公开(公告)号：EP0985222A1

公开(公告)日：2000-03-15

申请号：EP98928822.0

申请日：1998-05-27

Applicant: Candescent Technologies Corporation

Inventor： HAVEN, Duane, A. ,  BARTON, Roger, W. ,  SPINDT, Christopher, J. ,  KNALL, N., Johan ,  OBERG, Stephanie, J.

IPC: H01J31/12 ,  H01J1/30 ,  H01J19/24

CPC classification number: H01J3/022 ,  H01J9/148 ,  H01J29/467

Abstract: An electron-emitting device contains an electron focusing system (37 or 37A) formed with a base focusing structure (38 or 38A) and a focus coating (39 or 39A) that penetrates, preferably only pathway, into a focus opening (40) extending through the base focusing structure. The focus coating, normally of lower resistivity than the base focusing structure, is typically formed by an angled deposition technique. An access conductor (106 or 106A) is preferably electrically coupled to the lower surface of the focus coating. A potential for controlling the focusing of electrons that travel through the focus opening is provided to the focus coating via the access conductor.

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.

公开(公告)号：EP0862785A1

公开(公告)日：1998-09-09

申请号：EP96942041.0

申请日：1996-11-20

Applicant: Candescent Technologies Corporation

Inventor： SPINDT, Christopher, J. ,  FIELD, John, E. ,  HAVEN, Duane, A.

IPC: H01J29 ,  H01J9 ,  H01J31

CPC classification number: H01J29/327 ,  H01J9/242 ,  H01J29/085 ,  H01J29/864 ,  H01J31/127 ,  H01J2329/8625 ,  H01J2329/863 ,  H01J2329/8665

Abstract: A flat panel display is disclosed which includes a faceplate with a faceplate interior side, and a backplate including a backplate interior side in an opposing relationship to the faceplate interior side. Side walls are positioned between the faceplate and the backplate. The side walls, faceplate and backplate form an enclosed sealed envelope. A plurality of phosphor subpixels are positioned at the faceplate interior side. A plurality of field emitters are positioned at the backplate interior side. The field emitters emit electrons which strike corresponding phosphor subpixels. A plurality of scattering shields surround each phosphor subpixel and define a subpixel volume. The scattering shields reduce the number of scattered electrons exiting from their corresponding subpixel volume. This reduces the number of scattered electrons from charging internal insulating surfaces in the envelope, as well as striking the non-corresponding phosphor subpixels.

Abstract translation: 公开了一种平板显示器，其包括具有面板内侧的面板和背板，背板包括与面板内侧成相对关系的背板内侧。 侧壁位于面板和背板之间。 侧壁，面板和背板形成封闭的密封信封。 多个荧光体子像素位于面板内侧。 多个场致发射体位于背板内侧。 场致发射体发射撞击相应荧光体子像素的电子。 多个散射屏蔽件围绕每个荧光体子像素并限定子像素体积。 散射屏蔽减少了从其对应的子像素体积离开的散射电子的数量。 这减少了从外壳内部绝缘表面充电的散射电子的数量，以及撞击不对应的荧光体子像素。