JPS6250883A - Fluorescent indicator tube - 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 high-intensity fluorescent display tube that is two-dimensionally arranged in large numbers in, for example, a large-sized display device.

[Summary of the invention]

The present invention provides a high-intensity fluorescent display tube that serves as a display cell when a display device is constructed by arranging a large number of display cells two-dimensionally. The structure is designed to prevent reflection of external light and improve contrast and meat quality.

[Conventional technology]

For example, a fluorescent display tube having a so-called phosphor trio consisting of three color phosphor layers of red, edge and blue is used as a unit cell, and a large number of these light emitting display cells are arranged to obtain a large screen. Large display devices have been proposed.

In this display device, a plurality of display cells are combined to form one unit, and a large number of these units are combined.

[Problem that the invention seeks to solve]

When such a display device is installed outdoors or indoors, if the surface of the display cell is made of a highly reflective surface such as glass, it will be affected by the reflection of external light (i.e.,
Contrast and image quality are degraded (by external light reflected from the display surface of the device entering the audience's eyes).

In view of this problem, the present invention provides a fluorescent display tube that can prevent deterioration in contrast and image quality due to reflection of external light.

[Means for solving problems]

The present invention comprises a cathode, a first grid G1 and a second grid G2, and a fluorescent display segment (14R) (14G).
) (14B) The surface of a fluorescent display tube or display cell (71) (or (71'), (10)) is subjected to anti-reflection matte treatment.

The display cell has a plurality of fluorescent display segments (14R) (14G) (14B) made of phosphor layers of three colors, red, edge and blue, adhered to the inner surface of the front panel of the glass body. Opposing each display segment are three cathodes (KR) (KG) (Ke) and a first grid (control electrode) (GIR), (GIG).

(Gzs) and a common second grid (acceleration electrode) (G2
), and the electron beam from each cathode (K) is irradiated onto the corresponding display segment, causing it to emit light. In this case, the first display cell is
As shown in FIG. 2 or FIG. 34 and FIG. 35, display cells (71) (7
1'), or a display cell (10) having a trio of phosphors as shown in FIGS. 67 and 68, etc. may be used. As for the matte treatment applied to the surface of the display cell, for example, as shown in Fig. 38 and Fig. 39, the glass
A cape-treated resin film (115) is attached to the surface of the front panel (11^). Other methods include etching the glass surface of the front panel (11^) to make it uneven, and spraying clear lacquer or depositing SiO2 on the glass surface of the front panel (IIA) to form an uneven surface. is Kuchi J Noh.

Then, a plurality of display cells (71) (or (71')
.

(10)) are combined to form one unit, and a display device is constructed by combining a large number of these units in an XY matrix.

[Effect]

When a large-sized display device (117) is configured as shown in FIG. 41 by applying matte treatment directly to the surface of the display cell, external light (11B) is diffusely reflected (11B') on the display surface.
), and the influence of external light is reduced on the audience (119) side. Therefore, deterioration in image contrast and meat quality is avoided.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1, 2, and 3 are partially cutaway front views showing a fluorescent display tube, that is, a unit display cell, according to the present invention;
A side view and a perspective view are shown.

In the figure, (11) shows the glass national sports stadium consisting of a front panel (IIA), a back panel (IIB), and a side panel (IIC). This glass national polity (11) is, for example, a front panel (IIA).
) is formed to a size of 41 cranes in height x 86 meters in width. In this glass frame (11), there are a plurality of sets of fluorescent display elements consisting of a fluorescent layer, that is, in this example, eight sets of so-called fluorescent trios (12) ((12a)).

(12b), (12c), (12d),
(12e).

(12f), (12g), (12h
)) and 8 corresponding to each of these phosphor trios (12).
set of electrode units (13) ((13a), (
13b), (13c), (13d) (13
e) , (13f) , (13g) , (
13h) ) are arranged facing each other.

Eight sets of phosphor trios (12) are formed by coating the inner surface of the front panel (11^) with a phosphor layer, and are arranged in two rows of 4 sets each, one above the other. Trio (12
) is the three fluorescent display segments of red light, green light, and blue light, that is, the fluorescent body 1! (14R), (14G)
.

(14B) is composed of °ζ. Specifically, as shown in Figure 8, a carbon layer (15), which is a conductive layer, is printed in a frame shape on the inner surface of the front panel (11^), and a red layer is printed corresponding to each empty space within the frame shape. Fluorescent material! (14R), green phosphor layer (14R), green phosphor layer (14R), green phosphor layer (14R),
G) and the phosphor layer (14B > is partially carbon layer (1
5) A metal back layer (16) made of aluminum, for example, is formed on the front surface by printing with an intermediate film interposed therebetween. In this case, in the phosphor trio (12), the red phosphor layer (14R) is arranged in the center, and the edge phosphor M (14G) and blue phosphor Itl (14B) are arranged at both ends, respectively. , are arranged in the same way in both rows (see FIG. 13). In addition, as shown in Figure 14, a green phosphor! (14G) and blue phosphor 1# (14B
) can also be arranged in reverse left and right for each - column.

Electrode units 1-(L3) are arranged on the rear panel (IIB) side so as to face each of the phosphor trios (12). This electrode unit 1-(13) consists of a phosphor trio (
12) Each red phosphor layer (14R), edge phosphor! (14G
) and three wire cathodes (K) ((KR)) facing the front light layer (14B).

(Ke), (KB)) and its wire cathode (K
The three first grids (01) ((GIR), (G
IG).

(GIB)), and three first grids (G1
), a second grid (G2) is arranged in common.

The specific assembly and structure of this electrode unit (13) are as shown in FIGS. 4 to 7. That is, as shown in FIG. 4, it has three rectangular openings (17), and each opening (
A pair of terminal pins (18a) and (17) are placed between each other.
An insulating substrate (19), for example, a ceramic base (19), is provided with the insulating substrate (18b) planted therethrough.

Figure 8-shaped conductive support pieces (20a) and (20b) are paired with the pair of terminal pins (18a) and (18b), respectively.
are commonly spot welded, i.e. one conductive support piece (
20a) are commonly spot welded to the three terminal pins (18a) of one row, and the conductive support piece (20b) of the other
are commonly spot welded to the three terminal pins (18b) of the other row, and then each wire cathode (Ke), (K
R) and (KB) are stretched. One support piece (20
a) is for fixing one end of the wire cathode (I()), and the other support piece (20b) is provided with a spring part (21) with a bent tip.
The other end of each wire cathode (K) is fixed to 21).

As a result, even if the wire cathode (K) stretches due to a rise in temperature, the stretch is absorbed by the spring portion (21) and the wire cathode (K) does not loosen. (22
) is a terminal led out from the support piece (20a). Each wire cathode CK) is formed, for example, by applying carbonate, which serves as an electron-emitting substance, to the surface of a tungsten heater.

Next, each first grid + (GIG) + (GI
R) (C1e) is supported at each opening (17) of the ceramic base (19). Each first grid (GIG).

(GtR), (Gts) are each wire cathode (K
ey.

(KR), (KB) are formed in a curved semi-cylindrical shape with cylindrical surfaces facing each other, and a large number of slits (
23) is provided, and openings (1
The leg portions (24) and (25) are provided with a width substantially equal to the width of the leg portion 7). Both legs (24) and (25) are inserted into the opening (17) of the ceramic base (19), but at this time, the legs (24) and (25) are inserted so as to be narrowed in opposite directions. Therefore, the force of both legs returning to their original positions after insertion causes both legs (24) and (25) to close to the opening (
It comes into pressure contact with the inner wall of 17), thereby providing temporary support. One leg (24) is long (and the other leg (25) is short to be used as a terminal, and when inserted into the opening (17), the one leg (24) is (17), and the other leg (25) passes through the opening (
17) It is made to stay within.

On the other hand, a national body (26) of an electrode unit is provided.

This national body (26) constitutes a part of the second grid (G2) and is made of conductive material, and is attached to each first grid (G2) in front.
1) Three openings (27) ((27G)
, (27R), (27B)), and a separator (2) partitioning the openings (27).
8) are integrally extended inward. This national polity (26)
is made by drawing and barrel-ground GT, making it difficult to generate electrical discharge. A common second grid (G2) is inserted into this national body (26). This second grid (
G2) is each first grid (GIG) (GIR),
(GIB), slit-shaped mesh portions (29G) and (29R) are located at the same corresponding positions as the slits (23) of the first grid (G1).

(29B). In this case, the mesh parts (29G), (29R), (29B
), the separator (28) is inserted between the grooves (30
) is provided. And each slit part (29G)
, (29R).

(29B) is the opening (27G), (27R),
The second grid (G2) faces the national polity (27B) and inserts the separator (28) into the groove (30).
). This second grid (G2) is the national polity (-
It is spot welded to a part of the national polity (26) and is mechanically and electrically connected to the national polity (26).
26) will also serve as the second grid (G2).

Next, a pair of insulating separators (31A) and (31
B) is inserted. The inner surfaces of the separators (31A) and (31B) have three grooves (32) ((32G)) into which the side portions of the first grid (G1) can fit.

(32R), (32B)) are provided. (33) is a through hole. This separator (31^),
(31B) each have a hat in the gap between the wall of the national polity (26) and the separator (28) when inserted into the national polity (26).
A person is held in a pinched manner. Also a separator (31^
).

The upper end of (31B) abuts the second grid (G2).

Then, the wire cathode (K) and the first grid (G1) are attached to the ceramic base (26) with the second grid (G2) and separators (318) and (31B) assembled in this way. 17) is inserted into its base with the rear end surfaces of the separators (31^) and (31B) facing each other. At this time, each first grid (Gte)
, (Gia) and (GIB) are the grooves (32G) of the separators (31A) and (31B), respectively.
, (32R) and (32B). Each first grid (G1) thus has its legs (24).

(25) is inserted into the opening (17) of the ceramic base (19), and both sides of the first grid are fitted into the grooves (32) of the separators (318) and (31B), thereby positioning. done accurately.

In addition, the terminal (22), which is bent and lengthened from one support piece (20a) on which the wire cathode (K) is stretched, passes between the ceramic base (19) and the separator (31a) to the national polity (26). It is led out to the outside through the notch. Next, one of the retainer structures (34) made of conductive material
Two frame-shaped retainers (34^) are fitted into the national body (26), and the bent portion (34a) of the retainer (34A)
The ceramic base (19) is held by spot welding the electrode unit (13) shown in FIGS. 5 to 7 by spot welding the electrode unit (13) shown in FIGS.

The conductive retainer structure (34) has four parts as shown in FIG.
Each tape that can be inserted into the national body (26) of the electrode unit of the set ~ (348), (34B),
(34C) and (34D) are integrally connected to the tile by a conductive connecting part (35), and this connecting part (35) is configured to fit into the notch (95) of the national polity (26). . (36) is an attachment part that is spot welded to a lead frame (not shown), and (37) is an attachment part that is attached to the glass national body (11). Therefore, each of the second grids (G2) of the four sets of electrode units (13) are electrically commonly connected to each other by the conductive retainer structure (34).

On the other hand, each color phosphor IN of eight phosphor trios (12)
A separator structure (40) made of a conductive material as shown in FIG. 12 is arranged so as to surround (14R), (14G), and (li). This separate structure (40) prevents the electron beam from the wire cathode from hitting the first grid (G1) and the second grid (G2), so that secondary electrons from the electron beam do not emit light from the adjacent phosphor layer. a phosphor layer (14) to which the electron beam from each wire cathode (K) corresponds;
It serves as a function of spreading the electron beam so that the entire surface is irradiated with it, so-called a diffusion lens, and at the same time, it is used as a power supply means for applying a high voltage, for example, 8 KV, to each phosphor trio (12). This separator structure (4
0) is supported, for example, between the front panel (IIA) and the side panel (IIC) of the glass national body (11) during assembly, and is fixed by a glass frit. That is, this separator structure (40) has separator portions (41) partitioned into three such that each color phosphor layer is surrounded by each of the eight phosphor trios (12), and each separator portion (41) are integrally connected to each other via an electrode plate (42), and support claws (43) each protrude outward at the upper end.
is provided. Furthermore, an elastic bending piece (44) for positioning is cut and raised on the side of the separator structure (40).

Therefore, the Sebaretai structure (40) is replaced by the glass national polity structure (11).
When inserted into the side plate (IIC) of
4) is in contact with the side & (IIC) inner wall and the separator structure (
40) is held in place. Furthermore, a protrusion (45) (
(see Fig. 8), and this protrusion (45) stores the separator structure (40) in the side & (IIC).
When the front panel (IIA) is suspended and sealed on the IC), it just contacts the metal back J# (16) or the carbon layer (15). This allows the high voltage from the high voltage terminal or anode lead (46) to be applied to each phosphor trio (12).
) will be commonly supplied.

As shown in Fig. 8, the anode lead (46) to which high voltage is applied is connected at one end to the electrode plate (42) of the sepa1/- evening structure (40), and at the other end to the back of the glass national body (11). Exhaust pipe (tip-off pipe) attached to the panel (11B)
(47) to the outside. At this time, the anode lead (46) uses a Dumet wire (Cu alloy) wrapped in glass at the exhaust pipe (47). Therefore, airtightness between the anode lead (46) and the exhaust pipe (47) is maintained.

A high-pressure cover, that is, an insulating cylinder (101) for mechanically protecting the exhaust pipe (47) is fixed to the outside of the exhaust pipe (47) via a resin molding material (adhesive) (102). A surface pressure terminal washer (1) placed at the end of the body (101)
03) to which the anode lead (46) is electrically connected. In this case, the terminal washer (103) is the insulating cylinder (101).
), and a cross-shaped notch (105) is formed in the center, and the anode lead (46) is press-fitted through the center of this notch (105). The anode lead (46) and the terminal washer (103) are electrically connected to each other without soldering (see FIG. 9). Then, a connecting means (so-called socket) (107) connected to an external high voltage lead (106) extended from a high voltage power source (described later) is fitted into the insulating cylinder, and a spring (107) is attached to the terminal washer (103). 108)
An external lead (106) is electrically connected via the anode lead (46), and an anode voltage is supplied to the anode lead (46). The connecting means (107) includes a spring connected to an external high voltage lead (106), an engaging portion (109) that insulates and protects the spring from the outside, and engages with the outside of the insulating cylinder (101).
) for example, an insulating cap made of silicone rubber (11
0), and this insulating camp (110) can be attached to and detached from the insulating cylinder (101). (111
) is a resin molding material (
102) are air holes for accelerating curing. Also, washer (10
The inner wall of the recess (104) in which 3) is arranged is formed so that the diameter increases toward the end, and the spring (10B) is guided by this inclined inner wall to ensure reliable contact with the washer (103). be done. On the connecting means (107) side, the spring (1
0B) is positioned by a reduced diameter portion (112) within the cap (110). Anode lead like this (46)
Since the exhaust pipe (47) leading out is mechanically protected by the insulating cylinder (101), the mechanically weak exhaust pipe (47) will not be damaged even when connected to the external high voltage lead (106). . Furthermore, since the anode lead (46) and the external lead (106) are electrically connected by bringing the spring (10B) into contact with the terminal washer (103), the direct load on the anode lead (46) is reduced. Ru.

In addition, as shown in Figure 1O, a rising part (112) is provided on a part of the outer edge of the terminal washer (103), and an external lead (106) is soldered directly to the terminal, and the connecting part and insulating tube are The body (101) can also be covered with a resin molded body (113). However, in this case, external leads (
106) is provided with a socket (114) for connection to the high voltage power supply side.

Further, as shown in FIG. 11, the anode lead (46) is soldered to the terminal washer (103), and the terminal washer (103) is
03) via a spring (10B) to the external lead (1
06) can also be configured to be connectable. In the electrode unit (13), eight sets of electrode units (13a) to (13d) are fixed in four sets each by a common retainer structure (34), and then the lead frame (60
), and the mounting portion (36) of the retainer structure (34) and the lead frame (60) are spot welded. Then the terminal pin (18) of the wire cathode (K)
), the leg part (24) of the first grid (G1) and the retainer structure (3) on the electrode unit (1-3a) to (13d) side.
4) and the lead portions of corresponding predetermined lead frames are connected, for example, via lead wires (not shown). At this time, as described above, the second grid (G2) has four sets of electrode units (13a) to (13d) arranged in the horizontal direction.
) and the second grids (G2) of the four electrode units (13e) to (13h) are commonly connected by a retainer structure (34). Further, the first grid (G1) has two (I) arranged in each vertical direction.
Between the electrode units of M, that is, the electrode units (13a) and (1
3e), between electrode units (13b) and (13F), between electrode units (13c) and (13g), and between electrode units (13d) and (13h). That is, between the vertically arranged electrode units, the GIRs in the center are commonly connected, the rightmost (Gxg) comrades are 1111 connected, and the leftmost CGIG) comrades are commonly connected. Furthermore, each wire cathode (K) is connected in series in this example. In addition, in the phosphor trio (12), even when the green phosphor layer (14G) and the front light phosphor layer (14B) are arranged in reverse left and right for each column (as in the case of Fig. 14), the center The (GIR) comrades are commonly connected, and the rightmost (GIB)
and (GiG) are commonly connected, and (G 1e ) and (GIB) at the left end are commonly connected.

The leads of the wire cathode (K), the leads of the first grid (G1), and the leads of the second grid (G2) are connected to the back panel (11B) from the minus side of the glass national body (11).
and the lower end surface of the side &(llc) and led out to the outside.

(61F) is the wire cathode lead, (62G2
) is the lead of the second grid (G2) which is commonly connected between the electrode unit) (13e) to (13h), (63G2)
(64Gs) is the lead of the second grid (G2) which is commonly connected between the electrode units (13a) to (13d), and (64Gs) is the lead of the three first grids (G2) which are commonly connected between the electrode units (13a) and (13e). Grits (G lead, (85Gz)
) are the leads of the three first grids (G1) commonly connected between the electrode units (13b) and (13f), (66
G1) is electrode knee 1--/t (13c) and (13g
), the leads of the three first grids (G1) commonly connected between the electrode unit (13d) and (t at 67)
The three first grids (G1
) is the lead. The number of leads led out from the glass polka dot (11) is determined as appropriate depending on the design.

In addition, the electrode units (13a) to (13d) and the electrode unit (13) held by the retainer structure (34)
e) to (13h) are fixed by sandwiching the mounting parts (37) at both ends of the retainer structure (34) between the back spring (IIB) and the side plate (IIC) when the glass national body (II) is sealed. . In this case, since it is fixed only at both ends, there is a risk that the electrode units may be displaced from their predetermined positions due to warpage or inclination of the retainer structure (34) holding the four sets of electrode units. In order to prevent this, as shown in Fig. 15, a common L-shaped auxiliary member (68) is integrally provided on the sides of the four sets of electrode units, and both ends of this auxiliary member (68) are also attached. It can also be fixed between the rear panel (IIB) and the side 1 (Hc) via the portion (69). At this time, the auxiliary member (68) is made of a conductive material. This auxiliary member (68) prevents the retainer structure (34) from warping or tilting, thereby preventing displacement of the electrode unit I-(13). Further, as shown in FIG. 16, scattering of getter particles from the getter container (70) toward the fluorescent surface side is restricted. Further, the auxiliary member (68) is provided with the same potential as the second grid (G2), thereby serving to prevent discharge. That is, the anode electric field is prevented from seeping out to the low voltage side by the auxiliary member (68), and the anode voltage is applied to the separator structure (40) and each grid (G1) on the low voltage side.

Discharge between the (G2) lead and the cathode (K) lead is prevented.

Next, the operation of such a display cell will be explained. Each phosphor trio (
12) red, green and blue phosphor layers (14R) (14
G) (14B) is supplied with an anode voltage of, for example, about 8 KV through an anode lead (46).

Also, each first grid (GIR) (Gte) (Gl
A voltage of, for example, θ to 5 V or less is applied to each of a), and a voltage of, for example, −15 V to 50 V (so-called column selection voltage) is applied to the second grid (G2). - In this configuration, the voltage on the anode side is fixed, the column is selected by the voltage applied to the second grid (G2), and the column is selectively turned on or off by the voltage applied to the first grid (G1). It is something. That is, for example, 50V is applied to the second grid (G2) of the upper row electrode units (13a) to (13d), and the lower row electrode units (13a) to (13d) are applied with 50V.
13e) to (13h) with a cutoff voltage of, for example, -15V applied to the second grid (G2).
64Gz) to the first grid (G1).
When (1) is applied, the first phosphor trio (12a) is selected, and the electron beam from the cathode (K) in that electrode unit passes through the first grid (G1) and is accelerated in the second grid (G2). The corresponding phosphor layer (14R)
Hit (14G) and (14B) to make them display light. At this time, the voltage (
Emission brightness is controlled by controlling the panel width (application time) in 5).

When 0* is applied to the first grid (G1), the electron beam from the cathode is cut off and the corresponding phosphor 1@ does not emit light. and lead (
64Gz) (65Gt) (66Gt) and (67ct) sequentially through the first grid (G1)
The upper row of phosphor trios (12
a) to (12d) are displayed with light emission, and then the voltage of the second grid (G2) is switched and the second glyph F' (G
2) Applying 50V -F (64Gt)~
When the voltage of the first grid (Gl) is applied in the order of (67GL), the phosphor trios (12e) to (12h) of the column (67GL) are displayed by emitting light.

The electron beam from the wire cathode (K) is spread by the first grid (G1) and the separator (41) and is irradiated onto the entire surface of the phosphor layer (14).

Also, the electron beam from the wire cathode (K) hits the first grid (G1) and the second grid (G2), and secondary electrons are generated from the first grid (G1) and the second grid (G2). , this secondary electron is the national body of the second grid (26
) separator (28) and anode side separator (
41) from hitting the adjacent phosphor layer. By selectively controlling the voltages of the first grid (Gl) and the second grid (G2) in this manner, each phosphor trio (12) is sequentially displayed with high brightness.

In this fluorescent display cell (71), eight picture elements, that is, the fluorescent trio (12) are compactly incorporated into one cell, so that the picture elements as a whole are miniaturized.

There are also three wire cathodes (K) and a first grid (G).
The second grid (G2) common to 1) is made into a unit so that its unit Kokutai (26) also serves as the second grid (G2), and this electrode unit (12) corresponds to each fluorescent trio (12). Since the display cell (71) is arranged in such a manner that it is easy to assemble and manufacture the display cell (71). Furthermore, since the unit kokutai (26) which also serves as the second grid (G2) is made by a so-called drawing process, the corners are rounded, the withstand voltage is increased, and accidents due to discharge are prevented.

In addition, in the electrode unit 1-(13), each first grid (G1) is connected to an opening (17) provided in a ceramic base (19) without using spot welding or the like to an insulating separator (31^) (31B). Since the electrode unit (13) is positioned and supported by the groove (32) of the electrode unit (13), it is possible to assemble the electrode unit (13) into a sufficiently small size.

In addition, when arranging a large number of display cells (71) to form a large screen, the fluorescent trios (12) on the fluorescent surface are arranged at equal pitches on the top, bottom, left, and right. , there is almost no gap between adjacent display cells (71).However, in this display cell (71), the anode lead (46) is connected to the back panel (11B) of the glass National Sports Festival (11).
) side through the exhaust pipe (47), adjacent display cells (71) can be arranged close to each other.

Furthermore, in the eight phosphor trios (12) on the phosphor surface, a red phosphor layer (14R) is arranged in the center, and edges and blue phosphor layers (14G) and (14B) are arranged on both sides. However, the apparent resolution can be increased especially when the arrangement of the edge and n phosphor layers n4c) and (14B) is changed between the upper and lower rows.

In addition, in the above example, the wire cathodes (K) in the eight electrode units (13) were configured to be directly connected to each other.
Alternatively, a parallel connection as shown in FIG. 18, for example, can be used; in this case, even if the wire cathode of one electrode unit has a wire cathode, the glue operation of the other electrode units is maintained.

Furthermore, each terminal of the electrode unit and the lead frame may be connected directly to each other without using lead wires. In particular, in the case of a wire cathode (K) terminal, the terminal (22) of the support piece (20a) can be bent and extended to connect directly to the lead frame.

Further, in the electrode unit 1-(13) of the above example, the terminal pins (18a) (18b) are attached to the ceramic base (19).
), but the terminal pins (18a) and (18b) may be omitted, as shown in FIGS. 19 and 20, for example. In FIGS. 19 and 20, a pair of conductive support pieces (20a
) and (20b) through holes (83a) and (20b).
A ceramic base (19) is provided having formed thereon (83b).

On the other hand, a pair of conductive support pieces (20a) and (20b)
) is a support part (8) to which each wire cathode is attached.
4G) (84R) (84B) are connected to each other, the rear end (85R) which becomes the lead of the central support part is extended long, and the support parts (84G) and (84B) on both sides are connected to each other.
The rear ends (85G) and (85B) of 4B) are folded back to have elasticity. Note that the support portion (84G) (8) of one conductive support piece (20a)
4R) (84B) is configured as a fixed support part, but the support part (84G) of the other conductive support piece (20b)
) (84R) (84B) is provided with a notch at the base and is configured as a spring part (21') as a whole. (86) is a fall prevention portion of the conductive support pieces (20a) and (20b). Support part (84G
) (84R) (8411) The end where each wire cathode (KB) (KR) (Ke) is stretched is,
It has a bent shape with a notch so that the wire cathode (K) can be centered. Insert both support pieces (20a) and (20b) into the through holes (83a) and (83b), respectively, and
G) (85B) with supporting pieces (20a) and (20
b) is supported on the ceramic base (19), and then each wire cathode (KG) (KR) (KB) is stretched between both support pieces (20a) and (20b). At this time, each lead (85R) has a ceramic base (
19). According to this configuration, the terminal pins (18a) (18b) can be omitted, and the electrode unit (
13) The number of parts constituting the structure can be reduced.

FIGS. 21 and 22 show other examples of conductive support pieces (20a) and (20b) that support the wire cathode (K). In this example, the conductive support pieces (20a) and (20b
) The plate-shaped rear ends (85G) and (85B) of the supporting parts (84G) and (84B) on both sides of the plate are immediately extended without being folded back, and the rest is the same as in FIG. 19. configured. And this conductive support piece (20a)
and (20b) are the through holes (8) of the ceramic base (19).
3a) and (83b), the rear end of each plate (85G) and (85G) passed through the through holes (83a) and (83b)
85B) is easily fixed to the ceramic base (19) by twisting the end portion by approximately 90° as shown in FIG.

FIGS. 23 and 24 show still other examples of conductive support pieces (20a) and (20b) that support the wire cathode (K). In this example, the supports (84G), (84R), and (84B) to which each wire cathode is attached are connected to each other, and extend outward from both supports (84G) and (84B) along the connection part (88). A lead (89) is formed at the rear end (85G) of each support.
) (85R) (85B) are bent at right angles in the direction in which both support pieces (20a) (20b) face each other, and their respective rear ends (85G) (851?) (85B)
> is provided with a through hole (87). On the other hand, the ceramic base (19) has conductive support pieces (20a) at positions sandwiching the three openings (17) that support the first grid (Gz).
) and (20b) are provided. This through hole (92) is connected to each rear end (85G) (85R) of the J degree support piece <208) and (20b).
(85B) corresponds to the position of the through hole (87).

Then, as shown in FIG. 24, this conductive support piece (20
a) and (20b) are placed on the ceramic base (19) so that the through hole (87) corresponds to the through hole (92) of the ceramic base (19), and then the tapered conductive pipe (93) is placed on the ceramic base (19). ) is inserted into the through hole (92) of the ceramic base (19) from the through hole (87) side, and each time the end (93a) of each conductive pipe (93) that has passed through the through hole (92) is crushed. It is fixed to a ceramic base (19). Note that the leads (89) extending on both sides of the support pieces (20a) and (20b) are such that only the leads on one side are left and the leads on the other side are cut, depending on how the cathode is connected. And this support piece (20a)
In (20b), when using the cathode connection method shown in FIG. 30, the leads (89) of adjacent support pieces are connected in series by direct spot welding.

Further, in the above example, the separator structure (40) on the anode side is held by sandwiching its supporting claw (43) between the front panel (118) and the side plate (11C) of the glass national body (11). In this case, the claw (43) is on the side & (IIC)
However, if it is necessary to further increase the pressure resistance between the tip of the claw (43) and the outer surface of the glass national tai (Glass Kokutai), for example, as shown in Figure 17, the glass Kokutai (
A glass plate (72) is further installed inside the side plate (IIC) of 11).
), this glass & (72) and the front panel (IIA
) can be configured to hold the claws (43) of the separator structure (40) between them.

Furthermore, for holding the separator structure (40), the supporting claws (43) can be omitted and the separator structure (40) can be directly fixed to the front panel (IIA) of the glass national body (11) with frit glass. At this time, since the supporting claws (43) are omitted, electrical discharge to the outside of the glass national body and discharge within the glass national body, that is, so-called creeping discharge along the side & (IIC) is reliably prevented. At this time, the front panel (
On the 11^) side, carbon J* (15) and metal back layer (16) should not be formed on the part where the frit glass is bonded. When the display device is constructed, the front surface of the glass body (11) is further covered with a unit panel that also serves as an external light shield, which will be described later, except for the phosphor trio, so that the frit glass portion is hidden.

In addition, in the above example, the mesh part (29G
) (29R) (29B) was made into a slit shape, but in this case, because the opening in the longitudinal direction of the slit was large, a high electric field (80
) is an interesting way to construct an electronic lens.

On the other hand, as shown in Fig. 27, the mesh part (29G
) (29R) (29B) If we make a fine turtle's fall, the penetration of the high electric field will be eliminated (see Figure 28), and no electron lens will be formed.

In addition, in the above example, columns were selected by switching the voltage of the second grid (G2), but in other cases, for example, the wire cathode (K)
You can also select columns by switching . in this case,
As shown in FIG. 29 (parallel connection) or FIG. 30 (series connection), the wire cathodes (K) of the electrode units (13a) to (13d) are commonly connected, and the electrode units (13
The wire cathodes (K) of e) to (13h) are commonly connected. During operation, the commonly connected wire cathodes (K) of the upper and lower rows are turned on, and a drive voltage of, for example, 0■ to 5■ is applied to each wire cathode as a column selection voltage, and the first grid (G1) 0■～5
A drive voltage equal to or less than (1) is applied, and a fixed voltage equal to or less than lO2 is commonly applied to the second Gliso F' (G2) of each electrode unit (13a) to (13h). Therefore, for example, 0■ is given to the wire cathodes (K) of the electrode units 1 (13a) to (13d) in the upper row, and the wire cathodes (K) of the lower row electrode units (13e) to (13h) are given a cutoff value. For example, if 5■ is given, lead (64
When, for example, 5V is applied to the first grid (G1) through G1), the first phosphor trio (12a) is illuminated.

When 0 is applied to the first grid (G1), the electron beam is cut off and the corresponding phosphor layer does not emit light. And lead (64G1) (65G1)
1 sequentially through (66G1) and (67Gt)
When voltage is applied to the grid (G1), the upper row of phosphor trios (12a) to (12d) emit light, and then the drive voltage of the wire cathode (K) is switched and the wire cathode (K) of the lower row is turned on. Give ■ and lead in the same way (64G!
) to (67Gt) in order, the lower row of phosphor trios (12e) to (1
2h) is displayed with light emission. In this case, each electrode unit (
13a) to (13h), the second grid (
G2) as a common connection.

A continuous configuration is adopted.

For example, as shown in FIGS. 31 to 33, a common plate-shaped conductive auxiliary member (68) is provided, and this auxiliary member (
68) forms the notch (96) of each electrode unit national body (26), and bends the notch part (97).
An auxiliary member (68) is spot welded to the auxiliary member (68), and each second grid (G2) is commonly connected.

At the same time, in this case, an integrated conductive retainer structure (98) common to the eight sets of electrode units (13a) to (13h) is used, and this common conductive retainer structure (98) Also, each second grid (G
2) are commonly connected. The auxiliary member (68) has a shielding cylindrical part (121) through which the anode lead (46) is inserted.
) are integrally provided, and linearly bulging reinforcing bead portions (122) are formed at the center of both sides of this cylindrical portion (121). A ring-shaped getter container (123) is integrally attached to the common conductive retainer structure (98). The getter container (123) is arranged so that the getter material faces the back panel side of the glass national polity (11).

Although not shown, the auxiliary member (68) is attached to the retainer structure (34) of each electrode unit (13a) to (13d).
) and each electrode unit (13e) to (131+) by spot welding to the retainer structure (34), or by attaching the retainer structure (34) to the bent part (97) of each electrode unit (26). It is also possible to jointly connect each second grid (G2) by spot welding an auxiliary member (68).

In example -F, eight fluorescent trios are arranged, but the number is not limited to this and can be selected as appropriate.

Figures 34 and 35 are embodiments of display cells comprising two phosphor trios.

In this example, two sets of electrode units (90) C (90a), (9Q
b) )), and two sets of phosphor trios (12) ((12a), (12b) are arranged on the inner surface of the front panel (11^) so as to face these electrode units (90).
) )). On the phosphor surface side, each color phosphor layer (14R) of each phosphor trio (12) is provided as described above.
, (14G).

A separator structure (40) made of a conductive material is arranged so as to surround (14B).

In this case, the electrode unit (90) has fine mesh parts (29B), (29R), (2
9G), a unit national body (26) with spot welded second grid (G2), and three first grids (G2).
xe), (GlR), (Gte) and three wire cathodes (KB) (KR) (Ke) strung between pairs of conductive support pieces (20a) and (20b). The unit Kokutai (26) forming part of the second grid (G2) and each first grid (G1),
The pair of support pieces (20a) and (20b) are directly spot-welded to the lead frame (60) placed on the inner surface of the back panel (llb) of the glass national athletic meet (11) and are electrically and mechanically supported. .

In the E-shaped conductive support piece (20) that supports the wire cathode (■ ()), one side is the fixed support piece (20a) and the other side is the spring part (2
1') with a supporting piece (20b).

The ends of the support pieces (20a) (20b) on which the wire cathodes (KB) (KR) (Ke) are stretched have notches and are folded so that the wire cutters (F'CK) can be centered. It is made into a curved shape.

On the other hand, in this example, a conductive getter container (70) electrically and mechanically supported by a part of the separator structure (40) is arranged near the front panel (IIA). An anode lead (46) is connected.

Furthermore, regarding the holding of the separator structure (4o), °ζ is
The supporting claw (43) is omitted, and the separator structure (40)
is directly fixed to the front panel (IIA) of the glass National Sports Festival (11) with frit glass (81).

That is, the salt 8II of the separator structure (40) is temporarily opened (8
o) is provided, and the front panel (11^) and the front panel (11^) extending from the number of electrodes to this opening (80) are fixed with a frit glass (81). In this case, the front panel (I
On the IA) side, the carbon JWif (15) and metal back layer are not formed in the area where the frit glass (81) is bonded. Therefore, the pattern of the carbon layer (15) is formed as shown in FIG. 36. In addition, a plurality of cut-out portions (83) are integrally provided from the side of the opening (80) of the separator structure (40), and this is elastically folded back to form the metal bank layer (16) and the carbon r@(15). This cutout (83) establishes an electrical connection between the fluorescent surface and the separator structure (40). Note that when a display device is constructed by arranging a large number of display cells (71'), the front surface of the glass national body (11) is further covered with a unit panel that also serves as a shield for external light, excluding the phosphor trio, so frit glass is used. Parts are hidden. When the separator structure (40) is directly fixed to the front panel (11^) of the Glass National Sports Festival (11) in this way, the supporting claws (43) are omitted, so as mentioned above, there is no discharge from the outside of the Glass National Sports Festival. Also, so-called creeping discharge along the inner surface of the side plate (IIC) inside the glass body is prevented. The method of holding the separator structure (40) and the contact between the separator structure (40) and the fluorescent surface can also be applied to the examples shown in FIG. 1 and FIG. Also, by arranging a large number of display cells (71') shown in FIGS. 34 and 35,
A large double-sided display device is obtained. When arranging the display cells (71'), as described above, each column (horizontal line) has edges,
Red, H phosphor layer (14G) (14R) (1
4B) can have the same arrangement. In addition, each row (horizontal line) has green and blue phosphor layers (14G) and (14B).
It is also possible to arrange the left and right sides inverted, which increases the apparent resolution.

Fluorescent display cells (71), (71') as described above
A plurality of units are assembled into a unit panel to constitute one unit, and a large screen display device is constructed by arranging a large number of these units. In the case of a display cell (71) having 8 sets of fluorescent trios, for example, 8 vertical x 4 horizontal = 32 units are combined to form a large number of units (lid arranged in an X-Y matrix). A large display device is formed.

When a large display device is configured by arranging a large number of the display cells (71) or (71') described above, there is a risk that the contrast and image quality will deteriorate due to reflection of external light on the display surface. For this purpose, the surface of each display cell (71) (71') is subjected to anti-reflection matte treatment.
In the example shown in Figures and Figure 39, a transparent resin film with a light transmittance of over 90% is coated on the surface of the display cell (71); (115) is pasted.

In this case, the resin film (115) is formed of a film that can prevent reflection of external light and block ultraviolet rays. The resin film (115) that blocks this ultraviolet rays is used, for example, as shown in No. 40111, for each field of the phosphor trio (12), green and blue phosphors 1! (14R), (14G
).

Red, edge, and blue filter components (116) corresponding to (14B)
R) (116G) and (l16B) on the front panel (11) of the display cell (71).
^) It is effective when it is formed on top and configured to improve contrast. That is, although there is a risk that the organic dye of the color filter (116) may fade due to ultraviolet rays, this resin film (115) prevents the color filter (116) from deteriorating.

In addition to pasting the above-mentioned resin film (115), matte treatment on the surface of the display cell can also be done by applying the front panel (IIA
), or by spraying clear lacquer or depositing SiO2 on the glass surface of the front panel (IIA'') to form an uneven surface.

When a large display device f (117) is configured as shown in FIG. 41 by applying matte treatment to the surface of the display cell, external light (118) is diffusely reflected (11B') on the display surface.
This reduces the influence of external light on the audience (119) side.
Deterioration in display screen contrast and image quality is avoided. When pasting a matte-treated resin film (115), it is advantageous in terms of cost and stability, and the front panel (
It can also serve as protection for the glass surface of IIA).

Next, assembly of a unit using the display cell (71) will be explained.

First, as shown in FIG. 42 and FIG.
The image display cells (71) are arranged in close proximity so that
(71) Rear panel (11B)
Cushion with pressure-sensitive adhesive on both sides (131)
For example, a cell fixing substrate (132) made of synthetic resin, which also serves as a spacer, is adhered through the image display cells (71) (71).
) are integrated. Further, as shown in FIGS. 44 and 45, an image display cell (71) is placed on this fixed substrate (132).
) A common drive circuit board <133) having a drive circuit (71) is attached to form a display tube block (134) in which two display cells (71) are combined. Here, the cushion (131) has two display cell back panels (
The insulating cylinder of the anode lead (10
A notch (135) for inserting the cell fixing substrate (1) is provided in the center (i.e., a position corresponding to the gap between the display cells (71) (71) of 2 (1&I) arranged in parallel). Engagement hole (1) for positioning with (132)
36) is provided.

In addition, in the cell fixation base & (132), the cushion (1
Notch (137) corresponding to the notch (135) of 31)
It has the same shape as the cushion (131) in plan view, and a spacer part (138) having a predetermined height t along the width direction of the display cell (71) and a spacer part (
13B) is integrally provided with a threaded portion (13!3) having the same height as that of 13B), and spacer portions (140) having the same height t at both ends.

The thread (139) is the lead (100) of the display cell (71).
) side, and the spacer part (140) is provided on the lead (10
0) is provided on the opposite side. The upper end of the spacer part (140) has a hole (14) for positioning the drive circuit board (133).
A protrusion (142) is provided which engages with 1).

(143) is a protrusion that engages with the engagement hole (136) of the cushion (131) protruding from the other surface of the cell fixing substrate (132). The drive circuit board (133) has an image display cell (7).
1) A through hole (144) is provided through which the insulating cylinder (101) of the anode lead protruding from (71) is inserted, and a unit panel (described later) is provided in the center of one side edge on the lead (100) side of the display cell. Boss part (156) from 151)
A semicircular notch (145) is provided through which the holder can be inserted. The driving circuit board (133) has a spacer portion (138) of the cell fixing base & (132) by inserting the insulating cylinder (101) of the display cell into the through hole (144).
(140) and the screw (139),
50) from the drive circuit board (133) side.
) is fixed to the cell fixing substrate (132). In this case, the cell fixing board (132) is mounted on the cell fixing board (132) and the circuit board (133) is placed on the cell fixing board (132).
Insert the protrusion (14) of the cell fixing substrate (132) into the hole (141).
2) is positioned by engagement. After the drive circuit board (133) and cell fixing base & (132) are screwed, both display cells (71) (71) leads <1
00) is soldered to the wiring pattern of the drive circuit board (133), and the image display cell (71) (71
) are integrated.

On the other hand, a unit panel (151) as shown in FIGS. 46 to 48 is provided. This unit panel (151
) is, for example, 8 vertical x 4 horizontal = 32 (lid display cell (
71) is arranged, and 32 display cells (71)
A matrix of 256 windows (152) facing each phosphor trio (12) is provided.

Eaves (153) are integrally formed on the surface of the unit panel (151) for each row of windows (152). In addition, each display cell (71) is provided on the back side of the unit panel (151).
) are formed vertically and horizontally, and holding and guiding members (155) for holding four display cells (71) at predetermined intersection points of the partitions (154) are formed. Installed in one piece.

The holding and guiding member (155) includes a boss part (156) for holding the display cell (71) and this boss part (155).
It consists of a guide part (157) that overhangs vertically and horizontally from the base of the screen and is connected to the partition part (154).
The guide part (157) in the vertical direction perpendicular to 153)
are formed so as to be continuous with each other. Boss part (156)
is provided separately from the unit panel (151) as shown in FIG. 49, and the base (155a) of the holding and guiding member
firmly adhered to. In this case, the cross-shaped groove (156a) of the boss portion (156) is connected to the base (155a) having a cross-shaped cross section.
are fitted and integrated with adhesive.

Then, as shown in FIGS. 50 to 51, the two display cells (71) described above are placed on the back side of the unit panel (151).
A predetermined number of display tube blocks (134) that are integrated with (71) are arranged. At this time, each display cell (71) is partitioned by a partition part (154) and a guide part (157). Next, two display tube blocks (134
) has a boss insertion hole (161) in the center as shown in FIG. The presser (164) is attached to both legs (162) and (1).
63) are fitted so as to abut on each drive circuit board (133) of the adjacent display tube block (134). Next, a chassis (165) on which a high-voltage power source, power line, signal line, etc. are arranged is commonly placed on each holding tool (164), and the chassis (165) and boss part (156) are screwed together (
200).

At this time, the two blocks (134) are the presser (164)
In other words, four display cells (71) are each held by a common presser (164) to form an l unit 1-(166) shown in FIG. 54.

When assembling this one unit (166), as shown in FIG.
4G), red phosphor real (14R) and prior phosphor layer (
A display tube block (134A) having display cells (71A) arranged in the order of 14B) and a phosphor trio (12) as shown in FIG. 55B are blue phosphors! (14
B), red phosphor layer (14R) and green phosphor layer (14G)
A display tube block (134B) having display cells (71B) arranged in this order is provided. Image display cell (71
A) and (71B) both lead on the same side (100)
is derived, display cells (71^) and (71B)
Each lead (100) of each other's display cell leads (10
0). Both display tube blocks (134A) and (134B) are arranged on the unit panel (151) so that the leads (100) face each other as shown in FIG. At this time, the leads (100) of both blocks (134A) and (134B) are alternately arranged between the leads (100) of the other block.

Since the leads (100) of the display cells are arranged so as to face each other in this way, since the leads (100) are not arranged on the sides of the unit (166), the unit panel (151) has only one lead (100). There is no need to allow for bending, and so-called dead space is no longer wasted.

Furthermore, since the two display cells (71) are constructed as one block (134), the overall assembly when constructing the unit (166) is simplified. Furthermore, since each block can be inspected, work such as inspection and repair (so-called service system) is simplified.

Also, one boss part (15B) has four display cells (71).
are fixed at the same time, the number of fixing points can be reduced and the number of bosses (156) can be reduced, and at the same time, the display cell (71) and therefore the block (134) can be easily replaced during repair or replacement.

Furthermore, the unit panel (151) is reinforced in the lateral direction by the eaves section (153) extending in the lateral direction on the front surface, and the guide section (157) extending in the longitudinal direction on the back surface.
What is the vertical direction? As a result, the mechanical strength of the unit panel (151) itself increases as a whole.

As shown in Figures 54 and 56, display cell (71)
1 unit (166
), one high-voltage power supply (171) is equipped for this one unit (166), and high-voltage power tA (171) is installed.
) from which the same voltage lead (172) is connected to each display cell (71) of 32 (lid).In this case, the high voltage power supply (171
) and each display cell (71), a protection resistor (173) of 1 (+1d) is inserted in series between the protection resistor (1
73) is 100KΩ, for example. As the protective resistor (173), for example, a so-called fuse resistor as shown in FIG. 57A is used. This fuse resistance (1
73) has a 100Ω resistor body (174) and a spring (176) arranged in an insulating cylinder (17?), and one end of the spring (176) is attached to one end of the resistor body (174) using a low melting point metal. (i.e. fuse) (175), and when an excessive current flows, the low melting point gold fi (175) melts due to heat generation as shown in Figure B of vA57, and the spring (
176) is configured to be separated from the resistor body (174) and disconnected due to its elastic biasing force. In the disconnected state, the distance l between the resistor body (174) and the spring (176) is a distance that can maintain sufficient withstand voltage (for example, 8 cranes or more). Two cases (17
8) 16 fla are stored in one minute each. One end of each resistor (173) is connected to a lead (106).
), and the other ends of each resistor (173) are commonly connected and connected to a high voltage '41 source (171) through a lead (172).

As mentioned above, the connection means (107) connects the display cell (
71) of the anode lead (46) insulating cylinder (101)
By fitting into the display cell (71), high voltage from the high voltage power supply (171) is supplied to the display cell (71).

In such a configuration, if an excessive current flows through the display cell (71) due to a large internal discharge within the display cell (71) or a glow discharge caused by poor straightness due to slow leakage, a protective resistor (for example, 100Ω to 173), when the anode voltage HV is 8KV, the discharge current l is I = 8
x 10' / 100x 10j = 0.08A, and if the current capacity of the high voltage power supply (171') is 13m8, the electric power will be 0.0132x 100'q1? W, and the resistor (173) of only the display cell (71) through which the excessive current flowed is disconnected. Therefore l unit 1-(166
) Only the failed display cell does not emit light; other display cells are not affected in any way.

In addition, if one display cell causes internal discharge and this condition eases, the high voltage Si source (171) may fail or the high voltage may become low (if the power supply capacity is small), causing all display cells of one unit to emit light. However, since one protective resistor is inserted in one display cell, such a situation can be avoided.

In the above example, the surfaces of the display cells (71) (71') are treated with anti-reflection matte treatment (i.e., the resin film (115) shown in FIGS. 38 to 41 is attached, the glass surface is etched, and the glass surface is etched). The matte treatment was applied to a display cell consisting of a phosphor trio as shown in Figures 65 and 66. It is applicable.

Furthermore, in the display device using the display cell (71) in FIG. 56 of the above example, one protective resistor is inserted between the high voltage power supply and each display cell, but this The present invention can also be applied to display devices using the display cells shown in FIGS. 67 and 68.

The light emitting display cell (10) shown in FIGS. 67 and 68 is
On the inner surface of the front panel (IIA) of the glass national sports stadium (11), surrounded by a carbon layer (15), there is a trio of phosphors, that is, phosphors 1iii (14) of three colors of red, green, and blue ((
14R) (14G) (14B)), and each color phosphor # (14R), (14G
>, three wire cathodes (K) ((KR) opposite (14B).

(Ke), (Ks)) and the first grid (control electrode) (Gl) ((GlR), (Gte)
, (Gts) ) and Jj:Tsu's second grid (
(acceleration electrode) (G2).

Each color phosphor M (14R), (14G > and (
14B) are each surrounded by a separator (40) so that the electron beam from each wire cathode (K) irradiates the corresponding phosphor layer (14). In this case, the anode terminal (5) that supplies the anode voltage to the phosphor J'1i (14) is connected to the glass national body (
11) from between the front panel (118) and the side plate (IIC), and the other cathode (K) and the first grid (G1)
, each terminal (6) of the second grid (G2) is connected to the rear panel C.
IIB) and side 1i (IIC). In this light emitting display cell, an anode voltage is supplied to the phosphor layer (14) through the anode terminal (5), and the anode side and the second
The voltage of the grid (G2) is fixed and the voltage of the first grid (G2) is fixed.
1) It is selectively displayed on and off depending on the voltage applied to it.

Next, a description will be given of the assembly of a large-sized display device formed by arranging a large number of the aforementioned units (166) in a matrix.

Figures 59, 60, and 61 show a large display device (18
1) shows an overall front view, an enlarged sectional view, and a part of the back side.

Each unit (166) has one high voltage power supply (171).
), and as a drive circuit, for example, Japanese Patent Application No. 60-171
A drive circuit arrangement as described in No. 29 is taken and the whole is covered with a metal cover. In this case, unit)(
166) is displayed on the display surface (166) as shown in FIG.
The front part (166a) on the A) side is wide and the rear part (166b) is narrow.

This unit) (166) is attached to a column (183) of a structure (182) to be described later via an attachment part, for example, 10 in length x 13 in width.
130 display devices (18
1) is configured. That is, the structure (182) is, for example, a plurality of pillars (iron material) having a flat plate shape or a T-shaped cross section, which extend vertically at predetermined intervals on a sturdy frame body (184) made of iron material. (183) is fixed, and the area around which the unit (166) is arranged is decorated with stainless steel (
185) is attached. The framework (184) includes a pair of supports (194A) and (1) arranged at a predetermined interval.
94B), a tri-shaped upper horizontal frame (195) and a lower horizontal frame (19B) are inserted and fixed therebetween. The decorative board (185) consists of two vertical boards (185A),
(185B) and two horizontal boards (185C), (
1850), horizontal plate (185C) (1850)
are attached to the vertical plates (185A) (185B), and the vertical plates (185A) (185B) are attached to the upper and lower horizontal frames (195) and (196). The center mass ratio MII D t of adjacent columns (183) is the unit (
166) is approximately equal to the width D2 of the front portion (166a) of the front portion (166). When the units (166) are installed, they are arranged with almost no gaps, with a distance of one or two cranes between adjacent units. On the other hand, at the rear of the unit (166), mounting brackets (18
6) (187) is fixed by spot welding. These mounting brackets (186) (187) are spanned between two adjacent pillars (183), and the mounting brackets (186) (1B
? ) from the back of the pillar (183) respectively.
B), the unit (166) is attached to the structure (182) (see Figure 62). Furthermore, on the back side of the structure (182), a scaffold (190) for a worker (189) is provided as shown in FIG. 60. In this example, the effective screen of the display device is approximately 3.5m x width approximately 4.6+w
Therefore, two stages of scaffolding (190) are provided, upper and lower.

In this way, a large number of units (166) in a structure (187)
For example, as shown in FIG. 60, the display device (181) is constructed by fixing both supports (194A) and (194B) to the floor (197), and further includes a fall prevention member (19B).
is fixed between the pillar (194^) and (194B) and the wall (198). In addition, such a display device (18
1) can be installed outdoors or indoors.

Figures 65 and 66 show the display device (181) in front (
202) is installed inside the glass jaw room (201). In this example, an auxiliary wall (203) for partition is provided in the jaw room (201), and this auxiliary wall (203) is provided in the jaw room (201).
3) so that only the display surface of the device (181), that is, the stainless steel decorative plate (185) faces the opening of the display device (181).
81) will be installed.

The unit (166) is attached and removed from the back side of the structure (182). When removing the unit (166), remove the port 1- (188) as shown in Fig. 63, move the unit (166) rearward, and follow the chain line (
Move it further backward while moving it to one side as shown in I),
Next, the unit (166) is taken out from between the pillars (183) while rotating the unit (166) as shown by the chain line (n). When installing, just do it in the reverse order.

FIG. 64 shows an example in which the unit (166) is attached and removed from the front side of the structure (182). That is, on both sides of the unit (166), the upper and lower mounting brackets (186) each have a rectangular cross-section, and the approximately U-shaped auxiliary bracket (191) as shown in the figure extends between both ends of the bolts. (192). This auxiliary metal fitting (19
The unit (166) is attached to the structure (18) by fixing the unit (1) to the column (183) from the surface with bolts (193).
2).

In this way, the unit (166) is configured to have a wide front part (166a) and a narrow rear part (166b), and is attached to the structure (182) through a pair of mounting brackets (186) and (187). Since it can be installed on the pillar (183),
The unit can be easily assembled to the structure (182), or removed and attached when repairing or replacing the unit. Moreover, since the distance Dl between adjacent pillars (183) is approximately equal to the width D2 of the wide front part (166a) of each unit 1-(166), a large number of units can be arranged without any gaps during assembly. .

By directly applying matte processing to the display surface, external light irradiated onto the display surface is diffusely reflected even when a large display device is constructed by arranging a large number of display cells in a matrix. Therefore, the influence of external light reflection on the audience side is reduced, and contrast and image quality are improved.

[Brief explanation of drawings]

1 and 2 are partially cutaway front and side views showing an embodiment of a fluorescent display tube according to the present invention, and FIG. 3 is a part 1 thereof.
FIG. 4 is an exploded perspective view of the electrode unit, FIG. 5 is a plan view of the electrode unit, FIG. 6 is a sectional view taken along line A-A in FIG. 5, and FIG. 8 is an enlarged sectional view of the main part of FIG. 2, FIG. 9 is a perspective view of the lead-out part of the anode lead, and FIGS.
The figures are cross-sectional views of essential parts showing other examples of connection parts between the anode lead and the external lead, Fig. 12 is a perspective view of the separator structure on the anode side, and Fig. 13 is a plan view showing the arrangement of the phosphor trio. 14 is a plan view showing another arrangement of the phosphor trio, FIG. 15 is a perspective view showing another embodiment of a plurality of connected electrode unit parts, and FIG. 16 is a part where the getter container is arranged. 17 is a sectional view showing another embodiment of the fluorescent display tube, FIG. 18 is a line diagram showing another example of the cathode connection method, and FIGS. 19 and 20 are electrode units. FIGS. 21 and 22 are exploded views and cross-sectional views showing other examples of support structures for wire cathodes of electrode units;
23 and 24 are exploded views and cross-sectional views showing other examples of the support structure for the wire cathode of the electrode unit, and FIGS. 25 and 26 are plan views of the second grid G2 and its C-
27 and 28 are plan views of essential parts showing another example of the second grid G2, and sectional views thereof taken along line D-D, and FIGS. 29 and 30 are views of the cathode, respectively. Other examples of connection methods are shown in the box diagram, Figures 31, 32, and 33.
The figure is a plan view showing another example of the connection structure of the electrode unit, a cross-sectional view taken along the line E-E, a cross-sectional view taken along the line F-F, and the 34th
Figures 35 and 35 are partially cutaway front and side views showing another embodiment of the fluorescent display tube, Figure 36 is a plan view showing the pattern of the carbon layer, and Figure 37 is a support piece for the wire cathode. FIGS. 38 and 39 are front views and partial side views showing embodiments of the fluorescent display tube according to the present invention, and FIG. 40 is a perspective view showing an example of the fluorescent display tube according to the present invention. 41 is a side view of a display device for explaining prevention of reflection of external light; FIGS. 42 and 43 are sectional views showing another embodiment of the tube; FIG. An exploded view and a perspective view showing an example of the assembled state of the display tube block, FIGS. 8844 and 45 are perspective views and a sectional view taken along line G-C of the fluorescent display tube block, and FIGS. 46 and 47 are unit panels. 48 and 49 are perspective views and exploded views of the main parts of the back of the unit panel, and Figs. 50, 51 and 52 are rear views of the main parts of the unit, 53 is a perspective view of the presser, FIG. 54 is a front view showing an example of one unit, and FIGS. 55 A and B are plan views each showing an example of one block of fluorescent display tubes. Figure, No. 56
The figure is a configuration diagram of a display device in which a protective resistor is connected to each display tube, and FIGS. 57A and 57B are cross-sectional views showing an example of the protective resistor.
Figure 58 is a perspective view of the protective resistor housed in the case;
FIG. 9 is a hemostatic diagram showing an example of the display device according to the present invention, No. 60.
6 and 61 are an enlarged sectional view and a rear view thereof, and FIG.
Figure 2 is a perspective view of the unit installed on the structure, Figure 6 is
Figure 3 is an explanatory diagram of the unit taken out from the structure, Figure 64 is a side view showing another example of how the unit is attached to the structure, and Figures 65 and 66 are views of the display device installed in the jaw room. Front view and top view, Figures 67 and 68
The figures are a front view and a sectional view showing another embodiment of the fluorescent display tube. (11) is glass national polity, (12) ((12a)
~(12h)) is a phosphor trio, (13) ((13
a) ~(13h)] is the electrode unit, (KG)
(KR) (KB) is wire cathode, (G tG)
(G IR) (GIB) is the first grid, (G2) is the second grid, (46) is the anode lead, (10
), (71). (71') is a display cell, and (115) is a matte-treated resin film.

Claims (1)

[Claims] A fluorescent display tube comprising a display cell having a cathode, a grid, and fluorescent display segments, and the surface of which is treated with an anti-reflection matte treatment.