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42 条记录 (耗时 0.027 秒)

    Light emitting diode and lens for the same
    1.
    发明授权
    Light emitting diode and lens for the same 有权
    发光二极管和镜头相同

    公开(公告)号：US07549781B2

    公开(公告)日：2009-06-23

    申请号：US11222962

    申请日：2005-09-12

    申请人： Gi-Cherl Kim ,  Chun-Ho Song ,  Sang-Gil Lee ,  Jong-Seo Lee ,  Sang-Yu Lee ,  Ju-Young Yoon

    发明人： Gi-Cherl Kim ,  Chun-Ho Song ,  Sang-Gil Lee ,  Jong-Seo Lee ,  Sang-Yu Lee ,  Ju-Young Yoon

    IPC分类号： H01L33/00

    CPC分类号： G02B19/0066 ,  G02B19/0028 ,  G02B19/0071 ,  H01L33/58 ,  H01L33/60 ,  Y10S362/80

    摘要： A light emitting diode includes a lens, a chip base attached to a bottom of the lens, and an LED chip attached in the chip base to be concentric with the lens. The lens includes a bottom, an outer sidewall extending from the bottom, a first outer top surface extending from the outer sidewall, a second outer top surface extending from the first outer top surface and having a substantially conical groove-like shape, an inner sidewall forming a side of a central cavity formed by hollowing a central portion of the bottom, and an inner top surface extending from the inner sidewall and forming a ceiling of the central cavity. The substantially conical groove-like shaped second outer top surface has an angular point formed toward the central cavity, and the inner top surface is convexly formed toward the bottom.

    摘要翻译： 发光二极管包括透镜，附接到透镜的底部的芯片基板和附接在芯片基座中以与透镜同心的LED芯片。 所述透镜包括底部，从所述底部延伸的外侧壁，从所述外侧壁延伸的第一外顶表面，从所述第一外顶表面延伸并具有基本上圆锥形的凹槽形状的第二外顶表面， 形成通过中空底部的中心部分形成的中心腔的一侧，以及从内侧壁延伸并形成中心腔的天花板的内顶表面。 基本上圆锥形的槽状第二外顶表面具有朝向中心腔形成的角点，并且内顶表面朝向底部凸形地形成。

    DC-DC converter
    2.
    发明授权
    DC-DC converter 有权
    DC-DC转换器

    公开(公告)号：US07332897B2

    公开(公告)日：2008-02-19

    申请号：US11188154

    申请日：2005-07-22

    申请人： Sang-Gil Lee ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    发明人： Sang-Gil Lee ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    IPC分类号： G05F1/613 ,  G05F3/16

    CPC分类号： H02M3/158 ,  H05B41/28

    摘要： 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.

    摘要翻译： 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。

    Power supply, display device, and light source driving apparatus
    3.
    发明授权
    Power supply, display device, and light source driving apparatus 有权
    电源，显示装置和光源驱动装置

    公开(公告)号：US07567067B2

    公开(公告)日：2009-07-28

    申请号：US11197082

    申请日：2005-08-04

    申请人： Sang-Gil Lee ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    发明人： Sang-Gil Lee ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    IPC分类号： G05F1/00

    CPC分类号： H02M3/156 ,  G09G3/3406

    摘要： A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative of a duty ratio of the first switching control signal, and the DC-DC converter converting the input voltage into a DC output voltage of a predetermined magnitude based on the first switching control signal; and a feedback controlling unit comparing the duty sensing signal with a first reference signal to adjust the duty ratio of the first switching control signal.

    摘要翻译： 提供电源，其包括被提供有外部DC输入电压的DC-DC转换器和第一开关控制信号，并且输出根据第一开关控制信号改变幅度的占空比感测信号，占空比 感测信号表示第一开关控制信号的占空比，并且DC-DC转换器基于第一开关控制信号将输入电压转换成预定幅度的DC输出电压; 以及反馈控制单元，将占空比感测信号与第一参考信号进行比较，以调整第一开关控制信号的占空比。

    Power supply, backlight apparatus, and display device
    4.
    发明授权
    Power supply, backlight apparatus, and display device 有权
    电源，背光装置和显示装置

    公开(公告)号：US07456581B2

    公开(公告)日：2008-11-25

    申请号：US11201979

    申请日：2005-08-11

    申请人： Sang-Gil Lee ,  Seock-Hwan Kang ,  Chun-Ho Song ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    发明人： Sang-Gil Lee ,  Seock-Hwan Kang ,  Chun-Ho Song ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

    IPC分类号： H05B37/00

    CPC分类号： H05B41/285 ,  Y02B20/183

    摘要： A power supply includes a light source, a signal converting unit converting an externally supplied AC voltage into a DC voltage, a DC-DC converting unit converting a magnitude of the DC voltage, and a light source protecting unit. The light source protecting unit outputs the DC voltage of a predetermined range as a light source driving voltage to supply a stabilized source driving voltage to the light source and suspending an application of the light source driving voltage to the light source when a magnitude of the light source driving voltage is larger than a predetermined value, based on an externally supplied control signal.

    摘要翻译： 电源包括光源，将外部提供的AC电压转换为DC电压的信号转换单元，转换DC电压的大小的DC-DC转换单元和光源保护单元。 光源保护单元输出预定范围的直流电压作为光源驱动电压，以向光源提供稳定的源极驱动电压，并且在光的大小时暂停施加光源驱动电压到光源 源极驱动电压基于外部提供的控制信号大于预定值。