公开(公告)号：US20120032991A1

公开(公告)日：2012-02-09

申请号：US13034060

申请日：2011-02-24

申请人： Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

发明人： Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

IPC分类号： G09G5/00 ,  G09G3/14 ,  G09G5/10

CPC分类号： G09G3/3208 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2320/0693

摘要： There is provided an organic light emitting diode driver being capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof. The organic light emitting diode driver includes a converting unit converting input data into compensation data used to selectively compensate for pixel deterioration depending on whether the input data has been calibrated or not; a driving unit driving pixels of a pixel unit based on the compensation data from the converting unit; and a compensating unit providing the converting unit with a deterioration compensation signal based on deterioration information obtained from a pixel driven by the driving unit.

摘要翻译： 提供了一种有机发光二极管驱动器，其能够通过选择性地补偿要求补偿的劣化的像素来补偿在像素驱动期间实时的像素劣化。 有机发光二极管驱动器包括转换单元，其将输入数据转换成用于根据输入数据是否被校准来选择性地补偿像素劣化的补偿数据; 基于来自所述转换单元的补偿数据驱动像素单元的像素的驱动单元; 以及补偿单元，其基于从由所述驱动单元驱动的像素获得的劣化信息，向所述转换单元提供劣化补偿信号。

公开(公告)号：US08917025B2

公开(公告)日：2014-12-23

申请号：US13605101

申请日：2012-09-06

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

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

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US20130076253A1

公开(公告)日：2013-03-28

申请号：US13605101

申请日：2012-09-06

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

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

IPC分类号： H05B37/00

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US09055640B2

公开(公告)日：2015-06-09

申请号：US13494543

申请日：2012-06-12

申请人： Jung Eui Park ,  Bo Hyun Hwang ,  Seo Hyung Kim ,  Jae Shin Lee ,  Dae Hoon Han ,  Seung Kon Kong

发明人： Jung Eui Park ,  Bo Hyun Hwang ,  Seo Hyung Kim ,  Jae Shin Lee ,  Dae Hoon Han ,  Seung Kon Kong

IPC分类号： H05B33/08

CPC分类号： H05B33/0827

摘要： There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.

摘要翻译： 提供了能够均匀地保持发光二极管通道之间的电流平衡的发光二极管驱动装置。 发光二极管驱动装置包括：直流/直流转换单元，将直流电转换成可设定的驱动电力; 检测单元，检测在每个具有多个发光二极管的多个发光二极管通道中的每一个中产生的电压降; 转换单元，将模拟值转换为数字值; 以及驱动单元，根据来自转换单元的数字值差分地设置开关信号的占空比，以驱动多个发光二极管通道。

公开(公告)号：US08289091B2

公开(公告)日：2012-10-16

申请号：US13005054

申请日：2011-01-12

申请人： Jeong Mo Yang ,  Changsik Yoo ,  Young Jin Moon ,  Yong Seong Roh ,  Joong Ho Choi ,  Jae Shin Lee ,  Jung Chul Gong ,  Yu Jin Jang

发明人： Jeong Mo Yang ,  Changsik Yoo ,  Young Jin Moon ,  Yong Seong Roh ,  Joong Ho Choi ,  Jae Shin Lee ,  Jung Chul Gong ,  Yu Jin Jang

IPC分类号： H03K3/26

CPC分类号： H03K3/354 ,  H03K3/0231 ,  H03K3/03 ,  H03K5/1534

摘要： A relaxation oscillator includes a ramp wave generator configured to generate a ramp wave by complementary first capacitor module charged and discharged according to a first switching signal and second capacitor module charged and discharged according to a second switching signal, a negative feedback circuit unit configured to generate a compensation voltage for compensating an error between the ramp wave and a reference voltage through a feedback of the ramp wave, and a switching signal generator configured to generate the first switching signal and the second switching signal from the compensation voltage and the ramp wave, including a peak voltage storage unit configured to store a peak voltage of the ramp wave that is controlled to be equal to the reference voltage based on the compensation voltage and a peak voltage transfer unit configured to transfer the peak voltage of the ramp wave to the negative feedback unit.

摘要翻译： 张弛振荡器包括：斜波发生器，被配置为根据第一开关信号进行充放电的互补第一电容器模块和根据第二开关信号充放电的第二电容器模块产生斜波;负反馈电路单元，被配置为产生 补偿电压，用于通过斜坡波的反馈补偿斜坡波与参考电压之间的误差;以及切换信号发生器，被配置为从补偿电压和斜波产生第一切换信号和第二切换信号，包括 峰值电压存储单元，被配置为基于补偿电压来存储被控制为等于参考电压的斜波的峰值电压;以及峰值电压传送单元，其被配置为将斜波的峰值电压传递到负反馈 单元。

公开(公告)号：US20100244713A1

公开(公告)日：2010-09-30

申请号：US12572643

申请日：2009-10-02

申请人： Jae Shin Lee ,  Hak Sun Kim ,  Woo Chul Jeon

发明人： Jae Shin Lee ,  Hak Sun Kim ,  Woo Chul Jeon

IPC分类号： H05B37/02

CPC分类号： H05B33/0809

摘要： An illumination apparatus using a light emitting diode is directly driven by an alternating current (AC) power source, displays colors and simultaneously controls a color's brightness level. The illumination apparatus includes a power terminal unit to which an AC power source is applied; a variable current unit connected to one end of the power terminal unit, dividing current provided from the power terminal unit into a plurality of current levels, and including first, second and third variable current units controlling the plurality of divided current levels, respectively; and a light emitting unit including red, green, and blue light emitting units, respectively disposed between the first variable current unit and the other end of the power terminal unit, between the second variable current unit and the other end of the power terminal unit, and between the third variable current unit and the other end of the power terminal unit.

摘要翻译： 使用发光二极管的照明装置由交流（AC）电源直接驱动，显示颜色并同时控制颜色的亮度级。 照明装置包括：电源端子单元，AC电源被施加到该电源端子单元; 连接到所述电力终端单元的一端的可变电流单元，将从所述电力端子单元提供的电流分为多个电流水平，并且包括分别控制所述多个分压电流电平的第一，第二和第三可变电流单元; 以及发光单元，其包括红色，绿色和蓝色发光单元，分别设置在第一可变电流单元和电力端子单元的另一端之间，位于第二可变电流单元与电力端子单元的另一端之间， 并且在第三可变电流单元和电力端子单元的另一端之间。

公开(公告)号：US20130249418A1

公开(公告)日：2013-09-26

申请号：US13494543

申请日：2012-06-12

申请人： Jung Eui PARK ,  Bo Hyun Hwang ,  Seo Hyung Kim ,  Jae Shin Lee ,  Dae Hoon Han ,  Seung Kon Kong

发明人： Jung Eui PARK ,  Bo Hyun Hwang ,  Seo Hyung Kim ,  Jae Shin Lee ,  Dae Hoon Han ,  Seung Kon Kong

IPC分类号： H05B37/02

CPC分类号： H05B33/0827

摘要： There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.

摘要翻译： 提供了能够均匀地保持发光二极管通道之间的电流平衡的发光二极管驱动装置。 发光二极管驱动装置包括：直流/直流转换单元，将直流电转换成可设定的驱动电力; 检测单元，检测在每个具有多个发光二极管的多个发光二极管通道中的每一个中产生的电压降; 转换单元，将模拟值转换为数字值; 以及驱动单元，根据来自转换单元的数字值差分地设置开关信号的占空比，以驱动多个发光二极管通道。

公开(公告)号：US08541953B2

公开(公告)日：2013-09-24

申请号：US13109535

申请日：2011-05-17

申请人： Bo Hyun Hwang ,  Jung Sun Kwon ,  Jung Hyun Kim ,  Seung Kon Kong ,  Jae Shin Lee ,  Joon Youp Sung

发明人： Bo Hyun Hwang ,  Jung Sun Kwon ,  Jung Hyun Kim ,  Seung Kon Kong ,  Jae Shin Lee ,  Joon Youp Sung

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0842

摘要： Disclosed herein is a light emitting diode (LED) driving device for driving a multi-channel LED element or an LED array for each channel, the LED driving device including: a constant current driver driving currents flowing in each channel; a first switching unit selectively feeding-back voltage levels of each channel; and a switching controller controlling the turn on/off of the first switching unit, wherein matching characteristics of currents flowing in each channel is improved and a size of an integrated circuit (IC) chip is also reduced as compared to a case according to the related art, thereby making it possible to reduce a production cost and satisfy the trend of miniaturization of the chip, while solving a performance deterioration problem due to degradation of the matching of the currents between the channels.

摘要翻译： 本发明公开了一种用于驱动每个通道的多通道LED元件或LED阵列的发光二极管（LED）驱动装置，该LED驱动装置包括：驱动在每个通道中流动的电流的恒流驱动器; 第一开关单元选择性地反馈每个通道的电压电平; 以及控制第一开关单元的接通/断开的开关控制器，其中改善了在每个通道中流动的电流的匹配特性，并且与根据相关的情况相比，集成电路（IC）芯片的尺寸也降低 从而可以降低生产成本并满足芯片小型化的趋势，同时解决由于通道之间的电流匹配劣化引起的性能劣化问题。

公开(公告)号：US08421365B2

公开(公告)日：2013-04-16

申请号：US12770953

申请日：2010-04-30

申请人： Seung Kon Kong ,  Jae Shin Lee ,  Jung Hyun Kim ,  Jung Sun Kwon ,  Bo Hyun Hwang

发明人： Seung Kon Kong ,  Jae Shin Lee ,  Jung Hyun Kim ,  Jung Sun Kwon ,  Bo Hyun Hwang

IPC分类号： H05B39/02

CPC分类号： H05B33/0827 ,  H05B33/0818

摘要： An apparatus for driving a light emitting device (LED) is provided. The apparatus for driving the LED includes a first driving control element, a first current detection unit, a first effective value detection unit, a first reference signal generation unit, and a first comparison unit. The first driving control element controls a current flowing through a first LED channel, in response to a first pulse-width modulated control signal. The first current detection unit detects the current flowing through the first LED channel. The first effective value detection unit detects an effective value of the current detected by the first current detection unit. The first reference signal generation unit generates a preset reference signal having a sawtooth waveform. The first comparison unit compares the reference signal from the first reference signal generation unit with the effective value from the first effective value detection unit.

摘要翻译： 提供了一种用于驱动发光器件（LED）的装置。 用于驱动LED的装置包括第一驱动控制元件，第一电流检测单元，第一有效值检测单元，第一参考信号生成单元和第一比较单元。 响应于第一脉冲宽度调制控制信号，第一驱动控制元件控制流过第一LED通道的电流。 第一电流检测单元检测流过第一LED通道的电流。 第一有效值检测单元检测由第一电流检测单元检测到的电流的有效值。 第一参考信号产生单元产生具有锯齿波形的预设参考信号。 第一比较单元将来自第一参考信号生成单元的参考信号与来自第一有效值检测单元的有效值进行比较。

公开(公告)号：US20120212152A1

公开(公告)日：2012-08-23

申请号：US13108535

申请日：2011-05-16

申请人： Bo Hyun HWANG ,  Jung Sun Kwon ,  Seung Kon Kong ,  Jung Hyun Kim ,  Jae Shin Lee ,  Joon Youp Sung

发明人： Bo Hyun HWANG ,  Jung Sun Kwon ,  Seung Kon Kong ,  Jung Hyun Kim ,  Jae Shin Lee ,  Joon Youp Sung

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0818

摘要： Disclosed herein is a light emitting diode (LED) driving device for driving a multi-channel LED element or an LED array for each channel, the LED driving device including: a constant current driver driving currents flowing in each channel; and a minimum voltage selector receiving voltage levels of each channel and selecting a minimum voltage level to thereby feedback the selected minimum voltage level to the constant current driver, wherein matching characteristics of currents flowing in each channel is improved and a size of an integrated circuit (IC) chip is also reduced as compared to a case according to the related art, thereby making it possible to reduce a production cost and satisfy the trend of miniaturization of the chip, while solving a performance deterioration problem due to deterioration of the matching of the currents between the channels.

摘要翻译： 本发明公开了一种用于驱动每个通道的多通道LED元件或LED阵列的发光二极管（LED）驱动装置，该LED驱动装置包括：驱动在每个通道中流动的电流的恒流驱动器; 以及最小电压选择器，其接收每个通道的电压电平并选择最小电压电平，从而将所选择的最小电压电平反馈给恒流驱动器，其中提高了在每个通道中流动的电流的匹配特性，并且集成电路 IC）芯片与现有技术的情况相比也降低，从而可以降低生产成本并满足芯片小型化的趋势，同时解决由于匹配引起的性能劣化问题 通道之间的电流。