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21. 发明授权

US08610646B2 Organic electroluminescence display device 有权
公开(公告)号：US08610646B2
公开(公告)日：2013-12-17
申请号：US12318852
申请日：2009-01-09
申请人： Tohru Kohno , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
发明人： Tohru Kohno , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0814 , G09G2320/0295 , G09G2320/041 , G09G2320/045 , G09G2320/046
摘要： An organic electroluminescence display device is provided having a display section including a plurality of pixels arranged in a matrix; and a detection section for detecting a luminance characteristic of an OLED element in each of the pixels. The detection section includes a first path for allowing a detected characteristic value to pass therethrough and a second path for attenuating the detected characteristic value. A first switch is provided for the first path whereas a second switch is provided for the second path, the second switch being opened when the first switch is closed. The detected characteristic value having passed through any one of the first path and the second path is input to a same analog-to-digital converter to be converted into a digital quantity.

22. 发明授权

US08514153B2 Imaging device and method of correction pixel deterioration thereof 有权
公开(公告)号：US08514153B2
公开(公告)日：2013-08-20
申请号：US12219202
申请日：2008-07-17
申请人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
发明人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , G09G2320/0233 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： In a display mode, a signal driving circuit (DAC) transmits image signals to the pixels selected by a scanning circuit for display and first switches of switch units. Then, a power supply circuit supplies a current corresponding to the transmitted signal to the pixels. Then, organic EL elements provided in the pixels are driven to emit light, thereby displaying an image. In order to correct the deterioration of the organic EL elements, first, a constant current flows from a current source to the organic EL elements of the pixels selected by a scanning circuit for detection and second switches and a voltage corresponding to the constant current applied to the organic EL element is detected. The detected voltage is input to an AD converter through a buffer amplifier, and the AD converter converts the voltage into a digital value, and transmits the digital value to a signal correction control unit. When the organic EL element deteriorates, the detected digital value varies. Therefore, the signal correction control unit corrects the signal from the signal driving circuit, thereby correcting the deterioration of the organic EL element.

23. 发明授权

US08330755B2 Image display device and driving method for same for collective write in 有权
标题翻译：图像显示装置和驱动方法相同，用于集体写入
公开(公告)号：US08330755B2
公开(公告)日：2012-12-11
申请号：US12292801
申请日：2008-11-26
申请人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
发明人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
IPC分类号： G09G3/20 , G06G5/00
CPC分类号： G09G3/3225 , G09G2300/0842 , G09G2300/089 , G09G2320/043
摘要： An image display with high brightness where a long time can be secured for light emission of self-luminous elements can be implemented using only line memories.The period for the writing in of a display voltage (period for writing in of data) continues for a number of lines (three lines), and the reset pulse becomes of a “high” state. Subsequently, operation for three lines is carried out collectively during a triangular wave period (period for writing in of a triangular wave voltage), and only the light emission controlling pulse becomes of a “high” state. During the period for the writing in of a triangular wave voltage, the writing in of a triangular wave voltage from the second time onward is rewriting of a triangular wave voltage, and thus, the period for rewriting the display voltage (dotted line portion) becomes unnecessary, and a longer period for light emission, where the light emission controlling pulse becomes of a “high” state, can be secured.
摘要翻译：可以仅使用行存储器来实现具有高亮度的长时间可以确保自发光元件的发光的图像显示器。用于写入显示电压的周期（数据写入周期）持续多行（三行），并且复位脉冲变为高状态。随后，在三角波周期（写入三角波电压的周期）中集中进行三线的操作，并且只有发光控制脉冲变为高状态。在写入三角波电压的期间中，从第二次开始写入三角波电压是三角波电压的重写，因此，重写显示电压（虚线部分）的周期成为可以确保发光控制脉冲变为高状态的发光的不必要的和更长的周期。

24. 发明授权

US08035663B2 Image display device 有权
标题翻译：图像显示装置
公开(公告)号：US08035663B2
公开(公告)日：2011-10-11
申请号：US12123493
申请日：2008-05-20
申请人： Masato Ishii , Naruhiko Kasai , Mitsuhide Miyamoto , Tohru Kohno , Hajime Akimoto
发明人： Masato Ishii , Naruhiko Kasai , Mitsuhide Miyamoto , Tohru Kohno , Hajime Akimoto
IPC分类号： G09G5/10
CPC分类号： G09G3/3233 , G09G2310/06 , G09G2320/0271 , G09G2320/0285 , G09G2320/0295 , G09G2320/043
摘要： With the use of pixel control parts for controlling display elements in response to display data using a display-use voltage source and display control parts for supplying the display data to the pixel control parts, the display data is displayed on a display part. Further, the display data is corrected by detecting states of the display elements. A voltage of the display-use voltage source is preliminarily set to a fixed higher voltage, and a gray scale of the display data is elevated in response to a degradation state of the display element. Accordingly, it is possible to perform a display while maintaining the maximum brightness even when the display element is degraded. Further, the contrast can be maintained by correcting the gray scales of the display data by performing only the digital calculation.
摘要翻译：通过使用用于使用显示用电压源和显示控制部件响应于显示数据来控制显示元件的像素控制部件，用于将显示数据提供给像素控制部件，显示数据被显示在显示部分上。此外，通过检测显示元件的状态来校正显示数据。显示用电压源的电压被预先设定为固定的较高电压，并且响应于显示元件的劣化状态而升高显示数据的灰度。因此，即使显示元件劣化，也可以在保持最大亮度的同时进行显示。此外，可以通过仅执行数字计算来校正显示数据的灰度级来维持对比度。

25. 发明申请

US20090244043A1 Image Display Device 有权
标题翻译：图像显示设备
公开(公告)号：US20090244043A1
公开(公告)日：2009-10-01
申请号：US12353281
申请日：2009-01-14
申请人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
发明人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
IPC分类号： G09G5/00
CPC分类号： G09G3/3233 , G09G3/3426 , G09G2300/0842 , G09G2310/0275 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/041 , G09G2320/043 , G09G2330/028
摘要： To provide an image display device having a circuit for solving burning phenomenon without increasing the size of the circuit. An image display device is provided having a display unit formed using display devices, a signal line for inputting a display signal voltage to the display unit, and a display control unit for controlling the display signal voltage, the image display device comprising a detection power source, a switch for causing a current of the detection power source to flow to the display device, a detection circuit for detecting the current, and a detection information storage circuit for storing information, and compensating the display signal voltage, using the information, wherein using a first reference voltage, and current detection is carried out, the detection circuit feeds back the current detected to set a second reference voltage different from the first reference voltage, and carries out current detection.
摘要翻译：提供具有用于解决燃烧现象的电路的图像显示装置，而不增加电路的尺寸。提供一种图像显示装置，具有使用显示装置形成的显示单元，用于向显示单元输入显示信号电压的信号线以及用于控制显示信号电压的显示控制单元，该图像显示装置包括检测电源，用于使检测电源的电流流向显示装置的开关，用于检测电流的检测电路，以及用于存储信息的检测信息存储电路，以及使用该信息补偿显示信号电压，其中使用执行第一参考电压和电流检测，检测电路反馈检测到的电流以设置不同于第一参考电压的第二参考电压，并执行电流检测。

26. 发明申请

US20090243973A1 DISPLAY DEVICE 审中-公开
标题翻译：显示设备
公开(公告)号：US20090243973A1
公开(公告)日：2009-10-01
申请号：US12416249
申请日：2009-04-01
申请人： Masato Ishii , Naruhiko Kasai , Tohru Kohno , Hajime Akimoto
发明人： Masato Ishii , Naruhiko Kasai , Tohru Kohno , Hajime Akimoto
IPC分类号： G09G3/20
CPC分类号： G09G3/3275 , G09G2310/0218 , G09G2310/04 , G09G2320/0233 , G09G2330/028
摘要： Provided is a display device including: a display section including a plurality of pixels which emit light in an amount varied depending on an amount of current; signal lines used to input a display signal voltage to the pixels; a switch circuit which switches between the signal lines to output signals corresponding to pixel states of the pixels, the pixel states being obtained through a supply of a power source to the pixels; and an A/D converter which sequentially detects the signals corresponding to the pixel states of the pixels along a horizontal line of the display section, in which the A/D converter includes a circuit for changing a reference voltage of the A/D converter, and is structured so as to perform block-by-block detection of signals corresponding to pixel states of pixels in each of a plurality of blocks into which the pixels in the horizontal line are divided.
摘要翻译：提供一种显示装置，包括：显示部，包括发射量根据电流量而变化的光的多个像素; 用于向像素输入显示信号电压的信号线; 开关电路，其在所述信号线之间切换以输出与所述像素的像素状态相对应的信号，所述像素状态通过向所述像素供给电源而获得; 以及A / D转换器，其依次检测与显示部分的水平线相对应的像素的像素状态的信号，其中A / D转换器包括用于改变A / D转换器的参考电压的电路，并且被构造成对与划分水平线中的像素的多个块中的每个块中的像素的像素状态相对应的信号进行逐块检测。

27. 发明申请

US20090027313A1 Imaging device 有权
标题翻译：成像设备
公开(公告)号：US20090027313A1
公开(公告)日：2009-01-29
申请号：US12216580
申请日：2008-07-08
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 , G09G2310/0262 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/041 , G09G2320/048 , G09G2320/0693
摘要： To determine a deterioration and maintain a high-quality image without unevenness of brightness by performing a precise correction, a detection scanning line for selecting a pixel which detects a deterioration of a pixel, a detection line for informing the outside of the display area of the property of a pixel selected for detecting the deterioration, a deterioration determination means for determining a deterioration amount based on a voltage corresponding to a current detected by the detection line, and a deterioration correction means (computation circuit) for reflecting the determination result of the deterioration determination means in image data supplied to the pixel, are provided.
摘要翻译：为了通过执行精确校正来确定劣化并且保持没有亮度不均匀的高质量图像，用于选择检测像素劣化的像素的检测扫描线，用于通知显示区域的外部的检测线选择用于检测劣化的像素的特性;劣化判定装置，用于根据与由检测线检测到的电流相对应的电压来确定劣化量;劣化校正装置（计算电路），用于反映恶化的确定结果提供了提供给像素的图像数据中的确定装置。

28. 发明申请

US20080100543A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20080100543A1
公开(公告)日：2008-05-01
申请号：US11871469
申请日：2007-10-12
申请人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
发明人： Naruhiko Kasai , Masato Ishii , Tohru Kohno , Hajime Akimoto
IPC分类号： G09G3/30
CPC分类号： G09G3/3291 , G09G3/3258 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0259 , G09G2310/066 , G09G2320/041 , G09G2320/045 , G09G2320/046 , G09G2320/048
摘要： A display device includes a plurality of pixels, each of which has a drive transistor, an organic EL element and a writing capacitor, in which the drive transistor controls a luminous time period of the organic EL element by a writing signal voltage and a sweep signal so that the writing signal voltage is written into the writing capacitor independent from a characteristic variation caused by a deterioration due to the temperature and time lapse of using the organic EL element, thereby making a luminous time period long when the deterioration occurs with increase of an internal resistance of the organic EL element, and compensating a luminance degradation caused by the deterioration to solve a burn-in state of fixed pattern.
摘要翻译：显示装置包括多个像素，每个像素具有驱动晶体管，有机EL元件和写入电容器，其中驱动晶体管通过写入信号电压和扫描信号控制有机EL元件的发光时间周期使得写入信号电压被独立于由于使用有机EL元件的温度和时间流逝导致的劣化引起的特性变化而被写入写入电容器中，从而当发生劣化时使发光时间段长有机EL元件的内部电阻，并且补偿由劣化引起的亮度劣化以解决固定图案的老化状态。

29. 发明授权

US08643574B2 Imaging device 有权
标题翻译：成像设备
公开(公告)号：US08643574B2
公开(公告)日：2014-02-04
申请号：US12216580
申请日：2008-07-08
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 , G09G2310/0262 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/041 , G09G2320/048 , G09G2320/0693
摘要： To determine a deterioration and maintain a high-quality image without unevenness of brightness by performing a precise correction, a detection scanning line for selecting a pixel which detects a deterioration of a pixel, a detection line for informing the outside of the display area of the property of a pixel selected for detecting the deterioration, a deterioration determination means for determining a deterioration amount based on a voltage corresponding to a current detected by the detection line, and a deterioration correction means (computation circuit) for reflecting the determination result of the deterioration determination means in image data supplied to the pixel, are provided.
摘要翻译：为了通过执行精确校正来确定劣化并且保持没有亮度不均匀的高质量图像，用于选择检测像素劣化的像素的检测扫描线，用于通知显示区域的外部的检测线选择用于检测劣化的像素的特性;劣化判定装置，用于根据与由检测线检测到的电流相对应的电压来确定劣化量;劣化校正装置（计算电路），用于反映恶化的确定结果提供了提供给像素的图像数据中的确定装置。

30. 发明授权

US08605062B2 Display device 有权
标题翻译：显示设备
公开(公告)号：US08605062B2
公开(公告)日：2013-12-10
申请号：US12073219
申请日：2008-03-03
申请人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
发明人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto , Naruhiko Kasai , Masato Ishii
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0218 , G09G2320/0252 , G09G2320/0285 , G09G2320/029 , G09G2320/043
摘要： To shorten the measuring time of the characteristics of light emission of OLED elements for feedback to image data for image display in an organic EL display device. Pixels that emit red lights, pixels that emit green lights, and pixels that emit blue lights are arranged on a screen in a matrix manner. A detection system is provided on the upper side of the screen. A detection line extending from the detection system is coupled to the respective pixels through analog switches and digital switches controlled by switch controlling lines. A detection scanning circuit is provided on the right side of the screen. Detection switch controlling lines extend from the detection scanning circuit. By appropriately selecting the analog switches, the switch controlling lines, and the detection switch controlling lines, the voltage-current characteristics of plural pixels are measured at the same time.
摘要翻译：缩短OLED元件的发光特性的测量时间，以反馈到有机EL显示装置中用于图像显示的图像数据。发出红灯的像素，发出绿色光的像素和发出蓝光的像素以矩阵方式排列在屏幕上。在屏幕的上侧设置检测系统。从检测系统延伸的检测线通过由开关控制线控制的模拟开关和数字开关耦合到各个像素。检测扫描电路设置在屏幕的右侧。检测开关控制线从检测扫描电路延伸。通过适当选择模拟开关，开关控制线和检测开关控制线，同时测量多个像素的电压 - 电流特性。

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