发明名称 |
Display apparatus and power circuit devices thereof |
摘要 |
<p>A display apparatus and a power circuit device thereof are provided. The power circuit device includes: a transforming unit which outputs a first output current and a second output current in response to change of an input current; a first switching unit which switches to allow the input current to be selectively input; a first switch control unit which controls the first switching unit so that an operation voltage of the display apparatus reaches a first target value; a second switching unit which switches to allow the second output current to be selectively output; a backlight driving unit which drives the backlight based on the second output current; and a second switch control unit which controls the second switching unit so that a driving voltage of the backlight reaches a second target value. With this configuration, it is possible to reduce costs and increase efficiency by removing a post-regulator from a power circuit of a display apparatus including a backlight.</p> |
申请公布号 |
EP2431965(A1) |
申请公布日期 |
2012.03.21 |
申请号 |
EP20110168305 |
申请日期 |
2011.05.31 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, JUNG-SEOB;LEE, SANG-HOON;KIM, TAE-HOON;PANKAJ, AGARWAL |
分类号 |
G09G3/34;G09G3/20;H02M3/335;H05B33/00 |
主分类号 |
G09G3/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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