Indlela Amaphaneli e-QLED Asebenza Ngayo Kumathelevishini Akamuva
Eminyakeni yamuva nje, ubuchwepheshe bokubonisa ithelevishini buthuthuke ngokushesha. Nakuba ngaphambilini abantu babesazi i-LCD ne-LED kuphela njengamagama ajwayelekile, manje sekuvele amagama amasha ahlukahlukene, njenge-OLED, i-Mini-LED, ne-QLED. Phakathi kwalezi zinketho, i-QLED isibe ngolunye lobuchwepheshe obusetshenziswa kakhulu kumathelevishini aphakathi nendawo kuya kwe-premium ngoba inikeza imibala egqamile, amazinga okukhanya aphezulu, kanye nokuqina kwesikrini okuhle. Kodwa-ke, abantu abaningi basazibuza: amaphaneli e-QLED asebenza kanjani ngempela kumathelevishini akamuva? Lesi sihloko sizoxoxa ngezimiso eziyisisekelo ze-QLED, izingxenye ezihilelekile, kanye nezinzuzo kanye nemikhawulo yayo.
Kuyini i-QLED?
I-QLED imele i-Quantum-dot Light Emitting Diode. Nakuba igama liqukethe igama elithi "LED," i-QLED akuyona ubuchwepheshe bokubonisa "obuzikhiphayo" njenge-OLED. Ngokuvamile, i-QLED iyinguquko ye-LCD esebenzisa ungqimba lwamachashazi e-quantum ukuthuthukisa ikhwalithi yombala. Lokhu kusho ukuthi amaphaneli e-QLED asathembele ekukhanyeni kwangemuva ukukhiqiza ukukhanya, okube sekucutshungulwa ngezendlalelo ezahlukahlukene ngaphambi kokwakha isithombe esikrinini.
Ngenxa yalesi sizathu, i-QLED ivame ukubizwa ngokuthi i-LCD enokuthuthukiswa kwamachashazi e-quantum. Kumathelevishini akamuva, i-QLED ivame ukuhlanganiswa nezinhlelo zokukhanyisa zesimanje ezifana ne-Full Array Local Dimming (FALD) noma i-Mini-LED, okuholela ekusebenzeni okungcono kakhulu kune-LED LCDs evamile.
Izingxenye Eziyinhloko Zephaneli ye-QLED
Ukuze siqonde ukuthi i-QLED isebenza kanjani, sidinga ukubheka ukuhlelwa kwezingqimba eziningana ezibalulekile kuphaneli kamabonakude, okuhlanganisa:
1. Isibani sangemuva
2. Ipuleti Lokuqondisa Ukukhanya / Isifutho Sokukhanya (Isifutho Sokukhanya)
3. Isendlalelo samachashazi e-Quantum
4. Isihlungi Sombala
5. Isendlalelo sekristalu eliwuketshezi
6. I-Polarizer (Isihlungi se-Polarization)
7. Isendlalelo se-TFT (i-Pixel Control Transistor)
Isendlalelo ngasinye sinomsebenzi othize, futhi zonke zisebenza ndawonye ukuqinisekisa ukuthi isithombe osibona esikrinini sikhanya, sibukhali, futhi sinembile ngombala.
Izinyathelo Zokuthi Iphaneli ye-QLED Isebenza Kanjani
1. Isibani sangemuva sikhiqiza ukukhanya okuyisisekelo
Ngenxa yokuthi i-QLED isekelwe ku-LCD, umthombo wokukhanya oyinhloko uvela ekukhanyeni kwangemuva. Isizukulwane sakamuva samathelevishini e-QLED ngokuvamile sisebenzisa ama-LED aluhlaza okwesibhakabhaka njengomthombo wawo wokukhanya, njengoba i-spectrum eluhlaza okwesibhakabhaka isebenza kahle kakhulu "ekusebenzeni" kwamachashazi e-quantum.
Ezinhlotsheni ezithile, isibani sangemuva singaba:
– Kukhanyiswe ngomphetho: Ama-LED atholakala onqenqemeni lwesikrini, futhi ukukhanya kuqondiswe phakathi nendawo. Kuncane futhi kushibhile, kodwa ukufiphala kwendawo kulinganiselwe kakhulu.
– I-Direct-light / Full Array: Ama-LED asatshalaliswa ngokulinganayo ngemuva kwephaneli, okuvumela ukulawula ukukhanya okungcono.
– I-Mini-LED: inguqulo encane ye-LED evamile, enenani elikhulu kakhulu layo, okuvumela ukulawulwa okunembe kakhudlwana kwendawo yokukhanya (indawo yokufiphala).
Lesi sigaba sinquma ukuthi i-TV ingabonisa ukukhanya okungakanani, ikakhulukazi uma ubuka okuqukethwe kwe-HDR.
2. Ukukhanya kusatshalaliswa ngokulinganayo
Uma isibani sangemuva sesivuliwe, ukukhanya kudlula epuletini lokuqondisa isibani kanye/noma elokusabalalisa ukukhanya. Lolu ngqimba lusabalalisa ukukhanya ngokulinganayo ukuze kuvinjelwe izindawo ezikhanyayo noma ezimnyama (ama-hotspots). Lokhu kuphumela ekubonisweni okuvumelanayo esikrinini sonke.
3. Isendlalelo samachashazi e-quantum sishintsha i-spectrum yokukhanya.
Lokhu kuyingqikithi yobuchwepheshe be-QLED. Amachashazi e-quantum ayizinhlayiya ze-nanometer ezingakhipha ukukhanya kuma-wavelength athile lapho zikhanyiswa. Ku-QLED, ukukhanya okuluhlaza okwesibhakabhaka okuvela ekukhanyeni kwangemuva kushaya ungqimba lwamachashazi e-quantum, lapho okunye kwakho kuguqulwa khona kube ukukhanya okubomvu nokuluhlaza "okumsulwa" kakhulu.
Kalula nje:
- Ama-LED aluhlaza okwesibhakabhaka akhiqiza ukukhanya okuluhlaza okwesibhakabhaka okuqinile
– Amachashazi e-quantum “aguqula” ukukhanya okuluhlaza okwesibhakabhaka kube obomvu noluhlaza okotshani.
– Umphumela uba inhlanganisela engcono kakhulu yama-spectrum ukukhiqiza imibala ebanzi necebile.
Ngenxa yokuthi amachashazi e-quantum akhiqiza imibala ene-spectrum encane (ecacile kakhulu), i-QLED iyakwazi ukudala ivolumu yombala omuhle—okungukuthi, imibala isabonakala icebile ngisho nasezingeni eliphezulu lokukhanya.
4. Isihlungi sombala sihlunga umbala ube ama-RGB subpixels.
Ngemva kokudlula ku-quantum dot, ukukhanya kudlula kusihlungi sombala esihlukanisa ukukhanya kube izingxenye ezintathu eziyinhloko: obomvu (R), oluhlaza (G), noluhlaza okwesibhakabhaka (B). Iphikseli ngayinye esikrinini empeleni yenziwe ngama-subpixel amathathu e-RGB. Ukuqina okuhlangene kwalawa amathathu kukhiqiza izigidi kuya ezigidini zemibala ehlukahlukene.
Isendlalelo sesihlungi sombala sisebenza njenge "sango lombala", siqinisekisa ukuthi ukukhanya okuphuma ku-subpixel ngayinye kufana nombala owufunayo.
5. Amakristalu ewuketshezi alawula ukuthi kungakanani ukukhanya okudlulayo.
Ingxenye ye-LCD (ikristalu eliwuketshezi) inesibopho sokulawula ukukhanya kwephikseli ngayinye. Amakristalu ewuketshezi awakhiphi ukukhanya, kodwa kunalokho ajikeleza indlela yokukhanya kwe-polarisation. Ngosizo lwama-polarizers ngaphambili nangemuva, amakristalu ewuketshezi angalawula ukuthi ukukhanya kuyadluliselwa noma kuvinjiwe.
Uma kunikezwa isignali kagesi:
– Amakristalu oketshezi ashintsha indlela obheka ngayo izinto
– Ukushintsha kwendlela yokukhanya kulawula izinga lokukhanya elingadlula kuma-subpixel.
– Yilokhu okwakha isithombe esimnyama (esingafani) esikrinini.
Amaphaneli e-QLED esimanje angasebenzisa izinhlobo ezahlukene ze-LCD, njenge-VA noma i-IPS, okuthinta izici zokubonisa ezifana nokuqhathanisa nama-engeli okubuka.
6. I-TFT ilawula iphikseli ngayinye ngokunembile
Ngemuva kwesendlalelo sekristalu eliwuketshezi kukhona i-TFT (Thin Film Transistor) elawula i-voltage ye-subpixel ngayinye. I-TFT idlala indima ekugcineni ukulawulwa kwamaphikseli okuzinzile nokunembile, ivimbela ukuphazamiseka kwesithombe njengokufiphaza, ukufiphaza, noma ukungalingani.
Uma ikhwalithi yokulawula i-TFT kanye nokucutshungulwa kwezithombe ingcono, kulapho izinguquko ze-gradient zibushelelezi khona futhi ukubopha okuncane kokuqukethwe okuthile kuyancipha.
Indima Yokufiphaza Kwendawo Kuma-TV Akamuva E-QLED
Enye yezinselele ezinkulu ngama-LCD amazinga amnyama. Ngenxa yokuthi asebenzisa isibani sangemuva, kungenzeka ukuvuza kokukhanya, okwenza abamnyama babonakale bempunga. Ukuze kuxazululwe lokhu, ama-TV akamuva e-QLED avame ukusebenzisa ukufiphala kwendawo: izindawo ezithile zesibani sangemuva zingafiphala noma zicinywe ukuze zivumelane nezidingo zesithombe.
Uma kuboniswa isigcawu sasebusuku esinezibani ezincane:
– Izindawo zokukhanya kwangemuva ezindaweni ezimnyama ziyafiphala
– Indawo esendaweni ekhanyayo ihlala ikhanya kakhulu
- Umehluko uyandiswa futhi imininingwane ibonakala kakhulu
I-Mini-LED yenza ukufiphala kwendawo kusebenze kangcono ngoba kunezindawo eziningi, ngakho-ke umphumela “we-halo” (oqhakazayo) ozungeze izinto ezikhanyayo nawo ungancishiswa.
Izinzuzo ze-QLED kumathelevishini akamuva
1. Ukukhanya okuphezulu
Ifanele amakamelo akhanyayo kanye nokuqukethwe kwe-HDR, njengoba ikwazi ukukhiqiza izici ezigqamile neziqinile.
2. Imibala ecebile futhi ezinzile
Amachashazi e-quantum andisa ubumsulwa bombala, okuhlanganisa nokukhanya okuphezulu.
3. Ingozi ephansi yokusha
Ngenxa yokuthi ayizikhiphi njenge-OLED, i-QLED ngokuvamile iphephile kakhulu kwizibonisi ezihlala isikhathi eside (ama-logo e-TV, ama-HUD omdlalo).
4. Amanani ahlukahlukene kakhulu
Kunezinketho eziningi ze-QLED ezinhlobonhlobo zamanani, ikakhulukazi uma kuqhathaniswa nama-OLED aphezulu.
Imikhawulo ye-QLED Okudingeka Uyazi
1. Amabala amnyama awajulile njenge-OLED
Ngenxa yokuthi kusekhona ukukhanya kwangemuva, kunzima ukukufeza ukuba mnyama ngokuphelele, yize ukufiphala kwendawo kusiza.
2. Amandla okuqhakaza
Ezigcawini ezigqamile, izinto ezikhanyayo zingabangela ukukhanya "kopha" kungemuva elimnyama, ikakhulukazi uma indawo ilinganiselwe.
3. I-engeli yokubuka incike ohlotsheni lwephaneli
Amaphaneli e-VA ngokuvamile anokugqama okuphezulu kodwa ama-engeli okubuka amancane; i-IPS iphambene nalokho.
Isiphetho
Amaphaneli e-QLED kumabonakude akamuva asebenza ngokuhlanganisa ubuchwepheshe be-LCD nesendlalelo samachashazi e-quantum esithuthukisa ububanzi bombala. Ukukhanya okuvela ekukhanyeni kwangemuva—ngokuvamile i-LED eluhlaza okwesibhakabhaka—kucutshungulwa ngamachashazi e-quantum ukuze kukhiqizwe imibala ebomvu neluhlaza okotshani emsulwa, elawulwa ngamakristalu e-liquid kanye nesistimu ye-TFT transistor ukuze kwakheke isithombe. Kumamodeli akamuva, i-QLED ithuthukiswa kakhulu ngokuhlanganiswa nobuchwepheshe bendawo obuthuthukisiwe bokufiphaza njenge-FALD kanye ne-Mini-LED, okuholela ekuqhathaniseni okuthuthukisiwe kakhulu kanye nokusebenza kwe-HDR.
Kubasebenzisi abafuna i-TV enemibala ekhanyayo, egqamile kanye nesikhathi eside sokusetshenziswa kwansuku zonke kanye nokudlala imidlalo, i-QLED iyindlela ekhangayo. Kodwa-ke, uma izinto eziza kuqala kuwe zimnyama eziphelele kanye nokugqama okukhulu, ubuchwepheshe be-OLED buhlala buyisinqumo esikhethwayo. Ekugcineni, ukuqonda ukuthi i-QLED isebenza kanjani kusisiza sikhethe ithelevishini efanele izidingo zethu kanye nezimo zegumbi.
Uma ufuna, ngingangeza ithebula eliqhathanisa i-QLED vs OLED vs Mini-LED, noma nginikeze izincomo ngamapharamitha abalulekile lapho ngikhetha i-QLED TV (ukukhanya kwe-nits, inani lezindawo zokufiphala, uhlobo lwephaneli ye-VA/IPS, kanye nokusekelwa kwe-HDR).
