Patent attributes
A cooktop includes a knob assembly coupled to a control panel and controlling a heating part. The knob assembly includes: a knob body disposed at a front surface of the control panel and rotating around a rotation shaft, a knob ring disposed at a rear side of the knob body and having a diameter greater than a diameter of the knob body, a light diffusing part disposed between the knob body and the knob ring, and a light source part comprising one or more light sources irradiating light. A diameter of the light diffusing part is greater than the diameter of the knob body and less than the diameter of the knob ring, a front surface of the light diffusing part is exposed between the knob body and the knob ring, and one of the light sources irradiates light between the knob body and the knob ring.
