{"id":60997,"date":"2022-07-18T08:30:59","date_gmt":"2022-07-18T01:30:59","guid":{"rendered":"https:\/\/ben.com.vn\/tin-tuc\/?p=60997"},"modified":"2022-07-18T08:31:16","modified_gmt":"2022-07-18T01:31:16","slug":"man-hinh-lcd-va-oled-khac-nhau-the-nao","status":"publish","type":"post","link":"https:\/\/ben.com.vn\/tin-tuc\/man-hinh-lcd-va-oled-khac-nhau-the-nao\/","title":{"rendered":"M\u00e0n h\u00ecnh LCD v\u00e0 OLED: kh\u00e1c nhau th\u1ebf n\u00e0o?"},"content":{"rendered":"

Ng\u00e0y nay, khi b\u1ea1n nh\u00ecn th\u1ea5y \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng<\/a> ho\u1eb7c TV, PC, laptop<\/a> c\u00f3 th\u1ec3 n\u00f3 \u0111ang s\u1eed d\u1ee5ng m\u00e0n h\u00ecnh LCD ho\u1eb7c OLED<\/strong>. C\u00f4ng ngh\u1ec7 LCD v\u00e0 OLED \u0111ang th\u1ed1ng tr\u1ecb c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng v\u00e0 TV c\u1ee7a ch\u00fang ta ng\u00e0y nay. Nh\u01b0ng ch\u00fang kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n

\"M\u00e0u<\/p>\n

1. T\u00ecm hi\u1ec3u v\u1ec1 c\u00f4ng ngh\u1ec7 m\u00e0n h\u00ecnh LCD<\/strong><\/h2>\n

LCD vi\u1ebft t\u1eaft c\u1ee7a t\u1eeb Liquid Crystal Display<\/strong>, \u1edf b\u00e0i vi\u1ebft n\u00e0y ch\u00fang ta t\u00ecm hi\u1ec3u v\u1ec1 c\u00f4ng ngh\u1ec7 LCD m\u00e1y t\u00ednh. L\u00e0 lo\u1ea1i m\u00e0n h\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t ng\u00e0y nay, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong TV v\u00e0 m\u00e1y t\u00ednh x\u00e1ch tay, \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh t\u1ea7m trung.<\/p>\n

C\u00e1c t\u1ea5m LCD \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u l\u1edbp.\u00a0C\u00e1c l\u1edbp c\u1ee7a m\u00e0n h\u00ecnh LCD c\u01a1 b\u1ea3n nh\u1ea5t tu\u00e2n theo th\u1ee9 t\u1ef1 sau:<\/p>\n

    \n
  • K\u00ednh b\u00ean ngo\u00e0i<\/li>\n
  • B\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c<\/li>\n
  • \u0110i\u1ec7n c\u1ef1c s\u1ed1 1<\/li>\n
  • Tinh th\u1ec3 l\u1ecfng<\/li>\n
  • \u0110i\u1ec7n c\u1ef1c s\u1ed1 2<\/li>\n
  • B\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c quang<\/li>\n
  • T\u1ea5m ph\u1ea3n quang<\/li>\n<\/ul>\n

    B\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c<\/strong><\/h3>\n

    S\u1ef1 ph\u00e2n c\u1ef1c c\u1ee7a \u00e1nh s\u00e1ng \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t l\u1edbn trong c\u00f4ng ngh\u1ec7 m\u00e0n h\u00ecnh LCD<\/strong>. V\u1ec1 n\u1ed9i t\u00e2m, \u00e1nh s\u00e1ng rung \u0111\u1ed9ng \u1edf nhi\u1ec1u khu v\u1ef1c kh\u00e1c nhau. Khi \u00e1nh s\u00e1ng ch\u1ea1m v\u00e0o b\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c, h\u1ea7u h\u1ebft ch\u00fang b\u1ecb ch\u1eb7n l\u1ea1i ngo\u1ea1i tr\u1eeb \u00e1nh s\u00e1ng dao \u0111\u1ed9ng tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng c\u1ee5 th\u1ec3. V\u00ec v\u1eady, n\u1ebfu \u00e1nh s\u00e1ng ch\u1ea1m v\u00e0o m\u1ed9t b\u1ed9 l\u1ecdc th\u1eb3ng \u0111\u1ee9ng, th\u00ec t\u1ea5t c\u1ea3 \u00e1nh s\u00e1ng, tr\u1eeb \u00e1nh s\u00e1ng dao \u0111\u1ed9ng tr\u00ean m\u1eb7t ph\u1eb3ng th\u1eb3ng \u0111\u1ee9ng s\u1ebd b\u1ecb ch\u1eb7n l\u1ea1i.<\/p>\n

    N\u1ebfu \u00e1nh s\u00e1ng dao \u0111\u1ed9ng tr\u00ean m\u1eb7t ph\u1eb3ng th\u1eb3ng \u0111\u1ee9ng ch\u1ea1m v\u00e0o m\u1ed9t b\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c th\u1eb3ng \u0111\u1ee9ng, n\u00f3 s\u1ebd c\u00f3 th\u1ec3 \u0111i qua m\u00e0 kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec. Tuy nhi\u00ean, n\u1ebfu n\u00f3 ch\u1ea1m v\u00e0o m\u1ed9t b\u1ed9 l\u1ecdc ngang, n\u00f3 s\u1ebd b\u1ecb ch\u1eb7n ho\u00e0n to\u00e0n.<\/p>\n

    \u0110i\u1ec7n c\u1ef1c v\u00e0 tinh th\u1ec3 l\u1ecfng<\/strong><\/h3>\n

    C\u00e1c \u0111i\u1ec7n c\u1ef1c truy\u1ec1n d\u00f2ng \u0111i\u1ec7n gi\u1eefa nhau, ngay c\u1ea3 khi m\u00f4i tr\u01b0\u1eddng gi\u1eefa ch\u00fang kh\u00f4ng d\u1eabn \u0111i\u1ec7n.\u00a0\u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec ch\u00fang c\u00f3 m\u1ed9t l\u1edbp tinh th\u1ec3 l\u1ecfng k\u1eb9p gi\u1eefa ch\u00fang.\u00a0Ch\u00fang \u0111\u1ea9y m\u1ed9t d\u00f2ng \u0111i\u1ec7n gi\u1eefa nhau, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tinh th\u1ec3 n\u00e0y.<\/p>\n

    Khi \u00e1nh s\u00e1ng truy\u1ec1n qua tinh th\u1ec3 l\u1ecfng, \u00e1nh s\u00e1ng s\u1ebd xo\u1eafn d\u1ecdc theo c\u00e1c ph\u00e2n t\u1eed.\u00a0M\u1ed9t khi d\u00f2ng \u0111i\u1ec7n \u0111i qua l\u1edbp, c\u00e1c ph\u00e2n t\u1eed s\u1ebd kh\u00f4ng b\u1ecb xo\u1eafn v\u00e0 du\u1ed7i th\u1eb3ng ra.\u00a0Khi \u0111i\u1ec1u n\u00e0y x\u1ea3y ra, \u00e1nh s\u00e1ng truy\u1ec1n qua kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n

    C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e0n h\u00ecnh LCD<\/strong><\/h3>\n

    \"\u00c1nh<\/p>\n

    \u0110\u1ec3 b\u1eaft \u0111\u1ea7u, \u00e1nh s\u00e1ng b\u00ean ngo\u00e0i \u0111i v\u00e0o m\u00e0n h\u00ecnh v\u00e0 ch\u1ea1m v\u00e0o b\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c d\u1ecdc. M\u1eb7c d\u00f9 \u00e1nh s\u00e1ng ph\u00e2n c\u1ef1c \u0111i qua \u0111i\u1ec7n c\u1ef1c \u0111\u1ea7u ti\u00ean kh\u00f4ng ph\u00e2n pha, nh\u01b0ng n\u00f3 s\u1ebd b\u1ecb xo\u1eafn 90 \u0111\u1ed9 sau khi va v\u00e0o tinh th\u1ec3 l\u1ecfng. B\u00e2y gi\u1edd, n\u00f3 c\u00f3 th\u1ec3 \u0111i qua b\u1ed9 l\u1ecdc ngang. \u00c1nh s\u00e1ng chi\u1ebfu v\u00e0o t\u1ea5m ph\u1ea3n chi\u1ebfu, sau \u0111\u00f3 ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i qua c\u00e1c l\u1edbp v\u00e0 \u0111\u1ebfn m\u1eaft ng\u01b0\u1eddi xem.<\/p>\n

    Khi m\u1ed9t d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o tinh th\u1ec3 l\u1ecfng, qu\u00e1 tr\u00ecnh n\u00e0y b\u1ecb gi\u00e1n \u0111o\u1ea1n. \u00c1nh s\u00e1ng ph\u00e2n c\u1ef1c th\u1eb3ng \u0111\u1ee9ng \u0111i qua tinh th\u1ec3 l\u1ecfng kh\u00f4ng thay \u0111\u1ed5i. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u00f3 b\u1ecb ch\u1eb7n khi ch\u1ea1m v\u00e0o b\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c ngang. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u1ed9t \u0111i\u1ec3m \u0111en. \u0110i\u1ec3m \u0111en \u0111\u00f3 s\u1ebd l\u00e0 nh\u1eefng con s\u1ed1 m\u00e0 b\u1ea1n nh\u00ecn th\u1ea5y tr\u00ean m\u00e0n h\u00ecnh.<\/p>\n

    M\u00e0n h\u00ecnh \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh v\u00e0 TV c\u00f3 m\u1ed9t ch\u00fat kh\u00e1c bi\u1ec7t, nh\u01b0ng cu\u1ed1i c\u00f9ng, ch\u00fang c\u00f3 chung c\u00e1c kh\u00e1i ni\u1ec7m. C\u00f3 m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ph\u1eb3ng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp ph\u00eda sau c\u00e1c l\u1edbp cung c\u1ea5p \u00e1nh s\u00e1ng. N\u00f3 b\u1ecb ph\u00e2n c\u1ef1c khi di chuy\u1ec3n qua c\u00e1c l\u1edbp v\u00e0 cu\u1ed1i c\u00f9ng ch\u1ea1m v\u00e0o c\u00e1c pixel ph\u1ee5 m\u00e0u \u0111\u1ecf, xanh l\u1ee5c v\u00e0 xanh lam. \u0110\u00e2y l\u00e0 c\u00e1ch \u00e1nh s\u00e1ng c\u00f3 \u0111\u01b0\u1ee3c m\u00e0u s\u1eafc tr\u01b0\u1edbc khi chi\u1ebfu v\u00e0o m\u1eaft ng\u01b0\u1eddi xem.