发明授权
- 专利标题： Display device
- 专利标题（中）： 显示设备
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申请号： US10157055申请日： 2002-05-30
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公开(公告)号： US07439968B2公开(公告)日： 2008-10-21
- 发明人: Hisashi Nagai , Koichi Tsutsumi , Shinji Sato
- 申请人： Hisashi Nagai , Koichi Tsutsumi , Shinji Sato
- 申请人地址： JP Moriguchi-shi
- 专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人地址： JP Moriguchi-shi
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP.
- 优先权： JP2001-168663 20010604
- 主分类号： G09G5/00
- IPC分类号： G09G5/00
摘要：
In a display device comprising a cooling suction fan and an air filter arranged on the suction side of the cooling suction fan, there are provided first means for measuring the value of a current flowing through a power supply line to the cooling suction fan for each predetermined time period, and second means for judging that the air filter is clogged when the measured current value is not more than a predetermined reference value, to inform the user that the air filter is clogged.
公开/授权文献
- US20030024683A1 Display device 公开/授权日：2003-02-06
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