公开(公告)号：US20110109813A1

公开(公告)日：2011-05-12

申请号：US12917031

申请日：2010-11-01

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： H04N5/66 ,  G09G5/10

CPC分类号： G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0281 ,  G09G2320/0223

摘要： A display device includes: pixels each including a light-emitting element; scan lines and signal lines; a scan line drive circuit applying a selection pulse to each of the scan lines in succession; and a signal line drive circuit writing video signals to respective selected pixels through switching a gray-scale interpolation voltage, a basic voltage, and a video signal voltage to apply each voltage selected by switching to each of the signal lines. The signal line drive circuit performs gray-scale interpolation on a light emission luminance level for each of the light emitting elements through setting the video signal voltage to a fundamental gray-scale voltage, and through varying the gray-scale interpolation voltage. The scan line drive circuit starts and completes an application of the selection pulse during each of a period of a gray-scale interpolation voltage, a period of a basic voltage and a period of a video signal voltage.

摘要翻译： 显示装置包括：各自包括发光元件的像素; 扫描线和信号线; 扫描线驱动电路，连续地对每条扫描线施加选择脉冲; 以及信号线驱动电路，通过切换灰度内插电压，基本电压和视频信号电压将视频信号写入各选择像素，以将通过切换选择的每个电压施加到每个信号线。 信号线驱动电路通过将视频信号电压设定为基本灰度级电压，并通过改变灰度级内插电压，对发光元件的发光亮度等级进行灰阶插值。 扫描线驱动电路在灰度插值电压，基本电压的周期和视频信号电压的周期的每个周期期间开始并完成选择脉冲的施加。

公开(公告)号：US20090322722A1

公开(公告)日：2009-12-31

申请号：US12457361

申请日：2009-06-09

申请人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： G09G5/00

CPC分类号： G09G3/3233 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/043

摘要： Disclosed herein is a display device, including a display portion including a plurality of first wirings and a plurality of second wirings each disposed in rows, respectively, a plurality of third wirings disposed in columns, respectively, and a plurality of light emitting elements and a plurality of pixel circuits each disposed in a matrix, a first drive portion for successively applying a selection pulse containing a first voltage, a second voltage and a third voltage to the plurality of first wirings, a second drive portion for successively applying a current control pulse in accordance with which a transient current is caused to flow through the pixel circuit to the plurality of second wirings, and a third drive portion for applying a signal pulse containing a signal potential corresponding to a video signal to each of the plurality of third wirings.

摘要翻译： 本文公开了一种显示装置，包括显示部分，包括多个第一布线和多个第二布线，每个第二布线分别布置成多列布置在列中的多个第三布线和多个发光元件和 多个像素电路，各自设置在矩阵中，第一驱动部分，用于连续地对多个第一布线施加包含第一电压，第二电压和第三电压的选择脉冲;第二驱动部分，用于连续施加电流控制脉冲 使得瞬态电流通过像素电路流过多个第二布线;以及第三驱动部分，用于将包含对应于视频信号的信号电位的信号脉冲施加到多个第三布线中的每一个。

公开(公告)号：US20090115765A1

公开(公告)日：2009-05-07

申请号：US12285592

申请日：2008-10-09

申请人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0256

摘要： Disclosed herein is a method of driving an organic electroluminescence emission portion, the driving method including the steps of: executing steps from preprocessing step to writing step for at least continuous three scanning time periods; applying a first node initialization voltage to corresponding one of the data lines, and supplying the video signal instead of the first node initialization voltage for each of the scanning time periods; applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in the ON state, thereby initializing the potential at the first node; and applying the first node initialization voltage from the corresponding one of the data lines to the first node through the write transistor held in an ON state, thereby holding the potential at the first node.

摘要翻译： 本发明公开了一种驱动有机电致发光发射部分的方法，所述驱动方法包括以下步骤：执行从预处理步骤至写入步骤至少连续三个扫描时间段的步骤; 将第一节点初始化电压施加到所述数据线中的相应一个，并且为每个所述扫描时间段提供所述视频信号而不是所述第一节点初始化电压; 通过保持在ON状态的写晶体管将来自相应数据线的第一节点初始化电压施加到第一节点，从而初始化第一节点处的电位; 以及通过保持在ON状态的写晶体管将来自所述数据线中的相应一条数据线的所述第一节点初始化电压施加到所述第一节点，从而将所述电位保持在所述第一节点处。

公开(公告)号：US20090002354A1

公开(公告)日：2009-01-01

申请号：US12149867

申请日：2008-05-09

申请人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Naobumi Toyomura ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0223

摘要： A display device includes a display unit, a horizontal drive circuit, and a vertical drive circuit, the display unit including pixels in a matrix formation, as well as respective signal lines and scan lines via which the drive circuits drive the pixels. Each pixel includes a light-emitting element, a hold capacitor, a write transistor, and a drive transistor. Mobility fluctuations in the drive transistor are compensated for by successively setting the voltage of the signal line to an intermediate voltage and to a tone voltage. In addition, the intermediate voltage is varied in accordance with the tone voltage as well as with the distance from the input terminal of a write signal to a respective pixel. The device thereby compensates for mobility fluctuations in the drive transistor and prevents shading due to irregularities in the waveform of the write signal.

摘要翻译： 显示装置包括显示单元，水平驱动电路和垂直驱动电路，所述显示单元包括矩阵结构中的像素以及驱动电路驱动像素的相应信号线和扫描线。 每个像素包括发光元件，保持电容器，写入晶体管和驱动晶体管。 通过将信号线的电压连续地设定为中间电压和音调电压来补偿驱动晶体管的移动性波动。 此外，中间电压根据音调电压以及与写入信号的输入端子到相应像素的距离而变化。 因此，该装置补偿驱动晶体管中的迁移率波动，并且防止由于写入信号的波形中的不规则引起的阴影。

公开(公告)号：US20080001545A1

公开(公告)日：2008-01-03

申请号：US11808522

申请日：2007-06-11

申请人： Katsuhide Uchino ,  Junichi Yamashita ,  Naobumi Toyomura

发明人： Katsuhide Uchino ,  Junichi Yamashita ,  Naobumi Toyomura

IPC分类号： H05B37/00

CPC分类号： G09G3/3208 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0256 ,  G09G2310/066 ,  G09G2320/043

摘要： A display apparatus includes a pixel array section and a driving section configured to drive the pixel array section. The pixel array section includes a plurality of first scanning lines and a plurality of second scanning lines extending along rows, a plurality of signal lines extending along columns, a plurality of pixels arranged in a matrix at positions at which the first and second scanning lines and the signal lines intersect with each other, and a plurality of power supply lines and a plurality of ground lines configured to perform feeding to the pixels. The driving section includes a first scanner, a second scanner, and a signal selector. Each of the pixels includes a light emitting element, a sampling transistor, a drive transistor, a switching transistor, and a pixel capacitance.

摘要翻译： 显示装置包括像素阵列部分和被配置为驱动像素阵列部分的驱动部分。 像素阵列部分包括沿行延伸的多条第一扫描线和多条第二扫描线，沿列延伸的多条信号线，在第一和第二条扫描线和 信号线彼此相交，并且多个电源线和多个地线被配置为对像素进行馈送。 驱动部分包括第一扫描器，第二扫描器和信号选择器。 每个像素包括发光元件，采样晶体管，驱动晶体管，开关晶体管和像素电容。

公开(公告)号：US08847999B2

公开(公告)日：2014-09-30

申请号：US12923764

申请日：2010-10-07

申请人： Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G5/10 ,  G09G3/32

CPC分类号： G09G3/3225 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2340/16

摘要： A display device includes: a display section including a plurality of pixels each having a light emitting element and a pixel circuit; and a drive circuit performing display drive on the plurality of pixels through selecting each of the plurality of pixels to write a first signal voltage and a second signal voltage in this order into the selected pixel, the first and second signal voltages being provided based on a video signal. The drive circuit varies magnitude of each of the first and second signal voltages in accordance with a gray-scale value of the video signal, thereby performing gray-scale interpolation on a light emission luminance level for each of the light emitting elements.

摘要翻译： 显示装置包括：显示部，包括多个像素，每个像素具有发光元件和像素电路; 以及驱动电路，通过选择所述多个像素中的每一个来依次对所述多个像素执行显示驱动，以将所述第一信号电压和第二信号电压依次写入所选择的像素中，所述第一和第二信号电压基于 视频信号。 驱动电路根据视频信号的灰度值来改变第一和第二信号电压中的每一个的幅度，从而对每个发光元件的发光亮度级进行灰度级插值。

公开(公告)号：US08780022B2

公开(公告)日：2014-07-15

申请号：US13526602

申请日：2012-06-19

申请人： Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251

摘要： A pixel circuit and driving method are disclosed, wherein the pixel circuit comprises a first transistor, a second transistor, and a capacitor. The first transistor is connected between a power source and a light emission portion, and the second transistor is connected to a data line. The capacitor is initialized according to a potential, and a video signal is applied from the data line to the capacitor through the second transistor. For driving, an initialization voltage is applied to the data line and the video signal is supplied to the data line, with the second transistor being turned ON prior to applying the initialization voltage to the data line.

摘要翻译： 公开了像素电路和驱动方法，其中像素电路包括第一晶体管，第二晶体管和电容器。 第一晶体管连接在电源和发光部分之间，第二晶体管连接到数据线。 根据电位对电容器进行初始化，并通过第二晶体管从数据线向电容器施加视频信号。 对于驱动，将初始化电压施加到数据线，并且将视频信号提供给数据线，同时第二晶体管在将初始化电压施加到数据线之前被接通。

公开(公告)号：US08681082B2

公开(公告)日：2014-03-25

申请号：US12917031

申请日：2010-11-01

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0281 ,  G09G2320/0223

摘要： A display device includes: pixels each including a light-emitting element; scan lines and signal lines; a scan line drive circuit applying a selection pulse to each of the scan lines in succession; and a signal line drive circuit writing video signals to respective selected pixels through switching a gray-scale interpolation voltage, a basic voltage, and a video signal voltage to apply each voltage selected by switching to each of the signal lines. The signal line drive circuit performs gray-scale interpolation on a light emission luminance level for each of the light emitting elements through setting the video signal voltage to a fundamental gray-scale voltage, and through varying the gray-scale interpolation voltage. The scan line drive circuit starts and completes an application of the selection pulse during each of a period of a gray-scale interpolation voltage, a period of a basic voltage and a period of a video signal voltage.

摘要翻译： 显示装置包括：各自包括发光元件的像素; 扫描线和信号线; 扫描线驱动电路，连续地对每条扫描线施加选择脉冲; 以及信号线驱动电路，通过切换灰度内插电压，基本电压和视频信号电压将视频信号写入各选择像素，以将通过切换选择的每个电压施加到每个信号线。 信号线驱动电路通过将视频信号电压设定为基本灰度级电压，并通过改变灰度内插电压，对发光元件的发光亮度等级进行灰阶插值。 扫描线驱动电路在灰度插值电压，基本电压的周期和视频信号电压的周期的每个周期期间开始并完成选择脉冲的施加。

公开(公告)号：US08593445B2

公开(公告)日：2013-11-26

申请号：US12433014

申请日：2009-04-30

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2320/02 ,  G09G2320/0223 ,  G09G2320/043

摘要： A display apparatus employs a pixel array section including pixel circuits forming a matrix, signal lines as columns, scan lines as rows and power-supply lines, and driving sections. The driving sections are a signal selector, a write scanner and a drive scanner. The signal selector provides an electric potential representing a gradation or a predetermined reference electric potential. The write scanner provides a control signal. The drive scanner provides a power-supply voltage changing the electric potential from high to low. The drive scanner drives adjacent power-supply lines as a group. The number of lines as a group is determined in advance. The drive scanner switches a power-supply voltage from high to low and vice versa, and applies the voltage to groups by shifting the phase from group to group. The voltage is supplied to a group at the same phase and switched the electric potential.

摘要翻译： 显示装置采用包括形成矩阵的像素电路，信号线作为列，扫描线作为行和电源线以及驱动部的像素阵列部。 驱动部分是信号选择器，写入扫描器和驱动扫描器。 信号选择器提供表示灰度或预定参考电位的电位。 写入扫描器提供控制信号。 驱动器扫描器提供将电位从高变为低的电源电压。 驱动器扫描器作为一组驱动相邻的电源线。 作为组的行数预先确定。 驱动器扫描器将电源电压从高电平切换到低电平，反之亦然，并通过将相位从组间转换到组来将电压施加到组。 电压以相同的相位提供给组，并切换电位。

公开(公告)号：US20130083000A1

公开(公告)日：2013-04-04

申请号：US13611234

申请日：2012-09-12

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861

摘要： Disclosed herein is a pixel circuit including: a light-emitting device; a constant current drive circuit configured to include a first transistor as a constant current source for supplying a predetermined current to the light-emitting device; a second transistor configured to open/close electrical connection between the first transistor and the light-emitting device; and a switching circuit configured to switch between an on state and an off state of the second transistor by controlling a gate voltage of the second transistor.

摘要翻译： 这里公开了一种像素电路，包括：发光器件; 恒流驱动电路，被配置为包括用于向所述发光装置提供预定电流的恒流源的第一晶体管; 第二晶体管，被配置为打开/关闭所述第一晶体管和所述发光器件之间的电连接; 以及开关电路，被配置为通过控制第二晶体管的栅极电压在第二晶体管的导通状态和截止状态之间切换。