Electron-beam generating device having plurality of cold cathode elements, method of driving said device and image forming apparatus applying same
    92.
    发明授权
    Electron-beam generating device having plurality of cold cathode elements, method of driving said device and image forming apparatus applying same 失效
    具有多个冷阴极元件的电子束产生装置,驱动所述装置的方法和施加该装置的图像形成装置

    公开(公告)号:US06445367B1

    公开(公告)日:2002-09-03

    申请号:US08489391

    申请日:1995-06-12

    IPC分类号: G09G322

    摘要: A method and apparatus for driving an electron source in which a high-quality image display is presented by correcting a non-uniform effective current distribution caused in cold cathode elements by leakage current. A digital video signal enters a shift register where a serial-to-parallel conversion is made for each line of an image based upon a shift clock signal. One line of the image data that has been subjected to the serial-to-parallel conversion is latched in a latch circuit and then applied to a voltage modulating circuit. The latter voltage-modulates the input data and sends the modulated signal to a voltage/current converting circuit. The latter converts the voltage quantity to a current quantity, which is applied to each of the cold cathode elements of a display panel through respective column terminals. A voltage V1 is applied to the selected row wire, and a voltage V2 (V2≠V1) is applied to all other row wires, for controlling the leakage current.

    摘要翻译: 一种用于驱动电子源的方法和装置,其中通过利用泄漏电流校正由冷阴极元件引起的不均匀有效电流分布来呈现高品质图像显示。 数字视频信号进入移位寄存器,其中基于移位时钟信号对图像的每一行进行串行到并行转换。 已经经过串并转换的图像数据的一行被锁存在锁存电路中,然后被施加到电压调制电路。 后者对输入数据进行电压调制,并将调制信号发送到电压/电流转换电路。 后者将电压量转换成通过各个列端子施加到显示面板的每个冷阴极元件的电流量。 电压V1被施加到所选择的行线,并且电压V2(V2 <> V1)被施加到所有其它行导线,以控制漏电流。

    Battery charging apparatus
    93.
    发明授权

    公开(公告)号:US06362603B1

    公开(公告)日:2002-03-26

    申请号:US09780905

    申请日:2001-02-09

    IPC分类号: H02J700

    摘要: A battery charging apparatus comprising a controller to control on-off controllable switch elements of an AC power source output short circuit and including a first control section to control the on-off controllable switch elements so that they are at an on-state when an instantaneous terminal voltage of a battery exceeds a first set value and a second control section to control the on-off switch elements so that they are at an on-state when an average voltage of the battery exceeds a second set value and serving to control them when a power source switch is closed.

    Image forming apparatus and method of manufacturing and adjusting the same
    96.
    发明授权
    Image forming apparatus and method of manufacturing and adjusting the same 失效
    图像形成装置及其制造和调整方法

    公开(公告)号:US06184851B2

    公开(公告)日:2001-02-06

    申请号:US08724312

    申请日:1996-10-01

    IPC分类号: G09G322

    摘要: It is an object of the invention to provide an image forming apparatus capable of easily obtaining a white balance and performing image display with excellent color reproduction properties, and a method of manufacturing and adjusting the image forming apparatus. A plurality of surface conduction electron-emitting devices (1002) are arranged on a substrate (1001). Light emission is performed in accordance with the colors (R, G, and B) of phosphors applied to a phosphor film (1008) upon electron emission from the devices, so that an image is formed. The electron-emitting characteristics of the surface conduction electron-emitting devices (1002) are shifted in advance in correspondence with corresponding phosphor colors. Therefore, a satisfactory white balance of light emission of the R, G, and B phosphors can be obtained.

    摘要翻译: 本发明的目的是提供一种能够容易地获得白平衡并执行具有优异的色彩再现特性的图像显示的图像形成装置,以及制造和调整图像形成装置的方法。 多个表面传导电子发射器件(1002)被布置在衬底(1001)上。 根据来自器件的电子发射时施加到荧光体膜(1008)的荧光体的颜色(R,G和B)进行发光,从而形成图像。 表面传导电子发射器件(1002)的电子发射特性预先相应于相应的荧光体颜色移动。 因此,可以获得令人满意的R,G和B荧光体的白平衡发光。

    Electron generating device, image display apparatus, driving circuit therefor, and driving method
    97.
    发明授权
    Electron generating device, image display apparatus, driving circuit therefor, and driving method 失效
    电子发生装置,图像显示装置,其驱动电路及驱动方法

    公开(公告)号:US06169528A

    公开(公告)日:2001-01-02

    申请号:US08689656

    申请日:1996-08-13

    IPC分类号: G09G322

    摘要: In order to prevent voltage drops across the wiring resistances in a multi-electron source having a plurality of electron emitters wired in the form of a matrix through a plurality of data wiring layers and a plurality of scanning wiring layers, a constant current signal is output to each data wiring layer. At this time, each non-selected data wiring layer tends to be set at a high impedance and vary in potential, resulting in an abnormal turn-on operation or an electron orbit shift. A driving circuit for solving this problem is provided. A switch for switching a constant current output unit for outputting a constant current regardless of the impedance of a signal output destination, and a constant voltage output unit for outputting a constant voltage regardless of the impedance of a signal output destination is connected to each data wiring layer. For example, a constant-current circuit (17) as a current output unit always outputs the same current (I1 to In) to a switch (30). A pulse width signal (PW1 to PWn) from a pulse-width modulation circuit (7) serves to switch the mode of outputting a current (I1 to In) to a data wiring layer (Dy1 to Dyn) and the mode of fixing a data wiring layer to voltage GND.

    摘要翻译: 为了防止具有通过多个数据布线层和多​​个扫描布线层以矩阵形式布线的多个电子发射体的多电子源中的布线电阻之间的电压降,输出恒定电流信号 到每个数据布线层。 此时,每个未选择的数据布线层倾向于设置为高阻抗并且电位变化,导致异常接通操作或电子轨道偏移。 提供了解决这个问题的驱动电路。 用于切换用于输出恒定电流的恒定电流输出单元的开关,而不管信号输出目的地的阻抗如何,以及用于输出恒定电压而不管信号输出目的地的阻抗的恒定电压输出单元连接到每个数据布线 层。 例如,作为电流输出单元的恒流电路(17)总是向开关(30)输出相同的电流(I1〜In)。 来自脉冲宽度调制电路(7)的脉冲宽度信号(PW1〜PWn)用于将输出电流(I1〜In)的模式切换为数据布线层(Dy1〜Dyn)和固定数据的方式 接线层到电压GND。

    Electron generating device, image display apparatus, driving circuit
therefor, and driving method

    公开(公告)号:US6028575A

    公开(公告)日:2000-02-22

    申请号:US689658

    申请日:1996-08-13

    IPC分类号: G09G3/20 G09G3/22 H01J1/316

    摘要: In order to cause a multi-electron source having electron emitters wired in the form of a matrix to emit electrons without any variations, there is provided an electron generating device including a multi-electron source (601) having a plurality of electron emitters (1002) wired in the form of a matrix through a plurality of data wiring layers (1004) and a plurality of scanning wiring layers (1003), and a driving circuit for driving the multi-electron source (601), the driving circuit including a first driving means (603) for applying a first voltage (Vs) to a scanning wiring layer to which an electron emitter which is to emit electrons is connected, and applying a second voltage (Vns) to a scanning wiring layer to which an electron emitter which is not to emit electrons is connected, and a second driving means (602) for applying a third voltage (Ve) to a data wiring layer to which an electron emitter which is to emit electrons is connected, and applying a fourth voltage (Vg) to a data wiring layer to which an electron emitter which is not to emit electrons is connected, wherein the second voltage (Vns) is substantially equal to the third voltage (Ve).

    Multi-electron beam source and image display device using the same
    100.
    发明授权
    Multi-electron beam source and image display device using the same 失效
    多电子束源和图像显示装置使用相同

    公开(公告)号:US5682085A

    公开(公告)日:1997-10-28

    申请号:US467900

    申请日:1995-06-06

    IPC分类号: G09G3/22 G09G3/10

    摘要: A multi-electron beam source comprises an electron emitting element part including: a plurality of electron emitting elements provided two-dimensionally in a matrix-like arrangement on a substrate; opposing terminals of electron emitting elements arranged adjacently in the column direction thereof being electrically connected to each other; terminals on the same side of all the electron emitting elements in the same row being electrically connected; and the plurality of electron emitting elements being arranged in "m" rows, "m" representing a number of two or more, and a driving circuit part for driving said electron emitting element part. The multi-electron beam source has means for removing a spike noise superposed onto the driving pulse generated by said driving circuit part.

    摘要翻译: 多电子束源包括电子发射元件部分,包括:在基板上以矩阵状布置二维地设置的多个电子发射元件; 电子发射元件在其列方向上相邻布置的相对端子彼此电连接; 同一行中所有电子发射元件的同一侧的端子电连接; 并且多个电子发射元件以“m”行排列,“m”表示两个或更多个数量,以及用于驱动所述电子发射元件部分的驱动电路部分。 多电子束源具有用于去除叠加在由所述驱动电路部分产生的驱动脉冲上的尖峰噪声的装置。