{"id":12626,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/jak-funguje-crt-monitor\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"jak-funguje-crt-monitor","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguje-crt-monitor\/","title":{"rendered":"Jak funguje CRT monitor"},"content":{"rendered":"<div class=\"articlecontent\">P\u0159edstavte se: CRT monitory, zn\u00e1m\u00e9 tak\u00e9 jako monitory s katodovou trubic\u00ed, byly p\u016fvodn\u011b pr\u016fmyslov\u00fdm standardem pro zobrazov\u00e1n\u00ed po\u010d\u00edta\u010dov\u00fdch a televizn\u00edch monitor\u016f. P\u0159esto\u017ee byly p\u0159ev\u00e1\u017en\u011b nahrazeny displeji LCD, je st\u00e1le z\u00e1sadn\u00ed pochopit, jak funguj\u00ed a jak\u00e9 jsou rozd\u00edly mezi technologiemi CRT a LCD. V tomto \u010dl\u00e1nku se budeme zab\u00fdvat vnit\u0159n\u00edm fungov\u00e1n\u00edm CRT monitor\u016f, v\u010detn\u011b toho, jak generuj\u00ed obraz, pro\u010d ji\u017e nejsou \u0161iroce pou\u017e\u00edv\u00e1ny a jak generuj\u00ed barvy. Jak funguje CRT monitor? V katodov\u00e9 trubici, velk\u00e9 sklen\u011bn\u00e9 vakuov\u00e9 trubici pou\u017e\u00edvan\u00e9 v CRT monitorech, jsou um\u00edst\u011bna t\u0159i elektronov\u00e1 d\u011bla &#8211; jedno pro ka\u017edou ze t\u0159\u00ed z\u00e1kladn\u00edch barev &#8211; jedno pro \u010dervenou, zelenou a modrou. Tato elektronov\u00e1 d\u011bla vys\u00edlaj\u00ed paprsky elektron\u016f na p\u0159edn\u00ed stranu obrazovky pokryt\u00e9 fosforem. Pixely, kter\u00e9 tvo\u0159\u00ed obrazovku, jsou tis\u00edce mal\u00fdch bod\u016f, kter\u00e9 se rozz\u00e1\u0159\u00ed, kdy\u017e na n\u011b dopadne paprsek elektron\u016f. Na obrazovce lze nastaven\u00edm intenzity jednotliv\u00fdch elektronov\u00fdch paprsk\u016f vytv\u00e1\u0159et r\u016fzn\u00e9 odst\u00edny a t\u00f3ny. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p>Jak se vytv\u00e1\u0159\u00ed obraz na CRT monitoru? Obrazov\u00fd sign\u00e1l je p\u0159en\u00e1\u0161en z po\u010d\u00edta\u010de nebo jin\u00e9ho zdroje videa na displej, aby se na CRT vytvo\u0159il obraz. Ka\u017ed\u00fd pixel na obrazovce m\u00e1 v tomto sign\u00e1lu informaci o sv\u00e9 barv\u011b a jasu. Tento sign\u00e1l p\u0159ij\u00edmaj\u00ed elektronov\u00e1 d\u011bla v CRT monitoru, kter\u00e1 jej pak pou\u017e\u00edvaj\u00ed k \u00faprav\u011b intenzity elektronov\u00fdch paprsk\u016f. P\u0159i horizont\u00e1ln\u00edm a vertik\u00e1ln\u00edm pohybu elektronov\u00fdch paprsk\u016f po obrazovce se rozsv\u00edt\u00ed luminofory na obrazovce a vytvo\u0159\u00ed se po\u017eadovan\u00fd obraz. Stabiln\u00ed obraz bez blik\u00e1n\u00ed se vytv\u00e1\u0159\u00ed opakov\u00e1n\u00edm postupu skenov\u00e1n\u00ed mnohokr\u00e1t za sekundu. Pro\u010d ji\u017e nepou\u017e\u00edv\u00e1me CRT? Zat\u00edmco d\u0159\u00edve byly CRT monitory standardem pro zobrazov\u00e1n\u00ed, nyn\u00ed je v\u011bt\u0161inou nahradily LCD monitory. Tato zm\u011bna m\u00e1 \u0159adu p\u0159\u00ed\u010din. Za prv\u00e9, CRT displeje zab\u00edraj\u00ed mnoho m\u00edsta na stole a jsou t\u011b\u017ekop\u00e1dn\u00e9 a t\u011b\u017ek\u00e9, tak\u017ee je n\u00e1ro\u010dn\u00e9 je p\u0159en\u00e1\u0161et. Za druh\u00e9 jsou kv\u016fli vy\u0161\u0161\u00ed spot\u0159eb\u011b energie m\u00e9n\u011b energeticky \u00fa\u010dinn\u00e9 ne\u017e monitory LCD. Nav\u00edc skenovac\u00ed mechanismus CRT monitor\u016f zp\u016fsobuje blik\u00e1n\u00ed, kter\u00e9 m\u016f\u017ee unavovat o\u010di. Naproti tomu statick\u00fd obraz a vy\u0161\u0161\u00ed obnovovac\u00ed frekvence monitor\u016f LCD zaji\u0161\u0165uj\u00ed p\u0159\u00edjemn\u011bj\u0161\u00ed z\u00e1\u017eitek ze sledov\u00e1n\u00ed. Jak CRT monitory vytv\u00e1\u0159ej\u00ed barvy? Barvy se na CRT monitorech vytv\u00e1\u0159ej\u00ed pomoc\u00ed procesu zn\u00e1m\u00e9ho jako aditivn\u00ed m\u00edch\u00e1n\u00ed barev. Ka\u017ed\u00e1 ze t\u0159\u00ed hlavn\u00edch barev &#8211; \u010derven\u00e1, zelen\u00e1 a modr\u00e1 &#8211; je v CRT monitoru vyr\u00e1b\u011bna jin\u00fdm elektronov\u00fdm d\u011blem, jak bylo pops\u00e1no v\u00fd\u0161e. Monitor m\u016f\u017ee zobrazovat r\u016fzn\u00e9 odst\u00edny t\u011bchto z\u00e1kladn\u00edch barev nastaven\u00edm intenzity jednotliv\u00fdch elektronov\u00fdch paprsk\u016f. Kdy\u017e paprsky dopadaj\u00ed na obrazovku pokrytou luminoforem, luminofory generuj\u00ed sv\u011btlo v odpov\u00eddaj\u00edc\u00edch odst\u00ednech, kter\u00e9 v kombinaci vytv\u00e1\u0159ej\u00ed cel\u00e9 spektrum barev rozeznateln\u00e9 lidsk\u00fdm okem. CRT monitory jsou schopny p\u0159esn\u011b reprodukovat \u0161irokou \u0161k\u00e1lu barev a pe\u010dlivou regulac\u00ed intenzity jednotliv\u00fdch barevn\u00fdch paprsk\u016f vytv\u00e1\u0159et \u017eiv\u00fd a p\u0159esn\u00fd obraz. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Shrnut\u00ed: <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> P\u0159esto\u017ee se CRT monitory ji\u017e nepou\u017e\u00edvaj\u00ed, pochopen\u00ed jejich fungov\u00e1n\u00ed je st\u00e1le d\u016fle\u017eit\u00e9 pro pochopen\u00ed v\u00fdvoje zobrazovac\u00edch technologi\u00ed. D\u00edky sv\u00e9 tenk\u00e9 konstrukci, energetick\u00e9 \u00faspornosti a zobrazen\u00ed bez blik\u00e1n\u00ed ovl\u00e1dly trh LCD monitory. CRT monitory v\u0161ak jako prvn\u00ed pou\u017e\u00edvaly elektronov\u00e9 paprsky k zap\u00e1len\u00ed luminofor\u016f na obrazovce, co\u017e jim umo\u017enilo vytv\u00e1\u0159et \u017eiv\u00e9 barevn\u00e9 displeje. Je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti p\u0159\u00ednos CRT monitor\u016f pro oblast vizu\u00e1ln\u00edch displej\u016f, proto\u017ee technologie se st\u00e1le vyv\u00edj\u00ed.<\/p><\/div>\n<div class=\"questions\">\n<div class=\"questionstitle\">FAQ<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Je CRT lep\u0161\u00ed pro hran\u00ed her?<\/div>\n<p> A\u010dkoli byly CRT monitory v minulosti obl\u00edben\u00e9, obvykle se nepova\u017euj\u00ed za lep\u0161\u00ed ne\u017e nov\u011bj\u0161\u00ed displeje, jako jsou LCD nebo LED monitory pro hran\u00ed her. Mezi v\u00fdhody CRT monitor\u016f pat\u0159\u00ed rychlej\u0161\u00ed doba odezvy a lep\u0161\u00ed reprodukce barev. Maj\u00ed v\u0161ak \u0159adu nedostatk\u016f, kter\u00e9 sni\u017euj\u00ed jejich atraktivitu pro hran\u00ed her. CRT monitory jsou velk\u00e9, t\u011b\u017ek\u00e9 a spot\u0159ebov\u00e1vaj\u00ed v\u00edce elektrick\u00e9 energie. Krom\u011b toho maj\u00ed \u010dasto men\u0161\u00ed mo\u017enosti velikosti obrazovky a hor\u0161\u00ed rozli\u0161en\u00ed. Nav\u00edc kv\u016fli blik\u00e1n\u00ed a vy\u0161\u0161\u00ed m\u00ed\u0159e elektromagnetick\u00e9ho z\u00e1\u0159en\u00ed mohou CRT displeje po del\u0161\u00edm pou\u017e\u00edv\u00e1n\u00ed nam\u00e1hat o\u010di. Obecn\u011b plat\u00ed, \u017ee kv\u016fli lep\u0161\u00ed kvalit\u011b obrazu, v\u011bt\u0161\u00edmu rozli\u0161en\u00ed, v\u011bt\u0161\u00ed obrazovce a energetick\u00e9 \u00fa\u010dinnosti d\u00e1vaj\u00ed hr\u00e1\u010di p\u0159ednost monitor\u016fm LCD nebo LED. <\/p>\n<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Pro\u010d je CRT lep\u0161\u00ed ne\u017e LCD?<\/div>\n<p> Zat\u00edmco d\u0159\u00edve byly CRT monitory hojn\u011b vyu\u017e\u00edv\u00e1ny, od t\u00e9 doby LCD monitory p\u0159edstihly v popularit\u011b CRT monitory d\u00edky \u0159ad\u011b v\u00fdhod. N\u00ed\u017ee je uvedeno n\u011bkolik zd\u016fvodn\u011bn\u00ed, pro\u010d jsou LCD monitory up\u0159ednost\u0148ov\u00e1ny p\u0159ed CRT monitory: V porovn\u00e1n\u00ed s CRT monitory jsou LCD monitory podstatn\u011b ten\u010d\u00ed a leh\u010d\u00ed, co\u017e zmen\u0161uje prostor a usnad\u0148uje cestov\u00e1n\u00ed. 2. Energetick\u00e1 \u00fa\u010dinnost: LCD monitory spot\u0159ebov\u00e1vaj\u00ed mnohem m\u00e9n\u011b energie ne\u017e CRT monitory. To nejen sni\u017euje n\u00e1klady na elektrickou energii, ale tak\u00e9 podporuje ochranu \u017eivotn\u00edho prost\u0159ed\u00ed. 3. Vizu\u00e1ln\u00ed p\u0159ita\u017elivost: LCD displeje obvykle nab\u00edzej\u00ed ost\u0159ej\u0161\u00ed a barevn\u011bj\u0161\u00ed obraz ne\u017e CRT displeje. Nab\u00edzej\u00ed alternativy pro zv\u00fd\u0161en\u00ed rozli\u0161en\u00ed, co\u017e umo\u017e\u0148uje p\u0159esn\u011bj\u0161\u00ed a jasn\u011bj\u0161\u00ed zobrazen\u00ed. 4. Zobrazen\u00ed bez blik\u00e1n\u00ed: Elektronov\u00fd paprsek, kter\u00fd CRT displeje pou\u017e\u00edvaj\u00ed k neust\u00e1l\u00e9mu obnovov\u00e1n\u00ed obrazovky, m\u016f\u017ee zp\u016fsobovat blik\u00e1n\u00ed. Statick\u00e9 zobrazen\u00ed displej\u016f LCD naproti tomu umo\u017e\u0148uje pohodln\u011bj\u0161\u00ed sledov\u00e1n\u00ed a men\u0161\u00ed \u00fanavu o\u010d\u00ed. 5. M\u00e9n\u011b odlesk\u016f a odraz\u016f: Sklen\u011bn\u00e1 obrazovka CRT monitor\u016f m\u016f\u017ee odr\u00e1\u017eet sv\u011btlo a vytv\u00e1\u0159et odlesky, co\u017e zt\u011b\u017euje viditelnost obrazovky v jasn\u011b osv\u011btlen\u00fdch prostor\u00e1ch. U monitor\u016f LCD se \u010dasto pou\u017e\u00edvaj\u00ed antireflexn\u00ed vrstvy, kter\u00e9 tyto probl\u00e9my sni\u017euj\u00ed. V\u00fdhody pro va\u0161e zdrav\u00ed: LCD monitory na rozd\u00edl od CRT monitor\u016f neprodukuj\u00ed z\u00e1\u0159en\u00ed. Z tohoto d\u016fvodu jsou LCD monitory bezpe\u010dn\u011bj\u0161\u00ed volbou pro dlouhodob\u00e9 pou\u017e\u00edv\u00e1n\u00ed, co\u017e sni\u017euje p\u0159\u00edpadn\u00e1 zdravotn\u00ed rizika. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> V\u011bt\u0161ina spot\u0159ebitel\u016f nyn\u00ed d\u00e1v\u00e1 p\u0159ednost monitor\u016fm LCD p\u0159ed monitory CRT, p\u0159esto\u017ee monitory CRT mohou m\u00edt st\u00e1le ur\u010dit\u00e9 v\u00fdhody, pokud jde o p\u0159esnost barev a dobu odezvy.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>P\u0159edstavte se: CRT monitory, zn\u00e1m\u00e9 tak\u00e9 jako monitory s katodovou trubic\u00ed, byly p\u016fvodn\u011b pr\u016fmyslov\u00fdm standardem pro zobrazov\u00e1n\u00ed po\u010d\u00edta\u010dov\u00fdch a televizn\u00edch monitor\u016f. P\u0159esto\u017ee byly p\u0159ev\u00e1\u017en\u011b nahrazeny displeji LCD, je st\u00e1le z\u00e1sadn\u00ed pochopit, jak funguj\u00ed a jak\u00e9 jsou rozd\u00edly mezi technologiemi CRT a LCD. V tomto \u010dl\u00e1nku se budeme zab\u00fdvat vnit\u0159n\u00edm fungov\u00e1n\u00edm CRT monitor\u016f, v\u010detn\u011b toho, jak &#8230; <a title=\"Jak funguje CRT monitor\" class=\"read-more\" href=\"https:\/\/tech-lib.eu\/tech\/jak-funguje-crt-monitor\/\" aria-label=\"\u010c\u00edst v\u00edce o Jak funguje CRT monitor\">\u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":3680,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1035],"tags":[],"class_list":["post-12626","post","type-post","status-publish","format-standard","hentry","category-technologie-zobrazeni"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/12626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/3680"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=12626"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/12626\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=12626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=12626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=12626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}