Current driver circuit and image display device
    2.
    发明授权
    Current driver circuit and image display device 有权
    当前驱动电路和图像显示装置

    公开(公告)号:US06774877B2

    公开(公告)日:2004-08-10

    申请号:US10176084

    申请日:2002-06-21

    IPC分类号: G09G330

    CPC分类号: G09G3/3241 G09G2300/0842

    摘要: In a current driver circuit that is applicable to an organic EL (electroluminescent) image display device, the current driver circuit is provided for reducing the influence of variation between transistors that constitute a current mirror circuit while using the current mirror circuit. In the current driver circuit, a third and fourth transistor that operate in a linear region (non-saturation region) are provided between the power supply line and the sources of a first and second transistor that constitute the current mirror circuit; whereby the influence of variations between the threshold voltages of the first and second transistors can be mitigated. The gates of the third and fourth transistors are connected to the gates of the first and second transistors, respectively.

    摘要翻译: 在可应用于有机EL(电致发光)图像显示装置的电流驱动电路中,提供电流驱动电路,用于在使用电流镜电路的同时减小构成电流镜电路的晶体管之间的变化的影响。 在当前的驱动电路中,在电源线和构成电流镜电路的第一和第二晶体管的源极之间设置工作在线性区域(非饱和区域)的第三和第四晶体管; 从而可以减轻第一和第二晶体管的阈值电压之间的变化的影响。 第三和第四晶体管的栅极分别连接到第一和第二晶体管的栅极。

    Apparatus and method for driving display panel
    4.
    发明授权
    Apparatus and method for driving display panel 有权
    用于驱动显示面板的装置和方法

    公开(公告)号:US06771235B2

    公开(公告)日:2004-08-03

    申请号:US09985152

    申请日:2001-11-01

    IPC分类号: G09G330

    摘要: An apparatus for driving a display panel having drive lines and capacitive light emitting elements. The apparatus sequentially selects one scanning line from the scanning lines every scanning period of input video data including a gradation level to specify a drive line corresponding to at least one capacitive light emitting element driven to emit light on the one scanning line in accordance with the input video data, generates a driving signal having a pulse width in accordance with the gradation level every scanning period, and applies the one capacitive light emitting element with a voltage equal to or higher than a light emission threshold voltage in a forward direction for a duration in which the driving signal is generated, through the one scanning line and the specified drive line, and applies the specified drive line with a predetermined potential in response to elimination of the driving signal to decrease the voltage applied to the one capacitive light emitting element in the forward direction to a voltage lower than the light emission threshold voltage.

    摘要翻译: 一种用于驱动具有驱动线和电容发光元件的显示面板的装置。 该装置依次从扫描行中选择一条扫描行,每个扫描行包括灰度等级的输入视频数据的每个扫描周期,以指定与至少一个电容发光元件相对应的驱动线,该电容发光元件根据输入被驱动以在一条扫描线上发光 视频数据产生具有根据每个扫描周期的灰度级别的脉冲宽度的驱动信号,并将具有等于或高于发光阈值电压的电容式发光元件在正向上施加一段持续时间 通过一条扫描线和指定的驱动线产生驱动信号,并且响应于消除驱动信号而施加具有预定电位的指定驱动线,以降低施加到该驱动信号中的一个电容发光元件的电压 向前方向到低于发光阈值电压的电压。

    Electro-optical device, method of driving the same and electronic instrument
    5.
    发明授权
    Electro-optical device, method of driving the same and electronic instrument 有权
    电光装置,其驱动方法及电子仪器

    公开(公告)号:US06750840B2

    公开(公告)日:2004-06-15

    申请号:US09953092

    申请日:2001-09-13

    申请人: Akira Morita

    发明人: Akira Morita

    IPC分类号: G09G330

    摘要: An electro-optical device comprises a scan-line drive circuit which supplies a scan signal to a plurality of scan lines for selecting one of the scan lines; a data-line drive circuit which supplies a data signal to a plurality of data lines; and a voltage transformation circuit which changes a voltage of the data signal supplied from the data-line drive circuit based on a distance between the data-line drive circuit and one of the scan lines which has been sequentially selected by the scan-line drive circuit.

    摘要翻译: 电光装置包括扫描线驱动电路,其将扫描信号提供给多条扫描线,用于选择一条扫描线; 数据线驱动电路,其向多条数据线提供数据信号; 以及电压变换电路,其基于数据线驱动电路与由扫描线驱动电路顺序选择的扫描线之间的距离来改变从数据线驱动电路提供的数据信号的电压 。

    Display apparatus
    6.
    发明授权
    Display apparatus 有权
    显示装置

    公开(公告)号:US06741228B1

    公开(公告)日:2004-05-25

    申请号:US09509197

    申请日:2000-03-23

    IPC分类号: G09G330

    摘要: There is provided behind an optical modulation panel (101) which is not provided with a color filter a planar light source which is provided with EL elements (100R, 100G and 100B) with a built-in optical resonator structure adapted to emit light in red, green and blue and which are periodically arranged on a single glass substrate (103). Lights of different colors obtained by lighting the EL elements (100R, 100G and 100B) are modulated by an optical modulation panel (101) to obtain a color image.

    摘要翻译: 设置在没有设置滤色器的光调制面板(101)的后面,平面光源设置有具有适于发出红色的内置光学谐振器结构的EL元件(100R,100G和100B) ,绿色和蓝色,并且周期性地布置在单个玻璃基板(103)上。 通过照亮EL元件(100R,100G和100B)获得的不同颜色的光被光调制面板(101)调制以获得彩色图像。

    Method of driving an active matrix electro-luminescent display
    7.
    发明授权
    Method of driving an active matrix electro-luminescent display 有权
    驱动有源矩阵电致发光显示器的方法

    公开(公告)号:US06710757B2

    公开(公告)日:2004-03-23

    申请号:US10026712

    申请日:2001-12-27

    申请人: Biing-Seng Wu

    发明人: Biing-Seng Wu

    IPC分类号: G09G330

    摘要: A method of driving an AMEL display. The AMEL display includes a pixel having a first transistor, a second transistor, a capacitor, and an organic light emitting diode (O-LED). A frame time interval for the invention includes at least a first sub-interval and a second sub-interval. The method includes the following steps. First, during the first sub-interval, apply a first pulse to the scan lines sequentially and apply corresponding data signals to the data lines. Next, during the second sub-interval, apply a second pulse to the scan lines sequentially so as to turn on the first transistors and apply a prevention signal to the data lines so as to turn off the corresponding second transistors.

    摘要翻译: 一种驱动AMEL显示器的方法。 AMEL显示器包括具有第一晶体管,第二晶体管,电容器和有机发光二极管(O-LED)的像素。 本发明的帧时间间隔至少包括第一子间隔和第二子间隔。 该方法包括以下步骤。 首先,在第一次间隔期间,顺序地向扫描线施加第一脉冲,并将相应的数据信号应用于数据线。 接下来,在第二子间隔期间,顺序地向扫描线施加第二脉冲,以接通第一晶体管,并将防止信号施加到数据线,以便关闭对应的第二晶体管。

    Display device and method of driving the same

    公开(公告)号:US06697057B2

    公开(公告)日:2004-02-24

    申请号:US10040084

    申请日:2001-10-26

    IPC分类号: G09G330

    摘要: In a conventional EL display device, a general video signal (analog signal voltage) is sampled to be outputted to a source signal line and then inputted to a gate electrode of a driving TFT provided in each pixel. The drain current of the TFT is controlled to control the current flowing into an EL element, thereby adjusting the luminance. However, accurate gray scales cannot be obtained unless the video signal is converted before it is sampled and inputted to the source signal line since the drain current of the driving TFT does not correspond to the gate voltage of the driving TFT linearly. The invention solve this problem by converting an inputted analog signal voltage into a current, converting the current into the gate-source voltage of a correction TFT that has the same polarity as a driving TFT, supplying the gate-source voltage as a source line signal to a source signal line, and applying the source line signal to a gate electrode of the driving TFT. Thus an EL element can emit light at a luminance linearly corresponding to the inputted analog signal voltage.

    Display device
    9.
    发明授权
    Display device 失效
    显示设备

    公开(公告)号:US06661396B2

    公开(公告)日:2003-12-09

    申请号:US09840750

    申请日:2001-04-23

    申请人: Masanori Yabuki

    发明人: Masanori Yabuki

    IPC分类号: G09G330

    摘要: The object of the present invention is to provide an image display device capable of radiating over an image formed into a character with a uniform luminosity as a luminescent surface made according to the dot matrix system without increasing the number of components. To this end, the display device includes the first luminescent section having a prescribed area and the second luminescent section constituting a display with an area larger than that of the first luminescent section, wherein the first and the second luminescent sections include luminescent bodies radiating as electrons move and a pair of electrodes sandwiching these luminescent bodies, at least one of these electrodes determines the luminescent area thereof, and the second luminescent section is constituted by a plurality of divided electrodes.

    摘要翻译: 本发明的目的是提供一种图像显示装置,其能够以均匀的亮度形成的图像形成为根据点阵系统制成的发光面的图像,而不增加部件的数量。为此, 显示装置包括具有规定区域的第一发光部分和构成具有比第一发光部分的面积大的显示器的第二发光部分,其中第一发光部分和第二发光部分包括作为电子移动的发光体,一对 夹着这些发光体的电极,这些电极中的至少一个确定其发光面积,第二发光部由多个分割电极构成。

    Display device
    10.
    发明授权

    公开(公告)号:US06653996B2

    公开(公告)日:2003-11-25

    申请号:US09819880

    申请日:2001-03-28

    申请人: Naoaki Komiya

    发明人: Naoaki Komiya

    IPC分类号: G09G330

    摘要: In a display device including, for each pixel, an organic EL element (60) and TFTs (30, 40) for controlling the element, a sequential circuit (350) is provided for stopping supply of power source voltages Vvdd and Hvdd to drivers (80, 90) for driving the TFTs (30, 40) which control each organic EL element (60) after stopping supply of power source voltage Pvdd to the organic EL element (60) when the device is turned off.