Ngokutsho kweengxelo zakutshanje ezivela kumajelo aseMzantsi Korea, iKorea Photonics Technology Institute (KOPTI) ibhengeze uphuhliso oluyimpumelelo lweteknoloji ye-Micro LED esebenzayo kunye nelungileyo.Ukusebenza kwe-quantum yangaphakathi ye-Micro LED inokugcinwa ngaphakathi koluhlu lwe-90%, kungakhathaliseki ubungakanani be-chip okanye ukuxinana kwangoku kwangoku.

20μm Micro LED ijiko langoku-voltage kunye nomfanekiso wokuphuma (ikhredithi yomfanekiso: KOPTI)

Le teknoloji ye-Micro LED iphuhliswe ngokubambisana neqela likaDkt Jong hyup Baek kwiSebe le-Optical Semiconductor Display, iqela le-ZOGAN Semi elikhokelwa nguDkt Woong ryeol Ryu, kunye noProfesa Jong eShim kwiSebe leNano-Optoelectronics kwiYunivesithi yaseHanyang.Imveliso ijongana nomba wokwehla ngokukhawuleza kokukhutshwa kokukhanya kwii-Micro LEDs ngenxa yokuncipha kobungakanani betshiphu kunye nokunyuka kwemisinga yokutofa.

Kufunyaniswe ukuba ii-Micro LEDs ezingaphantsi kwe-20μm ngobukhulu azifumani nje ukuhla ngokukhawuleza kokusebenza kokukhanya kokukhanya kodwa zikwabonisa ilahleko ebalulekileyo yokuphinda iphinde iphinde iphinde iphinde ibe nemitha phakathi koluhlu lwangoku oluphantsi (0.01A/cm² ukuya ku-1A/cm²) olufunekayo ukuqhuba iipaneli zokubonisa. .Okwangoku, ishishini liyawunciphisa ngokuyinxenye lo mbandela ngeenkqubo zokudlula kwicala le-chip, kodwa ayisombululi ingxaki.

Ukusebenza kwe-quantum yangaphakathi (IQE) ye-20μm kunye ne-10μm blue Micro LED iyahluka ngokobuninzi bangoku.

I-KOPTI ichaza ukuba iqela lophando liye lanciphisa ubunzima kwi-epitaxial layer kwaye yaphucula ukusebenza kakuhle kokukhutshwa kokukhanya ngokuphumeza isakhiwo esitsha.Esi sakhiwo esitsha sicinezela ukuhluka koxinzelelo lomzimba lweMicro LED phantsi kwayo nayiphi na intsimi yombane yangaphandle okanye isakhiwo.Ngenxa yoko, kunye nobukhulu obuncinci be-Micro LED, isakhiwo esitsha sinciphisa kakhulu ilahleko yokuphinda iphinde iphinde iphinde iphinde ibe ne-radiative ngelixa igcina ukukhanya okuphezulu kokukhutshwa kokukhanya ngaphandle kwesidingo seenkqubo zokudlula.

Iqela liye laqinisekisa ngempumelelo ukusetyenziswa kwe-teknoloji ye-Micro LED esebenzayo kunye ne-blue blue, i-gallium nitride eluhlaza, kunye nezixhobo ezibomvu.Kwixesha elizayo, le teknoloji ibambe amandla okuvelisa i-gallium nitride ye-Micro LED ebonisa umbala ogcweleyo.