| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device in which an efficient dehumidification can be performed as compared with a former and even if the moisture resistance of a pixel structure is low, a stable display is possible and which has good lifetime characteristic. SOLUTION: Sealing between each organic EL element 22 and exterior is performed by a seal 23, and fluid F for cooling is circulated with a cooling device 3 in a sealed route. Moreover, a dehumidification apparatus 5 dehumidifies in the inside of the route. Even if moisture enters while an organic EL display device 1 is using, sufficient dehumidication can be performed. Moreover, since the sufficient dehumidication can be performed efficiently, it can respond, even if the prevention of the moisture processing of an organic EL panel 2 is insufficient. The impairment of an element which originates in moisture with the impairment of the element resulting from the generation of heat is also fully prevented. Since the reliability of the organic EL element 22 can be improved, a stable display is possible, and the organic EL display device with good lifetime characteristic can be obtained. COPYRIGHT: (C)2006,JPO&NCIPI
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