{"id":168,"date":"2014-06-27T09:28:55","date_gmt":"2014-06-27T13:28:55","guid":{"rendered":"http:\/\/drcngo.com\/V1\/?p=168"},"modified":"2014-06-29T16:50:42","modified_gmt":"2014-06-29T20:50:42","slug":"cach-phong-chong-moi-met-mat-khi-xu-dung-vi-tinh","status":"publish","type":"post","link":"http:\/\/drcngo.com\/V1\/2014\/06\/27\/cach-phong-chong-moi-met-mat-khi-xu-dung-vi-tinh\/","title":{"rendered":"C\u00e1ch Ph\u00f2ng Ch\u1ed1ng M\u1ecfi M\u1ec7t M\u1eaft Khi X\u1eed D\u1ee5ng Vi T\u00ednh"},"content":{"rendered":"<p>      <strong>T\u00e1c gi\u1ea3: B\u00e1c S\u0129 Nh\u00e3n Khoa Ch\u00e1nh Ng\u00f4<\/strong> <strong><\/p>\n<p><strong> L\u1eddi gi\u1edbi thi\u1ec7u c\u1ee7a ng\u01b0\u1eddi c\u1ea7m b\u00fat:<\/strong> <em>Trong x\u00e3 h\u1ed9i c\u00f4ng ngh\u1ec7 th\u00f4ng tin hi\u1ec7n \u0111\u1ea1i c\u1ee7a th\u1ebf k\u1ef7 21, vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh l\u00e0 m\u1ed9t nhu c\u1ea7u r\u1ea5t c\u1ea7n thi\u1ebft cho m\u1ecdi gi\u1edbi, m\u1ecdi l\u1ee9a tu\u1ed5i v\u00e0 m\u1ecdi tr\u00ecnh \u0111\u1ed9 kh\u00e1c nhau. Vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh c\u00f3 \u1ea3nh h\u01b0\u1edfng kh\u00f4ng nh\u1ecf \u0111\u1ebfn th\u1ecb gi\u00e1c v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c c\u1ee7a c\u01a1 th\u1ec3 nh\u01b0 c\u1ed5, tay, vai v\u00e2n v\u00e2n. \u0110\u00e2y l\u00e0 m\u1ed9t vi\u1ec7c tuy r\u1ea5t nh\u1ecf v\u00e0 r\u1ea5t t\u1ea7m th\u01b0\u1eddng nh\u01b0ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a qu\u00fd v\u1ecb v\u1ec1 l\u00e2u v\u1ec1 d\u00e0i. Trong b\u00e0i vi\u1ebft n\u00e0y, ng\u01b0\u1eddi c\u1ea7m b\u00fat xin c\u1ed1ng hi\u1ebfn v\u00e0 chia s\u1ebd nh\u1eefng hi\u1ec3u bi\u1ebft c\u1ee7a m\u00ecnh v\u1ec1 th\u1ecb gi\u00e1c khi x\u1eed d\u1ee5ng vi t\u00ednh, nh\u1eb1m gi\u00fap qu\u00fd v\u1ecb c\u00f3 nh\u1eefng c\u1ea3m gi\u00e1c tho\u1ea3i m\u00e1i v\u00e0 d\u1ec5 ch\u1ecbu khi x\u1eed d\u1ee5ng vi t\u00ednh. \u00a0<\/em><\/p>\n<p> 1) Kho\u1ea3ng c\u00e1ch gi\u1eefa m\u1eaft v\u00e0 m\u00e0n h\u00ecnh vi t\u00ednh: Kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p nh\u1ea5t gi\u1eefa m\u1eaft v\u00e0 m\u00e0n h\u00ecnh l\u00e0 t\u1eeb 40 \u0111\u1ebfn 60 centimet. G\u1ea7n h\u01a1n kho\u1ea3ng c\u00e1ch n\u00e0y th\u00ec kh\u00f4ng t\u1ed1t, nh\u01b0ng xa c\u00e0ng xa h\u01a1n kho\u1ea3ng c\u00e1ch n\u00e0y c\u0169ng c\u00e0ng t\u1ed1t. T\u1ea1i sao? V\u00ec m\u1ed5i m\u1ed9t m\u00e0n h\u00ecnh vi t\u00ednh d\u00f9 l\u00e0 m\u00e0n h\u00ecnh th\u01b0\u1eddng hay m\u00e0n h\u00ecnh tinh th\u1ec3 l\u1ecfng LCD v\u1eabn ph\u00e1t ra \u0111i\u1ec7n t\u1eeb (electromagnetic emission).\u00a0\u00a0 M\u1eb7c d\u00f9 c\u00f2n nhi\u1ec1u tranh c\u1ea3i v\u1ec1 t\u00e1c h\u1ea1i c\u1ee7a d\u00f2ng \u0111i\u1ec7n t\u1eeb ph\u00e1t ra t\u1eeb m\u00e0n h\u00ecnh l\u00ean m\u1eaft c\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 ta n\u00ean b\u1ea3o v\u1ec7 n\u00f3 th\u00ec t\u1ed1t h\u01a1n. \u00a0 <\/p>\n<p>2) \u0110\u1ed9 s\u00e1ng c\u1ee7a m\u00e0n h\u00ecnh: N\u00ean \u0111i\u1ec1u ch\u1ec9nh cho \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u00e0n h\u00ecnh th\u1eadt v\u1eeba ph\u1ea3i, \u0111\u1eebng qu\u00e1 s\u00e1ng v\u00ec n\u1ebfu nh\u00ecn ch\u0103m ch\u00fa v\u00e0o m\u00e0n h\u00ecnh qu\u00e1 s\u00e1ng s\u1ebd l\u00e0m cho m\u1eaft mau m\u1ecfi m\u1ec7t. C\u00f3 nhi\u1ec1u ng\u01b0\u1eddi v\u00ec nh\u00ecn qu\u00e1 ch\u0103m ch\u00fa v\u00e0o m\u00e0n h\u00ecnh th\u1eadt s\u00e1ng n\u00ean th\u01b0\u1eddng hay b\u1ecb nh\u1ee9c \u0111\u1ea7u n\u00ean c\u00f3 l\u1ebd c\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 ch\u00fang ta \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u00e0n h\u00ecnh m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p. <\/p>\n<p>\u00a03) \u0110i\u1ec1u ch\u1ec9nh t\u1ea7m nh\u00ecn c\u1ee7a m\u1eaft: B\u1ea1n kh\u00f4ng n\u00ean gi\u00e1n m\u1eaft ch\u0103m ch\u00fa v\u00e0o m\u00e0n h\u00ecnh. Th\u1ec9nh tho\u1ea3ng kho\u1ea3ng m\u01b0\u1eddi ph\u00fat h\u00e3y ng\u01b0\u1edbc m\u1eaft nh\u00ecn \u0111\u1ebfn c\u00e1c v\u1eadt \u1edf xa nh\u01b0 nh\u00ecn qua c\u1eeda s\u1ed5 hay nh\u00ecn l\u00ean \u0111\u1ed3ng h\u1ed3 treo t\u01b0\u1eddng ch\u1eb3ng h\u1ea1n.\u00a0\u00a0 Thay \u0111\u1ed5i t\u1ea7m nh\u00ecn v\u00e0 c\u1ef1 ly c\u1ee7a s\u1ebd gi\u00fap c\u01a1 th\u1ec3 mi trong m\u1eaft \u0111i\u1ec1u ti\u1ebft \u0111\u1ec3 v\u00e0 ngh\u1ec9 ng\u01a1i nh\u1eb1m t\u1ea1o tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng v\u00e0 tr\u00e1nh m\u1ecfi m\u1ec7t m\u1ed9t c\u00e1ch qu\u00e1 s\u1ee9c. \u00a0<\/p>\n<p>4) N\u00ean ch\u1edbp m\u1eaft m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean: Khi ch\u00fang ta l\u00e0m vi\u1ec7c v\u1edbi m\u00e0n h\u00ecnh vi t\u00ednh v\u00ec qu\u00e1 ch\u0103m ch\u00fa n\u00ean ch\u00fang ta \u00edt khi ch\u1edbp m\u1eaft. \u0110\u00e2y l\u00e0 m\u1ed9t th\u00f3i quen r\u1ea5t x\u1ea5u v\u00e0 \u1ea3nh h\u01b0\u1edfng r\u1ea5t x\u1ea5u l\u00ean s\u1ee9c kh\u1ecfe c\u1ee7a m\u1eaft, \u0111\u1eb7c bi\u1ec7t l\u00e0 qu\u00fd v\u1ecb c\u00f3 ch\u1ee9ng b\u1ec7nh kh\u00f4 m\u1eaft m\u00e0 ch\u00fang t\u00f4i \u0111\u00e3 \u0111\u1ec1 c\u1eadp trong b\u00e0i vi\u1ebft tr\u01b0\u1edbc.\u00a0\u00a0 Th\u00f4ng th\u01b0\u1eddng th\u00ec n\u01b0\u1edbc m\u1eaft \u1edf tr\u01b0\u1edbc m\u1eaft ta ch\u1ec9 trong kho\u1ea3ng 10 gi\u00e2y \u0111\u1ed3ng h\u1ed3 tr\u01b0\u1edbc khi n\u00f3 b\u1ed1c h\u01a1i. V\u00ec v\u1eady ch\u00fang ta n\u00ean ch\u1edbp m\u1eaft m\u1ed7i 6 \u0111\u1ebfn 10 gi\u00e2y \u0111\u1ed3ng h\u1ed3 hay n\u00f3i n\u00f4m na l\u00e0 ch\u00fang ta ph\u1ea3i ch\u1edbp m\u1eaft t\u1eeb 6 \u0111\u1ebfn 10 l\u1ea7n trong m\u1ed7i ph\u00fat \u0111\u1ec3 tr\u00e1nh b\u1ecb kh\u00f4 m\u1eaft. Trong tr\u01b0\u1eddng h\u1ee3p m\u1eaft b\u1ecb kh\u00f4 qu\u00e1, ch\u00fang ta c\u00f3 th\u1ec3 d\u00f9ng n\u01b0\u1edbc m\u1eaft nh\u00e2n t\u1ea1o nh\u1ecf v\u00e0o m\u1eaft \u0111\u1ec3 gi\u00fap cho m\u1eaft \u0111\u01b0\u1ee3c \u1ea9m v\u00e0 tr\u00e1nh b\u1ecb kh\u00f4. \u00a0 <\/p>\n<p>5) \u0110\u1ed9 cao v\u00e0 g\u00f3c nh\u00ecn c\u1ee7a m\u00e0ng h\u00ecnh: B\u1ea1n n\u00ean \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao c\u1ee7a m\u00e0n h\u00ecnh ngang v\u1edbi t\u1ea7m m\u1eaft. Tr\u00e1nh cho m\u00e0n h\u00ecnh qu\u00e1 cao h\u01a1n t\u1ea7m m\u1eaft v\u00ec b\u1ea1n ph\u1ea3i ng\u01b0\u1edbc l\u00ean \u0111\u1ec3 nh\u00ecn v\u00e0o m\u00e0n h\u00ecnh. Ng\u01b0\u1ee3c l\u1ea1i n\u1ebfu m\u00e0n h\u00ecnh qu\u00e1 th\u1ea5p so v\u1edbi t\u1ea7m m\u1eaft th\u00ec b\u1ea1n ph\u1ea3i cu\u1ed1i xu\u1ed1ng \u0111\u1ec3 nh\u00ecn v\u00e0o m\u00e0n h\u00ecnh. Vi\u1ec7c n\u00e0y t\u1ea1o n\u00ean tri\u1ec7u ch\u1ee9ng m\u1ecfi c\u1ed5 v\u00e0 \u0111au vai \u1edf m\u1ed9t s\u1ed1 ng\u01b0\u1eddi xin xem gi\u1ea3i th\u00edch \u1edf b\u00ean d\u01b0\u1edbi. M\u1ed9t \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng n\u1eefa m\u00e0 ch\u00fang ta ph\u1ea3i \u0111\u1ec1 c\u1eadp \u1edf \u0111\u00e2y l\u00e0 g\u00f3c nh\u00ecn l\u00ean m\u00e0n h\u00ecnh. N\u00ean \u0111\u1ec3 m\u00e0n h\u00ecnh th\u1eb3ng tr\u1ef1c di\u1ec7n tr\u01b0\u1edbc m\u1eaft ch\u00fang ta, tr\u00e1nh nh\u00ecn m\u00e0n h\u00ecnh \u1edf m\u1ed9t g\u00f3c l\u1ec7ch v\u00ec nh\u01b0 v\u1eady s\u1ebd l\u00e0m m\u1ecfi m\u1ec7t c\u00e1c c\u01a1 trong m\u1eaft ch\u00fang ta. \u00a0 <\/p>\n<p>6) K\u00ednh \u0111a tr\u00f2ng v\u00e0 vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh: K\u00ednh \u0111a tr\u00f2ng \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi \u0111\u1ed9 nh\u00ecn xa v\u00e0 \u0111\u1ed9 \u0111\u1ecdc s\u00e1ch nh\u00ecn g\u1ea7n, n\u00ean \u0111\u00f4i khi n\u00f3 kh\u00f4ng th\u1ef1c s\u1ef1 ph\u00f9 h\u1ee3p cho vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh. T\u00f9y theo c\u1ef1 ly v\u00e0 \u0111\u1ed9 cao c\u1ee7a m\u00e0n h\u00ecnh vi t\u00ednh, \u0111\u00f4i khi ng\u01b0\u1eddi \u0111eo k\u00ednh ph\u1ea3i ng\u01b0\u1edbc l\u00ean hay cu\u1ed1i xu\u1ed1ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1eaft m\u00ecnh v\u00e0o v\u00f9ng th\u1ecb gi\u00e1c c\u1ee7a k\u00ednh \u0111\u1ec3 th\u1ea5y. Vi\u1ec7c n\u00e0y t\u1ea1o n\u00ean s\u1ef1 m\u1ecfi c\u1ed5 v\u00e0 \u0111au vai \u1edf m\u1ed9t s\u1ed1 ng\u01b0\u1eddi \u0111eo k\u00ednh \u0111a tr\u00f2ng khi x\u1eed d\u1ee5ng vi t\u00ednh. V\u1eady c\u00f3 th\u1ec3 c\u00e1ch gi\u1ea3i quy\u1ebft ph\u00f9 h\u1ee3p nh\u1ea5t trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 m\u1ed9t k\u00ednh \u0111\u01a1n tr\u00f2ng cho c\u1ef1 ly \u0111\u1eb7c bi\u1ec7t gi\u1eefa m\u1eaft b\u1ea1n v\u00e0 m\u00e0n h\u00ecnh vi t\u00ednh. \u00a0 <\/p>\n<p>7) D\u00f9ng ch\u1ee9c n\u0103ng ph\u00f3ng \u0111\u1ea1i c\u1ee7a m\u00e0n h\u00ecnh: C\u00f3 r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi \u0111\u1eb7c c\u00e2u h\u1ecfi: d\u00f9ng ch\u1ee9c n\u0103ng ph\u00f3ng \u0111\u1ea1i c\u1ee7a m\u00e0n h\u00ecnh c\u00f3 l\u00e0m h\u1ea1i m\u1eaft kh\u00f4ng?\u00a0\u00a0 Th\u1ef1c s\u1ef1 kh\u00f4ng c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi ch\u00ednh x\u00e1c n\u00e0o trong s\u00e1ch v\u1edf. Nh\u01b0ng theo nh\u1eadn x\u00e9t v\u00e0 hi\u1ec3u bi\u1ebft c\u1ee7a ng\u01b0\u1eddi c\u1ea7m b\u00fat th\u00ec c\u00f3 l\u1ebd kh\u00f4ng c\u00f3 t\u00e1c h\u1ea1i g\u00ec \u0111\u00e2u. Thay v\u00ec ph\u1ea3i nh\u00ecn nh\u1eefng ch\u1eed nh\u1ecf li ti tr\u00ean m\u00e0n h\u00ecnh t\u1ea1i sao ch\u00fang ta kh\u00f4ng ph\u00f3ng \u0111\u1ea1i n\u00f3 to ra cho d\u1ec5 th\u1ea5y? K\u1ebft lu\u1eadn: Vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh l\u00e0 m\u1ed9t vi\u1ec7c r\u1ea5t c\u1ea7n thi\u1ebft cho m\u1ecdi ng\u01b0\u1eddi trong cu\u1ed9c s\u1ed1ng hi\u1ec7n t\u1ea1i.\u00a0\u00a0 Nh\u1eefng th\u00f3i quen t\u1ed1t v\u00e0 nh\u1eefng hi\u1ec3u bi\u1ebft v\u1ec1 th\u1ecb gi\u00e1c tr\u00ean \u0111\u00e2y s\u1ebd gi\u00fap qu\u00fd v\u1ecb ph\u1ea7n n\u00e0o c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 tho\u1ea3i m\u00e1i d\u1ec5 ch\u1ecbu h\u01a1n khi l\u00e0m vi\u1ec7c h\u00e0ng ng\u00e0y v\u1edbi vi t\u00ednh.<\/p>\n<p> Xin h\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00e1c gi\u1ea3: B\u00e1c S\u0129 Nh\u00e3n Khoa Ch\u00e1nh Ng\u00f4 L\u1eddi gi\u1edbi thi\u1ec7u c\u1ee7a ng\u01b0\u1eddi c\u1ea7m b\u00fat: Trong x\u00e3 h\u1ed9i c\u00f4ng ngh\u1ec7 th\u00f4ng tin hi\u1ec7n \u0111\u1ea1i c\u1ee7a th\u1ebf k\u1ef7 21, vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh l\u00e0 m\u1ed9t nhu c\u1ea7u r\u1ea5t c\u1ea7n thi\u1ebft cho m\u1ecdi gi\u1edbi, m\u1ecdi l\u1ee9a tu\u1ed5i v\u00e0 m\u1ecdi tr\u00ecnh \u0111\u1ed9 kh\u00e1c nhau. Vi\u1ec7c x\u1eed d\u1ee5ng [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-168","post","type-post","status-publish","format-standard","hentry","category-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00e1ch Ph\u00f2ng Ch\u1ed1ng M\u1ecfi M\u1ec7t M\u1eaft Khi X\u1eed D\u1ee5ng Vi T\u00ednh &#8226; Dr. Chanh Ngo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/drcngo.com\/V1\/vi\/2014\/06\/27\/cach-phong-chong-moi-met-mat-khi-xu-dung-vi-tinh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch Ph\u00f2ng Ch\u1ed1ng M\u1ecfi M\u1ec7t M\u1eaft Khi X\u1eed D\u1ee5ng Vi T\u00ednh &#8226; Dr. Chanh Ngo\" \/>\n<meta property=\"og:description\" content=\"T\u00e1c gi\u1ea3: B\u00e1c S\u0129 Nh\u00e3n Khoa Ch\u00e1nh Ng\u00f4 L\u1eddi gi\u1edbi thi\u1ec7u c\u1ee7a ng\u01b0\u1eddi c\u1ea7m b\u00fat: Trong x\u00e3 h\u1ed9i c\u00f4ng ngh\u1ec7 th\u00f4ng tin hi\u1ec7n \u0111\u1ea1i c\u1ee7a th\u1ebf k\u1ef7 21, vi\u1ec7c x\u1eed d\u1ee5ng vi t\u00ednh l\u00e0 m\u1ed9t nhu c\u1ea7u r\u1ea5t c\u1ea7n thi\u1ebft cho m\u1ecdi gi\u1edbi, m\u1ecdi l\u1ee9a tu\u1ed5i v\u00e0 m\u1ecdi tr\u00ecnh \u0111\u1ed9 kh\u00e1c nhau. 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