Electron photoemission with tunable excitation and transport energetics

    公开(公告)号:US10381187B1

    公开(公告)日:2019-08-13

    申请号:US15675607

    申请日:2017-08-11

    Abstract: A photocathode for use in vacuum electronic devices has a bandgap gradient across the thickness (or depth) of the photocathode between the emitting surface and the opposing surface. This bandgap gradient compensates for depth-dependent variations in transport energetics. When the bandgap energy EBG(z) is increased for electrons with shorter path lengths to the emitting surface and decreased for electrons with longer path lengths to the emitting surface, such that the sum of EBG(z) and the scattering energy is substantially constant or similar for electrons photoexcited at all locations within the photocathode, the energies of the emitted electrons may be more similar (have less variability), and the emittance of the electron beam may be desirably decreased. The photocathode may be formed of a III-V semiconductor such as InGaN or an oxide semiconductor such as GaInO.

    Field emission backlight device
    2.
    发明申请
    Field emission backlight device 审中-公开
    场致发射背光装置

    公开(公告)号:US20050174040A1

    公开(公告)日:2005-08-11

    申请号:US11046713

    申请日:2005-02-01

    Abstract: A field emission backlight device includes: a front substrate and a rear substrate arranged in parallel and spaced apart from each other by a predetermined distance; an anode and a cathode arranged opposite to each other on a respective inner surfaces of the front and rear substrates; a fluorescent layer arranged on the anode and having a predetermined thickness; a convex portion including a plurality of convex projections arranged on an outer surface of the front substrate opposite to the anode; and electron emitters arranged on the cathode to emit electrons in response to an applied field.

    Abstract translation: 场致发射背光装置包括:前基板和后基板,其平行布置并彼此隔开预定距离; 在前基板和后基板的相应内表面上彼此相对布置的阳极和阴极; 布置在阳极上并具有预定厚度的荧光层; 凸部,其包括布置在与所述阳极相对的所述前基板的外表面上的多个凸起突起; 以及布置在阴极上以响应于施加场发射电子的电子发射器。

    Optical coupler for projection display
    3.
    发明申请
    Optical coupler for projection display 审中-公开
    用于投影显示的光耦合器

    公开(公告)号:US20050134164A1

    公开(公告)日:2005-06-23

    申请号:US10739461

    申请日:2003-12-18

    CPC classification number: H01J29/894 H01J2229/8907

    Abstract: An optical element is disclosed that includes a face plate of a cathode ray tube and a lens element facing the face plate. The optical element further includes an optical coupling material disposed between the lens element and the face plate. The optical coupling material includes particles dispersed in a host material.

    Abstract translation: 公开了一种包括阴极射线管的面板和面对面板的透镜元件的光学元件。 光学元件还包括设置在透镜元件和面板之间的光学耦合材料。 光学耦合材料包括分散在主体材料中的颗粒。

    Fluorescent display device
    4.
    发明授权
    Fluorescent display device 失效
    荧光显示装置

    公开(公告)号:US06856084B2

    公开(公告)日:2005-02-15

    申请号:US09895322

    申请日:2001-07-02

    CPC classification number: H01J31/15 H01J29/896

    Abstract: A fluorescent display device having a pseudo half mirror formed on a rear surface a face plate thereof and exhibiting a function like a neutral density filter. The face plate is formed on a whole rear surface thereof with an aluminum film including opening portions, non-opening portions and a solid portion. The opening and non-opening portions cooperate with each other to constitute a pseudo half mirror. The pseudo half mirror has light transmittance determined depending on a ratio in area between the opening portions and the non-opening portions. Thus, the light transmittance may be set as desired by varying the area ratio.

    Abstract translation: 一种荧光显示装置,其具有形成在其背面上的伪半反镜,其表面具有中性密度滤光片的功能。 面板在整个后表面上形成有包括开口部分,非开口部分和固体部分的铝膜。 开口部和非开口部相互配合构成伪半反射镜。 伪半反射镜具有取决于开口部分和非开口部分之间的面积比的光透射率。 因此,通过改变面积比,可以根据需要设定透光率。

    Cathode ray tube with panel provided with colored layer
    5.
    发明授权
    Cathode ray tube with panel provided with colored layer 失效
    阴极射线管与面板配有彩色层

    公开(公告)号:US06856082B2

    公开(公告)日:2005-02-15

    申请号:US09902972

    申请日:2001-07-11

    CPC classification number: H01J29/89

    Abstract: This is a cathode ray tube having a panel provided with a colored layer on an outer surface of a face portion, wherein an emission luminance ratio is 75% or higher in a lowest part relative to a highest part, and a diffuse reflectance ratio is 90% or higher in a lowest part relative to a highest part in an image display area of the face portion. Due to this configuration, a cathode ray tube with a natural appearance can be obtained in which a luminance difference or a contrast difference is not perceived in the entire area of the face portion.

    Abstract translation: 这是具有在面部的外表面上设置有着色层的面板的阴极射线管,其中相对于最高部分的最低部分的发光亮度比为75%以上,漫反射率为90 在相对于脸部的图像显示区域中的最高部分的最低部分中的%或更高。 由于这种构造,可以获得在脸部的整个区域中不感觉到亮度差或对比度差异的具有自然外观的阴极射线管。

    Anti-reflection film and display device having the same
    6.
    发明授权
    Anti-reflection film and display device having the same 有权
    防反射膜及其显示装置

    公开(公告)号:US6166855A

    公开(公告)日:2000-12-26

    申请号:US326551

    申请日:1999-06-07

    Abstract: An anti-reflection film includes a transparent support and a low refractive index layer. A refractive index of the low refractive index layer is lower than a refractive index of the transparent support. The low refractive index layer contains micro voids in an amount of 3 to 50 volume % of the low refractive index layer. The anti-reflection film further has an overcoating layer provided on the low refractive index layer. The overcoating layer contains a fluorine compound. The fluorine compound is not present in the micro voids, or an amount of the fluorine compound present in the micro voids is less than 70 volume % of the micro voids.

    Abstract translation: 防反射膜包括透明支撑体和低折射率层。 低折射率层的折射率低于透明支撑体的折射率。 低折射率层含有低折射率层的3〜50体积%的微孔。 抗反射膜还具有设置在低折射率层上的外涂层。 外涂层含有氟化合物。 氟化合物不存在于微空隙中,或微孔中存在的氟化合物的量少于微孔的70体积%。

    Panel for color cathode ray tube
    8.
    发明授权
    Panel for color cathode ray tube 失效
    彩色阴极射线管面板

    公开(公告)号:US6140756A

    公开(公告)日:2000-10-31

    申请号:US18311

    申请日:1998-02-03

    CPC classification number: H01J29/861 H01J2229/862

    Abstract: A color cathode ray tube has a vacuum enclosure including a panel unit having a fluorescent film formed on its inner face, consisting of densely arrayed three color dot trios of a fluorescent material, a shadow mask being suspended in the vicinity of the fluorescent film; a neck unit housing an electron gun for emitting three electron beams; and a funnel unit for joining the panel unit and the neck unit. The panel unit has a diagonal diameter not more than 52 cm, wherein the effective display area on the outer face of the panel unit has a diagonal radius of curvature not less than 1,000 mm, and the dot trios of the fluorescent material are horizontally arrayed in a number not less than 1,450. As a result, it is possible to provide a color cathode ray tube which has a resolution corresponding to 2M pixels, but which has no display luminance irregularity and which can be adopted for use in a desktop terminal.

    Abstract translation: 彩色阴极射线管具有真空外壳,其包括具有形成在其内表面上的荧光膜的面板单元,由致密排列的荧光材料三色三点组成,荫罩悬挂在荧光膜附近; 容纳用于发射三束电子束的电子枪的颈部单元; 以及用于接合面板单元和颈部单元的漏斗单元。 面板单元具有不大于52cm的对角直径,其中面板单元的外表面上的有效显示区域具有不小于1000mm的对角曲率半径,并且将荧光材料的三角形水平排列在 数字不低于1,450。 结果,可以提供一种彩色阴极射线管,该彩色阴极射线管具有对应于2M个像素的分辨率,但不具有显示亮度不均匀性并且可以用于桌面终端。

    Reduction of smearing in cold cathode displays
    9.
    发明授权
    Reduction of smearing in cold cathode displays 有权
    减少冷阴极显示器的污迹

    公开(公告)号:US6084346A

    公开(公告)日:2000-07-04

    申请号:US253295

    申请日:1999-02-19

    CPC classification number: H01J29/896 H01J31/127 H01J2329/892

    Abstract: A problem associated with field emission displays is that of `smearing` where an otherwise sharp image appears to be surrounded by a diffuse halo of light. Our investigations have suggested that this is due to spurious reflections from the surface of the gate electrode layer. To eliminate these we have deposited an anti-reflection coating on the top surface of the gate electrode layer. This prevents the reflection of light rays travelling away from the phosphor layer towards the cathode. Such rays, if their reflection were allowed, would emerge at a different spot in the display from what was intended, resulting in a false image. A method for manufacturing a field emission display based on this approach is also described.

    Abstract translation: 与场发射显示相关的问题是“拖尾”,其中清晰的图像似乎被光的漫射光环包围。 我们的研究表明,这是由于栅电极表面的杂散反射。 为了消除这些,我们在栅电极层的顶表面上沉积了防反射涂层。 这防止了从荧光体层向阴极行进的光线的反射。 如果允许这样的反射,那么这样的光线将会从显示器的不同位置出现,从而导致虚假的图像。 还描述了基于该方法制造场致发射显示器的方法。

    Cathode ray tube and the method of the phosphor layer
    10.
    发明授权
    Cathode ray tube and the method of the phosphor layer 失效
    阴极射线管和荧光粉层的方法

    公开(公告)号:US6071657A

    公开(公告)日:2000-06-06

    申请号:US239129

    申请日:1999-01-28

    Abstract: In a method for manufacturing a phosphor screen of a cathode ray tube, a first photo-resist layer is coated on an inner surface of a panel of the cathode ray tube except at predetermined locations. A second photo-resist layer dispersed with pigment particles is coated on the first photo-resist layer and at the predetermined locations. The second photo-resist layer is exposed at the predetermined locations from an opposite side of the panel. The first photo-resist layer is dissolved and the second photo-resist layer is removed from the first photo-resist layer so as to form a color filter layer at the predetermined locations. A phosphor layer is formed on the color filter layer.

    Abstract translation: 在制造阴极射线管的荧光屏的方法中,除了在预定位置之外,在阴极射线管的面板的内表面上涂覆第一光致抗蚀剂层。 分散有颜料颗粒的第二光致抗蚀剂层涂覆在第一光致抗蚀剂层上和预定位置。 第二光致抗蚀剂层从面板的相对侧在预定位置露出。 溶解第一光致抗蚀剂层,并且从第一光致抗蚀剂层除去第二光致抗蚀剂层,以便在预定位置形成滤色器层。 在滤色器层上形成荧光体层。

Patent Agency Ranking