Technol\u00f3gia Quantum Dot bola prv\u00fdkr\u00e1t predstaven\u00e1 na v\u00fdstave CES 2015. Pod\u013ea spolo\u010dnosti Samsung bola vyvinut\u00e1 s cie\u013eom zlep\u0161i\u0165 kvalitu obrazu telev\u00edznych obrazoviek a v praxi rob\u00ed presne to. Technol\u00f3gia Quantum Dot zlep\u0161uje kvalitu obrazu pomocou pokro\u010dil\u00fdch materi\u00e1lov s vysokou selekt\u00edvnou \u0161\u00edrkou p\u00e1sma a n\u00edzkym \u00fatlmom svetla, \u010do prin\u00e1\u0161a presnej\u0161ie farby a vy\u0161\u0161\u00ed jas. Spo\u010diatku bola technol\u00f3gia Quantum Dot dostupn\u00e1 iba v pr\u00e9miov\u00fdch telev\u00edzoroch, no nesk\u00f4r sa roz\u0161\u00edrila aj do strednej triedy, zatia\u013e \u010do OLED telev\u00edzory obsadili segment vy\u0161\u0161ej triedy.<\/p>\n\n\n\n
Predov\u0161etk\u00fdm je d\u00f4le\u017eit\u00e9 pochopi\u0165, \u017ee QLED a technol\u00f3gia kvantov\u00fdch bodiek s\u00fa v podstate to ist\u00e9. Obraz sa vytv\u00e1ra presne rovnak\u00fdm sp\u00f4sobom ako pri tradi\u010dn\u00fdch LCD\/LED displejoch \u2014 telev\u00edzory QLED s\u00fa jednoducho vylep\u0161enou verziou LED telev\u00edzorov.<\/p>\n\n\n\n
V\u0161etci pozn\u00e1me farebn\u00fd model RGB, ktor\u00fd sa sklad\u00e1 z \u010dervenej, zelenej a modrej farby. Kombin\u00e1ciou t\u00fdchto troch z\u00e1kladn\u00fdch farieb v r\u00f4znych pomeroch je mo\u017en\u00e9 reprodukova\u0165 prakticky ak\u00fako\u013evek farbu.<\/p>\n\n\n\n
Existuje nieko\u013eko typov QLED displejov v z\u00e1vislosti od technol\u00f3gie pou\u017e\u00edvanej v\u00fdrobcom. Pri drah\u0161\u00edch displejoch samotn\u00e9 pixely obsahuj\u00fa materi\u00e1ly s kvantov\u00fdmi bodkami, zatia\u013e \u010do pri dostupnej\u0161\u00edch modeloch sa pou\u017e\u00edva dodato\u010dn\u00e1 vrstva kvantov\u00fdch bodiek umiestnen\u00e1 vo vn\u00fatri displeja. Preto s\u00fa telev\u00edzory QLED dostupn\u00e9 v \u0161irokom cenovom rozp\u00e4t\u00ed \u2014 od cenovo dostupn\u00fdch modelov a\u017e po pr\u00e9miov\u00e9 vlajkov\u00e9 telev\u00edzory.<\/p>\n\n\n\n
Samotn\u00fd obraz sa st\u00e1le vytv\u00e1ra pomocou \u0161tandardnej LCD technol\u00f3gie. Po priveden\u00ed ur\u010dit\u00e9ho nap\u00e4tia pixely zmenia svoj stav a prepustia kontrolovan\u00e9 mno\u017estvo svetla. V\u010faka vysokej farebnej selektivite a n\u00edzkemu \u00fatlmu svetla, ktor\u00e9 poskytuj\u00fa materi\u00e1ly s kvantov\u00fdmi bodkami, je v\u00fdsledn\u00fd obraz jasnej\u0161\u00ed, \u017eiv\u0161\u00ed a pon\u00faka lep\u0161\u00ed kontrast v porovnan\u00ed s be\u017en\u00fdmi LED displejmi.<\/p>\n\n\n\n
V skuto\u010dnosti LED telev\u00edzory vr\u00e1tane modelov QLED nie s\u00fa n\u00e1chyln\u00e9 na vypa\u013eovanie obrazu. Na rozdiel od OLED displejov ich pixely nevy\u017earuj\u00fa vlastn\u00e9 svetlo \u2014 iba reguluj\u00fa mno\u017estvo svetla prech\u00e1dzaj\u00faceho cez LCD panel. V d\u00f4sledku toho v samotnom displeji nie je ni\u010d, \u010do by sa mohlo trvalo vyp\u00e1li\u0165.<\/p>\n\n\n\n
Ke\u010f sa telev\u00edzory QLED prv\u00fdkr\u00e1t objavili na trhu, v\u00fdrobcovia t\u00fato skuto\u010dnos\u0165 vyu\u017e\u00edvali ako marketingov\u00fa v\u00fdhodu. Napr\u00edklad spolo\u010dnos\u0165 Samsung propagovala svoje telev\u00edzory QLED s 10-ro\u010dnou z\u00e1rukou proti vypa\u013eovaniu obrazovky. V praxi v\u0161ak tak\u00e9to poruchy nikdy nepredstavovali skuto\u010dn\u00fd probl\u00e9m, preto\u017ee LCD displeje s\u00fa prirodzene odoln\u00e9 vo\u010di vypa\u013eovaniu. Ove\u013ea pravdepodobnej\u0161\u00edm probl\u00e9mom v priebehu \u010dasu je porucha LED podsvietenia, \u010do je \u00faplne in\u00fd typ hardv\u00e9rovej poruchy a nem\u00e1 ni\u010d spolo\u010dn\u00e9 s vypa\u013eovan\u00edm.<\/p>\n\n\n\n
Ako spotrebitelia lep\u0161ie pochopili fungovanie technol\u00f3gie QLED a telev\u00edzory QLED sa stali masov\u00fdm produktom, tieto marketingov\u00e9 kampane postupne zmizli. T\u00e1to zmena prebehla nen\u00e1padne a v\u00e4\u010d\u0161ina kupuj\u00facich si ju takmer nev\u0161imla.<\/p>\n\n\n\n
Typick\u00e1 \u017eivotnos\u0165 telev\u00edzora Samsung QLED je pribli\u017ene 7 a\u017e 10 rokov. Vo v\u00e4\u010d\u0161ine pr\u00edpadov sa telev\u00edzory pokazia v d\u00f4sledku r\u00f4znych hardv\u00e9rov\u00fdch probl\u00e9mov, ktor\u00e9 nes\u00favisia priamo so samotn\u00fdm panelom. Jedn\u00fdm z naj\u010dastej\u0161\u00edch probl\u00e9mov je porucha LED podsvietenia, hoci pravdepodobnos\u0165 jej v\u00fdskytu do ve\u013ekej miery z\u00e1vis\u00ed od celkovej kvality vyhotovenia panela. Postupom \u010dasu sa m\u00f4\u017eu objavi\u0165 aj chyby pixelov, takzvan\u00e9 \u201em\u0155tve pixely\u201c, ktor\u00e9 \u00faplne prestan\u00fa fungova\u0165 alebo zostan\u00fa v pevnom stave a prestan\u00fa reagova\u0165 na elektrick\u00e9 sign\u00e1ly.<\/p>\n\n\n\n
Poruchy displeja s\u00fa v\u0161ak zriedkavo hlavn\u00fdm d\u00f4vodom v\u00fdmeny telev\u00edzora. \u010castej\u0161ie sa star\u0161ie modely st\u00e1vaj\u00fa zastaran\u00fdmi, preto\u017ee u\u017e nedost\u00e1vaj\u00fa aktualiz\u00e1cie opera\u010dn\u00e9ho syst\u00e9mu. Po ukon\u010den\u00ed softv\u00e9rovej podpory m\u00f4\u017eu niektor\u00e9 streamovacie slu\u017eby a aplik\u00e1cie presta\u0165 fungova\u0165 alebo strati\u0165 kompatibilitu, \u010do pou\u017e\u00edvate\u013eov vedie ku k\u00fape nov\u00e9ho telev\u00edzora, aj ke\u010f samotn\u00fd displej st\u00e1le funguje spr\u00e1vne.<\/p>\n","protected":false},"excerpt":{"rendered":"
Technol\u00f3gia Quantum Dot bola prv\u00fdkr\u00e1t predstaven\u00e1 na v\u00fdstave CES 2015. Pod\u013ea spolo\u010dnosti Samsung bola vyvinut\u00e1 s cie\u013eom zlep\u0161i\u0165 kvalitu obrazu telev\u00edznych obrazoviek a v praxi rob\u00ed presne to. Technol\u00f3gia Quantum Dot zlep\u0161uje kvalitu obrazu pomocou pokro\u010dil\u00fdch materi\u00e1lov s vysokou selekt\u00edvnou \u0161\u00edrkou p\u00e1sma a n\u00edzkym \u00fatlmom svetla, \u010do prin\u00e1\u0161a presnej\u0161ie farby a vy\u0161\u0161\u00ed jas. Spo\u010diatku bola […]<\/p>\n","protected":false},"author":1,"featured_media":12951,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[26],"tags":[79,87,21],"class_list":["post-12950","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tv","tag-samsung-tv","tag-technologia","tag-tv"],"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/comments?post=12950"}],"version-history":[{"count":1,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12950\/revisions"}],"predecessor-version":[{"id":12952,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12950\/revisions\/12952"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/12951"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=12950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=12950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=12950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}