公开(公告)号：US20130162154A1

公开(公告)日：2013-06-27

申请号：US13440687

申请日：2012-04-05

申请人： Yeun Joong LEE ,  Deuk Hee Park ,  Jae Shin Lee ,  Sang Hyun Cha ,  Chang Seok Lee

发明人： Yeun Joong LEE ,  Deuk Hee Park ,  Jae Shin Lee ,  Sang Hyun Cha ,  Chang Seok Lee

IPC分类号： H05B37/00

CPC分类号： H05B33/0824 ,  H05B33/0818 ,  H05B33/0851

摘要： There is provided a driving apparatus for a light emitting diode (LED) comparing a rectified power voltage level with an LED current to limit current applied to an LED, thereby reducing the amount of heat generated therein. The driving apparatus for an LED includes a detecting unit detecting a voltage level of rectified power; and a driving unit comparing a level of current flowing in an LED unit having at least one LED with detection results from the detecting unit, and limiting current applied to the LED unit to drive the LED unit according to comparison results.

摘要翻译： 提供了一种用于将整流的电压电平与LED电流进行比较的发光二极管（LED）的驱动装置，以限制施加到LED的电流，从而减少其中产生的热量。 用于LED的驱动装置包括：检测单元，用于检测整流电源的电压电平; 以及驱动单元，比较在具有至少一个LED的LED单元中流动的电流的水平与来自检测单元的检测结果，并且根据比较结果限制施加到LED单元以驱动LED单元。

公开(公告)号：US20120299490A1

公开(公告)日：2012-11-29

申请号：US13224083

申请日：2011-09-01

申请人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

发明人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0809 ,  H05B33/0824

摘要： There is provided an LED circuit. The LED circuit may include 2N+2 light emitting units connected between a 2K−1-th node and a 2K-th node among 4N+4 (N is a natural number) nodes including a first node supplied with input voltage (K is all natural numbers equal to or smaller than 2N+2); 2N+2 switches connected between a 2K-th node and a ground (K is all natural numbers equal to or smaller than 2N+2); 2N+1 switches connected between a 2L−1-th node and a 2L+1-th node and 2N+1 switches connected between a 2L-th node and a 2L+1-th node (L is all natural numbers equal to or smaller than 2N+1); and N switches connected between the first node and a 4M+1-th node (M is all natural numbers equal to or smaller than N).

摘要翻译： 提供了一个LED电路。 LED电路可以包括连接在4N + 4（N是自然数）节点之间的第2K-1节点和第2K节点之间的2N + 2个发光单元，包括提供有输入电压的第一节点（K全为 等于或小于2N + 2的自然数）; 连接在第2K节点和地之间的2N + 2个开关（K是等于或小于2N + 2的自然数）; 连接在第2L-1节点和第2L + 1节点之间的2N + 1个开关和连接在第2L节点和第2L + 1节点之间的2N + 1个开关（L等于或等于 小于2N + 1）; 和连接在第一节点与第4M + 1节点之间的N个交换机（M等于或小于N的自然数）。

公开(公告)号：US20120306396A1

公开(公告)日：2012-12-06

申请号：US13220041

申请日：2011-08-29

申请人： Change Seok LEE ,  Yeun Joong LEE ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Jae Shin LEE

发明人： Change Seok LEE ,  Yeun Joong LEE ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Jae Shin LEE

IPC分类号： H05B37/02

CPC分类号： H05B33/0815

摘要： There are provided an LED driving apparatus and an LED driving method thereof. The LED driving apparatus includes: a light emitting unit including one or more LEDs, a rectifying unit rectifying an input signal to generate a first signal; a signal conversion unit inverting a waveform of a first signal to generate a second signal; and an operation unit arithmetically operating the first and second signals. A plurality of AC signals each having a different waveform are arithmetically operated to generate a signal having a small amount of a ripple component, and an LED is driven by the signal, thus preventing a lifespan of the LED from being shortened by omitting a smoothing electrolytic capacitor, one of main causes shortening the lifespan of an LED driving circuit.

摘要翻译： 提供了LED驱动装置及其LED驱动方法。 LED驱动装置包括：发光单元，包括一个或多个LED;整流单元对输入信号进行整流以产生第一信号; 信号转换单元，反转第一信号的波形以产生第二信号; 以及操作单元，算术地操作第一和第二信号。 每个具有不同波形的多个AC信号被算术运算以产生具有少量纹波分量的信号，并且由信号驱动LED，从而通过省略平滑电解而防止LED的寿命缩短 电容器，主要原因之一是缩短了LED驱动电路的使用寿命。

公开(公告)号：US20120299497A1

公开(公告)日：2012-11-29

申请号：US13223933

申请日：2011-09-01

申请人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

发明人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0809 ,  H05B33/0806 ,  Y02B20/348

摘要： There is provided an LED circuit including a light emitting unit including a plurality of light emitting diodes; and a switching unit switching to apply only positive voltage of an AC power supply to an anode of the light emitting unit. Through this, the LED circuit can reduce complexity of a driving circuit. Further, lifespan and efficiency of the LED circuit may be improved since an electrolytic capacitor and a bridge circuit are not used. Further, any one light emitting diode may be prevented from determining the lifespan of all of the light emitting diodes since all of the light emitting diodes are driven at all times, thereby improving the lifespan of the light emitting diode.

摘要翻译： 提供了一种LED电路，包括包括多个发光二极管的发光单元; 以及切换单元，其仅将交流电源的正电压施加到所述发光单元的阳极。 通过这种方式，LED电路可以降低驱动电路的复杂性。 此外，由于不使用电解电容器和桥式电路，因此可以提高LED电路的寿命和效率。 此外，由于所有发光二极管始终被驱动，因此可以防止任何一个发光二极管确定所有发光二极管的寿命，从而提高发光二极管的寿命。

公开(公告)号：US20130257305A1

公开(公告)日：2013-10-03

申请号：US13524663

申请日：2012-06-15

申请人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee

发明人： Yeun Joong LEE ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus satisfying regulations for current transferred to a light emitting diode. The light emitting diode driving apparatus includes: a power supplying unit receiving input power to convert the input power into a preset driving power and supplying the driving power to a light emitting diode unit including at least one light emitting diode; a detecting unit receiving the driving power supplied to the light emitting diode unit to detect voltage flowing in the light emitting diode unit; a controlling unit comparing detection voltage detected by the detecting unit with a preset reference voltage to control a power conversion operation of the power supplying unit; and a driving unit driving the power conversion operation according to controlling by the controlling unit.

摘要翻译： 提供了满足对传输到发光二极管的电流的规定的发光二极管驱动装置。 发光二极管驱动装置包括：供电单元，其接收输入功率以将输入功率转换为预设驱动功率，并将驱动功率提供给包括至少一个发光二极管的发光二极管单元; 接收提供给所述发光二极管单元的驱动电力以检测在所述发光二极管单元中流动的电压的检测单元; 将由所述检测单元检测出的检测电压与预先设定的基准电压进行比较的控制单元，对所述供电单元的电力变换动作进行控制; 以及驱动单元，其根据控制单元的控制驱动电力转换操作。

公开(公告)号：US20120056866A1

公开(公告)日：2012-03-08

申请号：US13116472

申请日：2011-05-26

申请人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

发明人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

IPC分类号： G09G3/30 ,  G06F3/038

CPC分类号： G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/10

摘要： There is provided an active matrix organic light emitting diode (AMOLED) display including a driver generating analog driving signals based on previously prepared driving data; a pixel unit including an organic light emitting diode connected between first and second power supply terminals receiving first and second power, respectively, charging values equivalent to the driving data according to the driving signals and simultaneously detecting the driving signals in order to detect deterioration in a preset tracking period, allowing current to flow through the organic light emitting diode according to the values charged in the tracking period in a preset holding period, and setting a reset period between the holding period and a tracking period subsequent thereto to reset the charged values; and an ADC detecting a deterioration voltage corresponding to the driving signals having deterioration information of the organic light emitting diode of the pixel unit in the tracking period.

摘要翻译： 提供了一种有源矩阵有机发光二极管（AMOLED）显示器，其包括基于先前准备的驱动数据产生模拟驱动信号的驱动器; 一个像素单元，包括连接在第一和第二电源端子之间的有机发光二极管，分别接收根据驱动信号的与驱动数据相当的充电值，同时检测驱动信号以检测 预设的跟踪期间，根据预设的保持期间的跟踪期间的充电值，使电流流过有机发光二极管，并设定保持期间与其之后的跟踪期间的复位期间，使充电值复位; 以及ADC，其在跟踪期间检测与具有像素单元的有机发光二极管的劣化信息的驱动信号相对应的劣化电压。

公开(公告)号：US20120044271A1

公开(公告)日：2012-02-23

申请号：US13115403

申请日：2011-05-25

申请人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

发明人： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

IPC分类号： G09G3/32 ,  G09G5/10

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043

摘要： There is provided an active matrix organic light emitting diode display including: a data driving unit converting previously prepared correction data into a correction signal and generates a driving signal according to the analog correction signal; a pixel unit having an organic light emitting diode (OLED) between first and second power supply terminals receiving first and second powers, respectively, charging a value corresponding to the correction data according to the driving signal in a predetermined programming period, detecting the driving signal in order to detect deterioration, and allowing current to flow through the OLED according to the value charged in the predetermined programming period in a predetermined holding period; and an ADC detecting deterioration voltage corresponding to the driving signal having deterioration information of the OLED of the pixel unit in the holding period.

摘要翻译： 提供了一种有源矩阵有机发光二极管显示器，包括：数据驱动单元，将预先准备的校正数据转换为校正信号，并根据模拟校正信号产生驱动信号; 在第一和第二电源端子之间分别接收第一和第二功率的有机发光二极管（OLED）的像素单元，分别在预定编程周期内根据驱动信号对与校正数据相对应的值进行充电，检测驱动信号 以便检测劣化，并允许电流在预定的保持期内根据在预定编程周期内充电的值流过OLED; 以及在保持期间，检测与具有像素单元的OLED的劣化信息的驱动信号相对应的劣化电压的ADC。