Kungani qapha flickers

Uma ekuqaleni Computing desktop ekhaya ngokungaqondile Indlela ukuphepha ezehlukile amakhono zezibalo womnikazi wayo, e Emashumini amabili eminyaka adlule, isimo yasishintsha. Ezamakhompiyutha kanye laptops babé ukulingisa njengoba ajwayelekile zokuphila kwanamuhla, like umshini okuzenzakalelayo wokuwasha noma iselula. Akumangalisi ukuthi phezu izinkundla kaningi umbuzo uyabuzwa e Global Network kungani qapha flickers. Ukuze uthole inombolo encane abasebenzisi, abanye bamshaya indiva kukho, kuyilapho abanye awuboni. Futhi ngemva kwengxenye yabantu emhlabeni Ujoyine umphakathi virtual waqala ukwakha imicu igama elikhulu "siyafiliza qapha!". Uma uthi nhlá kungase kubonakale sengathi inkinga ye kulokolokoza into yesikhathi esidlule, wanyamalala kanye nabaqaphi besiyoba sikhulu esekelwe cathode ray amashubhu (CRT), kodwa kungcono elula?

Uma umengameli siyafiliza, kudala umthwalo okwengeziwe izinhlaka ngokubona, kodwa uma ucabanga isikhathi computer, lolu daba kubaluleke kakhulu. Ukuze uqonde ke, kwagcina ithe "i", mhlawumbe, ukuze uqale nge umlando kancane.

Kwaphela isikhathi eside, zonke ngabaqaphi ikhompyutha usethe ngesisekelo a CRT. Lobu buchwepheshe nje yayingatholakali lapho kuphela. Nakuba imisebenzi kumadivayisi ezifana ukubonisa umsebenzi oncomekayo Abasebenzisi abaningi baye ngokuvamile wawuthi qapha ukukhanya okulokozayo. Kwakumelwe ngokuphelele kwesokudla. Isimiso yokusebenza ye CRT wukuthi ukusakaza eziningi ze-electron elawulwa kazibuthe iwele ebusweni engaphakathi CRT camera yenziwe ngohlobo olukhethekile. Esikhundleni ekungeneni ageleza Ukwakheka (phosphor) iphendula. Rays basondela efana umugqa-by-line, ezinyakazayo kusuka phezulu kuya phansi. Khona-ke konke iyaphindwa.

Igama elithi "isibonisi imvamisa" kubonisa ukuthi izikhathi eziningi ngayinye imisebe yesibili ukwakha isithombe esikrinini. Ngenxa aphikelele umuzwa wenkohliso isithombe ephelele. Abantu abaningi ukubona kulokolokoza at a imvamisa esingaphansi 75 Hz, nakuba konke kuncike izici bokuphila. Ukuze uthole ukwaziswa okwengeziwe mayelana CRT ingasebenza kumasayithi ezikhethekile nasezincwadini. Ngakho, ukuze kuqedwe kulokolokoza CRT qapha bungatholakala ngokukhetha umshayeli ihluzo, imvamisa ephakeme.

Kodwa manje nesithakazelo ngokwengeziwe umbuzo wokuthi kungani qapha ukukhanya okulokozayo LCD. Ngo izinkundla eziningi ngalolu daba okhela mpikiswano sina. Kodwa ngesikhathi LCD (okucaciswe luketshezi) ubuchwepheshe baphikisa ngokuthi inkinga isixazululekile ngokuphelele kulokolokoza, njengoba isimiso yesithombe abaphila ngayo ihluke ngokuphelele. Kwavela ukuthi kulokhu abakhiqizi kancane njengoba singahambi ngobuqili, ukunikela nengxenye-iqiniso. Futhi nakhu into. I-matrix ngokwayo, lapho maseli okuvalelwe zinhlayiya ketshezi musa ukulotha, sonke isikhathi yokudala esimile.

Nge Iwashi electronic ukwazi zonke (ukukhumbula brand odumile "Montana"). Umthwalo iso uma ukubheka izinombolo kuyafana ekuhloleni umbhalo ephepheni (Yiqiniso, uma ungenawo ungangemuki ku-akhawunti umehluko usayizi). Kulungile. Kodwa inkinga ukuthi isithombe ezakhiwe crystal liquid kuyabonakala kuphela khona umthombo wokukhanya ngokufanele ohlangothini emuva. Umlindo siwukuzindla yesibani esizungezile kusukela substrate, kodwa ngabaqaphi ihlanganiswe kwasemuva. Manje ukukhuthalele esikhundleni umugqa LED. Iningi adjustable ukugqama LCD qapha onobuhle le mithombo ibangelwa modulating le pulses amandla, okuholela kulokolokoza. Yiqiniso, izinga akuyona ngaphansana 140 Hz (ngokuvamisile phezu 200), kodwa sona sikhona futhi wazizwa emizimbeni kokubili ukungakhululeki. Isixazululo: ukhethe imodeli ngaphandle PWM noma ekubonisweni kokugqama 100%.