公开(公告)号：US08259040B2

公开(公告)日：2012-09-04

申请号：US12082118

申请日：2008-04-08

申请人： Do-Hyung Ryu ,  Do-Ik Kim

发明人： Do-Hyung Ryu ,  Do-Ik Kim

IPC分类号： G09G3/30

CPC分类号： G09G3/3258 ,  G09G3/2033 ,  G09G5/393 ,  G09G5/395 ,  G09G2310/0216 ,  G09G2310/061 ,  G09G2320/0261 ,  G09G2320/0266

摘要： Disclosed is an organic light emitting display of improved an image quality. The organic light emitting display includes a frame memory for storing a data to correspond to a write clock and outputting the data stored according to a read clock; a signal generation unit for supplying the read clock; a data driver for converting the data, supplied from the frame memory, into a data signal and supplying the converted data signal to data lines; a scan driver for supplying a scan signal to scan lines; and pixels arranged near crossing points between the scan lines and the data lines, wherein the read clock has a higher frequency than the write clock.

摘要翻译： 公开了一种提高图像质量的有机发光显示器。 有机发光显示器包括：帧存储器，用于存储对应于写时钟的数据，并输出根据读时钟存储的数据; 用于提供读时钟的信号产生单元; 用于将从帧存储器提供的数据转换成数据信号并将转换的数据信号提供给数据线的数据驱动器; 用于向扫描线提供扫描信号的扫描驱动器; 以及布置在扫描线和数据线之间的交叉点附近的像素，其中读取时钟具有比写入时钟更高的频率。

公开(公告)号：US20110279433A1

公开(公告)日：2011-11-17

申请号：US13105823

申请日：2011-05-11

申请人： Do-Hyung Ryu

发明人： Do-Hyung Ryu

IPC分类号： G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/028

摘要： An organic light emitting diode display device includes a display unit including a plurality of pixels; a data driver applying data voltage to the pixels; and a power supplier including a first power source providing high-level voltage to the anode electrode of organic light emitting diodes and a second power source providing low-level voltage to the cathode electrode of the organic light emitting diodes included in the pixels, in which the power supplier provides the second power source in a sink method at positive voltage, when the threshold voltage of a driving transistor for driving the organic light emitting diodes shifts to a negative. When gate-source voltage of a driving transistor shifts to negative threshold voltage, it is possible to apply the data voltage at positive voltage and to simplify a driving IC, thereby ensuring wide use, by applying voltage of a second power source ELVSS at positive voltage.

摘要翻译： 一种有机发光二极管显示装置，包括：包括多个像素的显示单元; 将数据电压施加到像素的数据驱动器; 以及电源，其包括向有机发光二极管的阳极提供高电平电压的第一电源和向像素中包括的有机发光二极管的阴极提供低电平电压的第二电源，其中 当用于驱动有机发光二极管的驱动晶体管的阈值电压转移到负极时，电源在正电压下以宿方式提供第二电源。 当驱动晶体管的栅源电压转移到负阈值电压时，可以以正电压施加数据电压并简化驱动IC，从而通过以正电压施加第二电源ELVSS的电压来确保广泛使用 。

公开(公告)号：US20110012819A1

公开(公告)日：2011-01-20

申请号：US12723372

申请日：2010-03-12

申请人： Do-Hyung Ryu ,  Do-Ik Kim

发明人： Do-Hyung Ryu ,  Do-Ik Kim

IPC分类号： G09G3/32

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0861 ,  G09G2320/0295

摘要： A current generator for supplying or sinking current to/from pixels. The current generator includes a variable power source, a first amplifier having a first input terminal coupled to the variable power source, a sensing resistor coupled between an output terminal of the first amplifier and an external terminal of the current generator, and a second amplifier having a first input terminal and a second input terminal coupled to respective ends of the sensing resistor and an output terminal coupled to a second input terminal of the first amplifier.

摘要翻译： 用于向/从像素供电或吸收电流的电流发生器。 电流发生器包括可变电源，具有耦合到可变电源的第一输入端的第一放大器，耦合在第一放大器的输出端和电流发生器的外部端之间的感测电阻器，以及第二放大器， 耦合到感测电阻器的相应端的第一输入端和第二输入端以及耦合到第一放大器的第二输入端的输出端。

公开(公告)号：US07129643B2

公开(公告)日：2006-10-31

申请号：US10969438

申请日：2004-10-19

申请人： Dong-Yong Shin ,  Keum-Nam Kim ,  Do-Hyung Ryu

发明人： Dong-Yong Shin ,  Keum-Nam Kim ,  Do-Hyung Ryu

IPC分类号： G09G3/10 ,  G09G5/00 ,  H01L27/10 ,  H01L29/73

CPC分类号： G09G3/325 ,  G09G3/3266 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0252

摘要： A pixel circuit of an organic EL display includes a driving transistor for transmitting a driving current to an organic EL element. A first capacitor is connected between a gate and a source of the driving transistor, and a second capacitor is connected between the gate thereof and a boosting scan line. A voltage corresponding to a data current from a data line is stored in the first capacitor in response to a select signal from a selecting scan line. The voltage level of the boosting scan line is changed so that the voltage of the first capacitor is changed by coupling of the first and second capacitors. The driving current corresponding to the changed voltage flows to the organic EL element to emit light. As a result, the current flowing to the organic EL element can be controlled using a large data current, and the influence of the parasitic capacitance components of the transistors or data lines can be minimized.

摘要翻译： 有机EL显示器的像素电路包括用于向有机EL元件发送驱动电流的驱动晶体管。 第一电容器连接在驱动晶体管的栅极和源极之间，第二电容器连接在其栅极和升压扫描线之间。 对应于来自数据线的数据电流的电压响应于来自选择扫描线的选择信号被存储在第一电容器中。 改变升压扫描线的电压电平，使得第一电容器的电压通过第一和第二电容器的耦合而改变。 与改变的电压对应的驱动电流流向有机EL元件发光。 结果，可以使用大的数据电流来控制流向有机EL元件的电流，并且可以使晶体管或数据线的寄生电容分量的影响最小化。