A lamp socket that supports a lamp including a lamp body and one or more electrodes protruding from opposite end portions of the lamp body and that electrically connects an inverter circuit board driving the lamp and the lamp includes: a socket terminal having a first stopper where the electrodes are inserted in a first direction crossing a lengthwise direction of the electrodes to be held, the socket terminal providing an elastic force in a second direction substantially crossing the lengthwise direction of the electrodes and the first direction, whereby the first stopper is closely held to the electrodes.