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1. 发明授权

US07545355B2 Image display apparatus and driving method thereof 有权
标题翻译：图像显示装置及其驱动方法
公开(公告)号：US07545355B2
公开(公告)日：2009-06-09
申请号：US09834919
申请日：2001-04-16
申请人： Hajime Akimoto , Toshio Miyazawa
发明人： Hajime Akimoto , Toshio Miyazawa
IPC分类号： G09G3/36
CPC分类号： G09G5/395 , G09G3/3648 , G09G2300/0408 , G09G2330/021
摘要： In an image display apparatus having a memory function of image data, the power consumption is reduced. This effect can be attained by providing each DRAM memory cell with an amplifying FET.
摘要翻译：在具有图像数据的存储功能的图像显示装置中，功耗降低。通过为每个DRAM存储单元提供放大FET可以实现该效果。

2. 发明授权

US07176868B2 Liquid crystal display apparatus and liquid crystal display driving method 有权
标题翻译：液晶显示装置和液晶显示驱动方法
公开(公告)号：US07176868B2
公开(公告)日：2007-02-13
申请号：US10874372
申请日：2004-06-24
申请人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
发明人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/2014 , G09G3/3648 , G09G3/3655 , G09G2310/0259
摘要： A display apparatus having a display pixel unit including a plurality of pixels arranged in a matrix, a first driving circuit for outputting a control signal to the pixels to turn the pixels ON, the control signal depending on gray-scale information of display data, and a second driving circuit outputting a ramp waveform signal for turning the pixels on a line ON in accordance with a time-period of a scanning time-period and a scanning signal of turning the pixels on the line OFF. The ramp waveform signal includes a first ramp waveform signal and a second ramp waveform signal, and the second driving circuit outputs alternately the first and second ramp waveform signals to the pixels in accordance with the time-period of the scanning time-period.
摘要翻译：一种具有显示像素单元的显示装置，所述显示像素单元包括以矩阵形式排列的多个像素，第一驱动电路，用于向所述像素输出控制信号以将所述像素导通，所述控制信号取决于显示数据的灰度信息;以及输出斜坡波形信号的第二驱动电路，用于根据扫描时间段的时间段和将线路上的像素关闭的扫描信号将线路上的像素转动。斜坡波形信号包括第一斜坡波形信号和第二斜坡波形信号，并且第二驱动电路根据扫描时间段的时间周期将第一和第二斜坡波形信号交替地输出到像素。

3. 发明授权

US06856308B2 Image display apparatus 失效
标题翻译：图像显示装置
公开(公告)号：US06856308B2
公开(公告)日：2005-02-15
申请号：US09888644
申请日：2001-06-26
申请人： Hajime Akimoto , Yoshiro Mikami , Toshio Miyazawa
发明人： Hajime Akimoto , Yoshiro Mikami , Toshio Miyazawa
IPC分类号： G02F1/1335 , G02F1/133 , G02F1/13357 , G09G3/20 , G09G3/30 , G09G3/32 , G09G3/34 , G09G3/36
CPC分类号： G09G3/3648 , G09G3/20 , G09G3/32 , G09G3/3406 , G09G3/3677 , G09G3/3688 , G09G2300/0842 , G09G2310/0205 , G09G2310/027 , G09G2310/0297 , G09G2320/062 , G09G2320/0633 , G09G2330/021 , G09G2340/0407 , G09G2340/0428
摘要： An image display apparatus having a display unit composed of a plurality of pixels and a control unit for controlling the display unit. The image display apparatus further includes a DA converter for converting digital display data into an analog image signal, wherein the DA converter is composed of a first DA converter and a second DA converter, the power consumption when the first DA converter is operated being smaller than that when the second DA converter is operated. Either of the first DA converter or the second DA converter are operated according to an instruction from the control unit, and the converted analog image signal is outputted to the display unit. The display unit changes the number of the independent display pixels of said display unit according to the instruction from the control unit and displays an image according to the analog image signal.
摘要翻译：一种具有由多个像素构成的显示单元和用于控制显示单元的控制单元的图像显示装置。所述图像显示装置还包括：DA转换器，用于将数字显示数据转换为模拟图像信号，其中，所述DA转换器由第一DA转换器和第二DA转换器组成，当所述第一DA转换器操作时的功耗小于当第二个DA转换器运行时。根据来自控制单元的指令来操作第一DA转换器或第二DA转换器，并将转换的模拟图像信号输出到显示单元。显示单元根据来自控制单元的指令改变所述显示单元的独立显示像素的数量，并根据模拟图像信号显示图像。

4. 发明授权

US06756956B2 Liquid crystal display apparatus and liquid crystal display driving method 有权
标题翻译：液晶显示装置和液晶显示驱动方法
公开(公告)号：US06756956B2
公开(公告)日：2004-06-29
申请号：US10384626
申请日：2003-03-11
申请人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
发明人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/2014 , G09G3/3648 , G09G3/3655 , G09G2310/0259
摘要： An active matrix type liquid crystal display apparatus includes a display pixel unit including a plurality of pixels arranged in a matrix; a data signal driving circuit for outputting a gray-scale voltage control signal to the pixels and having a pulse width in accordance with gray-scale information of display data, a scan signal driving circuit for outputting at least one of an active voltage and inactive voltage to the pixels, and a gray-scale voltage selecting circuit for outputting a gray-scale voltage to the pixels. The gray-scale voltage in increased and decreased in accordance with time. Each of the pixels includes a liquid crystal cell and a switching element having a drain terminal, a common terminal and a gate terminal. The gate terminal is connected to the data signal driving circuit through a gate electrode, the common terminal is connected to the scan signal driving circuit through a common electrode, and the drain terminal is connected to the gray-scale voltage selecting circuit through a drain electrode.
摘要翻译：有源矩阵型液晶显示装置包括：显示像素单元，包括以矩阵排列的多个像素; 数据信号驱动电路，用于向像素输出灰度级电压控制信号，并具有与显示数据的灰度信息相对应的脉冲宽度;扫描信号驱动电路，用于输出有源电压和无效电压和用于向像素输出灰度级电压的灰度级电压选择电路。灰度电压按照时间增减。每个像素包括液晶单元和具有漏极端子，公共端子和栅极端子的开关元件。栅极端子通过栅电极连接到数据信号驱动电路，公共端通过公共电极连接到扫描信号驱动电路，漏极端子通过漏电极连接到灰度电压选择电路。

5. 发明授权

US06567062B1 Liquid crystal display apparatus and liquid crystal display driving method 有权
标题翻译：液晶显示装置和液晶显示驱动方法
公开(公告)号：US06567062B1
公开(公告)日：2003-05-20
申请号：US09654388
申请日：2000-09-01
申请人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
发明人： Yasuyuki Kudo , Tsutomu Furuhashi , Toshio Miyazawa , Yoshiro Mikami , Hajime Akimoto , Norio Manba
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/2014 , G09G3/3648 , G09G3/3655 , G09G2310/0259
摘要： An active matrix type liquid crystal display apparatus includes: a plurality of common electrodes and a plurality of gate electrodes, both of which are intersected respectively, and a plurality of drain electrodes in parallel with the common electrodes, formed on one of inner surfaces of two substrates oppositely arranged through a liquid crystal layer; a display pixel unit having a plurality of pixels, each of which includes three-terminal switching element and a liquid crystal cell at each of intersection points of the plurality of common electrodes and the plurality of gate electrodes; and a peripheral circuit for applying a predetermined voltage to each of the common electrodes, the gate electrode and the drain electrode, wherein a first terminal of the switching element is connected to the drain electrode, a second terminal of the switching element is connected to the liquid crystal cell, an opposite side of which is connected to the common electrode, a third terminal of the switching element is connected to the gate electrode.
摘要翻译：有源矩阵型液晶显示装置包括：分别与多个公共电极和多个栅电极相交的多个栅电极和与公共电极平行的多个漏极，形成在两个的内表面之一上通过液晶层相对布置的基板; 具有多个像素的显示像素单元，每个像素包括三端开关元件和在所述多个公共电极和所述多个栅电极的每个相交点处的液晶单元; 以及用于向每个公共电极，栅电极和漏电极施加预定电压的外围电路，其中开关元件的第一端子连接到漏电极，开关元件的第二端子连接到液晶单元，其相对侧连接到公共电极，开关元件的第三端子连接到栅电极。

6. 发明授权

US08743155B2 Circuit and driving method for correcting tone output of a pixel 有权
标题翻译：用于校正像素的色调输出的电路和驱动方法
公开(公告)号：US08743155B2
公开(公告)日：2014-06-03
申请号：US12849136
申请日：2010-08-03
申请人： Masato Ishii , Naruhiko Kasai , Hajime Akimoto
发明人： Masato Ishii , Naruhiko Kasai , Hajime Akimoto
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3208 , G09G3/2092 , G09G2310/0275 , G09G2320/0233 , G09G2320/0242 , G09G2320/0271 , G09G2320/0276 , G09G2320/0285 , G09G2320/0295 , G09G2320/043 , G09G2320/0693 , G09G2360/16
摘要： A display device capable of correcting display of deteriorated pixels without causing a nonconstant tonality or improper color balance is provided. The display device includes a display section with plural pixels; signal lines; a data generation circuit; a D/A converter for sequentially converting a tone data to an analog voltage and outputting the analog voltage to the signal lines; a switch circuit for outputting a signal corresponding to the pixel state by switching the signal lines; an A/D converter for sequentially detecting the signal; and a detection circuit for estimating the state of the pixel from the signal. The D/A converter includes an output range setting means for setting an allowed output range of the analog voltage. The display device includes an output correction circuit that controls the output range setting means in accordance with the state of the pixel detected by the detection circuit.
摘要翻译：提供能够校正恶化像素的显示而不引起不均匀色调或不正确色彩平衡的显示装置。显示装置包括具有多个像素的显示部分; 信号线数据生成电路; D / A转换器，用于将音调数据顺序地转换为模拟电压并将模拟电压输出到信号线; 开关电路，用于通过切换信号线来输出与像素状态对应的信号; 用于顺序地检测信号的A / D转换器; 以及检测电路，用于根据该信号估计像素的状态。 D / A转换器包括用于设置模拟电压的允许输出范围的输出范围设置装置。显示装置包括输出校正电路，其根据由检测电路检测的像素的状态来控制输出范围设定装置。

7. 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.

8. 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.

9. 发明授权

US08508562B2 Image display device 有权
公开(公告)号：US08508562B2
公开(公告)日：2013-08-13
申请号：US13330416
申请日：2011-12-19
申请人： Hajime Akimoto , Yoshirou Mikami , Kiyoshige Kinugawa , Shigeyuki Nishitani , Takeo Shiba
发明人： Hajime Akimoto , Yoshirou Mikami , Kiyoshige Kinugawa , Shigeyuki Nishitani , Takeo Shiba
IPC分类号： G09G5/10
CPC分类号： G09G3/32 , G09G3/2014 , G09G3/3208 , G09G3/3233 , G09G3/3258 , G09G3/3283 , G09G3/3291 , G09G5/10 , G09G5/18 , G09G2300/0408 , G09G2300/0417 , G09G2300/0426 , G09G2300/0439 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2300/0876 , G09G2310/027 , G09G2310/062 , G09G2310/065 , G09G2310/066 , G09G2320/0233 , G09G2320/0242 , G09G2320/0257 , G09G2320/0261 , G09G2320/043 , G09G2320/0626
摘要： The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.

10. 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。

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