JPS60109152A - Flat cathode-ray tube - Google Patents

Abstract

PURPOSE:To obtain a captioned cathode-ray tube excellent in mechanical strength while checking an increase in weight by making an edge of a supporting wall to be held between the short edges of the strip-shaped glass thin plates in order to position it between the strip-shaped regions of the phosphor screens. CONSTITUTION:Inside an outer peripheral wall 4, the L-shaped inner peripheral walls 4i, which extend from its neighboring two sides 4a and 4b about in the orthogonal directions respectively, are provided en bloc, while a phosphor screen 5 is arranged on the side of a panel 2 in the part surrounded by two sides 4a and 4b of these outer peripheral walls 4 and the inner peripheral walls 4i. A plate- shaped supporting wall 16 is placed between both panels 2 and 3 while putting it between the glass thin plates 9, where a phosphor region is formed so as to regulate an interval between both panels by the width of said supporting wall 16. Thereby, a tubular body fully resisting atmospheric pressure, in which an electron passage is not at all disturbed, can be constituted.

Description

DETAILED DESCRIPTION OF THE INVENTION The industrial field of application relates to a wooden 1 (11 is medium color or colored flat) 24 negative ray tube.

BACKGROUND TECHNOLOGY AND PROBLEMS In flat cathode ray tubes, due to problems such as M productivity, two laminated glass panels are placed facing each other with a certain distance between them, and a peripheral wall is sandwiched between the two panels. So J”l −f’,
'i L, support the regulation of the spacing between this 1 Li panel,
It is conceivable to form a flat Qi space between the two panels surrounded by this circumference. However, when both the bulbs are supported only by the peripheral walls provided around them, if the flat tube is enlarged, that is, has a large area, it will be exposed to atmospheric pressure and In order to obtain enough strength to withstand impact, it is necessary to increase the thickness of both panels, which increases the weight, which poses a problem in wall-mounted televisions and the like.

In order to increase the strength of such a flat T' type cathode ray tube without increasing the thickness of both panels, it is necessary to install support columns not only at the periphery but also at the center of the panel. 1. Alternatively, it is desirable to provide a support wall.

However, when such supports or support walls are provided, a problem arises in that they obstruct the path of the electron beam.

According to the present invention, in this type of flat-1 type 12-pole wire bond, the thickness of the panel is not increased significantly, and therefore the increase in weight Mk is suppressed and the mechanical strength is sufficiently improved. This is a flat cathode ray tube with excellent strength.

In the present invention, the first and second panels have an outer circumference 1 (
t and a supporting wall disposed within the outer circumferential surface St, and are supported in opposition to each other via the outer circumferential wall and both panels to ensure airtightness. The flat tubular body formed between and this flattened 1'11°11k,
The phosphor screen is divided into rectangular strips at each height of the lost electron 3/C, the phosphor screen placed on the inner surface of the first panel, and the progress of the electron beam emitted from the electron gun. Each i (
The fluorescent ++'+i is provided with a dividing deflection means for dividing the electron beam in one area, and the fluorescence ++'+i is made of a strip-shaped glass thin plate [- coated/IJ coated with - for each area, and a supporting wall is provided. The edge thereof is held between the edges of the rectangular glass base plate and is positioned between the rectangular regions of the phosphor screen. This should be avoided if it becomes a hindrance to the flight of the electric f-beam.

An embodiment in which the present invention is applied to a color hard-line tube will be described with reference to 14 screens.

FIG. 1 is a front view of a flat cathode ray tube according to the present invention.
Figure 2 is a partially cross-sectional rear view, and Figure 3 is its A.
-A line 1. FIG. In the figure, (1) represents the flat tubular body as a whole. This flat? 11. The body (1) includes first and second panels (2) and (3), and an outer periphery arranged between both panels (2) and (3) along the periphery between these panels. Wall (4) and this outer wall (
4) with a support wall (j6) interposed therein, at least both panels (2) and (3), and an outer peripheral wall (j6).
The end face of panel 4) is sealed with a fritted plate or the like, and the space surrounded by these two panels (2) and (3) and the outer peripheral wall (4) is made into an airtight space.

Inside the outer peripheral wall (4), there are two adjacent sides (4a) and (4).
b) and L-shaped inner circumferential walls (41) extending approximately at right angles to each other, and two of these outer circumferential walls (4).
In the part surrounded by the sides (4a) and (4b) and the inner peripheral wall (41), there is a fluorescent screen (
5) Place.

And, in order to juxtapose this liS with the light surface (5),
The side (4C) of the outer peripheral wall opposite to the side (4a) of the outer peripheral wall (4)
] and the side (4il) of the inner peripheral wall (4I), insert the 7h subgun (6) along each side (4C) (4i l).
- equipment.

'Electron 3/c(8) is, for example, at the cathode and 21k
l 'j, do Gl, 2nd Grid G2, history 1
:':l: (Glyphs forming the lens, for example, the third to fifth glyphs 1ζG3 to G5 forming the unipotential type main electron lens L are arranged.This J4i
In this case, the main electron lens L and the object point for it (for example, can-1 K-glyph l' G l-glyph G2-
(Cronne over point) using a Kando grid lens.

In addition, this distance is the total length of the electron gun (6) i' optical surface (5
It is noteworthy that the length can be made sufficiently large by selecting a large length corresponding to, for example, the horizontal width of ).

Then, on the 1iii side of the electron gun (6), there is an outer peripheral wall (4).
10 on the surfaces of panels (2) and (3) in the space between the other side (4d) opposite to that side (4b) and the inner peripheral wall (41) opposite thereto, The electron beam b emitted from this electron gun (6) is
(Example of bending and deflecting in a direction substantially perpendicular to the +1til center of f() (deflection 'r of both legs, step (7) is provided).

Also, the deflection means (7) bends and deflects the I
A plurality of i+'l along the path of the electron beam b in K rows.
Jl O') jli Direct division deflection [1 stage CB) ((8
Vl) (8V2) (8V3), , (8Vn), ) are provided. In the illustrated example, there are five! ]i: direct polarization means (
8v) is provided. These deflection means (8v) are driven by ma order νj conversion, and the electron beam bz inner circumferential wall (4
1) and the space surrounded by two sides (4a) and (4b) of the outer peripheral wall (4), that is, toward the part facing the fluorescent screen (5), that is, in the horizontal scanning line direction of the fluorescent screen (5). bend and deflect along the

Note that the inner peripheral wall (41) facing the side (4d) of the outer peripheral wall (4)
) side (4i2) L: C, each W1r"I "f" stage (
8VI) -(8Vn) +L Through hole h1. h2. h
3. ．． ．． ．． hn is drilled.

- force, light + n1 (5) is applied to each vertically divided deflection means (8
v) to A+i 111111+f"1 directed electron beam path to j center 1, - (i.e., each through hole h
l, h2. h3. ．． ．． ．． ．． hn to 1, and the example is i
(ii) rectangular regions (5A) ((5Al) (5A2) (5A3)
(5An) ). These jIy l1l
)-shaped area is a large curved crow 7) 9 plates (10)
,, I'l is formed by applying a light body 11j to l2. Each strip-shaped area (5A) of the light surface (5), ＼, person // For example, a blank drive consisting of a carphone layer, etc. is formed by phosphor stripes of each color red, green, and l'l horizontally. Arranged sequentially through, for example, Summer Blanks Drive' 2 1'E child 1,'? JIJ 4;'
4, a light-retaining member that emits indenlas light is arranged.

A conductive layer (11) made of, for example, a carbon film is coated on both ends of the glass iΦ plate (9).

Although not shown, a metal back layer or a conductive layer (11) is connected to and adhered to the surface of the phosphor screen (5) on each glass thin plate (lO).

If necessary, facing the fluorescent screen (5), the inner surface of the other panel (3) may be provided with a conductive layer or a metal plate.
J: 'J 6 back + ni electric jJb (12) is f
t :if, salete1. if) A high voltage of 11V is applied to the anode 'Ichikawa' to the light surface (5), a predetermined voltage lower or higher than this is applied to the back 'electrode (12), and these! An auxiliary deflection system is formed to divert the Beano to the phosphor screen (5) side when the bank beano is placed in the space between the 1111 light and the fl+' surface electrode (12).

The force is bent and deflected by the IF direct division deflection means (8) and the electron beam b is placed in a double auxiliary deflection system on the way of each of the four beams, for example a horizontal scanning deflection common to them. One means (13) is provided.

Furthermore, between the scanning deflection means (13) and the auxiliary deflection system consisting of the fluorescence D'+1 (5) and the opposing upper electrode (12), for each Tk crack and passage,
second vertical dividing means (14) ((+4VI)(1
4V2) (14V3), -1, (14Vn)).

In the illustrated example, the deflection means (7) and (8) are each
This is a case where the deflection means is based on F magnetic deflection, and the deflection means (13) and (14) are used as deflection means based on static deflection.

The deflection means (7) and (9) are each formed by turning a U-shaped magnetic core (22), for example, as shown in FIG. 4J.

In this core (22), protrusions (22a) and (22b), which become pole pieces, are protruded and sunk into the opposing blood, and these are wound with wire rings (23a) and (23b), respectively. Both pole pieces (22a) and (22b)
Between? Pinch the edges of the 6 pieces (1). In this way, the /a field in the J direction of the monk's body (1) is made to appear at the path of the electron beam b at 'A1, II'i.In this case, the '1st stage (?) and (8) Each core (22) and its pole pieces (22a) and (22b) should have a uniform width.Then, as shown in the 51st Δ 7, ``electronic bee 1.b''! When trying to direct 1089d1,
The angle θ between both edges of the core (22) and the incident and exit directions of the beam b is selected to be 45°. In this case, as shown in the figure, the electron beam passing through the deflecting magnetic field by the means (7), 8, and (8) is spread as wide as it actually is, that is, with the required beam beam system. On the other hand, the deflection conditions such as the flight distance m in this magnetic field can be made almost constant for electrons at any position in the beam cross section, and as a result, when the beam passes through the deflection magnetic field, the beam strand is not distorted. You can experience a number of inconveniences that will cause you to suffer. In addition, in the name means (7) and (8), for example, the fourth
As shown in the figure, the core (22) nopole piece (22a
) and (22b) between l C7) Inside: 17 (24
a) Provide 33, 1, ) (24b) and 4J of deflection magnetic field.
You can also make it easier to measure the inside. In this case as well, the inner cores (24a) 5 and (24b) have a uniform width and are attached to the beam b, as explained in FIG. 5, so that their edges form an angle of 45°.

For the vertical deflection module (8), each means (8V
I), (8V2), (8V3), 1.
<8Vn) is sequentially switched and driven to direct the beam b in the horizontal direction, but five (five in the figure) paths lined up in the vertical direction Ll, L2, L
3. , , ', , , so as to switch on Ln. That is, for example, one vertical scanning section is divided into n sections, and the means (8Vl) to (8Vn) are sequentially applied to each section. Then drive the heat J, b to each passage Ll, l, 2. At L3°Ln, the interruptions should be made sequentially from one side to the other.

One force, the horizontal deflection means (13) is a claw part: 'l'l deflection I/path L of each beam bent and deflected by the stage (8).
l.

L2. L3. The path of these beams with Ln in between is constructed by a pair of static deflection plates (13a) and (+3b) extending in the horizontal direction along the flat plane of the body (1), forming a circle. Knitting plate (] 3 a) J5 Yohi (13
b) By changing the horizontal scanning 11j 'ij voltage between each path Ll, L2 . L3. ,,, to Ln! ;IJ
The electron beam that passes through the tube body (1) is electrostatically horizontally scanned in the thickness direction of the tube body (1).

In addition, the second vertical deflection stage (14) is the husband'6 body (1)
In the inner circumferential wall (41) of each through hole hl, h2.
There are respective beam paths Ll, L2.
L3. ,,.

A pair of electrostatic deflection plates (14a) and U are arranged so that the plate surfaces run along the thickness direction of the tube body (1) with Ln in between.
- Consists of (14b), each means (14VI) (14V
2) (14V3), .

, (14Vn) directly scans the J number for city use.
By changing the opening force IJ, the beam b or each path Ll, L2 . L3
．． ．． ．． ．． ．． When the tube is switched to Ln and passes, it is deflected in the vertical direction along the surface direction of the tube (1).

In this way, the deflection F stage (7)-(8)→(13)→(
The electron beams b deflected by the electron beams 14) are introduced into the auxiliary deflection system formed between the fin light rfi (5) and the counter electric field FJI (12), and thereby the phosphor screen (5). There is an oval written above. In this case, the beam b is horizontally scanned on the phosphor screen (5) by being deflected by the horizontal deflection means (13) described above. That is, means (13)
For example, the deflection plate (
+3b) is given II- Ichikawa, the beam b is deflected toward the deflection plate (13b) as shown by the solid line in FIG. When landing at a close position and applying a positive voltage to the deflection plate (+3a) side, the electron beam is
Rande ink to a far away position. Also, at the same time as this horizontal scanning, the first and second vertical deflection means (8) and (
]4), the beam b is divided into its corresponding divided areas (5A1), (5A2) on the phosphor screen (5).
, (5A3).

, , 45An), respectively.

In addition, in the above-mentioned example, the first and second vertical parts 1
By the cooperation of the directing means (8) and (14), 'iJ'
(Xi * 1 (5) if the vertical scanning of beam b is performed or if
) can be omitted, and the first direct deflection -r stage (8) can be provided with each city scan (+j ''-;'Ichikawa).

-・In the position facing the fluorescent screen (5), the above-mentioned...I
X.

The detection terminal for detecting intensity/7 intensity light conversion from the index phosphor on the light surface (5), that is, the light −° turn, ~ conversion f− (15), is arranged, and from this, IU, index I, 1. The bow is properly processed by a processing circuit!
l. How to create a color image by modulating the intensity of the beam with one center at each tenting position on the electronic beat 311 beam (5)? ! Jru. That is, in this example, a color 1+l+i image is generated by the beat-intensity formula using one electron beam.

In the present invention, the number of phosphor screens is divided into two. ;'Electronic heat is applied to each da1 area;'
;'], and insert a plate-shaped support wall (16) between each of the divided regions of the seven fluorescent screens, that is, between the glass thin plates (9) formed from these telescope regions, and insert a plate-shaped support wall (16) between both panels (2). and (3), the support wall (16) is placed between the panels so that its surface runs along the thickness direction of the tube body (1), and the width of the support wall (16) regulates the distance between both panels. The end face in the width direction of (16) is brought into contact with the inner surfaces of both panels (2) and (3) either directly or indirectly. When the required potential difference is established between the fluorescent 1ni (5) and the dorsal city pole (I2), this support wall (16) will act as an auxiliary deflector as described above. If a system is formed, it is made of an insulator such as ceramic, or if a potential difference cannot be applied, it is made of a gold M plate. However, even when an auxiliary deflection system is formed, the carphone 'Y is not guided on the surface of the support wall (16) made of an insulator. It is desirable to form the tt layer in a stacked manner. Then, one end of a spring (17) such as a leaf spring is welded to both sides of both ends of each support wall (16), and both panels (2) and (
3) When placed between the springs (17), the free end of the spring (17) presses the crow 7 toward the plate (9) or panel (2) to maintain its position. do. In addition, in order to simplify the Ml height of this flat '1τ, as shown in Fig. 6, the - side (4b) of the outer circumference +4h (4) of the outer circumference +4h (4) and the inner circumference M ( r(4i)cy)
Side (4i2) (7) Each inner m1, each pair of protrusions (
18] are provided protrudingly, and these opposing pairs of protrusions (1
8) In between, each sentence 141±i': Insert both ends of (16) and determine its approximate value (+'f119. To this set of flat old bodies (1), °f and l'.

For example, if the inner peripheral wall (41) is placed on the panel (2),
The outer circumference! , 1t (4) and two sides of the outer peripheral wall (4) (
4a) In the area surrounded by fiyohi (4b) and inner peripheral wall (41) - C by le (2) l, each thin glass plate (9)
and the supporting wall (16) are inserted between each pair of protrusions (18) with both ends of each supporting wall (16) facing each other. Then, the side (4i1) of the inner peripheral wall (41) opposite to the side (4C) of the outer peripheral wall (4) and the adjacent Karasu & I (
9), a spring (20) is interposed between the glass thin plates (8) and the support wall (16) to press them toward the outer peripheral wall (4a) so that they are set at predetermined positions. Make it. In this state or before that,
'Each part to be assembled is assembled and placed on a self-supporting panel (3) or an outer peripheral wall (4) having an inner periphery 42 (ar),
Panel (2) and inner peripheral wall (41) and its outer peripheral wall (4)
These other end faces and the panel (3) are each flinted as well as the end face of the panel (3).

At this time, the free end of the spring (17) is connected to the conductive layer (11).
and each glass slat (8) is turned 4111 towards the panel (2) as described above.

Effects of the Invention According to the flat-11 type cathode ray tube according to the present invention described in Jl., the electron beam is divided and deflected to scan the divided regions of the phosphor screen, and the support wall is arranged between the divided regions. Therefore, the provision of this support wall does not obstruct the passage of the electron beam at all. By arranging the supporting wall between the two opposing glass panels that make up the flat tube in this way, it is possible to construct a tube that can withstand atmospheric pressure sufficiently, so it can be applied to large flat tubes. That JIJ profit is a dog.

[Brief explanation of the drawing]

us 11ΔlO Flat cathode according to the present invention! M? 1 ↑ An example of hemostatic diagram, Figure 2 is a partially cross-sectional surface diagram,
No. 31A is the m1 blood diagram of the A-A advance, FIG. 914 is a torso view of an example of the deflection means, FIG. 5 is an explanatory diagram thereof, and FIG. (This is an exploded perspective view of a snow jacket of an example of a ν cathode ray tube. (1) A 1i type cathode ray tube! i body, (2) and (3) a panel, (4) an outer peripheral wall. , (4I) is its inner circumference Q?, (5) is a fluorescent screen, (6) is an electron gun, (8 is a minute:!; (deflection means, (8) is a crow'i゛・l/plate, (16) is a supporting wall. Procedural Amendment January 171 1. Patent Application No. 215558 filed in 1988, filed last month 2. Title of invention Flat type, chi, pipe 3, oil stopper 1.1 Applicant address Tokyo and 11 Shinagawa Kita-Shinagawa 6 J” 1.17 355th name (2) 81 Sony Corporation Representative Director 9.ij'! Role Dai 'i'i 1Jlj,) A15, Supplementary Order 1-1 attached, Showa month, 1-16,
The number of inventions that will increase due to the supplement is reduced to ``4 layers with high resistance as the older brother''.

Claims (1)

[Claims] The first and second panels are supported 111 facing each other via an outer circumferential wall and a support wall disposed within the outer circumferential wall.
An airtight space is formed by both panels 1 and 2.
'l''j'j body and 1E-r provided in the flat tube body
- gun and 1゛ [ placed on the inner surface of the first panel of J.
7 Light 1nj and the progress of the electron heat emitted from the electron gun 2 At each position, the L2 phosphor screen is divided into strips;
'In the three regions that were marked down' - 'Tun Gohim' minutes:
i! It is equipped with an r stage of divided deflection which is directed in the same direction as in the above-mentioned A1? The hyperemia is applied to each of the above-mentioned 1υ1111-shaped areas on a rectangular thin plate, and the supporting wall is the edge of the rectangular crow i'! I/snipped between the edges of the plate]. All arranged in the above strip-shaped X width of the fluorescent song
'1 flat is a cathode ray tube.