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    • 51. 发明授权
    • Method for providing a gray scale in a field emission display
    • 在场发射显示器中提供灰度级的方法
    • US6025819A
    • 2000-02-15
    • US943174
    • 1997-10-03
    • Chenggang XieRobert T. SmithRodolfo Lucero
    • Chenggang XieRobert T. SmithRodolfo Lucero
    • G09G3/20G09G3/22
    • G09G3/22G09G3/2014
    • A method for providing a gray scale in a field emission display (50) includes the step of providing a first driving pulse (214) having a pulse width equal to a pulse width separation (115) between the graphs (100, 200) of total charge response versus pulse width of a driving pulse for the non-ideal field emission display and the corresponding ideal field emission display. The pulse width separation (115) is the horizontal distance between the two graphs (100, 200) at a region wherein the two graphs (100, 200) are generally parallel. The pulse width, t.sub.n, of an nth driving pulse corresponding to an nth gray scale level is given by t.sub.n =t.sub.1 +[n-1]*[(t.sub.N -t.sub.1)/(N-1)], wherein t.sub.1 is the pulse width of the first driving pulse (214), N is the total number of gray scale levels, and t.sub.N is the pulse width of the Nth driving pulse.
    • 一种用于在场发射显示器(50)中提供灰度级的方法包括提供第一驱动脉冲(214)的步骤,该第一驱动脉冲(214)具有等于总共的图形(100,200)之间的脉冲宽度间隔(115)的脉冲宽度 用于非理想场发射显示的驱动脉冲的电荷响应与脉冲宽度以及相应的理想场发射显示。 脉冲宽度分离(115)是两个图形(100,200)大致平行的区域之间的两个图形(100,200)之间的水平距离。 对应于第n个灰度级的第n个驱动脉冲的脉冲宽度tn由tn = t1 + [n-1] * [(tN-t1)/(N-1)]给出,其中t1是脉冲宽度 的第一驱动脉冲(214),N是灰度级的总数,t N是第N驱动脉冲的脉冲宽度。
    • 54. 发明授权
    • Triode structure flat panel display employing flat field emission cathode
    • 采用平场发射阴极的三极结构平板显示器
    • US5548185A
    • 1996-08-20
    • US458854
    • 1995-06-02
    • Nalin KumarChenggang Xie
    • Nalin KumarChenggang Xie
    • H01J1/304H01J1/316H01J9/02H01J31/12H01J61/067H01J63/06H01J19/24
    • H01J1/3042H01J1/304H01J1/316H01J31/127H01J61/0677H01J63/06H01J9/027H01J2201/30426H01J2201/30457H01J2201/3165H01J2201/319H01J2329/8625
    • A flat panel display of a field emission type having a triode (three terminal) structure and useful as a device for displaying visual information is disclosed. The display includes a plurality of corresponding light-emitting anodes and field-emission cathodes, each of the anodes emitting light in response to emission from each of the corresponding cathodes, each of the cathodes including a layer of low work function material having a relatively flat emission surface which includes a plurality of distributed localized electron emission sites and a grid assembly positioned between the corresponding anodes and cathodes to thereby control emission levels to the anodes from the corresponding cathodes. In the preferred embodiment of the invention, the layer of low work function material is amorphic diamond film. The grid assembly includes a conductive layer deposited between the plurality of anodes and cathodes and over interstices between the cathodes, the conductive layer having apertures therein, the cathodes aligned with, and of the same size as, the apertures.
    • 公开了一种具有三极管(三端子)结构的场发射型平板显示器,并且可用作显示视觉信息的装置。 显示器包括多个对应的发光阳极和场发射阴极,每个阳极响应于每个相应阴极的发射而发光,每个阴极包括具有相对平坦的低功函数材料层 发射表面,其包括多个分布的局部电子发射位点和位于相应阳极和阴极之间的栅格组件,从而控制来自相应阴极的阳极的发射水平。 在本发明的优选实施例中,低功函数材料层是非晶金刚石膜。 栅格组件包括沉积在多个阳极和阴极之间的导电层以及阴极之间的间隙,导电层在其中具有孔,阴极与孔对准并具有与孔相同的尺寸。