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：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。

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：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：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：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。

公开(公告)号：US20130134901A1

公开(公告)日：2013-05-30

申请号：US13451297

申请日：2012-04-19

申请人： Chan Woo PARK ,  Sang Hyun CHA ,  Se Hoon YOO ,  Jong Woo LEE ,  Ki Chul KIM ,  Jung Chul GONG ,  Jae Shin LEE

发明人： Chan Woo PARK ,  Sang Hyun CHA ,  Se Hoon YOO ,  Jong Woo LEE ,  Ki Chul KIM ,  Jung Chul GONG ,  Jae Shin LEE

IPC分类号： H05B37/02

CPC分类号： H05B33/0869 ,  H05B33/086 ,  H05B37/0254

摘要： There are provided a driving apparatus for a light emitting diode (LED) which may accurately display a desired color of light by adjusting a color coordinate value in accordance with an input brightness value, and a control method thereof. The driving apparatus includes a control unit receiving a brightness value and a color coordinate value of an LED desired to be controlled and controlling LED driving by adjusting the color coordinate value in accordance with the received brightness value; and a driving unit driving the LED in accordance with controlling of the control unit.

摘要翻译： 提供了一种用于发光二极管（LED）的驱动装置，其可以通过根据输入亮度值调整颜色坐标值来精确地显示所需颜色的光，以及其控制方法。 驱动装置包括控制单元，其接收期望被控制的LED的亮度值和颜色坐标值，并且根据接收到的亮度值调整颜色坐标值来控制LED驱动; 以及驱动单元，其根据控制单元的控制驱动LED。

公开(公告)号：US20110316825A1

公开(公告)日：2011-12-29

申请号：US12917230

申请日：2010-11-01

申请人： Sang Hyun CHA ,  Youn Joong LEE ,  Jae Shin LEE

发明人： Sang Hyun CHA ,  Youn Joong LEE ,  Jae Shin LEE

IPC分类号： G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3241 ,  G09G2320/0223 ,  G09G2320/0233

摘要： Disclosed herein is an organic electroluminescence display. The organic electroluminescence display includes: a plurality of pixels arranged in a matrix format on a display panel and configured of first to N+K-th rows; a plurality of first data lines connected to pixels each in the same column of pixels in the first to N-th rows; a plurality of second data lines connected to pixels each in the same column of pixels in the k+1-th to N+K-th rows; and a plurality of pixel driving buffers sensing time constants of the second data lines and compensating for data currents according to the number of sensed time constants to drive the respective corresponding first data lines with the compensated data currents. The organic electroluminescence display can reduce operation deviation between the pixels according to parasitic components of the data lines.

摘要翻译： 本文公开了一种有机电致发光显示器。 有机电致发光显示器包括：以矩阵形式排列在显示面板上并由第一至第N + K行构成的多个像素; 连接到第一至第N行的同一列像素中的像素的多个第一数据线; 连接到第k + 1至第N + K行的同一列像素中的像素的多个第二数据线; 以及多个像素驱动缓冲器，用于检测第二数据线的时间常数，并且根据所感测的时间常数的数量补偿数据电流，以用补偿的数据电流来驱动相应的对应的第一数据线。 有机电致发光显示器可以根据数据线的寄生分量来减少像素之间的操作偏差。

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。