Kuyini izinga refresh

Ezikhathini ebuyako amathelevishini wadala ngesisekelo a CRT (cathode ray tube), umuntu ngamunye kwakudingeka okungenani ube nomqondo othile ngalokho izinga refresh. Ngaphandle-ke, kubalulekile ukuthi ukuba alondoloze

umbono, ukuhlolwa, ikhanda kanye ohambisana ukungakhululeki ngenkathi esebenza computer noma ubuka izinhlelo ze-TV. Singasho ukuthi isikrini Ukuvuselela ingamaphesenti ngokungaqondile ezihlobene nezempilo. Namuhla, isimo kakhulu obrazomizmenilas. It yadalwa sokuqhafaza Imininingwane ukubonisa idivayisi usebenzisa izimiso ohluke ngokuphelele ukusebenza kuka CRT ubuchwepheshe. Nakuba esibukweni LCD kanye nabaqaphi TV akunjalo ephelele, ukukhuluma mayelana nokuphepha ephelele: umthelela umbono is kakhulu ziyancipha, kodwa alikakangilahlekeli.

Phendula umbuzo yini esibukweni Ukuvuselela izinga, kuba elula abanikazi ikhompyutha nabaqaphi. Uma usebenzisa uhlelo lwe-Windows ezisebenza inguqulo yakamuva, kubalulekile kunoma iyiphi isikhala khulula kudeskithophu ubonisa imenyu ngokuchofoza inkinobho yegundane kwesokudla, futhi ohlwini evelayo, khetha "Screen Ukulungiswa." Ngokulandelayo, uqhubekele "Izilungiselelo ezithuthukisiwe". Lapha, ithebhu ukuvulwa "Gada", ungabona umugqa "abashayeli bezindiza ngesikhathi vuselela kwesikrini."

Ngo ngabaqaphi yesimanje esekelwe zinhlayiya ketshezi, ngokuvamile itholakala 59 no-60 Hz - kungenxa ephansi ekupheleni models; e ezibizayo kungase hlela njengeringithoni 75 no-100 Hz. Vuselela LCD izinga isikrini - ifa ngenkathi CRT. I okucaciswe luketshezi onobuhle "by iso" ukuhlukanisa kungenzeki 60 no-100 Hz. Into kuphela ukuthi manje sithinta lokhu kulungiselelwa - ukunyakaza abushelelezi isikhombisi segundane futhi ikhono lokusebenzisa 3D-izibuko (100 Hz kuyadingeka kubo).

Kodwa ezinsukwini we CRT kwakuhlukile. Ebusweni engaphakathi kwesikrini (tube) laligcwele ungqimba material ekhethekile (phosphor) kukhanya uyakwazi millisecond ambalwa ngemva kokufaka ke ama-electron. electrode ezintathu (isibhamu) by ekushayweni izinhlayiya Babechichima ageleza kabani ezinyakazayo ukulungiswa kazibuthe. It kuqeda imisebe esuka umugqa ngqo wokuqala waqala ukuba kuvuthe ekhoneni elingenhla esinxeleni esikrinini, bese flow luminescence eyenga phezu umugqa ovundlile ukuze

ekhoneni elingenhla. uvumelanise Landelayo sigudluke phansi umugqa owodwa futhi zonke okuphindaphindiwe. Lapho ufika ekhoneni langakwesokudla, weza emuva ekuqaleni futhi konke iyaphindwa. Isibalo zesikrini enjalo edonswe kulowo okwesibili nokunye okunjalo kuyinto izinga refresh.

Isilawuli LCD bangazalanisa ukushintsha ukudluliselwa ukukhanya ngokusebenzisa okucaciswe luketshezi izakhi we matrix - kungaba kanyekanye okhela ucime esibukweni. Siyafiliza kwasemuva ngokwayo - lena ingqinamba yokugcina ngenkuthalo iqedwe imifanekiso entsha nabaqaphi. Isikrini phosphor namanje zikhanyiswe, ukudala inkohliso isithombe ephelele. Amehlo nje awunaso isikhathi ukuqaphela kulokolokoza okubangelwa Ukuvuselela njalo izithombe. Nokho, kwaba khona futhi buyekeza amaza ngezansi 75 Hz elalihluke umbono neuropathy. Ukuqeda lo mphumela abakhiqizi aphakanyisiwe ngabaqaphi ngisho nge amaza ngenhla 120 Hz. Yiqiniso, leli qhinga lula ngokuqondisisa - thina ungacabangi ukwakheka umbala isithombe.