发明名称 |
Driving circuit for a light emitting element |
摘要 |
It is an object of the present invention to provide a driving circuit which can drive a light emitting element in spite of a reduced power supply voltage and which is thus suitable for size reduction. The present invention provides a driving circuit which supplies a bias current to a light emitting element and which carries out modulation on the basis of voltage driving, the driving circuit comprising a boosting circuit that increases a power supply voltage Vcc, a resistance element connected between an output of the boosting circuit and an anode terminal of the light emitting element, and a capacitive element connected to the anode terminal of the light emitting element to supply a modulation signal to the light emitting element for voltage driving.
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申请公布号 |
US6914387(B2) |
申请公布日期 |
2005.07.05 |
申请号 |
US20030431588 |
申请日期 |
2003.05.08 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
SATO MASAHIRO;NISHIE MITSUAKI |
分类号 |
H01S5/042;(IPC1-7):G09G3/10 |
主分类号 |
H01S5/042 |
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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