Izikrini ze-TFT LCD zezinye zeetekhnoloji zokubonisa ezisetyenziswa ngokubanzi kwizixhobo zombane ngoku.Ifezekisa umboniso womgangatho ophezulu womfanekiso ngokongeza i-transistor yefilimu encinci (TFT) kwi-pixel nganye.Kwimarike, zininzi iintlobo zezikrini ze-TFT LCD, nganye ineempawu zayo ezizodwa kunye neenzuzo.Eli nqaku liza kwazisa uhlobo lwe-VA, uhlobo lwe-MVA, uhlobo lwe-PVA, uhlobo lwe-IPS kunye nohlobo lwe-TN isikrini se-LCD, kwaye ichaze iiparamitha zabo ngokulandelelana.
Uhlobo lwe-VA (uLungelelwaniso oluNqobileyo) bubuchwephesha besikrini se-TFT LCD eqhelekileyo.Olu hlobo lwekhusi luthatha ulwelo lwekristale yesakhiwo semolekyuli ecwangciswe ngokuthe nkqo, kwaye inqanaba lokuhanjiswa kokukhanya lilawulwa ngokuhlengahlengisa ukuqhelaniswa kweeathom zekristale zolwelo.Izikrini ze-VA zinokumahluko aphezulu kunye nokugcwala kombala, ezikwaziyo ukubamnyama nzulu kunye nemibala yokwenyani.Ukongeza, isikrini se-VA sinoluhlu olukhulu lokujonga i-angle, enokuthi igcine ukuhambelana komgangatho wemifanekiso xa ijongwa kwii-engile ezahlukeneyo.Imibala ye-16.7M (iphaneli ye-8bit) kunye ne-angle yokujonga enkulu kakhulu zezona mpawu zicacileyo zobugcisa.Ngoku iipaneli zohlobo lwe-VA zihlulwe zibe ziindidi ezimbini: i-MVA kunye ne-PVA.
Uhlobo lwe-MVA (i-Multi-domain Vertical Alignment) yinguqulelo ephuculweyo yohlobo lwe-VA.Esi sakhiwo sesikrini sifezekisa umgangatho womfanekiso ongcono kunye nexesha lokuphendula ngokukhawuleza ngokongeza i-electrodes eyongezelelweyo kwiiphikseli.Isebenzisa iiprotrusions ukwenza ikristale yolwelo ingabi yeyona nto yemveli ithe tye xa imile, kodwa imile kwi-engile ethile;xa i-voltage isetyenziswa kuyo, iimolekyuli zekristale zolwelo zinokutshintshwa ngokukhawuleza zibe yindawo ethe tyaba ukuvumela ukukhanya okusemva kudlule ngokulula.Isantya esikhawulezayo sinokunciphisa kakhulu ixesha lokubonisa, kwaye ngenxa yokuba le protrusion iguqula ukulungelelaniswa kwama-molecule e-crystal ye-liquid, ukuze i-angle yokujonga ibe banzi.Ukunyuka kwe-angle yokujonga kunokufikelela ngaphezu kwe-160 °, kwaye ixesha lokuphendula lingacuthwa kwakhona libe ngaphantsi kwe-20ms.Isikrini se-MVA sinochaso oluphezulu, uluhlu olubanzi lokujonga i-angle kunye nesantya sokutshintsha kwepixel ngokukhawuleza.Ukongeza, isikrini se-MVA sinokunciphisa ukutshintsha kombala kunye ne-blur motion, ukubonelela ngomfanekiso ocacileyo kunye ocacileyo ngakumbi.
Uhlobo lwe-PVA (Ulungelelwaniso oluNcinci oluPhambili) lolunye uhlobo oluphuculweyo lohlobo lwe-VA.Olu luhlobo lwephaneli eyasungulwa yi-Samsung, iteknoloji yohlengahlengiso lomfanekiso othe nkqo.Le teknoloji inokutshintsha ngokuthe ngqo imo yesakhiwo seyunithi yekristale yolwelo, ukwenzela ukuba umphumo wokubonisa unokuphuculwa kakhulu, kunye nokukhanya okuphumayo kunye nomlinganiselo wokuchasana kunokuba ngcono kune-MVA..Ukongezelela, ngesiseko sezi ntlobo zimbini, iintlobo eziphuculweyo zandisiwe: i-S-PVA kunye ne-P-MVA zimbini iintlobo zeepaneli, ezihamba phambili ekuphuhliseni iteknoloji.I-angle yokujonga inokufikelela kwii-degrees ze-170, kwaye ixesha lokuphendula likwalawulwa ngaphakathi kwe-20 millisecond (i-acceleration overdrive inokufikelela kwi-8ms GTG), kwaye umlinganiselo wokungafani unokudlula ngokulula i-700: 1.Bubuchwephesha obuphezulu obunciphisa ukuvuza kokukhanya kunye nokusabalalisa ngokongeza iipateni ezintle eziguquguqukayo kumaleko ekristale yolwelo.Le teknoloji yesikrini inokubonelela ngomlinganiselo ophezulu wokuchasana, uluhlu olubanzi lokujonga i-angle kunye nokusebenza okungcono kombala.Izikrini ze-PVA zifanelekile kwimiboniso efuna umahluko ophezulu kunye nemibala ecacileyo, efana nokulungiswa kwemifanekiso kunye nethiyetha.
Uhlobo lwe-IPS (In-Plane Switching) yenye iteknoloji eqhelekileyo yesikrini se-TFT LCD.Ngokungafaniyo nohlobo lwe-VA, iimolekyuli zekristale zolwelo kwiscreen se-IPS zilungelelaniswe kwicala elithe tye, nto leyo eyenza kube lula ukuba ukukhanya kudlule kumaleko wekristale yolwelo.Le teknoloji yesikrini inokubonelela ngoluhlu olubanzi lwee-angles zokubukela, ukuveliswa kombala ngokuchanekileyo kunye nokukhanya okuphezulu.Izikrini ze-IPS zifanelekile kwizicelo ezifuna ii-engile zokujonga ngokubanzi kunye nokunikezelwa kombala wokwenyani, njengezixhobo ezifana neetafile kunye neefowuni eziphathwayo.
Uhlobo lwe-TN (i-Twisted Nematic) yeyona nto ixhaphakileyo kunye neyoqoqosho ye-TFT LCD iteknoloji yesikrini.Olu hlobo lwesikrini lunesakhiwo esilula kunye nexabiso eliphantsi lokuvelisa, ngoko lisetyenziswa ngokubanzi kwinani elikhulu lezicelo.Nangona kunjalo, izikrini ze-TN zinoluhlu olumxinwa lwee-engile zokujonga kunye nokusebenza kakubi kombala.Ifanelekile kwezinye izicelo ezingadingi umgangatho ophezulu womfanekiso, njengeemonitha zekhompyutheni kunye nemidlalo yevidiyo.
Ukongeza kokungeniswa kwezi ntlobo zesikrini ze-TFT LCD ezingentla, iiparamitha zazo ziya kuchazwa ngezantsi.
Eyokuqala ngumahluko (Contrast Ratio).Umlinganiselo wothelekiso ngumlinganiselo wokukwazi kwesixhobo sokubonisa ukwahlula phakathi komnyama nomhlophe.Umahluko ophezulu uthetha ukuba isikrini sinokubonisa ngokucacileyo umahluko phakathi komnyama nomhlophe.I-VA, i-MVA, kunye neentlobo ze-PVA zezikrini ze-LCD zikholisa ukuba nomlinganiselo ophezulu wokuchasana, obonelela ngeenkcukacha zomfanekiso omkhulu kunye nemibala efana nobomi.
Ilandelwa yi-engile yokujonga (i-engile yokujonga).I-engile yokujonga ibhekisa kuluhlu lwee-engile apho umgangatho womfanekiso ohambelanayo unokugcinwa xa ujonga isikrini.IPS, VA, MVA, kunye neentlobo ze-PVA zezikrini ze-LCD zihlala zineengile ezininzi zokubukela, ezivumela abasebenzisi ukuba banandiphe imifanekiso ekumgangatho ophezulu xa ijongwa kwii-angles ezahlukeneyo.
Enye iparameter lixesha lokuphendula (Ixesha lokuPhendula).Ixesha lokuphendula libhekisa kwixesha elifunekayo ukuze iimolekyuli zekristale zolwelo zitshintshe ukusuka kwelinye ilizwe ukuya kwelinye.Amaxesha okuphendula ngokukhawuleza athetha ukuba isikrini sinokubonisa ngokuchanekileyo imifanekiso ehamba ngokukhawuleza, ukunciphisa ukufiphala kwentshukumo.Izikrini ze-LCD zohlobo lwe-MVA kunye ne-PVA zihlala zinexesha elikhawulezayo lokuphendula kwaye zifanelekile kwimiboniso efuna ukusebenza komfanekiso oguqukayo ophezulu.
Eyokugqibela kukusebenza kombala (Color Gamut).Ukusebenza kombala kubhekiselele kuluhlu lwemibala olunokwenziwa sisixhobo sokubonisa.Iintlobo ze-IPS kunye ne-PVA zezikrini ze-LCD ngokubanzi zinoluhlu olubanzi lwemibala yokusebenza kwaye zinokubonisa imibala eyinyani kunye ecacileyo.
Ukushwankathela, kukho iintlobo ezininzi zezikrini ze-TFT LCD kwimarike, kwaye uhlobo ngalunye luneempawu zalo ezizodwa kunye neenzuzo.Uhlobo lwe-VA, uhlobo lwe-MVA, uhlobo lwe-PVA, uhlobo lwe-IPS, kunye nohlobo lwe-TN izikrini ze-LCD ziyahluka ngokwahlukileyo, i-angle yokujonga, ixesha lokuphendula, kunye nokusebenza kombala.Xa ukhetha isikrini se-LCD, abasebenzisi kufuneka bakhethe olona hlobo lufanelekileyo ngokweemfuno zabo kunye nohlahlo lwabiwo-mali.Nokuba yeyomsebenzi wobuchwephesha okanye ukusetyenziswa kwemihla ngemihla, itekhnoloji yesikrini se-TFT LCD inokubonelela ngomgangatho obalaseleyo womfanekiso kunye namava okubukela.
Ixesha lokuposa: Aug-24-2023