Light source device with discontinuous electrode contact portions and liquid crystal display

A liquid crystal display comprising a light source device, and a liquid crystal panel that transmits light emitted from the light source device,

• wherein the light source device includes at least one discharge tube, a discharge medium sealed inside the discharge tube, and first and second electrodes for exciting the discharge medium,
• wherein
• the first electrode is arranged inside or outside the discharge tube, and
• the second electrode is in contact with an outer surface of the discharge tube at a plurality of contact portions, the contact portions being located at different distances from the first electrode and being provided discontinuously,
• wherein the plurality of the contact portions are arranged in a tube axial direction of the discharge tube,
• the first electrode is formed at an end of the discharge tube, and
• a distance between adjacent ones of the contact portions in the tube axial direction of the discharge tube is narrower with decreasing proximity to the first electrode.