{"id":4977,"date":"2023-06-20T23:04:08","date_gmt":"2023-06-20T21:04:08","guid":{"rendered":"https:\/\/sajberinfo.com\/?p=4977"},"modified":"2024-02-10T15:33:22","modified_gmt":"2024-02-10T14:33:22","slug":"ima-li-cuvar-ekrana-upotrebu-danas","status":"publish","type":"post","link":"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/","title":{"rendered":"Ima li \u010duvar ekrana upotrebu danas?"},"content":{"rendered":"<p><span style=\"font-size: 14pt;\">U osnovi, \u010duvar ekrana (eng. <em>screen saver<\/em>) je program za prikaz koji se pokre\u0107e kada sistem ostane neaktivan odre\u0111eno vreme. Kada se \u010duvar ekrana aktivira, monitor se osloba\u0111a stati\u010dkog ekrana tako \u0161to prikazuje ili prazan ekran ili dinami\u010dke, animirane obrasce.<\/span><\/p>\n<div id=\"attachment_4980\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4980\" class=\"size-full wp-image-4980\" src=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/maxresdefault.jpg\" alt=\"\u010duvar ekrana \" width=\"1024\" height=\"576\" srcset=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/maxresdefault.jpg 1024w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/maxresdefault-300x169.jpg 300w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/maxresdefault-768x432.jpg 768w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/maxresdefault-18x10.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-4980\" class=\"wp-caption-text\"><em>3D Pipes &#8211; Classic Screensaver Windows 98<\/em><\/p><\/div>\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sadr\u017eaj<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #ffffff;color:#ffffff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #ffffff;color:#ffffff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#CUVAR_EKRANA\" >\u010cUVAR EKRANA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#ISTORIJA\" >ISTORIJA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#LCD_I_LED_EKRANI\" >LCD I LED EKRANI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#OLED_I_AMOLED_EKRANI\" >OLED I AMOLED EKRANI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#CUVAR_EKRANA_I_STEDNJA_ENERGIJE\" >\u010cUVAR EKRANA I \u0160TEDNJA ENERGIJE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/sajberinfo.com\/en\/2023\/06\/20\/ima-li-cuvar-ekrana-upotrebu-danas\/#ZAKLJUCAK\" >ZAKLJU\u010cAK<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"western\"><span class=\"ez-toc-section\" id=\"CUVAR_EKRANA\"><\/span><span style=\"font-size: 14pt;\"><strong>\u010cUVAR EKRANA<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Ne\u0161to stariji korisnici \u0107e se sjetiti beskrajno lete\u0107eg <em>Windows<\/em> logotipa ili beskona\u010dnih <em>3D<\/em> cijevi koji su neumorno pojavljivali na ekranima u situacijama kada bi korisnik napravio du\u017eu pauzu u radu na ra\u010dunaru. Za ve\u0107inu korisnika, ovo sje\u0107anje je zakopano duboko u pro\u0161losti.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Iako se \u010dini da su \u010duvari ekrana stvar pro\u0161losti, jo\u0161 uvije se nalaze u pode\u0161avanjima. Postavlja se pitanje da li su \u010duvari ekrana jo\u0161 uvijek korisni i upotrebljivi ili su ostali tu kao nostalgi\u010dna zabava iz pro\u0161losti?<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"ISTORIJA\"><\/span><span style=\"font-size: 14pt;\"><strong>ISTORIJA<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Ra\u010dunari su u po\u010detku imali monitore sa katodnim cijevima (eng. <em>cathode ray tube \u2013 CRT<\/em>). U ovom slu\u010daju, ekran je bio staklena cijev sa elektromagnetnim sistemom otklona i fosforescentnim ekranom koji svetili kada ga udari elektronski snop.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Zbog tehnolo\u0161kog na\u010dina funkcionisanja <em>CRT<\/em> monitora, kada se na ekranu prikazuje stati\u010dna slika du\u017ee vrijeme, ona mo\u017ee da \u201c<em>progori<\/em>\u201d u ekran. Tehni\u010dki govore\u0107i, dijelovi fosforescentnog ekrana svijetle toliko dugo da se neravnomjerno tro\u0161e, a to za posljedicu ima prikaz slabije slike duha koja se mo\u017ee vidjeti kada je ekran isklju\u010den.<\/span><\/p>\n<div id=\"attachment_4982\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4982\" class=\"size-full wp-image-4982\" src=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/CRT.webp\" alt=\"CRT\" width=\"1024\" height=\"729\" srcset=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/CRT.webp 1024w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/CRT-300x214.webp 300w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/CRT-768x547.webp 768w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/CRT-18x12.webp 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-4982\" class=\"wp-caption-text\"><em>Cathode ray tube \u2013 CRT; Source: Techdifferences<\/em><\/p><\/div>\n<p><span style=\"font-size: 14pt;\">Kako bi se rije\u0161io ovaj problem, po\u010dinje upotreba \u010duvara ekrana. \u010cuvari ekrana su spre\u010davali tro\u0161enje fosforescentnog ekrana automatskim aktiviranjem kada upaljeni ra\u010dunar korisnik nije koristio odre\u0111eni vremenski period. \u010cuvanje ekrana se odvijalo kroz prikaz animacije koje se stalno kre\u0107e i mijenja, \u0161to zna\u010di da stati\u010dna slika ne mo\u017ee da ostane na ekranu predugo.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Zbog tog je i naziv \u201c<em>\u010duvar<\/em> <em>ekrana<\/em>\u201d jer je stvarno \u010duvao ekran od progorijevanja.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Prvi \u010duvar ekrana razvio je programer po imenu D\u017eon So\u010da-Lejaloha (eng. <em>John Socha-Leialoha<\/em>) i bio je to jednostavan program koji je prikazivao prazan ekran svaki put kada bi ra\u010dunar bio neaktivan tri minuta. Prakti\u010dnost njegovog programa <em>ScrnSave<\/em> dovela je do toga da drugi programeri slijede njegov primjer. Pojavio se ogroman talas vizuelno prijatnih aplikacija za \u010duvanje ekrana, od kojih je svaka razvijena za odre\u0111eni softver. Prakti\u010dna primjena i vizuelan popularnost \u010duvara ekrana nije opadala sve do kraja 90-th godina i pojave <em>LCD<\/em> ekrana.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-size: 14pt;\"><strong><em>LCD<\/em> I <em>LED<\/em> EKRANI<br \/>\n<\/strong><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Danas su \u010duvari ekrana skoro nestali, pa ih je \u010dak i kompanija <em>Microsoft<\/em> \u201c<em>zakopala<\/em>\u201d duboko u pode\u0161avanjima. Tome je doprinijeo razvoj <em>LCD<\/em> (eng. <em>liquid crystal display<\/em>) i <em>LED<\/em> (eng. <em>light-emitting diode<\/em>) ekrana koji su danas najvi\u0161e zastupljeni ekrani na tr\u017ei\u0161tu i koji nadma\u0161uju stare <em>CRT<\/em> monitore, ali to ne zna\u010di da \u010duvari ekrana ne\u0107e i njima pomo\u0107i.<\/span><\/p>\n<div id=\"attachment_4983\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4983\" class=\"size-full wp-image-4983\" src=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/lcd-led.webp\" alt=\"lcd - led\" width=\"1024\" height=\"856\" srcset=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/lcd-led.webp 1024w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/lcd-led-300x251.webp 300w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/lcd-led-768x642.webp 768w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/lcd-led-14x12.webp 14w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-4983\" class=\"wp-caption-text\"><em>LCD (eng. liquid crystal display) i LED (eng. light-emitting diode); Source: Ledisplaysign<\/em><\/p><\/div>\n<p><span style=\"font-size: 14pt;\"><em>LCD<\/em> i <em>LED<\/em> ekrani su ipak podlo\u017eni progorijevanju ekrana, ali njihova tehnologija izrade im omogu\u0107ava da taj ne\u017eeljeni efekat u odre\u0111enim situacijama nestane nakon nekog vremena. Pored toga, ve\u0107ina televizijskih ekrana danas ima funkciju sli\u010dnu \u010duvaru ekrana koja spre\u010dava progorijevanje.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Pri normalnoj upotrebi, <em>LCD<\/em> i <em>LED<\/em> ekrani ne\u0107e pretrpjeti progorijevanje slike, ali ako ekran ostane na jednom kanalu satima svakog dana, onda urezivanje mo\u017ee postati problem, kao \u0161to bi bilo sa skoro svakim ekranom i kada se to desi, nepovratno je. To je jednostavno zbog na\u010dina na koji ovi ekrani funkcioni\u0161u.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-size: 14pt;\"><strong><em>OLED<\/em> I <em>AMOLED<\/em> EKRANI<br \/>\n<\/strong><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Danas postoji jo\u0161 jedan scenario u kojem bi \u010duvari ekrana mogli biti korisni. <em>OLED <\/em>i <em>AMOLED<\/em> monitori polako postaju sve popularniji, ali su podlo\u017eniji progorijevanju od <em>LCD<\/em> monitora.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Ekrani sa svijetle\u0107im diodama koje emituju svjetlost (eng. <em>organic light-emitting diode \u2013 OLED<\/em>) i aktivne matri\u010dne organske diode koje emituju svjetlost (eng. <em>active matrix organic light-emitting diode \u2013 AMOLED<\/em>) su izgra\u0111eni od organskih materijala koji vremenom degradiraju. Ovi ekrani koriste tehnologiju koja se sama emituje, \u0161to zna\u010di da nije potrebno pozadinsko osvjetljenje. Svaki piksel generi\u0161e sopstvenu svjetlost, koja \u0107e postepeno slabiti tokom \u017eivotnog vijeka proizvoda.<\/span><\/p>\n<div id=\"attachment_4984\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4984\" class=\"size-full wp-image-4984\" src=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/amole-oled.webp\" alt=\"amole-oled\" width=\"1024\" height=\"439\" srcset=\"https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/amole-oled.webp 1024w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/amole-oled-300x129.webp 300w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/amole-oled-768x329.webp 768w, https:\/\/sajberinfo.com\/wp-content\/uploads\/2023\/06\/amole-oled-18x8.webp 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-4984\" class=\"wp-caption-text\"><em>Active matrix organic light-emitting diode \u2013 AMOLED i Organic light-emitting diode \u2013 OLED ; Source: Howstuffworks<\/em><\/p><\/div>\n<p><span style=\"font-size: 14pt;\">U ovom slu\u010daju progorijevanje odnosi se na ovu postepenu degradaciju piksela, a trajno zadr\u017eavanje slike na ovim ekranima je uzrokovano neujedna\u010denom degradacijom piksela od kojih se ekran sastoji i javlja se kada odre\u0111eni skup piksela degradira razli\u010ditom brzinom od onih oko njih.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Zbog toga, korisnici koji koriste ove ekrane i imaju naviku da ostave ekran uklju\u010den du\u017ei vremenski period, mo\u017eda bi trebalo da razmisle o kori\u0161tenju \u010duvara ekrana. Ipak, mnogo bolje rije\u0161enje je podesiti da se ekran isklju\u010di kada je neaktivan.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CUVAR_EKRANA_I_STEDNJA_ENERGIJE\"><\/span><span style=\"font-size: 14pt;\"><strong>\u010cUVAR EKRANA I \u0160TEDNJA ENERGIJE<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Kod odre\u0111enog broja korisnika postoji zabluda da \u010duvari ekrana \u0161tede energiju, \u0161to je o\u010digledna pogre\u0161na interpretacija da \u010duvari ekrana zapravo \u201c<em>\u010duvaju<\/em>\u201d energiju. Istina je zapravo da \u010duvari ekrana ne \u0161tede energiju, ve\u0107 oni tro\u0161e vi\u0161e energije kako bi dr\u017eali ekran uklju\u010denim i reprodukovali\u00a0 animaciju na ekranu.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Grafi\u010dki intenzivan <em>3D<\/em> \u010duvar ekrana koji koristi grafi\u010dki hardver za prikazivanje komplikovanih <em>3D<\/em> scena koristi\u0107e jo\u0161 vi\u0161e energije, stavljaju\u0107i ra\u010dunar u re\u017eim igranja i tro\u0161e\u0107i struju kada niste ni za ra\u010dunarom.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Dana\u0161nji ekrani imaju funkcije za u\u0161tedu energije, pa je za korisnike mo\u017eda bolje da ne podese ure\u0111aj da prikazuje \u010duvar ekrana, ve\u0107 da podese ure\u0111aj da automatski isklju\u010di ekran kada se on ne koristi. Ovo \u0107e \u0107e u\u0161tedjeti elektri\u010dnu energiju i u\u0161tedjeti energiju baterije i nekoliko ciklusa punjenja na prenosnim ure\u0111ajima.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"ZAKLJUCAK\"><\/span><span style=\"font-size: 14pt;\"><strong>ZAKLJU\u010cAK<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-size: 14pt;\">Problem sa progorijevanjem ekrana ne nestaje u potpunosti, ali to tako\u0111e nije toliki problem kao \u0161to je nekada bio, zahvaljuju\u0107i pobolj\u0161anjima u proizvodnji i kompenzaciji uz pomo\u0107 softvera. Sve ovo zna\u010di da \u0107e kod jednog broja korisnika nostalgija imati ogromnu ulogu, dok kod drugih to \u0107e biti izbor da prije gledaju u vizuelno privla\u010dne animacije, nego u stati\u010dnu mrtvu povr\u0161inu. Ostali korisnici se mo\u017eda odlu\u010de za ga\u0161enje ekrana i u\u0161tedu energije.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Kako god, izbor je na korisnicima i njihovim navikama upotrebe ure\u0111aja, ali na kraju korisnici ne bi trebalo da primijete razliku izme\u0111u kori\u0161tenja \u010duvara ekrana i funkcije u\u0161tede energije, jer svakako u tom periodu ne koriste ure\u0111aj.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>U osnovi, \u010duvar ekrana (eng. screen saver) je program za prikaz koji se pokre\u0107e kada sistem ostane neaktivan odre\u0111eno vreme. Kada se \u010duvar ekrana aktivira, monitor se osloba\u0111a stati\u010dkog ekrana tako \u0161to prikazuje ili&#46;&#46;&#46;<\/p>","protected":false},"author":1,"featured_media":4980,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[441,437,438,439,440,442,436],"class_list":["post-4977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-info","tag-amoled","tag-crt","tag-lcd","tag-led","tag-oled","tag-power-saving","tag-screen-saver"],"_links":{"self":[{"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/posts\/4977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/comments?post=4977"}],"version-history":[{"count":0,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/posts\/4977\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/media\/4980"}],"wp:attachment":[{"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/media?parent=4977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/categories?post=4977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sajberinfo.com\/en\/wp-json\/wp\/v2\/tags?post=4977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}