Mid ka mid ah su'aalaha ugu badan ee la isweydiiyo ee ku saabsan muraayadaha LED-ka ayaa ah inay u baahan yihiin nalka dambe. Fahamka farqiga u dhexeeya tignoolajiyada bandhiga ayaa fure u ah ka jawaabista su'aashan, maadaama noocyada kala duwan ee shaashadaha, sida LED iyo LCD, ay ku shaqeeyaan mabaadi'da kala duwan. In blog this, waxaan ku sahamin doonaa doorka backlight ee bandhigyo kala duwan, iyo si gaar ah haddii screen LED u baahan yahay iyo in kale.
1. Waa maxay Iftiinka dambe ee Bandhigyada?
Iftiinka dambe waxa loola jeedaa isha iftiinka loo isticmaalo gadaasha muraayadda si loo iftiimiyo sawirka ama waxa la soo bandhigayo. Inta badan, ilayskan iftiinka ah ayaa lagama maarmaan u ah inuu muujiyo shaashadda, maadaama ay bixiso iftiinka lagama maarmaanka ah ee pixels si ay u muujiyaan midabada iyo sawirada si cad.
Tusaale ahaan, shaashadaha LCD (Liquid Crystal Display), kiristaalo dareeraha ah laftoodu ma soo baxaan iftiin. Taa baddalkeeda, waxay ku tiirsan yihiin iftiinka dambe (caado ahaan fluorescent, laakiin hadda sida caadiga ah LED) si ay u iftiimiyaan pixels-ka gadaal, iyaga oo u oggolaanaya inay muujiyaan sawir.
2. Farqiga Muhiimka ah ee u dhexeeya LED-yada iyo Shaashadaha LCD
Kahor intaanan wax ka qaban in muraayadaha LED-ku u baahan yihiin iftiin dambe, waa lagama maarmaan in la caddeeyo farqiga u dhexeeya LCD iyo muraayadaha LED:
Shaashado LCD: Tignoolajiyada LCD waxay ku tiirsan tahay iftiinka dambe sababtoo ah kiristaalada dareeraha ah ee lagu isticmaalo bandhigyadan ma soo saaraan iftiinkooda. Shaashadaha casriga ah ee LCD waxay inta badan adeegsadaan laydhka dambe ee LED, taas oo keenta ereyga "LED-LCD" ama "LED-backlit LCD." Xaaladdan oo kale, "LED" waxaa loola jeedaa isha iftiinka, ma aha tignoolajiyada soo bandhigida lafteeda.
Shaashadaha LED-ka ( LED-ga dhabta ah): Muujinta dhabta ah ee LED-ka, pixel kastaa waa diode iftiin-bixiye ah (LED). Tani waxay ka dhigan tahay in LED kastaa uu soo saaro iftiin u gaar ah, loomana baahna iftiin dambe oo gooni ah. Shaashadaha noocaan ah waxaa caadi ahaan laga helaa bandhigyada dibadda, boorarka dhijitaalka ah, iyo darbiyada fiidyowga LED-ka.
3. Shaashadaha LED-ku miyay u baahan yihiin nalka dambe?
Jawaabta fudud waa maya—Sharashooyinka dhabta ah ee LED uma baahna iftiin danbe. Waa tan sababta:
Pixels-Isku Iftiiminaya: Bandhigyada LED-ka, pixel kastaa waxa uu ka kooban yahay diode iftiin-bixiya oo yar oo si toos ah u soo saara iftiin. Mar haddii pixel kasta uu soo saaro iftiin u gaar ah, looma baahna ilo iftiin dheeraad ah oo ka dambeeya shaashadda.
Isbarbardhigga Wanaagsan iyo Madowga Qoto dheer: Sababtoo ah shaashadaha LED kuma tiirsana iftiinka dambe, waxay bixiyaan saamiyo isbarbardhig wanaagsan iyo madow qoto dheer. Bandhigyada LCD ee leh iftiinka dambe, way adkaan kartaa in la gaaro madow run ah maadaama iftiinka dambe aan si buuxda loo damin karin meelaha qaarkood. Shaashadaha LED-yada, pixels-ka gaarka ahi si buuxda ayey u demi karaan, taasoo keentay madaw run ah iyo kala duwanaansho la xoojiyay.
4. Codsiyada caadiga ah ee Shaashadaha LED
Shaashado dhab ah oo LED ah ayaa caadi ahaan loo isticmaalaa waxqabadyo kala duwan oo heer sare ah iyo codsiyo baaxad leh halkaasoo dhalaalka, isbarbardhigga, iyo midabada cad ay muhiim yihiin:
Boodhadhka LED-ka ee bannaanka: Shaashado waaweyn oo LED ah oo loogu talagalay xayeysiisyada iyo calaamadaha dhijitaalka ah ayaa caan ah sababtoo ah dhalaalkooda sare iyo muuqaalkooda, xitaa iftiinka qorraxda tooska ah.
Garoomada Isboortiga iyo Riwaayadaha: Shaashadaha LED-ka ayaa si weyn loogu isticmaalaa garoomada iyo goobaha riwaayadaha si ay u muujiyaan nuxurka firfircoon ee saxnaanta midabka sare iyo muuqaalka meel fog.
Darbiyada LED-ka ee gudaha: Kuwan waxaa badanaa lagu arkaa qolalka kantaroolka, istuudiyaha baahinta, iyo meelaha tafaariiqda, iyagoo bixiya bandhigyo heer sare ah oo leh isbarbardhig aad u wanaagsan.
5. Ma jiraan shaashado LED ah oo isticmaala iftiinka dambe?
Farsamo ahaan, alaabooyinka qaarkood ee lagu calaamadeeyay "shaashadaha LED" waxay isticmaalaan nalka gadaal, laakiin kuwani dhab ahaantii waa bandhigyo LCD-dab-yar oo LED ah. Shaashadahani waxay isticmaalaan guddi LCD ah oo leh nalka dambe ee LED si loo hagaajiyo iftiinka iyo waxtarka tamarta. Si kastaba ha noqotee, kuwani maaha bandhigyo LED oo run ah.
Shaashadaha dhabta ah ee LED-ka, looma baahna iftiin danbe, maadaama diode-yada iftiimiya ay yihiin isha iftiinka iyo midabka labadaba.
6. Faa'iidooyinka Shaashadaha dhabta ah ee LED
Shaashadaha dhabta ah ee LED waxay bixiyaan faa'iidooyin dhowr ah oo muhiim ah marka loo eego tignoolajiyada soo jireenka ah:
Iftiinka Sare: Maadaama pixel kasta uu iftiimiyo iftiinkiisa, muraayadaha LED waxay gaari karaan heerar dhalaalaya oo aad u sarreeya, iyaga oo ku habboon codsiyada gudaha iyo dibaddaba.
Isbarbardhigga La Hagaajiyay: Awoodda lagu demiyo pixels-ka gaarka ah, shaashadaha LED-ku waxay bixiyaan saamiyo isbarbardhig oo ka sii wanaagsan iyo madow qoto dheer, iyagoo kor u qaadaya tayada sawirka.
Waxtarka Tamarta: Bandhigyada LED-yadu waxay ka tamar badan yihiin shaashadaha LCD-da dambe, sababtoo ah waxay isticmaalaan oo keliya halka iftiinka looga baahan yahay, halkii ay iftiimin lahaayeen dhammaan shaashadda.
Cimri dheer: LED-yadu guud ahaan waxay leeyihiin cimri dherer, inta badan waxay dhaafaan 50,000 ilaa 100,000 saacadood, taas oo macnaheedu yahay in muraayadaha LED-ku ay sii jiri karaan sanado badan oo leh hoos u dhac yar oo dhalaalaya iyo waxqabadka midabka.
Gabagabo
Marka la soo koobo, shaashadaha dhabta ah ee LED uma baahna iftiin danbe. pixel kasta oo ku jira muraayada LED waxay soo saartaa iftiin u gaar ah, taasoo ka dhigaysa muujinta mid iskeed u ifaysa. Farsamadan waxay bixisaa faa'iidooyin dhowr ah, oo ay ku jiraan kala duwanaansho sare, madow qoto dheer, iyo iftiin sare. Si kastaba ha ahaatee, waxaa muhiim ah in la kala saaro inta udhaxeysa bandhigyada LED-yada dhabta ah iyo LCD-yada dib-u-celinta LED-ka, maadaama kan dambe uu u baahan yahay nalka dambe.
Haddii aad raadinayso bandhig leh tayada muuqaal aad u wanaagsan, cimri dheer, iyo hufnaanta tamarta, shaashadda LED-ka ee dhabta ah waa doorasho aad u fiican-looma baahna iftiin dambe!
Waqtiga post: Seb-07-2024