公开(公告)号：US20040007960A1

公开(公告)日：2004-01-15

申请号：US10347310

申请日：2003-01-21

Applicant: Hitachi, Ltd.

Inventor： Masaaki Komatsu ,  Masatoshi Shiiki ,  Ryo Inoue

IPC: H01J001/62 ,  H01J063/04

CPC classification number: C09K11/7789 ,  C09K11/584 ,  H01B1/08 ,  H01J1/63 ,  H01J1/70 ,  H01J2329/00

Abstract: The present invention relates to a field-emission display having a faceplate formed with a phosphor layer and means irradiating an electron beam onto the phosphor layer in order to improve the characteristic of life of the device. The feature of the present invention is in the structure of a phosphor layer. The phosphor layer is expressed by a general formula: ZnS: M, Al where M is an activator of at least one of Cu, Ag and Au; and Al is a coactivator, in which the concentration of Al is higher than that of M. According to the present invention, the electrification characteristic of the phosphor is improved for lower resistance. The defect concentration of the surface of the phosphor is reduced. The filed-emission display which can realize improvement in the characteristic of life which has not been solved in the prior art can be made.

Abstract translation: 本发明涉及具有形成有荧光体层的面板和将电子束照射到荧光体层上的装置的场致发射显示器，以便提高装置的使用寿命。 本发明的特征在于荧光体层的结构。 磷光体层由以下通式表示：ZnS：M，Al，其中M是Cu，Ag和Au中的至少一种的活化剂; 并且Al是Al的浓度高于M的共活化剂。根据本发明，为了降低电阻，改善了荧光体的带电特性。 荧光体表面的缺陷浓度降低。 可以进行能够实现现有技术尚未解决的寿命特性的场致发射显示。