Patent ID: 7549768

Claim:
A display device comprising: a discharge tube elongated in a longitudinal direction, a reflector to reflect a light radiated from said discharge tube and imposed perpendicularly to said longitudinal direction with respect to said discharge tube, a support member arranged at a position near an electrode of said discharge tube to support said discharge tube at a prescribed position with respect to said reflector and imposed perpendicularly to said longitudinal direction with respect to said discharge tube wherein the support member covers the outer periphery of a portion of the discharge tube near said electrode, a heat conduction member imposed perpendicularly to said longitudinal direction with respect to said discharge tube and contacting a mid portion of said discharge tube in a longitudinal direction thereof so that said heat conduction member contacts to fasten said discharge tube at two or more opposite positions to the perpendicular direction thereof, and wherein said heat conduction member contacts the mid portion of said discharge tube in the longitudinal direction thereof, so that a portion of said discharge tube near said electrode of said discharge tube is prevented from being the lowest point in temperature.