{"id":575707,"date":"2026-08-05T08:57:19","date_gmt":"2026-08-05T01:57:19","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=575707"},"modified":"2026-08-17T10:26:15","modified_gmt":"2026-08-17T03:26:15","slug":"aspect-ratio-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/aspect-ratio-la-gi\/","title":{"rendered":"Aspect ratio l\u00e0 g\u00ec? T\u1ef7 l\u1ec7 khung h\u00ecnh ph\u1ed5 bi\u1ebfn v\u00e0 vai tr\u00f2"},"content":{"rendered":"<p>Aspect ratio (t\u1ef7 l\u1ec7 khung h\u00ecnh) l\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a m\u1ed9t m\u00e0n h\u00ecnh, h\u00ecnh \u1ea3nh ho\u1eb7c video. V\u00ed d\u1ee5, t\u1ef7 l\u1ec7 16:9 ngh\u0129a l\u00e0 \u1ee9ng v\u1edbi 16 ph\u1ea7n chi\u1ec1u r\u1ed9ng s\u1ebd c\u00f3 9 ph\u1ea7n chi\u1ec1u cao t\u01b0\u01a1ng \u1ee9ng. Aspect ratio quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp \u0111\u1ebfn h\u00ecnh d\u1ea1ng c\u1ee7a khung h\u00ecnh \u2013 t\u1eeb vu\u00f4ng v\u1eafn, r\u1ed9ng r\u00e3i cho \u0111\u1ebfn thu\u00f4n d\u00e0i \u2013 \u0111\u1ed3ng th\u1eddi \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m xem phim, ch\u01a1i game hay l\u01b0\u1edbt web tr\u00ean c\u00e1c thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt s\u1ed1. \u0110\u00e2y l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 v\u00f4 c\u00f9ng quen thu\u1ed9c tr\u00ean m\u00e0n h\u00ecnh <strong><a href=\"https:\/\/hoanghamobile.com\/dien-thoai-di-dong\">\u0111i\u1ec7n tho\u1ea1i<\/a><\/strong>, TV, m\u00e1y t\u00ednh c\u0169ng nh\u01b0 c\u00e1c \u0111\u1ecbnh d\u1ea1ng video v\u00e0 h\u00ecnh \u1ea3nh hi\u1ec7n nay. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch chi ti\u1ebft aspect ratio l\u00e0 g\u00ec, c\u00e1c t\u1ef7 l\u1ec7 ph\u1ed5 bi\u1ebfn v\u00e0 vai tr\u00f2 quan tr\u1ecdng c\u1ee7a n\u00f3 trong th\u1ef1c t\u1ebf.<\/p>\n<h2>Aspect ratio l\u00e0 g\u00ec?<\/h2>\n<p>Aspect ratio (t\u1ef7 l\u1ec7 khung h\u00ecnh, t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh) l\u00e0 th\u00f4ng s\u1ed1 th\u1ec3 hi\u1ec7n m\u1ed1i quan h\u1ec7 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a m\u1ed9t khung h\u00ecnh \u2013 \u00e1p d\u1ee5ng cho c\u1ea3 m\u00e0n h\u00ecnh ph\u1ea7n c\u1ee9ng l\u1eabn b\u1ee9c \u1ea3nh hay video k\u1ef9 thu\u1eadt s\u1ed1. Th\u00f4ng s\u1ed1 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng hai con s\u1ed1 ph\u00e2n t\u00e1ch b\u1eb1ng d\u1ea5u hai ch\u1ea5m (v\u00ed d\u1ee5: 16:9, 4:3, 21:9).<\/p>\n<p>Con s\u1ed1 n\u00e0y gi\u00fap ng\u01b0\u1eddi xem h\u00ecnh dung r\u00f5 h\u00ecnh d\u1ea1ng c\u1ee7a khung h\u00ecnh: t\u1ef7 l\u1ec7 c\u00e0ng &#8220;r\u1ed9ng&#8221; (s\u1ed1 \u0111\u1ea7u l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi s\u1ed1 sau) th\u00ec khung h\u00ecnh c\u00e0ng k\u00e9o d\u00e0i theo chi\u1ec1u ngang. Ch\u1eb3ng h\u1ea1n, 16:9 l\u00e0 t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh r\u1ed9ng chu\u1ea9n m\u1ef1c cho TV v\u00e0 video truy\u1ec1n th\u1ed1ng; 4:3 l\u00e0 t\u1ef7 l\u1ec7 g\u1ea7n nh\u01b0 vu\u00f4ng c\u1ee7a c\u00e1c d\u00f2ng m\u00e0n h\u00ecnh \u0111\u1eddi c\u0169; trong khi 21:9 l\u00e0 t\u1ef7 l\u1ec7 si\u00eau r\u1ed9ng (ultrawide) chuy\u00ean d\u00f9ng cho phim \u0111i\u1ec7n \u1ea3nh chi\u1ebfu r\u1ea1p v\u00e0 m\u00e0n h\u00ecnh gaming cao c\u1ea5p.<\/p>\n<p>Aspect ratio \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1ch th\u1ee9c n\u1ed9i dung hi\u1ec3n th\u1ecb tr\u00ean thi\u1ebft b\u1ecb. N\u1ebfu n\u1ed9i dung c\u00f3 t\u1ef7 l\u1ec7 kh\u00e1c bi\u1ec7t so v\u1edbi t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh, hi\u1ec3n th\u1ecb s\u1ebd xu\u1ea5t hi\u1ec7n c\u00e1c vi\u1ec1n \u0111en (hai b\u00ean ho\u1eb7c tr\u00ean d\u01b0\u1edbi), ho\u1eb7c h\u00ecnh \u1ea3nh ph\u1ea3i ch\u1ecbu v\u1ec7t c\u1eaft\/k\u00e9o gi\u00e3n n\u1ebfu b\u1ecb \u00e9p cho v\u1eeba kh\u00edt. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 t\u1ef7 l\u1ec7 khung h\u00ecnh s\u1ebd gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb hi\u1ec3n th\u1ecb v\u00e0 thi\u1ebft l\u1eadp \u0111\u1ecbnh d\u1ea1ng n\u1ed9i dung ph\u00f9 h\u1ee3p.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-576334 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-1.jpg\" alt=\"aspect-ratio-la-gi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e1c t\u1ef7 l\u1ec7 khung h\u00ecnh ph\u1ed5 bi\u1ebfn<\/h2>\n<table>\n<thead>\n<tr>\n<th>T\u1ef7 l\u1ec7<\/th>\n<th>\u0110\u1eb7c \u0111i\u1ec3m, \u1ee9ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>16:9<\/td>\n<td>T\u1ef7 l\u1ec7 r\u1ed9ng ph\u1ed5 bi\u1ebfn nh\u1ea5t: TV, video YouTube, m\u00e0n h\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>4:3<\/td>\n<td>G\u1ea7n vu\u00f4ng, m\u00e0n h\u00ecnh v\u00e0 TV \u0111\u1eddi c\u0169, m\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>21:9<\/td>\n<td>Si\u00eau r\u1ed9ng (ultrawide): phim \u0111i\u1ec7n \u1ea3nh, m\u00e0n h\u00ecnh gaming<\/td>\n<\/tr>\n<tr>\n<td>1:1<\/td>\n<td>Vu\u00f4ng: \u1ea3nh m\u1ea1ng x\u00e3 h\u1ed9i (Instagram), avatar<\/td>\n<\/tr>\n<tr>\n<td>9:16<\/td>\n<td>D\u1ecdc: video ng\u1eafn (TikTok, Reels, Stories)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Aspect ratio tr\u00ean m\u00e0n h\u00ecnh \u0111i\u1ec7n tho\u1ea1i<\/h2>\n<p>T\u1ef7 l\u1ec7 khung h\u00ecnh tr\u00ean m\u00e0n h\u00ecnh <strong><a href=\"https:\/\/hoanghamobile.com\/dien-thoai-di-dong\">\u0111i\u1ec7n tho\u1ea1i<\/a> <\/strong>\u0111\u00e3 tr\u1ea3i qua b\u01b0\u1edbc chuy\u1ec3n m\u00ecnh m\u1ea1nh m\u1ebd qua c\u00e1c th\u1ebf h\u1ec7 s\u1ea3n ph\u1ea9m. Tr\u01b0\u1edbc \u0111\u00e2y, \u0111a s\u1ed1 Smartphone \u0111\u1ec1u trung th\u00e0nh v\u1edbi t\u1ef7 l\u1ec7 chu\u1ea9n 16:9. Tuy nhi\u00ean, trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e3 chuy\u1ec3n h\u01b0\u1edbng sang c\u00e1c t\u1ef7 l\u1ec7 thu\u00f4n d\u00e0i h\u01a1n nh\u01b0 18:9 (2:1), 19.5:9, 20:9 hay 21:9&#8230;<\/p>\n<p>Thi\u1ebft k\u1ebf m\u00e0n h\u00ecnh d\u00e0i gi\u00fap t\u1ed5ng th\u1ec3 th\u00e2n m\u00e1y thon g\u1ecdn, d\u1ec5 d\u00e0ng c\u1ea7m n\u1eafm b\u1eb1ng m\u1ed9t tay nh\u01b0ng v\u1eabn hi\u1ec3n th\u1ecb \u0111\u01b0\u1ee3c nhi\u1ec1u d\u00f2ng th\u00f4ng tin h\u01a1n khi l\u01b0\u1edbt web v\u00e0 \u0111\u1ecdc tin t\u1ee9c. T\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh d\u00e0i n\u00e0y c\u0169ng h\u1ed7 tr\u1ee3 ho\u00e0n h\u1ea3o cho xu h\u01b0\u1edbng thi\u1ebft k\u1ebf vi\u1ec1n si\u00eau m\u1ecfng v\u00e0 m\u00e0n h\u00ecnh &#8220;tr\u00e0n vi\u1ec1n&#8221;.<\/p>\n<p>Tuy nhi\u00ean, khi b\u1ea1n xem c\u00e1c video \u0111\u1ecbnh d\u1ea1ng 16:9 tr\u00ean m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i m\u00e0n h\u00ecnh d\u00e0i (nh\u01b0 20:9), m\u00e0n h\u00ecnh s\u1ebd xu\u1ea5t hi\u1ec7n vi\u1ec1n \u0111en \u1edf hai b\u00ean (ho\u1eb7c b\u1ea1n ph\u1ea3i ch\u1ecdn Ph\u00f3ng to \u2013 ch\u1ea5p nh\u1eadn c\u1eaft b\u1ecf m\u1ed9t ph\u1ea7n r\u00eca h\u00ecnh \u1ea3nh). Ng\u01b0\u1ee3c l\u1ea1i, \u0111\u1ed1i v\u1edbi c\u00e1c video quay d\u1ecdc theo chu\u1ea9n 9:16, \u0111i\u1ec7n tho\u1ea1i m\u00e0n h\u00ecnh d\u00e0i s\u1ebd hi\u1ec3n th\u1ecb tr\u1ecdn v\u1eb9n v\u00e0 l\u1ea5p \u0111\u1ea7y 100% kh\u00f4ng gian tr\u1ea3i nghi\u1ec7m. Vi\u1ec7c hi\u1ec3u r\u00f5 t\u1ef7 l\u1ec7 khung h\u00ecnh s\u1ebd gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao video kh\u00f4ng l\u1ea5p \u0111\u1ea7y m\u00e0n h\u00ecnh, t\u1eeb \u0111\u00f3 gi\u00fap b\u1ea1n ch\u1ecdn mua chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i \u0111\u00fang v\u1edbi th\u00f3i quen gi\u1ea3i tr\u00ed (th\u01b0\u1eddng xuy\u00ean xem phim hay thi\u00ean v\u1ec1 l\u01b0\u1edbt m\u1ea1ng x\u00e3 h\u1ed9i).<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-576335 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-2.jpg\" alt=\"aspect-ratio-la-gi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Vai tr\u00f2 c\u1ee7a aspect ratio<\/h2>\n<ul>\n<li>Quy\u1ebft \u0111\u1ecbnh h\u00ecnh d\u1ea1ng hi\u1ec3n th\u1ecb: khung h\u00ecnh r\u1ed9ng, d\u00e0i hay vu\u00f4ng.<\/li>\n<li>Tr\u1ea3i nghi\u1ec7m xem n\u1ed9i dung: \u1ea3nh h\u01b0\u1edfng c\u00e1ch video, \u1ea3nh l\u1ea5p \u0111\u1ea7y m\u00e0n h\u00ecnh.<\/li>\n<li>Thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb: t\u1ef7 l\u1ec7 d\u00e0i gi\u00fap th\u00e2n m\u00e1y thon g\u1ecdn, vi\u1ec1n m\u1ecfng.<\/li>\n<li>\u0110\u1ecbnh d\u1ea1ng n\u1ed9i dung: ch\u1ecdn t\u1ef7 l\u1ec7 ph\u00f9 h\u1ee3p n\u1ec1n t\u1ea3ng (ngang cho YouTube, d\u1ecdc cho TikTok).<\/li>\n<li>T\u01b0\u01a1ng th\u00edch: n\u1ed9i dung v\u00e0 m\u00e0n h\u00ecnh c\u00f9ng t\u1ef7 l\u1ec7 th\u00ec hi\u1ec3n th\u1ecb \u0111\u1eb9p, kh\u00f4ng vi\u1ec1n\/c\u1eaft.<\/li>\n<\/ul>\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/backdrop-chup-anh\/\">Backdrop Ch\u1ee5p \u1ea2nh: C\u00e1c Lo\u1ea1i, C\u00e1ch Ch\u1ecdn &amp; M\u1eb9o D\u00f9ng \u0110\u1ec3 \u1ea2nh \u0110\u1eb9p 2026<\/a><\/strong><\/p>\n<h2>C\u00e1ch ch\u1ecdn t\u1ef7 l\u1ec7 khung h\u00ecnh ph\u00f9 h\u1ee3p<\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn t\u1ef7 l\u1ec7 khung h\u00ecnh ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n:<\/p>\n<ul>\n<li>Khi ch\u1ecdn mua thi\u1ebft b\u1ecb: N\u1ebfu nhu c\u1ea7u ch\u00ednh l\u00e0 xem phim \u0111i\u1ec7n \u1ea3nh v\u00e0 ch\u01a1i game console\/PC, c\u00e1c m\u00e0n h\u00ecnh t\u1ef7 l\u1ec7 r\u1ed9ng (16:9, 21:9) s\u1ebd \u0111em l\u1ea1i g\u00f3c nh\u00ecn g\u00f3c r\u1ed9ng ch\u00e2n th\u1ef1c. N\u1ebfu nhu c\u1ea7u ch\u1ee7 y\u1ebfu l\u00e0 \u0111\u1ecdc b\u00e1o, l\u01b0\u1edbt web hay c\u1eadp nh\u1eadt m\u1ea1ng x\u00e3 h\u1ed9i, <strong><a href=\"https:\/\/hoanghamobile.com\/dien-thoai-di-dong\">\u0111i\u1ec7n tho\u1ea1i<\/a><\/strong> c\u00f3 m\u00e0n h\u00ecnh t\u1ef7 l\u1ec7 d\u00e0i (20:9) s\u1ebd mang l\u1ea1i s\u1ef1 ti\u1ec7n l\u1ee3i v\u01b0\u1ee3t tr\u1ed9i.<\/li>\n<li>Khi s\u00e1ng t\u1ea1o n\u1ed9i dung: B\u1ea1n n\u00ean c\u00e0i \u0111\u1eb7t t\u1ef7 l\u1ec7 theo \u0111\u00fang n\u1ec1n t\u1ea3ng chu\u1ea9n b\u1ecb \u0111\u0103ng t\u1ea3i. Video chu\u1ea9n ngang 16:9 t\u1ed1i \u01b0u cho YouTube, TV; video chu\u1ea9n d\u1ecdc 9:16 d\u00e0nh ri\u00eang cho TikTok, Facebook Reels, Instagram Stories; trong khi \u1ea3nh chu\u1ea9n vu\u00f4ng 1:1 ph\u00f9 h\u1ee3p cho b\u00e0i \u0111\u0103ng b\u00e0i vi\u1ebft b\u00e0i m\u1ea1ng x\u00e3 h\u1ed9i.<\/li>\n<li>Khi th\u01b0\u1edfng th\u1ee9c n\u1ed9i dung: Vi\u1ec7c xu\u1ea5t hi\u1ec7n v\u1ec7t \u0111en khi n\u1ed9i dung kh\u00e1c t\u1ef7 l\u1ec7 v\u1edbi m\u00e0n h\u00ecnh l\u00e0 \u0111i\u1ec1u ho\u00e0n to\u00e0n b\u00ecnh th\u01b0\u1eddng nh\u1eb1m gi\u1eef tr\u1ecdn v\u1eb9n b\u1ed1 c\u1ee5c g\u1ed1c. B\u1ea1n c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa ch\u1ebf \u0111\u1ed9 &#8220;V\u1eeba m\u00e0n h\u00ecnh&#8221; (gi\u1eef nguy\u00ean t\u1ef7 l\u1ec7, ch\u1ea5p nh\u1eadn vi\u1ec1n \u0111en) ho\u1eb7c &#8220;L\u1ea5p \u0111\u1ea7y&#8221; (ph\u00f3ng to h\u00ecnh, ch\u1ea5p nh\u1eadn m\u1ea5t chi ti\u1ebft m\u00e9p) sao cho tho\u1ea3i m\u00e1i nh\u1ea5t.<\/li>\n<\/ul>\n<p>N\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c v\u1ec1 aspect ratio s\u1ebd gi\u00fap b\u1ea1n t\u1ed1i \u01b0u h\u00f3a tr\u1ea3i nghi\u1ec7m xem l\u1eabn s\u1ea3n xu\u1ea5t n\u1ed9i dung, lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n t\u00ecnh tr\u1ea1ng h\u00ecnh \u1ea3nh b\u1ecb k\u00e9o m\u00e9o, m\u1ea5t chi ti\u1ebft hay hi\u1ec3n th\u1ecb sai l\u1ec7ch.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-576336 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-3.jpg\" alt=\"aspect-ratio-la-gi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Aspect ratio trong nhi\u1ebfp \u1ea3nh<\/h2>\n<p>T\u1ef7 l\u1ec7 khung h\u00ecnh gi\u1eef vai tr\u00f2 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong ngh\u1ec7 thu\u1eadt nhi\u1ebfp \u1ea3nh v\u00ec n\u00f3 tr\u1ef1c ti\u1ebfp t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn b\u1ed1 c\u1ee5c v\u00e0 c\u1ea3m x\u00fac c\u1ee7a b\u1ee9c \u1ea3nh. C\u00e1c t\u1ef7 l\u1ec7 \u1ea3nh ph\u1ed5 bi\u1ebfn trong nhi\u1ebfp \u1ea3nh bao g\u1ed3m:<\/p>\n<ul>\n<li>3:2: T\u1ef7 l\u1ec7 truy\u1ec1n th\u1ed1ng chu\u1ea9n m\u1ef1c c\u1ee7a c\u00e1c d\u00f2ng m\u00e1y \u1ea3nh DSLR\/Mirrorless, r\u1ea5t h\u1ee3p \u0111\u1ec3 in \u1ea5n r\u1eeda \u1ea3nh.<\/li>\n<li>4:3: T\u1ef7 l\u1ec7 m\u1eb7c \u0111\u1ecbnh ph\u1ed5 bi\u1ebfn tr\u00ean <strong><a href=\"https:\/\/hoanghamobile.com\/dien-thoai-di-dong\">\u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh<\/a><\/strong>, mang l\u1ea1i s\u1ef1 c\u00e2n \u0111\u1ed1i t\u1ef1 nhi\u00ean.<\/li>\n<li>1:1: B\u1ed1 c\u1ee5c vu\u00f4ng gi\u00fap t\u1ea1o c\u1ea3m gi\u00e1c c\u00e2n b\u1eb1ng, thu h\u00fat \u00e1nh nh\u00ecn v\u00e0o t\u00e2m \u0111i\u1ec3m, r\u1ea5t th\u00edch h\u1ee3p cho m\u1ea1ng x\u00e3 h\u1ed9i.<\/li>\n<li>16:9: Khung h\u00ecnh r\u1ed9ng mang \u0111\u1eadm ch\u1ea5t \u0111i\u1ec7n \u1ea3nh, t\u1ed1i \u01b0u tuy\u1ec7t \u0111\u1ed1i cho c\u00e1c b\u1ee9c \u1ea3nh ch\u1ee5p phong c\u1ea3nh, kh\u00f4ng gian bao la ho\u1eb7c video <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/timelapse-la-gi\/\">timelapse<\/a> m\u00e2y tr\u1eddi.<\/li>\n<\/ul>\n<p>Khi ch\u1ee5p \u1ea3nh, b\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp s\u1eb5n t\u1ef7 l\u1ec7 khung h\u00ecnh trong c\u00e0i \u0111\u1eb7t camera t\u00f9y thu\u1ed9c v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. Vi\u1ec7c ch\u1ecdn \u0111\u00fang t\u1ef7 l\u1ec7 t\u1eeb \u0111\u1ea7u gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng c\u0103n ch\u1ec9nh b\u1ed1 c\u1ee5c chu\u1ea9n x\u00e1c. Ngo\u00e0i ra, trong qu\u00e1 tr\u00ecnh h\u1eadu k\u1ef3, b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 c\u1eaft (crop) \u1ea3nh sang t\u1ef7 l\u1ec7 kh\u00e1c nh\u01b0ng s\u1ebd ph\u1ea3i ch\u1ea5p nh\u1eadn m\u1ea5t m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u h\u00ecnh \u1ea3nh \u1edf c\u00e1c m\u00e9p.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-576337 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-4.jpg\" alt=\"aspect-ratio-la-gi-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>L\u01b0u \u00fd v\u1ec1 aspect ratio khi xem v\u00e0 t\u1ea1o n\u1ed9i dung<\/h2>\n<p>\u0110\u1ec3 c\u00f3 tr\u1ea3i nghi\u1ec7m h\u00ecnh \u1ea3nh \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u nh\u1ea5t, b\u1ea1n n\u00ean l\u01b0u \u00fd m\u1ed9t s\u1ed1 \u0111i\u1ec3m sau:<\/p>\n<ol>\n<li>Hi\u1ec3u \u0111\u00fang v\u1ec1 vi\u1ec1n \u0111en: Khi xem video c\u00f3 d\u1ea3i \u0111en hai b\u00ean, \u0111\u00f3 l\u00e0 c\u01a1 ch\u1ebf b\u1ea3o v\u1ec7 gi\u1eef nguy\u00ean t\u1ef7 l\u1ec7 g\u1ed1c c\u1ee7a t\u00e1c ph\u1ea9m, gi\u00fap h\u00ecnh \u1ea3nh kh\u00f4ng b\u1ecb m\u00e9o m\u00f3.<\/li>\n<li>X\u00e1c \u0111\u1ecbnh t\u1ef7 l\u1ec7 tr\u01b0\u1edbc khi quay: Tr\u01b0\u1edbc khi b\u1ea5m m\u00e1y quay video, h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 n\u1ec1n t\u1ea3ng xu\u1ea5t b\u1ea3n \u0111\u1ec3 \u0111\u1eb7t m\u00e1y ngang (16:9) ho\u1eb7c \u0111\u1eb7t m\u00e1y d\u1ecdc (9:16). Vi\u1ec7c quay sai t\u1ef7 l\u1ec7 s\u1ebd khi\u1ebfn video b\u1ecb c\u1eaft x\u00e9n nghi\u00eam tr\u1ecdng ho\u1eb7c l\u00e8n vi\u1ec1n \u0111en r\u1ea5t x\u1ea5u khi \u0111\u0103ng t\u1ea3i.<\/li>\n<li>Tr\u00e1nh tuy\u1ec7t \u0111\u1ed1i vi\u1ec7c k\u00e9o gi\u00e3n (stretch) h\u00ecnh: Kh\u00f4ng n\u00ean ch\u1ecdn ch\u1ebf \u0111\u1ed9 \u00e9p ph\u1eb3ng\/k\u00e9o gi\u00e3n h\u00ecnh \u1ea3nh \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y m\u00e0n h\u00ecnh b\u1eb1ng m\u1ecdi gi\u00e1 v\u00ec s\u1ebd l\u00e0m nh\u00e2n v\u1eadt, v\u1eadt th\u1ec3 b\u1ecb m\u00e9o m\u00f3, bi\u1ebfn d\u1ea1ng r\u1ea5t m\u1ea5t t\u1ef1 nhi\u00ean.<\/li>\n<li>C\u00e2n nh\u1eafc th\u00f3i quen khi mua thi\u1ebft b\u1ecb: Lu\u00f4n ch\u1ecdn thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng d\u1ef1a tr\u00ean th\u00f3i quen gi\u1ea3i tr\u00ed th\u01b0\u1eddng nh\u1eadt \u0111\u1ec3 c\u00f3 kh\u00f4ng gian hi\u1ec3n th\u1ecb t\u1ed1i \u0111a.<\/li>\n<\/ol>\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/chup-anh-the-gan-day\/\">Ch\u1ee5p \u1ea2nh Th\u1ebb G\u1ea7n \u0110\u00e2y: T\u00ecm Ti\u1ec7m Uy T\u00edn V\u00e0 C\u00e1ch T\u1ef1 Ch\u1ee5p \u0110\u1eb9p<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-576338 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-5.jpg\" alt=\"aspect-ratio-la-gi-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/aspect-ratio-la-gi-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 aspect ratio<\/h2>\n<h3>Aspect ratio l\u00e0 g\u00ec?<\/h3>\n<p>L\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a m\u00e0n h\u00ecnh, h\u00ecnh \u1ea3nh ho\u1eb7c video (v\u00ed d\u1ee5 16:9).<\/p>\n<h3>16:9 ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n<p>Ngh\u0129a l\u00e0 c\u1ee9 16 ph\u1ea7n chi\u1ec1u r\u1ed9ng th\u00ec c\u00f3 9 ph\u1ea7n chi\u1ec1u cao \u2013 t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh r\u1ed9ng ph\u1ed5 bi\u1ebfn.<\/p>\n<h3>C\u00e1c t\u1ef7 l\u1ec7 khung h\u00ecnh ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec?<\/h3>\n<p>16:9, 4:3, 21:9, 1:1 (vu\u00f4ng) v\u00e0 9:16 (d\u1ecdc cho video ng\u1eafn).<\/p>\n<h3>V\u00ec sao video c\u00f3 vi\u1ec1n \u0111en hai b\u00ean?<\/h3>\n<p>V\u00ec t\u1ef7 l\u1ec7 khung h\u00ecnh c\u1ee7a video kh\u00e1c v\u1edbi t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh, n\u00ean xu\u1ea5t hi\u1ec7n vi\u1ec1n \u0111\u1ec3 gi\u1eef nguy\u00ean h\u00ecnh.<\/p>\n<h3>\u0110i\u1ec7n tho\u1ea1i th\u01b0\u1eddng c\u00f3 t\u1ef7 l\u1ec7 n\u00e0o?<\/h3>\n<p>Nhi\u1ec1u m\u00e1y hi\u1ec7n nay d\u00f9ng t\u1ef7 l\u1ec7 d\u00e0i nh\u01b0 20:9, 19.5:9 gi\u00fap m\u00e0n thon d\u00e0i, hi\u1ec3n th\u1ecb nhi\u1ec1u n\u1ed9i dung.<\/p>\n<h3>T\u1ef7 l\u1ec7 n\u00e0o cho video TikTok?<\/h3>\n<p>Video d\u1ecdc 9:16 ph\u00f9 h\u1ee3p v\u1edbi TikTok, Reels v\u00e0 Stories.<\/p>\n<h3>T\u1ef7 l\u1ec7 21:9 d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h3>\n<p>L\u00e0 t\u1ef7 l\u1ec7 si\u00eau r\u1ed9ng (ultrawide) d\u00f9ng cho phim \u0111i\u1ec7n \u1ea3nh v\u00e0 m\u1ed9t s\u1ed1 m\u00e0n h\u00ecnh ch\u01a1i game.<\/p>\n<h3>C\u00f3 n\u00ean ph\u00f3ng to video cho l\u1ea5p \u0111\u1ea7y m\u00e0n h\u00ecnh kh\u00f4ng?<\/h3>\n<p>T\u00f9y; ph\u00f3ng to l\u1ea5p \u0111\u1ea7y s\u1ebd c\u1eaft b\u1edbt m\u1ed9t ph\u1ea7n h\u00ecnh, c\u00f2n gi\u1eef nguy\u00ean t\u1ef7 l\u1ec7 th\u00ec c\u00f3 vi\u1ec1n nh\u01b0ng kh\u00f4ng m\u1ea5t h\u00ecnh.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>T\u00f3m l\u1ea1i, aspect ratio l\u00e0 t\u1ef7 l\u1ec7 khung h\u00ecnh gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao \u2013 quy\u1ebft \u0111\u1ecbnh h\u00ecnh d\u1ea1ng m\u00e0n h\u00ecnh, \u1ea3nh, video v\u00e0 tr\u1ea3i nghi\u1ec7m hi\u1ec3n th\u1ecb. Hi\u1ec3u v\u1ec1 t\u1ef7 l\u1ec7 khung h\u00ecnh gi\u00fap b\u1ea1n ch\u1ecdn thi\u1ebft b\u1ecb v\u00e0 t\u1ea1o, xem n\u1ed9i dung ph\u00f9 h\u1ee3p h\u01a1n. M\u1eddi b\u1ea1n tham kh\u1ea3o th\u00eam c\u00e1c thu\u1eadt ng\u1eef li\u00ean quan nh\u01b0 <strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/pixel-la-gi\/\">Pixel l\u00e0 g\u00ec<\/a>, <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/refresh-rate-la-gi\/\">Refresh rate l\u00e0 g\u00ec<\/a><\/strong> v\u00e0 <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/nen-mua-tivi-oled-hay-qled\/\"><strong>OLED l\u00e0 g\u00ec<\/strong><\/a> tr\u00ean chuy\u00ean m\u1ee5c tin t\u1ee9c c\u1ee7a <strong><a href=\"https:\/\/hoanghamobile.com\/\">Ho\u00e0ng H\u00e0 Mobile<\/a><\/strong>.<br \/>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Aspect ratio l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"L\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a m\u00e0n h\u00ecnh, h\u00ecnh \u1ea3nh ho\u1eb7c video (v\u00ed d\u1ee5 16:9).\"}},{\"@type\":\"Question\",\"name\":\"16:9 ngh\u0129a l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Ngh\u0129a l\u00e0 c\u1ee9 16 ph\u1ea7n chi\u1ec1u r\u1ed9ng th\u00ec c\u00f3 9 ph\u1ea7n chi\u1ec1u cao \u2013 t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh r\u1ed9ng ph\u1ed5 bi\u1ebfn.\"}},{\"@type\":\"Question\",\"name\":\"C\u00e1c t\u1ef7 l\u1ec7 khung h\u00ecnh ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"16:9, 4:3, 21:9, 1:1 (vu\u00f4ng) v\u00e0 9:16 (d\u1ecdc cho video ng\u1eafn).\"}},{\"@type\":\"Question\",\"name\":\"V\u00ec sao video c\u00f3 vi\u1ec1n \u0111en hai b\u00ean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"V\u00ec t\u1ef7 l\u1ec7 khung h\u00ecnh c\u1ee7a video kh\u00e1c v\u1edbi t\u1ef7 l\u1ec7 m\u00e0n h\u00ecnh, n\u00ean xu\u1ea5t hi\u1ec7n vi\u1ec1n \u0111\u1ec3 gi\u1eef nguy\u00ean h\u00ecnh.\"}},{\"@type\":\"Question\",\"name\":\"\u0110i\u1ec7n tho\u1ea1i th\u01b0\u1eddng c\u00f3 t\u1ef7 l\u1ec7 n\u00e0o?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Nhi\u1ec1u m\u00e1y hi\u1ec7n nay d\u00f9ng t\u1ef7 l\u1ec7 d\u00e0i nh\u01b0 20:9, 19.5:9 gi\u00fap m\u00e0n thon d\u00e0i, hi\u1ec3n th\u1ecb nhi\u1ec1u n\u1ed9i dung.\"}},{\"@type\":\"Question\",\"name\":\"T\u1ef7 l\u1ec7 n\u00e0o cho video TikTok?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Video d\u1ecdc 9:16 ph\u00f9 h\u1ee3p v\u1edbi TikTok, Reels v\u00e0 Stories.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aspect ratio (t\u1ef7 l\u1ec7 khung h\u00ecnh) l\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao c\u1ee7a m\u1ed9t m\u00e0n h\u00ecnh, h\u00ecnh \u1ea3nh ho\u1eb7c video. V\u00ed d\u1ee5, t\u1ef7 l\u1ec7 16:9 ngh\u0129a l\u00e0 \u1ee9ng v\u1edbi 16 ph\u1ea7n chi\u1ec1u r\u1ed9ng s\u1ebd c\u00f3 9 ph\u1ea7n chi\u1ec1u cao t\u01b0\u01a1ng \u1ee9ng. Aspect ratio quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp \u0111\u1ebfn h\u00ecnh d\u1ea1ng c\u1ee7a khung [&hellip;]<\/p>\n","protected":false},"author":65,"featured_media":576333,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"aspect ratio l\u00e0 g\u00ec","_yoast_wpseo_title":"Aspect ratio l\u00e0 g\u00ec? T\u1ef7 l\u1ec7 khung h\u00ecnh","_yoast_wpseo_metadesc":"Aspect ratio l\u00e0 g\u00ec? Gi\u1ea3i th\u00edch t\u1ef7 l\u1ec7 khung h\u00ecnh 16:9, 4:3, 21:9 v\u00e0 c\u00e1ch ch\u1ecdn t\u1ef7 l\u1ec7 ph\u00f9 h\u1ee3p cho m\u00e0n h\u00ecnh, video. 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