A lighting device 12 for a display device of the present invention includes tubular light sources 17 provided in a parallel arrangement and covering members 20 that covers respective ends of the tubular light sources 17. Electrodes 41 are provided at ends of the tubular light sources 17. Electrical terminals 24 for electrically connecting to the electrodes 41 are assembled to the covering members 20. Namely, the covering members 20 have an electrical connection function for connecting the tubular light sources 17 to an external power source in addition to a covering function that is its primary function for covering the ends of the tubular light sources 17 so that they are not viewed. With this configuration, efficiency of the assembly work can be improved and reliable power supply to the tubular light sources 17 can be provided.