Taw qhia rau LTPS?

Lub Txuag Kub Tshaj Tawm Poly-silicon (LTPS) yog thawj lub tuam txhab thev naus laus zis hauv North America hauv Nyij Pooj los txo qis kev siv hluav taws xob ntawm Cov Lus Ceeb Toom-PC , Cov thev naus laus zis tau tsim los ua Note-PC tshwm ua kom pom qis dua thiab sib dua, Nyob ib ncig ntawm nruab nrab xyoo 1990. pib nkag mus rau theem kev sim。 Cov cim tshiab ntawm cov organic teeb ci vaj huam sib luag OLED muab los ntawm LTPS kuj tau nkag mus rau theem kev tsim xyoo 1998 , Nws qhov txiaj ntsig loj tshaj yog ultra-nyias, lub teeb yuag, tsis tshua muaj zog noj。 Muaj peev xwm ci xim thiab pom tseeb dua dluab。

Tsis tshua muaj kub polysilicon

 TFT LCD tuaj yeem muab faib ua polysilicon (Poly-Si TFT) thiab amorphous silicon (a-Si TFT), Qhov sib txawv nruab nrab ntawm ob qhov lus dag hauv cov yam ntxwv ntawm transistor。 Cov qauv tsim ntawm polysilicon raug teeb tsa kom zoo thiab kev coj ncaj qha rau hauv cov nplej grain Yog li ntawd, hluav taws xob hluav taws xob txav ceev yog 200-300 npaug sai dua qhov uas tsis sib haum ntawm amorphous silicon; Feem ntau hu ua TFT-LCD yog hais txog amorphous silicon, Mature thev naus laus zis, Nws yog cov khoom lag luam tseem ceeb ntawm LCD。Polysilicon cov khoom lag luam suav nrog polysilicon (HTPS) thiab kub-polysilicon (LTPS)。

 Tsawg Tshaj Tawm Kub Poly-silicon (LTPS) nyias zaj duab xis transistor kua siv lead ua cov lus qhia yog nyob rau hauv cov txheej txheem ntim, Siv excimer laser ua cov khoom siv cua sov, Tom qab lub teeb laser dhau los ntawm qhov projection system, Yuav tsim cov nqaj laser nrog cov hluav taws xob sib faib, Npaj rau lub khob txheej nrog lub amorphous silicon qauv, Thaum lub amorphous silicon qauv iav substrate nqus lub zog ntawm lub excimer laser, Yuav hloov mus rau hauv cov qauv polysilicon, Vim hais tias tag nrho cov txheej txheem kev kho mob ua tiav qis dua 600 ℃, Yog li ntawd, cov iav substrates muaj feem.

Yam ntxwv

  LTPS-TFT LCD muaj qhov zoo ntawm kev daws teeb meem loj, teb ceev ceev, siab ci, thiab siab aperture piv。 Tsis tas li ntawd, txij li silicon siv lead ua ntawm LTPS-TFT LCD ntau dua kev txiav txim siab tshaj li ntawm a-Si, Ua kom lub zog hloov hluav taws xob feem ntau siab dua 100 npaug, Kev txhim kho kev siv hluav taws xob tuaj yeem ua rau ntawm iav iav tib lub sijhawm, Ncav lub hom phiaj ntawm kev sib koom ua ke, txuag chaw thiab tsav IC nqi。

  Tib lub sijhawm, Vim tias tsav tsheb Circuit Court IC ncaj qha rau ntawm lub vaj huam sib luag, Muaj peev xwm txo cov ntsiab lus sab nraud ntawm cov khoom siv, Ua kom muaj kev cia siab, yooj yim txij nkawm, ua haujlwm luv luv lub sijhawm ua haujlwm thiab txo EMI cov yam ntxwv, Qhov no txo ​​lub sijhawm tsim ntawm daim ntawv thov system thiab nthuav tawm tsim kev ywj pheej.

  Lub tshuab thev naus laus zis ntau tshaj ntawm LTPS-TFT LCD yog kom ua tiav Cov Txheej Txheem Ua Vaj Huam Sib Luag, Thawj tiam ntawm LTPS-TFT LCD siv cov hluav taws xob tsim hauv Circuit Court thiab kev ua haujlwm siab pixel transistors kom tau txais kev daws teeb meem siab thiab siab. Nws tau ua LTPS-TFT LCD thiab a-Si muaj qhov sib txawv.

  Lub cim thib ob ntawm LTPS-TFT LCD los ntawm kev nce qib ntawm kev siv thev naus laus zis hauv tshuab, Los ntawm cov kab ke analog mus rau digital interface, Txo fais fab siv. Cov khoom thauj ntawm lub cev ntawm lub sijhawm no ntawm LTPS-TFT LCD yog 100 npaug ntawm a-Si TFT, Cov qauv hluav taws xob qauv dav dav txog 4μm, Cov yam ntxwv ntawm LTPS-TFT LCD tsis tau siv tag nrho.

  Qhov thib peb-tiam LTPS-TFT LCD yog ua tiav ntau dua nyob rau hauv cov khoom siv sib txuas loj loj (LSI) kev sib koom ua ke ntau dua li tiam thib ob, Nws lub hom phiaj yog: (1) Tsis muaj ntu ntu los ua qhov module sib dua thiab nyias dua, Nws tuaj yeem (2) nruab nrog kev cim xeeb kom txo qis siv hluav taws xob.

  Vim tias LTPS-TFT LCD kua siv kua zaub muaj qhov zoo ntawm kev daws teeb meem siab, siab lub teeb xim, thiab tus nqi qis, Muaj kev cia siab tau tso rau ntawm cov nthwv dej tshiab ntawm cov zaub.With nws cov hluav taws xob sib xyaw cov yam ntxwv thiab tsis tshua muaj nqi zoo, Nws muaj qhov kom zoo dua nyob rau hauv daim ntawv thov me me thiab nruab nrab saib cov duab ntxaij. Tab sis p-Si TFT muaj ob qhov teeb meem, Ib qho yog qhov tsis ua hauj lwm tam sim no (piv txwv li tam sim no) ntawm TFT yog qhov loj (Ioff = nuVdW / L); Qhov thib ob, nws nyuaj rau npaj cov khoom siv p-Si cov khoom siv siab. hauv cov chaw loj hauv qhov kub tsawg. Muaj qee qhov nyuaj hauv cov txheej txheem.

  Nws yog lub tshuab hluav taws xob tshiab tsim los ntawm TFT LCD.Qhov LTPS npo yog tsim los ntawm kev ntxiv cov txheej txheem laser ua rau cov tsoos amorphous silicon (a-Si) TFT-LCD panels.Qhov tsawg ntawm cov khoom siv tuaj yeem txo los ntawm 40%, Thiab cov qhov txuas ntu tuaj yeem txo los ntawm 95%, Zoo heev txo lub sijhawm ntawm cov khoom lag luam tsis ua haujlwm.Qhov npo tau zoo heev nyob rau hauv kev tswj hwm kev siv hluav taws xob thiab siv tau ntev, ob txoj kab rov tav thiab saib lub kaum ntse ntse tuaj yeem ncav cuag 170 degrees, Cov lus teb lub sijhawm nce mus txog 12ms, Cov zaub ci ci tau nce mus txog 500 nits, Qhov sib piv sib txawv tuaj yeem ncav cuag 500: 1.

Nws muaj peb txoj hauv kev los mus sib xyaw ua ke p-Si tsav tsheb qes-kub:

1 、 Kev sib xyaw ua ke ntawm kev sib tw thiab cov ntaub ntawv hloov, Lub Circuit Court muaj kev sib koom ua ke, Kev hloov pauv thiab hloov cov ntawv sau npe yog koom ua ke hauv kem Circuit Court, Ntau qhov chaw hais cov tsav tsheb thiab cov amplifiers tau txuas nrog lub tiaj tiaj vaj huam sib luag nrog cov kab ke sib luag;

2 、 Txhua qhov kev tsav tsheb tau tag nrho ua ke ntawm lub vijtsam zaub;

3 、 Tsav thiab tswj kev sib xyaw yog koom ua ke rau ntawm lub vijtsam tso saib.

 


Sijhawm Post: Jan-07-2021