Flat cathode-ray tube and method of fabricating same
    1.
    发明授权
    Flat cathode-ray tube and method of fabricating same 失效
    扁平阴极射线管及其制造方法

    公开(公告)号:US4764706A

    公开(公告)日:1988-08-16

    申请号:US36177

    申请日:1987-04-08

    摘要: A flat CRT having a phosphor screen inclined with respect to the center axis of an electron beam and formed by applying phosphors to the inner surface of a tube wall. The tube inner surface is defined by rotating a plurality of logarithmic spiral curves having a constant angle of incidence and present in the x-y plane of a polar coordinate system in which the deflection center of the electron beam is its origin, the center axis extends through the origin and serves as the x-axis, and the y-axis extends through the origin and intersects the x-axis at right angles therewith. The spiral curves are rotated about the y-axis each through a specified angle to obtain a group of logarithmic curves defining the tube inner surface.

    摘要翻译: 具有相对于电子束的中心轴倾斜的荧光屏的平坦CRT,通过将荧光体施加到管壁的内表面而形成。 管内表面通过旋转具有恒定入射角的多个对数螺旋曲线来限定,并存在于极坐标系的xy平面中,其中电子束的偏转中心为其原点,中心轴延伸穿过 原点并用作x轴,y轴延伸穿过原点并与x轴成直角相交。 螺旋曲线围绕y轴以特定角度旋转,以获得定义管内表面的一组对数曲线。

    PROJECTION DISPLAY APPARATUS, WRITING/DRAWING BOARD, AND PROJECTION SYSTEM
    4.
    发明申请
    PROJECTION DISPLAY APPARATUS, WRITING/DRAWING BOARD, AND PROJECTION SYSTEM 审中-公开
    投影显示设备,书写/绘图板和投影系统

    公开(公告)号:US20100238141A1

    公开(公告)日:2010-09-23

    申请号:US12727777

    申请日:2010-03-19

    IPC分类号: H04N5/74 G06F3/033

    摘要: A projection system includes a screen, a projection display apparatus for projecting a video image on the screen, and a mount base provided below a projection surface of the screen, for carrying a subject on its upper surface. The projection display apparatus is mechanically coupled to the screen such that video image light from the projection display apparatus is displayed on the screen. Projection display apparatus includes a light source, an imaging portion including the upper surface of the mount base at least in an imaging area, a light modulation portion for modulating light from the light source to generate the video image light based on an input video image or a video image picked up by the imaging portion, and a projection portion for projecting the video image light generated by the light modulation portion.

    摘要翻译: 投影系统包括屏幕,用于在屏幕上投影视频图像的投影显示装置和设置在屏幕的投影表面下方的用于在其上表面上承载被摄体的安装基座。 投影显示装置机械地耦合到屏幕,使得来自投影显示装置的视频图像光被显示在屏幕上。 投影显示装置包括光源,至少在成像区域中包括安装基座的上表面的成像部分,用于调制来自光源的光以基于输入视频图像生成视频图像光的光调制部分,或 由成像部分拾取的视频图像和用于投影由光调制部分产生的视频光的投影部分。

    Flat panel color display
    6.
    发明授权
    Flat panel color display 失效
    平板彩色显示屏

    公开(公告)号:US5126628A

    公开(公告)日:1992-06-30

    申请号:US737896

    申请日:1991-07-26

    IPC分类号: H01J31/12

    CPC分类号: H01J31/126 H01J2329/30

    摘要: A flat display includes a front panel having a fluorescent screen on its rear side, a rear panel defining a flat space with the front panel, linear filament cathodes arranged close to the rear panel, and an address electrode plate having a multiplicity of apertures and disposed close to the front panel. The rear panel is formed on its inner surface with spacer ridges each extending on each side of each filament cathode therealong and having a height to reach the address electrode plate. The spacer ridges give the flat display improved strength against pressure.

    摘要翻译: 平面显示器包括在其后侧具有荧光屏的前面板,与前面板限定平坦空间的后面板,靠近后面板布置的线状灯丝阴极以及设置有多个孔的寻址电极板 靠近前面板。 后板在其内表面上形成有间隔脊,每个间隔脊在每个长丝阴极的每一侧延伸,并且具有到达寻址电极板的高度。 间隔脊使平面显示器提高了抗压强度。