公开(公告)号：US20130050288A1

公开(公告)日：2013-02-28

申请号：US13586059

申请日：2012-08-15

Applicant: Tae-kyoung Kang ,  Gyo-ho Lim ,  Hyoung-kyu Kim

Inventor： Tae-kyoung Kang ,  Gyo-ho Lim ,  Hyoung-kyu Kim

IPC: H05B37/02 ,  G09G3/36 ,  G09G5/10

CPC classification number: H05B33/0887 ,  G09G3/3406 ,  G09G2310/08 ,  G09G2320/064 ,  G09G2330/12 ,  H05B33/0815 ,  Y02B20/346

Abstract: A Light Emitting Diode (LED) driving apparatus and a method of driving a LED backlight unit are provided. An LED driving apparatus includes: an input unit configured to receive a dimming signal, an extension unit configured to extend ON time of the inputted dimming signal, an LED driving unit configured to drive an LED array using the extended dimming signal, and a detection unit configured to detect a degradation of the LED array by measuring a forward voltage between the LED array and the LED driving unit.

Abstract translation: 提供发光二极管（LED）驱动装置和驱动LED背光单元的方法。 一种LED驱动装置，包括：被配置为接收调光信号的输入单元，被配置为延长所输入的调光信号的接通时间的扩展单元，配置成使用所述扩展调光信号驱动LED阵列的LED驱动单元，以及检测单元 被配置为通过测量LED阵列和LED驱动单元之间的正向电压来检测LED阵列的劣化。

公开(公告)号：US20130147360A1

公开(公告)日：2013-06-13

申请号：US13693223

申请日：2012-12-04

Applicant: Tae-kyoung Kang

Inventor： Tae-kyoung Kang

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/346

Abstract: A light-emitting diode (LED) driver apparatus is provided. The LED driver apparatus includes a pulse width modulation (PWM) signal generating unit, a DC-DC converter, and a comparison voltage generating unit. The PWM signal generating unit generates a PWM signal according to a comparison voltage. The DC-DC converter supplies a driving voltage of an LED array by using the PWM signal. The comparison voltage generating unit measures a feedback voltage of the LED array and supplies a difference between the measured feedback voltage and a target voltage as a comparison voltage to the PWM signal generating unit. The comparison voltage generating unit supplies a second reference voltage as a comparison voltage to the PWM signal generating unit from a time when the driving voltage is higher than or equal to a first reference voltage to a time when the driving voltage reaches the target voltage.

Abstract translation: 提供了一种发光二极管（LED）驱动器装置。 LED驱动器装置包括脉冲宽度调制（PWM）信号发生单元，DC-DC转换器和比较电压产生单元。 PWM信号生成单元根据比较电压生成PWM信号。 DC-DC转换器通过使用PWM信号提供LED阵列的驱动电压。 比较电压产生单元测量LED阵列的反馈电压，并将所测量的反馈电压和目标电压之间的差作为比较电压提供给PWM信号产生单元。 比较电压产生单元从驱动电压高于或等于第一参考电压的时间到驱动电压达到目标电压的时间，向PWM信号产生单元提供作为比较电压的第二参考电压。

公开(公告)号：US20120212141A1

公开(公告)日：2012-08-23

申请号：US13397864

申请日：2012-02-16

Applicant: Beom-seon Ryu ,  Chang-sik Lim ,  Tae-kyoung Kang

Inventor： Beom-seon Ryu ,  Chang-sik Lim ,  Tae-kyoung Kang

IPC: H05B37/02

CPC classification number: H05B33/0827

Abstract: A Light Emitting Diode (LED) driver circuit and a Pulse Width Modulation (PWM) controlling circuit thereof is provided. The LED driver circuit includes a voltage detector connected to a plurality of LED arrays, the voltage detector being configured to determine a connection status of each of the LED arrays according to a level of a feedback voltage of each of the LED arrays, and detect a minimum feedback voltage from the feedback voltage of each of the LED arrays that are determined to be connected, a controller configured to output a control signal to control boosting of the LED arrays according to the detected minimum feedback voltage, a PWM signal generator configured to output a PWM signal corresponding to the outputted control signal, and a driving voltage generator configured to supply a driving voltage commonly to the LED arrays according to the PWM signal.

Abstract translation: 提供了一种发光二极管（LED）驱动电路及其脉宽调制（PWM）控制电路。 LED驱动器电路包括连接到多个LED阵列的电压检测器，电压检测器被配置为根据每个LED阵列的反馈电压的电平来确定每个LED阵列的连接状态，并且检测 确定要连接的每个LED阵列的反馈电压的最小反馈电压，被配置为输出控制信号以根据检测到的最小反馈电压来控制LED阵列升压的控制器; PWM信号发生器，被配置为输出 对应于所输出的控制信号的PWM信号;以及驱动电压发生器，被配置为根据PWM信号向LED阵列提供共同的驱动电压。

公开(公告)号：US07230377B2

公开(公告)日：2007-06-12

申请号：US10934696

申请日：2004-09-07

Applicant: Tae-kyoung Kang

Inventor： Tae-kyoung Kang

IPC: H01J17/49

CPC classification number: H01J11/12 ,  H01J11/36 ,  H01J11/54 ,  H01J2211/365 ,  H01J2211/444

Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.

Abstract translation: 一种等离子体显示面板，包括第一面板，以预定图案形成在第一面板上的寻址电极，形成在第一面板上并覆盖寻址电极的第一电介质层，具有不连续地形成在第一介电层上的单元分隔的分隔结构， 分隔放电空间，单元分隔平行于寻址电极，并且每个具有辅助隔板，涂覆在分隔放电空间中的红色，绿色和蓝色荧光体层，第二面板，其耦合到第一面板以形成放电空间 并且其是透明的，形成在所述第二面板的内表面上并且相对于所述寻址电极具有预定角度的第一和第二电极组的多对维持电极，以及形成在所述第二面板上的第二电介质层 并覆盖维持电极。

公开(公告)号：US20050023979A1

公开(公告)日：2005-02-03

申请号：US10934696

申请日：2004-09-07

Applicant: Tae-kyoung Kang

Inventor： Tae-kyoung Kang

IPC: H01J11/12 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/34 ,  H01J11/36 ,  H01J11/44 ,  H01J11/54 ,  H01J17/49

CPC classification number: H01J11/12 ,  H01J11/36 ,  H01J11/54 ,  H01J2211/365 ,  H01J2211/444

Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.

公开(公告)号：US08941327B2

公开(公告)日：2015-01-27

申请号：US13397864

申请日：2012-02-16

Applicant: Beom-seon Ryu ,  Chang-sik Lim ,  Tae-kyoung Kang

Inventor： Beom-seon Ryu ,  Chang-sik Lim ,  Tae-kyoung Kang

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0827

Abstract: A Light Emitting Diode (LED) driver circuit and a Pulse Width Modulation (PWM) controlling circuit thereof is provided. The LED driver circuit includes a voltage detector connected to a plurality of LED arrays, the voltage detector being configured to determine a connection status of each of the LED arrays according to a level of a feedback voltage of each of the LED arrays, and detect a minimum feedback voltage from the feedback voltage of each of the LED arrays that are determined to be connected, a controller configured to output a control signal to control boosting of the LED arrays according to the detected minimum feedback voltage, a PWM signal generator configured to output a PWM signal corresponding to the outputted control signal, and a driving voltage generator configured to supply a driving voltage commonly to the LED arrays according to the PWM signal.

Abstract translation: 提供了一种发光二极管（LED）驱动电路及其脉宽调制（PWM）控制电路。 LED驱动器电路包括连接到多个LED阵列的电压检测器，电压检测器被配置为根据每个LED阵列的反馈电压的电平来确定每个LED阵列的连接状态，并且检测 确定要连接的每个LED阵列的反馈电压的最小反馈电压，被配置为输出控制信号以根据检测到的最小反馈电压来控制LED阵列升压的控制器; PWM信号发生器，被配置为输出 对应于所输出的控制信号的PWM信号;以及驱动电压发生器，被配置为根据PWM信号向LED阵列提供共同的驱动电压。

公开(公告)号：US20120313536A1

公开(公告)日：2012-12-13

申请号：US13487738

申请日：2012-06-04

Applicant: Hyoung-kyu Kim ,  Tae-kyoung Kang ,  Gyu-ho Lim ,  Jin-wook Kim

Inventor： Hyoung-kyu Kim ,  Tae-kyoung Kang ,  Gyu-ho Lim ,  Jin-wook Kim

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  H05B33/0884 ,  Y02B20/346

Abstract: A LED driving circuit having a sensing unit is disclosed. The LED driving circuit includes an input unit configured to receive a dimming signal to drive an LED array, a DC-DC converter including a power transistor configured to perform a switching operation, the DC-DC converter being configured to provide an output voltage to the LED array by the switching operation, a PWM signal generating unit configured to provide a PWM signal to adjust power of the LED array to the power transistor, a LED driving unit configured to drive the LED array using the dimming signal, and a sensing unit configured to sense degradation of the power transistor.

Abstract translation: 公开了一种具有感测单元的LED驱动电路。 LED驱动电路包括：被配置为接收调光信号以驱动LED阵列的输入单元; DC-DC转换器，包括被配置为执行开关操作的功率晶体管，DC-DC转换器被配置为向 LED阵列，PWM信号生成单元，被配置为提供PWM信号以将LED阵列的功率调整到功率晶体管; LED驱动单元，被配置为使用调光信号驱动LED阵列;以及感测单元，被配置为 以感测功率晶体管的劣化。

公开(公告)号：US06841928B2

公开(公告)日：2005-01-11

申请号：US09842857

申请日：2001-04-27

Applicant: Tae-kyoung Kang

Inventor： Tae-kyoung Kang

IPC: H01J11/12 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/34 ,  H01J11/36 ,  H01J11/44 ,  H01J11/54 ,  H01J1/62

CPC classification number: H01J11/12 ,  H01J11/36 ,  H01J11/54 ,  H01J2211/365 ,  H01J2211/444

Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.

Abstract translation: 一种等离子体显示面板，包括第一面板，以预定图案形成在第一面板上的寻址电极，形成在第一面板上并覆盖寻址电极的第一电介质层，具有不连续地形成在第一介电层上的单元分隔的分隔结构， 分隔放电空间，单元分隔平行于寻址电极，并且每个具有辅助隔板，涂覆在分隔放电空间中的红色，绿色和蓝色磷光体层，第二面板，其耦合到第一面板以形成放电空间 并且其是透明的，形成在所述第二面板的内表面上并且相对于所述寻址电极具有预定角度的第一和第二电极组的多对维持电极，以及形成在所述第二面板上的第二电介质层 并覆盖维持电极。