公开(公告)号：US20120146530A1

公开(公告)日：2012-06-14

申请号：US13117691

申请日：2011-05-27

申请人： Dae Hoon HAN ,  Jeong In CHEON ,  Jae Shin LEE

发明人： Dae Hoon HAN ,  Jeong In CHEON ,  Jae Shin LEE

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： The present, invention relates to a light emitting diode driver that integrates a light emitting diode control function and a power switching control function at a secondary side insulated from a primary side in a power supply circuit, without using a photo coupler to control power switching at the primary side.

摘要翻译： 本发明涉及一种发光二极管驱动器，其在电源电路中将与发光二极管控制功能和功率切换控制功能集成在与初级侧绝缘的次级侧，而不使用光耦合器来控制功率切换 主要方面。

公开(公告)号：US20110140627A1

公开(公告)日：2011-06-16

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： H05B37/02

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：US20120161662A1

公开(公告)日：2012-06-28

申请号：US13069558

申请日：2011-03-23

申请人： Jung Hyun KIM ,  Bo Hyun HWANG ,  Jung Sun KWON ,  Seung Kon KONG ,  Jae Shin LEE ,  Joon Youp SUNG

发明人： Jung Hyun KIM ,  Bo Hyun HWANG ,  Jung Sun KWON ,  Seung Kon KONG ,  Jae Shin LEE ,  Joon Youp SUNG

IPC分类号： H05B41/16 ,  H03K7/08

CPC分类号： H05B33/0842 ,  H05B33/0818 ,  H05B33/0824 ,  Y02B20/346

摘要： There is provided a digital PWM generator according to a first exemplary embodiment of the present invention including: an A/D converter dividing a predetermined reference voltage into a plurality of sections corresponding to a predetermined first set value, searching a section to which the magnitude of an input voltage Vin corresponds, among the plurality of sections, and converting a value corresponding to the searched section into a digital signal; a frequency selector providing a counting number by counting a predetermined high-speed counting clock during a one-cycle section of a predetermined reference clock; and a PWM signal generator converting the digital signal from the A/D converter into a ratio value corresponding to a ratio for the reference voltage and generating a PWM signal having a controlled duty ratio of the reference clock by using the ratio value and the counting number from the frequency selector.

摘要翻译： 提供了根据本发明的第一示例性实施例的数字PWM发生器，包括：A / D转换器，将预定的参考电压分成对应于预定的第一设定值的多个部分， 在多个部分中，输入电压Vin对应于将与搜索到的部分相对应的值转换为数字信号; 频率选择器，通过在预定参考时钟的一个周期段内对预定的高速计数时钟进行计数来提供计数数; 以及PWM信号发生器，其将来自A / D转换器的数字信号转换成与参考电压的比率相对应的比值，并通过使用比值和计数数来产生具有参考时钟的受控占空比的PWM信号 从频率选择器。

公开(公告)号：US20120086515A1

公开(公告)日：2012-04-12

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： H03K3/353

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

摘要： There is provided relaxation oscillator. The relaxation oscillator includes: a ramp wave generator generating ramp waves by a complementary operation between a first capacitor module charged and discharged according to a first switching signal and a second capacitor module charged and discharged according to a second switching signal; a negative feedback circuit unit generating a compensation voltage for compensating errors with reference voltage by being fedback with the ramp waves; and a switching signal generator generating the first switching signal controlling the charging and discharging of the first capacitor module and the second switching signal controlling the charging and discharging of the second capacitor module from the compensation voltage and the ramp waves. As a result, the present invention can generate ramp waves having a stable frequency while preventing a frequency from being changed due to a delay or an offset of the comparator.

摘要翻译： 提供放松振荡器。 张弛振荡器包括：斜波发生器，通过根据第一开关信号充电和放电的第一电容器模块与根据第二开关信号充放电的第二电容器模块之间的互补操作产生斜波; 负反馈电路单元，通过与斜波反馈产生用于通过参考电压补偿误差的补偿电压; 以及切换信号发生器，其产生控制第一电容器模块的充电和放电的第一开关信号和控制第二电容器模块从补偿电压和斜波的充电和放电的第二开关信号。 结果，本发明可以产生具有稳定频率的斜坡波，同时防止频率由于比较器的延迟或偏移而改变。

公开(公告)号：US20120044235A1

公开(公告)日：2012-02-23

申请号：US13079386

申请日：2011-04-04

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

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

IPC分类号： G09G3/32 ,  G09G5/00

CPC分类号： G09G3/3233 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045

摘要： There is provided an active matrix organic light emitting diode display, including a data driver converting pre-prepared correction data into an analog correction signal and generating a driving signal according to the analog correction signal, a selector selecting a charging path for programming, according to the driving signal in a preset programming period and selecting a deterioration detection path in a preset emission period, a pixel unit including an organic light-emitting diode connected between a power supply receiving power and a ground, charging a value corresponding to the correction data according to the driving signal in the programming period, and allowing current to flow to the organic light-emitting diode according to the charged value in the emission period, and an ADC detecting deterioration voltage having deterioration information of the organic light-emitting diode of the pixel unit in the emission period.

摘要翻译： 提供了一种有源矩阵有机发光二极管显示器，包括数据驱动器，将预先准备好的校正数据转换成模拟校正信号，并根据模拟校正信号产生驱动信号;选择器，根据 所述驱动信号在预设的编程周期中，并且在预设发射周期中选择劣化检测路径，包括连接在电源接收功率和地之间的有机发光二极管的像素单元，对与校正数据相对应的值进行充电， 与编程期间的驱动信号相对应，并且根据发光期间的充电值允许电流流向有机发光二极管，并且ADC检测劣化电压，其具有像素的有机发光二极管的劣化信息 单位在排放期。

公开(公告)号：US20120074859A1

公开(公告)日：2012-03-29

申请号：US13186110

申请日：2011-07-19

申请人： Seung Kon KONG ,  Jae Shin LEE ,  Bo Hyun HWANG ,  Jung Hyun KIM ,  Jung Eui PARK ,  Joon Youp SUNG

发明人： Seung Kon KONG ,  Jae Shin LEE ,  Bo Hyun HWANG ,  Jung Hyun KIM ,  Jung Eui PARK ,  Joon Youp SUNG

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0848

摘要： There is provided a driver for light emitting diodes capable of differently setting duties in which driving current flows depending on respective light emitting diode (LED) channels according to a voltage deviation between the LED channels in order to reduce heat generated due to the voltage deviation between the LED channels. The driver for LEDs includes: a detecting unit detecting a voltage drop generated in each of a plurality of LED channels receiving driving power having a preset voltage level; a converting unit converting detected analog values from the detecting unit into digital values; and a driving unit differently setting switching duties in which driving current flows in each of the plurality of LED channels according to the digital values from the converting unit to drive the plurality of LED channels.

摘要翻译： 提供了一种用于发光二极管的驱动器，其能够根据LED通道之间的电压偏差，根据各个发光二极管（LED）通道驱动电流而不同地设定工作，以便减少由于LED通道之间的电压偏差而产生的热量 LED通道。 用于LED的驱动器包括：检测单元，其检测在多个LED通道中的每一个中产生的电压降，其接收具有预设电压电平的驱动功率; 转换单元将来自检测单元的检测到的模拟值转换为数字值; 以及驱动单元，其根据来自转换单元的数字值，驱动电流在多个LED通道中的每一个流动，切换负荷不同，以驱动多个LED通道。

公开(公告)号：US20110317536A1

公开(公告)日：2011-12-29

申请号：US12915537

申请日：2010-10-29

申请人： Sang Hyun CHA ,  Deuk Hee PARK ,  Jae Shin LEE

发明人： Sang Hyun CHA ,  Deuk Hee PARK ,  Jae Shin LEE

IPC分类号： G11B7/00 ,  H03K3/00

CPC分类号： G11B7/126 ,  G11B2220/2537

摘要： Disclosed herein are a current driving circuit and a light storage system having the same. The current driving circuit includes a plurality of channel circuits that include a first transistor into which the input current flows, a second transistor generating the output current by mirroring the input current, a plurality of switches connected between the first and second transistors in parallel and optionally electrically connecting the first and second transistors in response to the control signals, a controller optionally activating the control signals each corresponding to the switches according to the magnitude of the input current; and an adder that adds output currents of the channel circuits to generate driving current. The current driving circuit can stably supply the driving current while preventing a delay in the driving current.

摘要翻译： 这里公开了一种电流驱动电路和具有该驱动电路的光存储系统。 电流驱动电路包括多个沟道电路，其包括输入电流流入的第一晶体管，通过镜像输入电流产生输出电流的第二晶体管，并联连接在第一和第二晶体管之间的多个开关， 响应于所述控制信号电连接所述第一和第二晶体管，控制器根据所述输入电流的大小可选地启动每个对应于所述开关的控制信号; 以及加法器，其增加通道电路的输出电流以产生驱动电流。 电流驱动电路可以稳定地提供驱动电流，同时防止驱动电流的延迟。

公开(公告)号：US20120056869A1

公开(公告)日：2012-03-08

申请号：US13093986

申请日：2011-04-26

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

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

IPC分类号： G09G3/12 ,  G09G3/30

CPC分类号： G09G3/3208 ,  G09G3/3275 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2340/16 ,  G09G2360/16

摘要： There is provided an organic light emitting diode driver 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 converter converting input data into compensation data used to selectively compensate for pixel deterioration according to whether or no the input data has been calibrated; a driver driving pixels of a pixel unit according to the compensation data from the converter; and a compensator providing the converter with a deterioration compensation signal according to deterioration information obtained from a pixel driven by the driver.

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需要补偿的像素的劣化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：转换器，其将输入数据转换成用于根据是否已经校准了输入数据来选择性地补偿像素劣化的补偿数据; 根据来自转换器的补偿数据驱动像素单元的像素的驱动器; 以及补偿器，根据从由驾驶员驱动的像素获得的劣化信息向转换器提供劣化补偿信号。

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：US20120044360A1

公开(公告)日：2012-02-23

申请号：US13093918

申请日：2011-04-26

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

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

IPC分类号： H04N17/02

CPC分类号： G09G3/3225 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0693

摘要： Disclosed is a deterioration sensing apparatus for a display device, capable of rapidly sensing deterioration by pre-charging a sensing voltage in adjacent pixels while a deterioration of a single pixel is sensed in a display device having a plurality of pixels, in, particular, an organic light emitting diode panel.

摘要翻译： 公开了一种用于显示装置的劣化感测装置，其能够在具有多个像素的显示装置中感测到单个像素的劣化时，通过对相邻像素中的感测电压进行预充电来快速感测到劣化，特别地， 有机发光二极管面板。