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。

公开(公告)号：US07710200B2

公开(公告)日：2010-05-04

申请号：US12028856

申请日：2008-02-11

申请人： Gyu Hyeong Cho ,  Tae-Woo Kwak

发明人： Gyu Hyeong Cho ,  Tae-Woo Kwak

IPC分类号： H03F3/18

CPC分类号： H03F3/3022 ,  H03F3/301 ,  H03F3/505 ,  H03F2203/30015 ,  H03F2203/5031

摘要： The present invention relates an output buffer and a power amplifier having the same. The output buffer includes a push-pull circuit unit, an output unit, and a driver. The push-pull circuit unit includes transistors connected to each others in a push-pull formation between a high level power voltage and a low level power voltage. The output unit is connected to the high level power voltage and the low level power voltage, and the driver drives the output unit according to a signal from the push-pull circuit unit.

摘要翻译： 本发明涉及一种输出缓冲器和具有该缓冲器的功率放大器。 输出缓冲器包括推挽电路单元，输出单元和驱动器。 推挽电路单元包括在高电平电源电压和低电平电源电压之间的推挽结构中彼此连接的晶体管。 输出单元连接到高电平电源电压和低电平电源电压，驱动器根据来自推挽电路单元的信号驱动输出单元。

公开(公告)号：US07609234B2

公开(公告)日：2009-10-27

申请号：US11232819

申请日：2005-09-22

申请人： Gyu-Hyeong Cho ,  Young-Suk Son ,  Sang-Kyung Kim ,  Min-Chul Lee

发明人： Gyu-Hyeong Cho ,  Young-Suk Son ,  Sang-Kyung Kim ,  Min-Chul Lee

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/3258 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/0297 ,  G09G2310/066 ,  G09G2320/0233

摘要： Disclosed herein are a pixel circuit and driving method for active matrix Organic Light-emitting Diodes (OLEDs), and a display using the same. The pixel circuit includes a Voltage Control Current Source (VCCS), a high gain amplifier, a storage capacitor, and first and second switches. The VCCS is configured to drive OLEDs. The high gain amplifier is configured such that the control input signal of the VCCS causes the VCCS to be placed in an ON or OFF state. The storage capacitor is located between the input terminal of the high gain amplifier and a data line so as to assign the ON-time of the VCCS. The first and second switches are configured to be controlled through a scan line so as to store voltage in the storage capacitor and control the light-emitting time of the OLEDs, and are formed the input terminal of the high gain amplifier and the input terminal of the VCCS, respectively.

摘要翻译： 这里公开了用于有源矩阵有机发光二极管（OLED）的像素电路和驱动方法以及使用其的显示器。 像素电路包括电压控制电流源（VCCS），高增益放大器，存储电容器以及第一和第二开关。 VCCS配置为驱动OLED。 高增益放大器配置为使得VCCS的控制输入信号使VCCS置于ON或OFF状态。 存储电容器位于高增益放大器的输入端和数据线之间，以分配VCCS的导通时间。 第一和第二开关被配置为通过扫描线进行控制，以将电压存储在存储电容器中并控制OLED的发光时间，并且形成高增益放大器的输入端和输入端 VCCS。

公开(公告)号：US07515081B2

公开(公告)日：2009-04-07

申请号：US11754431

申请日：2007-05-29

申请人： Gyu Hyeong Cho ,  Yong-Joon Jeon ,  Young-Suk Son ,  Sang Kyung Kim ,  Jin Yong Jeon ,  Gun Ho Lee

发明人： Gyu Hyeong Cho ,  Yong-Joon Jeon ,  Young-Suk Son ,  Sang Kyung Kim ,  Jin Yong Jeon ,  Gun Ho Lee

IPC分类号： H03M1/66

CPC分类号： H03M1/745

摘要： A digital-to-analog converter comprises a current supplier, a current divider dividing current supplied from the current supplier into certain amounts, an inverter outputting inverted signals of input signals and non-inverted signals, a switch controlling a flow of the current divided into the certain amounts by the current divider according to the inverted signals and the non-inverted signals, and a current output block adding up the current divided into the certain amounts according to the non-inverted signals to output an analog signal. The digital-to-analog converter can be implemented on a small chip area with desired resolution.

摘要翻译： 一个数模转换器包括一个当前供应商，一个分流器，从当前供应商提供一定的电流，反相器输出反相信号的输入信号和非反相信号;一个开关控制电流分流 根据反相信号和非反相信号通过电流除法器确定一定量，以及根据非反相信号将分成一定量的电流相加的电流输出块，以输出模拟信号。 数模转换器可以在具有所需分辨率的小芯片区域上实现。

公开(公告)号：US07358811B2

公开(公告)日：2008-04-15

申请号：US11339523

申请日：2006-01-26

申请人： Jeongwook Koh ,  Hoon-tae Kim ,  Kyoung-sik Seol ,  Gyu-hyeong Cho

发明人： Jeongwook Koh ,  Hoon-tae Kim ,  Kyoung-sik Seol ,  Gyu-hyeong Cho

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45188 ,  H03F3/45197 ,  H03F2203/45052 ,  H03F2203/45244 ,  H03F2203/45318 ,  H03F2203/45352 ,  H03F2203/45366 ,  H03F2203/45458 ,  H03F2203/45466 ,  H03F2203/45492 ,  H03G1/0029

摘要： Provided is a complementary metal oxide semiconductor variable gain amplifier controlling a dB linear gain and a method of controlling the dB linear gain. The complimentary metal oxide semiconductor variable gain amplifier includes: first through fourth transistors differentially receiving first and second input voltages and amplifying the first and second input voltage using a predetermined gain; fifth and sixth transistors controlling a transconductance according to a control voltage to control the predetermined gain; and first and second resistors generating an output voltage having the predetermined gain according to an output current generated by the fifth and sixth transistors.

摘要翻译： 提供了控制dB线性增益的互补金属氧化物半导体可变增益放大器和控制dB线性增益的方法。 互补金属氧化物半导体可变增益放大器包括：第一至第四晶体管，差分地接收第一和第二输入电压，并使用预定增益放大第一和第二输入电压; 第五和第六晶体管根据控制电压控制跨导以控制预定的增益; 以及根据由第五和第六晶体管产生的输出电流产生具有预定增益的输出电压的第一和第二电阻器。

公开(公告)号：US07339511B2

公开(公告)日：2008-03-04

申请号：US11367865

申请日：2006-03-03

申请人： Young-Suk Son ,  Sang-Kyung Kim ,  Gyu-Hyeong Cho

发明人： Young-Suk Son ,  Sang-Kyung Kim ,  Gyu-Hyeong Cho

IPC分类号： H03M1/66

CPC分类号： H03M1/682 ,  G09G3/20 ,  G09G3/2011 ,  G09G2310/027 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2320/0276

摘要： Disclosed herein are a time division sampling digital to analog converter for a flat panel display, a method of implementing the digital to analog converter, and a data driver circuit using the digital to analog converter. The time division sampling digital to analog converter includes a timing signal generation means for generating timing signals, a data selection means for receiving n-bit digital data, dividing the n-bit digital data into k groups, and outputting the divided digital input data; k reference signal generation means for each outputting 2n/k analog reference signals; a reference signal selection means for receiving the outputs of the reference signal generation means and outputting only 2n/k analog reference signals selected according to a timing signal from the timing signal generation means; a multiplexer for outputting one of reference signals from the reference signal selection means using the n/k-bit digital data from the data selection means as a control input; and a sampling mode analog addition means for sampling and storing the output of the multiplexer according to a timing signal from the timing signal generation means.

摘要翻译： 这里公开了用于平板显示器的时分采样数模转换器，实现数模转换器的方法和使用数模转换器的数据驱动器电路。 时分采样数模转换器包括用于产生定时信号的定时信号产生装置，用于接收n位数字数据的数据选择装置，将n位数字数据分成k组，并输出分割数字输入数据; k个参考信号产生装置，用于每个输出2个/ k个模拟参考信号; 参考信号选择装置，用于接收参考信号产生装置的输出，并且仅输出根据来自定时信号产生装置的定时信号选择的2个/ n / k个模拟参考信号; 多路复用器，用于使用来自数据选择装置的n / k位数字数据作为控制输入，从参考信号选择装置输出参考信号之一; 以及采样模式加法装置，用于根据来自定时信号产生装置的定时信号对多路复用器的输出进行采样和存储。

公开(公告)号：US20070229084A1

公开(公告)日：2007-10-04

申请号：US11760071

申请日：2007-06-08

申请人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

发明人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

IPC分类号： G01R31/44

CPC分类号： H05B41/2824 ,  H05B41/2822 ,  H05B41/3921 ,  Y10S315/07

摘要： A discharge lamp driving circuit includes an inverter, a ballast capacitor, a discharge lamp, and a lamp current detecting circuit. The inverter converts a DC voltage into an AC voltage with high frequency to output the AC voltage to an output port based on a pulse width modulation control signal. The lamp current detecting circuit outputs a first voltage signal and a second voltage signal according to a voltage across the ballast capacitor to generate a lamp current sensing voltage that is proportional to a lamp current flowing through the discharge lamp. The pulse width modulation control signal has a width varying with amplitude of the lamp current so that the lamp current may be accurately detected.

摘要翻译： 放电灯驱动电路包括逆变器，镇流电容器，放电灯和灯电流检测电路。 逆变器将直流电压转换为高频的交流电压，以将脉冲宽度调制控制信号的交流电压输出到输出端口。 灯电流检测电路根据镇流电容器两端的电压输出第一电压信号和第二电压信号，以产生与流过放电灯的灯电流成比例的灯电流检测电压。 脉冲宽度调制控制信号的宽度随着灯电流的振幅而变化，从而可以准确地检测灯电流。

公开(公告)号：US07242155B2

公开(公告)日：2007-07-10

申请号：US11232316

申请日：2005-09-21

申请人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

发明人： Gyu-Hyeong Cho ,  Sang-Kyung Kim ,  Hee-Seok Han

IPC分类号： G05F1/00

CPC分类号： H05B41/2824 ,  H05B41/2822 ,  H05B41/3921 ,  Y10S315/07

摘要： A discharge lamp driving circuit includes an inverter, a ballast capacitor, a discharge lamp, and a lamp current detecting circuit. The inverter converts a DC voltage into an AC voltage with high frequency to output the AC voltage to an output port based on a pulse width modulation control signal. The lamp current detecting circuit outputs a first voltage signal and a second voltage signal according to a voltage across the ballast capacitor to generate a lamp current sensing voltage that is proportional to a lamp current flowing through the discharge lamp. The pulse width modulation control signal has a width varying with amplitude of the lamp current so that the lamp current may be accurately detected.

摘要翻译： 放电灯驱动电路包括逆变器，镇流电容器，放电灯和灯电流检测电路。 逆变器将直流电压转换为高频的交流电压，以将脉冲宽度调制控制信号的交流电压输出到输出端口。 灯电流检测电路根据镇流电容器两端的电压输出第一电压信号和第二电压信号，以产生与流过放电灯的灯电流成比例的灯电流检测电压。 脉冲宽度调制控制信号的宽度随着灯电流的振幅而变化，从而可以准确地检测灯电流。