公开(公告)号：US20070091014A1

公开(公告)日：2007-04-26

申请号：US10581076

申请日：2004-11-18

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/20

CPC分类号： G09G3/3266 ,  G09G2300/0408 ,  G09G2300/0417

摘要： The present invention is applied to a flat display apparatuses using organic EL devices. Switching circuits implemented by a set of transistors TR1 and TR2 that perform on/off operations in a complementary manner form a series circuit, an output of the connection midpoint of the series circuit is output to an inverter circuit 33, an input signal IN is input to one end of the series circuit, and a signal that is output from an inverter circuit 34 and that corresponds to the output of the connection midpoint of the series circuit is supplied to an opposite end of the series circuit.

摘要翻译： 本发明应用于使用有机EL器件的平面显示装置。 由串联电路进行开关动作的晶体管TR1，TR2构成的开关电路形成串联电路，将串联电路的连接中点的输出输出到逆变器电路33，输入信号IN被输入 到串联电路的一端，并且从反相器电路34输出并且对应于串联电路的连接中点的输出的信号被提供给串联电路的相对端。

公开(公告)号：US20070052644A1

公开(公告)日：2007-03-08

申请号：US10578002

申请日：2004-11-10

申请人： Katsuhide Uchino ,  Junichi Yamashita ,  Tetsuro Yamamoto

发明人： Katsuhide Uchino ,  Junichi Yamashita ,  Tetsuro Yamamoto

IPC分类号： G09G3/36

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

摘要： A pixel circuit, a display device, and a method of driving a pixel circuit able to obtain a source-follower output without luminance deterioration even when the current-voltage characteristic of a light emitting element changes due to aging, making a source-follower circuit of n-channel transistors possible, and in addition able to display uniform and high quality images not without regard to variations of threshold values and mobilities of the active elements inside pixels, wherein a capacitor C111 is connected between a gate and a source of a TFT 111, the source side of the TFT 111 is connected to a fixed potential (GND) through a TFT 114, a predetermined reference current Iref is supplied to the source of the TFT 111 with a predetermined timing, a voltage corresponding to the reference current Iref is held, and an input signal voltage centered about the voltage is coupled, whereby an EL light emitting element 19 is driven centered about the center value of variation of the mobilities.

摘要翻译： 像素电路，显示装置和驱动像素电路的方法，即使当发光元件的电流 - 电压特性由于老化而变化时，能够获得不依赖于亮度劣化的源极跟随器输出的像素电路，从而使源极跟随器电路 的n沟道晶体管，并且还能够显示均匀和高质量的图像，而不考虑像素内的有源元件的阈值和迁移率的变化，其中电容器C 111连接在栅极和源极之间 TFT111中，TFT111的源极侧通过TFT114连接到固定电位（GND），预定的基准电流Iref以规定的时刻被提供给TFT111的源极，与基准电流对应的电压 Iref被保持，并且以电压为中心的输入信号电压被耦合，由此EL发光元件19被驱动为围绕移动的变化的中心值 关系

公开(公告)号：US07119778B2

公开(公告)日：2006-10-10

申请号：US10271436

申请日：2002-10-15

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2310/0248

摘要： A display apparatus is disclosed which uses an improved precharge method and includes a reduced number of precharge switches. A pixel array section includes gate lines disposed in the direction of a row, signal lines disposed in the direction of a column, and pixels arranged in rows and columns at points at which the gate lines and the signal lines intersect with each other. A precharge switch is connected between a precharge line and each of the signal lines. A precharge drive circuit performs batch precharge wherein it drives the precharge switches at a time within a horizontal blanking period preceding to a horizontal scanning period to apply a precharge signal of a first level at a time to the signal lines and sequential precharge wherein it successively drives the precharge switches within the horizontal scanning period to successively apply a precharge signal of a second level to the signal lines.

公开(公告)号：US20050007357A1

公开(公告)日：2005-01-13

申请号：US10847414

申请日：2004-05-18

申请人： Junichi Yamashita ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Junichi Yamashita ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： H01L51/50 ,  G09F9/30 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  G09G3/36 ,  G09G5/00 ,  H05B33/00 ,  H05B33/14

CPC分类号： G09G3/3233 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/043

摘要： A pixel circuit able to stably and correctly supply a current having a desired value to a light emitting diode of each pixel without being influenced by variation of a threshold value of an active element inside the pixel or variation of mobility and able to display a high quality image as a result of this, wherein a TFT as a fourth switch is turned on together with a TFT as a second switch at the time of an auto-zero operation, a reference current line is connected to a drive transistor of the pixel through a first node, and the variation of the threshold value Vth is corrected, whereby variation of the on current due to the mobility at the time of a white display can be suppressed and the uniformity with respect to variation in the mobility can be greatly enhanced, and a display device and a driving method of the pixel circuit.

摘要翻译： 一种像素电路，其能够稳定且正确地将具有期望值的电流提供给每个像素的发光二极管，而不受像素内部的有源元件的阈值的变化或移动性的变化的影响，并且能够显示高质量 作为其结果的图像，其中在自动归零操作时，作为第四开关的TFT与作为第二开关的TFT一起导通，参考电流线通过a的像素连接到像素的驱动晶体管 第一节点，并且校正阈值Vth的变化，由此可以抑制由于白色显示时的迁移率引起的导通电流的变化，并且可以大大提高关于移动性的变化的均匀性，以及 像素电路的显示装置和驱动方法。

公开(公告)号：US06356253B2

公开(公告)日：2002-03-12

申请号：US08988783

申请日：1997-12-11

申请人： Katsuhide Uchino ,  Toshikazu Maekawa

发明人： Katsuhide Uchino ,  Toshikazu Maekawa

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G3/3648 ,  G09G2310/0248 ,  G09G2320/0214

摘要： An active-matrix display device includes rows of gate lines, columns of signal lines, and a matrix of liquid-crystal pixels provided in the region where the gate lines and the signal lines intersect. Vertical scanners sequentially scan each gate line during one vertical period, and select one row of liquid-crystal pixels. A horizontal scanner samples video signal for each signal line, and writes the video signal in the one row of liquid-crystal pixels selected within one horizontal period. A voltage applying means applies to each signal line a voltage equal to or less than the minimum level of the video signal in one horizontal period excluding a time assigned for writing the video signal in one row of liquid-crystal pixels. The repeated application of the voltage during one vertical period approximately equalizes signal leakages from all the pixels, whereby vertical crosstalk can be suppressed.

摘要翻译： 有源矩阵显示装置包括行栅极线，信号线列和设置在栅极线和信号线相交的区域中的液晶像素的矩阵。 垂直扫描仪在一个垂直周期内顺序扫描每条栅极线，并选择一行液晶像素。 水平扫描器针对每个信号线对视频信号进行采样，并将视频信号写入在一个水平周期内选择的一行液晶像素中。 电压施加装置在一个水平周期内对每个信号线施加等于或小于视频信号的最小电平的电压，除了在一行液晶像素中分配用于写入视频信号的时间。 在一个垂直周期期间重复施加电压近似地均衡来自所有像素的信号泄漏，由此可以抑制垂直串扰。

公开(公告)号：US09552764B2

公开(公告)日：2017-01-24

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 ,  G09G3/32

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：US09379171B2

公开(公告)日：2016-06-28

申请号：US11892726

申请日：2007-08-27

申请人： Tetsuo Minami ,  Yukihito Iida ,  Katsuhide Uchino

发明人： Tetsuo Minami ,  Yukihito Iida ,  Katsuhide Uchino

IPC分类号： G09G3/10 ,  H01J9/24 ,  H01L27/32 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2320/0233 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L2227/323

摘要： Disclosed herein is a display device including, a pixel array portion, a drive portion; and a power source wiring; the pixel array portion, at least a part of the drive portion configured to drive the pixel array portion and the power source wiring form a panel, the pixel array portion includes scanning lines disposed in rows, signal lines disposed in columns, and pixels disposed in matrix in portions where the scanning lines and the signal lines cross each other, respectively, and the drive portion includes a scanner portion configured to drive the pixels in a line-sequential manner through the scanning lines, and a signal portion configured to supply a video signal to each of the signal lines in correspondence to the line-sequential drive, so that an image is displayed on the pixel array portion.

摘要翻译： 这里公开了一种显示装置，包括：像素阵列部分，驱动部分; 和电源线; 像素阵列部分，被配置为驱动像素阵列部分和电源布线的驱动部分的至少一部分形成面板，像素阵列部分包括设置成行的扫描线，设置在列中的信号线，以及设置在像素阵列部分中的像素 扫描线和信号线分别彼此交叉的部分中的矩阵，并且驱动部分包括被配置为以线顺序方式驱动像素通过扫描线的扫描器部分和被配置为提供视频的信号部分 向与行顺序驱动对应的每个信号线发送信号，从而在像素阵列部分上显示图像。

公开(公告)号：US09336711B2

公开(公告)日：2016-05-10

申请号：US12926617

申请日：2010-11-30

申请人： Naobumi Toyomura ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Katsuhide Uchino

IPC分类号： G09G5/10 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0251

摘要： Disclosed herein is a display device including a pixel array configured to include pixel circuits arranged in a matrix having a light emitting element, driving transistor, sampling transistor, and hold capacitor. The display device further includes a signal selector, driving control scanner, and writing scanner. The signal selector alternately carries out supply of a video signal voltage in order from a beginning line to an end line in a unit and supply of a video signal voltage in order from an end line to a beginning line in a unit. The writing scanner outputs the pulse to the writing control lines in such a way that input of a video signal voltage in order from a beginning line to an end line in a unit and input of a video signal voltage in order from an end line to a beginning line in a unit are alternately carried out.

摘要翻译： 这里公开了一种显示装置，其包括像素阵列，该像素阵列被配置为包括以具有发光元件，驱动晶体管，采样晶体管和保持电容器的矩阵布置的像素电路。 显示装置还包括信号选择器，驱动控制扫描器和写入扫描器。 信号选择器以单位从开始行到结束行交替地执行视频信号电压的供给，并且以单位从终点线到起始行的顺序提供视频信号电压。 写入扫描器以这样一种方式将写入控制线输出脉冲，从而从视频信号电压的单位开始到终止行的顺序输入视频信号电压，并从视频信号电压的终端到第 交替执行单位的起始行。

公开(公告)号：US09286828B2

公开(公告)日：2016-03-15

申请号：US12285753

申请日：2008-10-14

申请人： Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： G06F3/038 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0251 ,  G09G2320/043

摘要： A plurality of scanning periods are combined to form a composite period (2H). Within the first period of the front half, threshold value (Vth) correction is carried out all at once, and within the second period of the latter half, signal (Vsig) writing operation is carried out. High speed writing can be carried out even where the scanning period is shortened.

公开(公告)号：US09263505B2

公开(公告)日：2016-02-16

申请号：US12078239

申请日：2008-03-28

申请人： Hiroshi Sagawa ,  Katsuhide Uchino ,  Tetsuro Yamamoto

发明人： Hiroshi Sagawa ,  Katsuhide Uchino ,  Tetsuro Yamamoto

IPC分类号： G09G3/32 ,  H01L27/32

CPC分类号： G09G3/3208 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2320/043 ,  G09G2320/045 ,  H01L27/1222 ,  H01L27/1255 ,  H01L27/3244 ,  H01L27/3265

摘要： Disclosed herein is a display including: a pixel array part configured to include pixels that are arranged in a matrix, each having an electro-optical element, a write transistor for writing a video signal, a drive transistor for driving the electro-optical element based on the video signal written by the write transistor, and a holding capacitor connected between the gate and source of the drive transistor, wherein the holding capacitor includes a first electrode, a second electrode disposed to face one surface of the first electrode for forming a first capacitor, and a third electrode disposed to face the other surface of the first electrode for forming a second capacitor, and the first capacitor and the second capacitor are connected in parallel to each other electrically.

摘要翻译： 这里公开了一种显示器，包括：像素阵列部分，被配置为包括以矩阵形式布置的像素，每个像素具有电光元件，用于写入视频信号的写入晶体管，用于驱动电光元件的驱动晶体管， 对由写入晶体管写入的视频信号和连接在驱动晶体管的栅极和源极之间的保持电容器，其中保持电容器包括第一电极，第二电极设置为面对第一电极的一个表面，用于形成第一 电容器和与第一电极的另一表面对置以形成第二电容器的第三电极，并且第一电容器和第二电容器彼此并联连接。