| 摘要 |
A backlight unit 12 includes a cold cathode tube 17, a chassis 14, a stand 19, a cold cathode tube holder 18 and a rotor 26. The cold cathode tube 17 includes electrodes at ends and a luminescent material sealed therein. The chassis 14 includes a bottom plate 14a arranged on an opposite side from a light output side with respect to the cold cathode tube 17, and houses the cold cathode tube 17. The stand holds the chassis 14 such that a plate surface of the bottom plate 14a is set along the vertical direction. The cold cathode tube holder 18 holds the cold cathode tube 17 in a position parallel to the plate surface the bottom plate 14a. The rotor 26 rotates the cold cathode tube 17 around an axis perpendicular to the plate surface of the bottom plate 14a with respect to the chassis 14.
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