Paub Txog Dab Tsi Saib Thaum Yuav Muas CRT Saib Xyuas Koj Lub PC
Vim lawv qhov teeb meem loj thiab ib puag ncig, cov CRT raws li cov lus tsis raug tsim tawm rau tus neeg siv khoom siv ntxiv lawm. Yog tias koj tab tom nrhiav kom tau ib qho kev tso rau hauv koj lub computer, kos tawm ntawm kuv tus saib xyuas LCD Cov Kev Ntsuas Phau Ntawv Qhia uas yog hais txog ntau yam nta thiab yees tom qab muaj kev qhia txog lub computer niaj hnub.
Cathode duab tshav Tube lossis CRT tus saib yog cov ntaub ntawv tso cai rau cov PC tshuab computer. Muaj ntau lub khoos phis tawj tshaj plaws tau muab lawv cov lus tso tawm rau ib qho kev teeb tsa video teeb liab los tso tawm rau hauv TV. Raws li lub sij hawm nce, yog li ua cov theem ntawm cov tshuab siv los siv computer qhia.
Saib Qhov Cuam thiab Saib Tshaj Tawm
Txhua CRT tus saib xyuas yog muag raws li lawv qhov kev tshuaj ntsuam. Qhov no feem ntau tau teev raws li kev ntsuas ntawm kab pheeb ces kaum ntawm sab qis ces mus rau sab nrais kaum ntawm qhov screen hauv nti. Txawm li cas los xij, tus saib loj me me tsis txhais rau hauv cov ntawv pom tseeb. Cov raj tsom saib yog feem ntau them rau ntawm sab nraud ntawm qhov screen. Tsis tas li ntawd, lub raj feem ntau tsis tuaj yeem tsim ib qho duab rau cov npoo ntawm lub raj puv loj. Xws li, koj yeej xav saib cov cheeb tsam saib pom tau los ntawm lub khw. Feem ntau qhov pom lossis pom ntawm lub monitor yuav tsum kwv yees li ntawm 9 mus rau 1.2 ntiv me dua lub raj kab hlau ntxig.
Daws teeb meem
Tag nrho CRT tus saib tam sim no raug xa mus rau cov saib xyuas multisync. Tus saib xyuas tau kho tus nqaj hlau electron hais tias nws muaj peev xwm nthuav tawm ntau yam kev daws teeb meem ntawm kev ua haujlwm tshiab. Ntawm no yog cov npe ntawm qee qhov kev siv ntau tshaj plaws uas tau siv nrog cov lus cim tseg rau qhov kev daws teeb meem no:
- SVGA = 800x600
- XGA = 1024x768
- SXGA = 1280x1024
- UXGA = 1600x1200
Nws muaj ntau yam kev txiav txim siab nyob hauv cov qauv kev cai uas tseem siv tau los ntawm lub monitor. Qhov nruab nrab 17 "CRT yuav tsum tau yooj yim ua qhov kev daws teeb meem ntawm SXGA thiab tej zaum tseem yuav ncav cuag lub UXGA. Txhua 21" los yog loj dua CRT yuav tsum tau ua UXGA thiab siab dua.
Cov Nyiaj Ntsuab Tshiab
Tus nqi tshiab no yog hais txog lub sij hawm qhov ntsuas tau dhau lub nqaj hla lub cheeb tsam tag nrho. Qhov no feem ntau yuav txawv nyob ntawm qhov chaw ntawm cov neeg siv tau ntawm lawv lub computer thiab qhov kev yees duab daim npav uas yog tsav tsheb yog qhov peev xwm ntawm. Tag nrho cov kev txhim kho tshiab los ntawm tuam ntxhab yuav sau qhov siab tshaj qhov qub nqi ntawm cov kev daws teeb meem. Tus xov tooj no muaj npe nyob hauv Hertz (Hz) los yog ib hlis ib zaug. Piv txwv, ib daim ntawv teev cov lus qhia yuav sau tau ib yam dab tsi zoo li 1280 x 1024 @ 100Hz. Qhov no txhais tau hais tias lub monitor muaj peev xwm ntawm kev sojntsuam txog kev tshuaj ntsuam 100 zaug ntawm ob zaug ntawm 1280x1024 kev daws teeb meem.
Yog li ntawd, vim li cas thiaj ua tau tus nqi tshiab dua? Saib CRT zaub ntev ntev yuav ua rau lub qhov muag qaug zog. Cov neeg saib xyuas uas ua haujlwm qis dua tshiab yuav ua rau qaug zog rau lub sijhawm luv luv. Feem ntau, nws yog qhov zoo tshaj plaws los sim thiab tau txais ib qho zaub uas yuav tso tawm ntawm 75 Hz los yog zoo dua ntawm qhov kev daws teeb meem. 60 Hz yog qhov tsawg kawg nkaus thiab yog qhov pheej hloov tshiab vim cov neeg tsav tsheb thiab saib xyuas hauv qhov rais.
Dot Suab
Ntau lub tuam txhab thiab cov khw muag khoom muag yuav tsis sau cov ntawv teev cov ntawv teev ntxiv. Qhov ntsuam xyuas no piv rau qhov luaj li cas ntawm ib qho pixel ntawm qhov screen hauv millimeters. Qhov no tended tau ib qho teeb meem nyob rau hauv lub xyoo dhau los ua cov ntxaij vab tshaus uas tau sim ua kom muaj kev txiav txim siab nrog cov pov thawj loj cov kev ntsuas kom muaj ib cov duab zoo vim qhov xim daj ntawm pixels ntawm qhov screen. Cov thaub qab ntawm cov duab qis dua yog qhov zoo dua qub thaum nws muab cov duab ntau dua kom meej meej. Feem ntau cov kev rau qhov no yuav yog nruab nrab ntawm .21 thiab .28 hli nrog feem ntau cov ntxaij uas muaj kev ntsuam xyuas nruab nrab li ntawm .25 hli.
Txee Loj
Ib cheeb tsam uas cov neeg siv feem ntau yuav tsis saib xyuas thaum nriav CRT tus saib yog qhov loj ntawm lub txee. CRT kev soj ntsuam yuav mob hnyav heev thiab hnyav thiab yog tias koj muaj ib qho nyiaj tsawg ntawm qhov chaw rooj, koj yuav tsis tas rau qhov luaj li cas ntawm qhov ntsuas uas koj tuaj yeem nyob hauv qhov chaw ntawd. Qhov no tseem ceeb heev rau qhov tob ntawm lub monitor. Muaj ntau lub computer workstations thiab cov rooj zaum yuav muaj txee uas haum nyob ib ncig ntawm lub monitor uas tseem muaj vaj huam sib luag rov qab. Loj saib xyuas nyob rau hauv xws li ib puag ncig yuav yuam tus saib xyuas tsis tshua muaj ze rau tus neeg siv los yog kev txwv cov keyboard siv.
Npav Contour
CRT qhia tam sim no muaj ntau txoj kev nkhaus mus rau sab xub ntiag ntawm qhov screen lossis raj. Thawj cov hlua zoo ib yam li TV tau teev muaj qhov sib npaug ntawm qhov ua kom yooj yim rau kev xa hluav taws xob xa hluav taws xob kom muab ib daim duab meej. Raws li cov txheej txheem technology nce, cov ntxig phab ntsa tuaj txog uas tseem muaj qhov contour ntawm sab laug thiab sab xis, tab sis ib qhov chaw tiaj tus vertically. Tam sim no CRT tus saib xyuas no muaj nyob nrog cov ntxaij nrig zoo nrig rau ob sab kab rov tav thiab ntsug. Yog li, qhov contour tseem ceeb li cas? Sib npaug ntawm cov npoo sib npaug yuav tsum muaj kev cuam tshuam ntau lub teeb ua rau pom kev ntawm qhov screen. Zoo li cov uas tsis tshua muaj zog, cov nqi ntau ntawm cov tsho rau ntawm lub computer screen nce qhov muag ntawm qhov muag nkees.