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    Field emitter for flat panel display
    161.
    发明公开
    Field emitter for flat panel display 失效
    场发射器阵列，用于平板显示装置

    公开(公告)号：EP0739022A3

    公开(公告)日：1997-01-22

    申请号：EP96302621.6

    申请日：1996-04-15

    Applicant: Hewlett-Packard Company

    Inventor： Kue, Huel-Pel

    IPC: H01J3/02 ,  H01J1/30

    CPC classification number: H01J3/022 ,  H01J2201/30423 ,  H01J2201/319

    Abstract: A field emission device (100) including a substrate (130), an emitter layer (106), a spacer layer (104) and a gate layer (102). In one preferred embodiment, the emitter layer (106) is made of a resistive material, and has a side end (120) that has an edge (122). The spacer layer (104) is on and over only a portion of the emitter layer (106) to expose the edge (122). The gate layer (102), on the spacer layer (104), also has a side end (128) that is tapered to form a wedge (129) with an edge. In one application, the device (100) is used in a flat panel display (90), with a screen (124). The screen (124) is at a selected positive voltage and is positioned above the gate layer (102). When a selected potential difference is applied between the emitter layer (106) and the gate layer (102), an electron-extraction field is established between the edge (132) of the gate layer (102) and the edge (122) of the emitter layer (106) to extract electrons from the edge (122) of the emitter layer (106). Then, the electrons are attracted to the screen (124). The wedge (129) reduces the amount of electrons collected at the gate and increases the efficiency of the device. The resistive nature of the emitter layer (106) enhances the uniformity of the electrons emitted along the edge (122) of the emitter layer (106).

    VERTICAL MICROELECTRONIC FIELD EMISSION DEVICES AND METHODS OF MAKING SAME.
    165.
    发明公开
    VERTICAL MICROELECTRONIC FIELD EMISSION DEVICES AND METHODS OF MAKING SAME. 失效
    垂直微电子场发射器件及其生产工艺。

    公开(公告)号：EP0630518A4

    公开(公告)日：1995-04-19

    申请号：EP93906238

    申请日：1993-03-03

    Applicant: MCNC

    Inventor： JONES GARY WAYNE ,  SUNE CHING-TZONG

    IPC: H01J1/304 ,  H01J9/02 ,  H01J29/04 ,  H01J29/87 ,  H01J31/12 ,  H01J1/30

    CPC classification number: H01J3/021 ,  H01J1/3042 ,  H01J9/025 ,  H01J2201/319

    Abstract: A vertical microelectronic field emitter (10) includes a conductive top portion (15) and a resistive bottom portion (16) in an elongated column (12) which extends vertically from a horizontal substrate (11). An emitter electrode (17) may be formed at the base of the column, and an extraction electrode (18) may be formed adjacent the top of the column. The elongated column reduces the parasitic capacitance of the microelectronic field emitter to provide high speed operation, while providing uniform column-to-column resistance. The field emitter may be formed by first forming tips (15) on the face of a substrate and then forming trenches (22) in the substrate (11) around the tips to form columns (12) in the substrate, with the tips lying on top of the columns. The trenches are filled with a dielectric (19) and a conductor layer (18) is formed on the dielectric. Alternatively, trenches may be formed in the face of the substrate (11) with the trenches defining columns (12) in the substrate. Then, tips (15) are formed on top of the columns. The trenches are filled with dielectric and the conductor layers is formed on the dielectric to form the extraction electrodes.

    ECRAN PLAT A MICROPOINTES PROTEGEES INDIVIDUELLEMENT PAR DIPOLE
    166.
    发明公开
    ECRAN PLAT A MICROPOINTES PROTEGEES INDIVIDUELLEMENT PAR DIPOLE 失效
    与EINSELNEN DIPOL防微点平面。

    公开(公告)号：EP0625277A1

    公开(公告)日：1994-11-23

    申请号：EP94900903.0

    申请日：1993-12-03

    Applicant: PIXEL INTERNATIONAL S.A.

    Inventor： GARCIA, Michel

    IPC: H01J31 ,  G09G3 ,  H01J1 ,  H01J29 ,  H01L29

    CPC classification number: H01J29/04 ,  H01J1/3042 ,  H01J2201/319

    Abstract: Un écran plat à micropointes protégées individuellement par dipôle est constitué d'une cathode émissive à émission de champ comportant des micropointes (12) protégées chacune individuellement grâce à un couplage électrique en série avec un dipôle (13) formé d'un transistor à effet de champ à déplétion, les dipôles étant réalisés de telle façon que l'on puisse modifier sur toutes les pointes en même temps le seuil de protection et le niveau du courant d'émission, en agissant uniquement sur la polarisation du substrat (14) commun de ces dipôles. Il concerne d'une façon générale le domaine des écrans d'affichage ou de visualisation.

    Display device
    168.
    发明公开
    Display device 失效
    显示设备

    公开(公告)号：EP0589523A1

    公开(公告)日：1994-03-30

    申请号：EP93202700.6

    申请日：1993-09-17

    Applicant: Philips Electronics N.V.

    Inventor： Harberts, Dirk Willem ,  Kuijk, Karel Elbert ,  Horne, Remco ,  van Veen, Gerardus Nicolaas Anne ,  Bechtel, Hans-Helmut

    IPC: H01J31/12

    CPC classification number: G09G3/22 ,  G09G2300/08 ,  H01J31/127 ,  H01J2201/319

    Abstract: By incorporating two-pole circuits (13) as switching elements in a picture display device based on field emission, the emission (and hence the picture intensity) is substantially defined by the charge of a capacitance (15) associated with a part of a pixel (8). Charge-controlled drive leads to a more accurate adjustment than the voltage-controlled drive used until now and leads to lower drive voltages, less power consumption and a longer lifetime of the phosphors used in the display device.

    Abstract translation: 通过在基于场发射的图像显示装置中结合两极电路（13）作为开关元件，发射（以及由此的图像强度）基本上由与像素的一部分相关联的电容（15）的电荷 （8）。 电荷控制驱动器导致比迄今为止使用的电压控制驱动器更精确的调整，并导致显示装置中使用的荧光粉更低的驱动电压，更低的功耗和更长的寿命。

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