Da'da dhijitaalka ah ayaa keentay tiro dhan tignoolajiyada bandhigga cusub. The Shaashadaha TFT LCD waxay ka mid yihiin tignoolajiyada wax ka beddelay warshadaha qalabka elegtarooniga ah sannadihii u dambeeyay. Bandhigyadan cusub ayaa u suurtageliyay soosaarayaasha inay keenaan is dhexgal isticmaale oo cusub, waqtiyo jawaab celin degdeg ah, iyo sawirro fiiqan oo ku saabsan aalado kala duwan oo kala duwan, laga bilaabo TV-yada ilaa taleefannada casriga ah iyo wax kasta oo u dhexeeya.
Maqaalkani wuxuu kugu hagi doonaa adduunka TFT LCD shaashadaha. TFT waxay u taagan tahay Filimka khafiifka ah Transistor Liquid Crystal (muuqaalka dareeraha dareeraha ah ee transistor-ka-filimka ah), halka LCD uu tixraacayo isticmaalkiisa guud ee inta badan aaladaha elektiroonigga ah sida telefishinada, kormeerayaasha kumbuyuutarka, iyo projectors, iyo kuwo kale. Haddii aad aqoon u leedahay aasaaska tignoolajiyada soo bandhigida, waxaad ku jirtaa kala badh.
Waa maxay shaashadda TFT LCD?
Shaashada TFT LCD waa a filim khafiif ah transistor bandhig elektaroonik ah (TFT). Tani waxay ka dhigan tahay sida shaashadda LCD ee caadiga ah, shaashaddani waxay sidoo kale isticmaashaa walxo crystal dareere ah. Si kastaba ha ahaatee, farqiga ugu muhiimsan ee u dhexeeya LCD-ga caadiga ah iyo TFT LCD waa habka dareeraha dareeraha ah ee loo isticmaalo TFT LCD. Si ka duwan shaashadda LCD-ga caadiga ah, oo ka shaqeysa in ay koronto u rogato shayga dareeraha ah ee dareeraha ah ee shid iyo damin, TFT waxay leedahay wareegga kontoroolka dhijitaalka ah. Kantaroolka nooca beddelka ah wuxuu u oggolaanayaa shaashadda inay soo bandhigto sawirro, oo ay ku jiraan qoraalka iyo sawirada.
Noocyada TFT-LCD
- matrix firfircoonShaxda firfircoon ee TFT LCD waxay isticmaashaa lakab khafiif ah oo ah walxo crystal dareere ah oo la dhex galiyay inta u dhaxaysa laba lakab oo elektrodes hufan oo khafiif ah. Filim khafiif ah oo khafiif ah ayaa la geliyaa inta u dhaxaysa electrodes-yadan wuxuuna u shaqeeyaa sidii beddelka. Marka danab lagu isticmaalo korantada elektiroonigga ah, walxaha crystal dareeraha ah ayaa lagu qasbay inuu beddelo xaaladdiisa polarization, taasoo keenaysa isbeddel ku yimaada sifooyinka indhaha. Gurigan waxa loo isticmaalaa in lagu shido pixels si loo soo saaro sawir.
- Matrix dadban: Shaxda dadban ee TFT LCD, muraayadda dareeraha ah ayaa lagu dhex daraa inta u dhaxaysa laba taarikada galaaska. Marka danab la isticmaalo inta u dhaxaysa labada electrodes ee galaaska, electrodes-ku waxay isu beddelaan dawlado qabasho iyo crystal dareere ah ayaa ka beddelaya xaalad kale. Sidan, pixels-yada waxaa gacanta ku haya guddiga laftiisa.
Faa'iidooyinka TFT LCDs
inta u dhaxaysa faa'iidooyinka Shaashada TFT waa:
- heerka soodhaha wanaagsanHeerka dib-u-cusboonaysiinta waxaa loola jeedaa xawaaraha ay shaashadda dhijitaalka ah ku soo bandhigi karto sawirro cusub. Tusaale ahaan, inta badan telefishinada CRT waxay soo bandhigaan muuqaalo heer cusub ah oo ah 60 Hz. Tani waxay ka dhigan tahay in sawirka shaashadda lagu soo bandhigay la cusboonaysiiyay 60 jeer ilbiriqsikii. Tignoolajiyada cusub, sida LCD-yada, heerka soo kicinta ayaa laga dhigay 244 Hz, taas oo macnaheedu yahay in sawirada shaashadda lagu soo bandhigay ay dib u soo celiyeen 244 jeer oo keliya ilbiriqsi kasta. Xaaladaha intooda badan, heerka soo kicinta ee ugu yaraan 60 Hz ayaa loo baahan yahay si loo bixiyo tayada sawirka la aqbali karo. Shaashad leh heer cusub oo ka hooseeya taas ayaa u muuqata mid jaah-wareersan oo blur ah.
- Xagasha daawashada ballaaranSi ka duwan telefishinada CRT ee soo bandhiga sawirada xagal daawashada cidhiidhi ah, LCD-yada casriga ahi waxay awood u leeyihiin inay soo bandhigaan muuqaalo leh xagal daawasho balaadhan. Tani waxay ka dhigan tahay inaad ka arki karto sawirada asxaabtaada iyo asxaabtaada xagal ballaaran iyada oo aan tayada sawirka la taaban.
- Cabbirka is haysta: Markaad fidsan tahay, cabbirku aad buu u cufan yahay waana dhuuban yahay marka loo eego shaashadda CRT. Sidoo kale, CRT-yadu inta badan kuma yimaadaan qiyaaso kala duwan, kuwa waaweyn iyo kuwa yaryarba waxa loogu talagalay LCD-yada.
Khasaaraha TFT LCD shaashadaha
Faa'iido darrada shaashadahan marka la barbar dhigo CRT-yadii hore waxaa ka mid ah:
- XeebahaFaa'iidada ugu weyn ee shaashadda LCD waa qiimaha wax soo saarka oo hooseeya. Marka la barbardhigo qiimaha wax soo saarka ee TFT, LCD-ga ayaa kharash yar, taas oo ka dhigaysa tignoolajiyada bandhig ee la heli karo ee dadweynaha. Si kastaba ha ahaatee, waxaa dhawaanahan jiray dhowr horumar oo laga sameeyay tignoolajiyada microlens-ka kuwaas oo suurtageliyay in la sameeyo bandhigyo tayo sare leh oo qiimo jaban leh.
- Isticmaal: Sababtoo ah waxay u baahan yihiin in dib loo iftiimiyo.
Bandhigyada TFT ee ugu Wanaagsan Arduino
Hadaad tagto iibso shaashadaha TFT Mashaariicda aad la leedahay Arduino, halkan waxaa ah tusaalooyin aan kugula talineyno:
Sida aad arki karto, ma aha kuwo aad qaali u ah waxayna kuu oggolaanayaan inaad mashaariic badan ku fuliso Arduino. Taas oo keliya ma aha, waxaad sidoo kale ku biiri kartaa mashaariicda kale ee kala duwan, oo ay ku jiraan SBC-yada sida Raspberry Pi. Wax-qabadku aad buu u sarreeyaa, xadku waa male-awaalkaaga.