OLED txhais licas thiab qhov twg yog siv?
OLED, ib daim ntawv tshaj ntawm LED, sawv cev rau organic teeb-emitting diode . Tsis zoo li LED, uas siv lub teeb pom kev zoo los muab lub teeb rau pixels, OELD vam rau cov khoom siv los ntawm cov khoom siv ua cov pa roj carbon dioxide los ua pa thaum sib txuas nrog hluav taws xob.
Muaj ntau qhov zoo rau txoj kev ua no, tshwj xeeb tshaj yog lub peev xwm rau txhua qhov pixel los ua qhov teeb ntawm lawv tus kheej, ua qhov kev sib piv tsis sib xws tsis sib haum, lub ntsiab lus dub yuav ua tau dub thiab xim dawb.
Qhov no yog qhov tseem ceeb tshaj plaws thiab ntau tshaj li cov cuab yeej siv OLED, xws li smartphones, cov twj siv tau zoo li smartwatches, TVs, ntsiav tshuaj, duab thiab laptop saib , thiab digital cov koob yees duab. Ntawm cov kev pabcuam thiab lwm tus yog ob hom ntawm OLED cov lus qhia uas tswj tau ntau txoj kev, hu ua active-matrix (AMOLED) thiab passive-matrix (PMOLED).
Cas ua haujlwm OLED
Ib qho screen hauv OLED muaj ntau qhov chaw. Nyob rau hauv tus qauv, hu ua substrate , yog lub cathode uas muab cov electrons, anode uas "rub tawm" cov electrons, thiab ib nrab nruab nrab (cov organic txheej) uas cais lawv.
Sab hauv nruab nrab txheej nruab nrab yog ob txheej ntxiv, ib qho uas yog lub luag hauj lwm rau kev tsim lub teeb thiab sib tw rau lub teeb.
Cov xim ntawm lub teeb uas tau pom hauv OLED cov duab yog cuam tshuam los ntawm cov xim liab, ntsuab, thiab xiav txuas nrog rau cov substrate. Thaum xim yog yuav dub, lub pixel yuav tsum muab tua kom paub tseeb tias tsis muaj lub teeb tsim rau qhov pixel ntawd.
Qhov no los tsim cov dub yog txawv ntawm ib qho siv nrog LED. Thaum ib tug to-be black pixel yog teem rau dub ntawm ib qho screen LED, lub pixel shutter yog kaw, tiam sis lub tsom teeb yog tseem emitting lub teeb, qab hau nws yeej tsis heev mus tag nrho txoj kev tsaus.
OLED Pros thiab Cons
Thaum piv rau LED thiab lwm yam yees technologies, OLED muab cov kev pab no:
- Zog txuag txij li thaum lub backlight tsis yog powered. Kuj, thaum siv cov dub, cov pixels tshwj xeeb tsis xav tau lub hwj chim txhua, ntxiv txuag zog.
- Lub zog tshiab dua sai dua vim hais tias pixel shutters tsis siv.
- Nrog tsawg lub Cheebtsam, cov zaub, thiab yog li tag nrho cov cuab yeej, nyob twj ywm nyias thiab hnyav.
- Dub xim dub tiag tiag vim hais tias cov pixels yuav kaw tawm tag thiab tsis muaj teeb pom ze ze ntawm qab uas muab lub ntsej muag ci hauv cheeb tsam ntawd. Qhov no tso cai rau kev sib piv siab tiag tiag (piv txwv li cov ci ci ci tshaj qhov tsaus ntuj dub).
- Txhawb lub dav muag saib tsis muaj xim ntau li LED.
- Qhov qhaj ntawv ntawm cov khaubncaws sab nraud povtseg pub ntau ntau rau cov khoom thiab cov yeeb yam.
Txawm li cas los, kuj muaj qhov tsis zoo rau OLED cov lus:
- Vim ib feem ntawm cov zaub yog cov organic, OLEDs qhia xim degradation thaum lub sij hawm, uas cuam tshuam rau tag nrho cov kev ntsuam xyuas ci ci thiab xim tshuav nyiaj li cas. Qhov no tau zuj zus nrog lub sijhawm txij li cov khoom siv uas yuav tsum tau ua rau qhov kev nyuaj siab nyuaj ntawm qhov ceev tshaj li cov liab thiab cov zaub ntsuab.
- OLED cov ntxaij vam tshaus tseem kim heev, tsawg kawg yog piv rau cov cuab yeej loj dua qub.
- Ob leeg OLED thiab LED nthuav qhia kev ntsuas hlawv-hauv yog pixels tshwj xeeb yog siv ntev ntev ntev, tiam sis cov nyhuv ntau dua ntawm OLEDs. Txawm li cas los, qhov no tshwm sim yog ib feem txiav txim siab los ntawm tus naj npawb ntawm pixels ib nti .
Xav paub ntxiv txog OLED
Tsis yog txhua daim iav OLED yog tib yam; qee cov cuab yeej siv lub hom phiaj ntawm OLED vim tias lawv muaj kev siv.
Piv txwv, lub xov tooj smartphone uas yuav tsum tau muaj qhov siab tshiab rau HD cov duab thiab lwm cov kev hloov hauv txhua lub sij hawm, tej zaum yuav siv cov AMOLED zaub. Tsis tas li ntawd, vim hais tias cov kev qhia no siv cov thin-film transistor hloov cov pixels rau / tawm los tso xim, lawv tuaj yeem txawm pob tshab thiab yoog raws, hu ua flexible OLEDs (los yog FOLDED).
Ntawm qhov tod tes, lub tshuab xam khib uas feem ntau qhia txog cov xov xwm hauv xov tooj rau ntev tshaj li ib lub xov tooj, thiab rov ua dua tshiab dua, siv tau cov cuab yeej ua haujlwm kom muaj zog rau tej chaw hauv cov yeeb yaj kiab kom txog thaum nws muaj zog, zoo li PMOLED, qhov twg txhua kab ntawm cov zaub yog tswj tsis txhua pixel.
Qee qhov lwm yam siv cov lus qhia OLED los ntawm cov tuam txhab ua khoom lag luam thiab smartwatches, zoo li Samsung, Google, Kua, thiab Cov Khoom Tseem Ceeb; digital koob yees duab xws li Sony, Panasonic, Nikon, thiab Fujifilm; ntsiav tshuaj ntawm Lenovo, HP, Samsung, thiab Dell; laptops zoo li Alienware, HP, thiab Kua; saib ntawm Oxygen, Sony, thiab Dell; thiab cov televisions los ntawm tuam txhab xws li Toshiba, Panasonic, Bank & Olufsen, Sony, thiab Loewe. Txawm tias cov xov tooj cua thiab cov teeb uas siv hluav taws xob siv OLED.
Dab tsi yog qhov pom ntawm cov lus uas tsis tau piav qhia txog nws qhov kev daws teeb meem . Hauv lwm cov lus, koj tsis tuaj yeem paub tias qhov kev daws teeb meem yog li cas ntawm qhov screen (4K, HD, thiab lwm yam) vim koj paub tias nws yog OLED (los yog Super AMOLED , LCD , LED, CRT , thiab lwm yam).
QLED yog ib lub sijhawm zoo sib xws uas Samsung siv los piav qhia ib lub vaj huam sib luag qhov twg uas muaj teeb meem ntawm LEDs sib tsoo nrog ib txheej ntawm quantum dots kom muaj lub teeb nyob rau hauv ntau xim. Nws stands rau quantum-dot lub teeb-emitting diode .