{"id":388804,"date":"2024-09-23T16:07:36","date_gmt":"2024-09-23T09:07:36","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=388804"},"modified":"2025-12-28T11:14:09","modified_gmt":"2025-12-28T04:14:09","slug":"man-hinh-tivi-bi-soc","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/man-hinh-tivi-bi-soc\/","title":{"rendered":"M\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc: Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c chi ti\u1ebft 7 tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn"},"content":{"rendered":"

M\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc ngang d\u1ecdc l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn khi\u1ebfn h\u00ecnh \u1ea3nh nhi\u1ec5u, kh\u00f3 xem tr\u00ean m\u1ecdi d\u00f2ng tivi LED, LCD, OLED. L\u1ed7i n\u00e0y c\u00f3 th\u1ec3 do nhi\u1ec5u s\u00f3ng, panel h\u1ecfng, IC driver l\u1ed7i ho\u1eb7c ph\u1ea7n m\u1ec1m, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m gi\u1ea3i tr\u00ed gia \u0111\u00ecnh. B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn chi ti\u1ebft 7 nguy\u00ean nh\u00e2n ch\u00ednh v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c nhanh t\u1ea1i nh\u00e0 t\u1eeb Ho\u00e0ng H\u00e0 Mobile \u2013 gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m chi ph\u00ed s\u1eeda ch\u1eefa.<\/span><\/p>\n

Nguy\u00ean nh\u00e2n khi\u1ebfn cho m\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc l\u00e0 g\u00ec?<\/h2>\n

M\u1ed9t chi\u1ebfc tivi ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng s\u1ebd cho ch\u1ea5t l\u01b0\u1ee3ng hi\u1ec3n th\u1ecb t\u1ed1t, s\u1eafc n\u00e9t tr\u00ean m\u1ecdi \u0111i\u1ec3m \u1ea3nh c\u1ee7a m\u00e0n h\u00ecnh. Nh\u01b0ng n\u1ebfu m\u00e0n h\u00ecnh thi\u1ebft b\u1ecb xu\u1ea5t hi\u1ec7n s\u1ecdc ngang, d\u1ecdc th\u00ec c\u00f3 th\u1ec3 nguy\u00ean nh\u00e2n xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t s\u1ed1 l\u00fd do sau.<\/p>\n

V\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00edn hi\u1ec7u<\/h3>\n

Tivi l\u1ed7i t\u00edn hi\u1ec7u l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1 ph\u1ed5 bi\u1ebfn, khi\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh v\u00e0 \u00e2m thanh b\u1ecb \u1ea3nh h\u01b0\u1edfng. C\u00f3 r\u1ea5t nhi\u1ec1u<\/p>\n

Nhi\u1ec5u s\u00f3ng: C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c trong nh\u00e0 nh\u01b0 l\u00f2 vi s\u00f3ng, t\u1ee7 l\u1ea1nh, \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u s\u00f3ng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00edn hi\u1ec7u truy\u1ec1n h\u00ecnh v\u00e0 khi\u1ebfn m\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc.<\/p>\n

\"man-hinh-tivi-bi-soc-1\"<\/picture><\/p>\n

C\u00e1p t\u00edn hi\u1ec7u: C\u00e1p k\u1ebft n\u1ed1i gi\u1eefa tivi v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nh\u01b0 \u0111\u1ea7u thu, m\u00e1y t\u00ednh b\u1ecb l\u1ecfng, \u0111\u1ee9t ho\u1eb7c h\u1ecfng c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra t\u00ecnh tr\u1ea1ng n\u00e0y.<\/p>\n

\u0102ng-ten: N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng anten \u0111\u1ec3 thu s\u00f3ng truy\u1ec1n h\u00ecnh, anten b\u1ecb h\u1ecfng ho\u1eb7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn h\u00ecnh \u1ea3nh b\u1ecb nhi\u1ec5u v\u00e0 xu\u1ea5t hi\u1ec7n c\u00e1c \u0111\u01b0\u1eddng s\u1ecdc.<\/p>\n

\u0110\u1ea7u thu: \u0110\u1ea7u thu b\u1ecb l\u1ed7i ph\u1ea7n m\u1ec1m, ho\u1eb7c kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi tivi.<\/p>\n

M\u1ea1ng internet: Khi xem truy\u1ec1n h\u00ecnh tr\u1ef1c tuy\u1ebfn, k\u1ebft n\u1ed1i internet kh\u00f4ng \u1ed5n \u0111\u1ecbnh s\u1ebd g\u00e2y ra gi\u1eadt lag, h\u00ecnh \u1ea3nh m\u1edd nh\u1ea1t th\u1eadm ch\u00ed l\u00e0 s\u1ecdc m\u00e0n.<\/p>\n

V\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u1ea7n c\u1ee9ng<\/h3>\n

L\u1ed7i ph\u1ea7n c\u1ee9ng trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed n\u00f3i chung l\u00e0 t\u00ecnh tr\u1ea1ng h\u01b0 h\u1ecfng ho\u1eb7c kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn v\u1eadt l\u00fd c\u1ea5u t\u1ea1o n\u00ean thi\u1ebft b\u1ecb \u0111\u00f3. Kh\u00e1c v\u1edbi l\u1ed7i ph\u1ea7n m\u1ec1m l\u00e0 l\u1ed7i li\u00ean quan \u0111\u1ebfn c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh, \u1ee9ng d\u1ee5ng, l\u1ed7i ph\u1ea7n c\u1ee9ng th\u01b0\u1eddng do c\u00e1c y\u1ebfu t\u1ed1 v\u1eadt l\u00fd g\u00e2y ra v\u00e0 th\u01b0\u1eddng kh\u00f3 kh\u1eafc ph\u1ee5c h\u01a1n. So v\u1edbi l\u1ed7i t\u00edn hi\u1ec7u g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng m\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc th\u00ec l\u1ed7i ph\u1ea7n c\u1ee9ng l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng h\u01a1n r\u1ea5t nhi\u1ec1u. Bi\u1ec3u hi\u1ec7n r\u00f5 nh\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c tivi \u0111an g\u1eb7p l\u1ed7i ph\u1ea7n c\u1ee9ng \u0111\u00f3 l\u00e0:<\/p>\n

M\u1ea1ch \u0111i\u1ec7n t\u1eed<\/h4>\n

C\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed b\u00ean trong tivi b\u1ecb h\u1ecfng, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n m\u00e0n h\u00ecnh, c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c l\u1ed7i hi\u1ec3n th\u1ecb nh\u01b0 s\u1ecdc m\u00e0n h\u00ecnh. B\u00ean c\u1ea1nh \u0111\u00f3, m\u1ebfu m\u1ea1ch ngu\u1ed3n b\u1ecb h\u1ecfng, c\u00e1c m\u1ea1ch kh\u00e1c s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, g\u00e2y ra nhi\u1ec1u l\u1ed7i kh\u00e1c nhau, trong \u0111\u00f3 c\u00f3 l\u1ed7i s\u1ecdc m\u00e0n h\u00ecnh.<\/p>\n

\"man-hinh-tivi-bi-soc-2\"<\/picture><\/p>\n

Panel<\/h4>\n

Panel tivi (hay c\u00f2n g\u1ecdi l\u00e0 t\u1ea5m n\u1ec1n) l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn quan tr\u1ecdng v\u00e0 chi\u1ebfm ph\u1ea7n l\u1edbn di\u1ec7n t\u00edch m\u1eb7t tr\u01b0\u1edbc c\u1ee7a tivi. N\u00f3 c\u00f3 ch\u1ee9c n\u0103ng nh\u1eadn t\u00edn hi\u1ec7u h\u00ecnh \u1ea3nh t\u1eeb c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed b\u00ean trong v\u00e0 hi\u1ec3n th\u1ecb ch\u00fang l\u00ean m\u00e0n h\u00ecnh \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y. N\u1ebfu panel b\u1ecb h\u1ecfng, c\u00e1c \u0111i\u1ec3m \u1ea3nh tr\u00ean m\u00e0n h\u00ecnh s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng \u0111\u1ec1u, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng m\u00e0n h\u00ecnh tivi b\u1ecb s\u1ecdc.<\/p>\n

IC \u0111i\u1ec1u khi\u1ec3n panel b\u1ecb l\u1ed7i<\/h4>\n

IC \u0111i\u1ec1u khi\u1ec3n panel (hay c\u00f2n g\u1ecdi l\u00e0 IC driver) l\u00e0 m\u1ed9t con chip c\u1ef1c k\u1ef3 quan tr\u1ecdng trong tivi. N\u00f3 c\u00f3 nhi\u1ec7m v\u1ee5 \u0111i\u1ec1u khi\u1ec3n c\u00e1c \u0111i\u1ec3m \u1ea3nh tr\u00ean m\u00e0n h\u00ecnh, gi\u00fap ch\u00fang hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh theo \u0111\u00fang t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o. Khi IC n\u00e0y b\u1ecb l\u1ed7i, c\u00e1c \u0111i\u1ec3m \u1ea3nh s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng b\u1ed9, d\u1eabn \u0111\u1ebfn c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nh\u01b0 s\u1ecdc m\u00e0n h\u00ecnh, nh\u1ea5p nh\u00e1y, ho\u1eb7c m\u1ed9t ph\u1ea7n m\u00e0n h\u00ecnh kh\u00f4ng s\u00e1ng.<\/p>\n

\u0110\u00e8n n\u1ec1n<\/h4>\n

\u0110\u00e8n n\u1ec1n l\u00e0 ngu\u1ed3n s\u00e1ng chi\u1ebfu s\u00e1ng t\u1eeb ph\u00eda sau panel. M\u1ed9t s\u1ed1 \u0111\u00e8n LED trong d\u1ea3i \u0111\u00e8n n\u1ec1n b\u1ecb ch\u00e1y ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh s\u1ebd g\u00e2y ra c\u00e1c v\u1ec7t t\u1ed1i ho\u1eb7c s\u00e1ng b\u1ea5t th\u01b0\u1eddng tr\u00ean m\u00e0n h\u00ecnh, t\u1ea1o th\u00e0nh c\u00e1c \u0111\u01b0\u1eddng s\u1ecdc.<\/p>\n

\"man-hinh-tivi-bi-soc-3\"<\/picture><\/p>\n

C\u00e1c linh ki\u1ec7n kh\u00e1c b\u1ecb h\u1ecfng<\/h4>\n

C\u00e1c linh ki\u1ec7n kh\u00e1c nh\u01b0 t\u1ee5 \u0111i\u1ec7n, \u0111i\u1ec7n tr\u1edf, transistor… c\u0169ng c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng v\u00e0 g\u00e2y ra l\u1ed7i s\u1ecdc m\u00e0n h\u00ecnh.<\/p>\n

V\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u1ea7n m\u1ec1m<\/h3>\n

S\u1ecdc m\u00e0n h\u00ecnh xu\u1ea5t hi\u1ec7n ng\u1eabu nhi\u00ean b\u1ea5t c\u1ee9 l\u00fac n\u00e0o n\u1ebfu g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 l\u1ed7i ph\u1ea7n m\u1ec1m sau:<\/p>\n