JPH01130452A - display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a display device used in television receivers, computer terminal displays, and the like.

Prior Art - FIG. 4 shows a partially sectional perspective view of a conventional display device. The display device 101 includes a vacuum envelope 102, a back electrode 103, a plurality of cathodes 104, and a plurality of metal plate electrodes 1 stacked together via a unitized insulating spacer 105.
06 and a unitized electrode assembly 107. The vacuum envelope 102 includes a front plate 108, a back plate 109 formed of a metal plate, and the front plate 108 and the back plate 1.
A side wall 110 surrounding the outer periphery and a reinforcing side wall 111 are airtightly fixed to each other. however,
Exhaust pipes and external terminals are omitted. In the display device 1o1, the electron beam generated from the cathode 104 is
The electron beam passes through the plurality of electron beam passing holes 106a formed in the metal plate electrode 106 and the electrode assembly 107, and then passes through the front plate 10.
The image is displayed by colliding with and emitting light onto a screen 112 formed on the inner surface of the screen 8.

The detailed configuration of the conventional electrode structure 107 is shown in FIGS.
As shown in the figure. The electrode assembly 107 includes a connecting plate 113, a support wall 114, and a pair of regulating side plates 115a and 115b. The support wall 114 includes a support wall substrate 118, a pair of first electrode plates 117a and 117b, a pair of second electrode plates 118a and 118b, and a plurality of needle-like struts 119. A pair of first electrode films 120a and 120b (12
0b is the back surface of 120a (C is formed) and a pair of second electrode films 121a and 121b (121b is 12
It is formed on the back surface of 1a. , a pair of regulating side plates 115
a and 115b are first reference blocks 122a and 122b and second reference blocks 123a and 12
3b, connecting members 124a and 124b, end support plates 126a and 125b, and electrode assembly reference hole 126a.
The first electrode structure reference plate 127a is formed with an electrode structure reference plate 127a, and the second electrode structure reference plate 127b is formed with an electrode structure reference elongated hole 126b. First reference block 1
22a and 122b and a second reference block 123a
and 123b have regulation grooves 128a and 128b, respectively.
, 129a and 129b are formed at predetermined positions. so that the regulation grooves 128a and 128b and 129a and 129b are arranged at predetermined positions with respect to the electrode assembly reference hole 126a and the electrode assembly reference elongated hole 126b,
The first reference blocks 122a and 122b, the second reference blocks 123a and 123b, and the connecting member 12
4a and 124b and end support plates 125a and 12
5b, a first electrode structure reference plate 127a, and a second electrode structure reference plate 127b.

A pair of regulation side plates 116a and 116b are placed in a predetermined position by a jig (not shown), and the support wall 114 is aligned with predetermined regulation grooves 128a and 128b, 129a and 129a.
9b, and the support wall 114 is arranged so that the end surfaces 116a and 116b of the support wall substrate 116 on the front plate 108 side are in contact with the end support plates 12+5a and 125bi. Here, a pair of first electrode plates 117a and 117b,
A pair of second electrode plates 118a and 118b are inserted into first reference block 12 when inserting support wall 114 into regulation grooves 128a and 128b and 129a and 129b.
The dimensions of the support wall substrate 116 are also made small so as not to hit the reference blocks 2a and 122b and the second reference blocks 123a and 123b.

Next, connect the connecting plate 109 to the back plate 1091 of the supporting wall board 116.
Connecting plate 1
Both ends of the first reference blocks 122a and 122b are fixed by welding or the like.

The electrode groove body 107 configured in this manner is removed from the jig, and the electrode structure reference hole 126a and the electrode structure reference elongated hole 126b are inserted into the electrode structure reference bins 130a and 130b arranged on the front plate 108. . The electrode structure reference bins 130a and 130b are connected to the black line 13 of the cross section 17-7112 formed on the inner surface of the front plate 108.
1 at a predetermined position via reference stands 132a and 132b.

Electrode structure reference hole 126a and electrode structure reference elongated hole 126
b into the electrode structure reference bins 130a and 130b, the stain electrode structure 107 is placed in a predetermined position relative to the planocline 131 of the screen 112.

Problems to be Solved by the Invention In the conventional configuration, since the supporting wall substrate 116 is formed of an insulating material such as glass, a pair of first electrode films 120a and 120b and a pair of second electrode films are formed. Membranes 121a and 121
b, a pair of first electrode plates 117a and 117
Both sides of b are insulating surfaces 133a and 133b (133b
is the back surface of 133a) and insulating surfaces 134a and 134b
(134b is the back surface of 134a) is exposed. For example, in the illustrated configuration, the first electrode films 120a and 120b and the second electrode films 121a and 12
The potential difference with 1b is about 10 Kv. If the electron beam is not emitted, no discharge will occur, but if the electron beam is emitted, the insulating surface 133a.

133b, 134a, and 134b are charged seven times, and discharge occurs after a certain period of time. This makes it impossible to apply a predetermined voltage to each electrode, making it difficult to obtain a good image with high brightness.

Means for Solving the Problems The technical means of the present invention for solving the above problems is to provide a first regulating member and a second regulating member at both ends of a unitized electrode structure including at least a support wall. A pair of regulating side plates are disposed, and the first regulating member forms a regulating means on the electron beam generating means side of the supporting wall, a first reference block, a second reference block, and the first regulating member. and a connecting member for connecting and fixing a second reference block, and a regulating means on the front plate side of the support wall is formed in the second regulating member.

For production.

With the above configuration, it is possible to realize an electrode structure assembly method in which the support wall is placed in a predetermined position with the second restriction member as a reference, and then the first restriction member is placed in a predetermined position from both sides of the support wall. In particular, the length of the pair of first electrode plates of the support wall can be substantially the same as the length of the support wall substrate.

Embodiment FIG. 1 shows the configuration of an electrode structure of a display device according to an embodiment of the present invention, FIG. 2 shows a partial cross-sectional perspective view of the display device, and FIG. 3 shows a side view of the electrode structure of the display device. show. The display device 1° includes a vacuum envelope 2, a back electrode 3, and a plurality of cathodes 4.
, a plurality of metal plate electrodes 6 stacked with unitized insulating spacers 6 in between, and a unitized electrode structure 7. The vacuum envelope 2 includes a front plate 8,
A back plate 9 formed of a metal plate, a side wall 1o that surrounds the outer periphery between the front plate 8 and the back plate 9, and a reinforcing side wall 11 are airtightly fixed to each other. However, the exhaust pipe and the external terminal are not shown. Display device 1
The electron beam generated from the cathode 4 passes through the metal plate electrode 6
The electron beam passes through a plurality of electron beam passing holes 6a and an electrode assembly 7 formed in the front plate 8, and collides with and emits light onto a screen 12 formed on the inner surface of the front plate 8, thereby displaying an image.

The electrode structure 7 includes a connecting plate 13, a support wall 14, and a pair of regulating side plates 15a and 16b. The support wall 14 includes a support wall substrate 16 and a pair of first electrode plates 17a.
and 17b, and a pair of second electrode plates 18a and 18
b, and a plurality of needle-like supports 19. The pair of first electrical plates 17a and 17b are connected to the supporting wall substrate 16.
It is made up of the same length. The supporting wall substrate 16 includes a pair of first electrode films 20a and 20b (20b is formed on the back surface of 20a) and a pair of second electrode films 21.
a and 21 b (21 b is formed on the back surface of 21 a. A pair of regulating side plates 15 a and 16 b are connected to first regulating members 22 a and 22 b and second regulating member 23 a
and 23b. First regulating member 22
a and 22b are first reference blocks 24a and 2
4b, second reference blocks 25a and 2sb, and connecting members 26a and 26b.
7a and 27b, end support plates 28a and 28b, a first electrode structure reference plate 30a in which an electrode structure reference hole 29a is formed, and a second electrode structure reference plate 30a in which an electrode structure reference elongated hole 29b is formed. 30 b). Regulating grooves 31a and 31b and 32a and 32b are formed at predetermined positions in the first reference blocks 24a and 24b and the third reference blocks 27a and 27b, respectively. The first reference blocks 24a and 24b and the second reference block are arranged so that the regulation grooves 31a and 31b and 32a and 32b are arranged at predetermined positions with respect to the electrode assembly reference hole 29a and the electrode assembly reference elongated hole 29b. Blocks 26a and 2rsb and connecting members 26a and 26
The first regulating members 22a and 22b are comprised of third reference blocks 27a and 27b, end support plates 28a and 28b, and a first electrode structure reference plate 30.
A and second regulating members 23& and 23b are constituted by a second electrode structure reference plate 3ob, and first regulating members 22a and 22b and second regulating members 23a and 23b are further constituted.

The second regulating members 23a and 23b are jigs (not shown)
the support wall 14 is inserted into the predetermined regulation grooves 32a and 32b, and the end surfaces 16a and 16b of the support wall substrate 16 on the front plate 8 side are in contact with the end support plates 28a and 28b. A support wall 14 is arranged. Next, the support wall 1 on which the first regulating members 22a and 22b are arranged
Insert the predetermined regulating grooves 31a and 31b into the support wall 14 from both outsides of the first regulating members 22a and 22b.
are fixed to the second regulating members 23a and 23b, respectively.

Finally, the connecting plate 13 is arranged so as to be in contact with the end surface 16a of the nine back plates of the support wall substrate 16, and both ends of the connecting plate 13 are fixed to the first reference blocks 24a and 24b by means such as welding.

The electrode structure 7 configured in this way is removed from the jig, and the electrode structure reference pin 33a arranged on the front four-sided plate 8 is
and 33b, insert the electrode assembly reference hole 29a and the electrode assembly reference elongated hole 29b. The electrode structure reference pins 33a and ssb are mounted on the reference stand 3 at predetermined positions relative to the black line 34 of the screen 12 formed on the inner surface of the front plate 8.
5a and 3sb. By inserting the electrode assembly reference hole 29a and the electrode assembly reference elongated hole 29b into the electrode assembly reference pins 33a and 3sb, the stain pole assembly 7 is placed at a predetermined position with respect to the black line 34 of the screen 12.

Effects of the Invention According to the configuration of the present invention, the electrode assembly is assembled by arranging the support wall at a predetermined position with reference to the second regulation member, and then disposing the first regulation member at a predetermined position from both outsides of the support wall. A method is provided whereby the length of a pair of first electrode plates of a support wall is substantially the same as the length of the support wall substrate. Therefore, it is possible to eliminate the exposed portion of the insulating surface of the support wall, thereby making it possible to apply a predetermined voltage to each electrode, thereby making it possible to obtain a good image with high brightness.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an electrode assembly of a display device according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional perspective view of the display device, FIG. 3 is a side view of the electrode assembly of the display device, and FIG. 5 is an exploded perspective view of the electrode structure of the display device, and FIG. 6 is a side view of the electrode structure of the display device. 1... Display device, 2... Vacuum envelope,
3... Back electrode, 4... Cathode, 7
... Electrode structure, 8 ... Front plate, 12.
...Screen, 15a, 1sb...
...Regulation side plate, 16...Support wall, 22a, 22
b...First regulating member, 23a, 23b...
...Second regulating member, 24a, 24b...
First reference block, 26a, 2sb... Second reference block, 26a, 2eb-+-' connection member, 31a, 31b. 32a, 32b...Regulation groove. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
--Display device? ---Shinken Tato Enclosure - Poison, 3--One back electrode δ-Front plate/Z--Screen 3 Figure 4 Figure 5 Figure 5/3? α Figure 6 (ff8b)

Claims (1)

[Claims] A unit comprising at least an electron beam generating means and support walls arranged at predetermined intervals substantially perpendicular to the front plate in a vacuum envelope including a front plate having a screen formed on the inner surface, and including at least the support wall. A pair of regulating side plates consisting of a first regulating member and a second regulating member are arranged at both ends of the electrode structure, and the first regulating member regulates the electron beam generating means side of the support wall. It is composed of a first reference block forming a means, a second reference block, and a connecting member that connects and fixes the first and second reference blocks, and the second regulating member is connected to the support wall. A display device characterized in that a regulating means is formed on a face plate side.