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    Image display device
    1.
    发明授权
    Image display device 有权
    图像显示装置

    公开(公告)号：US07518577B2

    公开(公告)日：2009-04-14

    申请号：US10894017

    申请日：2004-07-20

    申请人： Hajime Akimoto ,  Kiyoshige Kinugawa ,  Nobuaki Hayashi

    发明人： Hajime Akimoto ,  Kiyoshige Kinugawa ,  Nobuaki Hayashi

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/3258 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/066 ,  G09G2320/0295 ,  G09G2320/043

    摘要： An image display device which has a stable luminous brightness among pixels. An on/off control switch 15 for stopping the driving operation of a light emitting element 13 is provided in a pixel 1. A change in the luminous brightness caused by a variation in the characteristic of the light emitting element 13 is suppressed by feeding a result measured by a current measuring circuit provided in one end of a power line 4 back to a drive signal for the light emitting element 13.

    摘要翻译： 一种在像素之间具有稳定的发光亮度的图像显示装置。 用于停止发光元件13的驱动操作的开/关控制开关15设置在像素1中。通过馈送结果抑制由发光元件13的特性变化引起的发光亮度的变化 由设置在电力线4的一端的电流测量电路返回到发光元件13的驱动信号。

    Image display
    5.
    发明授权
    Image display 有权
    图像显示

    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。