Izigaba zama-LED anezikhala ezincane zikhuphukile, futhi seziqalile ukuqhudelana ne-DLP ne-LCD emakethe yokubukisa endlini. Ngokuya ngemininingwane esikalini semakethe yokubonisa i-LED yomhlaba, kusukela ngo-2018 kuya ku-2022, izinzuzo zokusebenza kwemikhiqizo emincane yokubonisa i-LED zizoba sobala, kwakheke umkhuba wokushintsha ubuchwepheshe bendabuko be-LCD ne-DLP.
Ukusatshalaliswa kwemboni kwamakhasimende we-LED amancane
Eminyakeni yamuva nje, ama-LEDs amancane azuze ukuthuthuka okusheshayo, kepha ngenxa yezindleko nezinkinga zobuchwepheshe, okwamanje zisetshenziswa kakhulu ezinkambeni zokubonisa zobuchwepheshe. Lezi zimboni azizweli kuzintengo zomkhiqizo, kepha zidinga ikhwalithi ephezulu yokubonisa, ngakho-ke zihlala ngokushesha emakethe emkhakheni wezikhangiso ezikhethekile.
Ukuthuthukiswa kwama-LED amancane kusuka ezimakethe zokubonisa ezinikezelwe kuya ezimakethe zezohwebo nezomphakathi. Ngemuva kuka-2018, njengoba ubuchwepheshe bukhula futhi izindleko zincipha, ama-LED amancane aqhume ezimakethe zokubonisa ezentengiso ezinjengamakamelo ezinkomfa, ezemfundo, izinxanxathela zezitolo, nezinkundla zemidlalo yama-movie. Isidingo sama-LED amancane asezingeni eliphakeme ezimakethe zaphesheya siyashesha. Abakhiqizi abayisikhombisa kwabaphezulu abayisishiyagalombili be-LED abavela eChina, kanti abakhiqizi abaphezulu abayisishiyagalombili benza u-50.2% wesabelo semakethe yomhlaba. Ngikholwa wukuthi njengoba ubhadane olusha lomqhele luzinza, izimakethe zaphesheya kwezilwandle zizothuthuka kungekudala.
Ukuqhathanisa i-LED encane ye-pitch, iMini LED, ne-Micro LED
Ubuchwepheshe bokukhombisa obungenhla bonke bususelwa kuzinhlayiya ze-crystal ezincane njengamaphoyinti akhanyayo we-pixel, umehluko uhlala ebangeni eliphakathi kobuhlalu besibani obusondelene nosayizi we-chip. I-Mini LED ne-Micro LED ngokuqhubekayo banciphisa isikhala sobuhlalu besibani nosayizi we-chip ngesisekelo sama-LED amancane, okuyindlela ejwayelekile nokuqondiswa kokuthuthuka kobuchwepheshe besikhathi esizayo.
Ngenxa yomehluko kusayizi we-chip, izinkambu ezahlukahlukene zohlelo lokusebenza lobuchwepheshe zizohluka, futhi iphimbo elincane le-pixel lisho ibanga lokusondela.
Ukuhlaziywa kobuchwepheshe bokupakisha be-LED obuncane
SMDisifinyezo sedivayisi yokukhweza ebusweni. I-chip engenalutho igxiliswe kubakaki, futhi ukuxhumana kagesi kwenziwa phakathi kwama-electrode amahle nalawo angalungile ngocingo lwensimbi. I-epoxy resin isetshenziselwa ukuvikela ubuhlalu bezibani ze-SMD LED. Isibani se-LED senziwa nge-soldering evuliwe. Ngemuva kokuthi ubuhlalu bufakwe nge-PCB ukwakha imodyuli yeyunithi yokubonisa, imodyuli ifakwa ebhokisini elingaguquki, bese kufakwa amandla kagesi, ikhadi lokulawula kanye nocingo ukwakha isikrini se-LED esiphelile.
Uma kuqhathaniswa nezinye izimo zokupakisha, izinzuzo zemikhiqizo ehlanganisiwe ye-SMD zidlula okubi, futhi zihambisana nezimpawu zokufunwa kwemakethe yasekhaya (ukuthatha izinqumo, ukuthenga nokusebenzisa). Futhi iyimikhiqizo ejwayelekile embonini futhi ingathola ngokushesha izimpendulo zensizakalo.
COBinqubo ukunamathela ngqo i-chip ye-LED ku-PCB enenamathisela eqhubayo noma engeyona eye-conductive, futhi yenze ukubopha ngocingo ukufeza ukuxhumana ngogesi (inqubo enhle yokufaka) noma ukusebenzisa ubuchwepheshe be-chip flip-chip (ngaphandle kwezintambo zensimbi) ukwenza okuhle nokubi Ama-electrode wobuhlalu besibani axhumeke ngqo ekuxhumekeni kwe-PCB (ubuchwepheshe be-flip-chip), futhi ekugcineni kwakhiwa imodyuli yeyunithi yokubonisa, bese imodyuli ifakwa ebhokisini elinqunyelwe, elinikezwa ugesi, ikhadi lokulawula nocingo, njll. yakha isikrini sokubonisa se-LED esiphelile. Inzuzo yobuchwepheshe be-COB ukuthi yenza lula inqubo yokukhiqiza, inciphise izindleko zomkhiqizo, inciphise ukusetshenziswa kwamandla, ngakho-ke izinga lokushisa lokubonisa liyancipha, futhi umehluko wenziwa ngcono kakhulu. Okubi ukuthi ukuthembeka kubhekene nezinselelo ezinkulu, kunzima ukulungisa isibani, futhi ukugqama, umbala nombala weyinki kusenzima ukukwenza Ukuvumelana.
IMDihlanganisa ama-N amaqembu ubuhlalu bezibani ze-RGB kuyunithi encane ukwakha ubuhlalu besibani. Umzila omkhulu wobuchwepheshe: I-Common Yang 4 ku-1, i-Common Yin 2 ku-1, i-Common Yin 4 ku-1, i-Common Yin 6 ku-1, njll. Inzuzo yayo ilele ezinzuzweni zokupakisha okuhlanganisiwe. Usayizi wobuhlalu besibani bukhulu, ukukhweza kwendawo kulula, futhi iphimbo elincane lamachashazi lingatholakala, elehlisa ubunzima bokugcinwa. Ububi bayo ukuthi uchungechunge lwamanje lwezimboni aluphelele, intengo iphezulu, futhi ukuthembeka kubhekene nezinselelo ezinkulu. Ukulungiswa kuphazamisa, futhi ukungaguquguquki kokugqama, umbala nombala weyinki akuxazululiwe futhi kudinga ukuqhutshekiswa phambili.
I-LED encaneukudlulisa inani elikhulu lokukhuluma lisuka kumalungu afanayo we-LED kanye nokwenza okuncane kwi-substrate yesifunda ukwakha ama-LED we-ultra-fine-pitch. Ubude bezinga le-millimeter le-LED babuye bancishiselwa ezingeni le-micron ukufeza amaphikseli aphezulu kakhulu nokuxazululwa okuphezulu kakhulu. Ngokwethiyori, ingashintshwa ibe ngosayizi abahlukahlukene besikrini. Njengamanje, ubuchwepheshe obuyinhloko ebhodleleni le-Micro LED wukungena ngenqubo yobuchwepheshe be-miniaturization nobuchwepheshe bokudlulisa ngobuningi. Okwesibili, ubuchwepheshe obuncane bokudlulisa ifilimu bungadabula umkhawulo wosayizi bese buqedela ukudluliswa kweqoqo, okulindeleke ukuthi kunciphise izindleko.
I-GOBubuchwepheshe bokumboza yonke indawo yamamojula wokuphakama komhlaba. Ifaka ungqimba lwama-colloid asobala ebusweni bamamojula wendabuko amancane we-SMD ukuxazulula inkinga yokuma okuqinile nokuvikelwa. Ngamafuphi, kusengumkhiqizo we-SMD omncane. Inzuzo yayo ukunciphisa amalambu afile. Kwandisa amandla wokulwa nokwethuka nokuvikelwa kwendawo kobuhlalu besibani. Ububi bayo ukuthi kunzima ukulungisa isibani, ukuguquguquka kwemodyuli ebangelwe yingcindezi ye-colloidal, ukubonakaliswa, ukwehliswa kwendawo, ukushintsha kombala kwe-colloidal, nokulungiswa okunzima kwe-welding ebonakalayo.
Isikhathi Iposi: Jun-16-2021