Kodi OLED Display ndi chiyani?

OLED ndi chidule cha Organic Light Emitting Diode, kutanthauza "ukadaulo wa Organic Light Emitting display" mu Chitchaina. kuwala.Mapangidwe oyambirira aOLED ndi kupanga wosanjikiza wa zinthu organic kuwala-emitting zakuthupi makumi a nanometers wandiweyani pa indium tin oxide (ITO) galasi ngati kuwala-emitting wosanjikiza.Pamwamba pa kuwala-emitting wosanjikiza ndi wosanjikiza zitsulo maelekitirodi ndi ntchito yochepa ntchito, kupanga dongosolo ngati sangweji.

ukadaulo wapamwamba wa OLED chiwonetsero

Gawo laling'ono (pulasitiki yowonekera, galasi, zojambulazo) - Gawoli limagwiritsidwa ntchito kuthandizira OLED yonse.

Anode (TRANSPARENT) - Anode amachotsa ma electron (amawonjezera "mabowo" a electron) pamene panopa ikuyenda kupyolera mu chipangizocho.

Hole transport layer - Gawoli limapangidwa ndi mamolekyu achilengedwe omwe amanyamula "mabowo" kuchokera ku anode.

Luminescent wosanjikiza - Chigawochi chimapangidwa ndi mamolekyu achilengedwe (mosiyana ndi zigawo zoyendetsera) pomwe njira ya luminescence imachitika.

Electron transport layer - Gawoli limapangidwa ndi mamolekyu achilengedwe omwe amanyamula ma elekitironi kuchokera ku cathode.

Ma cathodes (omwe angakhale owonekera kapena opaque, malingana ndi mtundu wa OLED) - Pamene panopa ikuyenda kupyolera mu chipangizocho, ma cathodes amalowetsa ma electron mu dera.

Njira ya luminescence ya OLED nthawi zambiri imakhala ndi magawo asanu otsatirawa:

① Jakisoni Wonyamula: Pansi pa gawo lamagetsi lakunja, ma elekitironi ndi mabowo amabayidwa mu gawo la organic lomwe limapangidwa pakati pa maelekitirodi kuchokera ku cathode ndi anode, motsatana.

② Zonyamulira zonyamula: ma elekitironi olowetsedwa ndi mabowo amasuntha kuchokera pagawo loyendera ma elekitironi ndi kusanjikiza dzenje kupita kugawo la luminescent, motsatana.

③ Kuphatikizikanso kwa chonyamulira: ma electron ndi mabowo akabayidwa munsanjika ya luminescent, amamangidwa pamodzi kuti apange ma electron mabowo awiriawiri, ndiye kuti, excitons, chifukwa cha mphamvu ya Coulomb.

④ Kusamuka kwa Exciton: Chifukwa cha kusalinganika kwa mayendedwe a ma elekitironi ndi mabowo, chigawo chachikulu chopangira ma exciton nthawi zambiri sichimaphimba gawo lonse la luminescence, chifukwa chake kusamuka kudzachitika chifukwa cha ndende.

⑤ Exciton radiation imachepetsa ma photon: Kusintha kwa radiation kwa exciton komwe kumatulutsa ma photon ndikutulutsa mphamvu.