1. Yini i-LED?
I-LED isifinyezo se-light emitting diode. Umgomo wobuchwepheshe be-luminescence ye-LED ukuthi izinto ezithile ze-semiconductor zizokhipha ukukhanya kobude obuthile begagasi lapho kusetshenziswa okwamanje. Lolu hlobo lukagesi olusebenza kahle ekuguquleni ukukhanya luphezulu kakhulu. Ukwelashwa kwamakhemikhali okuhlukahlukene kungenziwa ezintweni ezisetshenziselwa ukuthola ukukhanya okuhlukahlukene. Futhi ukubuka i-engeli ye-LED. Kuyisikrini esibonisa umbhalo, imifanekiso, izithombe, ukugqwayiza, izingcaphuno zemakethe, amavidiyo, amasiginali wevidiyo nolunye ulwazi ngokulawula imodi yokubonisa yama-semiconductor light-emitting diode.
2. Izikrini zokubonisa ze-LED zihlanganisa izinhlobo ezilandelayo.
Isibonisi se-LED esinombala ogcwele . Umbala ogcwele ubuye ubizwe ngemibala emithathu eyinhloko, iyunithi yokubonisa encane kakhulu eyakhiwe imibala emithathu eyinhloko ebomvu, eluhlaza, noluhlaza okwesibhakabhaka. Isikrini se-LED esinemibala egcwele sisetshenziswa ikakhulukazi ezikhumulweni zezindiza, eziteshini zikaloliwe, kumabhayisikobho, ezinxanxatheleni zezitolo nasezitejini.
Isibonisi se-LED esinemibala emibili. Isibonisi se-LED esinemibala embaxambili ngokuyinhloko sinokubomvu nokuluhlaza, obomvu nokuluhlaza okwesibhakabhaka. Phakathi kwazo, okubomvu nokuluhlaza yizona ezivame kakhulu. Imibukiso yemibala embaxambili isetshenziswa kakhulu kwezezimali, ezokuxhumana, ezibhedlela, ezokuphepha komphakathi, ezinxanxatheleni zezitolo, ezezimali kanye nentela.
Isibonisi se-LED esisodwa. Isibonisi se-LED esinombala owodwa sinokubomvu, okuphuzi, okuluhlaza okotshani, okuluhlaza okwesibhakabhaka, okumhlophe. Isibonisi se-LED esinombala owodwa sisetshenziswa kakhulu emapaki, ezindaweni zokupaka kanye nezitolo zezitolo.
Ngokuthuthuka kwezinga lokuphila, izidingo zabantu ziyaqhubeka nokwanda. Umbala owodwa kanye nezibonisi ze-LED ezinombala okabili kancane kancane zithathelwe indawo izibonisi ze-LED ezinombala ogcwele.
3. Ukwakheka okuyisisekelo kwesibonisi.
Isikrini sokubonisa se-LED sakhiwe ngamakhabethe e-LED (angahlukaniswa) kanye nekhadi lesilawuli (ikhadi lomthumeli nekhadi elitholayo). Ngakho-ke, isilawuli somthamo esifanelekile kanye namakhabethe e-LED angenza izibonisi ze-LED zosayizi ohlukile ukuze zihlangabezane nezidingo zezindawo ezihlukene kanye nezidingo zokubonisa ezihlukile.
4. Imingcele evamile yesikrini se-LED.
Eyodwa. Izinkomba ezibonakalayo
I-pixel pitch
Ibanga phakathi kwezikhungo zamaphikseli aseduze. (Iyunithi: mm)
Ukuminyana
Inani lamaphikseli endaweni yeyunithi (iyunithi: amachashazi/m2). Kunobudlelwane obuthile bokubala phakathi kwenani lamaphikseli kanye nebanga eliphakathi kwamaphikseli.
Ifomula yokubala ithi, ukuminyana=(1000/pixel ibanga elimaphakathi).
Ayanda ukuminyana of theIsibonisi se-LED, isithombe sicaca futhi siba sincane ibanga elingcono kakhulu lokubuka.
Ukucaba
Ukuchezuka okungalingani kwamaphikseli namamojula e-LED lapho kwakhiwa isikrini sokubonisa se-LED. Ukucaba okuhle kwesikrini se-LED akulula ukuthi kubangele umbala wesikrini se-LED ukuthi ungalingani uma ubuka.
Okubili. Izinkomba zokusebenza kukagesi
Isikali esimpunga
Ileveli yokukhanya engahlukaniswa kusukela kokumnyama kakhulu kuye kokugqama kakhulu ngezinga elifanayo lokukhanya kwesibonisi se-LED. Isikali esimpunga sibizwa nangokuthi isikali sombala noma isikali esimpunga, okubhekisela ezingeni lokukhanya. Ngobuchwepheshe bokuboniswa kwedijithali, isikali esimpunga siyisici esinqumayo senani lemibala ebonisiwe. Ngokuvamile, izinga elimpunga liphakeme, imibala eveziwe inothile, isithombe sithambile, futhi kuba lula ukuveza imininingwane ecebile.
Izinga elimpunga lincike kakhulu kumabhithi wokuguqula we-A/D wesistimu. Ivamise ukuhlukaniswa kube akukho grayscale, 8, 16, 32, 64, 128, 256 amazinga njll., Ukuba phezulu kwezinga elimpunga lesibonisi se-LED, umbala ocebile, nombala ogqamile.
Njengamanje, isibonisi se-LED sithatha ikakhulukazi isistimu yokucubungula engu-8-bit, okungukuthi, amazinga ampunga angama-256 (28). Ukuqonda okulula ukuthi kukhona izinguquko zokukhanya ezingama-256 ukusuka kokumnyama kuye kokumhlophe. Ukusebenzisa imibala emithathu eyinhloko ye-RGB kungakha imibala engu-256×256×256=16777216. Lokho kuvame ukubizwa ngemibala engu-16 mega.
Vuselela imvamisa yozimele
Isibonisi se-LED sesibonisi se-LED sokubuyekezwa kolwazi lwesikrini imvamisa.
Ngokuvamile, ingu-25Hz, 30Hz, 50Hz, 60Hz, njll. Uma iphakeme imvamisa yokushintsha uzimele, kuba ngcono ukuqhubeka kwesithombe esishintshiwe.
Vuselela imvamisa
Isibonisi se-LED sibonisa inani lezikhathi lapho idatha ikhonjiswa ngokuphindaphindiwe ngomzuzwana.
Ngokuvamile kuba ngu-960Hz, 1920Hz, 3840Hz, njll. Uma izinga lokuvuselela liphezulu, isibonisi sesithombe sizinze kakhulu. Uma isithombe, izinga lokuvuselela elihlukile linomehluko omkhulu.
5. Uhlelo lokubonisa
Isistimu yodonga lwevidiyo ye-LED yakhiwe izingxenye ezintathu, umthombo wesiginali, uhlelo lokulawula nesibonisi se-LED.
Umsebenzi oyinhloko wesistimu yokulawula ukufinyelela kwesignali, ukuguqulwa, inqubo, ukudlulisa nokulawula isithombe.
Isikrini esine-LED sibonisa okuqukethwe komthombo wesignali.
Isikhathi sokuthumela: Dec-10-2021
