Field forming electrodes on high voltage spacers
    1.
    发明授权
    Field forming electrodes on high voltage spacers 失效
    在高电压隔板上形成场

    公开(公告)号:US5532548A

    公开(公告)日:1996-07-02

    申请号:US317205

    申请日:1994-10-03

    摘要: A flat panel display includes a faceplate and an opposing backplate. The two are sealed together and a sealed envelope is created that includes an active area of length L.sub.1. The active layer includes addressable pixels on the faceplate. Spacers are perpendicular to the faceplate and backplate. The length of a spacer is in a direction parallel to the plane of the faceplate. At least one spacer is positioned in the envelope and provides rigidity to the display. This is required because of the high vacuum which is maintained within the envelope. One or more electrodes are formed on an exterior surface of the spacer. The electrodes extend a length of L.sub.2 along a side of the spacer that is at least equal to L.sub.1. Voltages applied to the electrodes are controlled to achieve a desired voltage distribution between the backplate and the faceplate. The electrode is made of a material with a sheet resistance of less than about 10.sup.5 to 10.sup.7 .OMEGA./.quadrature.. The potential drop across the spacer between the faceplate and the backplate can be tailored by the selection of the position of the electrodes on the spacers, as well as the potentials applied to the electrodes. An additional way of tailoring the potential drop is selecting a desired thickness or conductivity of the spacer from top to bottom.

    摘要翻译: 平板显示器包括面板和相对的背板。 两者密封在一起,并且形成包括长度为L1的有效区域的密封外壳。 活动层包括面板上的可寻址像素。 垫片垂直于面板和背板。 间隔物的长度在平行于面板平面的方向上。 至少一个间隔件定位在外壳中并为显示器提供刚性。 这是因为保持在信封内的高真空是必需的。 一个或多个电极形成在间隔件的外表面上。 电极沿着至少等于L1的间隔物的一侧延伸L2的长度。 控制施加到电极的电压以在背板和面板之间实现期望的电压分布。 电极由薄层电阻小于约105至107欧姆/平方厘米的材料制成。 可以通过选择间隔物上的电极的位置以及施加到电极的电位来调整跨越面板和背板之间的间隔物的电位降。 一种额外的方法来调整潜在的下降是从顶部到底部选择间隔物的期望的厚度或导电性。

    Flat-panel display with intensity control to reduce light-centroid shifting
    2.
    发明授权
    Flat-panel display with intensity control to reduce light-centroid shifting 有权
    平板显示屏具有强度控制,减少轻质心跳

    公开(公告)号:US06414428B1

    公开(公告)日:2002-07-02

    申请号:US09302698

    申请日:1999-04-30

    IPC分类号: H01J162

    摘要: The intensity at which electrons emitted by a first plate structure (10) in a flat-panel display strike a second plate structure (12) for causing it to emit light is controlled so as to reduce image degradation that could otherwise arise from undesired electron-trajectory changes caused by effects such as the presence of a spacer system (14) between the plate structures. An electron-emissive region (20) in the first plate structure typically contains multiple laterally separated electron-emissive portions (201 and 202) for selectively emitting electrons. An electron-focusing system in the first plate structure has corresponding focus openings (42P1 and 42P2) through which electrons emitted by the electron-emissive portions respectively pass. Upon being struck by the so-emitted electrons, a light-emissive region (22) in the second plate structure emits light to produce at least part of a dot of the display's image.

    摘要翻译: 控制由平板显示器中的第一板结构(10)发射的电子撞击用于使其发光的第二板结构(12)的强度,以便减少否则可能由不期望的电子发射引起的图像劣化, 由诸如板结构之间的隔离系统(14)的影响引起的轨迹变化。 第一板结构中的电子发射区(20)通常包含用于选择性地发射电子的多个横向分离的电子发射部分(201和202)。 第一板结构中的电子聚焦系统具有相应的聚焦开口(42P1和42P2),电子发射部分发射的电子分别通过该开口。 在被所发射的电子撞击时,第二板结构中的发光区域(22)发光,以产生显示器图像的至少一部分点。

    Methods for fabricating a flat panel display having high voltage supports
    6.
    发明授权
    Methods for fabricating a flat panel display having high voltage supports 失效
    制造具有高电压支撑的平板显示器的方法

    公开(公告)号:US5746635A

    公开(公告)日:1998-05-05

    申请号:US572348

    申请日:1995-12-12

    摘要: According to the invention, a flat panel device includes a spacer for providing internal support. In one embodiment, the spacer is made of ceramic, glass-ceramic, ceramic reinforced glass, devitrified glass, metal with electrically insulative coating or high-temperature vacuum-compatible polyimide, and can be a spacer wall, a spacer structure including a plurality of holes, or some combination of a spacer wall, spacer walls, and spacer structure. Spacer surfaces are treated to reduce secondary emissions and prevent charging of the spacer surfaces. The flat panel device can include a thermionic cathode or a field emitter cathode, and the faceplate and backplate can both be straight or both be curved. The flat panel device can include an addressing grid. In a method according to the invention for assembling a flat panel device, spacer walls are held in proper alignment during assembly by being inserted into a notch formed in the addressing grid and/or a top or bottom wall of the enclosure. Spacers according to the invention can be easily fabricated using standard techniques for forming and assembling ceramic or glass-ceramic tape.

    摘要翻译: 根据本发明,平板装置包括用于提供内部支撑的间隔件。 在一个实施例中,间隔件由陶瓷,玻璃陶瓷,陶瓷增强玻璃,失透玻璃,具有电绝缘涂层的金属或高温真空兼容的聚酰亚胺制成,并且可以是间隔壁,间隔结构,包括多个 孔或间隔壁,间隔壁和间隔结构的某种组合。 处理间隔表面以减少二次排放并防止间隔件表面的充电。 平板装置可以包括热离子阴极或场发射体阴极,并且面板和背板都可以是直的或两者都是弯曲的。 平板设备可以包括寻址网格。 在根据本发明的用于组装平板装置的方法中,通过插入到形成在寻址格栅中的凹口和/或外壳的顶壁或底壁中的间隔壁在组装期间被保持正确对准。 根据本发明的间隔件可以使用用于形成和组装陶瓷或玻璃 - 陶瓷带的标准技术容易地制造。

    Metallized high voltage spacers
    7.
    发明授权
    Metallized high voltage spacers 失效
    金属化高压隔板

    公开(公告)号:US5742117A

    公开(公告)日:1998-04-21

    申请号:US317299

    申请日:1994-10-03

    摘要: A flat panel apparatus includes a faceplate with a backplate interior side, a backplate with a backplate interior side, and sidewalls positioned between the faceplate and backplate, all in combination forming an enclosed sealed envelope. At least one spacer is positioned in the envelope. The spacer includes a spacer backplate face, with a periphery, and it is positioned adjacent to the backplate interior side. The spacer also includes a spacer faceplate face, with a periphery, and it is positioned adjacent to the faceplate interior side. A first conductive layer, metallization, is applied to substantially cover the entire spacer backplate face to its periphery. A second conductive layer, metallization, is applied to substantially cover the entire spacer faceplate face to its periphery. A plurality of spacers can be positioned in the sealed envelope, and the spacers can be in the form of walls, posts, or wall segments. In place of the conductive layers at the faces, each spacer can include a plurality of electrodes that extend along spacer sidewalls. In this embodiment, the spacer has a sidewall electrode that is positioned sufficiently close to each face surface as to create good ohmic contact between the face surface and the respective faceplate or backplate interior side.

    摘要翻译: 平板装置包括具有背板内侧的面板,具有背板内侧的背板和位于面板和背板之间的侧壁,所有组合形成封闭密封的外壳。 至少一个间隔物定位在信封中。 间隔件包括具有周边的隔离物背板面,并且其邻近背板内侧定位。 间隔件还包括具有周边的间隔件面板面,并且其定位成与面板内侧相邻。 施加第一导电层,金属化,以基本上将整个间隔物背板面覆盖到其周边。 施加第二导电层,金属化,以基本上将整个间隔件面板面覆盖到其周边。 多个间隔件可以定位在密封的外壳中,并且间隔件可以是壁,柱或壁段的形式。 代替表面处的导电层,每个间隔物可以包括沿间隔壁侧壁延伸的多个电极。 在该实施例中,间隔件具有侧壁电极,该侧壁电极定位成与每个面表面充分接近,以在面部表面和相应的面板或背板内侧之间产生良好的欧姆接触。

    Procedures and apparatus for turning-on and turning-off elements within a field emission display device

    公开(公告)号:US06307326B1

    公开(公告)日:2001-10-23

    申请号:US09695593

    申请日:2000-10-23

    IPC分类号: G09G310

    摘要: A method of removing contaminant particles in newly fabricated field emission displays. According to one embodiment of the present invention, contaminant particles are removed by a conditioning process which includes the steps of: a) driving a anode of a field emission display (FED) to a predetermined voltage; b) slowly increasing an emission current of the FED after the anode has reached the predetermined voltage; and c) providing an ion-trapping device for catching the ions and particles knocked off, or otherwise released, by emitted electrons. In this embodiment, by driving the anode to the predetermined voltage and by slowly increasing the emission current of the FED, contaminant particles are effectively removed without damaging the FED. The present invention also provides a method of operating FEDs to prevent gate-to-emitter current during turn-on and turn-off. In this embodiment, the method comprises the steps of: a) enabling the anode display screen; and, b) enabling the electron-emitters after the anode display screen is enabled. In this embodiment, by allowing sufficient time for the anode display screen to reach a predetermined voltage before the emitter is enabled, the emitted electrons will be attracted to the anode.