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    CIRCUIT AND METHOD FOR CONTROLLING THE BRIGHTNESS OF AN FED DEVICE
    111.
    发明公开
    CIRCUIT AND METHOD FOR CONTROLLING THE BRIGHTNESS OF AN FED DEVICE 失效
    电路及方法调节亮场发射显示器件

    公开(公告)号：EP1005689A1

    公开(公告)日：2000-06-07

    申请号：EP98924960.2

    申请日：1998-05-28

    Applicant: Candescent Technologies Corporation

    Inventor： HANSEN, Ronald, L.

    IPC: G09G3/30 ,  G09G3/36

    CPC classification number: G09G3/22 ,  G09G3/2007 ,  G09G3/2011 ,  G09G3/2014 ,  G09G2310/0267 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/0626

    Abstract: A circuit (300) and method for controlling the brightness of a display screen (200) implemented using a flat panel field emission display (FED) screen (200). A brightness control circuitry (300) is positioned across the row drivers (220) for altering the applied voltage (212) to the rows (230) causing a change in brightness cross the FED screen (200). The applied voltage (212) can be pulse width modulated or amplitude modulated to alter the brightness of the FED screen (200). Within one FED screen (200) implementation, it is more efficient to alter the row voltage (212); however, in alternative embodiment of the present invention the column voltages (207) are modulated in amplitude or pulse width to alter the brightness of the FED screen (200). The brightness control circuitry (300) of the present invention can be made responsive to a manual brightness knob (520) or can be responsive to an ambient light sensor (580a, 580b).

    BLACK MATRIX WITH CONDUCTIVE COATING
    115.
    发明公开
    BLACK MATRIX WITH CONDUCTIVE COATING 失效
    与导电涂料黑底

    公开(公告)号：EP0975437A1

    公开(公告)日：2000-02-02

    申请号：EP98913107.3

    申请日：1998-03-25

    Applicant: Candescent Technologies Corporation

    Inventor： DRUMM, Paul, M.

    IPC: B05D5/12 ,  G03C5/00 ,  G09G3/20 ,  G09G3/30 ,  C23C16/00

    CPC classification number: H01J29/085 ,  G02F1/133512 ,  G03F7/0035 ,  H01J9/2278 ,  H01J2329/00

    Abstract: A method for forming a conductively coated matrix structure for separating rows and columns of sub-pixels (106) on the faceplate (104) of a flat panel display device. One embodiment deposits a photoresistive material (108) over the interior surface (102) of a faceplate having a non-conductive opaque matrix structure (100) formed thereon, and into sub-pixel regions separated by the matrix structure. The photoresistive material is dried and exposed to light (112) in the sub-pixel regions. After unexposed photoresistive material (110) is removed, a layer of aluminum is evaporated onto the interior surface of the faceplate such that the matrix structure and the exposed layer of photoresistive material in the sub-pixel regions is coated with conductive aluminum. Next, an etchant is applied to the exposed photoresistive material disposed in the sub-pixel regions, removing the exposed photoresistive material and the overlying Al layer from the sub-pixel regions, such that the conductive Al layer remains only on the matrix structure, and does not cover the sub-pixel regions.

    METHOD FOR CREATING A COLOR FILTER LAYER ON A FLAT PANEL DISPLAY SCREEN STRUCTURE
    116.
    发明公开
    METHOD FOR CREATING A COLOR FILTER LAYER ON A FLAT PANEL DISPLAY SCREEN STRUCTURE 失效
    用于生产彩色滤光层上的平面显示结构

    公开(公告)号：EP0968445A1

    公开(公告)日：2000-01-05

    申请号：EP98905033.1

    申请日：1998-02-10

    Applicant: Candescent Technologies Corporation

    Inventor： DRUMM, Paul, M.

    IPC: G02B5/20

    CPC classification number: G02B5/201 ,  G03F7/0007

    Abstract: A method for creating a color filter on a display screen that allows better and more efficient adhesion of color pigment crystals to the screen display structure. In one embodiment, the present invention creates a color filter on a glass substrate having a pixel-defining structure. The present embodiment first creates a color filter slurry by mixing a polyvinyl alcohol solution with a color crystal pigment. The color filter slurry is then applied onto the interior surface of the display screen. The slurry is then dried. The dried color filter slurry is then exposed to an UV light from the exterior side of the display screen. The UV light exposes the color filter slurry through a photomask and through the display screen. The excess layer of color filter slurry is then removed, leaving behind a color filter of desired transmission wavelength such that light having similar wavelength are substantially transmitted and light of wavelengths different from said color pigment crystals are substantially filtered out by absorption.

    METHOD OF STRENGTHENING FLAT PANEL DISPLAY AND ASSOCIATED GETTERED DEVICE
    117.
    发明公开
    METHOD OF STRENGTHENING FLAT PANEL DISPLAY AND ASSOCIATED GETTERED DEVICE 失效
    方法平板显示器的加强其平板显示器

    公开(公告)号：EP0946960A1

    公开(公告)日：1999-10-06

    申请号：EP97952426.0

    申请日：1997-12-22

    Applicant: Candescent Technologies Corporation

    Inventor： SLUSARCZUK, Marko, M., G. ,  HAVEN, Duane, A. ,  CURTIN, Christopher, J. ,  FAHLEN, Theodore, S.

    IPC: G02F1 ,  G09F9 ,  H01J5 ,  H01J9 ,  H01J17 ,  H01J29 ,  H01J31

    CPC classification number: H01J29/94 ,  H01J9/241 ,  H01J29/86 ,  H01J31/123 ,  H01J2209/385 ,  H01J2217/49264

    Abstract: A flat-panel device is fabricated by a process in which a pair of plate structures (40 and 42) are sealed along their interior surfaces (40A and 42B) to opposite edges (44A and 44B) of an outer wall (44) to form a compartment. Subsequently, exterior support structure (64) is attached to the exterior surface of one of the plate structures (40) to significantly increase resistance of the compartment to bending. Exterior support structure (66) is normally likewise attached to the exterior surface of the other plate structure (42) after the sealing operation. The compartment is then typically pumped down to a high vacuum through a suitable pump-out port (46) and closed. By providing the exterior support structure at such a relatively late stage in the fabrication process, the need for using spacers to support the device against external forces is eliminated or substantially reduced while simultaneously avoiding severe fabrication difficulties that arise in attaching the exterior support structure before the sealing operation.

    ELECTROCHEMICAL REMOVAL OF MATERIAL, PARTICULARLY EXCESS EMITTER MATERIAL IN ELECTRON-EMITTING DEVICE
    119.
    发明公开
    ELECTROCHEMICAL REMOVAL OF MATERIAL, PARTICULARLY EXCESS EMITTER MATERIAL IN ELECTRON-EMITTING DEVICE 失效
    材料特别是关于液体EMITTERENDEM材料以电子发射终端设备电化学拆除

    公开(公告)号：EP0885452A1

    公开(公告)日：1998-12-23

    申请号：EP97916717.0

    申请日：1997-03-05

    Applicant: Candescent Technologies Corporation

    Inventor： SPINDT, Christopher, J. ,  CHAKAROVA, Gabriela, S. ,  NIKOLOVA, Maria, S. ,  SEARSON, Peter, C. ,  HAVEN, Duane, A. ,  KNALL, Nils, Johan ,  MACAULAY, John, C. ,  BARTON, Roger, W.

    IPC: B81C1 ,  C25F3 ,  H01J9

    CPC classification number: H01J9/025

    Abstract: An electrochemical technique is employed for removing certain material from a partially finished structure without significantly chemically attacking certain other material of the same chemical type as the removed material. The partially finished structure contains a first electrically non-insulating layer (52C) consisting at least partially of first material, typically excess emitter material that accumulates during the deposition of the emitter material to form electron-emissive elements (52A) in an electron emitter, that overlies an electrically insulating layer (44). An electrically non-insulating member, such as an electron-emissive element, consisting at least partially of the first material is situated at least partly in an opening (50) extending through the insulating layer. With the partially finished structure so arranged, at least part of the first material of the first non-insulating layer is electrochemically removed such that the non-insulating member is exposed without significantly attacking the first material of the non-insulating member.

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