公开(公告)号：US09711082B2

公开(公告)日：2017-07-18

申请号：US12923878

申请日：2010-10-13

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819

摘要： A display apparatus includes: a pixel array including pixel circuits arranged in a matrix form, in which each pixel circuit has a light-emitting device, a drive transistor applying a current corresponding to a gate-source voltage to the light-emitting device, a sampling transistor inputting a voltage supplied from a signal line to a gate of the drive transistor, and a storage capacitor connected between the gate and source of the drive transistor so as to store a threshold voltage of the drive transistor and an input video signal voltage; a signal selector that supplies a reference voltage and the video signal voltage to signal lines arranged in columns on the pixel array in horizontal periods corresponding to the number of horizontal lines in one unit when the horizontal lines of the respective pixel circuits of the pixel array are grouped as one unit; and a scanner that applies a pulse to control lines arranged in rows on the pixel array so as to control the sampling transistor of the pixel circuit.

公开(公告)号：US08896502B2

公开(公告)日：2014-11-25

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 ,  G09G3/32

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：US08823692B2

公开(公告)日：2014-09-02

申请号：US12591523

申请日：2009-11-23

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/10 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/021

摘要： A display device includes: a pixel array unit in which pixels are arranged in a matrix shape, each of the pixels including an electro-optic element, a writing transistor that writes a video signal, a driving transistor that drives the electro-optic element according to the video signal written by the writing transistor, and a storage capacitor that is connected between a gate electrode and a source electrode of the driving transistor and stores the video signal written by the writing transistor; and a power supply line that supplies power supply potential to the pixels, the power supply potential selectively taking first potential for supplying an electric current to the driving transistor and second potential for applying reverse bias to the electro-optic element.

摘要翻译： 显示装置包括：像素阵列单元，其中像素以矩阵形状布置，每个像素包括电光元件，写入视频信号的写入晶体管，驱动电光元件的驱动晶体管，根据 涉及由写入晶体管写入的视频信号，以及存储电容器，其连接在驱动晶体管的栅极电极和源极之间，并存储由写入晶体管写入的视频信号; 以及向像素供给电源电位的电源线，所述电源电位选择性地将第一电位用于向所述驱动晶体管提供电流，以及用于向所述电光元件施加反向偏压的第二电位。

公开(公告)号：US08405586B2

公开(公告)日：2013-03-26

申请号：US12498498

申请日：2009-07-07

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： H01S3/14

CPC分类号： G09G5/001 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/02

摘要： A display device includes: a display unit including first and second lines, light emitting elements and pixel circuits; a first drive unit sequentially applying a selection pulse to the first lines; and a second drive unit applying a signal pulse including first to third voltages to each of the second lines. Each of the pixel circuits includes a first transistor sampling the signal pulse, and a second transistor driving one of the light emitting elements. The first drive unit applies the selection pulse when the first voltage is being applied by the second drive unit, before a correction of a threshold voltage of the second transistor is initiated and within a period that the one of the light emitting elements is being turned out, and the first drive unit applies the selection pulse when the second voltage is being applied by the second drive unit.

摘要翻译： 显示装置包括：显示单元，包括第一和第二行，发光元件和像素电路; 第一驱动单元，顺序地向第一行施加选择脉冲; 以及第二驱动单元，将包括第一至第三电压的信号脉冲施加到每个第二线。 每个像素电路包括对信号脉冲进行采样的第一晶体管和驱动发光元件之一的第二晶体管。 第一驱动单元在第二驱动单元施加第一电压时施加选择脉冲，在第二晶体管的阈值电压的校正开始之前，并且在发光元件的一个被退出的时段内 并且当第二驱动单元施加第二电压时，第一驱动单元施加选择脉冲。

公开(公告)号：US20130050067A1

公开(公告)日：2013-02-28

申请号：US13588495

申请日：2012-08-17

申请人： Junichi Yamashita ,  Yusuke Onoyama ,  Tetsuo Minami ,  Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Yusuke Onoyama ,  Tetsuo Minami ,  Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  H01L27/0688 ,  H01L27/3225 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3255 ,  H01L27/3262 ,  H01L27/3276

摘要： A display device includes: a plurality of light-emitting elements, each light-emitting element having a light-emitting unit and a driving circuit for driving the light-emitting unit. The driving circuit at least includes (A) a drive transistor having source/drain regions, a channel forming region, and a gate electrode, (B) a video signal write transistor having source/drain regions, a channel forming region, and a gate electrode, and (C) a capacitive unit. In the drive transistor, (A-1) one of the source/drain regions is connected to the corresponding current supply line, (A-2) the other region of the source/drain regions is connected to the light-emitting unit and connected to one end of the capacitive unit, and forms a second node, and (A-3) the gate electrode is connected to the other region of the source/drain regions of the video signal write transistor and connected to the other end of the capacitive unit, and forms a first node.

摘要翻译： 显示装置包括：多个发光元件，每个发光元件具有发光单元和用于驱动发光单元的驱动电路。 驱动电路至少包括（A）具有源极/漏极区域的驱动晶体管，沟道形成区域和栅极电极，（B）具有源极/漏极区域的视频信号写入晶体管，沟道形成区域和栅极 电极，（C）电容单元。 在驱动晶体管中，（A-1）源极/漏极区域之一连接到相应的电流源线（A-2），源极/漏极区域的另一个区域连接到发光单元并连接 并且形成第二节点，并且（A-3）栅电极连接到视频信号写入晶体管的源极/漏极区域的另一个区域，并连接到电容器的另一端 单元，并形成第一个节点。

公开(公告)号：US20120313922A1

公开(公告)日：2012-12-13

申请号：US13481443

申请日：2012-05-25

申请人： Naobumi Toyomura ,  Junichi Yamashita ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G06F3/038

CPC分类号： G09G3/3225 ,  G09G2320/0233 ,  G09G2320/045

摘要： A display device includes a display portion, a hold capacitor, a write transistor writing a drive voltage corresponding to a video signal to the hold capacitor, a drive transistor driving the display portion in accordance with the drive voltage written to the hold capacitor, and a pulse width adjusting portion adjusting a width of a pulse signal causing a drive pulse used to drive at least one of the write transistor and the drive transistor so as to correspond to an environmental change.

摘要翻译： 显示装置包括显示部分，保持电容器，将与视频信号对应的驱动电压写入保持电容器的写入晶体管;驱动晶体管，其根据写入保持电容器的驱动电压驱动显示部分;以及 脉冲宽度调节部分，调节脉冲信号的宽度，引起用于驱动写入晶体管和驱动晶体管中的至少一个的驱动脉冲，以便对应于环境变化。

公开(公告)号：US08289236B2

公开(公告)日：2012-10-16

申请号：US11984715

申请日：2007-11-21

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino ,  Naobumi Toyomura

IPC分类号： G09G3/30

CPC分类号： G09G3/3225 ,  G09G3/3233 ,  G09G2310/0251 ,  H01L27/3276 ,  H01L2251/568

摘要： An active-matrix-type organic EL display panel having pixel circuits includes a main signal and a sub-signal line wired vertically in parallel to each other. There are two horizontal, parallel wiring lines connecting the main signal line and the sub-signal line.

摘要翻译： 具有像素电路的有源矩阵型有机EL显示面板包括彼此垂直并联布线的主信号和子信号线。 连接主信号线和子信号线的两条水平并联接线。

公开(公告)号：US20110169872A1

公开(公告)日：2011-07-14

申请号：US12926423

申请日：2010-11-17

申请人： Hideki Sugimoto ,  Naobumi Toyomura

发明人： Hideki Sugimoto ,  Naobumi Toyomura

IPC分类号： G09G5/10 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2320/043

摘要： A display apparatus includes: a pixel array in which pixel circuits each having a light emitting device, a drive transistor, and a retention capacity are arranged in a matrix; a signal selector supplying a video signal voltages to signal lines arranged in columns on the pixel array; a drive control scanner providing power supply pulses to power supply control lines arranged in rows on the pixel array and applying drive voltages to the transistors; and a write scanner providing scan pulses to writing control lines arranged in rows on the pixel array and executing input of the video signal voltages to the pixel circuits. A threshold correction of setting a gate-source voltage of the transistor to a threshold voltage of the transistor and an input of the video signal voltage from the signal line to between the gate and the source of the transistor are controlled by the scan pulse of the row of the pixel circuit and the scan pulse of the previous row of the pixel circuit.

摘要翻译： 显示装置包括：像素阵列，其中各自具有发光器件，驱动晶体管和保持能力的像素电路以矩阵形式布置; 信号选择器，向像素阵列上的列排列的信号线提供视频信号电压; 驱动控制扫描器，向像素阵列上的行排列的电源控制线提供电源脉冲，并向晶体管施加驱动电压; 以及写入扫描器，向像素阵列上的行排列的写入控制线提供扫描脉冲，并且对像素电路执行视频信号电压的输入。 将晶体管的栅极 - 源极电压设置为晶体管的阈值电压和从信号线到晶体管的栅极和源极之间的视频信号电压的输入的阈值校正由晶体管的扫描脉冲 像素电路的行和像素电路的前一行的扫描脉冲。

公开(公告)号：US07876314B2

公开(公告)日：2011-01-25

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： G09G5/00

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：US20100259532A1

公开(公告)日：2010-10-14

申请号：US12659426

申请日：2010-03-09

申请人： Satoshi Tatara ,  Masatsugu Tomida ,  Naobumi Toyomura ,  Katsuhide Uchino

发明人： Satoshi Tatara ,  Masatsugu Tomida ,  Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2310/06 ,  G09G2320/043

摘要： Disclosed herein is a display device including: a pixel array configured to include pixel circuits that are arranged in a matrix and each have at least a light emitting element, a switching transistor for inputting a signal value supplied to a signal line, and a drive transistor for current application to the light emitting element dependent on the input signal value; a signal value output unit configured to output signal values given to the pixel circuits in the pixel array to the signal lines disposed on the pixel array; and a write controller configured to give, to the pixel circuits on a line-by-line basis, scan pulses for carrying out conduction control of the switching transistor and inputting the signal value on the signal line to the pixel circuit, and allow the scan pulses given to lines to each have a pulse waveform set depending on mobility of the drive transistors in a corresponding one of the lines of the pixel array.

摘要翻译： 这里公开了一种显示装置，包括：像素阵列，被配置为包括排列成矩阵并且至少具有发光元件的像素电路，用于输入提供给信号线的信号值的开关晶体管和驱动晶体管 用于根据输入信号值目前应用于发光元件; 信号值输出单元，被配置为将给予像素阵列中的像素电路的信号值输出到设置在像素阵列上的信号线; 以及写入控制器，被配置为在逐行基础上向像素电路提供用于执行开关晶体管的导通控制并将信号线上的信号值输入到像素电路的扫描脉冲，并且允许扫描 给予每行线路的脉冲具有取决于像素阵列的相应一行中的驱动晶体管的迁移率设置的脉冲波形。