M\u1ed9t c\u00e1i tivi ch\u1ec9 c\u00f3 m\u1ed9t m\u00e0n h\u00ecnh, n\u00f3i chung ch\u1ec9 c\u00f3 th\u1ec3 thu xem ti\u1ebft m\u1ee5c c\u1ee7a m\u1ed9t k\u00eanh. Song c\u00f3 m\u1ed9t lo\u1ea1i tivi c\u00f3 ch\u1ee9c n\u0103ng ph\u00e2n chia m\u00e0n h\u00ecnh, c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi v\u1edbi vi\u1ec7c thu xem b\u00ecnh th\u01b0\u1eddng ti\u1ebft m\u1ee5c c\u1ee7a m\u1ed9t k\u00eanh n\u00e0o \u0111\u00f3, tr\u00ean m\u00e0n h\u00ecnh m\u1edf ra h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf, thu xem ti\u1ebft m\u1ee5c c\u1ee7a m\u1ed9t k\u00eanh kh\u00e1c.<\/p>\n\n\n\n
Tivi th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng ph\u00e2n chia m\u00e0n h\u00ecnh nh\u01b0 th\u1ebf n\u00e0o? Ho\u00e1 ra l\u00e0 lo\u1ea1i tivi \u0111\u00f3 c\u00f3 hai h\u1ec7 th\u1ed1ng thu t\u00edn hi\u1ec7u ri\u00eang r\u1ebd. H\u1ec7 th\u1ed1ng thu t\u00edn hi\u1ec7u c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c v\u1edbi tivi n\u00f3i chung. C\u00f2n h\u1ec7 th\u1ed1ng thu t\u00edn hi\u1ec7u c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf, ngo\u00e0i vi\u1ec7c c\u00f3 th\u1ec3 thu t\u00edn hi\u1ec7u, ti\u1ebfn h\u00e0nh khu\u1ebfch \u0111\u1ea1i, gi\u1ea3i m\u00e3 v.v. ra, c\u00f2n c\u00f3 th\u00eam m\u1ed9t b\u1ed9 ph\u1eadn l\u01b0u gi\u1eef so v\u1edbi h\u1ec7 th\u1ed1ng thu th\u00f4ng th\u01b0\u1eddng. T\u00edn hi\u1ec7u sau khi \u0111\u01b0\u1ee3c hai h\u1ec7 th\u1ed1ng thu \u0111\u00f3 thu v\u00e0o v\u00e0 x\u1eed l\u00ed, th\u00f4ng qua c\u00f9ng m\u1ed9t h\u1ec7 th\u1ed1ng qu\u00e9t v\u00e0 hi\u1ec7n l\u00ean m\u00e0n h\u00ecnh. Mu\u1ed1n cho c\u1ea3 hai h\u00ecnh t\u01b0\u1ee3ng l\u1edbn nh\u1ecf hi\u1ec7n ra \u0111\u1ed3ng th\u1eddi tr\u00ean m\u00e0n h\u00ecnh, nh\u1ea5t thi\u1ebft ph\u1ea3i l\u00e0m cho th\u1eddi gian qu\u00e9t c\u1ee7a ch\u00fang ho\u00e0n to\u00e0n th\u1ed1ng nh\u1ea5t. Tuy nhi\u00ean, h\u1ec7 th\u1ed1ng qu\u00e9t c\u1ee7a tivi th\u1ed1ng nh\u1ea5t v\u1edbi s\u1ef1 hi\u1ec7n h\u00ecnh c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn. H\u1ec7 th\u1ed1ng thu c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf c\u1ea7n ph\u1ea3i c\u1ea5t gi\u1eef t\u00edn hi\u1ec7u sau khi \u0111\u01b0\u1ee3c thu v\u00e0 x\u1eed l\u00ed v\u00e0o m\u1ed9t n\u01a1i tr\u01b0\u1edbc \u0111\u00e3, \u0111\u1ebfn khi c\u1ea7n hi\u1ec7n l\u00ean th\u00ec l\u1ea5y ra. \u0110\u00f3 ch\u00ednh l\u00e0 nguy\u00ean nh\u00e2n v\u00ec sao h\u1ec7 th\u1ed1ng thu t\u00edn hi\u1ec7u c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf ph\u1ea3i c\u00f3 th\u00eam m\u1ed9t b\u1ed9 ph\u1eadn l\u01b0u gi\u1eef.<\/p>\n\n\n\n
B\u1ed9 ph\u1eadn l\u01b0u gi\u1eef c\u1ee7a h\u1ec7 th\u1ed1ng thu t\u00edn hi\u1ec7u h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf do v\u00e0i t\u1ea5m m\u1ea1ch t\u00edch h\u1ee3p c\u1ee1 l\u1edbn h\u1ee3p th\u00e0nh. N\u00f3 r\u1ea5t gi\u1ed1ng m\u1ed9t c\u00e1i kho l\u1edbn c\u00f3 nhi\u1ec1u b\u00e3i \u0111\u1ec3 h\u00e0ng. Khi c\u1ea7n hi\u1ec7n ra hai h\u00ecnh t\u01b0\u1ee3ng l\u1edbn nh\u1ecf tr\u00ean c\u00f9ng m\u1ed9t m\u00e0n h\u00ecnh, n\u1ed9i dung c\u1ee7a m\u1ed9t v\u1ecb tr\u00ed n\u00e0o \u0111\u00f3 c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn s\u1ebd \u0111\u01b0\u1ee3c xo\u00e1 \u0111i, nh\u01b0 ki\u1ec3u m\u1edf ra c\u00e1i c\u1eeda s\u1ed5 tr\u00ean m\u00e1i nh\u00e0. Tivi l\u1ea5y ra t\u00edn hi\u1ec7u t\u1eeb trong b\u1ed9 ph\u1eadn l\u01b0u gi\u1eef, b\u1ed5 sung v\u00e0o ch\u1ed7 \u0111\u1ec3 tr\u1ed1ng. Nh\u01b0 v\u1eady l\u00e0 c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi tr\u00ean c\u00f9ng m\u1ed9t m\u00e0n h\u00ecnh hi\u1ec7n ra hai h\u00ecnh t\u01b0\u1ee3ng l\u1edbn nh\u1ecf. Qu\u00e1 tr\u00ecnh hi\u1ec7n ra b\u1ed5 sung n\u00e0y r\u1ea5t gi\u1ed1ng v\u1edbi b\u00e0i t\u1eadp \u0111i\u1ec1n b\u1ed5 sung m\u00e0 ch\u00fang ta l\u00e0m th\u01b0\u1eddng ng\u00e0y. C\u1ea3 qu\u00e1 tr\u00ecnh do m\u1ed9t m\u1ea1ch \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n chuy\u00ean d\u00f9ng \u0111i\u1ec1u h\u00e0nh. \u0110\u1ed9ng t\u00e1c \u0111\u01b0a v\u00e0o c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf v\u00e0 s\u1ef1 qu\u00e9t c\u1ee7a ch\u00f9m electron c\u00f3 s\u1ef1 \u0111\u1ed1i \u1ee9ng th\u1eddi gian r\u1ea5t nghi\u00eam ng\u1eb7t. Khi ch\u00f9m electron qu\u00e9t \u0111\u1ebfn v\u1ecb tr\u00ed c\u1ee7a m\u1ed9t h\u00e0ng t\u01b0\u01a1ng \u1ee9ng n\u00e0o \u0111\u00f3, li\u1ec1n c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng r\u00fat ra t\u00edn hi\u1ec7u h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf t\u1eeb trong b\u1ed9 ph\u1eadn l\u01b0u gi\u1eef, ph\u1ee5c h\u1ed3i th\u00e0nh t\u00edn hi\u1ec7u h\u00ecnh \u1ea3nh, n\u1ed1i v\u00e0o v\u1ecb tr\u00ed t\u01b0\u01a1ng \u1ee9ng, c\u00f2n \u1edf c\u00e1c v\u1ecb tr\u00ed kh\u00e1c v\u1eabn n\u1ed1i v\u1edbi t\u00edn hi\u1ec7u c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn. Nh\u01b0 v\u1eady, tr\u00ean c\u00f9ng m\u1ed9t m\u00e0n h\u00ecnh, ti\u1ebft m\u1ee5c c\u1ee7a hai k\u00eanh c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi hi\u1ec7n ra. Do t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n h\u1ea7u nh\u01b0 l\u00e0 \u0111\u1ed3ng th\u1eddi sinh ra, sai bi\u1ec7t tr\u01b0\u1edbc sau ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n tri\u1ec7u gi\u00e2y \u0111\u1ed3ng h\u1ed3, v\u00ec v\u1eady th\u1ecb gi\u00e1c c\u1ee7a ch\u00fang ta kh\u00f4ng sao c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
Khi thu xem, \u00e2m thanh k\u00e8m c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn do loa ph\u00e1t ra, \u00e2m thanh k\u00e8m c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng nh\u1ecf c\u00f3 th\u1ec3 d\u00f9ng \u1ed1ng nghe \u0111\u1ec3 thu nghe. Khi c\u1ea7n thi\u1ebft, ti\u1ebft m\u1ee5c c\u1ee7a h\u00ecnh t\u01b0\u1ee3ng l\u1edbn nh\u1ecf c\u00f2n c\u00f3 th\u1ec3 \u0111\u1ed5i cho nhau. Lo\u1ea1i tivi c\u00f3 ch\u1ee9c n\u0103ng ph\u00e2n chia m\u00e0n h\u00ecnh n\u00e0y ch\u1eb3ng nh\u1eefng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng gi\u1ea3i tr\u00ed cho \u0111\u1eddi s\u1ed1ng con ng\u01b0\u1eddi, m\u00e0 \u1edf c\u00e1c m\u1eb7t gi\u00e1o d\u1ee5c, nghi\u00ean c\u1ee9u khoa h\u1ecdc, c\u00f4ng nghi\u1ec7p, giao th\u00f4ng v\u1eadn t\u1ea3i, y t\u1ebf v.v. c\u0169ng c\u00f3 \u0111\u01b0\u1ee3c ti\u1ec1n \u0111\u1ed3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a : Tivi; Ph\u00e2n chia m\u00e0n h\u00ecnh.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
M\u1ed9t c\u00e1i tivi ch\u1ec9 c\u00f3 m\u1ed9t m\u00e0n h\u00ecnh, n\u00f3i chung ch\u1ec9 c\u00f3 th\u1ec3 thu xem ti\u1ebft m\u1ee5c c\u1ee7a m\u1ed9t k\u00eanh. Song c\u00f3 m\u1ed9t lo\u1ea1i tivi c\u00f3 ch\u1ee9c n\u0103ng ph\u00e2n chia m\u00e0n h\u00ecnh, c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi v\u1edbi vi\u1ec7c thu xem b\u00ecnh th\u01b0\u1eddng ti\u1ebft m\u1ee5c c\u1ee7a m\u1ed9t k\u00eanh n\u00e0o \u0111\u00f3, tr\u00ean m\u00e0n h\u00ecnh m\u1edf ra h\u00ecnh […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,7],"tags":[],"class_list":["post-5942","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=5942"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5942\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}