公开(公告)号：US20090073094A1

公开(公告)日：2009-03-19

申请号：US12212691

申请日：2008-09-18

申请人： Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Mitsuhide Miyamoto

发明人： Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Mitsuhide Miyamoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2320/0285 ,  G09G2320/043

摘要： To detect reduction of luminous efficiency of respective light-emitting elements arranged in a matrix state while suppressing increase of costs.Plural pixels each having a current-drive type light emitting element, plural signal lines inputting image voltage to respective pixels and a pixel selection circuit for selecting pixels into which the image voltage is written through the plural signal lines from the plural pixels are included, in which the pixel selection circuit has plural detection gate lines, in which each pixel has a drive transistor a first electrode of which is connected to a power source line and a second electrode of which is connected to one end of the light emitting element and a detection transistor a first electrode of which is connected to one end of the light emitting element and a second electrode of which is connected to a corresponding signal line in the signal lines, in which the other end of the light emitting element of each pixel is connected to a reference potential, in which a gate electrode of the detection transistor is connected to a corresponding detection gate line in the plural detection gate lines, and in which the detection transistor is turned on during a detection period.

摘要翻译： 以抑制成本增加的方式来检测排列成矩阵状态的各发光元件的发光效率的降低。 每个具有电流驱动型发光元件的多个像素，向各个像素输入图像电压的多个信号线以及用于选择通过多个像素的多个信号线写入图像电压的像素的像素选择电路被包括在 像素选择电路具有多个检测栅极线，其中每个像素具有驱动晶体管，其驱动晶体管的第一电极连接到电源线，第二电极连接到发光元件的一端，并且检测 晶体管，其第一电极连接到发光元件的一端，其第二电极连接到信号线中的相应信号线，其中每个像素的发光元件的另一端连接到 其中检测晶体管的栅电极连接到多个检测g中的对应的检测栅极线的参考电位 并且在检测期间检测晶体管导通。

公开(公告)号：US20080315890A1

公开(公告)日：2008-12-25

申请号：US12139577

申请日：2008-06-16

申请人： Naruhiko KASAI ,  Yasuyuki Kudo ,  Yukari Katayama ,  Hajime Akimoto

发明人： Naruhiko KASAI ,  Yasuyuki Kudo ,  Yukari Katayama ,  Hajime Akimoto

IPC分类号： G01R31/08

CPC分类号： G09G3/006 ,  G09G2300/0809 ,  G09G2310/0275 ,  G09G2320/0285 ,  G09G2330/10 ,  G09G2330/12

摘要： An image display device includes a black spot defect position determination circuit which determines a position of a black-spot defective pixel of a self-luminous display panel. A detection-use current source in the black spot defect position determination circuit is connected to pixels during a period separate from a display period of data signals thus determining a black spot defect. The position of the black spot defect is stored in a storing circuit and is transmitted to a display and detection control circuit. The display and detection control circuit corrects the data signals to the pixels around the defective pixel based on a black spot defect position, and drives a data line drive circuit based on the corrected data signals thus visually correcting the black spot defect.

摘要翻译： 图像显示装置包括确定自发光显示面板的黑点缺陷像素的位置的黑点缺陷位置确定电路。 在黑点缺陷位置确定电路中的检测用电流源在与数据信号的显示周期分开的周期内连接到像素，从而确定黑点缺陷。 黑点缺陷的位置存储在存储电路中，并被发送到显示和检测控制电路。 显示和检测控制电路基于黑斑缺陷位置将数据信号校正到缺陷像素周围的像素，并且基于校正的数据信号驱动数据线驱动电路，从而可视地校正黑斑缺陷。

公开(公告)号：US20080218451A1

公开(公告)日：2008-09-11

申请号：US12000293

申请日：2007-12-11

申请人： Mitsuhide Miyamoto ,  Tohru Kohno ,  Masato Ishii ,  Naruhiko Kasai ,  Hajime Akimoto

发明人： Mitsuhide Miyamoto ,  Tohru Kohno ,  Masato Ishii ,  Naruhiko Kasai ,  Hajime Akimoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0809 ,  G09G2320/0285 ,  G09G2320/046 ,  G09G2330/08 ,  G09G2330/10

摘要： The voltage-current property of the specific pixel is measured to store the data on a single line in a line memory. The property data of adjacent pixels are compared. A failure determination unit detects whether or not the pixel to be compared is faulty. If it is determined as being faulty, the faulty pixel is removed from the pixel group to be compared. The burn-in determination unit performs the comparison using normal pixels only to provide the correct burn-in data. The calculation unit reflects the burn-in data in the image data from the host.

摘要翻译： 测量特定像素的电压 - 电流特性以将数据存储在行存储器中的单行上。 比较相邻像素的属性数据。 故障确定单元检测要比较的像素是否有故障。 如果确定为有故障，则从要比较的像素组中去除故障像素。 老化确定单元仅使用正常像素执行比较，以提供正确的老化数据。 计算单元反映来自主机的图像数据中的老化数据。

公开(公告)号：US07379044B2

公开(公告)日：2008-05-27

申请号：US11802296

申请日：2007-05-22

申请人： Hiroshi Kageyama ,  Hajime Akimoto

发明人： Hiroshi Kageyama ,  Hajime Akimoto

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/3258 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/066 ,  G09G2320/0276 ,  G09G2320/043

摘要： An image display apparatus includes pixels each having a light emitting element and a pixel circuit, analog signal lines and current-supply lines. The pixel circuit includes first and second TFTs and first and second capacitors. Drain and source electrodes of the first TFT are coupled to the light emitting element and one of the current-supply lines, respectively, and drain and source electrodes of the second TFT are coupled to a gate electrode of the first TET and one of wiring lines within the pixel circuit, respectively. Two electrodes of the first capacitor are coupled to the gate electrode of the first TFT and one of the wiring lines within the pixel circuit, respectively. Two electrodes of the second capacitor are coupled to a gate electrode of the second TFT and a line supplied with a triangular waveform voltage, respectively.

摘要翻译： 图像显示装置包括各自具有发光元件和像素电路，模拟信号线和电流供给线的像素。 像素电路包括第一和第二TFT以及第一和第二电容器。 第一TFT的漏极和源极分别耦合到发光元件，并且电流供给线中的一个和第二TFT的漏极和源极连接到第一TET的栅电极和布线之一 分别在像素电路内。 第一电容器的两个电极分别耦合到第一TFT的栅电极和像素电路内的布线之一。 第二电容器的两个电极分别耦合到第二TFT的栅电极和三角波形电压的线。

公开(公告)号：US20070222732A1

公开(公告)日：2007-09-27

申请号：US11802296

申请日：2007-05-22

申请人： Hiroshi Kageyama ,  Hajime Akimoto

发明人： Hiroshi Kageyama ,  Hajime Akimoto

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/3258 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/066 ,  G09G2320/0276 ,  G09G2320/043

摘要： An image display apparatus includes pixels each having a light emitting element and a pixel circuit, analog signal lines and current-supply lines. The pixel circuit includes first and second TFTs and first and second capacitors. Drain and source electrodes of the first TFT are coupled to the light emitting element and one of the current-supply lines, respectively, and drain and source electrodes of the second TFT are coupled to a gate electrode of the first TFT and one of wiring lines within the pixel circuit, respectively. Two electrodes of the first capacitor are coupled to the gate electrode of the first TFT and one of the wiring lines within the pixel circuit, respectively. Two electrodes of the second capacitor are coupled to a gate electrode of the second TFT and a line supplied with a sweep voltage, respectively.

摘要翻译： 图像显示装置包括各自具有发光元件和像素电路，模拟信号线和电流供给线的像素。 像素电路包括第一和第二TFT以及第一和第二电容器。 第一TFT的漏极和源极分别耦合到发光元件，并且电流供给线中的一个，第二TFT的漏极和源极连接到第一TFT的栅电极和布线之一 分别在像素电路内。 第一电容器的两个电极分别耦合到第一TFT的栅电极和像素电路内的布线之一。 第二电容器的两个电极分别耦合到第二TFT的栅电极和分别具有扫描电压的线。

公开(公告)号：US20070200818A1

公开(公告)日：2007-08-30

申请号：US11673836

申请日：2007-02-12

申请人： Mitsuhide Miyamoto ,  Hajime Akimoto

发明人： Mitsuhide Miyamoto ,  Hajime Akimoto

IPC分类号： G09G3/36

CPC分类号： G09G3/20 ,  G09G3/3208 ,  G09G3/3688 ,  G09G2310/0221 ,  G09G2310/0275 ,  G09G2330/021

摘要： An image display device for displaying a screen containing both moving image data, and image data stored in the internal memory with lower power consumption. The image display device contains a switch for controlling transfer to a display area for image data stored in the internal memory installed outside the display area, and a switch for controlling transfer to a display area for image data (such as moving image data) other than the image data stored in the internal memory. The image display device controls switching according to the display position of both image data types.

摘要翻译： 一种用于以较低的功耗显示包含运动图像数据和存储在内部存储器中的图像数据的屏幕的图像显示装置。 图像显示装置包括用于控制向显示区域传送存储在安装在显示区域外部的内部存储器中的图像数据的开关，以及用于控制向除了显示区域之外的图像数据（诸如运动图像数据）的显示区域的传送的开关 存储在内部存储器中的图像数据。 图像显示装置根据两个图像数据类型的显示位置来控制切换。

公开(公告)号：US07221343B2

公开(公告)日：2007-05-22

申请号：US10438838

申请日：2003-05-16

申请人： Hiroshi Kageyama ,  Hajime Akimoto

发明人： Hiroshi Kageyama ,  Hajime Akimoto

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/3258 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/066 ,  G09G2320/0276 ,  G09G2320/043

摘要： There is provided an image display apparatus having light emitting elements in its pixels, producing high resolution, facilitating γ correction, and free from occurrence of pseudo contours. A pixel circuit of the image display apparatus of the present invention with a switch circuit for switching between two states of supply and cutoff of a current to the light emitting element, a preset circuit for presetting the switch circuit at one of the two states independently of an analog display voltage signal, and a reset circuit for reversing the one of the two states of the switch circuit based upon the analog display voltage signal.

摘要翻译： 提供了一种在其像素中具有发光元件的图像显示装置，产生高分辨率，便于伽马校正，并且不发生伪轮廓。 本发明的图像显示装置的像素电路具有切换电路，用于切换两种供电状态和切断到发光元件的电流;预置电路，用于将开关电路预设为两种状态之一，独立于 模拟显示电压信号，以及用于基于模拟显示电压信号反转开关电路的两个状态中的一个状态的复位电路。

公开(公告)号：US07205965B2

公开(公告)日：2007-04-17

申请号：US10630706

申请日：2003-07-31

申请人： Yoshiro Mikami ,  Takayuki Ouchi ,  Hajime Akimoto ,  Toshihiro Satou

发明人： Yoshiro Mikami ,  Takayuki Ouchi ,  Hajime Akimoto ,  Toshihiro Satou

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0261

摘要： An image display apparatus includes a plurality of scanning wires in an image display region for transmitting a scanning signal, a plurality of signal wires intersecting the plurality of scanning wires in the image display region for transmitting a signal voltage, a plurality of current driven electroooptical display elements each arranged in a pixel region surrounded by the wires connected to a common power supply, a plurality of driving elements in the pixel region connected with the electro-optical display elements and a plurality of memory control circuits for holding the signal voltage in response to the scanning signal to control driving of the driving elements based on the held signal voltage. The memory control circuit samples and holds the signal voltage while blocking a bias voltage from being applied to the driving elements, and subsequently applies the driving elements with the held signal voltage as the bias voltage.

摘要翻译： 图像显示装置包括用于发送扫描信号的图像显示区域中的多条扫描线，在图像显示区域中与多条扫描线相交的多条信号线，用于发送信号电压，多条电流驱动电光显示器 每个元件布置在由连接到公共电源的电线围绕的像素区域中，与电光显示元件连接的像素区域中的多个驱动元件和用于保持信号电压的多个存储器控制电路 所述扫描信号基于所述保持的信号电压来控制所述驱动元件的驱动。 存储器控制电路在阻挡施加到驱动元件的偏置电压的同时采样并保持信号电压，并且随后以保持的信号电压作为偏置电压施加驱动元件。

公开(公告)号：US20070030234A1

公开(公告)日：2007-02-08

申请号：US11485293

申请日：2006-07-13

申请人： Hajime Akimoto ,  Hiroshi Kageyama

发明人： Hajime Akimoto ,  Hiroshi Kageyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/2011 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2310/0248 ,  G09G2310/027

摘要： A low price image display device which has a smaller number of mounted components and allows high-accuracy display, is provided by making proper use of both a high-accuracy, low-voltage DA converter IC and a DA converter circuit having high-voltage TFTs formed on an insulated substrate in accordance with a display signal value.

摘要翻译： 通过适当使用具有高电压TFT的高精度，低电压DA转换器IC和DA转换器电路，提供具有较少数量的安装部件并允许高精度显示的低价图像显示装置 根据显示信号值在绝缘基板上形成。

公开(公告)号：US07142180B2

公开(公告)日：2006-11-28

申请号：US11095615

申请日：2005-04-01

申请人： Hajime Akimoto ,  Shigeyuki Nishitani ,  Shinichi Komura ,  Toshihiro Sato ,  Hiroshi Kageyama ,  Yoshiteru Shimizu

发明人： Hajime Akimoto ,  Shigeyuki Nishitani ,  Shinichi Komura ,  Toshihiro Sato ,  Hiroshi Kageyama ,  Yoshiteru Shimizu

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3258 ,  G09G3/2014 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/066 ,  G09G2320/0233

摘要： An image display capable of multilevel display and having a minimal pixel-to-pixel display characteristic variation. The image display having a display area of a plurality of pixels and a signal line for feeding a display signal voltage to the pixels, comprises, in at least one of the plurality of pixels: a memory for storing the display signal voltage entered from the signal line to the pixel; a pixel turn-on period decision section for determining an ON period and an OFF period for an image output in the pixel according to the display signal voltage; and a pixel driver for repeating an ON operation of the image output a plurality of times in one frame.