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1. 发明申请

US20090109149A1 Image display device 审中-公开
标题翻译：图像显示装置
公开(公告)号：US20090109149A1
公开(公告)日：2009-04-30
申请号：US12289669
申请日：2008-10-31
申请人： Hajime Akimoto , Norihiro Nakamura , Yasuharu Yatsu , Hiroshi Kageyama , Tohru Kohno
发明人： Hajime Akimoto , Norihiro Nakamura , Yasuharu Yatsu , Hiroshi Kageyama , Tohru Kohno
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0417 , G09G2300/0842 , G09G2300/0861 , G09G2310/0259 , G09G2310/066
摘要： An image display device having a plurality of pixel, a plurality of signal lines for inputting an image voltage to each of the plurality of pixels, and a pixel selecting unit for selecting from the plurality of pixels a pixel into which the image voltage is to be written, in which each of the pixels has a light emitting device of a current driving-type, a driving transistor connected between a power line and the light emitting device, and a capacitance device having one end connected to a gate electrode of the driving transistor, the image voltage is input to the other end of the capacitance device during the writing period, an inclined wave voltage which changes a voltage level thereof according to time is input to the other end of the capacitance device during a light emission period following the writing period.
摘要翻译：具有多个像素的图像显示装置，用于向多个像素中的每一个输入图像电压的多个信号线;以及像素选择单元，用于从多个像素中选择要成为图像电压的像素写入，其中每个像素具有电流驱动型的发光器件，连接在电源线和发光器件之间的驱动晶体管，以及一端连接到驱动晶体管的栅电极的电容器件在写入期间，图像电压被输入到电容元件的另一端，在写入后的发光期间，将电压电平根据时间变化的倾斜波电压输入到电容元件的另一端期。

2. 发明申请

US20100156881A1 IMAGE DISPLAY DEVICE 审中-公开
标题翻译：图像显示设备
公开(公告)号：US20100156881A1
公开(公告)日：2010-06-24
申请号：US12647013
申请日：2009-12-24
申请人： Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama , Takahide Kuranaga
发明人： Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama , Takahide Kuranaga
IPC分类号： G06F3/038
CPC分类号： G09G3/3233 , G09G3/3283 , G09G2300/0819 , G09G2300/0842 , G09G2300/0866 , G09G2310/0235 , G09G2320/029
摘要： An image display device includes a plurality of pixels. Each of the plurality of pixels includes a self light-emitting element and a driving transistor configured to drive the self light-emitting element based on an inputted image voltage. The image display device also includes a current source configured to supply a constant current to the driving transistor and a detection section connected to a source electrode of a driving transistor of each of the plurality of pixels. The current source is connected to the source electrode of the driving transistor. The detection section detects a source voltage of the driving transistor to which the constant current is supplied during a detection period.
摘要翻译：图像显示装置包括多个像素。多个像素中的每一个包括自发光元件和被配置为基于输入的图像电压来驱动自发光元件的驱动晶体管。图像显示装置还包括被配置为向驱动晶体管提供恒定电流的电流源和连接到多个像素中的每一个的驱动晶体管的源电极的检测部分。电流源连接到驱动晶体管的源电极。在检测期间，检测部检测供给恒流的驱动晶体管的源极电压。

3. 发明授权

US08207918B2 Image display device having a set period during which a step signal is supplied at different levels to provide a uniform display 有权
标题翻译：图像显示装置具有设定周期，在此期间以不同的电平提供阶梯信号以提供均匀的显示
公开(公告)号：US08207918B2
公开(公告)日：2012-06-26
申请号：US12480804
申请日：2009-06-09
申请人： Tohru Kohno , Takahide Kuranaga , Hiroshi Kageyama , Hajime Akimoto
发明人： Tohru Kohno , Takahide Kuranaga , Hiroshi Kageyama , Hajime Akimoto
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2310/061 , G09G2320/0233 , G09G2320/043
摘要： During a first period of a set period, a reset switch element of each pixel is turned on to converge a voltage at a control electrode of a TFT to a predetermined voltage, and a step signal having a first voltage level is supplied from a step signal generation circuit. During a second period of the set period, the reset switch element is turned off, and a step signal having a second voltage level is supplied from the step signal generation circuit, whereby a voltage exceeding a second power supply voltage or a voltage exceeding a voltage range supplied from a signal driver section is input as a characteristic value set voltage to the control electrode. Accordingly, even when a relationship between a gate voltage and a drain current of the thin film transistor exhibits a hysteresis characteristic, uniform display can be achieved.
摘要翻译：在设定周期的第一时段期间，每个像素的复位开关元件导通，以将TFT的控制电极处的电压收敛到预定电压，并且从步进信号提供具有第一电压电平的阶跃信号一代电路。在设定期间的第二期间，关闭复位开关元件，从步进信号生成电路提供具有第二电压电平的阶跃信号，由此超过第二电源电压或超过电压的电压从信号驱动器部提供的范围作为特性值设定电压被输入到控制电极。因此，即使当薄膜晶体管的栅极电压和漏极电流之间的关系呈现滞后特性时，也能实现均匀的显示。

4. 发明申请

US20100053144A1 IMAGE DISPLAY DEVICE 有权
标题翻译：图像显示设备
公开(公告)号：US20100053144A1
公开(公告)日：2010-03-04
申请号：US12547613
申请日：2009-08-26
申请人： Hajime AKIMOTO , Hiroshi Kageyama , Tohru Kohno
发明人： Hajime AKIMOTO , Hiroshi Kageyama , Tohru Kohno
IPC分类号： G06F3/038
CPC分类号： G09G3/3233 , G09G2310/0262 , G09G2320/045
摘要： Provided is an image display device including: a plurality of pixel scanning lines; a plurality of signal lines; and a plurality of pixel circuits corresponding to intersections between the pixel scanning lines and the signal lines. Each of the pixel circuits includes: a driver transistor; a light emitting element for emitting light based on the current supplied from the driver transistor; a pixel switch for generating a potential based on an image signal and a scanning signal; a capacitor element for controlling the driver transistor based on a potential difference caused by the potential supplied from the pixel switch; and a reset switch for setting a potential at an end of the capacitor element to a predetermined state based on a scanning signal supplied from one of the pixel scanning lines preceding the scanning signal which corresponds to the corresponding one of the plurality of pixel circuits.
摘要翻译：提供一种图像显示装置，包括：多个像素扫描线; 多条信号线; 以及对应于像素扫描线和信号线之间的交点的多个像素电路。每个像素电路包括：驱动晶体管; 基于从驱动晶体管提供的电流发光的发光元件; 用于基于图像信号和扫描信号产生电位的像素开关; 电容器元件，用于基于由所述像素开关提供的电位引起的电位差来控制所述驱动晶体管; 以及复位开关，用于基于从与所述多个像素电路中的对应的一个像素电路对应的扫描信号之前的像素扫描线之一提供的扫描信号，将电容器元件的一端的电位设定为预定状态。

5. 发明申请

US20090309865A1 Image Display Device 有权
标题翻译：图像显示设备
公开(公告)号：US20090309865A1
公开(公告)日：2009-12-17
申请号：US12480804
申请日：2009-06-09
申请人： Tohru Kohno , Takahide Kuranaga , Hiroshi Kageyama , Hajime Akimoto
发明人： Tohru Kohno , Takahide Kuranaga , Hiroshi Kageyama , Hajime Akimoto
IPC分类号： G06F3/038 , G09G3/32
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2310/061 , G09G2320/0233 , G09G2320/043
摘要： During a first period of a set period, a reset switch element of each pixel is turned on to converge a voltage at a control electrode of a TFT to a predetermined voltage, and a step signal having a first voltage level is supplied from a step signal generation circuit. During a second period of the set period, the reset switch element is turned off, and a step signal having a second voltage level is supplied from the step signal generation circuit, whereby a voltage exceeding a second power supply voltage or a voltage exceeding a voltage range supplied from a signal driver section is input as a characteristic value set voltage to the control electrode. Accordingly, even when a relationship between a gate voltage and a drain current of the thin film transistor exhibits a hysteresis characteristic, uniform display can be achieved.
摘要翻译：在设定周期的第一时段期间，每个像素的复位开关元件导通，以将TFT的控制电极处的电压收敛到预定电压，并且从步进信号提供具有第一电压电平的阶跃信号一代电路。在设定期间的第二期间，关闭复位开关元件，从步进信号生成电路提供具有第二电压电平的阶跃信号，由此超过第二电源电压或超过电压的电压从信号驱动器部提供的范围作为特性值设定电压被输入到控制电极。因此，即使当薄膜晶体管的栅极电压和漏极电流之间的关系呈现滞后特性时，也能实现均匀的显示。

6. 发明申请

US20100156966A1 IMAGE DISPLAY DEVICE 审中-公开
标题翻译：图像显示设备
公开(公告)号：US20100156966A1
公开(公告)日：2010-06-24
申请号：US12637826
申请日：2009-12-15
申请人： Hiroshi KAGEYAMA , Tohru Kohno , Takahide Kuranaga , Hajime Akimoto
发明人： Hiroshi KAGEYAMA , Tohru Kohno , Takahide Kuranaga , Hajime Akimoto
IPC分类号： G09G5/10
CPC分类号： G09G3/3233 , G09G3/2014 , G09G3/3266 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2320/0626
摘要： An image display device includes a first drive mode and a second drive mode. When N indicates an integer equal to or larger than 2(N≧2), a first to N-th frames are N successive frames, and j indicates an integer equal to or larger than 1. During a write period for a k-th (1≦k≦N) frame in the first drive mode, a scanning circuit sequentially selects a (k+N(j−1))-th display line, and a drive circuit supplies analog video voltages for the (k+N (j−1))-th display line to a plurality of signal lines. During a write period for all frames in the second drive mode, the scanning circuit sequentially selects all display lines, and the drive circuit supplies the analog video voltages for all the display lines to the plurality of signal lines.
摘要翻译：图像显示装置包括第一驱动模式和第二驱动模式。当N表示等于或大于2（N≥2）的整数时，第一至第N帧为N个连续帧，j表示等于或大于1的整数。在第k个（k + N（j-1））个显示行，驱动电路为第（k + N（j-1））个显示行提供模拟视频电压， j-1）） - 显示线到多条信号线。在第二驱动模式下的所有帧的写周期期间，扫描电路依次选择所有显示行，并且驱动电路将所有显示行的模拟视频电压提供给多条信号线。

7. 发明授权

US09135858B2 Image display device 有权
标题翻译：图像显示装置
公开(公告)号：US09135858B2
公开(公告)日：2015-09-15
申请号：US12699106
申请日：2010-02-03
申请人： Takahide Kuranaga , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
发明人： Takahide Kuranaga , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
IPC分类号： G06F3/038 , G09G3/32 , H01L27/32
CPC分类号： G09G3/325 , G09G2300/0852 , G09G2300/0861 , G09G2320/045 , G09G2330/045 , H01L27/3244
摘要： Provided is an image display device, which includes: a display area including a plurality of pixels each of which includes a self light-emitting element; and a plurality of signal lines for inputting an image voltage to each of the plurality of pixels, in which: each of the plurality of pixels includes a field-effect transistor for driving the self light-emitting element based on the image voltage which is input through each of the plurality of signal lines to each of the plurality of pixels; the display area is divided into at least two regions including a first region and a second region; and a (channel width-to-channel length) ratio of the field-effect transistor in the first region is smaller than the ratio of any field-effect transistor in the second region.
摘要翻译：提供了一种图像显示装置，其包括：包括多个像素的显示区域，每个像素包括自发光元件; 以及多个用于将图像电压输入到多个像素中的多个信号线，其中：所述多个像素中的每一个包括用于基于所输入的图像电压驱动所述自发光元件的场效应晶体管通过所述多个信号线中的每一个到所述多个像素中的每一个; 显示区域被分成包括第一区域和第二区域的至少两个区域; 并且第一区域中的场效应晶体管的（沟道宽度 - 沟道长度）比小于第二区域中的任何场效应晶体管的比率。

8. 发明授权

US08749460B2 Image display device having a reset switch for setting a potential of a capacitor to a predetermined reference state 有权
标题翻译：图像显示装置具有用于将电容器的电位设定为预定基准状态的复位开关
公开(公告)号：US08749460B2
公开(公告)日：2014-06-10
申请号：US12547613
申请日：2009-08-26
申请人： Hajime Akimoto , Hiroshi Kageyama , Tohru Kohno
发明人： Hajime Akimoto , Hiroshi Kageyama , Tohru Kohno
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G2310/0262 , G09G2320/045
摘要： Provided is an image display device including: a plurality of pixel scanning lines; a plurality of signal lines; and a plurality of pixel circuits corresponding to intersections between the pixel scanning lines and the signal lines. Each of the pixel circuits includes: a driver transistor; a light emitting element for emitting light based on the current supplied from the driver transistor; a pixel switch for generating a potential based on an image signal and a scanning signal; a capacitor element for controlling the driver transistor based on a potential difference caused by the potential supplied from the pixel switch; and a reset switch for setting a potential at an end of the capacitor element to a predetermined state based on a scanning signal supplied from one of the pixel scanning lines preceding the scanning signal which corresponds to the corresponding one of the plurality of pixel circuits.
摘要翻译：提供一种图像显示装置，包括：多个像素扫描线; 多条信号线; 以及对应于像素扫描线和信号线之间的交点的多个像素电路。每个像素电路包括：驱动晶体管; 基于从驱动晶体管提供的电流发光的发光元件; 用于基于图像信号和扫描信号产生电位的像素开关; 电容器元件，用于基于由所述像素开关提供的电位引起的电位差来控制所述驱动晶体管; 以及复位开关，用于基于从与所述多个像素电路中的对应的一个像素电路对应的扫描信号之前的像素扫描线之一提供的扫描信号，将电容器元件的一端的电位设定为预定状态。

9. 发明申请

US20100201675A1 IMAGE DISPLAY DEVICE 有权
标题翻译：图像显示设备
公开(公告)号：US20100201675A1
公开(公告)日：2010-08-12
申请号：US12699106
申请日：2010-02-03
申请人： Takahide KURANAGA , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
发明人： Takahide KURANAGA , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
IPC分类号： G06F3/038
CPC分类号： G09G3/325 , G09G2300/0852 , G09G2300/0861 , G09G2320/045 , G09G2330/045 , H01L27/3244
摘要： Provided is an image display device, which includes: a display area including a plurality of pixels each of which includes a self light-emitting element; and a plurality of signal lines for inputting an image voltage to each of the plurality of pixels, in which: each of the plurality of pixels includes a field-effect transistor for driving the self light-emitting element based on the image voltage which is input through each of the plurality of signal lines to each of the plurality of pixels; the display area is divided into at least two regions including a first region and a second region; and a (channel width-to-channel length) ratio of the field-effect transistor in the first region is smaller than the ratio of any field-effect transistor in the second region.
摘要翻译：提供了一种图像显示装置，其包括：包括多个像素的显示区域，每个像素包括自发光元件; 以及多个用于将图像电压输入到多个像素中的多个信号线，其中：所述多个像素中的每一个包括用于基于所输入的图像电压驱动所述自发光元件的场效应晶体管通过所述多个信号线中的每一个到所述多个像素中的每一个; 显示区域被分成包括第一区域和第二区域的至少两个区域; 并且第一区域中的场效应晶体管的（沟道宽度 - 沟道长度）比小于第二区域中的任何场效应晶体管的比率。

10. 发明申请

US20090146928A1 Organic Electroluminescence Display Device 审中-公开
标题翻译：有机电致发光显示装置
公开(公告)号：US20090146928A1
公开(公告)日：2009-06-11
申请号：US12331536
申请日：2008-12-10
申请人： Mitsuhide Miyamoto , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
发明人： Mitsuhide Miyamoto , Tohru Kohno , Hajime Akimoto , Hiroshi Kageyama
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0262 , G09G2310/066 , G09G2320/043 , G09G2320/045
摘要： Before a reset operation in which a threshold voltage Vth of an organic light emitting diode (OLED) driving thin film transistor (TFT) is compensated is performed by a first reset TFT switch, a second reset TFT switch is turned on to apply a reset reference potential to a gate of the OLED driving TFT. Accordingly, an operation point of the OLED driving TFT can be stably set even when a power supply is low. In the reset operation, it is unnecessary to close a lighting TFT switch and cause an OLED element to emit light, whereby constant can be improved.
摘要翻译：在通过第一复位TFT开关执行驱动薄膜晶体管（TFT）的有机发光二极管（OLED）的阈值电压Vth被补偿的复位操作之前，第二复位TFT开关导通以施加复位基准 OLED驱动TFT的栅极的潜力。因此，即使电源低，OLED驱动TFT的操作点也能够稳定地设定。在复位操作中，不需要关闭点亮TFT开关并使OLED元件发光，从而可以提高常数。

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