公开(公告)号：US20040100181A1

公开(公告)日：2004-05-27

申请号：US10671626

申请日：2003-09-29

Applicant: Futaba Corporation

Inventor： Takuya Hamada ,  Masahiro Kato ,  Tomohiro Yamada ,  Kazunori Kitagawa ,  Hitoshi Toki

IPC: H01J001/62 ,  H01J063/04

CPC classification number: H01J1/63 ,  C09K11/55 ,  C09K11/595 ,  C09K11/703 ,  C09K11/773 ,  C09K11/7737 ,  C09K11/7771 ,  C09K11/7777 ,  C09K11/7784 ,  C09K11/7789 ,  C09K11/7795

Abstract: In a fluorescent display device wherein light is emitted by impinging a low speed electron beam on a phosphor layer formed on an anode, the phosphor layer comprises a compound containing W and/or a compound containing P, K and/or Na. The compound containing P, K and/or Na may be a compound selected from the group consisting of K3PO4, P2O5 and Na2SiO3, the compound being added in an amount of 0.01 to 10.00 wt % to the phosphor layer, to provide a higher luminance residual ratio and a higher high temperature exposure characteristic than those of a convention fluorescent display device.

Abstract translation: 在通过在形成在阳极上的荧光体层上照射低速电子束而发光的荧光显示装置中，荧光体层包括含有W和/或含有P，K和/或Na的化合物的化合物。 含有P，K和/或Na的化合物可以是选自K 3 PO 4，P 2 O 5和Na 2 SiO 3的化合物，该化合物的添加量相对于荧光体层为0.01至10.00重量％，以提供更高的亮度残留 比率和比常规荧光显示装置的高的温度曝光特性。