{"id":45562,"date":"2025-08-30T05:47:39","date_gmt":"2025-08-30T05:47:39","guid":{"rendered":"https:\/\/staging.pageloot.com\/uncategorized\/9-qr-code-design-tips-for-better-scans\/"},"modified":"2026-09-29T06:18:20","modified_gmt":"2026-09-29T06:18:20","slug":"9-qr-code-design-tips-for-better-scans","status":"publish","type":"post","link":"https:\/\/pageloot.com\/vi\/blog\/9-qr-code-design-tips-for-better-scans\/","title":{"rendered":"C\u00e1ch thi\u1ebft k\u1ebf m\u00e3 QR \u0111\u1ec3 qu\u00e9t \u0111\u00e1ng tin c\u1eady"},"content":{"rendered":"<p class=\"wp-block-paragraph\">M\u00e3 QR t\u00f9y ch\u1ec9nh c\u1ee7a b\u1ea1n c\u00f3 g\u1eb7p v\u1ea5n \u0111\u1ec1 khi qu\u00e9t trong th\u1ef1c t\u1ebf kh\u00f4ng? Khi m\u1ed9t m\u00e3 c\u00f3 th\u01b0\u01a1ng hi\u1ec7u kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, n\u00f3 s\u1ebd g\u00e2y kh\u00f3 ch\u1ecbu cho kh\u00e1ch h\u00e0ng v\u00e0 l\u00e0m t\u1ed5n h\u1ea1i \u0111\u1ebfn uy t\u00edn c\u1ee7a b\u1ea1n. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch c\u00e2n b\u1eb1ng th\u01b0\u01a1ng hi\u1ec7u tr\u1ef1c quan v\u1edbi c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi m\u00e3 \u0111\u1ec1u qu\u00e9t \u0111\u00e1ng tin c\u1eady tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a kh\u1ea3 n\u0103ng qu\u00e9t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn m\u00e3 QR kh\u00f4ng qu\u00e9t \u0111\u01b0\u1ee3c l\u00e0 do \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n kh\u00f4ng \u0111\u1ee7 gi\u1eefa m\u1eabu n\u1ec1n tr\u01b0\u1edbc v\u00e0 n\u1ec1n sau. C\u00e1c c\u1ea3m bi\u1ebfn quang h\u1ecdc \u0111\u1ecdc m\u00e3 b\u1eb1ng c\u00e1ch \u0111o s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1ed9 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng. M\u00e0u t\u1ed1i h\u01a1n h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng, trong khi m\u00e0u s\u00e1ng h\u01a1n ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng tr\u1edf l\u1ea1i c\u1ea3m bi\u1ebfn. N\u1ebfu s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa hai m\u00e0u qu\u00e1 nh\u1ecf, ph\u1ea7n m\u1ec1m m\u00e1y \u1ea3nh kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t t\u1eebng m\u00f4-\u0111un d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 m\u00e3 c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3, h\u00e3y duy tr\u00ec \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n \u00edt nh\u1ea5t 55% v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc \u0111\u00e3 thi\u1ebft l\u1eadp <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-color-contrast-best-practices\/\">c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n m\u00e0u s\u1eafc<\/a> b\u1eb1ng c\u00e1ch \u0111\u1eb7t m\u1ee5c ti\u00eau t\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n \u00edt nh\u1ea5t l\u00e0 4,5:1. M\u1eb7c d\u00f9 m\u00e0u \u0111en tr\u00ean n\u1ec1n tr\u1eafng cung c\u1ea5p t\u1ef7 l\u1ec7 t\u1ed1i \u01b0u 21:1, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e0u s\u1eafc th\u01b0\u01a1ng hi\u1ec7u hi\u1ec7u qu\u1ea3 n\u1ebfu b\u1ea1n k\u1ebft h\u1ee3p c\u00e1c m\u00f4-\u0111un n\u1ec1n tr\u01b0\u1edbc t\u1ed1i m\u00e0u v\u1edbi n\u1ec1n s\u00e1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00e1nh \u0111\u1ea3o ng\u01b0\u1ee3c m\u00e0u s\u1eafc c\u1ee7a b\u1ea1n. M\u1eb7c d\u00f9 m\u1ed9t s\u1ed1 camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n m\u00e3 m\u00e0u tr\u1eafng tr\u00ean n\u1ec1n t\u1ed1i, nh\u01b0ng nhi\u1ec1u thi\u1ebft b\u1ecb c\u0169 h\u01a1n v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 qu\u00e9t c\u1ee7a b\u00ean th\u1ee9 ba s\u1ebd ho\u00e0n to\u00e0n kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. Ngo\u00e0i ra, tr\u00e1nh s\u1eed d\u1ee5ng gradient m\u00e0u, \u0111\u1ed5 b\u00f3ng m\u1ec1m ho\u1eb7c hi\u1ec7u \u1ee9ng trong su\u1ed1t tr\u00ean l\u01b0\u1edbi d\u1eef li\u1ec7u, v\u00ec c\u00e1c thay \u0111\u1ed5i m\u00e0u s\u1eafc tinh t\u1ebf s\u1ebd t\u1ea1o ra t\u00f4ng m\u00e0u trung gian l\u00e0m m\u1edd c\u00e1c c\u1ea1nh m\u00f4-\u0111un.<\/p>\n\n\n\n<figure>\n<table>\n<thead>\n<tr>\n<th>M\u00e0u n\u1ec1n tr\u01b0\u1edbc<\/th>\n<th>M\u00e0u n\u1ec1n<\/th>\n<th>T\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n<\/th>\n<th>K\u1ebft qu\u1ea3 kh\u1ea3 n\u0103ng qu\u00e9t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110en<\/td>\n<td>Tr\u1eafng<\/td>\n<td>21:1<\/td>\n<td>Hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb<\/td>\n<\/tr>\n<tr>\n<td>Xanh H\u1ea3i qu\u00e2n<\/td>\n<td>M\u00e0u Be<\/td>\n<td>15:1<\/td>\n<td>Kh\u1ea3 n\u0103ng qu\u00e9t tuy\u1ec7t v\u1eddi v\u1edbi phong c\u00e1ch th\u01b0\u01a1ng hi\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>Xanh l\u00e1 \u0111\u1eadm<\/td>\n<td>Tr\u1eafng<\/td>\n<td>4.5:1<\/td>\n<td>Ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c; y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m thi\u1ebft b\u1ecb c\u1ea9n th\u1eadn<\/td>\n<\/tr>\n<tr>\n<td>X\u00e1m nh\u1ea1t<\/td>\n<td>Tr\u1eafng<\/td>\n<td>1.5:1<\/td>\n<td>K\u00e9m; kh\u00f4ng qu\u00e9t \u0111\u01b0\u1ee3c tr\u00ean h\u1ea7u h\u1ebft c\u00e1c camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh<\/td>\n<\/tr>\n<tr>\n<td>Tr\u1eafng<\/td>\n<td>\u0110en<\/td>\n<td>21:1<\/td>\n<td>Kh\u00f4ng \u0111\u00e1ng tin c\u1eady; ki\u1ec3u \u0111\u1ea3o ng\u01b0\u1ee3c kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng c\u0169 h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a b\u1ea1n cho kho\u1ea3ng c\u00e1ch v\u00e0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc m\u00e3 QR l\u00e0 m\u1ed9t y\u00eau c\u1ea7u v\u1eadt l\u00fd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ti\u00eau c\u1ef1 v\u00e0 \u0111\u1ed9 ph\u00e2n gi\u1ea3i c\u1ee7a \u1ed1ng k\u00ednh camera di \u0111\u1ed9ng. M\u1ed9t m\u00e3 \u0111\u01b0\u1ee3c in qu\u00e1 nh\u1ecf s\u1ebd b\u1ecb m\u1edd khi nh\u00ecn t\u1eeb xa, ng\u0103n c\u1ea3m bi\u1ebfn quang h\u1ecdc ph\u00e2n gi\u1ea3i t\u1eebng m\u00f4-\u0111un ri\u00eang l\u1ebb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u cho b\u1ea5t k\u1ef3 b\u1ed1 c\u1ee5c n\u00e0o, h\u00e3y s\u1eed d\u1ee5ng t\u1ef7 l\u1ec7 kho\u1ea3ng c\u00e1ch tr\u00ean k\u00edch th\u01b0\u1edbc 10:1. Chia kho\u1ea3ng c\u00e1ch qu\u00e9t d\u1ef1 ki\u1ebfn c\u1ee7a b\u1ea1n cho 10 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao t\u1ed1i thi\u1ec3u c\u1ee7a m\u00e3. V\u00ed d\u1ee5, n\u1ebfu kh\u00e1ch h\u00e0ng qu\u00e9t m\u1ed9t \u00e1p ph\u00edch t\u1eeb kho\u1ea3ng c\u00e1ch 40 inch, m\u00e3 ph\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u 4 x 4 inch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n c\u1ea7m tay nh\u01b0 danh thi\u1ebfp, phi\u1ebfu gi\u1ea3m gi\u00e1 v\u00e0 b\u1ea3ng qu\u1ea3ng c\u00e1o \u0111\u1ec3 b\u00e0n, kh\u00f4ng bao gi\u1edd in nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb l\u00e0 0.8 x 0.8 inch (2 x 2 cm). B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o chi ti\u1ebft c\u1ee7a ch\u00fang t\u00f4i <a href=\"https:\/\/pageloot.com\/vi\/how-to\/qr-code-size-guide\/\">h\u01b0\u1edbng d\u1eabn k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ee5 th\u1ec3 cho b\u1ea3ng qu\u1ea3ng c\u00e1o ngo\u00e0i tr\u1eddi, nh\u00e3n bao b\u00ec v\u00e0 th\u01b0 tr\u1ef1c ti\u1ebfp.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/simple-clean-infographic-aspect-ratio-1-1-white-background-with-black-text-bl-1811-f0fdde0bb895-dd6af99ee349.webp\" alt=\"H\u01b0\u1edbng d\u1eabn k\u00edch th\u01b0\u1edbc QR\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eadt \u0111\u1ed9 d\u1eef li\u1ec7u c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n. M\u1ed9t m\u00e3 QR t\u0129nh ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a m\u1ed9t URL d\u00e0i s\u1ebd \u0111\u00f3ng g\u00f3i h\u00e0ng tr\u0103m m\u00f4-\u0111un nh\u1ecf v\u00e0o l\u01b0\u1edbi, l\u00e0m cho m\u00e3 kh\u00f3 \u0111\u1ecdc h\u01a1n nhi\u1ec1u \u1edf k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n. B\u1ea1n c\u00f3 th\u1ec3 gi\u1eef cho l\u01b0\u1edbi s\u1ea1ch s\u1ebd v\u00e0 m\u1edf b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t <a href=\"https:\/\/pageloot.com\/vi\/qr-code-generator\/\">T\u1ea1o m\u00e3 QR mi\u1ec5n ph\u00ed<\/a> \u0111\u1ec3 t\u1ea1o m\u00e3 QR \u0111\u1ed9ng. M\u00e3 \u0111\u1ed9ng l\u01b0u tr\u1eef m\u1ed9t li\u00ean k\u1ebft chuy\u1ec3n h\u01b0\u1edbng ng\u1eafn, gi\u00fap m\u1eadt \u0111\u1ed9 m\u00f4-\u0111un th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng qu\u00e9t cao.<\/p>\n\n\n\n<blockquote class=\"is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Thi\u1ebft k\u1ebf M\u00e3 c\u00f3 Th\u01b0\u01a1ng hi\u1ec7u c\u00f3 th\u1ec3 Qu\u00e9t \u0111\u01b0\u1ee3c trong V\u00e0i Ph\u00fat<\/strong> B\u1ea1n mu\u1ed1n t\u00edch h\u1ee3p m\u00e0u s\u1eafc th\u01b0\u01a1ng hi\u1ec7u v\u00e0 logo t\u00f9y ch\u1ec9nh m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady k\u1ef9 thu\u1eadt? T\u1ea1o m\u00e3 vector t\u00f9y ch\u1ec9nh v\u1edbi b\u1ea3n xem tr\u01b0\u1edbc thi\u1ebft k\u1ebf theo th\u1eddi gian th\u1ef1c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <a href=\"https:\/\/pageloot.com\/vi\/qr-code-generator-with-logo\/\">T\u1ea1o m\u00e3 QR c\u00f3 logo \u1edf gi\u1eefa<\/a> c\u1ee7a ch\u00fang t\u00f4i ngay h\u00f4m nay.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00edch h\u1ee3p logo m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng ch\u1ee9c n\u0103ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00eam d\u1ea5u hi\u1ec7u ho\u1eb7c bi\u1ec3u t\u01b0\u1ee3ng th\u01b0\u01a1ng hi\u1ec7u v\u00e0o trung t\u00e2m m\u00e3 QR gi\u00fap t\u0103ng c\u01b0\u1eddng nh\u1eadn di\u1ec7n th\u01b0\u01a1ng hi\u1ec7u v\u00e0 \u0111\u1ea3m b\u1ea3o v\u1edbi ng\u01b0\u1eddi d\u00f9ng r\u1eb1ng li\u00ean k\u1ebft an to\u00e0n \u0111\u1ec3 m\u1edf. T\u00f9y ch\u1ec9nh n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1edd kh\u1ea3 n\u0103ng s\u1eeda l\u1ed7i Reed-Solomon, m\u1ed9t thu\u1eadt to\u00e1n to\u00e1n h\u1ecdc gi\u00fap t\u00e1i t\u1ea1o c\u00e1c m\u00f4-\u0111un d\u1eef li\u1ec7u b\u1ecb che khu\u1ea5t, b\u1ecb thi\u1ebfu ho\u1eb7c b\u1ecb h\u1ecfng trong l\u01b0\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e3 QR ti\u00eau chu\u1ea9n cung c\u1ea5p b\u1ed1n c\u1ea5p \u0111\u1ed9 s\u1eeda l\u1ed7i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea5p \u0111\u1ed9 L (Th\u1ea5p) kh\u00f4i ph\u1ee5c t\u1edbi 7% d\u1eef li\u1ec7u b\u1ecb h\u1ecfng v\u00e0 cung c\u1ea5p m\u1eadt \u0111\u1ed9 m\u00f4-\u0111un th\u1ea5p nh\u1ea5t.<\/li>\n<li>C\u1ea5p \u0111\u1ed9 M (Trung b\u00ecnh) kh\u00f4i ph\u1ee5c t\u1edbi 15% d\u1eef li\u1ec7u b\u1ecb h\u1ecfng v\u00e0 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c m\u00e3 ti\u1ebfp th\u1ecb \u0111en tr\u1eafng c\u01a1 b\u1ea3n.<\/li>\n<li>C\u1ea5p \u0111\u1ed9 Q (Ph\u1ea7n t\u01b0) kh\u00f4i ph\u1ee5c t\u1edbi 25% d\u1eef li\u1ec7u b\u1ecb h\u1ecfng v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c s\u1eeda \u0111\u1ed5i thi\u1ebft k\u1ebf v\u1eeba ph\u1ea3i.<\/li>\n<li>C\u1ea5p \u0111\u1ed9 H (Cao) kh\u00f4i ph\u1ee5c t\u1edbi 30% d\u1eef li\u1ec7u b\u1ecb h\u1ecfng v\u00e0 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n nh\u00fang \u0111\u1ed3 h\u1ecda ho\u1eb7c logo t\u00f9y ch\u1ec9nh.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi thi\u1ebft k\u1ebf m\u00e3 c\u00f3 th\u01b0\u01a1ng hi\u1ec7u, h\u00e3y xem x\u00e9t <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-error-correction-works-in-editable-qr-codes\/\">c\u00e1ch s\u1eeda l\u1ed7i ho\u1ea1t \u0111\u1ed9ng<\/a> \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 c\u00e2n b\u1eb1ng vi\u1ec7c ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u v\u1edbi \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u1eabu. C\u1ea5p \u0111\u1ed9 H cho ph\u00e9p b\u1ea1n ph\u1ee7 m\u1ed9t \u0111\u1ed3 h\u1ecda l\u00ean, nh\u01b0ng logo kh\u00f4ng \u0111\u01b0\u1ee3c chi\u1ebfm qu\u00e1 25% \u0111\u1ebfn 30% t\u1ed5ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t. Gi\u1eef logo \u1edf gi\u1eefa v\u00e0 tr\u00e1nh th\u00eam v\u0103n b\u1ea3n nh\u1ecf ho\u1eb7c c\u00e1c chi ti\u1ebft \u0111\u1ed3 h\u1ecda ph\u1ee9c t\u1ea1p tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc \u1edf k\u00edch th\u01b0\u1edbc in nh\u1ecf h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng bao gi\u1edd che khu\u1ea5t c\u00e1c m\u1eabu ch\u1ee9c n\u0103ng quan tr\u1ecdng c\u1ee7a m\u00e3 QR. Ba \u00f4 vu\u00f4ng l\u1edbn \u1edf c\u00e1c g\u00f3c \u2013 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c m\u1eabu t\u00ecm ki\u1ebfm ho\u1eb7c \u0111i\u1ec3m \u0111\u00e1nh d\u1ea5u ph\u00e1t hi\u1ec7n v\u1ecb tr\u00ed \u2013 cho m\u00e1y \u1ea3nh bi\u1ebft m\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng nh\u01b0 th\u1ebf n\u00e0o. N\u1ebfu b\u1ea1n che ho\u1eb7c l\u00e0m m\u00e9o m\u00f3 c\u00e1c \u0111i\u1ec3m g\u00f3c n\u00e0y, ho\u1eb7c c\u00e1c m\u1eabu c\u0103n ch\u1ec9nh nh\u1ecf h\u01a1n g\u1ea7n \u0111\u00f3, ph\u1ea7n m\u1ec1m qu\u00e9t kh\u00f4ng th\u1ec3 di\u1ec5n gi\u1ea3i l\u01b0\u1edbi d\u1eef li\u1ec7u. T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c quy t\u1eafc \u0111\u1eb7t an to\u00e0n trong h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-to-add-logos-to-qr-codes\/\">c\u00e1ch th\u00eam logo v\u00e0o m\u00e3 QR<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gi\u1eef V\u00f9ng Im L\u1eb7ng Xung Quanh M\u00e3 C\u1ee7a B\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f9ng im l\u1eb7ng l\u00e0 kho\u1ea3ng tr\u1ed1ng kh\u00f4ng c\u00f3 g\u00ec bao quanh ho\u00e0n to\u00e0n b\u1ed1n c\u1ea1nh b\u00ean ngo\u00e0i c\u1ee7a m\u00e3 QR. Bi\u00ean gi\u1edbi n\u00e0y t\u1ea1o ra m\u1ed9t v\u00f9ng \u0111\u1ec7m quang h\u1ecdc b\u00e1o hi\u1ec7u cho ph\u1ea7n m\u1ec1m qu\u00e9t bi\u1ebft \u0111\u00e2u l\u00e0 n\u01a1i k\u1ebft th\u00fac c\u1ee7a c\u00e1c t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt xung quanh v\u00e0 n\u01a1i b\u1eaft \u0111\u1ea7u c\u1ee7a l\u01b0\u1edbi d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo ti\u00eau chu\u1ea9n ISO\/IEC 18004, v\u00f9ng im l\u1eb7ng ph\u1ea3i c\u00f3 chi\u1ec1u r\u1ed9ng \u00edt nh\u1ea5t b\u1ed1n m\u00f4-\u0111un (4X) \u1edf c\u1ea3 b\u1ed1n ph\u00eda. N\u1ebfu c\u00e1c m\u00f4-\u0111un vu\u00f4ng ri\u00eang l\u1ebb c\u1ee7a m\u00e3 c\u1ee7a b\u1ea1n r\u1ed9ng 2 mm, b\u1ea1n ph\u1ea3i \u0111\u1ec3 l\u1ea1i m\u1ed9t \u0111\u01b0\u1eddng vi\u1ec1n kh\u00f4ng in \u00edt nh\u1ea5t 8 mm xung quanh to\u00e0n b\u1ed9 k\u00fd hi\u1ec7u.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/simple-modern-illustration-aspect-ratio-1-1-white-background-with-black-text-864-345177e6d216-6e8a11c764ad.webp\" alt=\"V\u00f9ng y\u00ean t\u0129nh QR\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e2m ph\u1ea1m v\u00f9ng im l\u1eb7ng l\u00e0 m\u1ed9t l\u1ed7i thi\u1ebft k\u1ebf th\u01b0\u1eddng g\u1eb7p trong bao b\u00ec th\u01b0\u01a1ng m\u1ea1i v\u00e0 b\u1ed1 c\u1ee5c in \u1ea5n. Khi v\u0103n b\u1ea3n, \u0111\u01b0\u1eddng vi\u1ec1n ho\u1eb7c h\u00ecnh minh h\u1ecda n\u1ec1n trang tr\u00ed ch\u1ea1m v\u00e0o c\u1ea1nh c\u1ee7a m\u00e3, c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh s\u1ebd h\u1ee3p nh\u1ea5t c\u00e1c y\u1ebfu t\u1ed1 \u0111\u00f3 v\u00e0o l\u01b0\u1edbi d\u1eef li\u1ec7u, g\u00e2y ra l\u1ed7i gi\u1ea3i m\u00e3 ngay l\u1eadp t\u1ee9c. Lu\u00f4n duy tr\u00ec to\u00e0n b\u1ed9 v\u00f9ng im l\u1eb7ng v\u00e0 \u0111\u1ea3m b\u1ea3o m\u00e0u n\u1ec1n c\u1ee7a n\u00f3 kh\u1edbp v\u1edbi c\u00e1c m\u00f4-\u0111un s\u00e1ng c\u1ee7a m\u00e3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1eadt li\u1ec7u in v\u00e0 X\u00e1c th\u1ef1c th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u00e3 QR k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 qu\u00e9t m\u01b0\u1ee3t m\u00e0 tr\u00ean m\u00e0n h\u00ecnh \u0111\u1ed9 n\u00e9t cao v\u1eabn c\u00f3 th\u1ec3 th\u1ea5t b\u1ea1i tr\u00ean c\u00e1c v\u1eadt li\u1ec7u v\u1eadt l\u00fd n\u1ebfu qu\u00e1 tr\u00ecnh in \u1ea5n ho\u1eb7c m\u00f4i tr\u01b0\u1eddng b\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 duy tr\u00ec \u0111\u1ed9 r\u00f5 quang h\u1ecdc, h\u00e3y l\u00e0m theo c\u00e1c h\u01b0\u1edbng d\u1eabn s\u1ea3n xu\u1ea5t sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Xu\u1ea5t t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt c\u1ee7a b\u1ea1n \u0111\u1ed9c quy\u1ec1n \u1edf c\u00e1c \u0111\u1ecbnh d\u1ea1ng vector nh\u01b0 SVG, EPS ho\u1eb7c PDF vector \u0111\u1ec3 c\u00e1c c\u1ea1nh lu\u00f4n s\u1eafc n\u00e9t ho\u00e0n h\u1ea3o \u1edf m\u1ecdi t\u1ef7 l\u1ec7.<\/li>\n<li>Duy tr\u00ec \u0111\u1ed9 ph\u00e2n gi\u1ea3i t\u1ed1i thi\u1ec3u 300 DPI n\u1ebfu b\u1ea1n ph\u1ea3i l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c \u0111\u1ecbnh d\u1ea1ng raster nh\u01b0 PNG ho\u1eb7c TIFF.<\/li>\n<li>Ch\u1ecdn lo\u1ea1i gi\u1ea5y m\u1edd ho\u1eb7c satin thay v\u00ec gi\u1ea5y c\u00f3 l\u1edbp ph\u1ee7 b\u00f3ng cao v\u00e0 l\u00e1 kim lo\u1ea1i \u0111\u1ec3 tr\u00e1nh \u00e1nh s\u00e1ng m\u00f4i tr\u01b0\u1eddng ph\u1ea3n chi\u1ebfu l\u00e0m l\u00f3a c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh.<\/li>\n<li>\u0110\u1eb7t m\u00e3 tr\u00ean c\u00e1c b\u1ec1 m\u1eb7t ph\u1eb3ng thay v\u00ec \u0111\u1eb7t tr\u00ean c\u00e1c n\u1ebfp g\u1ea5p, g\u1edd, g\u00f3c ho\u1eb7c chai c\u00f3 \u0111\u1ed9 cong l\u1edbn l\u00e0m bi\u1ebfn d\u1ea1ng l\u01b0\u1edbi h\u00ecnh h\u1ecdc.<\/li>\n<li>\u0110\u1eb7t m\u00e3 c\u00f4ng khai \u1edf t\u1ea7m m\u1eaft t\u1ef1 nhi\u00ean v\u00e0 \u0111\u1ea3m b\u1ea3o m\u00f4i tr\u01b0\u1eddng hi\u1ec3n th\u1ecb c\u00f3 \u0111\u1ee7 \u00e1nh s\u00e1ng.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n d\u00e0nh th\u1eddi gian \u0111\u1ec3 <a href=\"https:\/\/pageloot.com\/vi\/how-to\/test-a-qr-code-before-printing\/\">ki\u1ec3m tra m\u00e3 QR tr\u01b0\u1edbc khi in<\/a> c\u00e1c \u0111\u1ee3t s\u1ea3n xu\u1ea5t l\u1edbn. T\u1ea1o m\u1ed9t b\u1ea3n m\u1eabu v\u1eadt l\u00fd duy nh\u1ea5t tr\u00ean v\u1eadt li\u1ec7u th\u1ef1c t\u1ebf b\u1ea1n \u0111\u1ecbnh s\u1eed d\u1ee5ng. Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m th\u1ef1c \u0111\u1ecba to\u00e0n di\u1ec7n b\u1eb1ng c\u1ea3 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh iOS v\u00e0 Android, c\u00e1c c\u00f4ng c\u1ee5 m\u00e1y \u1ea3nh t\u00edch h\u1ee3p v\u00e0 m\u1ed9t <a href=\"https:\/\/pageloot.com\/vi\/qr-code-scanner\/\">m\u00e1y qu\u00e9t m\u00e3 QR tr\u1ef1c tuy\u1ebfn<\/a> \u0111\u1ec3 x\u00e1c minh kh\u1ea3 n\u0103ng qu\u00e9t nhanh trong \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng v\u00e0 g\u00f3c l\u1ec7ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kh\u1edfi ch\u1ea1y c\u00e1c chi\u1ebfn d\u1ecbch QR t\u00f9y ch\u1ec9nh \u0111\u00e1ng tin c\u1eady<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf m\u1ed9t m\u00e3 QR h\u1ea5p d\u1eabn kh\u00f4ng bao gi\u1edd n\u00ean l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t qu\u00e9t. B\u1eb1ng c\u00e1ch duy tr\u00ec \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n m\u1ea1nh gi\u1eefa ti\u1ec1n c\u1ea3nh v\u00e0 h\u1eadu c\u1ea3nh, \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc m\u00e3 d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch xem th\u1ef1c t\u1ebf, b\u1ea3o v\u1ec7 v\u00f9ng y\u00ean t\u0129nh b\u1ed1n m\u00f4-\u0111un v\u00e0 \u0111\u1eb7t m\u1ee9c s\u1eeda l\u1ed7i th\u00e0nh C\u1ea5p \u0111\u1ed9 H cho c\u00e1c logo nh\u00fang, b\u1ea1n \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng t\u00e1c m\u01b0\u1ee3t m\u00e0 cho m\u1ecdi kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi b\u1ea1n kh\u1edfi ch\u1ea1y chi\u1ebfn d\u1ecbch ti\u1ebfp theo, h\u00e3y xem l\u1ea1i h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-to-test-qr-codes-for-mobile-usability\/\">ki\u1ec3m tra m\u00e3 QR v\u1ec1 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng<\/a> \u0111\u1ec3 x\u00e1c minh r\u1eb1ng c\u00e1c trang \u0111\u00edch sau khi qu\u00e9t c\u1ee7a b\u1ea1n t\u1ea3i nhanh v\u00e0 hi\u1ec3n th\u1ecb ch\u00ednh x\u00e1c tr\u00ean m\u1ecdi k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh. V\u1edbi c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt \u0111\u00e3 c\u00f3, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 tin tri\u1ec3n khai c\u00e1c m\u00e3 QR c\u00f3 th\u01b0\u01a1ng hi\u1ec7u thu h\u00fat s\u1ef1 ch\u00fa \u00fd v\u00e0 th\u00fac \u0111\u1ea9y t\u01b0\u01a1ng t\u00e1c k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<div class=\"schema-faq\"><div class=\"schema-faq-section\" id=\"faq-question-74c58ca42aae\"><strong class=\"schema-faq-question\">K\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i cho m\u00e3 QR \u0111\u01b0\u1ee3c in l\u00e0 bao nhi\u00eau?<\/strong> <p class=\"schema-faq-answer\">\u0110\u1ec3 qu\u00e9t t\u1ea7m g\u1ea7n tr\u00ean danh thi\u1ebfp v\u00e0 bao b\u00ec, h\u00e3y gi\u1eef m\u00e3 QR c\u1ee7a b\u1ea1n c\u00f3 k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u 0,8 x 0,8 inch (2 x 2 cm). \u0110\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch l\u1edbn h\u01a1n, h\u00e3y tu\u00e2n theo t\u1ef7 l\u1ec7 10:1, cho ph\u00e9p chi\u1ec1u r\u1ed9ng m\u00e3 1 inch cho m\u1ed7i 10 inch kho\u1ea3ng c\u00e1ch gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e3.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-85ae5ca591c5\"><strong class=\"schema-faq-question\">T\u1ea1i sao m\u00e3 QR \u0111\u1ea3o ng\u01b0\u1ee3c kh\u00f4ng th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb?<\/strong> <p class=\"schema-faq-answer\">H\u1ea7u h\u1ebft c\u00e1c \u0111\u1ea7u \u0111\u1ecdc m\u00e3 v\u1ea1ch v\u00e0 camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 nh\u1eadn di\u1ec7n c\u00e1c m\u1eabu t\u1ed1i tr\u00ean n\u1ec1n s\u00e1ng b\u1eb1ng c\u00e1ch \u0111o \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1. Vi\u1ec7c \u0111\u1ea3o ng\u01b0\u1ee3c m\u00e0u s\u1eafc khi\u1ebfn c\u00e1c thu\u1eadt to\u00e1n ph\u00e1t hi\u1ec7n c\u1ea1nh b\u1ecb l\u1ed7i, \u0111\u1eb7c bi\u1ec7t tr\u00ean c\u00e1c \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u0169 h\u01a1n, \u1ee9ng d\u1ee5ng c\u1ee7a b\u00ean th\u1ee9 ba ho\u1eb7c trong kh\u00f4ng gian thi\u1ebfu s\u00e1ng.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-0e3d237eb758\"><strong class=\"schema-faq-question\">T\u00f4i n\u00ean ch\u1ecdn m\u1ee9c \u0111\u1ed9 s\u1eeda l\u1ed7i n\u00e0o khi th\u00eam logo th\u01b0\u01a1ng hi\u1ec7u?<\/strong> <p class=\"schema-faq-answer\">B\u1ea1n n\u00ean ch\u1ecdn s\u1eeda l\u1ed7i C\u1ea5p \u0111\u1ed9 H, c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c t\u1edbi 30% d\u1eef li\u1ec7u b\u1ecb che ph\u1ee7 ho\u1eb7c che khu\u1ea5t. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n \u0111\u1eb7t m\u1ed9t logo \u1edf gi\u1eefa che ph\u1ee7 t\u1edbi 25% \u0111\u1ebfn 30% m\u00e3 m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng kh\u1ea3 n\u0103ng gi\u1ea3i m\u00e3 th\u00f4ng tin c\u01a1 b\u1ea3n c\u1ee7a m\u00e1y qu\u00e9t.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u00e1ch thi\u1ebft k\u1ebf m\u00e3 QR c\u00f3 th\u01b0\u01a1ng hi\u1ec7u c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c. Kh\u00e1m ph\u00e1 c\u00e1c quy t\u1eafc thi\u1ebft y\u1ebfu v\u1ec1 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n m\u00e0u s\u1eafc, t\u1ef7 l\u1ec7 k\u00edch th\u01b0\u1edbc, v\u00f9ng y\u00ean t\u0129nh v\u00e0 s\u1eeda l\u1ed7i logo.<\/p>","protected":false},"author":17,"featured_media":56360,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-45562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Design QR Codes for Reliable Scanning<\/title>\n<meta name=\"description\" content=\"Learn to design QR codes for reliable scans. 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This guide covers technical tips for contrast, sizing, quiet zones, and logos to ensure reliable performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pageloot.com\/vi\/blog\/9-qr-code-design-tips-for-better-scans\/\" \/>\n<meta property=\"og:site_name\" content=\"Pageloot\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pageloot\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-30T05:47:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-29T06:18:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/photorealistic-lifestyle-photo-aspect-ratio-1-1-a-professional-graphic-designe-7304-dd7e69b93617.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Siim T\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:site\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Siim T\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/\"},\"author\":{\"name\":\"Siim T\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/#\\\/schema\\\/person\\\/fa28992c2e52546f0812833bac852dfe\"},\"headline\":\"How to Design QR Codes for Reliable Scanning\",\"datePublished\":\"2025-08-30T05:47:39+00:00\",\"dateModified\":\"2026-09-29T06:18:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/\"},\"wordCount\":1377,\"publisher\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/qr-code-scanning-d44bed-29919dbaf728.webp\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"vi\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/\",\"url\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/\",\"name\":\"How to Design QR Codes for Reliable Scanning\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/9-qr-code-design-tips-for-better-scans\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/qr-code-scanning-d44bed-29919dbaf728.webp\",\"datePublished\":\"2025-08-30T05:47:39+00:00\",\"dateModified\":\"2026-09-29T06:18:20+00:00\",\"description\":\"Learn to design QR codes for reliable scans. 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V\u1edbi chuy\u00ean m\u00f4n s\u00e2u s\u1eafc k\u00e9o d\u00e0i h\u01a1n 5 n\u0103m ch\u1ec9 v\u1ec1 m\u00e3 QR, Siim \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t chuy\u00ean gia v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y trong l\u0129nh v\u1ef1c n\u00e0y. Anh \u1ea5y \u0111\u00e3 c\u00f3 nh\u1eefng b\u01b0\u1edbc ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong vi\u1ec7c t\u1eadn d\u1ee5ng c\u00f4ng ngh\u1ec7 QR \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a v\u00e0 t\u0103ng c\u01b0\u1eddng c\u00e1c t\u01b0\u01a1ng t\u00e1c k\u1ef9 thu\u1eadt s\u1ed1. Cu\u1ed9c h\u00e0nh tr\u00ecnh c\u1ee7a anh kh\u00f4ng ch\u1ec9 b\u1eaft \u0111\u1ea7u \u1edf \u0111\u00e2y. Siim c\u00f3 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ed1 s\u00e2u r\u1ed9ng v\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m v\u1eefng ch\u1eafc trong l\u0129nh v\u1ef1c Ph\u1ea7n m\u1ec1m d\u01b0\u1edbi d\u1ea1ng d\u1ecbch v\u1ee5 (SaaS), m\u1ed9t minh ch\u1ee9ng cho ki\u1ebfn th\u1ee9c s\u00e2u r\u1ed9ng c\u1ee7a \u00f4ng v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt s\u1ed1.","sameAs":["https:\/\/www.linkedin.com\/in\/siim-tiigimagi\/"]},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-74c58ca42aae","position":1,"url":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-74c58ca42aae","name":"K\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i cho m\u00e3 QR \u0111\u01b0\u1ee3c in l\u00e0 bao nhi\u00eau?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For close-range scanning on business cards and packaging, keep your QR code at least 0.8 x 0.8 inches (2 x 2 cm). For larger distances, follow the 10:1 ratio, allowing 1 inch of code width for every 10 inches of distance between the user and the code.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-85ae5ca591c5","position":2,"url":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-85ae5ca591c5","name":"T\u1ea1i sao m\u00e3 QR \u0111\u1ea3o ng\u01b0\u1ee3c kh\u00f4ng th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Most barcode readers and smartphone cameras are programmed to identify dark patterns on light backgrounds by measuring reflected light. Inverting the colors causes edge-detection algorithms to fail, particularly on older smartphones, third-party apps, or in dimly lit spaces.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-0e3d237eb758","position":3,"url":"https:\/\/pageloot.com\/blog\/9-qr-code-design-tips-for-better-scans\/#faq-question-0e3d237eb758","name":"T\u00f4i n\u00ean ch\u1ecdn m\u1ee9c \u0111\u1ed9 s\u1eeda l\u1ed7i n\u00e0o khi th\u00eam logo th\u01b0\u01a1ng hi\u1ec7u?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"You should select Level H error correction, which recovers up to 30% of covered or obscured data. This allows you to place a centered logo covering up to 25% to 30% of the code without breaking the scanner's ability to decode the underlying information.","inLanguage":"vi"},"inLanguage":"vi"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/comments?post=45562"}],"version-history":[{"count":9,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45562\/revisions"}],"predecessor-version":[{"id":56700,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45562\/revisions\/56700"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media\/56360"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media?parent=45562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/categories?post=45562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/tags?post=45562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}