Heat dissipation plate material emitting multi-direction light and lighting device using the same

The present invention relates to a heat dissipation plate material emitting multi-direction lights and a lighting device using the same. The plate material includes: a light-transmissive substrate having a first surface and a second surface in opposite to each other; a circuit layer disposed on the first surface and/or the second surface; at least one light emitting diode disposed on the first surface and/or the second surface and connecting to the circuit layer; and a far infrared radiation coating layer on the first surface and/or the second surface of the light-transmissive substrate. Thanks to the light-transmissive property of the light-transmissive substrate, the light emitted from the light emitting diode is not only transmitted in a positive direction but also transmitted in a negative direction. The thermal energy generated during the operation of the light emitting diode is transferred to the far infrared radiation coating layer and then to be dissipated in the form of far infrared radiation.