公开(公告)号：US07382340B2

公开(公告)日：2008-06-03

申请号：US11077278

申请日：2005-03-08

申请人： Yang-Wan Kim ,  Choon-Yul Oh

发明人： Yang-Wan Kim ,  Choon-Yul Oh

IPC分类号： G09G3/36 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/043

摘要： A light emission display includes data lines, scan lines, and pixel circuits. A pixel circuit of the pixel circuits includes: a light emission element; a first transistor including a control electrode and first and second electrodes, the first transistor outputting a current corresponding to a voltage between the first electrode and the control electrode; a first switch coupled between the control electrode of the first transistor and the light emission element and for receiving a first control signal; a first capacitor coupled to the first transistor; a second capacitor coupled between a first power source and the first capacitor; a second switch for coupling the first capacitor and a second power source in response to a second control signal; and a third switch for applying a data voltage to the first capacitor in response to a select signal provided by one of the scan lines.

摘要翻译： 发光显示器包括数据线，扫描线和像素电路。 像素电路的像素电路包括：发光元件; 第一晶体管，包括控制电极和第一和第二电极，所述第一晶体管输出对应于所述第一电极和所述控制电极之间的电压的电流; 耦合在第一晶体管的控制电极和发光元件之间并用于接收第一控制信号的第一开关; 耦合到所述第一晶体管的第一电容器; 耦合在第一电源和第一电容器之间的第二电容器; 第二开关，用于响应于第二控制信号耦合第一电容器和第二电源; 以及第三开关，用于响应于由所述扫描线之一提供的选择信号而将数据电压施加到所述第一电容器。

公开(公告)号：US07304655B2

公开(公告)日：2007-12-04

申请号：US10734674

申请日：2003-12-15

申请人： Jin-Hyun Choi ,  Choon-Yul Oh ,  Jae-Sung Lee

发明人： Jin-Hyun Choi ,  Choon-Yul Oh ,  Jae-Sung Lee

IPC分类号： G09G5/10

CPC分类号： G09G3/3275 ,  G09G3/3208 ,  G09G2310/027 ,  G09G2320/0271 ,  G09G2320/0626 ,  G09G2360/16

摘要： An image display apparatus with pixels where each of the pixels has a light emitting element such as an organic EL (electro-luminescence) element. The brightness of the light emitting element is controlled by the current flowing in the light emitting element. The image display apparatus adjusts the amplitude of the white gray levels in accordance with average brightness of a screen displayed by RGB data.

摘要翻译： 具有像素的图像显示装置，其中每个像素具有诸如有机EL（电致发光）元件的发光元件。 发光元件的亮度由在发光元件中流动的电流控制。 图像显示装置根据RGB数据显示的画面的平均亮度来调整白色灰度级的幅度。

公开(公告)号：US20060066531A1

公开(公告)日：2006-03-30

申请号：US11217685

申请日：2005-09-02

申请人： Sung-Cheon Park ,  Choon-Yul Oh

发明人： Sung-Cheon Park ,  Choon-Yul Oh

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/20 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2330/02 ,  G09G2330/028

摘要： A light emitting display includes: a pixel portion including a plurality of pixels; a scan driver adapted to supply a scan signal to scan lines connected to the pixels; a DC/DC converter adapted to supply a first voltage and a second voltage to the plurality of pixels; and a synchronizer adapted to maintain a ripple voltage of the first voltage at a predetermined level when the scan signals are converted into a turn off voltage. With this configuration, since the ripple voltage of the first voltage is always kept constant when the scan signal is turned off, a uniform brightness in a horizontal line and a frame can be displayed.

摘要翻译： 发光显示器包括：包括多个像素的像素部分; 扫描驱动器，其适于提供扫描信号以扫描连接到像素的线; 适于向所述多个像素提供第一电压和第二电压的DC / DC转换器; 以及同步器，其适于在扫描信号被转换成关断电压时将第一电压的纹波电压保持在预定电平。 利用这种结构，由于当扫描信号关闭时第一电压的纹波电压始终保持恒定，因此可以显示水平线和帧中的均匀亮度。

公开(公告)号：US09437141B2

公开(公告)日：2016-09-06

申请号：US13191646

申请日：2011-07-27

申请人： Wang-Jo Lee ,  Hyung-Soo Kim ,  In-Ho Choi ,  Choon-Yul Oh ,  Ho-Ryun Chung ,  Joo-Hyeon Jeong ,  Myoung-Hwan Yoo ,  Jin-Woo Kim ,  Naoaki Komiya

发明人： Wang-Jo Lee ,  Hyung-Soo Kim ,  In-Ho Choi ,  Choon-Yul Oh ,  Ho-Ryun Chung ,  Joo-Hyeon Jeong ,  Myoung-Hwan Yoo ,  Jin-Woo Kim ,  Naoaki Komiya

IPC分类号： G09G5/00 ,  G05F1/00 ,  G09G3/32 ,  G11C19/18 ,  G11C19/28

CPC分类号： G09G3/3291 ,  G09G2310/0286 ,  G11C19/184 ,  G11C19/28

摘要： A scan driver includes: a plurality of scan driving blocks including an output terminal outputting a scan signal to a scan line; a first transistor transmitting a voltage of a power source to the output terminal; a second transistor transmitting a clock signal to the output terminal; and a third transistor including a gate electrode connected to a node formed with a gate-on voltage turning on the second transistor, one terminal connected to the power source, and the other terminal connected to the gate electrode of the first transistor. The scan driver may reduce the influence of a leakage current even though application of the scan signal is increased, and a scan signal of a uniform voltage level may be output.

摘要翻译： 扫描驱动器包括：多个扫描驱动块，包括将扫描信号输出到扫描线的输出端; 向所述输出端子发送电源的电压的第一晶体管; 向所述输出端发送时钟信号的第二晶体管; 以及第三晶体管，包括连接到形成有接通第二晶体管的栅极导通电压的节点的栅电极，连接到电源的一个端子和连接到第一晶体管的栅电极的另一端子。 即使扫描信号的施加增加，扫描驱动器也可以减小泄漏电流的影响，并且可以输出均匀电压电平的扫描信号。

公开(公告)号：US08947471B2

公开(公告)日：2015-02-03

申请号：US13200338

申请日：2011-09-23

申请人： Choon-Yul Oh

发明人： Choon-Yul Oh

IPC分类号： G09G5/10 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G2320/0223 ,  G09G2360/16

摘要： An active matrix display may include: a panel including a plurality of scan lines which transmit scan signals, a plurality of data lines which transmit data signals in response to the scan signals from the scan lines, a plurality of pixel circuits which are formed in a plurality of pixels, and each of the pixel circuits include a display element and a driving transistor driving the display element, and a power line which supplies a driving current to the driving transistor; a scan driver selectively transmitting the scan signals to the scan lines; a compensation circuit unit generating a compensation signal for compensating a voltage drop of the power line which results from a change in a total driving current flowing through the panel; and a data driver compensating the data signals using the compensation signal and transmitting compensated data signals to the data lines.

摘要翻译： 有源矩阵显示器可以包括：面板，包括发射扫描信号的多条扫描线;响应于来自扫描线的扫描信号发送数据信号的多条数据线;多个像素电路，形成在 多个像素，并且每个像素电路包括驱动显示元件的显示元件和驱动晶体管，以及向驱动晶体管提供驱动电流的电力线; 扫描驱动器选择性地将扫描信号发送到扫描线; 补偿电路单元，产生用于补偿由流过面板的总驱动电流的变化导致的电力线的电压降的补偿信号; 以及数据驱动器，使用补偿信号补偿数据信号，并将补偿的数据信号发送到数据线。

公开(公告)号：US20110279437A1

公开(公告)日：2011-11-17

申请号：US12929285

申请日：2011-01-12

申请人： Naoaki Komiya ,  Choon-Yul Oh ,  Ho-Ryun Chung ,  Myoung-Hwan Yoo ,  Joo-Hyeon Jeong ,  Wang-Jo Lee ,  In-Ho Choi ,  Chang-Ho Hyun ,  Woung Kim

发明人： Naoaki Komiya ,  Choon-Yul Oh ,  Ho-Ryun Chung ,  Myoung-Hwan Yoo ,  Joo-Hyeon Jeong ,  Wang-Jo Lee ,  In-Ho Choi ,  Chang-Ho Hyun ,  Woung Kim

IPC分类号： G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

摘要： An organic light emitting diode (OLED) display and a driving method thereof include an OLED, a driving transistor supplying a driving current to the OLED, a data line transmitting a data signal to the driving transistor, a first switch including a first electrode connected to one electrode of the OLED and a second electrode connected to the data line, and a second switch including a first electrode connected to the data line and a second electrode connected to the gate electrode of the driving transistor. The first switch is turned on such that a predetermined first current is transmitted to the OLED, the voltage of one electrode of the OLED is received through the data line, the deterioration degree of the OLED is detected according to the transmitted voltage, and the data signal transmitted to the data line is compensated according to the detected deterioration.

摘要翻译： 有机发光二极管（OLED）显示器及其驱动方法包括OLED，向OLED提供驱动电流的驱动晶体管，向驱动晶体管传输数据信号的数据线;第一开关，包括连接到 OLED的一个电极和连接到数据线的第二电极，以及包括连接到数据线的第一电极和连接到驱动晶体管的栅电极的第二电极的第二开关。 第一开关导通，使得预定的第一电流被传输到OLED，通过数据线接收OLED的一个电极的电压，根据透射电压检测OLED的劣化程度，并且数据 根据检测到的劣化来补偿发送到数据线的信号。

公开(公告)号：US20110210990A1

公开(公告)日：2011-09-01

申请号：US13103000

申请日：2011-05-06

申请人： Yang-Wan Kim ,  Choon-Yul Oh ,  Kyoung-Do Kim

发明人： Yang-Wan Kim ,  Choon-Yul Oh ,  Kyoung-Do Kim

IPC分类号： G09G3/30 ,  G09G5/10

CPC分类号： G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/02 ,  G09G2320/0223 ,  G09G2320/043

摘要： A light emitting display including data lines for transmitting data voltages, scan lines for selecting select signals, and pixel circuits. The pixel circuit is coupled to a data line and a scan line. The pixel circuit includes a transistor including first, second, and third electrodes, wherein the third electrode outputs a current corresponding to a voltage between the first and second electrodes. A light emitting element coupled to the third electrode emits light corresponding to the current outputted by the third electrode. A first switch transmits a data voltage in response to a select signal from the scan line. A voltage compensator receives the data voltage transmitted by the first switch and a second power supply voltage and applies a compensated data voltage based on the data voltage, a first power supply voltage and the second power supply voltage to the first electrode of the transistor.

摘要翻译： 包括用于传输数据电压的数据线，用于选择选择信号的扫描线和像素电路的发光显示器。 像素电路耦合到数据线和扫描线。 像素电路包括包括第一，第二和第三电极的晶体管，其中第三电极输出对应于第一和第二电极之间的电压的电流。 耦合到第三电极的发光元件发射对应于由第三电极输出的电流的光。 第一开关响应于来自扫描线的选择信号发送数据电压。 电压补偿器接收由第一开关发送的数据电压和第二电源电压，并且将基于数据电压的补偿数据电压，第一电源电压和第二电源电压施加到晶体管的第一电极。

公开(公告)号：US20110205206A1

公开(公告)日：2011-08-25

申请号：US12929802

申请日：2011-02-16

申请人： Myoung-Hwan Yoo ,  Choon-Yul Oh

发明人： Myoung-Hwan Yoo ,  Choon-Yul Oh

IPC分类号： G09G3/32 ,  G06F3/038

CPC分类号： G09G3/3275 ,  G09G2300/043 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043

摘要： A display device includes a display unit including a plurality of scan lines, a plurality of data lines to which a plurality of compensation data signals are transmitted, a plurality of light emitting signal lines, and a plurality of pixels respectively connected to the plurality of scan lines, the plurality of data lines, and the plurality of light emitting signal lines, and a data driver generating a data voltage corresponding to a image data signal, and converting the data voltage to the compensation data signal. The data driver includes a compensator generating the compensation data signal in accordance with a feedback voltage. The feedback voltage is determined by a degree of deterioration associated with each pixel, and increases with an increasing deterioration degree of the pixel.

摘要翻译： 显示装置包括：显示单元，包括多个扫描线，多个数据线，多个补偿数据信号被发送到多个数据线，多个发光信号线以及分别连接到多个扫描的多个像素 线，多条数据线和多条发光信号线，以及数据驱动器，产生对应于图像数据信号的数据电压，并将数据电压转换成补偿数据信号。 数据驱动器包括根据反馈电压产生补偿数据信号的补偿器。 反馈电压由与每个像素相关联的劣化程度确定，并且随着像素的劣化程度的增加而增加。

公开(公告)号：US20110109598A1

公开(公告)日：2011-05-12

申请号：US12904841

申请日：2010-10-14

申请人： Choon-Yul Oh

发明人： Choon-Yul Oh

IPC分类号： G09G3/32 ,  G09G5/00

CPC分类号： G09G3/3233 ,  G09G3/3208 ,  G09G3/3225 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/043

摘要： A pixel for an organic light emitting display is disclosed. The pixel is configured to provide a current to an organic light emitting diode which is substantially independent of a voltage threshold of the driving transistor of the circuit.

摘要翻译： 公开了一种用于有机发光显示器的像素。 像素被配置为向有机发光二极管提供电流，其基本上与电路的驱动晶体管的电压阈值无关。

公开(公告)号：US07408533B2

公开(公告)日：2008-08-05

申请号：US11138745

申请日：2005-05-25

申请人： Ki-Myeong Eom ,  Choon-Yul Oh

发明人： Ki-Myeong Eom ,  Choon-Yul Oh

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/043

摘要： A light emitting display includes pixel circuits capable of compensating for the threshold voltages of their driving transistors. Each pixel circuit includes a driving transistor, a capacitor having one end coupled to a gate electrode of the driving transistor, a first switch coupled between the gate electrode of the driving transistor and a first main electrode, which is turned on in response to a first level of a first control signal for diode-coupling the driving transistor, and a second switch turned on in response to a second level of a second control signal to transmit current flowing out of the first main electrode of the driving transistor to a light emitting element. The second switch is turned on when the first switch is turned on for a first period longer than 0.05 μs and shorter than 2.5 μs. The second switch is turned on when the first switch is turned off.

摘要翻译： 发光显示器包括能够补偿其驱动晶体管的阈值电压的像素电路。 每个像素电路包括驱动晶体管，电容器，其一端耦合到驱动晶体管的栅电极，第一开关耦合在驱动晶体管的栅电极和第一主电极之间，第一主电极响应于第一 用于二极管耦合驱动晶体管的第一控制信号的电平，以及响应于第二控制信号的第二电平而导通的第二开关，以将从驱动晶体管的第一主电极流出的电流传输到发光元件 。 当第一个开关打开第一个时间长于0.05个小时并小于2.5个小时时，第二个开关打开。 当第一个开关关闭时，第二个开关打开。