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    • 3. 发明申请
    • LUMINESCENCE DRIVING APPARATUS, DISPLAY APPARATUS, AND DRIVING METHOD THEREOF
    • 发光装置,显示装置及其驱动方法
    • US20120049740A1
    • 2012-03-01
    • US13053754
    • 2011-03-22
    • Jeong-il KANGGil-yong CHANGYoung-deok CHOIHyo-soon CHOI
    • Jeong-il KANGGil-yong CHANGYoung-deok CHOIHyo-soon CHOI
    • H05B37/03H05B37/02
    • H05B33/089Y02B20/341
    • A luminescence driving apparatus, a display apparatus, and a driving method thereof are provided. The luminescence driving apparatus drives a plurality of light-emitting units and includes: a voltage sensor which senses internal voltages of the plurality of light-emitting units; a current sensor which senses internal currents of the plurality of light-emitting units; a sensing signal generator which receives the internal voltages of the plurality of light-emitting units from the voltage sensor to generate an overvoltage sensing signal; a controller which, if it is determined that an overvoltage state has occurred, according to a level of the overvoltage sensing signal, searches for at least one of the plurality of light-emitting units in which the overvoltage state has occurred, according to levels of the internal currents sensed by the current sensor; and a protector which performs an overvoltage protection (OVP) operation with respect to the searched light-emitting unit.
    • 提供了发光驱动装置,显示装置及其驱动方法。 发光驱动装置驱动多个发光单元,包括:感测多个发光单元的内部电压的电压传感器; 感测多个发光单元的内部电流的电流传感器; 感测信号发生器,其从所述电压传感器接收所述多个发光单元的内部电压,以产生过电压感测信号; 控制器,如果根据过电压感测信号的电平确定已经发生过电压状态,则根据其中发生过电压状态的多个发光单元中的至少一个,根据 由电流传感器感测的内部电流; 以及对搜索到的发光单元执行过电压保护(OVP)操作的保护器。