发明名称 |
Apparatus of driving light source for display device |
摘要 |
An apparatus of driving a light source for a display device includes a switching unit for selectively transmitting a DC input voltage, an oscillator for converting the DC input voltage into an AC voltage, and a transformer including a primary coil and a secondary coil for boosting the converted AC voltage using mutual inductance and for providing the boosted voltage for the light source. The driving apparatus further includes a current sensor for sensing a current in the oscillator or the secondary coil, and a light controller for controlling the switching unit based on the sensed current by the current sensor and a dimming control signal from an external device. Therefore, the current in the light source can be detected without a separate wire for connecting the light source and the light controller. <IMAGE> |
申请公布号 |
EP1378883(A1) |
申请公布日期 |
2004.01.07 |
申请号 |
EP20030013452 |
申请日期 |
2003.06.24 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KANG, MOON-SHIK;LEE, INN-SUNG;HAN, SONG-YI |
分类号 |
G02F1/133;G02F1/13357;G09G3/18;G09G3/20;G09G3/30;G09G3/32;G09G3/34;G09G3/36;H05B41/24;H05B41/282;H05B41/392 |
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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