The present invention discloses an improved electrode structure of planar lamp, which applies to the planar lamp that has a gas-discharge cavity with at least a bending channel and with a discharge gas and a fluorescent material equipped thereinside. Via disposing an electrically conductive element, which traverses the bending channels, onto the discharge electrodes on the external wall of the gas-discharge cavity, the input area of the power output by the discharge electrodes is increased, and thus, the light uniformity of the planar lamp is achieved.

 
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