公开(公告)号：US08696175B2

公开(公告)日：2014-04-15

申请号：US13159463

申请日：2011-06-14

Applicant: Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

Inventor： Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

IPC: F21V5/04

CPC classification number: F21V5/04 ,  F21V5/008 ,  F21Y2115/10 ,  G02B3/04 ,  G02B19/0014 ,  G02B19/0061 ,  G02F1/133603 ,  H01L33/54 ,  H01L33/58

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: A1+A2

Abstract translation: 用折射率为n的材料形成用于发光二极管的透镜，透镜包括基底，从基底延伸的第一弯曲圆周表面，从第一弯曲圆周表面延伸的弯曲的中心边缘表面， 以及从弯曲的中心边缘表面延伸的弯曲的中心表面。 基座包括用于在其中接收发光芯片的凹槽。 在透镜中，从基部的中心到弯曲的中心边缘表面的点的距离总是短于弯曲的中心边缘表面的点的曲率半径。 弯曲的中心表面相对于基部具有凹形。 此外，当形成在透镜的主轴与弯曲的最中心表面的点的切线之间的钝角为A1时，并且在连接基座的中心与直线的中心的直线之间形成锐角 弯曲的中心表面和透镜的主轴为A2，透镜满足等式：A1 + A2 <90 + sin-1（1 / n）。

公开(公告)号：US08567998B2

公开(公告)日：2013-10-29

申请号：US13159463

申请日：2011-06-14

Applicant: Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

Inventor： Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

IPC: F21V5/04

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: A1+A2

公开(公告)号：US20110242820A1

公开(公告)日：2011-10-06

申请号：US13159463

申请日：2011-06-14

Applicant: Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

Inventor： Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

IPC: F21V5/04

CPC classification number: F21V5/04 ,  F21V5/008 ,  F21Y2115/10 ,  G02B3/04 ,  G02B19/0014 ,  G02B19/0061 ,  G02F1/133603 ,  H01L33/54 ,  H01L33/58

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: A1+A2

Abstract translation: 用折射率为n的材料形成用于发光二极管的透镜，透镜包括基底，从基底延伸的第一弯曲圆周表面，从第一弯曲圆周表面延伸的弯曲的中心边缘表面， 以及从弯曲的中心边缘表面延伸的弯曲的中心表面。 基座包括用于在其中接收发光芯片的凹槽。 在透镜中，从基部的中心到弯曲的中心边缘表面的点的距离总是短于弯曲的中心边缘表面的点的曲率半径。 弯曲的中心表面相对于基部具有凹形。 此外，当形成在透镜的主轴与弯曲的最中心表面的点的切线之间的钝角为A1时，并且在连接基座的中心与直线的中心的直线之间形成锐角 弯曲的中心表面和透镜的主轴为A2，透镜满足等式：A1 + A2 <90 + sin-1（1 / n）。

公开(公告)号：US07963680B2

公开(公告)日：2011-06-21

申请号：US12507308

申请日：2009-07-22

Applicant: Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

Inventor： Ju-Young Yoon ,  Gi-Cherl Kim ,  Jong-Seo Lee ,  Chun-Ho Song ,  Se-Ki Park ,  Sang-Gil Lee ,  Seock-Hwan Kang

IPC: F21V5/00

CPC classification number: F21V5/04 ,  F21V5/008 ,  F21Y2115/10 ,  G02B3/04 ,  G02B19/0014 ,  G02B19/0061 ,  G02F1/133603 ,  H01L33/54 ,  H01L33/58

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: A1+A2

Abstract translation: 用折射率为n的材料形成用于发光二极管的透镜，透镜包括基底，从基底延伸的第一弯曲圆周表面，从第一弯曲圆周表面延伸的弯曲的中心边缘表面， 以及从弯曲的中心边缘表面延伸的弯曲的中心表面。 基座包括用于在其中接收发光芯片的凹槽。 在透镜中，从基部的中心到弯曲的中心边缘表面的点的距离总是短于弯曲的中心边缘表面的点的曲率半径。 弯曲的中心表面相对于基部具有凹形。 此外，当形成在透镜的主轴与弯曲的最中心表面的点的切线之间的钝角为A1时，并且在连接基座的中心与直线的中心的直线之间形成锐角 弯曲的中心表面和透镜的主轴为A2，透镜满足等式：A1 + A2 <90 + sin-1（1 / n）。

公开(公告)号：US07713092B2

公开(公告)日：2010-05-11

申请号：US11455355

申请日：2006-06-19

Applicant: Gi-Cherl Kim ,  Joo-Woan Cho ,  Sang-Gil Lee ,  Don-Chan Cho ,  Sang-Yu Lee

Inventor： Gi-Cherl Kim ,  Joo-Woan Cho ,  Sang-Gil Lee ,  Don-Chan Cho ,  Sang-Yu Lee

IPC: H01R24/00

CPC classification number: H05K1/142 ,  G02F1/133603 ,  G02F2001/133612 ,  H05K1/056 ,  H05K1/117 ,  H05K3/107 ,  H05K2201/09145 ,  H05K2201/09172 ,  H05K2201/09827 ,  H05K2201/09845 ,  H05K2201/09981 ,  H05K2201/10106 ,  H05K2203/167

Abstract: A backlight assembly and a display device having the backlight assembly are provided where the backlight assembly includes a plurality of light sources for emitting light and a plurality of metal core printed circuit boards on which the light sources are mounted. The metal core printed circuit boards are directly connected to each other in predetermined regions to emit light in a surface direction. A method of assembling the backlight assembly is further provided.

Abstract translation: 提供背光组件和具有背光组件的显示装置，其中背光组件包括用于发光的多个光源和安装有光源的多个金属芯印刷电路板。 金属芯印刷电路板在预定区域中彼此直接连接以在表面方向上发光。 还提供组装背光组件的方法。

公开(公告)号：US20100085296A1

公开(公告)日：2010-04-08

申请号：US12416405

申请日：2009-04-01

Applicant: Kyung-Uk Choi ,  Sang-Gil Lee ,  Yun-Jae Park ,  Seung-Hwan Moon

Inventor： Kyung-Uk Choi ,  Sang-Gil Lee ,  Yun-Jae Park ,  Seung-Hwan Moon

IPC: G09G3/36

CPC classification number: G09G3/3426 ,  G09G2330/04

Abstract: A backlight assembly includes a light source unit, at least one block driving unit, a controller unit and a noise removing circuit. The light source unit includes a plurality of dimming blocks generating light. The block driving unit drives the dimming blocks. The controller unit controls the block driving unit. The noise removing circuit is connected to the block driving unit and the controller unit to prevent noise from being applied to a reset terminal of the block driving unit

Abstract translation: 背光组件包括光源单元，至少一个块驱动单元，控制器单元和噪声去除电路。 光源单元包括产生光的多个调光块。 块驱动单元驱动调光块。 控制器单元控制块驱动单元。 噪声消除电路连接到块驱动单元和控制器单元，以防止噪声施加到块驱动单元的复位端

公开(公告)号：US20090273920A1

公开(公告)日：2009-11-05

申请号：US12503620

申请日：2009-07-15

Applicant: Chun-Ho SONG ,  Sang-Yu Lee ,  Gi-Cherl Kim ,  Seoek-Hwan Kang ,  Sang-Gil Lee ,  Ju-Young Yoon

Inventor： Chun-Ho SONG ,  Sang-Yu Lee ,  Gi-Cherl Kim ,  Seoek-Hwan Kang ,  Sang-Gil Lee ,  Ju-Young Yoon

IPC: G09F13/04 ,  F21S4/00 ,  F21V9/00

CPC classification number: G02F1/133603 ,  G02F2001/133613 ,  G02F2001/133628

Abstract: A light-generating device includes a driving substrate and a plurality of light source arrays. The driving substrate has a rectangular planar shape. The plurality of light source arrays is formed on the driving substrate. The light source arrays include at least one light emitting diode to generate light in response to power being applied through the substrate, and the light source arrays are spaced apart from each other. Thus, heat generated from the light-generating device is rapidly dissipated from the light-generating device, improving brightness of the light, brightness uniformity of the light and color reproducibility of the light.

Abstract translation: 光产生装置包括驱动基板和多个光源阵列。 驱动基板具有矩形平面形状。 多个光源阵列形成在驱动基板上。 光源阵列包括至少一个发光二极管，以响应于通过衬底施加的功率而产生光，并且光源阵列彼此间隔开。 因此，从发光装置产生的热量从发光装置迅速消散，提高光的亮度，光的亮度均匀性和光的颜色再现性。

公开(公告)号：US20090256499A1

公开(公告)日：2009-10-15

申请号：US12488403

申请日：2009-06-19

Applicant: Sang-Gil LEE ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

Inventor： Sang-Gil LEE ,  Ju-Young Yoon ,  Jong-Seo Lee ,  Gi-Cherl Kim ,  Sang-Yu Lee

IPC: H05B39/04

CPC classification number: H02M3/156 ,  G09G3/3406

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090109168A1

公开(公告)日：2009-04-30

申请号：US12247826

申请日：2008-10-08

Applicant: Sang-gil LEE ,  Seung-hwan Moon ,  Ki-chan Lee

Inventor： Sang-gil LEE ,  Seung-hwan Moon ,  Ki-chan Lee

IPC: G09G3/18

CPC classification number: H05B33/0818 ,  G09G3/3426 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/08 ,  H05B33/0887 ,  Y02B20/346

Abstract: A backlight driver and liquid crystal display device including the same are disclosed. The backlight driver, in accordance with an embodiment, includes a driving-voltage-generating unit supplying a driving voltage to a light-emitting unit, or cutting off the supply of the driving voltage to the light-emitting unit, in response to a pulse width modulation signal; a pulse-width-modulation-signal-generating unit supplying the pulse width modulation signal to the driving-voltage-generating unit, and stopping its operation when an error occurs in the light-emitting unit; and an automatic reset unit supplying a reset signal to the pulse-width-modulation-signal-generating unit, when the pulse-width-modulation-signal-generating unit stops its operation, to restart the operation of the pulse-width-modulation-signal-generating unit.

Abstract translation: 公开了一种背光驱动器和包括该驱动器的液晶显示装置。 根据实施例的背光驱动器包括驱动电压产生单元，其响应于脉冲向驱动电压产生单元提供驱动电压到发光单元，或者切断对发光单元的驱动电压的供应 宽度调制信号; 脉冲宽度调制信号产生单元，向所述驱动电压产生单元提供所述脉宽调制信号，并且在所述发光单元中发生错误时停止其操作; 以及自动复位单元，当脉宽调制信号产生单元停止其操作时，向脉宽调制信号产生单元提供复位信号，以重新启动脉冲宽度调制信号产生单元的操作， 信号发生单元。

公开(公告)号：US20080157699A1

公开(公告)日：2008-07-03

申请号：US11872908

申请日：2007-10-16

Applicant: Sang Gil LEE ,  Tae Seok JANG ,  Sang Hoon LEE

Inventor： Sang Gil LEE ,  Tae Seok JANG ,  Sang Hoon LEE

IPC: H05B41/36

CPC classification number: H05B33/0818 ,  G09G3/32 ,  G09G3/3406 ,  G09G2320/064 ,  G09G2330/025 ,  Y02B20/341 ,  Y02B20/346

Abstract: An “LED” driving circuit comprises an “LED” driving voltage generator which generates an “LED” driving voltage, a pulse width modulation (“PWM”) control unit which outputs a “PWM” signal having a predetermined duty ratio, and a main switching unit which controls the driving voltage applied to the “LEDs” in accordance with the “PWM” signal. Further, the “PWM” control unit comprises a controller including an error amplifier which detects an error between a reference voltage and a driving voltage and amplifies the detected error, an oscillator which outputs a pulse signal having a predetermined oscillation frequency, and a comparator which compares the pulse signal output from the oscillator with an output voltage from the error amplifier to generate a “PWM” signal; and a high frequency damper connected to the main switching unit to prevent malfunction of the controller due to noise. A backlight unit and liquid crystal display incorporate the “LED” driving circuit.

Abstract translation: “LED”驱动电路包括产生“LED”驱动电压的“LED”驱动电压发生器，输出具有预定占空比的“PWM”信号的脉冲宽度调制（“PWM”）控制单元， 开关单元，其根据“PWM”信号控制施加到“LED”的驱动电压。 此外，“PWM”控制单元包括控制器，该控制器包括检测参考电压和驱动电压之间的误差并放大检测到的误差的误差放大器，输出具有预定振荡频率的脉冲信号的振荡器和比较器， 将来自振荡器的脉冲信号输出与来自误差放大器的输出电压进行比较以产生“PWM”信号; 以及连接到主开关单元的高频阻尼器，以防止由于噪声引起的控制器的故障。 背光单元和液晶显示器包含“LED”驱动电路。