I. Mfundo ya kapangidwe ka LCD
Madzi a kristalo
Chophimbacho chikuwoneka ngati chophimba chimodzi chokha, kwenikweni, chimapangidwa makamaka ndi zidutswa zinayi zazikulu (sefa, polarizer, galasi, nyali yozizira ya cathode fluorescent), apa kuti ndikupatseni kufotokozera mwachidule.
Zosefera: chifukwa chomwe gulu la TFT LCD lingapangitse kusintha kwamtundu makamaka kuchokera ku fyuluta yamitundu.Zomwe zimatchedwa gulu lamadzimadzi lamadzimadzi zimatha kupanga mamolekyu amadzimadzi amadzimadzi kuti aimirire pamzere kudzera pakusintha kwamagetsi pakuyendetsa IC, kuti awonetse chithunzicho.Chithunzicho chokha ndi chakuda ndi choyera, ndipo chitha kusinthidwa kukhala mtundu wamtundu kudzera mu fyuluta.
Polarizing mbale: polarizing mbale akhoza kusintha kuwala kwachilengedwe mu liniya polarizing zinthu, amene ntchito ndi kulekanitsa ukubwera liniya kuwala ndi zigawo polarizing, gawo limodzi ndi kupangitsa izo kudutsa, mbali ina ndi mayamwidwe, kusinkhasinkha, kubalalitsa ndi zotsatira zina kuti izo. zobisika, kuchepetsa mbadwo wa mfundo zowala / zoipa.
Cold cathode fluorescent nyali: imadziwika ndi voliyumu yaying'ono, yowala kwambiri komanso moyo wautali.Wopangidwa ndi magalasi opangidwa mwapadera ndi okonzedwa, nyali zozizira za cathode fluorescent zitha kugwiritsidwa ntchito mobwerezabwereza pambuyo powunikira mwachangu ndipo zimatha kupirira mpaka 30,000 kusintha ntchito.Chifukwa chozizira cathode fulorosenti fulorosenti. nyali AMAGWIRITSA NTCHITO ufa wamitundu itatu wa phosphor, kotero mphamvu yake yowala imawonjezeka, kuchepa kwa kuwala kumachepa, kutentha kwamtundu kumakhala bwino, motero kumapangitsa kuti kutentha kukhale kochepa kwambiri, kumateteza bwino moyo wathu wa kristalo wamadzimadzi.
Zomwe zimayambitsa ndi kupewa mawanga owala / oyipa amadzimadzi amadzimadzi
1. Zifukwa za wopanga:
Malo owala / oyipa amadziwikanso kuti malo owala a LCD, omwe ndi mtundu wa kuwonongeka kwa thupi kwa LCD.Zimayamba makamaka chifukwa cha kukanikiza kwakunja kwamphamvu kapena kupindika pang'ono kwa mbale yowonetsera mkati mwa malo owala.
Pixel iliyonse pazithunzi za LCD imakhala ndi mitundu itatu yoyambirira, yofiira, yobiriwira ndi yabuluu, yomwe imaphatikizana kuti ipange mitundu yosiyanasiyana.Tengani chitsanzo cha 15-inch LCD, malo ake a LCD screen ndi 304.1mm * 228.1mm, kusamvana ndi 1024 * 768, ndipo pixel iliyonse ya LCD imapangidwa ndi RGB primary color unit.Liquid crystal pixels ndi "liquid crystal boxes" opangidwa ndi kuthira crystal yamadzi mu nkhungu yokhazikika.Chiwerengero cha "mabokosi amadzimadzi amadzimadzi" oterowo pa chiwonetsero cha 15-inch LCD ndi 1024 * 768 * 3 = 2.35 miliyoni! = 0.099mm! Mwa kuyankhula kwina, 2.35 miliyoni "mabokosi amadzimadzi amadzimadzi" okhala ndi malo a 0.297mm * 0.099mm okha amakonzedwa mozama pansi pa 304.1mm * 228.1mm, ndi chubu choyendetsa galimoto chomwe chimayendetsa bokosi lamadzimadzi lamadzimadzi. Kuseri kwa bokosi lamadzimadzi la crystal box.Clearly, zopangira zopangira zopangira mzere ndizokwera kwambiri, paukadaulo wamakono ndi luso, sizingatsimikizirenso kuti gulu lililonse lopangidwa ndi LCD chophimba silowala / zoyipa, opanga nthawi zambiri amapewa mfundo zowala / zoyipa. gawo la LCD, palibe zowala / zoyipa kapena mawanga owoneka bwino / gulu loyipa la LCD la opanga zida zamphamvu, komanso zowunikira / zoyipa zambiri za LCD skrini nthawi zambiri zimakhala zochepa opanga ang'onoang'ono popanga LCD yotsika mtengo.
Mwaukadaulo, malo owala / oyipa ndi pixel yosasinthika pagulu la LCD lomwe limapangidwa panthawi yopanga. Gulu la LCD limapangidwa ndi ma pixel amadzimadzi amadzimadzi, iliyonse ili ndi ma transistors atatu ofanana ndi zosefera zofiira, zobiriwira ndi zabuluu kumbuyo kwa 0.099mm madzi akristalo pixel
Mpweya wodutsa wolakwika kapena dera lalifupi limapangitsa pixelyi kukhala malo owala / oyipa. Kuphatikiza apo, pixel iliyonse ya LCD imaphatikizidwanso kuseri kwa chubu yoyendetsa yosiyana kuti iyendetse. sichingasinthe mtundu ndipo imakhala malo okhazikika, omwe aziwoneka bwino mumitundu ina yakumbuyo.Iyi ndi mfundo yowala / yoipa ya LCD. Bright / bad spot ndi mtundu wa kuwonongeka kwa thupi komwe sikungapewedwe 100% pakupanga ndi kugwiritsa ntchito LCD screen.Nthawi zambiri, amapangidwa popanga zenera. Malingana ngati mtundu umodzi kapena ingapo yoyambirira yomwe imapanga pixel imodzi yawonongeka, mawanga owala / oyipa amapangidwa, ndipo kupanga ndi kugwiritsa ntchito kumatha kuwononga.
Malinga ndi msonkhano wapadziko lonse, chiwonetsero cha kristalo chamadzimadzi chimakhala ndi 3 pansi pa malo owala / oyipa omwe ali munjira yomwe amaloledwa, komabe wogula sangakhale wokonzeka kugula chowunikira chomwe chili ndi malo owala / oyipa pogula kristalo wamadzi, kotero wopanga kristalo wamadzimadzi. omwe ali ndi mfundo yowala / yoyipa nthawi zambiri amagulitsidwa molimba kwambiri.Kodi opanga mapanelo amatani ndi mawanga atatu kapena kuposerapo / oyipa chifukwa cha kupanga? adzagwiritsa ntchito zida zaukadaulo pochiza madontho oyipa / oyipa, kuti akwaniritse zotsatira za madontho oyipa / oyipa padziko lapansi ndi maso.Opanga ochepa samachita ngakhale kukonza, amayika mwachindunji mapanelo awa mumzere wopanga. kupanga, kuti akwaniritse cholinga chochepetsera mtengo. Mtundu uwu wa mankhwala uli ndi phindu pamtengo, koma udzatulutsa mawanga owala / oyipa posakhalitsa pambuyo pa kugwiritsidwa ntchito.Pakali pano pa msika zambiri zotsika mtengo zamadzimadzi zowonetsera kristalo zimakhala choncho.zakonzedwa, kotero simukufuna kugula zowonetsera zamadzimadzi zotsika mtengo, kuti mugule mitundu yosadziwika bwino.Ndikosangalala kugula zowonetsera zotsika mtengo - zotsika mtengo. Chifukwa pakapita nthawi, zinthu zomwe simukufuna kuziwona zitha kuchitika.
2. Zifukwa zogwiritsira ntchito
Mfundo zina zowala / zoyipa za LCD zitha kuyambitsidwa ndikugwiritsa ntchito njirayi, ingokuuzani za momwe mungagwiritsire ntchito njira zodzitetezera:
(1) osayika machitidwe angapo nthawi imodzi; Kuyika kwa machitidwe angapo pakusinthana kungayambitse kuwonongeka kwa LCD.
(2) sungani voteji ndi mphamvu zachilendo;
(3) osakhudza batani la LCD nthawi iliyonse.
Zinthu zitatu zonsezi mwachindunji kapena mwachindunji zimakhudza ntchito yachibadwa ya mamolekyu a "liquid crystal box", zomwe zingayambitse kupanga mfundo zowala / zoipa. kupyolera mu kuyendera mainjiniya.Ngakhale malo owala / oyipa a ogula amatha kumveka ngati opanga savulaza ogula popanda chikumbumtima.
Muyezo wadziko lonse ndi 335, kutanthauza kuti mawanga atatu owala, kapena madontho atatu amdima, amayenerera kukhala abwinobwino.
Nthawi yotumiza: Jun-29-2019