Kuyambitsa Gulu ndi Mfundo Yogwira Ntchito ya TFT Colour Screen Panels

M'nthawi yamakono ya digito, kufunikira kwa zowonetsera zowoneka bwino komanso zowoneka bwino kwawonjezeka kwambiri.Imodzi mwa mitundu yodziwika bwino ya mapanelo owonetsera omwe amagwiritsidwa ntchito pazida zosiyanasiyana zamagetsi ndi mawonekedwe amtundu wa Thin-Film Transistor (TFT).Mapanelowa amapereka zowoneka bwino zokhala ndi mawonekedwe olondola amitundu, kuwapangitsa kukhala okonda mafoni, mapiritsi, makanema akanema, ndi mapulogalamu ena ambiri.M'nkhaniyi, tikambirana za kagawidwe ndi mfundo zogwirira ntchito za mapanelo amtundu wa TFT kuti timvetsetse momwe amagwirira ntchito.

Makanema amtundu wa TFT amatha kugawidwa m'mitundu iwiri ikuluikulu kutengera ukadaulo wogwiritsidwa ntchito: In-Plane Switching (IPS) ndi Twisted Nematic (TN) mapanelo.Mitundu yonseyi ili ndi mawonekedwe apadera ndipo imagwira ntchito zosiyanasiyana, zomwe zimathandizira kusiyanasiyana kwamakampani owonetsera.

Kuyambira ndi mapanelo a IPS, amadziwika chifukwa cha kutulutsa kwawo kwamtundu wapamwamba komanso kowoneka bwino.Ukadaulowu umagwiritsa ntchito makonzedwe a kristalo wamadzimadzi omwe amalola kuwala kudutsa popanda kusokoneza, zomwe zimapangitsa kuti pakhale mitundu yolondola komanso yowoneka bwino.Ma mapanelo a IPS amapereka kulondola kwamitundu kosasinthasintha mosasamala kanthu za momwe amawonera, kuwapanga kukhala chisankho choyenera kwa akatswiri ojambula, opanga zojambulajambula, ndi anthu omwe akufuna zowonera zapamwamba kwambiri.

Kumbali ina, mapanelo a TN ndi otchuka chifukwa chanthawi yawo yoyankha mwachangu komanso mitengo yotsika mtengo.Tekinoloje iyi imagwiritsa ntchito makhiristo amadzimadzi omwe amapindika ngati palibe magetsi omwe amagwiritsidwa ntchito, kutsekereza kuwala.Mphamvu yamagetsi ikagwiritsidwa ntchito, makhiristo amadzimadzi amasunthika, ndikupangitsa kuwala kudutsa ndikutulutsa mtundu womwe ukufunidwa.Ma mapanelo a TN amagwiritsidwa ntchito kwambiri pazida zolowera chifukwa ndizotsika mtengo ndipo amapereka kutulutsa kovomerezeka kwamitundu pazogwiritsa ntchito tsiku ndi tsiku.

Tsopano, tiyeni tilowe mu mfundo yogwirira ntchito ya mapanelo amtundu wa TFT, kuyang'ana kwambiri paukadaulo wa IPS popeza yatchuka kwambiri m'zaka zaposachedwa.Mkati mwa gulu la IPS, pali magawo angapo omwe amawonetsa zowoneka bwino komanso zowoneka bwino.

Wosanjikiza wowunikira kumbuyo, woyikidwa kumbuyo kwa gululo, umatulutsa kuwala koyera komwe kumadutsa polarizer.Polarizer imalola kuwala kozungulira komwe kumadutsa, zomwe zimapangitsa kuwala kozungulira.Kuwala kokhala ndi polarized kumeneku kumafika pagawo loyamba lagalasi, lomwe limadziwikanso kuti mtundu wa fyuluta, womwe uli ndi zosefera zazing'ono zofiira, zobiriwira, ndi zabuluu (RGB).Pixel iliyonse imafanana ndi imodzi mwamitundu yayikuluyi ndipo imalola kuti mtundu wake wokha udutse.

Kutsatira gawo la fyuluta yamtundu ndi gawo lamadzimadzi la kristalo, lomwe limayikidwa pakati pa magawo awiri agalasi.Makristasi amadzimadzi mu mapanelo a IPS amalumikizidwa mopingasa momwe amakhalira.Gawo lachiwiri lagalasi, lomwe limadziwika kuti TFT backplane, lili ndi ma transistors amafilimu ochepa omwe amakhala ngati masiwichi a pixel imodzi.Pixel iliyonse imakhala ndi ma pixel ang'onoang'ono omwe amatha kuyatsa kapena kuzimitsa kutengera mtundu womwe mukufuna.

Kuti muwongolere kusanja kwa makhiristo amadzimadzi, gawo lamagetsi limagwiritsidwa ntchito ku ma transistors amafilimu opyapyala.Mphamvu yamagetsi ikagwiritsidwa ntchito, ma transistors amafilimu opyapyala amakhala ngati masiwichi omwe amalola kuti madzi azitha kuyendamo, kulumikiza makhiristo amadzimadzi molunjika.M'chigawo chino, kuwala kwa polarized kudzera muzosefera zamitundu kumapindika madigiri 90, kulola kudutsa gawo lachiwiri lagalasi.Kuwala kopotoka kumeneku kumafika pa polarizer yapamwamba, yolumikizidwa molunjika mpaka pansi, zomwe zimapangitsa kuti kuwala kwa polarized kubwerere kumalo ake oyambirira.Kusintha kumeneku kumapangitsa kuti kuwala kupite, kupanga mtundu womwe ukufunidwa.

Ubwino umodzi wofunikira wa mapanelo a IPS ndi kuthekera kwawo kopereka mitundu yofananira komanso ma angles owonera.Chifukwa cha kusanja kwa makhiristo amadzimadzi, mapanelo a IPS amalola kuwala kufalikira mofanana, zomwe zimapangitsa kuti pakhale mitundu yofananira pachiwonetsero chonse.Kuphatikiza apo, ma angles owoneka bwino amatsimikizira kuti zowonekazo zimakhala zowona kumitundu yawo yoyambirira, ngakhale zitawonedwa mosiyanasiyana.

Pomaliza, mapanelo amtundu wa TFT, makamaka matekinoloje a IPS ndi TN, asintha makina owonetsera ndi zowoneka bwino komanso magwiridwe antchito osiyanasiyana.IPS mapanelo amapambana kulondola kwamitundu komanso ma angles owoneka bwino, kuwapangitsa kukhala abwino kwa akatswiri.Makanema a TN, kumbali ina, amapereka nthawi zoyankha mwachangu komanso zotsika mtengo, zomwe zimakwaniritsa zosowa za ogwiritsa ntchito tsiku ndi tsiku.Pomvetsetsa zagawidwe ndi mfundo zogwirira ntchito za mapanelo amtundu wa TFT, titha kuzindikira zovuta za zida zomwe zakhala gawo lofunikira m'miyoyo yathu munthawi ino ya digito.