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    Circuit and driving method for correcting tone output of a pixel
    1.
    发明授权
    Circuit and driving method for correcting tone output of a pixel 有权
    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。

    Image display device and driving method for same for collective write in
    5.
    发明授权
    Image display device and driving method for same for collective write in 有权
    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。

    DISPLAY DEVICE
    6.
    发明申请
    DISPLAY DEVICE 有权
    显示设备

    公开(公告)号：US20120249483A1

    公开(公告)日：2012-10-04

    申请号：US13438043

    申请日：2012-04-03

    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： G06F3/042

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

    摘要： A display device with a touch pad function is provided which reduces the elements required to form a photo sensor while still accurately detecting input coordinate positions. The display device includes a display part on which a plurality of pixels are arranged in a matrix array, a plurality of photo detection circuits which are arranged in a matrix array in the inside of the display part, wherein 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： 提供具有触摸板功能的显示装置，其减少了形成光传感器所需的元件，同时仍然准确地检测输入坐标位置。 显示装置包括：多个像素排列成矩阵的显示部，在显示部的内部排列成矩阵阵列的多个光检测电路，其中，多个像素的各光检测电路 光检测电路包括：光传感器，其将入射光转换成与入射光的强度相对应的光电流，积分电容，其对由光传感器转换的光电流进行积分，并将积分电容的电压 并且比较器包括具有接地源的开漏输出型晶体管。

    Image display device having a set period during which a step signal is supplied at different levels to provide a uniform display
    7.
    发明授权
    Image display device having a set period during which a step signal is supplied at different levels to provide a uniform display 有权
    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。

    DISPLAY DEVICE
    9.
    发明申请
    DISPLAY DEVICE 审中-公开
    显示设备

    公开(公告)号：US20120050252A1

    公开(公告)日：2012-03-01

    申请号：US13207951

    申请日：2011-08-11

    申请人： Hajime Akimoto ,  Masahisa Tsukahara ,  Kenta Kajiyama

    发明人： Hajime Akimoto ,  Masahisa Tsukahara ,  Kenta Kajiyama

    IPC分类号： G09G5/00 ,  G09G3/36

    CPC分类号： G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251

    摘要： An nMOS is used for a drive TFT and a display device is provided without being affected by variations in the threshold voltage of the drive TFT. A display device includes: a field-effect transistor that controls a drive current of a light emitting element; a first switch provided between a source of the field-effect transistor and an anode terminal of the light emitting element; a second switch provided between the source of the field-effect transistor and a signal line; a third switch provided between a drain of the field-effect transistor and a power supply line; a fourth switch provided between the drain and a gate of the field-effect transistor; a capacitor provided between the gate of the field-effect transistor and the anode terminal of the light emitting element; and a fifth switch provided between the anode terminal of the light emitting element and a predetermined voltage supply line.

    摘要翻译： nMOS用于驱动TFT，并且提供显示装置而不受驱动TFT的阈值电压的变化的影响。 显示装置包括：场效应晶体管，其控制发光元件的驱动电流; 设置在所述场效应晶体管的源极和所述发光元件的阳极端子之间的第一开关; 设置在场效应晶体管的源极和信号线之间的第二开关; 设置在场效应晶体管的漏极和电源线之间的第三开关; 设置在场效应晶体管的漏极和栅极之间的第四开关; 设置在场效应晶体管的栅极和发光元件的阳极端子之间的电容器; 以及设置在所述发光元件的阳极端子与预定电压供给线之间的第五开关。

    Image Display Device
    10.
    发明申请
    Image Display Device 审中-公开
    图像显示设备

    公开(公告)号：US20110310137A1

    公开(公告)日：2011-12-22

    申请号：US13163149

    申请日：2011-06-17

    申请人： Kenta Kajiyama ,  Takeshi Izumida ,  Naoki Tokuda ,  Hajime Akimoto

    发明人： Kenta Kajiyama ,  Takeshi Izumida ,  Naoki Tokuda ,  Hajime Akimoto

    IPC分类号： G09G5/10

    CPC分类号： G09G3/3225 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/0233 ,  G09G2320/045

    摘要： The present invention provides an image display device comprising data lines each supplying a data signal, and a plurality of pixel circuits. Each of the pixel circuits includes a light-emitting element, a capacitor which stores a difference in potential caused by the data signal therein, a drive transistor which has a gate electrode connected to the data line via the capacitor and controls light emission of the light-emitting element based on a difference in potential between the gate electrode and a source electrode thereof, which is generated by a potential supplied by the data line and the potential difference stored in the capacitor, and a variation control switch which causes the difference in potential between the gate and source electrodes of the drive transistor to vary based on the data signal at the turning on thereof and prevents the difference in potential from varying at the turning off thereof.

    摘要翻译： 本发明提供一种图像显示装置，包括各自提供数据信号的数据线和多个像素电路。 每个像素电路包括发光元件，存储由其中的数据信号引起的电位差的电容器，驱动晶体管，其具有经由电容器连接到数据线的栅电极并控制光的发光 基于由数据线提供的电位和存储在电容器中的电位差产生的栅电极和源电极之间的电位差的发光元件以及使电位差产生差异的变化控制开关 驱动晶体管的栅极和源极之间的电位根据其导通时的数据信号而变化，并且防止电位差在其截止时变化。