kwamandla nokuqina, nama-engeli angu-170 okubuka avundlile naqondile, angu-12ms wesikhathi sokuphendula, ukukhanya okungu-500 nits, kanye nesilinganiso sokungafani esingu-500:1.

Kunezindlela ezintathu eziyinhloko zokuhlanganisa abashayeli be-p-Si bezinga lokushisa eliphansi:

Eyokuqala imodi yokuhlanganisa eyingxube yokuskena nokushintsha kwedatha, okungukuthi, isekethe yomugqa ihlanganiswe ndawonye, ​​irejista yokushintsha kanye ne-shift ihlanganiswe kumjikelezo womugqa, futhi umshayeli okhuluma ngamakheli amaningi kanye ne-amplifier kuxhumeke ngaphandle kusibonisi sephaneli. ngomjikelezo ozuzwe njengefa;

Okwesibili, yonke isifunda sokushayela sihlanganiswe ngokugcwele esibukweni;

Okwesithathu, amasekhethi okushayela nawokulawula ahlanganiswe esikrinini sokubonisa.

Shenzhen DisenI-Display Technology Co., Ltd.yibhizinisi lobuchwepheshe obuphezulu elihlanganisa ucwaningo nentuthuko, ukuklama, ukukhiqiza, ukuthengisa kanye nenkonzo.Igxile ocwaningweni nasekuthuthukisweni nasekukhiqizeni izikrini zokubonisa izimboni, izikrini zokuthinta izimboni kanye nemikhiqizo ye-optical laminating, esetshenziswa kabanzi emishinini yezokwelapha, ezimbonini. amatheminali aphathwayo, amatheminali e-inthanethi Yezinto kanye nekhaya elihlakaniphile.Sine-R&D ecebile nolwazi lokukhiqiza ku-tftIsikrini se-LCD,isikrini sokubonisa sezimboni, isikrini sokuthinta semboni, nokulingana okugcwele, futhi ingeyomholi wemboni yokubonisa izimboni.