| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an AC-driven light emitting device that achieves a voltage compensation effect, an enhanced color rendering, and improved light-emitting efficiency. <P>SOLUTION: The AC-driven light emitting device includes a lead frame, at least one main LED chip and at least one compensation circuit. The main LED chip includes at least two sets of light-emitting groups to alternately emit lights when being driven by positive and negative waves of an AC current. The compensation circuit is composed of another set of LED chips serving as a bridge connection means, and detachably installed according to the working voltage and color rendering of the main LED chip of the light emitting device. <P>COPYRIGHT: (C)2011,JPO&INPIT |
