公开(公告)号：US07701420B2

公开(公告)日：2010-04-20

申请号：US11295499

申请日：2005-12-07

申请人： Masahiro Tanaka ,  Toshiyuki Matsuura ,  Hajime Murakami ,  Hajime Akimoto

发明人： Masahiro Tanaka ,  Toshiyuki Matsuura ,  Hajime Murakami ,  Hajime Akimoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0823 ,  G09G2320/0233 ,  G09G2320/043

摘要： The present invention enhances a display quality of a display device as a task. As means for solving such a task, the present invention provides a display device including a light emitting element and a switching element in a pixel, wherein the switching element is provided for supplying a power source to the light emitting element and is constituted of a first switching element and a second switching element. The first switching element and the second switching element are configured to be operated, in response to inputting of data signals into the inside of the pixel, one switching element assumes a positive bias state and another switching element assumes a reverse bias state, and the bias states are alternately changed over between the first switching element and the second switching element in response to time-sequential inputting of the data signals, and the supply of the power source to the light emitting element is performed by way of either one of the first switching element and the second switching element.

摘要翻译： 本发明提高了作为任务的显示装置的显示质量。 作为解决这样的任务的手段，本发明提供了一种在像素中包括发光元件和开关元件的显示装置，其中，所述开关元件用于向所述发光元件供给电源，并且由第一 开关元件和第二开关元件。 第一开关元件和第二开关元件被配置为响应于将数据信号输入到像素的内部而被操作，一个开关元件呈现正偏置状态，另一个开关元件呈现反向偏置状态，并且偏置 响应于数据信号的时序输入，状态在第一开关元件和第二开关元件之间交替地改变，并且通过第一开关中的任一个来执行向发光元件的供应 元件和第二开关元件。

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。

公开(公告)号：US07466299B2

公开(公告)日：2008-12-16

申请号：US10936571

申请日：2004-09-09

申请人： Naruhiko Kasai ,  Takehide Furukawa ,  Hajime Akimoto ,  Mitsuhide Miyamoto

发明人： Naruhiko Kasai ,  Takehide Furukawa ,  Hajime Akimoto ,  Mitsuhide Miyamoto

IPC分类号： G09G3/36

CPC分类号： G09G3/2092 ,  G09G3/3688 ,  G09G5/008 ,  G09G2300/0408 ,  G09G2310/027

摘要： A memory integrated type display device is provided which can simplify the circuit structure and suppress consumption power. The display device has a liquid crystal pixel unit having a plurality of display elements disposed in a matrix shape, a horizontal shift register for applying a voltage to the liquid crystal pixel unit, a digital/analog conversion unit, an amplifier, a scanning line drive unit for selecting scan lines in a vertical direction and a memory for storing display data, the memory being electrically connected between the amplifier and liquid crystal pixel unit.

摘要翻译： 提供一种能够简化电路结构并抑制消耗功率的存储器集成式显示装置。 显示装置具有具有以矩阵形状设置的多个显示元件的液晶像素单元，向液晶像素单元施加电压的水平移位寄存器，数字/模拟转换单元，放大器，扫描线驱动 用于选择垂直方向的扫描线的单元和用于存储显示数据的存储器，所述存储器电连接在放大器和液晶像素单元之间。

公开(公告)号：US20080122763A1

公开(公告)日：2008-05-29

申请号：US12005318

申请日：2007-12-27

申请人： Hajime Akimoto ,  Takahiro Nagano ,  Takeo Shiba

发明人： Hajime Akimoto ,  Takahiro Nagano ,  Takeo Shiba

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2320/0285 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2330/02

摘要： An image display device incorporates a group of pixels of two or more types, each pixel including a light source whose primary wavelength is specific to the type of pixel; a generating device for generating analog pixel signals to be input to the group of pixels from input digital pixel data, wherein the generating device has a converter to convert input digital pixel data into different output digital pixel data appropriate for each type of pixel where the output digital pixel data contains more bits than the input digital pixel data; and an input device for inputting the analog pixel signals to the group of pixels, each pixel including a light emission driver for driving the light source according to the analog pixel signal. An organic EL display device having individual R, G, and B light emission elements enables displaying in desired colors and controllable tones with reduced packaging area for the components of the organic EL display.

摘要翻译： 图像显示装置包含两种或更多种类型的像素组，每个像素包括其主要波长特定于像素类型的光源; 产生装置，用于从输入的数字像素数据产生要输入到像素组的模拟像素信号，其中所述生成装置具有转换器，用于将输入的数字像素数据转换成适合于每种类型像素的不同的输出数字像素数据，其中输出 数字像素数据包含比输入的数字像素数据更多的位; 以及用于将模拟像素信号输入到像素组的输入装置，每个像素包括根据模拟像素信号驱动光源的发光驱动器。 具有单独的R，G和B发光元件的有机EL显示装置能够以有机EL显示器的部件的减少的包装面积显示所需颜色和可控色调。

公开(公告)号：US07286105B2

公开(公告)日：2007-10-23

申请号：US10339436

申请日：2003-01-10

申请人： Hajime Akimoto ,  Kiyoshige Kinugawa

发明人： Hajime Akimoto ,  Kiyoshige Kinugawa

IPC分类号： G09G3/32

CPC分类号： G09G3/2011 ,  G09G3/2014 ,  G09G3/2022 ,  G09G3/2077 ,  G09G3/3233 ,  G09G3/3648 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0259 ,  G09G2310/027 ,  G09G2310/06 ,  G09G2320/0252 ,  G09G2320/043

摘要： The present invention provides an image display capable of performing high-precision multi-gradation display while avoiding problems of a subtle noise and increase in a drive frequency. Display signal data of one frame is constructed by a plurality of sub frames of, for example, four sub frames 1/4 to 4/4. The 1/4 frame is set as an address period of an analog signal, the 2/4 frame is set as an analog gradation display period, the 3/4 frame is set as an address period of a digital signal, and the 4/4 frame is set as a digital gradation light emission period. The image display is constructed in such a manner that, in the analog gradation display period, an OLED device in a pixel emits light of time according to an analog signal voltage stored in a storage capacitor in the pixel by an analog drive signal circuit and, in the digital gradation display period, a binary light emitting operation of light emission and non light emission is performed according to a digital signal voltage stored in the storage capacitor by a digital signal driving circuit.

摘要翻译： 本发明提供能够进行高精度多灰度显示的图像显示器，同时避免微妙噪声和驱动频率增加的问题。 一帧的显示信号数据由多个子帧构成，例如四个子帧1/4至4/4。 将1/4帧设置为模拟信号的寻址周期，将2/4帧设置为模拟灰度显示周期，将3/4帧设置为数字信号的寻址周期，并将4 / 4帧被设置为数字灰度发光周期。 图像显示器被构造成使得在模拟灰度显示周期中，像素中的OLED器件通过模拟驱动信号电路根据存储在像素中的存储电容器中的模拟信号电压来发射时间光， 在数字灰度显示期间，通过数字信号驱动电路根据存储在存储电容器中的数字信号电压进行发光和非发光的二进制发光操作。

公开(公告)号：US20070205999A1

公开(公告)日：2007-09-06

申请号：US11657483

申请日：2007-01-25

申请人： Hajime Akimoto ,  Mitsuhide Miyamoto

发明人： Hajime Akimoto ,  Mitsuhide Miyamoto

IPC分类号： G09G5/00

CPC分类号： G06F3/042 ,  G06F3/0412 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3648 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2360/148

摘要： An image display apparatus for resolving the problem that read out of high-sensitivity optical signals was impossible when there is a strong backlight effect on displays of the related art and particularly liquid crystal displays. The above problem is resolved by an image display apparatus containing an optical signal summing unit for summing the optical signals output from multiple light sensing pixels, and the optical signal reader includes a function for reading out the optical signals summed by the optical signal summing unit.

摘要翻译： 当在现有技术的显示器，特别是液晶显示器上存在强的背光效应时，用于解决读出高灵敏度光信号的问题的图像显示装置是不可能的。 上述问题由包含用于对从多个感光像素输出的光信号相加的光信号求和单元的图像显示装置解决，光信号读取器包括用于读出由光信号求和单元求和的光信号的功能。

公开(公告)号：US20070070056A1

公开(公告)日：2007-03-29

申请号：US11526749

申请日：2006-09-26

申请人： Hideo Sato ,  Shigeyuki Nishitani ,  Takayuki Nakao ,  Naruhiko Kasai ,  Hajime Akimoto

发明人： Hideo Sato ,  Shigeyuki Nishitani ,  Takayuki Nakao ,  Naruhiko Kasai ,  Hajime Akimoto

IPC分类号： G09G5/00

CPC分类号： G09G3/2096 ,  G06F3/0412 ,  G06F3/042 ,  G09G2300/0443 ,  G09G2300/0842 ,  G09G2300/0876 ,  G09G2360/14

摘要： A display device which incorporates a touch panel function therein can reduce the number of elements which constitute a photo sensor circuit and can accurately detect an input coordinate position without requiring a particular coordinate arithmetic circuit. In a display device which includes: a display part on which a plurality of pixels are arranged in a matrix array; and a plurality of photo detection circuits which are arranged in a matrix array in the inside of the display part, each photo detection circuit of the plurality of photo detection circuits includes: a photo sensor which converts an incident light into a optical current corresponding to intensity of the incident light; an integral capacitance which integrates the optical current converted by the photo sensor; and a comparator to which a voltage of the integral capacitance is inputted; and the comparator includes a transistor of an open drain output type with a grounded source.

摘要翻译： 在其中包含触摸面板功能的显示装置可以减少构成光传感器电路的元件的数量，并且可以精确地检测输入坐标位置而不需要特定的坐标运算电路。 一种显示装置，其特征在于，包括：多个像素排列成矩阵的显示部， 以及多个光检测电路，其以矩阵阵列布置在显示部分的内部，多个光检测电路的每个光检测电路包括：光传感器，其将入射光转换成对应于强度的光电流 的事件光; 由光传感器转换的光电流积分的积分电容; 以及输入积分电容的电压的比较器; 并且比较器包括具有接地源的开漏输出型晶体管。

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。

公开(公告)号：US20060181539A1

公开(公告)日：2006-08-17

申请号：US11328306

申请日：2006-01-10

申请人： Hajime Akimoto

发明人： Hajime Akimoto

IPC分类号： G09G5/22

CPC分类号： G09G3/3688 ,  G09G5/39 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2360/126 ,  G09G2360/18

摘要： An image display apparatus with a portion of a display substrate area, around a display section, being small, low in power consumption, and capable of effecting high-definition image display. A built-in memory configuration is provided wherein one unit of analogue image signal is generated on the basis of a memory cell signal selected by not less than two lengths of select metal interconnects form a select circuit, and outputted by not less than two lengths of signal metal interconnects. Memory cells of a built-in memory are disposed in staggered arrangement. Respective pixels of a display section include a pixel switch and a capacitor, and a gate of the pixel switch is connected to a vertical scanning circuit via a gate line.

摘要翻译： 具有显示部分周围的显示基板区域的一部分的图像显示装置小，功耗低，并且能够进行高清晰图像显示。 提供了内置存储器配置，其中基于由不少于两个长度的选择金属互连选择的存储单元信号生成模拟图像信号的一个单元，其形成选择电路，并且通过不少于两个长度的 信号金属互连。 内置存储器的存储单元以交错排列布置。 显示部分的相应像素包括像素开关和电容器，并且像素开关的栅极经由栅极线连接到垂直扫描电路。

公开(公告)号：US20060066533A1

公开(公告)日：2006-03-30

申请号：US11224954

申请日：2005-09-14

申请人： Toshihiro Sato ,  Hajime Akimoto ,  Naruhiko Kasai ,  Naoki Tokuda

发明人： Toshihiro Sato ,  Hajime Akimoto ,  Naruhiko Kasai ,  Naoki Tokuda

IPC分类号： G09G3/30

CPC分类号： G09G3/20 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/16

摘要： A plurality of organic EL elements which are arranged on a display panel lowers the brightness along with a lapse of light emitting time and hence, the power consumption is increased to maintain the brightness. However, the increase of the power consumption shortens a lifetime of the organic EL elements. To overcome this drawback, a power supply circuit which drives the display panel has a function of controlling an electric power supplied to the display panel to a fixed value or less in response to a detection signal from a detection part which detects a cathode current of the organic EL elements.

摘要翻译： 布置在显示面板上的多个有机EL元件随着发光时间的延长而降低亮度，因此增加功耗以保持亮度。 然而，功耗的增加缩短了有机EL元件的寿命。 为了克服这个缺点，驱动显示面板的电源电路具有根据来自检测部分检测到的阴极电流的检测信号，将提供给显示面板的电力控制在一定值以下的功能 有机EL元件。