Waa maxay heerka ugu helid

In times of kormeerayaasha iyo telefishannada, abuuray oo ku saleysan CRT ah (tube ray cathode), qof kastaaba wuxuu lahaa si ay ugu yaraan wax fikrad guud waxa heerka helid ah. Haddii aan, dabcan, waxaa muhiim ahayd inuu in nafo

aragga, imtixaan, madax-xanuun iyo raaxo la'aan socda halka ka shaqeeya computer ama daawashada barnaamijyada TV. Waxaan dhihi karaa in heerka helid screen ahaa si dadban la xiriira caafimaadka. Maalmahan, xaalada ayaa si qoto dheer obrazomizmenilas. Waxaa la abuuray qalab macluumaad bandhigay garaafyada isticmaalaya mabaadiida gebi ahaanba kala duwan ee hawlgalka ka badan technology CRT. In kasta oo shaashadda LCD iyo kormeerayaasha TV waa sidaas ma kaamil ah, in ay ka hadlaan ammaanka complete: saamaynta on aragga waxaa si weyn u dhimay, laakiin ma aha gebi ahaanba la joojiyey.

Ka jawaab su'aasha ah waxa heerka helid shaashadda, waa fudud si ay milkiilayaasha of kormeerayaasha computer. Haddii aad isticmaalayso nidaamka Windows ka hawlgala version ugu dambeeyay, waxaa lagama maarmaan ah in meel kasta oo lacag la'aan ah oo ku saabsan desktop soo bandhigayaa menu ah by riixaya badhanka mouse xaq, oo ku jira liiska muuqata, dooro "Xallinta Screen." Next, sii wad in ay "Advanced Settings". Halkan, tab furitaanka "La soco", waxaad ka arki kartaa khadka "duuliye ee helid shaashadda."

In kormeerayaasha casriga ah ku salaysan kiristaalo dareere ah, sida caadiga ah la heli karo 59 iyo 60 Hz - waa lagu daydo-dhamaadka hooseeyo; in ka qaalisan waxaa lagu dhigay karaa 75 iyo 100 Hz. Raaxayn lahaa heerka screen LCD - dhaxalgal ah ee Zaman ee CRT. The lagu daydo crystal dareere "by isha" in la kala saaro 60 iyo 100 Hz ee aan macquul aheyn. Waxa kaliya ee hadda saamayn ku meel this - dhaqdhaqaaqa siman of dulqabo mouse ah oo awood u leh inay u isticmaalaan 3D-koob (100 Hz loo baahan yahay xaggooda).

Laakiin wakhtigii CRT waxay ahayd kala duwan. Oogada gudaha ee shaashadda (tube) qariyeen lakabka ah ee wax gaar ah (phosphor) uu yahey awood u rabtay yar ka dib waxa soo galaya electrons. Saddex electrodes (qoriga) by hawada qayb radiated socodka kuwaas oo mooshin saxo field magnetic. Waxaa deflects rays ka soo line toos u horeysay bilaabeen inay iska Ifto koonaha bidix ee sare ee shaashadda, ka dibna qulquli luminescence laaluusheen on line ka siman in ay

geeska midig ee sare. dogob Next hoos u wareejiyay mid ka mid ah oo isku xigta oo dhan soo noqnoqda. Markay koonaha midig, uu dib ugu bilowgii yimid iyo wax kasta oo lagu celceliyo. Tirada screens oo kale ay barbaro galeen markii labaad oo la mid ah waa heerka helid ah.

xakamaysada LCD The eegista bedeli kartaa gudbinta iftiinka iyada oo xubno ka crystal dareere ah furta - isku mar u guban kara iyo ku damiyaan shaashadda. Eller backlight laftiisa - taasi waa khaladkaasi ay ugu danbeysay in si firfircoon uga reebay ee ku dayashada cusub ee kormeerayaasha. screen phosphor waxaa weli Nuuri, abuuro khayaal ah ee sawir guud. Indhaha kaliya ma haysan waqti ay ku aragto flicker uu keeno warsiinta joogtada ah ee images. Si kastaba ha ahaatee, waxa goob joog ka ahaa, iyo mawjadaha update hoos ku 75 Hz sicad ahaa aragtida durugsan. Si aad u baabi'iyo this saamayn saarayaasha jeediyay Kormeerayaasha xitaa la mawjadaha kor 120 Hz. Dabcan, nidaamkan waxaa fududeeyey waxgarashada - ma waxaan ka fiirsan formation of midabka iyo image waa.