Ukuhlaziywa kolwazi lwe-LED common cathode technology

Ngemuva kweminyaka yokuthuthuka, isibonisi esijwayelekile se-anode ye-LED sesenze uchungechunge lwezimboni oluzinzile, olukhuthaze ukuthandwa kwesibonisi se-LED. Nokho, iphinde ibe nokushiyeka kokushisa komzimba kwesikrini esiphezulu ngokweqile kanye nokusetshenziswa kwamandla ngokweqile. Ngemuva kokuvela kobuchwepheshe obujwayelekile be-cathode LED ukubonisa amandla, kudonse ukunaka okukhulu emakethe yokubonisa i-LED. Le ndlela yokuphakela amandla ingafinyelela ukonga okuphezulu kakhulu kuka-75%, ngakho-ke ibuphi ubuchwepheshe obujwayelekile bokunikezwa kwamandla we-cathode LED display? Yiziphi izinzuzo zalobu buchwepheshe?

1. Iyini i-cathode LED display evamile?

 

"I-Common cathode" ibhekisela endleleni evamile yokunikeza amandla e-cathode. Eqinisweni, ubuchwepheshe bokonga amandla kusibonisi se-LED. U-B (obomvu, oluhlaza okotshani, oluhlaza okwesibhakabhaka) uhlinzekwa ngokuhlukana, futhi amandla amanje kanye ne-voltage asatshalaliswa ngokunembile kubuhlalu besibani sika-R, G, no-B, ngoba ubuhlalu besibani u-R, G, B (obomvu, obuluhlaza, obuluhlaza) budinga okungcono kakhulu. I-voltage yokusebenza kanye Nemisinga ayifani, ukuze i-current idlule ebuhlalu besibani bese i-electrode engalungile ye-IC, ukwehla kwe-voltage phambili kuzoncishiswa, futhi ukumelana kwangaphakathi kwe-conduction kuzoncishiswa.

 

2.Uyini umehluko phakathi kwe-cathode evamile/i-common anode LED display?

①. Izindlela zokuphakelwa kwamandla ezihlukene:

Imodi evamile yokunikezwa kwamandla e-cathode ukuthi okwamanje idlula ubuhlalu besibani kuqala, bese i-electrode engalungile ye-IC, ukuze ukwehla kwe-voltage phambili kuncishiswe, futhi ukumelana kwangaphakathi kwe-conduction nakho kuyancipha.

 

I-anode evamile isho ukuthi yamanje igeleza isuka ebhodini le-PCB iye kubuhlalu besibani, futhi inikeze amandla ku-R, G, no-B (obomvu, oluhlaza okotshani, noluhlaza okwesibhakabhaka) ngokufanayo, okubangela ukwehla kwamandla kagesi okuya phambili wesekethe kube kukhudlwana.

②. I-voltage yokunikezwa kwamandla ihlukile:

I-cathode evamile, izohlinzeka ngokuhlukana kwamanje kanye ne-voltage ku-R, G, B (obomvu, oluhlaza, oluhlaza okwesibhakabhaka). Ubuhlalu belambu elibomvu, eliluhlaza, neliluhlaza okwesibhakabhaka banezidingo zamandla kagesi ezihlukene. I-voltage yobuhlalu besibani esibomvu icishe ibe ngu-2.8V, kanti amandla kagesi obuhlalu besibani aluhlaza okwesibhakabhaka nokuluhlaza acishe abe ngu-3.8V. Lokhu kunikezwa kwamandla kungafinyelela ukunikezwa kwamandla okunembile kanye nokusetshenziswa kwamandla okuphansi. , Ukushisa okukhiqizwa isibonisi se-LED phakathi nomsebenzi nakho kuphansi kakhulu.

 

Ilanga elivamile ukunikeza i-voltage ephakeme kuno-3.8V (efana no-5V) ukuya ku-R, G, no-B (obomvu, oluhlaza okotshani, nokuluhlaza okwesibhakabhaka) ukuze kuhlinzekwe ukunikezwa kwamandla okuhlangene. Ngalesi sikhathi, ama-voltage abomvu, aluhlaza, naluhlaza okwesibhakabhaka wonke angu-5V ahlangene. Nokho, i-voltage elungile yokusebenza yobuhlalu belambu elibomvu, eliluhlaza, neliluhlaza okwesibhakabhaka iphansi kakhulu kuno-5V. Ngokusho kwefomula yamandla engu-P=UI, lapho i-current ingashintshi, i-voltage ephezulu, amandla aphezulu, okusho ukuthi Ukusetshenziswa kwamandla kukhulu, ngesikhathi esifanayo, isibonisi se-LED sizophinde sikhiqize ukushisa okwengeziwe phakathi nomsebenzi.

3.Kungani isibonisi se-LED se-cathode esivamile sinokushisa okuphansi?

 

Imodi ekhethekile yokuphakelwa kwamandla e-cathode yesikrini esibandayo yenza isibonisi se-LED sinciphe ukushisa nokukhuphuka kwezinga lokushisa eliphansi phakathi nenqubo yokusebenza. Ngaphansi kwezimo ezijwayelekile, izinga lokushisa lesikrini esibandayo lingaba ngu-20°C iphansi kunesibonisi se-LED esivamile sangaphandle semodeli efanayo esimweni sebhalansi emhlophe nalapho udlala ividiyo. Emikhiqizweni enokucaciswa okufanayo nokukhanya okufanayo, izinga lokushisa lesikrini lesibonisi se-LED cathode elivamile lingaphansi kwama-degree angu-20 ngaphansi kwalelo lomkhiqizo ojwayelekile ojwayelekile we-anode we-anode we-LED, futhi ukusetshenziswa kwamandla kungaphansi ngo-50% kunalokho umkhiqizo ojwayelekile we-anode we-LED wokubonisa. ngenhla.

 

Izinga lokushisa eliphezulu lesikrini sokubonisa i-LED kanye nokusetshenziswa kwamandla ngokweqile bekulokhu kuyizici ezibalulekile ezithinta impilo yesevisi yemikhiqizo yokubonisa i-LED, futhi "i-common cathode LED display" ingaxazulula lezi zinkinga ezimbili kahle.

 

4. Yiziphi izinzuzo zesibonisi se-LED cathode evamile?

 

①. Ukunikezwa kwamandla okunembile konga ngempela amandla:

Imikhiqizo evamile ye-cathode isebenzisa ubuchwepheshe obunembile bokulawula ukuphakelwa kwamandla, ngokusekelwe ezicini ezihlukahlukene ze-photoelectric ze-LED ebomvu, eluhlaza okwesibhakabhaka, ene-smart IC display kanye nohlelo lokulawula kanye nemodi yangasese ezimele, enikezela ngokunembile ama-voltages ahlukene ama-LED kanye namasekethe okushayela ukwenza umkhiqizo. ukusetshenziswa kwamandla kuqhathaniswa Imikhiqizo efanayo emakethe yonga cishe u-40% kagesi!

 

②. Ukonga amandla kwangempela kuletha imibala yangempela:

Indlela evamile yokushayela i-cathode ye-LED ingakwazi ukulawula ngokunembile i-voltage, futhi ngenkathi inciphisa ukusetshenziswa kwamandla, iphinde inciphise inani lokushisa. I-LED ayinakho ukukhukhuleka kwe-wavelength ngaphansi kokusebenza okuqhubekayo, futhi umbala weqiniso uboniswa ngokuzinzile!

 

③. Ukonga amandla kwangempela kuletha impilo ende:

Ukusetshenziswa kwamandla kuncishisiwe, ngaleyo ndlela kunciphisa kakhulu ukukhuphuka kwezinga lokushisa kwesistimu, kunciphisa ngempumelelo amathuba okulimala kwe-LED, ukuthuthukisa ukuzinza nokuthembeka kwalo lonke uhlelo lokubonisa, nokwelula kakhulu impilo yesistimu.

 

5. Uyini umkhuba wokuthuthukiswa kobuchwepheshe obuvamile be-cathode?

 

Ukusekela ubuchwepheshe bokubonisa obujwayelekile be-cathode be-LED, obufana ne-LED, ukunikezwa kwamandla, umshayeli we-IC, njll., akuvuthi njengochungechunge lwemboni ye-anode ye-LED evamile. Ngaphezu kwalokho, uchungechunge lwamanje lwe-cathode IC evamile aluphelele, futhi inani eliphelele alilikhulu, futhi i-anode evamile isathatha i-80% Market.

 

Inqubekelaphambili yamanje ehamba kancane yobuchwepheshe obuvamile be-cathode ibangelwa ikakhulukazi izindleko zokukhiqiza. Ngokusekelwe ekubambisaneni kochungechunge lokuhlinzeka, i-cathode evamile idinga ukubambisana okwenziwe ngokwezifiso kuzo zonke iziphetho zochungechunge lwezimboni njengama-chips, ukupakisha, ne-PCB, futhi izindleko ziphakeme kakhulu.

 

Kule nkathi yesidingo esikhulu sokongiwa kwamandla, ukuvela kwesibonisi se-LED esikhanyayo se-cathode sekuyiphoyinti lokusekela le mboni. Kodwa-ke, kusenendlela ende okufanele ihanjwe ukuze kuzuzwe ukukhushulwa okuphelele nokusetshenziswa ngomqondo omkhulu, okudinga imizamo ehlanganyelwe yemboni yonke. Isibonisi se-LED se-cathode esivamile, okuyindlela yokuthuthukiswa yokonga amandla, kuhilela ukusetshenziswa kukagesi nezindleko zokusebenza. Ngakho-ke, ukonga amandla kuhlobene nezintshisakalo zama-opharetha wesibonisi se-LED futhi kuhlobene nokusetshenziswa kwamandla kazwelonke.

 

Uma sibheka isimo samanje, isikrini esivamile se-cathode LED-saving energy ngeke sandise izindleko kakhulu kunesikrini esivamile sokubonisa, futhi sizosindisa izindleko ekusetshenzisweni kwakamuva, okudunyiswa kakhulu yimakethe.