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    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY
    1.
    发明申请
    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY 审中-公开
    有源矩阵有机发光二极管显示

    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。

    DISPLAY DRIVING APPARATUS
    2.
    发明申请
    DISPLAY DRIVING APPARATUS 审中-公开
    显示驱动器

    公开(公告)号：US20100097360A1

    公开(公告)日：2010-04-22

    申请号：US12578046

    申请日：2009-10-13

    申请人： Gyu-Hyeong Cho ,  Yong-Joon Jeon ,  Jin-Yong Jeon ,  Seung-Chul Jung ,  Ki-Duk Kim ,  Sung-Woo Lee

    发明人： Gyu-Hyeong Cho ,  Yong-Joon Jeon ,  Jin-Yong Jeon ,  Seung-Chul Jung ,  Ki-Duk Kim ,  Sung-Woo Lee

    IPC分类号： G09G5/00

    CPC分类号： G09G3/325 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/0223 ,  G09G2320/0295

    摘要： Disclosed is a display driving apparatus. The display driving apparatus comprises: a current DAC generating a data current; a data line connected to a pixel circuit requiring data writing on a matrix array of a display panel; an adjacent data line located adjacent to the data line; a current mirror feedbacking an excessive charging current generating due to parasitic capacitance of the adjacent data line as a charging current for charging parasitic capacitance of the data line; a current output unit connected to the current mirror and including a first driving transistor unit for driving the data line, and a second driving transistor unit for driving the adjacent data line; a source follower driving the current output unit according to an output node voltage of the current DAC; and a first constant current source discharging parasitic capacitance excessively charged in the data line and the adjacent data line.

    摘要翻译： 公开了一种显示驱动装置。 显示驱动装置包括：产生数据电流的电流DAC; 连接到需要在显示面板的矩阵阵列上进行数据写入的像素电路的数据线; 邻近数据线的相邻数据线; 电流镜反馈由于相邻数据线的寄生电容而产生的过充电电流作为用于对数据线的寄生电容进行充电的充电电流; 连接到电流镜并包括用于驱动数据线的第一驱动晶体管单元的电流输出单元和用于驱动相邻数据线的第二驱动晶体管单元; 源极跟随器，根据电流DAC的输出节点电压驱动电流输出单元; 以及对数据线和相邻数据线过充电的寄生电容放电的第一恒流源。

    AMOLED DRIVE CIRCUIT USING TRANSIENT CURRENT FEEDBACK AND ACTIVE MATRIX DRIVING METHOD USING THE SAME
    3.
    发明申请
    AMOLED DRIVE CIRCUIT USING TRANSIENT CURRENT FEEDBACK AND ACTIVE MATRIX DRIVING METHOD USING THE SAME 有权
    使用瞬态电流反馈和主动矩阵驱动方法的AMOLED驱动电路

    公开(公告)号：US20080238327A1

    公开(公告)日：2008-10-02

    申请号：US11693819

    申请日：2007-03-30

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

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

    IPC分类号： G09G3/12

    CPC分类号： G09G3/3283 ,  G09G3/3241 ,  G09G2300/043 ,  G09G2310/0248 ,  G09G2320/0223 ,  G09G2320/0252

    摘要： Disclosed herein is an Active Matrix Organic Light-Emitting-Diode (AMOLED) drive circuit using transient current feedback. The AMOLED drive circuit includes a current Digital-to-Analog Converter (DAC), a data line drive transistor, a constant current source, a variable current source, a differential amplifier, and a transient charging current control unit. The DAC generates current corresponding to input digital data. The data line drive transistor is configured such that the drain terminal thereof is connected to the output node of the current DAC. The constant current source is connected between the source terminal of the data line drive transistor and a ground. The variable current source is connected between both the output node of the current DAC and the drain terminal of the drive transistor, and a voltage source. The differential amplifier is configured to input the output voltage thereof to the gate terminal of the drive transistor. The transient charging current control unit is configured to increase or decrease the bias current of the variable current source depending on variation in the voltage of the output node of the current DAC.

    摘要翻译： 本文公开了使用瞬态电流反馈的有源矩阵有机发光二极管（AMOLED）驱动电路。 AMOLED驱动电路包括当前的数模转换器（DAC），数据线驱动晶体管，恒流源，可变电流源，差分放大器和瞬态充电电流控制单元。 DAC产生对应于输入数字数据的电流。 数据线驱动晶体管被配置成使得其漏极端子连接到电流DAC的输出节点。 恒流源连接在数据线驱动晶体管的源极端子和地之间。 可变电流源连接在电流DAC的输出节点和驱动晶体管的漏极端子和电压源之间。 差分放大器被配置为将其输出电压输入到驱动晶体管的栅极端子。 瞬态充电电流控制单元被配置为根据当前DAC的输出节点的电压变化来增加或减小可变电流源的偏置电流。

    Active matrix OLED driving circuit using current feedback
    4.
    发明申请
    Active matrix OLED driving circuit using current feedback 失效
    有源矩阵OLED驱动电路采用电流反馈

    公开(公告)号：US20070075939A1

    公开(公告)日：2007-04-05

    申请号：US11543588

    申请日：2006-10-04

    申请人： Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kim

    发明人： Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kim

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/043

    摘要： An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit. The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.

    摘要翻译： 使用电流反馈的有源矩阵有机发光二极管AMOLED驱动电路，其确保平板显示器的像素中亮度的均匀性，并缩短将精确电流输入到驱动电路中的各个像素所需的时间。 本发明提供一种使用电流反馈的AMOLED驱动电路，包括：输出与输入数字数据相对应的电流的当前数模转换器; 连接到当前数模转换器并控制像素电路的驱动晶体管的输入数据电流和驱动电流彼此相同的第一差分放大器; 将像素电路的有机发光二极管的驱动电流的电流镜反射到第一差分放大器的输入侧; 以及耦合到电流镜并且控制像素电路的寄生电容的充电和放电速度的第二差分放大器。

    ORGANIC LIGHT EMITTING DIODE DRIVER
    6.
    发明申请
    ORGANIC LIGHT EMITTING DIODE DRIVER 审中-公开
    有机发光二极管驱动器

    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。

    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING RESET FUNCTION
    7.
    发明申请
    ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING RESET FUNCTION 审中-公开
    有源矩阵有机发光二极管显示有复位功能

    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。

    High resolution digital-to-analog converter
    9.
    发明授权
    High resolution digital-to-analog converter 失效
    高分辨率数模转换器

    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。

    AMOLED drive circuit using transient current feedback and active matrix driving method using the same
    10.
    发明授权
    AMOLED drive circuit using transient current feedback and active matrix driving method using the same 有权
    AMOLED驱动电路采用瞬态电流反馈和有源矩阵驱动方式使用

    公开(公告)号：US08212749B2

    公开(公告)日：2012-07-03

    申请号：US11693819

    申请日：2007-03-30

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

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

    IPC分类号： G09G3/32

    CPC分类号： G09G3/3283 ,  G09G3/3241 ,  G09G2300/043 ,  G09G2310/0248 ,  G09G2320/0223 ,  G09G2320/0252

    摘要： Disclosed herein is an Active Matrix Organic Light-Emitting-Diode (AMOLED) drive circuit using transient current feedback. The AMOLED drive circuit includes a current Digital-to-Analog Converter (DAC), a data line drive transistor, a constant current source, a variable current source, a differential amplifier, and a transient charging current control unit. The DAC generates current corresponding to input digital data. The data line drive transistor is configured such that the drain terminal thereof is connected to the output node of the current DAC. The constant current source is connected between the source terminal of the data line drive transistor and a ground. The variable current source is connected between both the output node of the current DAC and the drain terminal of the drive transistor, and a voltage source. The differential amplifier is configured to input the output voltage thereof to the gate terminal of the drive transistor. The transient charging current control unit is configured to increase or decrease the bias current of the variable current source depending on variation in the voltage of the output node of the current DAC.

    摘要翻译： 本文公开了使用瞬态电流反馈的有源矩阵有机发光二极管（AMOLED）驱动电路。 AMOLED驱动电路包括当前的数模转换器（DAC），数据线驱动晶体管，恒流源，可变电流源，差分放大器和瞬态充电电流控制单元。 DAC产生对应于输入数字数据的电流。 数据线驱动晶体管被配置成使得其漏极端子连接到电流DAC的输出节点。 恒流源连接在数据线驱动晶体管的源极端子和地之间。 可变电流源连接在电流DAC的输出节点和驱动晶体管的漏极端子和电压源之间。 差分放大器被配置为将其输出电压输入到驱动晶体管的栅极端子。 瞬态充电电流控制单元被配置为根据当前DAC的输出节点的电压变化来增加或减小可变电流源的偏置电流。