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    Electroluminescent laminate with thick film dielectric
    108.
    发明公开
    Electroluminescent laminate with thick film dielectric 失效
    Elektrolumineszenter Verbundstoff mit Dickfilmdielektrikum

    公开(公告)号：EP0758836A2

    公开(公告)日：1997-02-19

    申请号：EP96203180.3

    申请日：1993-05-06

    Applicant: WESTAIM TECHNOLOGIES INC.

    Inventor： Wu, Xingwei ,  Stiles, James Alexander Robert ,  Foo, Ken Kok ,  Bailey, Philip

    IPC: H05B33/22 ,  H05B33/26 ,  H05B33/10 ,  H05B33/12

    CPC classification number: H05B33/28 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22 ,  H05B33/26 ,  Y10S117/904 ,  Y10S428/917 ,  Y10S438/94

    Abstract: A process is described of forming an electroluminescent (EL) display panel formed from an EL laminate having a phosphor layer (22) sandwiched between a front and a rear set of intersecting address lines (14,24), the rear address lines (12) being formed on a substrate (12) having sufficient rigidity to support the laminate and the phosphor layer being separated from the rear address lines by one or more dielectric layers (18,20); the process comprising the steps of: (a) providing a substrate formed with a plurality of through holes (32) patterned to be proximate the ends of the address lines to be subsequently formed; (b) forming a conductive path through each of the through holes in the substrate to provide for electrical connection of each address line, subsequently formed, to the voltage driving circuit (30); (c) forming the rear spaced address lines (14) on the substrate (12), one end of each line ending adjacent a through hole (32) and being electrically connected with the conductive path therethrough; (d) forming a dielectric layer (18,20) on the rear address lines (14); (e) forming the phosphor layer (22) above the dielectric layer: (f) optionally forming a transparent dielectric layer on the phosphor layer; and then (g) forming the front spaced address lines (24) on the underlying phosphor or transparent dielectric layer, one end of each line ending adjacent a through hole and being electrically connected with the conductive path therethrough.
    The invention also describes a method for laser scribing a pattern in a planar laminate (preferably an EL panel) having at least one overlying layer (e.g. a transparent layer for forming the front address lines (24)) and at least one underlying layer (e.g. a phosphor layer (22)); the method comprising: applying a focused laser beam on the overlying layer side of the laminate, said laser beam having a wavelength which is substantially unabsorbed by the overlying layer (24) but which is absorbed by the underlying layer (22), such that at least a portion of the underlying layer (22) is directly ablated and the overlying layer (24) is indirectly ablated throughout its thickness (thereby forming individual front address lines (24)).

    Abstract translation: 描述了形成由EL层叠体形成的电致发光（EL）显示面板的方法，该层压体具有夹在前后一组交叉地址线（14,24）之间的荧光层（22），后地址线（12） 形成在具有足够的刚度以支撑所述层压体的基底（12）上，并且所述荧光体层通过一个或多个介电层（18,20）与所述后地址线分离; 所述方法包括以下步骤：（a）提供形成有多个通孔（32）的基板，所述多个通孔（32）图案化以接近要随后形成的地址线的末端; （b）形成穿过基板中每个通孔的导电路径，以提供随后形成的每个地址线与电压驱动电路（30）的电连接; （c）在衬底（12）上形成后隔开的地址线（14），每条线的一端与通孔（32）相邻并且与导电通路电连接; （d）在后地址线（14）上形成电介质层（18,20）; （e）在电介质层上形成荧光体层（22）：（f）可选地在荧光体层上形成透明电介质层; 然后（g）在下面的荧光体或透明电介质层上形成前面分开的地址线（24），每条线的一端与通孔相邻并且与导电通路电连接。 本发明还描述了一种用于在具有至少一个上覆层（例如，用于形成前地址线（24）的透明层）的平面层压板（优选EL板）中激光刻划图案的方法和至少一个下层（例如， 磷光体层（22））; 所述方法包括：将聚焦激光束施加在所​​述层压体的覆盖层侧上，所述激光束具有基本上未被所述上覆层（24）吸收但被所述下层（22）吸收的波长，使得在 下层（22）的至少一部分被直接烧蚀，并且覆盖层（24）在整个厚度上被间接消融（从而形成单独的前地址线（24））。

    Electroluminescent laminate with thick film dielectric
    109.
    发明公开
    Electroluminescent laminate with thick film dielectric 失效
    厚膜电介质的电致发光层压板

    公开(公告)号：EP1182909A2

    公开(公告)日：2002-02-27

    申请号：EP01202627.4

    申请日：1993-05-06

    Applicant: WESTAIM TECHNOLOGIES INC.

    Inventor： Wu, Xingwei ,  Stiles, James Alexander Robert ,  Foo, Ken Yok ,  Bailey, Philips

    IPC: H05B33/22 ,  H05B33/10 ,  H05B33/26 ,  H05B33/12

    CPC classification number: H05B33/28 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22 ,  H05B33/26 ,  Y10S117/904 ,  Y10S428/917 ,  Y10S438/94

    Abstract: An electroluminescent laminate is provided that comprises:

    a planar phosphor layer (22);
    a front and a rear planar electrode (14,24) on either side of the phosphor layer;
    a planar dielectric layer, which is preferably composed of a thick layer (18) and a thin layer (20), between the rear electrode and the phosphor layer, the dielectric layer being formed from sintered ceramic material such that the dielectric layer provides a dielectric strength S which is greater than about 1.0 X 106 V/m and a dielectric constant such that the ratio of the dielectric constant of the dielectric layer to that of the phosphor layer is greater than about 50:1, the dielectric layer having a thickness sufficient to prevent dielectric breakdown during operation as determined by the equation d2 = V/S, wherein d2 is the thickness of the dielectric layer and V is the maximum applied voltage, the dielectric layer forming a surface adjacent the phosphor layer which is sufficiently smooth that the phosphor layer illuminates generally uniformly at a given excitation voltage, and wherein the dielectric layer is either in contact with the phosphor layer or spaced apart from it by at least one additional layer that is itself in contact with the phosphor layer and wherein the layer that is in contact with the phosphor layer is compatible with the phosphor layer.

    Abstract translation: 提供了一种电致发光叠层，其包括：平面荧光层（22）; 在所述荧光体层的任一侧上的前部和后部平面电极（14,24） 在后电极和磷光体层之间的平面介电层，其优选地由厚层（18）和薄层（20）组成，介电层由烧结陶瓷材料形成，使得介电层提供介电层 大于约1.0×10 6 V / m的强度S和介电常数使得介电层的介电常数与磷光体层的介电常数之比大于约50:1，所述介电层具有足够的厚度 为了防止在由等式d2 = V / S确定的操作期间的介质击穿，其中d2是介电层的厚度并且V是最大施加电压，介电层形成邻近磷光体层的表面，该表面足够光滑， 磷光体层在给定的激励电压下通常均匀地照射，并且其中介电层或者与荧光体层接触或者与荧光体层隔开1° 它自身与磷光体层接触，并且其中与磷光体层接触的层与磷光体层相容。

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