US 7,071,607 B2 · Display device having a large number of cathode lines

Abstract

The present invention provides a display device which can sufficiently ensure spaces for mounting distance holding members 5 when the distance holding members 5 are mounted, can facilitate the assembling and can realize the electron emission characteristics of high performance. At least two different types of gaps b, c (b<c) are provided among cathode lines 2 (2R, 2G, 2B) and the distance holding members 5 are mounted at portions of the gaps c having a larger size whereby the space for mounting the distance holding members 5 can be sufficiently ensured.

Claims12

Dependent claims

A display device in which a back substrate having a large number of cathode lines which extend in one direction and are arranged in parallel in another direction which crosses one direction formed on an inner surface thereof and a front substrate having anodes and phosphors formed on an inner surface thereof are arranged to face each other in an opposed manner with a given distance therebetween, wherein

the large number of cathode lines define at least two different types of gaps x1, x2 (gap x1>gap x2) between the large number of cathode lines formed on the inner surface of the back substrate,
distance holding members which define the distance between the back substrate and the front substrate are provided in at least some of the gaps x1,
a plurality of cathode lines are formed into groups and the gap between the groups which are arranged close to each other is set larger than the gap between the cathode lines belonging to the same group, and
the cathode lines are extended in one direction in a zigzag pattern and the gap between the neighboring groups is displaced in the direction which crosses the extending direction of the cathode lines corresponding to the zigzag pattern of the cathode lines.

1 more element

a large number of plate-like control electrodes are formed such that the plate-like control electrodes are arranged close to the cathode lines, extend in another direction, are arranged in parallel in one direction, and have electron passing holes formed therein,
the large number of cathode lines define at least two different types of gaps x1, x2 (gap x1>gap x2) between the large number of cathode lines formed on the inner surface of the back substrate,
a plurality of cathode lines are formed into each one group and the gap between the cathode lines belonging to the groups which are arranged close to each other is the gap x1, and
the plate-like control electrodes include first protrusions in at least some of the gaps x1, wherein the first protrusions approach closer to the back substrate than regions of the plate-like control electrodes where the electron passing holes are formed.

1 more element

Dependencies are inferred from the claim text.

Display device having a large number of cathode lines

Life of this patent

Display device having a large number of cathode lines

Life of this patent

Abstract

Claims12