{"id":27071,"date":"2018-12-26T11:01:28","date_gmt":"2018-12-26T04:01:28","guid":{"rendered":"https:\/\/tmp.phongvu.vn\/?p=27071"},"modified":"2018-12-27T11:46:42","modified_gmt":"2018-12-27T04:46:42","slug":"1702769","status":"publish","type":"post","link":"https:\/\/tmp.phongvu.vn\/hoi-dap\/1702769\/","title":{"rendered":"1702769"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u v\u00e0 \u0111\u00e1nh gi\u00e1 chi ti\u1ebft M\u00e0n h\u00ecnh LCD Dell 25” U2518D<\/strong><\/h2>\n

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M\u00e0n h\u00ecnh LCD Dell 25” U2518D c\u00f3 ch\u0103ng s\u1ebd kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t so v\u1edbi d\u00f2ng H tr\u01b0\u1edbc \u0111\u00e2y?<\/strong><\/h3>\n

N\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t ng\u01b0\u1eddi y\u00eau th\u00edch c\u00e1c d\u00f2ng m\u00e0n h\u00ecnh c\u1ee7a Dell th\u00ec ch\u1eafc h\u1eb3n s\u1ebd kh\u00f4ng l\u1ea1 g\u00ec v\u1edbi chi\u1ebfc m\u00e0n h\u00ecnh UltraSharp U2515H \u0111\u00e3 \u0111\u01b0\u1ee3c Dell cho ra m\u1eaft m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. M\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00e1 l\u1ea1 25″, m\u1ee5c \u0111\u00edch c\u1ee7a Dell l\u00e0 s\u1ebd d\u00f9ng chi\u1ebfc m\u00e0n h\u00ecnh n\u00e0y \u0111\u1ec3 th\u00eam v\u00e0o kho\u1ea3ng tr\u1ed1ng gi\u1eefa nh\u1eefng chi\u1ebfc m\u00e0n h\u00ecnh 24″ nh\u01b0 U2414H v\u00e0 27″ nh\u01b0 U2715H nh\u01b0ng v\u1eabn cho ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi U2715H. V\u00e0o th\u1eddi \u0111i\u1ec3m \u0111\u1ea7u khi U2515H ra m\u1eaft, c\u00f3 r\u1ea5t nhi\u1ec1u \u00fd ki\u1ebfn tr\u00e1i chi\u1ec1u v\u1ec1 chi\u1ebfc m\u00e0n h\u00ecnh n\u00e0y, li\u1ec7u \u0111\u00e2y c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111i \u0111\u00fang \u0111\u1eafn c\u1ee7a Dell khi cho ra m\u1eaft m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i WQHD (2560 x 1440) v\u1edbi m\u1ed9t k\u00edch th\u01b0\u1edbc ch\u1ec9 v\u1ebbn v\u1eb9n 25″ nh\u01b0 v\u1eady. Tuy nhi\u00ean, qua nhi\u1ec1u qu\u00e1 tr\u00ecnh ki\u1ec3m tra th\u1ef1c t\u1ebf, kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb c\u1ee7a Dell U2515H l\u00e0 t\u1ed1t, th\u1eadm ch\u00ed c\u00f2n c\u00f3 ph\u1ea7n tr\u1ed9i h\u01a1n so v\u1edbi U2715H. C\u00f9ng v\u1edbi gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n khi\u1ebfn cho U2515H tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn c\u1ee7a r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng mu\u1ed1n s\u1edf h\u1eefu m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i WQHD (2560 x 1440) v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb t\u1ed1t c\u0169ng nh\u01b0 kh\u00f4ng qu\u00e1 l\u1edbn nh\u01b0 nh\u1eefng chi\u1ebfc m\u00e0n h\u00ecnh c\u00f3 k\u00edch th\u01b0\u1edbc 27″ nh\u01b0 U2715H.<\/p>\n

Nh\u1eadn ra nhu c\u1ea7u s\u1eed d\u1ee5ng \u1edf ph\u00e2n kh\u00fac m\u00e0n h\u00ecnh v\u1edbi k\u00edch th\u01b0\u1edbc 25″, Dell v\u1eeba cho ra m\u1eaft m\u1ed9t th\u00e0nh vi\u00ean m\u1edbi trong d\u00f2ng m\u00e0n h\u00ecnh UltraSharp l\u00e0 U2518D, th\u1eeba h\u01b0\u1edfng nh\u1eefng \u0111i\u1ec3m m\u1ea1nh c\u1ee7a U2515H c\u1ed9ng th\u00eam c\u00e1c c\u1ea3i ti\u1ebfn v\u1ec1 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh, v\u1ecb tr\u00ed c\u1ed5ng k\u1ebft n\u1ed1i c\u0169ng nh\u01b0 \u0111\u01b0\u1ee3c trang b\u1ecb th\u00eam t\u00ednh n\u0103ng HDR, v\u1ed1n l\u00e0 xu th\u1ebf c\u1ee7a nh\u1eefng chi\u1ebfc m\u00e0n h\u00ecnh cao c\u1ea5p hi\u1ec7n nay tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/p>\n

 <\/p>\n

Thi\u1ebft k\u1ebf v\u00e0 th\u00f4ng s\u1ed1<\/h3>\n

Th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n<\/h4>\n
    \n
  • K\u00edch th\u01b0\u1edbc: 25″<\/li>\n
  • T\u1ec9 l\u1ec7 m\u00e0n h\u00ecnh: 16:9<\/li>\n
  • \u0110\u1ed9 ph\u00e2n gi\u1ea3i: 2560 x 1440<\/li>\n
  • Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c pixel: ~0.216mm<\/li>\n
  • Th\u1eddi gian ph\u1ea3n h\u1ed3i: 5ms<\/li>\n
  • \u0110\u1ed9 s\u00e1ng: t\u1ed1i \u0111a ~350 cd\/m2 (nit)<\/li>\n
  • \u0110\u1ed9 t\u01b0\u01a1ng ph\u1ea3n: 1000:1<\/li>\n
  • G\u00f3c nh\u00ecn: 178\/178<\/li>\n
  • T\u1ea5m n\u1ec1n s\u1eed d\u1ee5ng: AH-IPS (8-bit)<\/li>\n
  • C\u00f4ng ngh\u1ec7 backlight: W-LED<\/li>\n
  • \u0110\u1ed9 s\u00e2u c\u1ee7a m\u00e0u: ~16.7 tri\u1ec7u m\u00e0u<\/li>\n
  • T\u1ea7n s\u1ed1 qu\u00e9t: 60Hz<\/li>\n
  • L\u1edbp ph\u00f9 tr\u00ean m\u00e0n h\u00ecnh: l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00f3i 3H<\/li>\n
  • C\u00e1c c\u1ed5ng k\u1ebft n\u1ed1i: 2 c\u1ed5ng s\u1ea1c USB 3.0 (5V\/2A), 2 c\u1ed5ng USB 3.0 (\u0111\u1ec3 c\u1eafm thi\u1ebft b\u1ecb), 1 c\u1ed5ng USB 3.0 (\u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh), 1 c\u1ed5ng HDMI 2.0, 1 c\u1ed5ng DisplayPort 1.2, 1 c\u1ed5ng Mini DisplayPort 1.2, m\u1ed9t c\u1ed5ng DisplayPort 1.2 (d\u00f9ng \u0111\u1ec3 xu\u1ea5t ra nhi\u1ec1u m\u00e0n h\u00ecnh), 1 c\u1ed5ng audio 3.5mm.<\/li>\n
  • K\u00edch th\u01b0\u1edbc: 567.6 x 200 x 527.x mm<\/li>\n
  • Kh\u1ed1i l\u01b0\u1ee3ng: 6.24 kg (t\u00ednh c\u1ea3 d\u00e2y v\u00e0 \u0111\u1ebf m\u00e0n h\u00ecnh)<\/li>\n<\/ul>\n

     <\/p>\n

    Thi\u1ebft k\u1ebf<\/h4>\n

    M\u00e0u s\u1eafc ch\u1ee7 \u0111\u1ea1o trong thi\u1ebft k\u1ebf c\u1ee7a m\u00e0n h\u00ecnh Dell U2518D l\u00e0 \u0111en v\u00e0 b\u1ea1c. V\u1edbi ph\u1ea7n vi\u1ec1n kh\u00e1 m\u1ecfng, ch\u1ec9 ~7mm \u0111\u1ed1i v\u1edbi 2 vi\u1ec1n b\u00ean h\u00f4ng v\u00e0 ph\u00eda tr\u00ean, c\u00f2n vi\u1ec1n b\u00ean d\u01b0\u1edbi s\u1ebd l\u00e0 15mm cho ph\u00e9p m\u00e0n h\u00ecnh chi\u1ebfm ~90% di\u1ec7n t\u00edch c\u1ee7a m\u1eb7t tr\u01b0\u1edbc, \u0111i\u1ec1u n\u00e0y gi\u00fap cho vi\u1ec7c gh\u00e9p nhi\u1ec1u m\u00e0n h\u00ecnh l\u1ea1i v\u1edbi nhau \u0111\u1ec3 m\u1edf r\u1ed9ng kh\u00f4ng gian tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n, ng\u01b0\u1eddi d\u00f9ng s\u1ebd tho\u1ea3i m\u00e1i v\u1edbi ph\u1ea7n n\u1ed9i dung hi\u1ec3n th\u1ecb th\u00eam li\u1ec1n m\u1ea1ch gi\u1eefa c\u00e1c m\u00e0n h\u00ecnh. Ph\u1ea7n v\u1ecf b\u00ean ngo\u00e0i c\u1ee7a m\u00e0n h\u00ecnh v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1eb1ng ch\u1ea5t li\u1ec7u nh\u1ef1a nh\u00e1m m\u00e0u \u0111en v\u00e0 b\u1ea1c cho c\u1ea3m gi\u00e1c sang tr\u1ecdng, k\u1ebft h\u1ee3p v\u1edbi ph\u1ea7n khung b\u00ean trong \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p \u0111em l\u1ea1i c\u1ea3m gi\u00e1c ch\u1eafc ch\u1eafn gi\u1ed1ng nh\u01b0 ph\u1ea7n l\u1edbn c\u00e1c m\u00e0n h\u00ecnh UltraSharp kh\u00e1c c\u1ee7a Dell.<\/p>\n

    \"M\u00e0n<\/p>\n

     <\/p>\n

    \"M\u00e0n<\/p>\n

    \n
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    \n
    \n
    \n
    \n
    \n

    Ph\u1ea7n vi\u1ec1n c\u00f3 \u0111\u1ed9 d\u00e0y ch\u1ec9 ~7mm<\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

    <\/div>\n<\/div>\n<\/div>\n<\/section>\n

    Kh\u00e1c v\u1edbi v\u1edbi th\u1ebf h\u1ec7 \u0111\u00e0n anh \u0111i tr\u01b0\u1edbc, Dell U2518D kh\u00f4ng c\u00f2n s\u1eed d\u1ee5ng m\u1ed9t m\u00e0u \u0111en th\u1ed1ng nh\u1ea5t nh\u01b0 U2515H m\u00e0 thay v\u00e0o \u0111\u00f3 l\u00e0 s\u1ef1 h\u00f2a quy\u1ec7n 2 t\u00f4ng m\u00e0u l\u00e0 b\u1ea1c v\u00e0 \u0111en t\u1ea1o c\u1ea3m gi\u00e1c ph\u1ea7n m\u1ec1m m\u1ea1i v\u00e0 tinh t\u1ebf h\u01a1n, th\u1ec3 hi\u1ec7n r\u00f5 nh\u1ea5t l\u00e0 \u1edf ph\u1ea7n ch\u00e2n \u0111\u1ebf kh\u00f4ng c\u00f2n b\u1ecb c\u1ea3m gi\u00e1c kh\u00e1 th\u00f4 khi nh\u00ecn v\u00e0o nh\u01b0 U2515H.<\/p>\n

    \"M\u00e0n<\/p>\n

    N\u1ebfu \u0111\u1ec3 \u00fd k\u0129 h\u01a1n c\u00f3 th\u1ec3 th\u1ea5y ph\u1ea7n ch\u00e2n tr\u1ee5 c\u0169ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u1ea1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng n\u00e9t vu\u00f4ng v\u1eafn h\u01a1n, v\u1edbi ph\u1ea7n logo \u0111\u01b0\u1ee3c di chuy\u1ec3n sang m\u1eb7t sau c\u1ee7a ch\u00e2n tr\u1ee5 t\u1ea1o c\u1ea3m gi\u00e1c c\u1ee9ng c\u00e1p h\u01a1n so v\u1edbi ch\u00e2n tr\u1ee5 c\u0169 c\u1ee7a U2515H.<\/p>\n

    \"M\u00e0n<\/p>\n

    Ph\u1ea7n \u0111\u1ebf c\u1ee7a m\u00e0n h\u00ecnh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u00e0u b\u1ea1c gi\u1ed1ng nh\u01b0 c\u00e1c th\u1ebf h\u1ec7 tr\u01b0\u1edbc, gi\u00fap t\u0103ng \u0111i\u1ec3m nh\u1ea5n thi\u1ebft k\u1ebf c\u1ee7a chi\u1ebfc m\u00e0n h\u00ecnh l\u00ean. V\u1edbi k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi U2515H, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00e2n b\u1eb1ng v\u1edbi t\u1ed5ng k\u00edch th\u01b0\u1edbc c\u1ee7a m\u00e0n h\u00ecnh, c\u0169ng nh\u01b0 ch\u00e2n \u0111\u1ebf b\u1eb1ng cao v\u00e0 ph\u1ea7n kh\u1edbp n\u1ed1i gi\u1eefa m\u00e0n h\u00ecnh v\u1edbi \u0111\u1ebf ch\u1eafc ch\u1eafn gi\u00fap cho m\u00e0n h\u00ecnh c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ee9ng r\u1ea5t v\u1eefng m\u1ed9t khi \u0111\u00e3 l\u1eafp \u0111\u1eb7t xong.<\/p>\n

    \"M\u00e0n<\/p>\n

    Ch\u00e2n \u0111\u1ebf c\u1ee7a U2518D<\/em><\/p>\n

     <\/p>\n

    \"M\u00e0n<\/p>\n

    Ph\u1ea7n kh\u1edbp n\u1ed1i gi\u1eefa m\u00e0n h\u00ecnh v\u00e0 ch\u00e2n tr\u1ee5 c\u1ee7a U2518D<\/em><\/p>\n

    V\u1ec1 ph\u1ea7n \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao c\u1ee7a m\u00e0n h\u00ecnh, ph\u1ea7n \u0111\u1ebf c\u1ee7a Dell U2518D cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh kho\u1ea3ng c\u00e1ch gi\u1eefa \u0111\u1ed9 cao t\u1ed1i \u0111a v\u00e0 \u0111\u1ed9 cao t\u1ed1i thi\u1ec3u x\u1ea5p x\u1ec9 130mm. \u0110\u1ed9 nghi\u00eang, c\u0169ng nh\u01b0 xoay c\u1ee7a m\u00e0n h\u00ecnh \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh kh\u00e1 d\u1ec5 d\u00e0ng v\u00e0 ch\u1eafc ch\u1eafn.<\/p>\n

    \"M\u00e0n<\/em><\/p>\n

    M\u1ed9t \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u00e1c n\u00fat \u0111i\u1ec1u ch\u1ec9nh m\u00e0n h\u00ecnh v\u00e0 n\u00fat ngu\u1ed3n c\u1ee7a Dell U2518D l\u1ea1i l\u00e0 n\u00fat c\u1ee9ng thay v\u00ec n\u00fat c\u1ea3m \u1ee9ng nh\u01b0 c\u00e1c d\u00f2ng UltraSharp tr\u01b0\u1edbc \u0111\u00e2y, \u0111i\u1ec1u n\u00e0y th\u00ec s\u1ebd t\u00f9y theo s\u1edf th\u00edch c\u1ee7a m\u1ed7i ng\u01b0\u1eddi, tuy nhi\u00ean v\u1eabn s\u1ebd c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi th\u00edch s\u1eed d\u1ee5ng n\u00fat c\u1ea3m \u1ee9ng h\u01a1n.<\/p>\n

    \"M\u00e0n<\/p>\n

     <\/p>\n

    C\u00e1c c\u1ed5ng k\u1ebft n\u1ed1i<\/h4>\n

    C\u00e1c c\u1ed5ng k\u1ebft n\u1ed1i ch\u00ednh (HDMI, DisplayPort, ngu\u1ed3n..) c\u0169ng nh\u01b0 c\u00e1c k\u1ebft n\u1ed9i ph\u1ee5 (USB) \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf ph\u1ea7n m\u1eb7t sau c\u1ee7a m\u00e0n h\u00ecnh nh\u01b0ng \u0111\u1ed1i v\u1edbi Dell U2518D s\u1ebd kh\u00f4ng c\u00f2n n\u1eafp nh\u1ef1a \u0111\u1ec3 che \u0111i c\u00e1c c\u1ed5ng k\u1ebft n\u1ed1i n\u00e0y, m\u1ed9t khuy\u1ebft \u0111i\u1ec3m kh\u00e1 \u0111\u00e1ng ti\u1ebfc.<\/p>\n

    \"M\u00e0n<\/p>\n

    Tuy nhi\u00ean m\u1ed9t trong nh\u1eefng c\u1ea3i thi\u1ec7n \u0111\u00e1ng gi\u00e1 nh\u1ea5t tr\u00ean U2518D, \u0111i\u1ec1u khi\u1ebfn cho r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u00e1c m\u00e0n h\u00ecnh UltraSharp tr\u01b0\u1edbc \u0111\u00e2y c\u1ee7a Dell c\u1ea3m th\u1ea5y kh\u00f3 ch\u1ecbu, \u0111\u00f3 ch\u00ednh l\u00e0 v\u1ecb tr\u00ed c\u1ee7a c\u1ed5ng USB. Thay v\u00ec \u0111\u1eb7t h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng USB \u1edf ph\u00eda sau c\u1ee7a m\u00e0n h\u00ecnh nh\u01b0 tr\u01b0\u1edbc \u0111\u00e2y, c\u00e1c c\u1ed5ng USB tr\u00ean U2518D \u0111\u01b0\u1ee3c di chuy\u1ec3n sang ph\u1ea7n c\u1ea1nh b\u00ean tr\u00e1i ph\u00eda d\u01b0\u1edbi c\u1ee7a m\u00e0n h\u00ecnh, vi\u1ec7c n\u00e0y s\u1ebd gi\u00fap cho vi\u1ec7c k\u1ebft n\u1ed1i th\u00eam c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi tr\u1edf n\u00ean d\u1ec5 d\u00e0ng v\u00e0 thu\u1eadn ti\u1ec7n h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n

    \"M\u00e0n<\/p>\n

    Ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb c\u1ee7a m\u00e0n h\u00ecnh<\/h3>\n

    Tr\u00ean m\u00e0n h\u00ecnh c\u1ee7a U2518D \u0111\u01b0\u1ee3c ph\u1ee7 m\u1ed9t l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00f3i 3H \u0111em l\u1ea1i kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb ng\u01b0\u1ee3c s\u00e1ng r\u1ea5t t\u1ed1t c\u0169ng nh\u01b0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng t\u1edbi ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh. V\u1ec1 ph\u1ea7n blacklight th\u00ec U2518D v\u1eabn s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 W-LED (White LED), nh\u1eb1m vi\u1ec7c gi\u1ea3m c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 xu\u1ed1ng \u0111\u1ed3ng th\u01a1i cho ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb m\u00e0u s\u1eafc r\u1ea5t t\u1ed1t (\u0111\u1ea1t 99% tr\u00ean thang m\u00e0u sRGB), nh\u01b0ng n\u1ebfu ng\u01b0\u1eddi s\u1eed d\u1ee5ng mu\u1ed1n c\u00f3 gi\u1ea3i gam m\u00e0u r\u1ed9ng h\u01a1n th\u00ec n\u00ean c\u00e2n nh\u1eafc c\u00e1c l\u1ef1a ch\u1ecdn kh\u00e1c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GB-rLED backlight.<\/p>\n

    \"M\u00e0n<\/p>\n

    V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh, U2518D \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee7a th\u1ebf h\u1ec7 \u0111\u00e0n anh U2515H, m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 kh\u00e1 cao v\u1edbi nh\u1eefng g\u00ec m\u00e0 n\u00f3 \u0111em l\u1ea1i v\u1edbi gi\u00e1 ti\u1ec1n c\u0169ng nh\u01b0 k\u00edch th\u01b0\u1edbc c\u1ee7a m\u00ecnh, th\u1eadt s\u1ef1 r\u1ea5t kh\u00f3 c\u00f3 th\u1ec3 ph\u00e0n n\u00e0n v\u1ec1 chi\u1ebfc m\u00e0n h\u00ecnh n\u00e0y ngo\u1ea1i tr\u1eeb vi\u1ec7c v\u1eabn s\u1eed d\u1ee5ng t\u1ea5m n\u1ec1n IPS, tuy nhi\u00ean ch\u00ednh vi\u1ec7c s\u1eed d\u1ee5ng t\u1ea5m n\u1ec1n IPS l\u1ea1i cho ch\u1ea5t l\u01b0\u1ee3ng m\u00e0u s\u1eafc tr\u00ean c\u00e1c m\u00e0n h\u00ecnh UltraSharp c\u1ee7a Dell n\u00f3i chung r\u1ea5t ch\u00ednh x\u00e1c v\u00e0 ch\u00e2n th\u1ef1c. C\u1ed9ng th\u00eam vi\u1ec7c U2518D \u0111\u01b0\u1ee3c trang b\u1ecb th\u00eam t\u00ednh n\u0103ng HDR h\u1ee9a h\u1eb9n s\u1ebd \u0111em l\u1ea1i cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng m\u1ed9t tr\u1ea3i nghi\u1ec7m ho\u00e0n to\u00e0n m\u1edbi l\u1ea1.<\/p>\n

    V\u1eady t\u00ednh n\u0103ng HDR l\u00e0 g\u00ec?<\/strong><\/h4>\n

    HDR (High Dynamic Range) l\u00e0 m\u1ed9t t\u00ednh n\u0103ng th\u01b0\u1eddng th\u1ea5y trong c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan t\u1edbi nhi\u1ebfp \u1ea3nh, t\u00ednh n\u0103ng n\u00e0y s\u1ebd t\u00e1i t\u1ea1o l\u1ea1i d\u1ea3i \u0111\u1ed9 s\u00e1ng \u0111\u1ed9 s\u00e1ng t\u1ed1t h\u01a1n so v\u1edbi th\u00f4ng th\u01b0\u1eddng SDR (Standard Dynamic Range), gi\u00fap c\u00e2n b\u1eb1ng \u0111\u1ed9 s\u00e1ng gi\u1eefa c\u00e1c v\u00f9ng s\u00e1ng v\u00e0 c\u00e1c v\u00f9ng t\u1ed1i c\u1ee7a m\u1ed9t t\u1ea5m h\u00ecnh, lo\u1ea1i b\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 \u1edf v\u00f9ng s\u00e1ng th\u00ec s\u1ebd s\u00e1ng qu\u00e1 d\u1eabn t\u1edbi m\u1ea5t chi ti\u1ebft c\u0169ng nh\u01b0 v\u00f9ng t\u1ed1i th\u00ec l\u1ea1i t\u1ed1i qu\u00e1 d\u1eabn t\u1edbi c\u00e1c chi ti\u1ebft kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap t\u1ea5m h\u00ecnh \u0111em l\u1ea1i \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb g\u1ea7n s\u00e1t v\u1edbi nh\u1eefng g\u00ec m\u00e0 m\u1eaft ng\u01b0\u1eddi quan s\u00e1t \u0111\u01b0\u1ee3c trong th\u1ef1c t\u1ebf nh\u1ea5t.<\/p>\n

    \u0110\u1ed1i v\u1edbi tr\u00ean m\u00e0n h\u00ecnh, t\u00ednh n\u0103ng HDR ho\u1ea1t \u0111\u1ed9ng c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 trong nhi\u1ebfp \u1ea3nh, cho ph\u00e9p m\u00e0n h\u00ecnh c\u00f3 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb t\u1ed1t c\u00e1c v\u00f9ng s\u00e1ng v\u00e0 c\u00e1c v\u00f9ng t\u1ed1i v\u1edbi \u0111\u1ed9 chi ti\u1ebft cao trong c\u00f9ng m\u1ed9t khung h\u00ecnh, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t gi\u1eefa c\u00e1c v\u00f9ng b\u00f3ng c\u00f3 \u0111\u1ed9 \u0111\u1eadm kh\u00e1c nhau, t\u1eeb \u0111\u00f3 gi\u00fap t\u0103ng \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n c\u1ee7a m\u00e0n h\u00ecnh l\u00ean r\u00f5 r\u1ec7t. Kh\u00f4ng nh\u1eefng th\u1ebf \u0111\u1ed1i v\u1edbi c\u00e1c m\u00e0n h\u00ecnh c\u00f3 \u0111\u1ed9 s\u00e1ng cao (l\u1edbn h\u01a1n 400 cd\/m2), t\u00ednh n\u0103ng HDR s\u1ebd cho c\u00e1c chi ti\u1ebft v\u1edbi \u0111\u1ed9 s\u00e1ng l\u1edbn \u0111\u01b0\u1ee3c n\u1ed5i b\u1eadt l\u00ean h\u1eb3n, c\u0169ng nh\u01b0 s\u1edf h\u1eefu c\u00e1c t\u1ea5m n\u1ec1n 10-bit c\u0169ng l\u00e0 m\u1ed9t \u0111i\u1ec3m \u0111\u01b0\u1ee3c t\u00ednh n\u0103ng n\u00e0y \u01b0u \u00e1i.<\/p>\n

    M\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd l\u00e0 kh\u00f4ng ph\u1ea3i b\u1ea5t k\u00ec n\u1ed9i dung gi\u1ea3i tr\u00ed nh\u01b0 phim hay game n\u00e0o c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng HDR cho n\u00ean \u0111\u1ec3 tr\u1ea3i nghi\u1ec7m t\u00ednh n\u0103ng n\u00e0y, b\u1ea1n c\u0169ng c\u1ea7n ph\u1ea3i l\u01b0u \u00fd xem n\u1ed9i dung m\u00ecnh mu\u1ed1n tr\u1ea3i nghi\u1ec7m c\u00f3 h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng n\u00e0y kh\u00f4ng \u0111\u00e3 nh\u00e9.<\/p>\n

    \"M\u00e0n<\/p>\n

    Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb c\u1ee7a m\u00e0n h\u00ecnh<\/h3>\n

    M\u1ed9t \u0111i\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c l\u01b0u \u00fd, h\u1ea7u h\u1ebft ng\u01b0\u1eddi s\u1eed d\u1ee5ng b\u00ecnh th\u01b0\u1eddng mua m\u00e0n h\u00ecnh v\u1ec1 ch\u1ec9 hi\u1ec7u ch\u1ec9nh v\u00e0i b\u01b0\u1edbc c\u01a1 b\u1ea3n trong settings (tuy nhi\u00ean vi\u1ec7c c\u0103n ch\u1ec9nh l\u1ea1i m\u00e0n h\u00ecnh l\u00e0 m\u1ed9t vi\u1ec7c l\u00e0m r\u1ea5t c\u1ea7n thi\u1ebft), v\u00e0 ph\u1ea7n l\u1edbn ng\u01b0\u1eddi s\u1eed d\u1ee5ng ph\u1ed5 th\u00f4ng \u0111\u1ec1u kh\u00f4ng c\u00f3 c\u00e1c thi\u1ebft b\u1ecb \u0111o \u0111\u1ea1c trong tay \u0111\u1ec3 tham chi\u1ebfu n\u00ean c\u00e1c k\u1ebft qu\u1ea3 d\u01b0\u1edbi \u0111\u00e2y s\u1ebd ch\u1ec9 mang t\u00ednh ch\u1ea5t tham chi\u1ebfu \u0111\u1ec3 cho ng\u01b0\u1eddi \u0111\u1ecdc th\u1ea5y kh\u1ea3 n\u0103ng t\u00e1i hi\u1ec7n m\u00e0u s\u1eafc c\u1ee7a m\u00e0n h\u00ecnh ch\u00ednh x\u00e1c t\u1edbi \u0111\u00e2u.<\/p>\n

    C\u00e1c th\u00f4ng s\u1ed1 c\u1ea7n l\u01b0u \u00fd<\/h4>\n
      \n
    • Gamma: Gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh c\u1ee7a c\u00e1c m\u00e0n h\u00ecnh desktop s\u1ebd l\u00e0 2.2<\/li>\n
    • Nhi\u1ec7t \u0111\u1ed9 m\u00e0u\/white point: S\u1ebd l\u1ea5y gi\u00e1 tr\u1ecb 6500k (\u00e1nh s\u00e1ng ban ng\u00e0y) l\u00e0m m\u1ed1c \u0111\u1ec3 tham chi\u1ebfu.<\/li>\n
    • C\u01b0\u1eddng \u0111\u1ed9 s\u00e1ng: Gi\u00e1 tr\u1ecb \u0111\u1ed9 s\u00e1ng m\u1eb7c \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi m\u00e0n h\u00ecnh trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng th\u00f4ng th\u01b0\u1eddng s\u1ebd l\u00e0 120cd\/m2.<\/li>\n
    • \u0110\u1ed9 s\u00e2u c\u1ee7a m\u00e0u \u0111en: Gi\u00e1 tr\u1ecb n\u00e0y c\u00e0ng th\u1ea5p th\u00ec \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n c\u1ee7a m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh s\u1ebd c\u00e0ng cao.<\/li>\n
    • \u0110\u1ed9 t\u01b0\u01a1ng ph\u1ea3n: Gi\u00e1 tr\u1ecb n\u00e0y c\u00e0ng cao th\u00ec m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c hi\u1ec7n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh s\u1ebd c\u00e0ng t\u1ed1t.<\/li>\n
    • H\u1ec7 s\u1ed1 trung b\u00ecnh (Delta-E): th\u1ea5p nh\u1ea5t c\u00f3 th\u1ec3. N\u1ebfu DeltaE >3, m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c m\u00e0n h\u00ecnh t\u00e1i hi\u1ec7n s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ed1t, n\u1ebfu DeltaE <2, m\u00e0u s\u1eafc s\u1ebd \u0111\u01b0\u1ee3c t\u00e1i hi\u1ec7n s\u1ebd kh\u00e1 t\u1ed1t, n\u1ebfu DeltaE<1 c\u00f3 ngh\u0129a l\u00e0 kh\u1ea3 n\u0103ng t\u00e1i hi\u1ec7n m\u00e0u s\u1eafc l\u00e0 r\u1ea5t t\u1ed1t.<\/li>\n<\/ul>\n

      C\u00e1c th\u00f4ng s\u1ed1 hi\u1ec3n th\u1ecb c\u1ee7a m\u00e0n h\u00ecnh<\/h4>\n

      D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u00f4ng s\u1ed1 hi\u1ec3n th\u1ecb \u0111\u01b0\u1ee3c \u0111o l\u1ea1i c\u1ee7a Dell U2518D t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c thi\u1ebft l\u1eadp kh\u00e1c nhau:<\/p>\n

      \"M\u00e0n\u00a0\"M\u00e0n<\/p>\n

      T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1edbi ng\u01b0\u1eddi \u0111\u00e0n anh c\u1ee7a m\u00ecnh l\u00e0 U2515H, kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb v\u1edbi thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh tr\u00ean U2518D l\u00e0 kh\u00e1 t\u1ed1t, th\u1eadm ch\u00ed c\u00f3 ph\u1ea7n c\u1ea3i thi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00e0u khi ch\u1ec9 c\u00f2n 6407k, g\u1ea7n h\u01a1n v\u1edbi gi\u00e1 tr\u1ecb chu\u1ea9n l\u00e0 6500k, \u0111\u1ed1i v\u1edbi U2515H th\u00ec nhi\u1ec7t \u0111\u1ed9 m\u00e0u \u1edf thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh l\u00e0 6626k. Tuy nhi\u00ean m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ea7n l\u01b0u \u00fd \u1edf \u0111\u00e2y l\u00e0 v\u1edbi vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft l\u1eadp RGB th\u1ee7 c\u00f4ng s\u1ebd l\u00e0m cho nhi\u1ec7t \u0111\u1ed9 m\u00e0u t\u0103ng \u0111\u00e1ng k\u1ec3 (6840k). \u1ede \u0111\u00e2y, thi\u1ebft l\u1eadp tr\u00ean U2518D \u0111\u01b0\u1ee3c ch\u1ecdn ra l\u00e0m quy chu\u1ea9n trong b\u00e0i review n\u00e0y s\u1ebd \u0111\u01a1n gi\u1ea3n ch\u1ec9 l\u00e0 thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh v\u1edbi \u0111\u1ed9 s\u00e1ng gi\u1ea3m c\u00f2n 40%.<\/p>\n

      D\u01b0\u1edbi \u0111\u00e2y l\u00e0 bi\u1ec3u \u0111\u1ed3 cho th\u1ea5y s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a gi\u00e1 tr\u1ecb gamma \u0111o \u0111\u01b0\u1ee3c v\u1edbi thi\u1ebft l\u1eadp quy chu\u1ea9n:<\/p>\n

      \"M\u00e0n<\/p>\n

       <\/p>\n

      \u0110\u1ed9 s\u00e1ng v\u00e0 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n<\/h4>\n

      Sau khi \u0111\u01b0\u1ee3c \u0111o \u0111\u1ea1c b\u1edfi c\u00e1c thi\u1ebft b\u1ecb c\u1ea3m bi\u1ebfn quang h\u1ecdc chuy\u00ean d\u1ee5ng, c\u00f3 th\u1ec3 th\u1ed1ng k\u00ea c\u00e1c th\u1ed1ng s\u1ed1 hi\u1ec3n th\u1ecb c\u1ee7a U2518D nh\u01b0 b\u1ea3ng so s\u00e1nh d\u01b0\u1edbi \u0111\u00e2y. Ph\u1ea7n \u0111\u01b0\u1ee3c t\u00f4 xanh l\u00e0 c\u00e1c gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c \u1edf thi\u1ebft l\u1eadp quy chu\u1ea9n, l\u01b0u \u00fd l\u00e0 ch\u1ebf \u0111\u1ed9 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n \u0111\u1ed9ng \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1eaft \u0111i trong qu\u00e1 tr\u00ecnh \u0111o \u0111\u1ea1c.<\/p>\n

      \"M\u00e0n<\/p>\n

      Qua qu\u00e1 tr\u00ecnh \u0111o \u0111\u1ea1c cho th\u1ea5y \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n c\u1ee7a Dell U2518D v\u1edbi thi\u1ebft l\u1eadp quy chu\u1ea9n \u0111\u1ea1t \u0111\u01b0\u1ee3c \u1edf gi\u00e1 tr\u1ecb trung b\u00ecnh l\u00e0 ~950:1, th\u1ea5p h\u01a1n ch\u00fat \u00edt so v\u1edbi U2515H tuy nhi\u00ean \u0111\u00e2y v\u1eabn l\u00e0 m\u1ed9t \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n \u0111\u00fang v\u1edbi mong \u0111\u1ee3i c\u1ee7a m\u1ed9t t\u1ea5m n\u1ec1n IPS. Ngo\u00e0i ra, v\u1edbi thi\u1ebft l\u1eadp \u0111\u1ed9 s\u00e1ng t\u1ed1i \u0111a, \u0111\u1ed9 s\u00e1ng m\u00e0 U2518D c\u00f3 th\u1ec3 hi\u1ec7n th\u1ecb \u0111\u01b0\u1ee3c l\u00e0 370 cd\/m2 (nit), m\u1ed9t con cao h\u01a1n kh\u00e1 nhi\u1ec1u v\u1edbi \u0111\u1ed9 s\u00e1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng b\u00ecnh th\u01b0\u1eddng v\u00e0 \u0111\u1ed9 s\u00e1ng t\u1ed1i thi\u1ebfu ch\u1ec9 29 cd\/m2 (nit), c\u0169ng nh\u01b0 \u0111\u1ed9 s\u00e2u c\u1ee7a m\u00e0u \u0111en \u0111o \u0111\u01b0\u1ee3c l\u00e0 0.17 cd\/m2 (nit), c\u1ea3i thi\u1ec7n ph\u1ea7n n\u00e0o so v\u1edbi U2515H.<\/p>\n

       <\/p>\n

      \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e0u s\u1eafc \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb<\/h4>\n

      \u0110\u01b0\u1ee3c \u0111o \u0111\u1ea1c tr\u00ean gam m\u00e0u sRGB, v\u1edbi thi\u1ebft l\u1eadp quy chu\u1ea9n, t\u1ea5m n\u1ec1n tr\u00ean U2518D bao ph\u1ee7 99% tr\u00ean gam sRGB, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u00e0u s\u1eafc c\u1ee7a chi\u1ebfc m\u00e0n h\u00ecnh n\u00e0y l\u00e0 r\u1ea5t t\u1ed1t \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e1c v\u1ee5 c\u00f4ng vi\u1ec7c c\u0169ng nh\u01b0 gi\u1ea3i tr\u00ed h\u00e0ng ng\u00e0y. Th\u1eadm ch\u00ed v\u1edbi thi\u1ebft l\u1eadp RGB th\u1ee7 c\u00f4ng U2518D c\u00f2n \u0111\u1ea1t \u0111\u01b0\u1ee3c 100% \u0111\u1ed1i v\u1edbi gam m\u00e0u sRGB, tuy nhi\u00ean \u0111i\u1ec1u n\u00e0y s\u1ebd kh\u00f4ng th\u1ef1c s\u1ef1 t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn, c\u0169ng nh\u01b0 \u0111i\u1ec1u n\u00e0y s\u1ebd c\u00f2n t\u00f9y thu\u1ed9c v\u00e0o con m\u1eaft c\u1ee7a m\u1ed7i ng\u01b0\u1eddi.<\/p>\n

      \"M\u00e0n \"M\u00e0n<\/p>\n

      Thi\u1ebft l\u1eadp sRGB quy chu\u1ea9n (tr\u00e1i) v\u00e0 Thi\u1ebft l\u1eadp sRGB th\u1ee7 c\u00f4ng (ph\u1ea3i)<\/em><\/p>\n

      G\u00f3c nh\u00ecn<\/h4>\n

      Vi\u1ec7c s\u1eed d\u1ee5ng t\u1ea5m n\u1ec1n IPS gi\u00fap cho Dell U2518D c\u00f3 m\u1ed9t g\u00f3c nh\u00ecn r\u1ea5t t\u1ed1t, tuy m\u00e0u s\u1eafc v\u1eabn s\u1ebd b\u1ecb thay \u0111\u1ed5i r\u1ea5t nh\u1eb9 khi g\u00f3c nh\u00ecn v\u01b0\u1ee3t qua 45 \u0111\u1ed9, nh\u01b0ng \u0111i\u1ec1u n\u00e0y s\u1ebd r\u1ea5t kh\u00f3 nh\u1eadn ra v\u1edbi c\u00e1c t\u00e1c th\u01b0\u1eddng ng\u00e0y. Th\u00eam n\u1eefa v\u1edbi c\u00e1c \u1ea3nh c\u00f3 n\u1ec1n m\u00e0u t\u1ed1i, vi\u1ec7c nh\u00ecn \u1edf g\u00f3c r\u1ed9ng s\u1ebd cho th\u1ea5y \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n c\u00f3 thay \u0111\u1ed5i m\u1ed9t ch\u00fat \u00edt, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi nh\u00ecn m\u00e0n h\u00ecnh theo chi\u1ec1u d\u1ecdc. Tuy nhi\u00ean, c\u00e1c t\u1ea5m n\u1ec1n IPS \u0111\u1ec1u th\u1ec3 hi\u1ec7n t\u1ed1t g\u00f3c nh\u00ecn c\u0169ng nh\u01b0 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf g\u00f3c nh\u00ecn r\u1ed9ng t\u1ed1t h\u01a1n h\u1eb3n c\u00e1c t\u1ea5m n\u1ec1n nh\u01b0 TN ho\u1eb7c VA.<\/p>\n

      \"M\u00e0n<\/p>\n

      \"M\u00e0n<\/p>\n

      \"M\u00e0n<\/p>\n

      \"M\u00e0n \"M\u00e0n<\/p>\n

       <\/p>\n

      \u0110\u1ed1i v\u1edbi n\u1ec1n \u0111en, tr\u00ean t\u1ea5m n\u1ec1n c\u1ee7a U2518D s\u1ebd xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng “ph\u00e1t s\u00e1ng” th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ebft v\u1edbi t\u00ean g\u1ecdi l\u00e0 “IPS-glow”, \u0111\u00e2y l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng th\u01b0\u1eddng th\u1ea5y c\u1ee7a c\u00e1c m\u00e0n h\u00ecnh s\u1eed d\u1ee5ng t\u1ea5m n\u1ec1n IPS, t\u1ea5m n\u1ec1n c\u00e0ng l\u1edbn th\u00ec hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y s\u1ebd c\u00e0ng r\u00f5. Tuy \u0111\u00e2y l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 m\u00e0 g\u1ea7n nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c t\u1ea5m n\u1ec1n IPS \u0111\u1ec1u g\u1eb7p ph\u1ea3i, nh\u01b0ng v\u1edbi c\u00e1c t\u00e1c v\u1ee5 th\u01b0\u1eddng ng\u00e0y nh\u01b0 l\u00e0m vi\u1ec7c, gi\u1ea3i tr\u00ed, ch\u01a1i game th\u00ec b\u1ea1n s\u1ebd kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng g\u00ec h\u1ebft tr\u1eeb khi tr\u00ean m\u00e0n h\u00ecnh c\u00f3 n\u1ed9i dung m\u00e0u \u0111en v\u00e0 \u0111\u01b0\u1ee3c nh\u00ecn \u1edf m\u1ed9t g\u00f3c kh\u00e1 xi\u00ean. V\u1ea5n \u0111\u1ec1 n\u00e0y \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ea5m n\u1ec1n IPS c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn.<\/p>\n

      \"M\u00e0n<\/p>\n

      T\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a \u00e1nh s\u00e1ng tr\u00ean m\u00e0n h\u00ecnh<\/h4>\n

      \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a \u1ea3nh s\u00e1ng tr\u00ean t\u1ea5m n\u1ec1n, Dell U2518D s\u1ebd \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u01b0\u1eddng \u0111\u1ed9 s\u00e1ng t\u1ea1i 9 v\u1ecb tr\u00ed kh\u00e1c nhau tr\u00ean m\u00e0n h\u00ecnh v\u1edbi \u1ea3nh n\u1ec1n tr\u1eafng v\u1edbi \u0111\u1ed9 s\u00e1ng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp l\u00e0 150 cd\/m2 (nit) \u1edf ph\u1ea7n gi\u1eefa c\u1ee7a m\u00e0n h\u00ecnh v\u00e0 \u0111\u01b0\u1ee3c \u0111o l\u1ea1i b\u1edfi c\u00e1c thi\u1ebft b\u1ecb \u0111o m\u00e0u c\u0169ng nh\u01b0 ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng. C\u0169ng c\u1ea7n l\u01b0u \u00fd th\u00eam vi\u1ec7c \u0111\u1ed3ng nh\u1ea5t c\u1ee7a \u00e1nh s\u00e1ng tr\u00ean m\u00e0n h\u00ecnh s\u1ebd c\u1ecf th\u1ec3 kh\u00e1c nhau gi\u1eefa c\u00e1c m\u00e0n h\u00ecnh v\u1edbi nhau, ngay k\u1ec3 c\u1ea3 l\u00e0 2 m\u00e0n h\u00ecnh \u0111\u1ec1u c\u00f9ng 1 d\u00f2ng s\u1ea3n ph\u1ea9m.<\/p>\n

      \"M\u00e0n<\/p>\n

      Nh\u00ecn chung \u0111\u1ed9 ch\u00eanh l\u1ec7ch \u00e1nh s\u00e1ng gi\u1eefa c\u00e1c v\u1ecb tr\u00ed kh\u00e1c nhau tr\u00ean m\u00e0n h\u00ecnh c\u1ee7a Dell U2518D l\u00e0 r\u1ea5t t\u1ed1t. So v\u1edbi khu v\u1ef1c \u1edf gi\u1eefa m\u00e0n h\u00ecnh v\u1edbi \u0111\u1ed9 s\u00e1ng l\u00e0 152.5 cd\/m2 (nit) th\u00ec \u0111\u1ed9 ch\u00each l\u1ec7ch l\u1edbn nh\u1ea5t ch\u1ec9 \u1edf m\u1ee9c -5%, t\u1ee9c l\u00e0 ~144 cd\/m2 (nit) \u1edf c\u00e1c v\u1ecb tr\u00ed nh\u01b0 g\u00f3c ph\u00eda tr\u00ean b\u00ean ph\u1ea3i c\u0169ng nh\u01b0 ph\u00eda b\u00ean tr\u00e1i c\u1ee7a m\u00e0n h\u00ecnh. Tuy vi\u1ec7c n\u00e0y kh\u00f4ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u t\u1edbi c\u00e1c t\u00e1c v\u1ee5 h\u00e0ng ng\u00e0y, nh\u01b0ng \u0111\u00e2y l\u00e0 m\u1ed9t c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 so v\u1edbi U2515H v\u1edbi \u0111\u1ed9 ch\u00eanh l\u1ec7ch l\u00ean t\u1edbi x\u1ea5p x\u1ec9 20%.<\/p>\n

      V\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng h\u1edf s\u00e1ng tr\u00ean U2518D: Ch\u1ec9 h\u01a1i b\u1ecb h\u1edf s\u00e1ng \u1edf ph\u1ea7n r\u00eca c\u1ea1nh tr\u00e1i c\u1ee7a m\u00e0n h\u00ecnh, th\u1eadm ch\u00ed n\u1ebfu nh\u00ecn l\u01b0\u1edbt qua th\u00ec r\u1ea5t kh\u00f3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n. Tuy nhi\u00ean \u0111\u00e1nh gi\u00e1 n\u00e0y ch\u1ec9 l\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i v\u00ec hi\u1ec7n t\u01b0\u1ee3ng h\u1edf s\u00e1ng s\u1ebd kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t tr\u00ean t\u1eebng m\u00e0n h\u00ecnh kh\u00e1c nhau c\u1ee7a d\u00f2ng n\u00e0y.<\/p>\n

      \"M\u00e0n<\/p>\n

      Th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e0n h\u00ecnh<\/h4>\n

      Qua qu\u00e1 tr\u00ecnh \u0111o \u0111\u1ea1c b\u1eb1ng ph\u1ea7n m\u1ec1m SMTT 2.0 cho th\u1ea5y th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a \u0111i\u1ec3m \u1ea3nh tr\u00ean U2518D v\u00e0o kho\u1ea3ng 5.18 ms \u0111\u1ed1i v\u1edbi c\u1ea3 th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a \u0111i\u1ec3m \u1ea3nh l\u1eabn \u0111\u1ed9 tr\u1ec5. C\u1ea3i thi\u1ec7n r\u1ea5t \u0111\u00e1ng k\u1ec3 so v\u1edbi U2515H v\u1edbi th\u1eddi gian ph\u1ea3n h\u1ed3i ~4.65 ms v\u00e0 \u0111\u1ed9 tr\u1ec5 ~9 ms, nh\u01b0ng n\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t game th\u1ee7 kh\u00f3 t\u00ednh c\u1ee7a t\u1ef1a game b\u1eafn s\u00fang hay e-Sport th\u00ec m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh chuy\u00ean d\u1ee5ng \u0111\u1ec3 ch\u01a1i game v\u1edbi m\u1ed9t t\u1ea5m n\u1ec1n TN s\u1ebd h\u1ee3p l\u00fd h\u01a1n. C\u0169ng c\u1ea7n l\u01b0u \u00fd th\u00eam do trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra b\u1eb1ng ph\u1ea7n m\u1ec1m SMTT, v\u00e0 ph\u1ea7n m\u1ec1m n\u00e0y kh\u00f4ng h\u1ed7 tr\u1ee3 to\u00e0n b\u1ed9 th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a \u0111i\u1ec3m \u1ea3nh \u0111\u1ed1i v\u1edbi tham chi\u1ebfu G2G (th\u1eddi gian \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 \u0111i\u1ec3m \u1ea3nh thay \u0111\u1ed5i m\u00e0u s\u1eafc t\u1eeb m\u00e0u tr\u1eafng sang m\u00e0u \u0111en) n\u00ean k\u1ebft qu\u1ea3 tr\u00ean \u0111\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1eeb b\u1edbt \u0111i 1 ph\u1ea7n th\u1eddi gian ph\u1ea3n h\u1ed3i tr\u00ean tham chi\u1ebfu G2G, t\u1eeb \u0111\u00f3 cho k\u1ebft qu\u1ea3 tham chi\u1ebfu t\u01b0\u01a1ng \u0111\u1ed1i ch\u00ednh x\u00e1c v\u1ec1 \u0111\u1ed9 tr\u1ec5 c\u1ee7a m\u00e0n h\u00ecnh.<\/p>\n

       <\/p>\n

      K\u1ebft<\/h3>\n

      Th\u1eeba h\u01b0\u1edfng nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a U2515H, c\u1ed9ng th\u00eam nh\u1eefng t\u00f9y ch\u1ec9nh k\u1ebft n\u1ed1i c\u0169ng nh\u01b0 v\u1ec1 ph\u1ea7n m\u00e0u s\u1eafc hi\u1ec3n th\u1ecb cho th\u1ea5y Dell U2518D, m\u1eb7c d\u00f9 v\u1eady nh\u1eefng c\u1ea3i thi\u1ec7n v\u1ec1 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb c\u1ee7a U2518D kh\u00f4ng th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n nhi\u1ec1u so v\u1edbi U2515H. Tuy v\u1eady, U2518D v\u1eabn l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn s\u00e1ng gi\u00e1 \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi s\u1eed d\u1ee5ng mu\u1ed1n m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i WQHD v\u1edbi k\u00edch th\u01b0\u1edbc kh\u00f4ng qu\u00e1 l\u1edbn, cho kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u00e0u s\u1eafc xu\u1ea5t s\u1eafc v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh s\u1eafc n\u00e9t c\u00f9ng v\u1edbi t\u00ednh n\u0103ng HDR, ch\u1eafc ch\u1eafn s\u1ebd kh\u00f4ng l\u00e0m th\u1ea5t v\u1ecdng \u0111\u1ed1i v\u1edbi con m\u1eaft c\u1ee7a nhi\u1ec1u ng\u01b0\u1eddi ti\u00eau d\u00f9ng.<\/p>\n

      \u01afu \u0111i\u1ec3m<\/h4>\n
        \n
      • Thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n h\u01a1n so v\u1edbi c\u00e1c d\u00f2ng UltraSharp tr\u01b0\u1edbc \u0111\u00e2y.<\/li>\n
      • Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u00e0u s\u1eafc v\u1edbi thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n so v\u1edbi U2515H.<\/li>\n
      • Ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh c\u0169ng nh\u01b0 \u0111\u1ed9 s\u1eafc n\u00e9t kh\u00f4ng h\u1ec1 k\u00e9m c\u1ea1nh v\u1edbi U2515H v\u1ed1n \u0111\u00e3 l\u00e0 m\u1ed9t chi\u1ebfc m\u00e0n h\u00ecnh kh\u00e1 t\u1ed1t.<\/li>\n
      • C\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7n t\u01b0\u1ee3ng h\u1edf s\u00e1ng c\u0169ng nh\u01b0 \u0111\u1ed9 ch\u00eanh l\u1ec7ch \u00e1nh s\u00e1ng tr\u00ean t\u1ea5m n\u1ec1n so v\u1edbi U2515H.<\/li>\n
      • S\u1edf h\u1eefu t\u00ednh n\u0103ng HDR cho tr\u1ea3i nghi\u1ec7m h\u00ecnh \u1ea3nh c\u0169ng nh\u01b0 m\u00e0u s\u1eafc t\u1ed1t h\u01a1n.<\/li>\n
      • V\u1ecb tr\u00ed c\u1ed5ng k\u1ebft n\u1ed1i USB \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed thu\u1eadn ti\u1ec7n h\u01a1n.<\/li>\n
      • C\u1ea3i thi\u1ec7n th\u1eddi gian \u0111\u1ed9 ph\u1ea3n h\u1ed3i l\u1eabn \u0111\u1ed9 tr\u1ec5 \u0111\u00e1ng k\u1ec3 so v\u1edbi U2515H.<\/li>\n<\/ul>\n

        Khuy\u1ebft \u0111i\u1ec3m<\/h4>\n
          \n
        • Ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tuy v\u1eabn kh\u00e1 t\u1ed1t nh\u01b0ng so v\u1edbi U2515H th\u00ec U2518D ch\u01b0a c\u00f3 c\u1ea3i thi\u1ec7n g\u00ec \u0111\u00e1ng k\u1ec3.<\/li>\n
        • Hi\u1ec7n t\u01b0\u1ee3ng “IPS-glow” ch\u01b0a \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/li>\n
        • T\u00ednh n\u0103ng HDR kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed1i v\u1edbi c\u1ed5ng k\u1ebft n\u1ed1i DisplayPort 1.2, n\u00ean ng\u01b0\u1eddi s\u1eed d\u1ee5ng s\u1ebd ph\u1ea3i mua th\u00eam c\u00e1p k\u1ebft n\u1ed1i HDMI 2.0 \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u00ednh n\u0103ng n\u00e0y.<\/li>\n
        • Vi\u1ec7c tr\u1ea3i nghi\u1ec7m t\u00ednh n\u0103ng HDR c\u00f3 t\u1ed1t hay kh\u00f4ng s\u1ebd c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c \u1ee9ng d\u1ee5ng c\u00f3 h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng n\u00e0y hay kh\u00f4ng.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          Gi\u1edbi thi\u1ec7u v\u00e0 \u0111\u00e1nh gi\u00e1 chi ti\u1ebft M\u00e0n h\u00ecnh LCD Dell 25” U2518D   M\u00e0n h\u00ecnh LCD Dell 25” U2518D c\u00f3 ch\u0103ng s\u1ebd kh\u00e1c bi\u1ec7t r\u00f5...<\/p>\n","protected":false},"author":1,"featured_media":27176,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/27071"}],"collection":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/comments?post=27071"}],"version-history":[{"count":7,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/27071\/revisions"}],"predecessor-version":[{"id":27440,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/27071\/revisions\/27440"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/media\/27176"}],"wp:attachment":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/media?parent=27071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/categories?post=27071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/tags?post=27071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}