发明名称 |
DISCHARGE LAMP OPERATION DEVICE, ILLUMINATION DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE |
摘要 |
A burst dimming signal to determine a ratio between an ON period and an OFF period is inputted. In the OFF period of the burst dimming signal, a lamp current Ila is stopped from flowing to a discharge lamp FL, while a lamp voltage Vla is applied to both ends of the discharge lamp FL, and preheating currents If1 and If2 are supplied to hot cathodes of the discharge lamp FL. In the ON period of the burst dimming signal, the discharge lamp FL is electrically broken down and is supplied with the lamp current Ila.
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申请公布号 |
EP2129192(A1) |
申请公布日期 |
2009.12.02 |
申请号 |
EP20080711368 |
申请日期 |
2008.02.15 |
申请人 |
PANASONIC ELECTRIC WORKS CO., LTD |
发明人 |
MISHIMA, MASANORI;NARUO, MASAHIRO |
分类号 |
H05B41/392;G02F1/13357;H05B41/24;H05B41/28 |
主分类号 |
H05B41/392 |
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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