JPH0421049U

JPH0421049U -

Info

Publication number: JPH0421049U
Application number: JP6169490U
Authority: JP
Priority date: 1990-06-13
Filing date: 1990-06-13
Publication date: 1992-02-21

Description

[Brief explanation of the drawing]

第１図ａは本考案の第１実施例の断面図、第１
図ｂは第１図ａの−切断線における断面図、
第２図ａは同第２実施例の断面図、第２図ｂは第
２図ａの−切断線における断面図、第３図は
電界放出形陰極の断面図である。１０，３０……蛍光表示装置、１１，３１……
気密外囲器、１８，３８……電界放出形陰極、２
０，４０……画素、２１，４１……支持体、Ｒ，
Ｇ，Ｂ，Ｆ……蛍光体層。 Figure 1a is a sectional view of the first embodiment of the present invention;
Figure b is a sectional view taken along the - section line of Figure 1 a;
FIG. 2a is a sectional view of the second embodiment, FIG. 2b is a sectional view taken along the - cutting line of FIG. 2a, and FIG. 3 is a sectional view of the field emission cathode. 10,30... fluorescent display device, 11,31...
Airtight envelope, 18, 38... Field emission cathode, 2
0,40...Pixel, 21,41...Support, R,
G, B, F...phosphor layer.

Claims

[Claims for Utility Model Registration] 1 Field emission cathodes are arranged in a matrix on a first inner surface of the airtight envelope, and a second inner surface opposite to the first inner surface emits light of different colors. In a fluorescent display device in which a plurality of pixels each having a plurality of types of phosphor layers are arranged, and the color of the pixel is selected by driving the field emission cathode, an airtight space is provided between each phosphor layer of each pixel. A fluorescent display device characterized in that a light-absorbing color support is provided to support external pressure applied to an envelope. 2 Field emission type cathodes are arranged in a matrix on a first inner surface of the airtight envelope, and a plurality of field emission cathodes each having a phosphor layer of the same emission color are disposed on a second inner surface opposite to the first inner surface. In a fluorescent display device in which pixels are arranged and each pixel is selected by the field emission cathode, an absorbing colored support that supports external pressure applied to the airtight envelope is arranged between each pixel. A fluorescent display device characterized by: