{"id":9975,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/jak-funguje-televizni-obrazovka\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"jak-funguje-televizni-obrazovka","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguje-televizni-obrazovka\/","title":{"rendered":"Jak funguje televizn\u00ed obrazovka?"},"content":{"rendered":"
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Jak p\u0159en\u00e9st obraz z telefonu do TV?<\/div>\n
Nejrychlej\u0161\u00ed cestou je spu\u0161t\u011bn\u00ed funkce Smart View z oznamovac\u00ed li\u0161ty Va\u0161eho telefonu. Po spu\u0161t\u011bn\u00ed budou vyhled\u00e1ny televize, kter\u00e9 se nach\u00e1zej\u00ed na stejn\u00e9 WiFi s\u00edti jako V\u00e1\u0161 telefon. Sta\u010d\u00ed vybrat televizor ke kter\u00e9mu se chcete p\u0159ipojit, spojen\u00ed prob\u011bhne automaticky. Spust\u00ed se re\u017eim sd\u00edlen\u00ed obrazovky.<\/div>\n
\n\t\t\t\t\t Dal\u0161\u00ed informace najdete na<\/span> www.samsung.com<\/a>\n\t\t\t\t<\/div>\n<\/p><\/div>\n
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N\u00e1\u0161 ka\u017edodenn\u00ed \u017eivot se ji\u017e neobejde bez z\u00e1bavy, zpr\u00e1v a informac\u00ed, kter\u00e9 n\u00e1m poskytuje televize. P\u0159em\u00fd\u0161leli jste v\u0161ak n\u011bkdy o tom, jak tyto obrazovky funguj\u00ed? V tomto \u010dl\u00e1nku se budeme zab\u00fdvat zaj\u00edmavou technologi\u00ed, kter\u00e1 je z\u00e1kladem televizn\u00edch obrazovek, a vysv\u011btl\u00edme si, jak vznikaj\u00ed vizu\u00e1ln\u00ed obrazy, kter\u00e9 vid\u00edme. Jak televizor funguje krok za krokem? <\/p>\n

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Elektromagnetick\u00e9 sign\u00e1ly, kter\u00e9 jsou p\u0159en\u00e1\u0161eny vzduchem nebo kabelem, jsou p\u0159ij\u00edm\u00e1ny a zobrazov\u00e1ny televizorem. Kamera nebo jin\u00fd zdroj obrazu zachyt\u00ed vizu\u00e1ln\u00ed data, \u010d\u00edm\u017e se proces zah\u00e1j\u00ed. Pot\u00e9 jsou tato data p\u0159evedena na elektronick\u00e9 impulsy a doru\u010dena do vys\u00edla\u010de. Vys\u00edla\u010d sign\u00e1ly p\u0159ed p\u0159enosem p\u0159evede na elektromagnetick\u00e9 vlny. <\/p>\n

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Tyto vlny jsou zachyceny a p\u0159eneseny do televizoru pomoc\u00ed televizn\u00ed ant\u00e9ny nebo kabelu na p\u0159ij\u00edmac\u00ed stran\u011b. Televizn\u00ed p\u0159ij\u00edma\u010d se skl\u00e1d\u00e1 z n\u011bkolika \u010d\u00e1st\u00ed, v\u010detn\u011b demodul\u00e1toru, obrazov\u00e9ho procesoru a tuneru. Tuner z p\u0159\u00edchoz\u00edch vln vybere p\u0159\u00edslu\u0161n\u00fd kan\u00e1l a extrahuje zvukov\u00e9 a obrazov\u00e9 sign\u00e1ly. Sign\u00e1ly jsou n\u00e1sledn\u011b dek\u00f3dov\u00e1ny demodul\u00e1torem a odesl\u00e1ny do obrazov\u00e9ho procesoru. Dek\u00f3dovan\u00e9 sign\u00e1ly proch\u00e1zej\u00ed videoprocesorem, kde jsou form\u00e1tov\u00e1ny pro televizn\u00ed zobrazen\u00ed. Zpracovan\u00e9 sign\u00e1ly jsou n\u00e1sledn\u011b p\u0159eneseny na obrazovku, kde jsou p\u0159evedeny na vizu\u00e1ln\u00ed obraz. Jak funguje LED televizn\u00ed displej? <\/p>\n

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Mezi obl\u00edben\u00e9 modely televizor\u016f, kter\u00e9 vyu\u017e\u00edvaj\u00ed podsv\u00edcen\u00ed LED, pat\u0159\u00ed televizory LED (Light Emitting Diode). Televizory LED pou\u017e\u00edvaj\u00ed mal\u00e9 sv\u011bteln\u00e9 diody nam\u00edsto z\u00e1\u0159ivek, kter\u00e9 jsou metodou podsv\u00edcen\u00ed pou\u017e\u00edvanou u b\u011b\u017en\u00fdch televizor\u016f LCD (Liquid Crystal Display). Displej LCD je zezadu osv\u011btlen soustavou mal\u00fdch diod pou\u017eit\u00fdch v podsv\u00edcen\u00ed LED. D\u00edky mo\u017enosti individu\u00e1ln\u00edho ovl\u00e1d\u00e1n\u00ed t\u011bchto diod lze p\u0159esn\u011b nastavit jas a kontrast obrazovky. V\u00fdsledkem je barevn\u011bj\u0161\u00ed a energeticky \u00fasporn\u011bj\u0161\u00ed displej. <\/p>\n

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Ve srovn\u00e1n\u00ed s d\u0159\u00edv\u011bj\u0161\u00edmi verzemi LCD poskytuj\u00ed LED televizory tak\u00e9 \u0161ir\u0161\u00ed pozorovac\u00ed \u00fahly a vy\u0161\u0161\u00ed v\u011brnost barev. V LED televizorech lze pou\u017e\u00edt b\u00edl\u00e9 nebo RGB (\u010derven\u00e9, zelen\u00e9 a modr\u00e9) diody, p\u0159i\u010dem\u017e RGB diody nab\u00edzej\u00ed \u0161ir\u0161\u00ed barevn\u00e9 spektrum a p\u0159esn\u011bj\u0161\u00ed reprodukci barev. <\/p>\n

Jak\u00fd proces pou\u017e\u00edv\u00e1 televizor k zobrazen\u00ed obrazu na obrazovce? <\/div>\n

Tekut\u00e9 krystaly, luminofory a pixely jsou jen n\u011bkter\u00e9 z technologi\u00ed pou\u017e\u00edvan\u00fdch k vytv\u00e1\u0159en\u00ed vizu\u00e1ln\u00edho obrazu na televizn\u00ed obrazovce. V LCD televizorech jsou tekut\u00e9 krystaly upraveny tak, aby kontrolovaly mno\u017estv\u00ed proch\u00e1zej\u00edc\u00edho sv\u011btla, p\u0159i\u010dem\u017e jsou vlo\u017eeny mezi dv\u011b vrstvy skla. <\/p>\n

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Kapaln\u00e9 krystaly jako clona selektivn\u011b propou\u0161t\u011bj\u00ed nebo blokuj\u00ed sv\u011btlo z podsv\u00edcen\u00ed LED. R\u016fzn\u00e9 \u00farovn\u011b sv\u011btla mohou proch\u00e1zet tekut\u00fdmi krystaly p\u0159i r\u016fzn\u00fdch nap\u011bt\u00edch a vytv\u00e1\u0159et tak po\u017eadovan\u00fd obraz. RGB filtry ve spojen\u00ed s tekut\u00fdmi krystaly v LED televizorech pom\u00e1haj\u00ed vytv\u00e1\u0159et kompletn\u00ed spektrum barev. Barevn\u00e9 pixely, kter\u00e9 tvo\u0159\u00ed obraz na obrazovce, vznikaj\u00ed p\u0159i pr\u016fchodu podsv\u00edcen\u00ed tekut\u00fdmi krystaly a filtry. Jak funguj\u00ed televizory LCD nebo LED? <\/p>\n

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Z\u00e1kladn\u00ed koncept fungov\u00e1n\u00ed manipulace s tekut\u00fdmi krystaly pro regulaci mno\u017estv\u00ed proch\u00e1zej\u00edc\u00edho sv\u011btla je u televizor\u016f LCD i LED stejn\u00fd. Nejv\u011bt\u0161\u00ed rozd\u00edl spo\u010d\u00edv\u00e1 v technologii pou\u017eit\u00e9 pro podsv\u00edcen\u00ed. <\/p>\n

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V LCD televizorech se jako podsv\u00edcen\u00ed pou\u017e\u00edvaj\u00ed z\u00e1\u0159ivky, kter\u00e9 poskytuj\u00ed b\u00edl\u00e9 sv\u011btlo, je\u017e proch\u00e1z\u00ed tekut\u00fdmi krystaly. Naproti tomu u televizor\u016f LED se jako podsv\u00edcen\u00ed pou\u017e\u00edvaj\u00ed mal\u00e9 sv\u011bteln\u00e9 diody, kter\u00e9 umo\u017e\u0148uj\u00ed lep\u0161\u00ed kontrolu nad jasem a kontrastem. <\/p>\n

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Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee televizn\u00ed displeje p\u0159ij\u00edmaj\u00ed a zpracov\u00e1vaj\u00ed elektromagnetick\u00e9 sign\u00e1ly a pot\u00e9 je p\u0159ev\u00e1d\u011bj\u00ed na vizu\u00e1ln\u00ed obraz s vyu\u017eit\u00edm komponent, jako jsou tekut\u00e9 krystaly, luminofory a pixely. Ve srovn\u00e1n\u00ed se star\u0161\u00edmi verzemi LCD maj\u00ed LED televizory d\u00edky sv\u00e9mu LED osv\u011btlen\u00ed lep\u0161\u00ed energetickou \u00fa\u010dinnost, p\u0159esnost barev a pozorovac\u00ed \u00fahly. Pokud pochop\u00edme, jak televizn\u00ed obrazovky funguj\u00ed, m\u016f\u017eeme l\u00e9pe ocenit sofistikovanou technologii, kter\u00e1 je z\u00e1kladem tohoto b\u011b\u017en\u00e9ho za\u0159\u00edzen\u00ed.<\/p><\/div>\n

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FAQ<\/div>\n
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Je televizor s plochou obrazovkou st\u0159\u00eddav\u00fd, nebo stejnosm\u011brn\u00fd?<\/div>\n

K nap\u00e1jen\u00ed televizor\u016f s plochou obrazovkou se \u010dasto pou\u017e\u00edv\u00e1 st\u0159\u00eddav\u00fd proud (AC). Elekt\u0159ina, kter\u00e1 nap\u00e1j\u00ed na\u0161e dom\u00e1cnosti, m\u00e1 podobu st\u0159\u00eddav\u00e9ho proudu. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee vnit\u0159n\u00ed \u010d\u00e1sti televizoru s plochou obrazovkou, v\u010detn\u011b syst\u00e9mu podsv\u00edcen\u00ed a dal\u0161\u00edch elektronick\u00fdch sou\u010d\u00e1st\u00ed, \u010dasto pot\u0159ebuj\u00ed k efektivn\u00ed pr\u00e1ci jak st\u0159\u00eddav\u00fd, tak stejnosm\u011brn\u00fd proud. Televizor obvykle pou\u017e\u00edv\u00e1 vnit\u0159n\u00ed zdroj nap\u00e1jen\u00ed, kter\u00fd p\u0159ev\u00e1d\u00ed st\u0159\u00eddav\u00fd proud na stejnosm\u011brn\u00fd. <\/p>\n<\/div>\n

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Jak\u00fd je syst\u00e9m televizoru?<\/div>\n

Syst\u00e9m televizoru se skl\u00e1d\u00e1 z mnoha z\u00e1kladn\u00edch \u010d\u00e1st\u00ed, kter\u00e9 spolupracuj\u00ed p\u0159i zobrazov\u00e1n\u00ed obrazu a zvuku. Prvn\u00ed sou\u010d\u00e1st\u00ed obrazov\u00e9ho sign\u00e1lu je jeho zdroj, kter\u00fdm m\u016f\u017ee b\u00fdt streamovac\u00ed za\u0159\u00edzen\u00ed, DVD p\u0159ehr\u00e1va\u010d, kabelov\u00fd nebo satelitn\u00ed box nebo oboj\u00ed. Prost\u0159ednictv\u00edm kabelu p\u0159en\u00e1\u0161\u00ed tento zdroj videosign\u00e1l do televizoru. <\/p>\n

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Tuner televizoru pak p\u0159ij\u00edm\u00e1 videosign\u00e1l, dek\u00f3duje jej a odd\u011bluje jeho zvukovou a obrazovou slo\u017eku. Zat\u00edmco video sign\u00e1l je veden do zobrazovac\u00ed slo\u017eky televizoru, audio sign\u00e1l je pos\u00edl\u00e1n do reproduktor\u016f televizoru nebo extern\u00edho audio syst\u00e9mu. <\/p>\n

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Jako zobrazovac\u00ed prvek televizoru obvykle slou\u017e\u00ed panel LCD (displej z tekut\u00fdch krystal\u016f) nebo OLED (organick\u00e1 sv\u011bteln\u00e1 dioda). Podsv\u00edcen\u00ed panel\u016f LCD zaji\u0161\u0165uje podsv\u00edcen\u00ed um\u00edst\u011bn\u00e9 za panelem. Obrazovky OLED nevy\u017eaduj\u00ed podsv\u00edcen\u00ed, proto\u017ee ka\u017ed\u00fd pixel vyza\u0159uje vlastn\u00ed sv\u011btlo. <\/p>\n

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Videoprocesor televizoru n\u00e1sledn\u011b zpracov\u00e1v\u00e1 videosign\u00e1l a zlep\u0161uje kvalitu obrazu t\u00edm, \u017ee m\u011bn\u00ed nap\u0159\u00edklad jas, kontrast a barvy. Jedn\u00edm z \u00fakol\u016f, kter\u00e9 tento procesor zvl\u00e1dne, je zv\u00fd\u0161en\u00ed rozli\u0161en\u00ed obsahu ni\u017e\u0161\u00ed kvality na nativn\u00ed rozli\u0161en\u00ed televizoru. <\/p>\n

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Posledn\u00edm krokem p\u0159i vytv\u00e1\u0159en\u00ed obrazu, kter\u00fd vid\u00edme, je zobrazen\u00ed zpracovan\u00e9ho videosign\u00e1lu na obrazovce. Iluze pohybu vznik\u00e1, kdy\u017e televizor na z\u00e1klad\u011b videoproudu rychle m\u011bn\u00ed stav jednotliv\u00fdch pixel\u016f na obrazovce. <\/p>\n

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Za \u00fa\u010delem zprost\u0159edkov\u00e1n\u00ed audiovizu\u00e1ln\u00edho obsahu div\u00e1k\u016fm zahrnuje syst\u00e9m televizoru \u010d\u00e1sti zahrnuj\u00edc\u00ed zdroj videa, tuner, zvukov\u00fd syst\u00e9m, zobrazovac\u00ed panel, videoprocesor a reproduktory.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Jak p\u0159en\u00e9st obraz z telefonu do TV? Nejrychlej\u0161\u00ed cestou je spu\u0161t\u011bn\u00ed funkce Smart View z oznamovac\u00ed li\u0161ty Va\u0161eho telefonu. Po spu\u0161t\u011bn\u00ed budou vyhled\u00e1ny televize, kter\u00e9 se nach\u00e1zej\u00ed na stejn\u00e9 WiFi s\u00edti jako V\u00e1\u0161 telefon. Sta\u010d\u00ed vybrat televizor ke kter\u00e9mu se chcete p\u0159ipojit, spojen\u00ed prob\u011bhne automaticky. Spust\u00ed se re\u017eim sd\u00edlen\u00ed obrazovky. Dal\u0161\u00ed informace najdete na www.samsung.com … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":3082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[225],"tags":[],"class_list":["post-9975","post","type-post","status-publish","format-standard","hentry","category-electronics"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/9975","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\/3082"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=9975"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/9975\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=9975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=9975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=9975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}