Tsev > Xov xwm > Ntsiab lus

Lwm Yam Teeb Meem Ntawm FPD

May 04, 2018

Txoj kev loj hlob ntawm FPD

Piv nrog rau cov tshuaj CRT (cathode txoj kab tsho lub raj), cov vaj huam sib luag tiaj tus muaj qhov zoo ntawm nyias, lub teeb, qis siv zog, tsis muaj hluav taws xob, tsis muaj lub ntsej muag, thiab yog ib qho zoo rau tib neeg kev noj qab haus huv. Tam sim no, nws tau tshaj CRT ntawd cov khoom muag thoob ntiaj teb. Nws yog kwv yees tias tus nqi ntawm ob tog yuav ncav cuag 5: 1 los ntawm 2010. Nyob rau xyoo pua nees-nkaum xyoo, cov lus qhia vaj huam sib luag yuav ua cov khoom hauv tsev kawm ntawv. Raws li tus naas ej Stanford Resources lag luam, lub khw muag khoom ntiaj teb rau cov rooj sib txoos hauv vaj huam sib luag yuav nce ntxiv ntawm $ 23 nphom hauv xyoo 2001 mus txog $ 58 billion 700 lab hauv 2006, nrog rau qhov nruab nrab txhua xyoo nce ntawm 20% hauv 4 xyoos tom ntej.


Lub tais vaj huam sib luag rau siab yog muab faib ua lub teeb taws emitting zaub thiab passive lub teeb emitting zaub. Tus neeg qub yog hais txog cov duab uas qhia txog lub teeb ntawm nws qhov nruab nrab thiab muab hluav taws xob pom. Nws muaj xws li cov yeeb yaj duab plasma (PDP), lub tshuab fais fab (Vacuum Fluorescent Display (VFD), lub tso pa tawm ntawm huab cua (FED), ib qho screen electroluminescent (LED) thiab cov organic teeb emitting diode zaub (OLED). Lub tom kawg txhais tau hais tias cov khoom siv kho qhov nruab nrab ntawm cov khoom nruab nrab yog hloov los ntawm cov hluav taws xob cov hluav taws xob thiab hloov los ntawm cov hluav taws xob cov hluav taws xob, uas yog teeb tsa nyob rau ntawm lub teeb nruj thiab lwm lub hwj huam mov (qhov kaj, lub teeb pom kev), thiab muaj nyob rau ntawm qhov screen lossis npo. Nws muaj cov kua siv lead ua kua (LCD) thiab MEMS cov duab. (DMD) thiab electronic ink number (EL) thiab lwm yam.


1. LCD

Cov khoom siv lead ua kua dej xws li passive matrix liquid crystal display (PM-LCD) thiab cov khoom siv roj ntsha hloov ua kua (AM-LCD). STN thiab TN kua crystal pom muaj cov passive matrix LCD. Nyob rau hauv 90s, nquag matrix kua crystal display tshuab tsim sai, tshwj xeeb tshaj yog nyias zaj duab xis transistor kua crystal display (TFT-LCD). Ua ib qho khoom hloov tshiab ntawm STN, nws muaj ntau yam zoo, xws li kev teb ceev ceev thiab tsis muaj kev sib tw. Nws yog dav siv lub tshuab computer thiab chaw ua haujlwm, TV, yees duab yees thiab tshuab nqa cov yees duab. Qhov txawv nruab nrab ntawm AM-LCD thiab PM-LCD lies nyob rau hauv qhov tseeb hais tias txhua tus pixel nrog hloov cuab tam yuav overcome cross cuam tshuam thiab ua zoo siab sib txawv thiab kev daws teeb meem. Tam sim no, AM-Liab adopts amorphous silicon (a-Si) TFT switching pab kiag li lawm thiab cov chaw txuag hluav taws xob, uas tuaj yeem tau txais qhov siab tshaj plaws thiab ua kom pom tseeb xim. Txawm li cas los xij, txoj kev loj hlob ntawm P-Si (polysilicon) TFT (nyias zaj duab xis transistor) zaub tau tsav los ntawm qhov kev thov rau cov koob yees duab ceev thiab daim ntawv thov kev siv rau kev kho siab thiab cov duab me me. Lub P-Si mobility yog 8 mus rau 9 npaug siab dua qhov kev khiav ntawm ib-Si. P-Si TFT qhov luaj li cas me me, tsis yog tsim kom muaj kev siab dav thiab kev daws teeb meem siab, tab sis tseem tuaj yeem ua ke mus rau hauv lub substrate. Hauv ntej, LCD yog tsim rau cov me me, lub teeb thiab qis zog cov lus qhia me me thiab nruab nrab, uas yog siv dav hauv cov computers, cov xov tooj ntawm tes thiab lwm yam khoom siv hluav taws xob. Lub 30 nti thiab 40 nti LCD tau tsim thiab muaj qee cov tau muab tso rau. LCD tom qab nplai cov khoom, qhov nqi tsawg zuj zus. Tam sim no, lub 15-inch LCD saib tau nyob rau hauv kev ua lag luam rau 500 US dollars. Nws txoj kev loj hlob yav tom ntej yog los hloov lub PC cathode zaub thiab nws cov ntawv hauv LCD TV.


2. PDP

Plasma zaub yog lub teeb pom kev zoo uas siv los ntawm txoj cai ntawm roj (xws li pa) tawm. Lub plasma zaub muaj qhov zoo ntawm cathode txoj hlua tube, tab sis nws yog ua rau nyias qauv. Tam sim no, cov khoom loj yog 4042 nti. Lub 5060 nti khoom tsim tau.


3. VFD

Lub tshuab nqus tsev fluorescent yog siv los ua tus saib xyuas cov khoom siv suab / video thiab khoom siv hauv tsev. Nws yog ib qho peb lub voj electron tube nqus cov zaub mov, uas yog khawm cathode, daim phiaj thiab qhov anode nyob rau hauv lub tshuab nqus tsev vacuum. Nws yog accelerated ntawm tus zoo voltage ntxiv los ntawm daim phiaj thiab anode, thiab yog stimulated los ntawm excitation ntawm phosphor coated ntawm tus anode. Lub rooj vag yog siv los ua cov qauv honeycomb.


4. ELD

Electroluminescent cov lus qhia yog ua los ntawm cov khoom siv hauv lub xeev thin film. Ib qho txheej txheem insulating yog muab tso rau ntawm 2 cov paib hluav taws, thiab ib txheej txheej electroluminescent tso. Tus ntaus ntawv siv thoob plaws kis spectrum zinc coated plates los yog strontium coated plates raws li qhov chaw electroluminescent. Cov txheej txheem electroluminescent yog 100 microns tuab thiab tuaj yeem tso tau kom pom meej li cov organic teeb emitting diode (OLED) zaub. Nws raug tsav tsheb voltage yog AC voltage ntawm 10KHz thiab 200V, uas yuav tsum kim kim kim IC. Muaj teeb meem loj cov teeb meem me me nrog cov txheej txheem khiav lag luam tsav npav tau tsim.


5. LED

LED zaub muaj ntau lub teeb ntawm lub teeb-emitting diodes, uas yog monochromatic lossis multi coloured. Cov xim xiav tau ua rau ntawm kev ua lag luam, ua rau nws tsim tau panchromatic loj npo LED tso saib. LED cov zaub muaj cov yam ntxwv ntawm kev ci ntsa iab, kev ua haujlwm siab thiab lub neej ntev. Nws yog tsim rau loj screen zaub rau sab nraud siv. Txawm li cas los xij, siv cov tshuab no tuaj yeem tsim cov khoom nruab nrab rau cov neeg saib xyuas lossis PDA. Txawm li cas los xij, tus qauv siv hluav taws xob monolithic siv tau ua ib lub tshuab monochromatic.


6. DMD

Qhov no yog ib qho khoom me me ua tau ntawm MEMS technology. Nyob rau hauv cov lus no, cov qauv siv me me yog tsim los ntawm kev siv cov qauv kev siv hluav taws xob los ua cov txheej txheem semiconductors thiab lwm yam ntaub ntawv. Hauv digital micro daim iav ntaus cim, nws cov qauv yog ib daim iav los ntawm pob zeb. Hinge yog kev siab zoo los ntawm tus nqi ntawm lub thawv ntim qaum xa mus rau ib qho ntawm cov chaw nyob cia hauv qab no. Qhov loj ntawm txhua micromirror yog hais txog lub taub ntawm tib neeg cov plaub hau. Cov cuab yeej no yog siv rau kev lag luam xa xov luaj li cas thiab tsev ua yeeb yam hauv tsev.


7. FED

Lub hauv paus ntsiab lus ntawm daim paib emission yog tib yam li cov cathode ntawm lub tshav dav hlau, uas yog, cov electrons yog attracted los ntawm cov phiaj thiab tsoo nrog lub phosphors coated rau ntawm anode. Nws cov cathode muaj li ntawm ntau tus me me electronically txheej txheem ntawm array, uas yog, array ntawm ib pixel thiab ib cathode. Zoo li cov yeeb yaj duab, cov pa roj carbon monoxide qhia tau tias yuav tsum ua haujlwm siab ntev, muaj qhov siab ntawm 200V txog 6000V. Tab sis kom deb li deb, vim hais tias ntawm high production ntau ntawm nws cov khoom tsim, nws tsis tau los ua lub teeb vaj huam sib luag rau cov zaub mov mainstream.


8. organic teeb emitting diode zaub

Hauv organic teeb emitting diode zaub (OLED), tam sim no ntws los ntawm 1 los yog ntau cov khaubncaws sab nraud povtseg ntawm cov yas, uas ua rau lub phenomenon ntawm luminescence xws li inorganic lub teeb-emitting diodes. Qhov no txhais tau hais tias cov cuab yeej hauv OLED yuav tsum tau muaj cov zaj duab xis stacking rau hauv substrate. Txawm li cas los xij, cov ntaub ntawv organic yog cov dej ua pa thiab oxygen, yog li tseem ceeb heev. OLED yog ib lub teeb ci ntsa iab thiab cov khoom pov thawj pom kev zoo thiab muaj hwj chim tsawg. Lawv muaj peev xwm ua rau huab hwm coj ntau rau ntawm ib qho yooj yim substrate nyob rau hauv ib tug yob rau yob cov txheej txheem, yog li tus nqi tsim yog heev tsawg. Cov cuab yeej muaj ntau hom kev siv, los ntawm kev yooj yim monochromatic loj cheeb tsam kom puv xim duab video.


9. E-cwj mem

E-ink Number yog ib qho khoom siv los ntawm lub tshuab hluav taws xob los ntawm cov khoom siv. Nws muaj coob tus micro - kaw pob tshab kev sib txuas, txhua tus uas yog li ntawm 100 microns inch thiab muaj ib cov dej dub dyeing khoom thiab phav phav dawb titanium dioxide hais. Thaum ib qho hluav taws xob yog ntxiv rau cov khoom siv bistable, titanium dioxide hais mus rau ib qho ntawm cov electrodes raws li lawv lub xeev lub txim. Qhov no ua rau cov pixels ci los sis tsis ci. Vim hais tias cov khoom yog bistable, nws muaj peev xwm tuav cov ntaub ntawv rau ob peb lub hlis. Vim hais tias lub teb hluav taws xob tswj nws lub xeev ua haujlwm, nws muaj peev xwm hloov nws cov ntsiab lus tso nrog tsawg zog.