发明名称 |
Apparatus for supplying power and liquid crystal display having the same |
摘要 |
Disclosed are a power supplying apparatus and a LCD having the same that reduces manufacturing cost of a large-scale LCD module and enhances powpower efficiency by integrating an external dc power supply used in a large-scale LCD panel into a LCD panel. A first voltage converter converts an external ac voltage into a first dc voltage, and changes a voltage level of the first de voltage into a second dc voltage having a highr voltage level than that of the first de voltage. A second voltage converter converts the second dc voltage into an ac voltage, raises a voltage level of the converted ac voltage, and provides the raised ac voltage to a load. A current detector detects a current flowing through the load, and provides a current detection signal as a feedback signal to the first voltage converter so that the first voltage provide a constant direct current output voltage.
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申请公布号 |
US7319600(B2) |
申请公布日期 |
2008.01.15 |
申请号 |
US20030479814 |
申请日期 |
2003.12.05 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE INN-SUNG;KANG MOON-SHIK;HAN SONG-YI |
分类号 |
G02F1/133;H02M3/335;G09G3/34;G09G3/36;H02M1/42;H02M3/28;H02M5/40;H02M5/458;H02M7/12;H02M7/5387 |
主分类号 |
G02F1/133 |
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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