公开(公告)号：US20030016190A1

公开(公告)日：2003-01-23

申请号：US10247303

申请日：2002-09-20

申请人： Canon Kabushiki Kaisha

发明人： Shigeki Kondo

IPC分类号： G09G003/20

CPC分类号： G09G3/3258 ,  G09G3/2018 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0254 ,  G09G2310/06 ,  G09G2320/02 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/043

摘要： In a drive circuit to be used for a light-emitting panel formed by a light-emitting element array having a matrix type configuration, wherein a plurality of thin film transistors are arranged for each pixel of the light-emitting element array, a circuit for canceling the offset voltage of a drive transistor is provided by arranging a memory capacitance at the input side of the light-emitting element to instantly accumulate the offset voltage of the drive transistor so as to offset the phenomenon of the voltage fall that is equal to the offset voltage when an image signal s applied at the next timing. With this arrangement, variances in the characteristic of the drive transistors can be cancelled to lessen the variances in the brightness of the light-emitting elements and improve the high speed response of the light-emitting elements.

摘要翻译： 在用于由具有矩阵型配置的发光元件阵列形成的发光面板的驱动电路中，其中为发光元件阵列的每个像素设置多个薄膜晶体管， 通过在发光元件的输入侧布置存储器电容来立即消除驱动晶体管的偏移电压来提供驱动晶体管的偏移电压，以便立即累积驱动晶体管的偏移电压，以便抵消等于 当在下一个定时施加图像信号时的偏移电压。 利用这种布置，可以消除驱动晶体管的特性的变化，以减少发光元件的亮度的变化，并提高发光元件的高速响应。

公开(公告)号：US20030020705A1

公开(公告)日：2003-01-30

申请号：US10247564

申请日：2002-09-20

申请人： Canon Kabushiki Kaisha

发明人： Shigeki Kondo ,  Hiroyuki Nakamura

IPC分类号： G09G005/00

CPC分类号： G09G3/3241 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/2022 ,  G09G3/2074 ,  G09G3/30 ,  G09G3/3233 ,  G09G2300/0465 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0895 ,  G09G2310/0251 ,  G09G2330/021

摘要： A light-emitting element and a picture signal current supply circuit are formed near each of the crossings of scan lines and signal lines and a charging circuit is provided to precharge the electric capacitance of the light-emitting element with an electric load that is lower than the light-emitting threshold level of the element. With this arrangement, the time that needs to be spent before the light-emitting element, which is an organic EL element, starts emitting light is reduced so that it can be driven at high speed to display an image with tones.

摘要翻译： 在扫描线和信号线的每个交叉点附近形成有发光元件和图像信号电流供给电路，并且设置充电电路，以便使电力负载小于等于的电力来对发光元件的电容进行预充电 元件的发光阈值电平。 利用这种布置，减少了作为有机EL元件的发光元件开始发光之前需要花费的时间，从而可以高速驱动以显示具有色调的图像。

公开(公告)号：US20030178946A1

公开(公告)日：2003-09-25

申请号：US10247284

申请日：2002-09-20

申请人： Canon Kabushiki Kaisha

发明人： Hiroyuki Nakamura ,  Shigeki Kondo

IPC分类号： G09G003/10

CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2330/02

摘要： The invention intends to improve the gradation and the image quality in a display apparatus based on a current-controlled light emission device, represented by the organic EL device. There is provided a circuit configuration in which switch means is provided parallel to the light-emitting element, and a current path is provided by a change in the conductances of the switch means and the light-emitting element to control the light-emitting and non-emitting states of the light-emitting element. The circuit configuration enables gradational display by an analog change in the conductance, and time gradation display by controlling the light-emitting time.

摘要翻译： 本发明旨在基于由有机EL器件表示的电流控制发光器件来改善显示装置中的灰度和图像质量。 提供了一种电路结构，其中开关装置平行于发光元件设置，并且通过开关装置和发光元件的电导的变化来提供电流路径，以控制发光元件和非发光元件 发光元件的发光状态。 电路配置通过控制发光时间，通过电导的模拟改变和时间灰度显示来实现渐变显示。

公开(公告)号：US20030016191A1

公开(公告)日：2003-01-23

申请号：US10247626

申请日：2002-09-20

申请人： Canon Kabushiki Kaisha

发明人： Hiroyuki Nakamura ,  Shigeki Kondo

IPC分类号： G09G003/20

CPC分类号： G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0895 ,  G09G2310/0254 ,  G09G2320/043 ,  Y10S362/80

摘要： Gradation is improved in image formation by image-forming apparatus employing a light emitting elements such as organic light-emitting element, and image quality. A light-emitting element is provided in which the emission and no emission of light is controlled by the intensity of the input signal from the scanning line and the signal line by flowing constant electric current to a two-input-differential connection circuit one of which is connected to the light-emitting element.

摘要翻译： 通过使用诸如有机发光元件的发光元件和图像质量的图像形成装置，图像形成得到改善。 提供一种发光元件，其中通过使恒定的电流流向其中一个的两输入差分连接电路，通过来自扫描线和信号线的输入信号的强度来控制发光和不发光 连接到发光元件。