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    • 20. 发明申请
    • COLOUR SWITCHING TEMPERATURE INDICATOR
    • 彩色开关温度指示器
    • WO2006040717A1
    • 2006-04-20
    • PCT/IB2005/053298
    • 2005-10-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.MEIJER, Eduard, J.WEGH, Rene, T.KURT, Ralph
    • MEIJER, Eduard, J.WEGH, Rene, T.KURT, Ralph
    • G01K11/12
    • G01K11/12
    • A temperature indicator (101) is adapted to be provided on a surface (116) for providing a first type of light emission and a second type of light emission (L2). The temperature indicator (101) comprises a light-emitting diode (108) for providing said first type of light emission and a light-emitting electrochemical cell (109) for providing said second type of light emission (L2). The light-emitting electrochemical cell (109) has a first electrode (120), a second electrode (121) and a second light-emitting layer (113) being sandwiched between them and comprising a matrix and ions being movable in the matrix, the mobility of said ions in said matrix being temperature dependent. A power source (105) is adapted for driving the cell (109) with an AC voltage, the frequency of which is tuned in such a way that the cell (109) provides said second type of light emission (L2) when the surface temperature exceeds a certain level.
    • 温度指示器(101)适于设置在用于提供第一类型发光和第二类型发光(L2)的表面(116)上。 温度指示器(101)包括用于提供所述第一类型发光的发光二极管(108)和用于提供所述第二类型发光(L2)的发光电化学电池(109)。 发光电化学电池(109)具有第一电极(120),第二电极(121)和夹在它们之间的第二发光层(113),并且包括基质和可在基体中移动的离子, 所述基质中所述离子的迁移率是温度依赖性的。 电源(105)适于以交流电压驱动电池(109),其频率被调节为使得当电池(109)提供所述第二类型的发光(L2)时,表面温度 超过一定水平。