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    • 102. 发明申请
    • LIGHT-SOURCE MODULE FOR DISPLAY DEVICE AND DISPLAY DEVICE HAVING THE SAME
    • 用于显示装置的光源模块和具有该光源的显示装置
    • US20090021183A1
    • 2009-01-22
    • US12166506
    • 2008-07-02
    • Byoung-Dae YeGi-Cherl KimEui-Jeong Kang
    • Byoung-Dae YeGi-Cherl KimEui-Jeong Kang
    • H05B41/36
    • G09G3/342G09G2320/0233G09G2320/0626G09G2320/0693H05B33/0815H05B33/0827
    • A light-source module for a display device and a display device having the same, in which the light-source module includes a plurality of light-emitting units, a current difference controller, and a converter. The light-emitting units are connected in parallel between a driving power input terminal and a ground terminal to emit light by the diving power and to output respective feedback control signals. The current difference controller is configured to output a plurality of power control signals according to the respective feedback control signals. The converter is configured to change a current of the driving power provided to the light-emitting units according to the power control signals. The amounts of currents flowing through the light emitting units each having a plurality of light emitting diodes are measured and the levels of voltages applied to the light-emitting units are changed according to the measurement results. Accordingly, a current difference between the light emitting units can be reduced and the brightness uniformity of the light source can be improved.
    • 一种用于显示装置的光源模块及具有该光源模块的显示装置,其中光源模块包括多个发光单元,电流差控制器和转换器。 发光单元并联连接在驱动电源输入端子和接地端子之间,由潜水电力发光,并输出各个反馈控制信号。 电流差分控制器被配置为根据各个反馈控制信号输出多个功率控制信号。 转换器被配置为根据功率控制信号改变提供给发光单元的驱动电力的电流。 测量流过具有多个发光二极管的发光单元的电流量,并且根据测量结果改变施加到发光单元的电压的电平。 因此,可以降低发光单元之间的电流差,并且可以提高光源的亮度均匀性。
    • 110. 发明申请
    • DC-DC converter, driving apparatus having DC-DC converter, and display device having driving apparatus
    • DC-DC转换器,具有DC-DC转换器的驱动装置和具有驱动装置的显示装置
    • US20060022649A1
    • 2006-02-02
    • US11188154
    • 2005-07-22
    • Sang-Gil LeeJong-Seo LeeGi-Cherl KimSang-Yu Lee
    • Sang-Gil LeeJong-Seo LeeGi-Cherl KimSang-Yu Lee
    • G05F1/613
    • H02M3/158H05B41/28
    • A DC-DC converter includes a main inductor connected to an input voltage, a main switching element connected in series to the main inductor, a main diode connected to the main inductor and a load, and a main capacitor connected to the main diode and the load, the DC-DC converter changing the input voltage to output a changed input voltage as an output voltage. The DC-DC converter further includes an oscillator connected between the main inductor and the main diode, an auxiliary switching element connected to the oscillator, the auxiliary switching element changing an operation state based on an externally applied control signal to control the oscillator, and a diode unit connected to the oscillator and the auxiliary switching element and controlling current flow based on operations of the oscillator and the auxiliary switching element to change the output voltage. The main switching element and the main diode are to be zero voltage switching or zero current switching in accordance with the operations of the oscillator and the auxiliary switching element.
    • DC-DC转换器包括连接到输入电压的主电感器,与主电感器串联连接的主开关元件,连接到主电感器的主二极管和负载,以及连接到主二极管的主电容器和 DC-DC转换器改变输入电压以输出改变的输入电压作为输出电压。 DC-DC转换器还包括连接在主电感器和主二极管之间的振荡器,连接到振荡器的辅助开关元件,辅助开关元件基于外部施加的控制信号改变操作状态以控制振荡器,以及 二极管单元连接到振荡器和辅助开关元件,并且基于振荡器和辅助开关元件的操作来控制电流流动以改变输出电压。 主开关元件和主二极管根据振荡器和辅助开关元件的操作为零电压开关或零电流开关。