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71. 发明授权

US08643591B2 Display device and driving method thereof 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US08643591B2
公开(公告)日：2014-02-04
申请号：US13087561
申请日：2011-04-15
申请人： Hajime Kimura , Keisuke Miyagawa
发明人： Hajime Kimura , Keisuke Miyagawa
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/2081 , G09G3/3233 , G09G3/3241 , G09G3/3275 , G09G2300/0417 , G09G2300/0426 , G09G2300/0814 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2320/0233 , G09G2320/043
摘要： In the respect of an electrical characteristic of a transistor, a channel size W/L of a transistor is preferably designed small in order to decrease an effect of a variation in threshold voltage, while the channel size W/L is preferably designed large in order to widen a saturation region as an operation region of the transistor in the respect of characteristic of a light emitting element. Thus, decreasing an effect of a variation in threshold voltage and widening a saturation region in order not to reduce luminance due to a degradation of the light emitting element are in the relation of trade-off. According to the invention, a current capacity of a driving transistor is increased so as to operate in a wide saturation region. A lighting period control circuit is provided in each pixel for changing a lighting period of each pixel separately. Another configuration of the invention includes a plurality of transistors, for example a first driving transistor and a second driving transistor, and a lighting period control circuit for controlling a lighting period of the light emitting element in each pixel.
摘要翻译：在晶体管的电特性方面，晶体管的沟道尺寸W / L优选设计得较小，以便降低阈值电压的变化的影响，而沟道尺寸W / L优选按照大的顺序设计根据发光元件的特性，将饱和区域加宽为晶体管的工作区域。因此，为了不降低由于发光元件的劣化引起的亮度，降低阈值电压变化的影响和加宽饱和区域是折衷关系。根据本发明，驱动晶体管的电流容量增加，以便在宽饱和区域中工作。在每个像素中提供照明周期控制电路，用于分别改变每个像素的发光周期。本发明的另一种结构包括多个晶体管，例如第一驱动晶体管和第二驱动晶体管，以及用于控制每个像素中的发光元件的点亮周期的发光周期控制电路。

72. 发明授权

US07928945B2 Display device and driving method thereof 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US07928945B2
公开(公告)日：2011-04-19
申请号：US10844491
申请日：2004-05-13
申请人： Hajime Kimura , Keisuke Miyagawa
发明人： Hajime Kimura , Keisuke Miyagawa
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/2081 , G09G3/3233 , G09G3/3241 , G09G3/3275 , G09G2300/0417 , G09G2300/0426 , G09G2300/0814 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2320/0233 , G09G2320/043
摘要： In the respect of an electrical characteristic of a transistor, a channel size W/L of a transistor is preferably designed small in order to decrease an effect of a variation in threshold voltage, while the channel size W/L is preferably designed large in order to widen a saturation region as an operation region of the transistor in the respect of characteristic of a light emitting element. Thus, decreasing an effect of a variation in threshold voltage and widening a saturation region in order not to reduce luminance due to a degradation of the light emitting element are in the relation of trade-off. According to the invention, a current capacity of a driving transistor is increased so as to operate in a wide saturation region. A lighting period control circuit is provided in each pixel for changing a lighting period of each pixel separately. Another configuration of the invention includes a plurality of transistors, for example a first driving transistor and a second driving transistor, and a lighting period control circuit for controlling a lighting period of the light emitting element in each pixel.
摘要翻译：在晶体管的电特性方面，晶体管的沟道尺寸W / L优选设计得较小，以便降低阈值电压的变化的影响，而沟道尺寸W / L优选按照大的顺序设计根据发光元件的特性，将饱和区域加宽为晶体管的工作区域。因此，为了不降低由于发光元件的劣化引起的亮度，降低阈值电压变化的影响和加宽饱和区域是折衷关系。根据本发明，驱动晶体管的电流容量增加，以便在宽饱和区域中工作。在每个像素中提供照明周期控制电路，用于分别改变每个像素的发光周期。本发明的另一种结构包括多个晶体管，例如第一驱动晶体管和第二驱动晶体管，以及用于控制每个像素中的发光元件的点亮周期的发光周期控制电路。

73. 发明授权

US07609310B2 Display device having an image pickup function and a two-way communication system 有权
标题翻译：具有摄像功能的显示装置和双向通信系统
公开(公告)号：US07609310B2
公开(公告)日：2009-10-27
申请号：US10866108
申请日：2004-06-14
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： H04N5/335
CPC分类号： H04N7/144 , H04N2007/145
摘要： A two-way communication device having a display device of novel structure and an image pickup device is provided. More particularly, a two-way communication system having a display device and an image pickup device is provided. The display device having an image pickup function includes an image pickup unit and a display panel in which light emitting elements which can transmit visible light at least and be controlled by voltage or current are arranged. A compact and lightweight device can be achieved without using a complicated optical system or an optical system having a long light path, whereby two parties can communicate while catching each other's eyes.
摘要翻译：提供具有新颖结构的显示装置和图像拾取装置的双向通信装置。更具体地，提供了具有显示装置和图像拾取装置的双向通信系统。具有图像拾取功能的显示装置包括图像拾取单元和显示面板，其中布置至少可以透过可见光并通过电压或电流控制的发光元件。可以在不使用具有长光路的复杂的光学系统或光学系统的情况下实现紧凑且轻便的装置，由此双方可以在捕捉彼此的眼睛的同时进行通信。

74. 发明授权

US07508126B2 Display device with specific pixel configuration and manufacturing method thereof 有权
标题翻译：具有特定像素配置的显示装置及其制造方法
公开(公告)号：US07508126B2
公开(公告)日：2009-03-24
申请号：US11007281
申请日：2004-12-09
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： H01J1/62 , H01J63/04
CPC分类号： H01L27/3218 , H01L27/3246
摘要： Element forming regions of the same color are disposed diagonally and a pixel portion has a structure that a region for forming an element are shared by a plurality of pixels. A specific pixel structure of the invention is that element forming regions of a first color, a second color, and a third color are each disposed diagonally and three or more element forming regions are shared by each pixel.
摘要翻译：相同颜色的元件形成区域对角设置，并且像素部分具有用于形成元件的区域被多个像素共享的结构。本发明的具体像素结构是，第一颜色，第二颜色和第三颜色的元素形成区域各自对角地设置，并且每个像素共享三个或更多个元素形成区域。

75. 发明授权

US07466325B2 Semiconductor display device and driving method 有权
标题翻译：半导体显示装置及驱动方法
公开(公告)号：US07466325B2
公开(公告)日：2008-12-16
申请号：US11130963
申请日：2005-05-17
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： G09G5/10
CPC分类号： G09G3/3233 , G09G3/2029 , G09G3/2033 , G09G3/22 , G09G2300/0842 , G09G2320/0261 , G09G2320/0266
摘要： The invention provides a semiconductor display device with less generation of a pseudo contour while the drive frequency of a driver circuit is suppressed. Furthermore, the invention provides a semiconductor display device with less generation of a pseudo contour while the decrease in image quality is suppressed. A semiconductor display device comprises a table storing data for determining a relationship between the gray scale level of a video signal and a subframe period for light emission in the plurality of subframe periods, a controller for changing a video signal in accordance with the data and outputting, and a panel whose pixel gray scale level is controlled in accordance with the outputted video signal. The number and the length of the plural subframe periods for each gray scale level of 2 or more are determined in accordance with a subframe ratio RSF which is calculated in accordance with a sharing ratio Rsh determined by the frame frequency.
摘要翻译：本发明提供了一种在驱动电路的驱动频率被抑制的同时具有较少的伪轮廓产生的半导体显示装置。此外，本发明提供一种在抑制图像质量降低的同时具有较少的伪轮廓生成的半导体显示装置。半导体显示装置包括：表格，存储用于确定视频信号的灰度级与多个子帧周期中的发光的子帧周期之间的关系的数据;控制器，用于根据该数据改变视频信号并输出，以及根据输出的视频信号控制像素灰度级的面板。根据根据由帧频确定的共享比Rsh计算的子帧比RSF，确定2个以上的各个灰度等级的多个子帧周期的数量和长度。

76. 发明授权

US07132842B2 Semiconductor device, driving method and inspection method thereof 有权
公开(公告)号：US07132842B2
公开(公告)日：2006-11-07
申请号：US10740605
申请日：2003-12-22
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： G01R31/28 , G11C7/00
CPC分类号： G09G3/006 , G09G3/20 , G09G2300/0809 , G09G2300/0814 , G09G2310/0267 , G09G2310/0275 , G09G2330/02
摘要： For an inspection of a display device which incorporates a driver circuit around pixels, a start pulse and a clock pulse are required to be inputted as inspection signals. The more complex the driver circuit is, the more complexity the start pulse and the clock pulse tend to have, which will increase the manufacturing cost of inspection signals. In addition, since a clock generator is required, cost of an inspection device is increased. Furthermore, it will lead to a longer inspection time. By setting all the power supplies for the driver circuit at a desired potential, a desired potential is outputted regardless of an input signal.

77. 发明申请

US20060076567A1 Driving method of light emitting device 审中-公开
标题翻译：发光装置的驱动方法
公开(公告)号：US20060076567A1
公开(公告)日：2006-04-13
申请号：US11229852
申请日：2005-09-20
申请人： Keisuke Miyagawa , Ryota Fukumoto
发明人： Keisuke Miyagawa , Ryota Fukumoto
IPC分类号： H01L33/00
CPC分类号： G09G3/3291 , G09G3/2022 , G09G2300/0809 , G09G2300/0842 , G09G2300/0861 , G09G2310/0256 , G09G2310/061 , G09G2320/0233 , G09G2320/0252 , G09G2320/043
摘要： If a potential of a gate electrode of a driving transistor varies after a gray scale signal is inputted into each pixel, a current value of a current supplied to a light emitting element varies so that accurate gray scale display cannot be obtained. In particular, in the case of performing black display, current may flow, which makes clear black display difficult. Accordingly, the invention provides a light emitting device capable of performing accurate gray scale display, and a driving method thereof. According to the invention, a signal for display is inputted plural times within a predetermined timing period, or a writing operation period is lengthened. Consequently, the gate voltage of the transistor is determined after the anode potential of the light emitting element is stabilized, and therefore accurate gray scale display can be performed.
摘要翻译：如果在将灰度信号输入每个像素之后驱动晶体管的栅电极的电位变化，则提供给发光元件的电流的电流值变化，使得不能获得准确的灰度显示。特别地，在执行黑色显示的情况下，电流可能流动，这使得清晰的黑色显示变得困难。因此，本发明提供能够进行精确的灰度显示的发光装置及其驱动方法。根据本发明，用于显示的信号在预定定时周期内被多次输入，或者写入操作期间被延长。因此，在发光元件的阳极电位稳定之后确定晶体管的栅极电压，因此可以执行精确的灰度显示。

78. 发明申请

US20050231449A1 Display device 有权
标题翻译：显示设备
公开(公告)号：US20050231449A1
公开(公告)日：2005-10-20
申请号：US11100898
申请日：2005-04-07
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： G02F1/133 , G09G3/20 , G09G3/30 , G09G3/36 , H01L51/50 , H05B33/08 , H05B33/14
CPC分类号： G09G3/2022 , G09G3/2014 , G09G3/3233 , G09G3/3291 , G09G3/3648 , G09G2300/0842 , G09G2330/021 , G09G2360/16
摘要： A display device where the power consumption of a display panel can be reduced by controlling a display time rate. The display device includes a gray scale control circuit for controlling the display time rate of a pixel of a display means based on an output of a display time rate table that outputs a gray scale control signal for reducing the display time rate of a pixel when the average gray scale of a video signal of one frame obtained by an one frame average gray scale calculator exceeds a certain value. A display time of a pixel is controlled by erasing a video signal written to a pixel of the display means based on an output signal of the display time rate table. When an image with a high average gray scale is displayed, the luminance of the entire screen increases and power consumption increases. However, power consumption can be suppressed to a certain value by decreasing the display time rate when the average gray scale of a video signal of one frame exceeds a certain value.
摘要翻译：可以通过控制显示时间速率来降低显示面板的功耗的显示装置。该显示装置包括：灰度控制电路，用于根据显示时间率表的输出来控制显示装置的显示时间速率，该显示时间速率表输出用于减少像素的显示时间速率的灰度控制信号，由一帧平均灰度计算器获得的一帧视频信号的平均灰度值超过一定值。通过根据显示时间率表的输出信号擦除写入显示装置的像素的视频信号来控制像素的显示时间。当显示具有高平均灰度的图像时，整个屏幕的亮度增加并且功率消耗增加。然而，当一帧的视频信号的平均灰度级超过一定值时，通过减少显示时间速率可以将功耗抑制到一定值。

79. 发明授权

US07817170B2 Display device and method for driving the same 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US07817170B2
公开(公告)日：2010-10-19
申请号：US11658968
申请日：2005-07-25
申请人： Keisuke Miyagawa , Shou Nagao , Hisashi Ohtani
发明人： Keisuke Miyagawa , Shou Nagao , Hisashi Ohtani
IPC分类号： G09G5/10
CPC分类号： G09G3/3258 , G09G3/2029 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2320/0266
摘要： The invention provides a driving method of a semiconductor display device in which generation of a pseudo contour can be suppressed while the operating frequency of a driver circuit is suppressed. Furthermore, the invention provides a driving method of a semiconductor display device in which generation of a pseudo contour can be suppressed while the decrease in image quality is suppressed. In a semiconductor display device including a plurality of pixels, tables each storing data for determining a subframe period for light emission among a plurality of subframe periods are provided for a plurality of arbitrary pixels among the plurality of pixels respectively. The table is stored in a memory.
摘要翻译：本发明提供了一种半导体显示装置的驱动方法，其中抑制了驱动电路的工作频率的伪轮廓的产生。此外，本发明提供一种半导体显示装置的驱动方法，其中可以抑制图像质量的降低而抑制伪轮廓的产生。在包括多个像素的半导体显示装置中，分别为多个像素中的多个任意像素分别设置存储用于确定多个子帧周期中的发光的子帧周期的数据的表。表存储在内存中。

80. 发明授权

US07586324B2 Semiconductor device, driving method and inspection method thereof 有权
标题翻译：半导体装置，驱动方法及其检查方法
公开(公告)号：US07586324B2
公开(公告)日：2009-09-08
申请号：US11589082
申请日：2006-10-30
申请人： Keisuke Miyagawa
发明人： Keisuke Miyagawa
IPC分类号： G01R31/28
CPC分类号： G09G3/006 , G09G3/20 , G09G2300/0809 , G09G2300/0814 , G09G2310/0267 , G09G2310/0275 , G09G2330/02
摘要： For an inspection of a display device which incorporates a driver circuit around pixels, a start pulse and a clock pulse are required to be inputted as inspection signals. The more complex the driver circuit is, the more complexity the start pulse and the clock pulse tend to have, which will increase the manufacturing cost of inspection signals. In addition, since a clock generator is required, cost of an inspection device is increased. Furthermore, it will lead to a longer inspection time. By setting all the power supplies for the driver circuit at a desired potential, a desired potential is outputted regardless of an input signal.
摘要翻译：对于在像素周围包含驱动电路的显示装置的检查，需要输入起始脉冲和时钟脉冲作为检查信号。驱动电路越复杂，启动脉冲和时钟脉冲越复杂，这将增加检测信号的制造成本。此外，由于需要时钟发生器，检查装置的成本增加。此外，这将导致更长的检查时间。通过将驱动器电路的所有电源设置在期望的电位，无论输入信号如何，输出期望的电位。

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