Yadda Fanelolin QLED ke Aiki akan Sabbin Talabijin
A cikin 'yan shekarun nan, fasahar nuna talabijin ta bunƙasa cikin sauri. Duk da cewa a da mutane sun san LCD da LED ne kawai a matsayin kalmomi na gabaɗaya, yanzu sabbin sunaye daban-daban sun bayyana, kamar OLED, Mini-LED, da QLED. Daga cikin waɗannan zaɓuɓɓukan, QLED ta zama ɗaya daga cikin fasahohin da ake amfani da su sosai a cikin talabijin masu matsakaicin matsayi zuwa na zamani saboda tana ba da launuka masu haske, matakan haske mai yawa, da kuma kyakkyawan juriyar allo. Duk da haka, mutane da yawa har yanzu suna mamakin: ta yaya bangarorin QLED ke aiki a cikin sabbin talabijin? Wannan labarin zai tattauna ƙa'idodin QLED, abubuwan da ke ciki, da fa'idodi da iyakokinsa.
Menene QLED?
QLED na nufin Quantum-dot Light Emitting Diode. Duk da cewa sunan ya ƙunshi kalmar "LED," QLED ba fasahar nuni ce ta "kai-tsaye" kamar OLED ba. Gabaɗaya, QLED juyin halittar LCD ne wanda ke amfani da layin dot na quantum don inganta ingancin launi. Wannan yana nufin cewa bangarorin QLED har yanzu suna dogara ne akan hasken baya don samar da haske, wanda daga nan ake sarrafa shi ta hanyoyi daban-daban kafin a ƙarshe a samar da hoto akan allon.
Saboda wannan dalili, ana kiran QLED da LCD mai ƙarfin hasken quantum dot. A cikin sabbin talabijin, yawanci ana haɗa QLED da tsarin hasken zamani kamar Full Array Local Dimming (FALD) ko Mini-LED, wanda ke haifar da ingantaccen aiki fiye da LCD na LED na yau da kullun.
Babban Abubuwan da ke cikin QLED Panel
Domin fahimtar yadda QLED ke aiki, muna buƙatar duba tsarin wasu muhimman matakai a cikin allon talabijin, gami da:
1. Hasken Baya
2. Farantin Jagorar Haske / Mai Rarraba Haske (Mai Rarraba Haske)
3. Tsarin Dot na Kwantiragi
4. Matatar Launi
5. Layer na Ruwan Lu'ulu'u
6. Polarizer (Matsayin Polarization)
7. TFT Layer (Pixel Control Transistor)
Kowace layi tana da takamaiman aiki, kuma duk suna aiki tare don tabbatar da cewa hoton da kuke gani akan allon yana da haske, kaifi, kuma daidai yake da launi.
Matakai kan Yadda Panel na QLED ke Aiki
1. Hasken baya yana samar da haske na asali
Saboda QLED yana amfani da LCD, babban tushen haske yana fitowa ne daga hasken baya. Sabbin tsararrun talabijin na QLED gabaɗaya suna amfani da LEDs masu launin shuɗi a matsayin tushen haskensu, saboda shuɗin bakan shine mafi tasiri wajen "kunna" digo-digo na quantum.
A wasu nau'ikan, hasken baya na iya zama:
– Hasken gefen: LEDs suna gefen allon, kuma hasken yana fuskantar tsakiya. Sun fi siriri kuma sun fi arha, amma rage haske a yankin yana da iyaka.
– Hasken kai tsaye / Cikakken Jeri: LEDs suna rarraba daidai a bayan allon, wanda ke ba da damar sarrafa haske mafi kyau.
– Mini-LED: ƙaramin sigar LED na yau da kullun, tare da adadi mai yawa, wanda ke ba da damar sarrafa yankin haske daidai (yankin rage haske).
Wannan matakin yana ƙayyade yadda hasken talabijin zai iya nunawa, musamman lokacin kallon abubuwan HDR.
2. Hasken yana yaɗuwa daidai gwargwado
Da zarar an kunna hasken baya, hasken yana ratsa ta cikin na'urar watsawa da/ko farantin jagora na haske. Wannan Layer yana rarraba hasken daidai gwargwado don hana wurare masu haske ko duhu (wurare masu zafi). Wannan yana haifar da nuni mai daidaito a duk faɗin allon.
3. Tsarin ɗigon quantum yana canza hasken.
Wannan shine ainihin fasahar QLED. Ƙwayoyin Quantum sune ƙwayoyin nanometer waɗanda zasu iya fitar da haske a takamaiman raƙuman ruwa lokacin da aka haskaka su. A cikin QLED, hasken shuɗi daga hasken baya yana shafar layin ƙwanƙwasa, inda wasu daga cikinsu ake canza su zuwa haske ja da kore mai "tsarki".
Kawai:
- LEDs masu launin shuɗi suna samar da haske mai ƙarfi na shuɗi
– Digo-digogi na "juyawa" wasu daga cikin hasken shuɗi zuwa ja da kore.
– Sakamakon shine haɗuwa mafi kyau ta bakan gizo don samar da launuka masu faɗi da wadata.
Saboda ɗigon adadi yana samar da launuka masu kunkuntar bakan (mafi takamaiman), QLED yana iya ƙirƙirar kyakkyawan ƙarar launi - wato, launuka har yanzu suna da kyau ko da a matakan haske mai yawa.
4. Matatar launi tana tace launin zuwa ƙananan pixels na RGB.
Bayan ya ratsa ta cikin ɗigon quantum, haske yana ratsa ta cikin matattarar launi wadda ta raba hasken zuwa manyan sassa uku: ja (R), kore (G), da shuɗi (B). Kowane pixel da ke kan allon a zahiri ya ƙunshi ƙananan pixels guda uku na RGB. Haɗin ƙarfin waɗannan ukun yana samar da miliyoyin zuwa biliyoyin bambance-bambancen launi.
Matattarar tace launi tana aiki kamar "ƙofar launi", tana tabbatar da cewa hasken da ke fitowa daga kowace ƙaramin pixel ya dace da launin da ake so.
5. Lu'ulu'u masu ruwa suna daidaita adadin haske da ke ratsawa.
Bangaren LCD (ruwa lu'ulu'u) yana da alhakin sarrafa hasken kowane pixel. Lu'ulu'u masu ruwa ba sa fitar da haske, amma maimakon haka suna juya alkiblar polarization na haske. Tare da taimakon polarizers a gaba da baya, lu'ulu'u masu ruwa za su iya sarrafa ko haske yana yaɗuwa ko kuma yana toshewa.
Idan aka ba da siginar lantarki:
- Ruwan lu'ulu'u suna canza yanayin
- Canjin yanayin yana daidaita matakin hasken da zai iya ratsawa ta cikin ƙananan pixels.
– Wannan shine abin da ke samar da hoton haske-duhu (bambanci) akan allon.
Allon QLED na zamani na iya amfani da nau'ikan LCD daban-daban, kamar VA ko IPS, wanda ke shafar halayen nuni kamar bambanci da kusurwoyin kallo.
6. TFT tana sarrafa kowane pixel daidai
A bayan layin lu'ulu'u mai ruwa akwai TFT (Thin Film Transistor) wanda ke daidaita ƙarfin lantarki ga kowane ƙaramin pixel. TFT yana taka rawa wajen kiyaye daidaitaccen sarrafa pixel, yana hana rikice-rikicen hoto kamar walƙiya, fatalwa, ko rashin daidaito.
Ingancin ingancin sarrafa TFT da sarrafa hotuna, canjin gradient zai yi laushi kuma ƙarancin haɗakar wasu abubuwan.
Matsayin Rage Ragewar Gida a Sabbin Talabijin na QLED
Ɗaya daga cikin manyan ƙalubalen da ke tattare da LCDs shine matakan baƙi. Saboda suna amfani da hasken baya, hasken na iya ɓuɓɓuga, wanda ke sa baƙi su yi kama da launin toka. Don magance wannan, sabbin talabijin na QLED galibi suna amfani da rage haske na gida: ana iya rage haske ko kashe takamaiman wurare na hasken baya don dacewa da buƙatun hoton.
Idan ana nuna wani yanayi na dare tare da ƙananan fitilu:
- Yankunan hasken baya a cikin yankunan duhu suna duhu
- Yankin da ke cikin yankin mai haske yana ci gaba da haskakawa da haske
- An ƙara bambanci kuma cikakkun bayanai suna bayyana sosai
Mini-LED yana sa rage hasken gida ya fi tasiri saboda akwai ƙarin yankuna, don haka tasirin "halo" (blooming) a kusa da abubuwa masu haske shima za a iya rage shi.
Fa'idodin QLED akan Sabbin Talabijin
1. Haske mai yawa
Ya dace da ɗakuna masu haske da abun ciki na HDR, saboda yana iya samar da haske mai ƙarfi da haske.
2. Launuka masu wadata da karko
Digo-digo na Quantum suna ƙara tsarkin launi, gami da haske mai yawa.
3. Ƙananan haɗarin kamuwa da cutar
Saboda ba wai yana nuna kansa kamar OLED ba ne, QLED gabaɗaya ya fi aminci ga nunin faifai na dogon lokaci (tambayoyin TV, HUDs na wasa).
4. Ƙarin farashi daban-daban
Akwai zaɓuɓɓukan QLED da yawa a cikin kewayon farashi iri-iri, musamman idan aka kwatanta da manyan OLEDs.
Iyakokin QLED da Ya Kamata Ku Sani
1. Baƙaƙe ba su da "zurfi" kamar OLEDs
Saboda har yanzu akwai hasken baya, cikakken baƙar fata yana da wuya a cimma, kodayake rage haske a gida yana taimakawa.
2. Ƙarfin fure
A cikin yanayi masu bambanci sosai, abubuwa masu haske na iya sa haske ya "zubar da jini" zuwa wani wuri mai duhu, musamman idan yankin yana da iyaka.
3. Kusurwar kallo ta dogara da nau'in faifan
Allon VA gabaɗaya suna da babban bambanci amma suna da kunkuntar kusurwoyin kallo; IPS akasin haka ne.
Kammalawa
Allon QLED a cikin sabbin talabijin suna aiki ta hanyar haɗa fasahar LCD da layin dot na quantum wanda ke wadatar da launuka. Haske daga hasken baya - sau da yawa shuɗin LED - ana sarrafa shi ta hanyar digogin quantum don samar da launuka masu tsabta ja da kore, waɗanda daga nan ake sarrafa su ta hanyar lu'ulu'u masu ruwa da tsarin transistor na TFT don samar da hoton. A cikin sabbin samfuran, an ƙara inganta QLED ta hanyar haɗa shi da fasahohin rage haske na gida kamar FALD da Mini-LED, wanda ke haifar da ingantaccen bambanci da aikin HDR.
Ga masu amfani waɗanda ke son talabijin mai launuka masu haske da haske da tsawon rai don amfani da su na yau da kullun da kuma wasanni, QLED zaɓi ne mai kyau. Duk da haka, idan manyan abubuwan da kuka fi mayar da hankali a kai su ne cikakkun baƙaƙe da bambanci mai yawa, fasahar OLED ta kasance zaɓin da aka fi so. A ƙarshe, fahimtar yadda QLED ke aiki yana taimaka mana mu zaɓi talabijin da ya dace da buƙatunmu da yanayin ɗakinmu.
Idan kana so, zan iya ƙara teburi da ke kwatanta QLED da OLED da Mini-LED, ko kuma in ba da shawarwari kan muhimman sigogi yayin zabar TV na QLED (haske na nits, adadin yankunan rage haske, nau'in panel na VA/IPS, da tallafin HDR).
