公开(公告)号：US08247982B2

公开(公告)日：2012-08-21

申请号：US12362939

申请日：2009-01-30

申请人： Jong-Jae Lee ,  Hyeon-Yong Jang ,  Ho-Young Kim ,  Hyung-Ku Kang

发明人： Jong-Jae Lee ,  Hyeon-Yong Jang ,  Ho-Young Kim ,  Hyung-Ku Kang

IPC分类号： H05B37/00

CPC分类号： H05B41/2855 ,  Y02B20/186

摘要： A method of driving a light source includes; converting an externally supplied direct current voltage into a first alternating current voltage, boosting the first alternating current voltage to a second alternating current voltage having a higher voltage than the first alternating current voltage, turning on the light source using the second alternating current voltage, detecting an arc noise detection voltage by adding arc noise generated from a high voltage terminal of the light source and arc noise generated from a low voltage terminal of the light source, and blocking the high voltage from being provided to the light source based on the detected arc noise detection voltage.

摘要翻译： 驱动光源的方法包括： 将外部供应的直流电压转换成第一交流电压，将第一交流电压升压到具有比第一交流电压更高的电压的第二交流电压，使用第二交流电压接通光源，检测 通过添加从光源的高电压端子产生的电弧噪声和从光源的低电压端子产生的电弧噪声，并且基于检测的电弧阻挡高电压而被提供给光源的电弧噪声检测电压 噪声检测电压。

公开(公告)号：US20100156777A1

公开(公告)日：2010-06-24

申请号：US12482889

申请日：2009-06-11

申请人： Hyung-Ku Kang ,  Hyeon-Yong Jang ,  Hyuk-Hwan Kim ,  Dae-Gwang Jang

发明人： Hyung-Ku Kang ,  Hyeon-Yong Jang ,  Hyuk-Hwan Kim ,  Dae-Gwang Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/342 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/026

摘要： A method of driving a light source includes; driving a plurality of light-emitting blocks included in a light source module at a uniform luminance during an initial period in response to a power-on signal, and subsequently driving the plurality of light-emitting blocks individually in accordance with respective luminances of a plurality of image blocks aligned with each of the plurality of light-emitting blocks after the initial period.

摘要翻译： 驱动光源的方法包括： 响应于电源接通信号，在初始时段期间以均匀亮度驱动包括在光源模块中的多个发光块，随后根据多个发光块的相应亮度分别驱动多个发光块 的图像块在初始时段之后与多个发光块中的每一个对准。

公开(公告)号：US08643682B2

公开(公告)日：2014-02-04

申请号：US12640505

申请日：2009-12-17

申请人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

发明人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

IPC分类号： G09G5/10

CPC分类号： G09G3/342 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2360/16

摘要： A method of driving a light source includes: determining a location of pixel data of a display relative to a plurality of light-emitting blocks of a light source, obtaining a plurality of luminance values of the light-emitting blocks corresponding to the location by using a lookup table (LUT) storing the luminance values of the light-emitting blocks, generating a plurality of histograms corresponding to the light-emitting blocks, determining a plurality of target luminance values of the light-emitting blocks using the histograms, and driving the light-emitting blocks using the determined target luminance values. The luminance values of the light-emitting blocks are based on the location of the pixel data within an image block of the display corresponding to each light-emitting block. Each of the histograms indicates a frequency of each of the luminance values of a respective one of the light-emitting blocks.

摘要翻译： 一种驱动光源的方法包括：确定显示器相对于光源的多个发光块的像素数据的位置，通过使用与多个发光块对应的发光块获得多个亮度值 存储发光块的亮度值的查找表（LUT），生成对应于发光块的多个直方图，使用直方图确定发光块的多个目标亮度值，并且驱动 使用所确定的目标亮度值的发光块。 发光块的亮度值基于与每个发光块相对应的显示器的图像块内的像素数据的位置。 每个直方图表示各个发光块的每个亮度值的频率。

公开(公告)号：US20080128717A1

公开(公告)日：2008-06-05

申请号：US11982237

申请日：2007-10-31

申请人： Hyeon-Yong Jang ,  Hyung-Ku Kang ,  Sang-Hoon Park ,  Woo Young Lee

发明人： Hyeon-Yong Jang ,  Hyung-Ku Kang ,  Sang-Hoon Park ,  Woo Young Lee

IPC分类号： H01L33/00

CPC分类号： H01L25/0753 ,  G02F2001/133612 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/00

摘要： A light-emitting diode (“LED”) package and a backlight unit having the same are disclosed. The LED package includes a package substrate, at least two LED chips arranged on the package substrate spaced apart from each other and having different brightness characteristics, a plurality of electrodes mounted on the package substrate to supply electrical power to the LED chips, and electric wires connecting the electrodes to the LED chips.

摘要翻译： 公开了一种发光二极管（“LED”）封装以及具有该发光二极管的背光单元。 LED封装包括封装基板，布置在彼此间隔开并具有不同亮度特性的封装基板上的至少两个LED芯片，安装在封装基板上以向LED芯片供电的多个电极，以及电线 将电极连接到LED芯片。

公开(公告)号：US08605030B2

公开(公告)日：2013-12-10

申请号：US12473815

申请日：2009-05-28

申请人： Hyung-Ku Kang ,  Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Yu-Han Bae ,  Hyeon-Yong Jang

发明人： Hyung-Ku Kang ,  Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Yu-Han Bae ,  Hyeon-Yong Jang

IPC分类号： G09G3/36

CPC分类号： H05B37/02 ,  G09G3/342 ,  G09G3/3426 ,  G09G3/3648 ,  G09G5/10 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2330/028 ,  G09G2360/16 ,  H05B33/0866

摘要： A light source device includes a light source module having a light-emitting block, an image analysis part, a duty ratio calculation part, a duty ratio determination part and a signal generation part. The image analysis part extracts representative luminance data of the light-emitting block based on pixel data. The duty ratio calculation part calculates duty ratio data of the light-emitting block based on the representative luminance data. The duty ratio determination part generates determined duty ratio data of the light-emitting block based on the duty ratio data from a first period, and the signal generation part generates a driving signal having a duty ratio corresponding to the determined duty ratio data to drive the light-emitting block.

摘要翻译： 光源装置包括具有发光块，图像分析部，占空比计算部，占空比确定部和信号生成部的光源模块。 图像分析部基于像素数据提取发光块的代表亮度数据。 占空比计算部根据代表亮度数据计算发光块的占空比数据。 占空比确定部分基于来自第一周期的占空比数据产生确定的发光块的占空比数据，并且信号产生部分产生具有与确定的占空比数据相对应的占空比的驱动信号，以驱动 发光块。

公开(公告)号：US20100188435A1

公开(公告)日：2010-07-29

申请号：US12640505

申请日：2009-12-17

申请人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

发明人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

IPC分类号： G09G5/10 ,  H05B37/02

CPC分类号： G09G3/342 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2360/16

摘要： A method of driving a light source includes: determining a location of pixel data of a display relative to a plurality of light-emitting blocks of a light source, obtaining a plurality of luminance values of the light-emitting blocks corresponding to the location by using a lookup table (LUT) storing the luminance values of the light-emitting blocks, generating a plurality of histograms corresponding to the light-emitting blocks, determining a plurality of target luminance values of the light-emitting blocks using the histograms, and driving the light-emitting blocks using the determined target luminance values. The luminance values of the light-emitting blocks are based on the location of the pixel data within an image block of the display corresponding to each light-emitting block. Each of the histograms indicates a frequency of each of the luminance values of a respective one of the light-emitting blocks.

摘要翻译： 一种驱动光源的方法包括：确定显示器相对于光源的多个发光块的像素数据的位置，通过使用与多个发光块对应的发光块获得多个亮度值 存储发光块的亮度值的查找表（LUT），生成对应于发光块的多个直方图，使用直方图确定发光块的多个目标亮度值，并且驱动 使用所确定的目标亮度值的发光块。 发光块的亮度值基于与每个发光块相对应的显示器的图像块内的像素数据的位置。 每个直方图表示各个发光块的每个亮度值的频率。

公开(公告)号：US08436551B2

公开(公告)日：2013-05-07

申请号：US12963801

申请日：2010-12-09

申请人： Jong-Jae Lee ,  Hyeon-Yong Jang

发明人： Jong-Jae Lee ,  Hyeon-Yong Jang

IPC分类号： G05F1/00

CPC分类号： H05B41/2921 ,  H05B41/285 ,  Y02B20/183

摘要： An arc discharge detecting circuit includes; a voltage dividing part which divides a driving voltage provided to a light source, a detecting part which includes a loop-shaped wiring spaced apart from the voltage dividing part and which detects a current corresponding to an arc discharge flowing through the voltage dividing part using a coupling capacitance generated between the loop-shaped wiring of the detecting part and a wiring of the voltage dividing part, and an output part connected to the detecting part to output a detection voltage corresponding to the arc discharge. Accordingly, the arc discharge detecting circuit may improve a sensitivity of detecting an arc discharge as a current source type using the coupling capacitors, a design may be simplified, and manufacturing costs may be decreased.

摘要翻译： 电弧放电检测电路包括： 分压部，其对提供给光源的驱动电压进行分压;检测部，其包括与分压部分间隔开的环状布线，并且检测与通过分压部的电弧放电相对应的电流，使用 在检测部的环状布线与分压部的布线之间产生的耦合电容以及与检测部连接的输出部，输出与电弧放电对应的检测电压。 因此，电弧放电检测电路可以提高使用耦合电容器作为电流源的电弧放电检测的灵敏度，可以简化设计，并且可以降低制造成本。

公开(公告)号：US08093832B2

公开(公告)日：2012-01-10

申请号：US12234074

申请日：2008-09-19

申请人： Hyeon-Yong Jang

发明人： Hyeon-Yong Jang

IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B39/02 ,  H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  G09G3/36

CPC分类号： H05B41/2856 ,  H05B41/3921

摘要： In a backlight unit and an LCD apparatus having the backlight unit, in which the backlight unit includes a plurality of lamps and an inverter, the inverter provides the lamps with current. The inverter reduces current provided to the lamps to turn off the lamps. Therefore, currents are gradually decreased to reduce noise generated by the transformer when the lamps are turned off.

摘要翻译： 在具有背光单元的背光单元和LCD装置中，背光单元包括多个灯和逆变器，逆变器为灯提供电流。 逆变器减少提供给灯的电流以关闭灯。 因此，当灯关闭时，电流逐渐减小以减小变压器产生的噪声。

公开(公告)号：US07969404B2

公开(公告)日：2011-06-28

申请号：US11552544

申请日：2006-10-25

申请人： Sang-Gil Lee ,  Hyeon-Yong Jang ,  Mun-Soo Park

发明人： Sang-Gil Lee ,  Hyeon-Yong Jang ,  Mun-Soo Park

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145

摘要： A liquid crystal display apparatus includes a backlight assembly which includes a device for driving the backlight including a light emitting diode (“LED”) used as a light source, which has a high efficiency and a high reliability for controlling brightness of each color light. The driving device drives a first, second and third LED unit emitting a first, second and third light, respectively. The driving device includes a first driving part emitting the first light in response to a brightness control signal and outputting a reference control signal in response to a first brightness of the first light, a second driving part driving the second LED units generating the second light of which second brightness is controlled in response to the reference control signal, and a third driving part driving the third LED units generating the third light of which third brightness is controlled in response to the reference control signal.

摘要翻译： 液晶显示装置包括背光组件，其包括用于驱动背光的装置，其包括用作光源的发光二极管（“LED”），其具有用于控制每种颜色光的亮度的高效率和高可靠性。 驱动装置驱动分别发射第一，第二和第三光的第一，第二和第三LED单元。 驱动装置包括响应于亮度控制信号发射第一光并响应于第一光的第一亮度而输出参考控制信号的第一驱动部分，驱动产生第二光的第二光的第二驱动部 所述第二亮度响应于所述参考控制信号而被控制;以及第三驱动部分，驱动所述第三LED单元，其响应于所述参考控制信号而产生其第三亮度被控制的第三光。

公开(公告)号：US20090108774A1

公开(公告)日：2009-04-30

申请号：US12234074

申请日：2008-09-19

申请人： Hyeon-Yong Jang

发明人： Hyeon-Yong Jang

IPC分类号： H05B41/36

CPC分类号： H05B41/2856 ,  H05B41/3921

摘要： In a backlight unit and an LCD apparatus having the backlight unit, in which the backlight unit includes a plurality of lamps and an inverter, the inverter provides the lamps with current. The inverter reduces current provided to the lamps to turn off the lamps. Therefore, currents are gradually decreased to reduce noise generated by the transformer when the lamps are turned off.

摘要翻译： 在具有背光单元的背光单元和LCD装置中，背光单元包括多个灯和逆变器，逆变器为灯提供电流。 逆变器减少提供给灯的电流以关闭灯。 因此，当灯关闭时，电流逐渐减小以减小变压器产生的噪声。