Abaqaphi abadala basebenzisa i-tube cathode ray ukubonisa izithombe
Isifinyezo njenge-CRT, i-cathode ray tube iyishubhu enkulu yokuvutha esetshenziselwa ukubonisa isithombe esikrinini. Ngokuvamile, libhekisela kuhlobo lomqapha wekhompiyutha usebenzisa i-CRT.
Nakuba ukubonisa kwe-CRT (okuvame ukubizwa ngokuthi "i-tube" ababheki) kuyi-bulky ngempela futhi kuthatha indawo enkulu yedeski, ngokuvamile banokwesayizi weskrini oluncane kunezobuchwepheshe ezintsha bokubonisa.
Idivaysi yokuqala ye-CRT ibizwa ngokuthi i- Braun tube futhi yakhiwa ngo-1897. Ithelevishini yokuqala ye-CRT eyenziwe yimuphi umphakathi yayineminyaka engu-1950. Ngeminyaka eminingi kusukela ngaleso sikhathi, amadivaysi amasha abone ukuthuthukiswa hhayi ubukhulu bendawo kuphela nesayizi yesikrini, kodwa futhi ukusetshenziswa kwamandla, izindleko zokukhiqiza, isisindo, nesithombe / umbala.
I-CRTs ekugcineni ithathelwe ubuchwepheshe obusha obanikeza lezi zithuthukako ezinkulu, njenge- LCD , i- OLED , ne- Super AMOLED .
Qaphela: I- SecureCRT, iklayenti le-Telnet, elalibizwa ngokuthi i-CRT kodwa ayihlangene nama-monitor we-CRT.
Indlela abahloli be-CRT basebenza ngayo
Kukhona izibhamu ezintathu ze-electron ngaphakathi kweso lesimanje se-CRT esetshenziselwa umbala obomvu, obuluhlaza, nobuluhlaza. Ukuze bakhiqize isithombe, badonsa ama-electron e-phosphor ngasekupheleni kokuqapha. Iqala engxenyeni engaphezulu kwesokunxele kwesikrini bese ihamba ukusuka kwesobunxele kuya kwesokudla, enye umugqa ngesikhathi, ukugcwalisa isikrini.
Uma i-phosphor ishaywa nalezi zedijithali, ibenza bakwazi ukuvutha kuma frequencies athile, ngamaphikseli athile, isikhathi esithile. Lokhu kudala isithombe esidingekayo besebenzisa ingxube yemibala ebomvu, eluhlaza okwesibhakabhaka, nohlaza.
Uma omunye ukhiqizwa esikrinini, izibhamu ze-electron ziqhubeka nokulandelayo, futhi uqhubeke wenza lokhu kuze kube yilapho sonke isikrini sigcwele isithombe esifanele. Umqondo wukuthi inqubo yokusheshisa ngokwanele ukuthi ubona isithombe esisodwa, kungakhathaliseki ukuthi isithombe noma ifreyimu eyodwa kuvidiyo
Ulwazi oluthe xaxa ku-CRT Ekhombisa
Isilinganiso sokuvuselela isikrini se-CRT sinquma ukuthi umlenze uzovuselela kanjani isikrini njalo ukukhiqiza isithombe. Ngenxa yokuthi umphumela ovuthayo we-phosphor awugcini ngaphandle kokuthi isikrini sivuseleleke, izinga eliphansi lokuvuselela ukuthi kungani ezinye izihloli ze-CRT zithola ukuqhuma noma ukuphuma kwendawo, imigqa ehambayo.
Okuhlangenwe nakho kulezo zimo i-monitor ivuselela kancane kangangokuba ungabona ukuthi yiziphi izingxenye zesikrini ezingakabonisi isithombe.
Abahloli be-CRT basengozini yokuphazanyiswa kwamagesi kusukela umshini yilokho okuvumela ama-electron ukuba ahambe ngaphakathi kweso. Lolu hlobo lokuphazamiseka alukho ngezikrini ezintsha njenge-LCDs.
Ithiphu: Bona ukuthi ungayifaka kanjani i-Computer Monitor uma uhlangabezana nokuphazanyiswa kwamagnetic kuze kube yilapho isikrini sichazwa .
Ngaphakathi kwe-CRT enkulu neyindlala ayikho kuphela i-electron emitters kodwa futhi igxilise futhi igxile ngamakhoyili. Yonke into eyenza i-CRT izibukeli zinkulu kakhulu, yingakho izikrini ezintsha ezisebenzisa ubuchwepheshe obuhlukile njenge-OLED, zingaba mncane kakhulu.
Iphaneli yamapulangwe efana nama-LCD angenziwa ukuba abe mkhulu ngempela (ngaphezu kuka-60 ") ngenkathi ama-CRT ukubonisa ngokuvamile ahamba cishe angu-40" ngaphezulu.
Ezinye izinhlelo zokusebenza ze-CRT
I-CRT nayo isetshenziselwe amadivaysi angabonisi, afana nokugcina idatha. I-tube yakwaWilliam, njengoba yayibizwa, yayiyi-CRT engakwazi ukugcina idatha kanambambili.
Isandiso sefayela se- .CRT ngokucacile asihambisani nobuchwepheshe bokubonisa, futhi isetshenziselwa ukufometha kwefayili yeSitifiketi Sokuphepha. Amawebhusayithi ayawasebenzisa ukuqinisekisa ukuthi ungubani.
Ngokufanayo iyilabhulali ye-C yesikhathi sokugijima (CRT) ehlobene nolimi lwezinhlelo ze-C.