公开(公告)号：US09047820B2

公开(公告)日：2015-06-02

申请号：US13585761

申请日：2012-08-14

申请人： Jin-Tae Jeong ,  Oh-Kyong Kwon

发明人： Jin-Tae Jeong ,  Oh-Kyong Kwon

IPC分类号： G09G5/00 ,  G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2320/043

摘要： A method of driving an organic light emitting display capable of providing a sufficient (e.g., a sufficiently long) data writing period and/or threshold voltage compensating period is provided. The method includes supplying scan signals to odd scan lines in a writing period of an odd frame set to be in a non-emission state, and supplying scan signals to even scan lines in a writing period of an even frame set to be in the non-emission state.

摘要翻译： 提供一种驱动能够提供足够（例如足够长）的数据写入周期和/或阈值电压补偿周期的有机发光显示器的方法。 该方法包括在设置为非发光状态的奇数帧的写入周期中向奇数扫描线提供扫描信号，并且在设置为非发光状态的偶数帧的写入周期中将扫描信号提供给偶数扫描线， 发射状态。

公开(公告)号：US08674907B2

公开(公告)日：2014-03-18

申请号：US13156273

申请日：2011-06-08

申请人： Oh-Kyong Kwon

发明人： Oh-Kyong Kwon

IPC分类号： G09G3/30 ,  G09G3/20

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0871 ,  G09G2300/0885

摘要： Disclosed is a pixel capable of finely controlling the amount of current and increasing the voltage range of a data signal. A pixel includes an organic light emitting diode, a first transistor, a storage capacitor, a load and an amplifier. The first transistor is coupled between a scan line and a data line, and supplies a data signal supplied to the data line to a first node when a scan signal is supplied to the scan line. The storage capacitor is coupled between the first node and a first power source, and charges a voltage corresponding to the data signal. The load is coupled between the organic light emitting diode and the first power source. The amplifier controls a voltage applied to the load corresponding to the voltage charged in the storage capacitor.

摘要翻译： 公开了能够精细地控制电流量并增加数据信号的电压范围的像素。 像素包括有机发光二极管，第一晶体管，存储电容器，负载和放大器。 当扫描信号被提供给扫描线时，第一晶体管耦合在扫描线和数据线之间，并将提供给数据线的数据信号提供给第一节点。 存储电容器耦合在第一节点和第一电源之间，并且对与数据信号相对应的电压进行充电。 负载耦合在有机发光二极管和第一电源之间。 放大器控制施加到与存储电容器中充电的电压相对应的负载的电压。

公开(公告)号：US08525756B2

公开(公告)日：2013-09-03

申请号：US12082147

申请日：2008-04-08

申请人： Oh-Kyong Kwon

发明人： Oh-Kyong Kwon

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3275 ,  G09G2300/0417 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045

摘要： An organic light emitting display capable of displaying an image with uniform luminance regardless of deterioration of an organic light emitting diode and threshold voltage/mobility of a drive transistor is disclosed. The organic light emitting display senses deterioration of the organic light emitting diode and the threshold voltage and/or mobility of a drive transistor and modifies the data supplied to the pixel according to the sensed parameters.

摘要翻译： 公开了能够显示具有均匀亮度的图像的有机发光显示器，而不管有机发光二极管的劣化和驱动晶体管的阈值电压/迁移率如何。 有机发光显示器感测有机发光二极管的劣化和驱动晶体管的阈值电压和/或迁移率，并且根据感测的参数修改提供给像素的数据。

公开(公告)号：US20130222348A1

公开(公告)日：2013-08-29

申请号：US13585761

申请日：2012-08-14

申请人： Jin-Tae Jeong ,  Oh-Kyong Kwon

发明人： Jin-Tae Jeong ,  Oh-Kyong Kwon

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2320/043

摘要： A method of driving an organic light emitting display capable of providing a sufficient (e.g., a sufficiently long) data writing period and/or threshold voltage compensating period is provided. The method includes supplying scan signals to odd scan lines in a writing period of an odd frame set to be in a non-emission state, and supplying scan signals to even scan lines in a writing period of an even frame set to be in the non-emission state.

摘要翻译： 提供一种驱动能够提供足够（例如足够长）的数据写入周期和/或阈值电压补偿周期的有机发光显示器的方法。 该方法包括在设置为非发光状态的奇数帧的写入周期中向奇数扫描线提供扫描信号，并且在设置为非发光状态的偶数帧的写入周期中将扫描信号提供给偶数扫描线， 发射状态。

公开(公告)号：US08319707B2

公开(公告)日：2012-11-27

申请号：US12080955

申请日：2008-04-08

申请人： Oh-Kyong Kwon

发明人： Oh-Kyong Kwon

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

摘要： An organic light emitting display capable of displaying an image with uniform luminance regardless of deterioration of an organic light emitting diode and threshold voltage and/or mobility of a drive transistor is disclosed. The organic light emitting display senses deterioration of the organic light emitting diode and threshold voltage and/or mobility of a drive transistor and modifies the data supplied to the pixel according to the sensed parameters.

摘要翻译： 公开了能够显示具有均匀亮度的图像的有机发光显示器，而不管有机发光二极管的劣化和驱动晶体管的阈值电压和/或迁移率如何。 有机发光显示器感测有机发光二极管的劣化和驱动晶体管的阈值电压和/或迁移率，并且根据感测的参数修改提供给像素的数据。

公开(公告)号：US08294696B2

公开(公告)日：2012-10-23

申请号：US12406631

申请日：2009-03-18

申请人： Ung-Gyu Min ,  Oh-Kyong Kwon

发明人： Ung-Gyu Min ,  Oh-Kyong Kwon

IPC分类号： G06F3/038 ,  G09G5/00

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0413 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

摘要： The present invention provides a display device and a method of driving the same. The display device includes a plurality of display pixels to display an image, a plurality of data lines connected to the display pixel, and a plurality of sensing lines connected to the display pixel. Each display pixel includes: a driving transistor including a control terminal, an input terminal, and an output terminal; a capacitor connected to the control terminal of the driving transistor; a first switching transistor connected to the data line and the control terminal of the driving transistor; a light-emitting element to receive a driving current from the driving transistor, the light-emitting element to emit light; a second switching transistor connected between the sensing line and the output terminal of the driving transistor; and a third switching transistor connected between the output terminal of the driving transistor and the light-emitting element, wherein the driving transistor is a p-channel electric field effect transistor.

摘要翻译： 本发明提供一种显示装置及其驱动方法。 显示装置包括显示图像的多个显示像素，连接到显示像素的多个数据线以及连接到显示像素的多个感测线。 每个显示像素包括：驱动晶体管，其包括控制端子，输入端子和输出端子; 连接到驱动晶体管的控制端的电容器; 连接到数据线和驱动晶体管的控制端的第一开关晶体管; 从驱动晶体管接收驱动电流的发光元件，发光元件发光; 连接在感测线与驱动晶体管的输出端之间的第二开关晶体管; 以及连接在驱动晶体管的输出端子和发光元件之间的第三开关晶体管，其中驱动晶体管是p沟道电场效应晶体管。

公开(公告)号：US08232955B2

公开(公告)日：2012-07-31

申请号：US11998526

申请日：2007-11-30

申请人： Oh-Kyong Kwon

发明人： Oh-Kyong Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G01J1/32 ,  G01J1/4204 ,  G01J1/46 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0219 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2360/144

摘要： An ambient light sensor circuit and a flat panel display device having same that can automatically control screen brightness by sensing ambient brightness and controlling an output current. The ambient light sensor circuit includes a transistor electrically coupled to a first power source; a first capacitive element electrically coupled between a control electrode of the transistor and a first reference power source; a second capacitive element electrically coupled between the first capacitive element and a second reference power source; a first light receiving element electrically coupled between the first and third reference power sources and controlling a coupling voltage of the first capacitive element and charge/discharge voltages of the second capacitive element by conducting current in response to ambient light; a first switch electrically coupled to the transistor and enabling the transistor to output current from the first power source according to the coupling voltage of the first capacitive element; and a second switch electrically coupled between the first light receiving element and the first capacitive element and interrupting a leakage current of the first light receiving element, thereby preventing the coupling voltage of the first capacitive element from being changed.

摘要翻译： 环境光传感器电路和平板显示装置具有能够通过感测环境亮度并控制输出电流来自动控制屏幕亮度的装置。 环境光传感器电路包括电耦合到第一电源的晶体管; 电耦合在晶体管的控制电极和第一参考电源之间的第一电容元件; 电耦合在所述第一电容元件和第二参考电源之间的第二电容元件; 电耦合在第一和第三参考电源之间的第一光接收元件，并且响应于环境光通过传导电流来控制第一电容元件的耦合电压和第二电容元件的充电/放电电压; 电耦合到所述晶体管并使所述晶体管能够根据所述第一电容元件的耦合电压从所述第一电源输出电流的第一开关; 以及第二开关，电耦合在第一光接收元件和第一电容元件之间，并且中断第一光接收元件的漏电流，从而防止第一电容元件的耦合电压发生变化。

公开(公告)号：US08159445B2

公开(公告)日：2012-04-17

申请号：US11623398

申请日：2007-01-16

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

IPC分类号： G09G3/36

摘要： A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

公开(公告)号：US07777735B2

公开(公告)日：2010-08-17

申请号：US11315184

申请日：2005-12-23

申请人： Sang Moo Choi ,  Oh-Kyong Kwon

发明人： Sang Moo Choi ,  Oh-Kyong Kwon

IPC分类号： G09G3/32

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2310/027 ,  G09G2320/029

摘要： A data driving integrated circuit to display an image with a desired brightness includes: a shift register adapted to generate sampling signals in sequence; a latch adapted to store external data in response to the sampling signal; a register adapted to temporarily store the data stored in the latch; a voltage digital-analog converter adapted to generate a gradation voltage corresponding to the data stored in the register; a current digital-analog converter adapted to generate a gradation current corresponding to the data stored in the register; a buffer adapted to supply the gradation voltage as a data signal to a pixel; and a data controller adapted to receive a pixel current flowing in the pixel in correspondence to the gradation voltage and fed back from the pixel and to adjust a bit value of the data stored in the register.

摘要翻译： 用于显示具有期望亮度的图像的数据驱动集成电路包括：移位寄存器，用于依次产生采样信号; 适于响应于采样信号存储外部数据的锁存器; 寄存器，其适于临时存储存储在所述锁存器中的数据; 电压数模转换器，适于产生与存储在寄存器中的数据相对应的灰度电压; 当前的数模转换器，适于产生与存储在寄存器中的数据相对应的灰度电流; 适于将灰度电压作为数据信号提供给像素的缓冲器; 以及数据控制器，其适于接收与所述灰度电压对应地流过所述像素的像素电流并从所述像素反馈并调整存储在所述寄存器中的数据的位值。

公开(公告)号：US07772884B2

公开(公告)日：2010-08-10

申请号：US12223966

申请日：2007-01-22

申请人： Oh-Kyong Kwon

发明人： Oh-Kyong Kwon

IPC分类号： H03K19/094 ,  H03K19/096

CPC分类号： H03K19/01742 ,  H03K3/356121

摘要： Provided is a level shift circuit. The level shift circuit includes an inverter including a first transistor having a first polarity to which an input signal from an input port is applied through a gate and a second transistor having a second polarity which is an opposite polarity to the first polarity, the second transistor being connected in series to the first transistor between a positive source voltage and a negative source voltage and a connection node between the first and second transistors being an output port, a capacitor connected between a gate of the first transistor and a gate of the second transistor, and a voltage adjusting means for accurately adjusting a voltage applied to the gate of the second transistor according to an exact switching operation time of the second transistor, using a clock signal and an output port signal of the inverter. A stable and high-speed operation can be performed with a comparatively small size and low power consumption can be achieved.

摘要翻译： 提供了电平移位电路。 电平移位电路包括反相器，其包括具有第一极性的第一晶体管，来自输入端口的输入信号通过栅极施加到第一晶体管，第二晶体管具有与第一极性相反极性的第二极性，第二晶体管 在正源电压和负电源电压之间串联连接到第一晶体管，第一和第二晶体管之间的连接节点是输出端口，连接在第一晶体管的栅极和第二晶体管的栅极之间的电容器 以及电压调整装置，使用逆变器的时钟信号和输出端口信号，根据第二晶体管的精确切换操作时间精确地调整施加到第二晶体管的栅极的电压。 可以以相对较小的尺寸执行稳定和高速的操作，并且可以实现低功耗。