JP2005091662A - Image display apparatus, conveyance tool, and the conveyance method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display apparatus having a structure which can easily attach/detach a conveyance tool capable of conveying even a frame of a plane shape by imparting sufficient strength thereto to/from the frame, and to provide the conveyance tool. <P>SOLUTION: The image display apparatus is constituted so that a frame 3 for reinforcing an envelope 10 equipped with a front substrate and a rectangular back substrate arranged to face the front substrate is attached to the envelope 10 and that the frame 3 is provided with hooks 1 for making the conveyance tool easily attachable and detachable. The conveyance tool for conveying the image display device is provided with engaging means which are attached to the reflection member constituting the conveyance tool and are attached and detached to and from the hooks 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to an image display device, a conveying jig, and a conveying method.

  2. Description of the Related Art In recent years, various flat-type image display devices have been developed as next-generation lightweight and thin display devices that replace cathode ray tubes (hereinafter referred to as CRTs). Such image display devices include a liquid crystal display (hereinafter referred to as LCD) that controls the intensity of light using the orientation of liquid crystal, and a plasma display panel (hereinafter referred to as PDP) that emits phosphors by ultraviolet rays of plasma discharge. ), A feed emission display (hereinafter referred to as FED) that emits a phosphor by an electron beam of a field emission electron emitter, and a surface conduction electron emission display (hereinafter referred to as FED) that emits a phosphor by an electron beam of a surface conduction electron emitter ( Hereinafter referred to as SED).

  For example, an FED or SED generally has two substrates disposed opposite each other with a predetermined gap, and an envelope is configured by bonding the peripheral portions of these substrates to each other. With such FEDs and SEDs, the thickness of the envelope can be reduced to a few millimeters, making it lighter and thinner than CRTs currently used as television and computer displays. It can be achieved and power saving can be achieved.

In recent years, with the increase in the size of image display devices, the substrates constituting the envelope have also increased in size. However, as the size increases, the strength of the envelope decreases, the resonance frequency decreases, the weight increases, and so on. In order to increase the mechanical strength of the envelope, a structure in which a reinforcing frame is attached to the back side of the back substrate has been proposed. As such a frame, a structure in which a metal plate having approximately the same size as the back substrate is attached to the entire back surface of the back substrate, or a rectangular frame-shaped metal frame is fixed along the outer peripheral edge of the back substrate. Such a structure has been proposed (see, for example, Patent Document 1 and Patent Document 2).
Japanese Unexamined Patent Publication No. 2000-10493 (page 4, FIG. 2) Japanese Patent Laid-Open No. 11-146305 (page 4, FIG. 3)

However, in the case of a structure in which a metal plate is attached to the entire back surface of the back substrate as described above, the entire display device becomes heavy and thick, which hinders the original purpose of weight reduction and thickness reduction. Further, in the case of the above structure, there is a problem that the rate of improvement in the strength of the display device is lower than the rate of increase in weight or the like.

When using a thin rectangular frame-shaped metal frame, the above problems can be solved, but the strength of the central portion of the display device cannot be sufficiently increased, and when the display device is dropped or an external load is applied, Distortion tends to occur at the center. In addition, the rectangular metal frame has a new problem that it is difficult to maintain a sufficient strength against torsion. Furthermore, since a frame with a low-strength planar shape may be deformed by dropping or vibration when transported between manufacturing processes or transported by a truck, etc., a frame structure and transport jig that can be transported without damaging the frame strength are provided. I need it. Further, a structure in which the frame and the transfer jig can be easily attached and detached is required.

The present invention has been made in view of the above points, and an object of the present invention is to provide an image display having a structure in which a flat frame can be conveyed with sufficient strength and a frame can be easily attached and detached. It is in providing an apparatus and a conveyance jig.

In order to achieve the above object, an image display device of the present invention includes an envelope having a front substrate having a display surface, a rectangular rear substrate disposed opposite to the front substrate, and an outer surface of the rear substrate. A frame that is attached to the frame and that reinforces the envelope, and a hook that is attached to the frame and engages the frame with a conveying jig.

In order to achieve the above object, a transport jig of the present invention is a transport jig for transporting an image display device comprising an envelope having a display surface and a frame for reinforcing the envelope. A reinforcing member and an engaging means attached to the reinforcing member and attached to and detached from a hook provided on the frame are provided.

In order to achieve the above object, the transport method of the present invention is the transport method for transporting the image display device described above using the transport jig described above, wherein the hook provided on the frame is connected to the hook. An engagement step for engaging an engagement means provided on a conveyance jig, a conveyance step for conveying the image display device by the conveyance jig, and a release for releasing the engagement state of the hook and the engagement means And a process.

According to the present invention, it is possible to obtain an image processing apparatus and a conveying jig that can maintain a frame strength enough to prevent deformation of the frame even during a thin frame, and between the frame and the conveying jig. It is possible to obtain a structure that can easily engage and release the engaged state.

Hereinafter, an embodiment in which an image display device according to the present invention is applied to an SED will be described in detail with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the SED includes a front substrate 41 and a rear substrate 42 each made of rectangular glass as insulating substrates, and these substrates are arranged to face each other with a gap of 1 to 2 mm. Yes. The front substrate 41 and the rear substrate 42 are joined to each other through a rectangular frame-shaped member 43 to form a flat rectangular envelope 10 whose inside is maintained in a vacuum state. Between the inner periphery of the front substrate 41 and the frame member 43 and between the inner periphery of the rear substrate 42 and the frame member 43, for example, a low melting point metal sealing material such as indium or an indium alloy, frit, etc. They are joined by a low melting point sealing material such as glass.

A plurality of plate-like support members 14 are provided inside the envelope 10 in order to support an atmospheric pressure load applied to the front substrate 41 and the rear substrate 42. These support members 14 are arranged in a direction parallel to the short side of the envelope 10 and are arranged at a predetermined interval along a direction parallel to the long side. The shape of the support member 14 is not particularly limited to this, and for example, a columnar spacer or the like can be used.

A phosphor screen 15 functioning as a display surface is provided on the inner surface of the front substrate 41. The phosphor screen 15 has a phosphor layer 16 that emits red, green, and blue light, and a black light absorbing layer 17 on the matrix. A metal back 20 made of aluminum or the like is formed on the phosphor screen 15, and a getter film (not shown) is formed on the metal back.

On the inner surface of the back substrate 42, a large number of surface-conduction electron-emitting devices 18 are provided as electron-emitting sources that excite electrons by colliding with the phosphor layer 16. The electron-emitting devices 18 are arranged in a plurality of columns and a plurality of rows corresponding to each pixel, and are positioned to face the respective phosphor layers 16 on a one-to-one basis. Each electron-emitting device 18 includes an electron-emitting unit (not shown) and a pair of device electrodes for applying a voltage to the electron-emitting unit. A large number of wirings 21 for driving the electron-emitting devices 18 are formed in a matrix on the inner surface of the rear substrate 42, and the end portions are drawn out to the peripheral edge of the rear substrate.

In the SED configured as described above, when an image is displayed, an anode voltage is applied to the phosphor screen 15 and the metal back 20, and the electron beam emitted from the electron-emitting device 18 is accelerated by the anode voltage to phosphor. The phosphor layer 16 of the screen 15 is excited to emit light and display an image.

Next, a description will be given with reference to FIGS. 3 is a view in which the frame 3 is attached to the back substrate 42 of the envelope 10 and the hook 1 is attached to the frame 3. FIG. 4 is a view in which a conveying jig is attached to the hook 1 shown in FIG. FIG. 6 is a view showing a structure of engagement and release of the engagement state by the hook 1 and the rod 9 of the conveying jig, and FIG. 6 is a view showing the engagement member 25 and the ball blanker 11 attached to the rod 9. .

FIG. 3 is a perspective view of the frame 3 and the envelope 10. The frame 3 reinforces the envelope 10 and is attached to the back substrate 42 of the envelope 10 and has a slightly larger shape than the envelope 10.

Next, the hook 1 attached to the frame 3 will be described. The four hooks 1 are arranged with respect to the center O of the frame 3. The straight lines L and M in the figure pass through the center O and are approximately parallel to the two adjacent sides of the frame. X1, X2, Y1, and Y2 in the figure represent distances from the approximate center point 1 'of the hook 1 to L and M, and are represented by X1 = X2, Y1 = Y2. These hooks 1 use press-molded metal or non-ferrous metal. The hook 1 is formed with a coupling portion 1a, a coupling portion 1b, and an engaging portion 1c, and the engaging portion 1c is formed in a convex shape. In order to fix the hook 1 to the frame 3, a method is provided in which holes are formed in the connecting portion 1a and the connecting portion 1b of the frame 3 and the hook 1, and screws (not shown) are inserted into the holes and fixed, or the frame 3 and the hook The method of fixing through the rivet 13 (refer FIG. 6) to the hole provided in 1 coupling | bond part 1a and the coupling | bond part 1b part is applied.

Next, a detailed description of the conveying jig 5 shown in FIGS. 4 to 6 will be given. The transport jig 5 is an auxiliary tool used when transporting the image display device, and is used between manufacturing processes in which the SED or the like is transported from one process to the next process.

4 shows before and after engaging the conveying jig 5 and the frame 3, FIG. 4 (a) shows before engagement, and FIG. 4 (b) shows after engagement. The conveying jig 5 is composed of a rectangular frame member 5b and an X-shaped beam 5a that reinforces the frame member 5b. The frame member 5b and the X-shaped beam 5a are firmly fixed. The frame member 5b is provided with an engaging means for engaging the hook 1 and the conveying jig 5, and this engaging means comprises a knob 7, rods 9a and 9b, and an engaging member 25. Has been. The knob 7 is rotatably attached to the frame member 5b, and one end of each of the rods 9a and 9b is attached to the knob 7. The knob 7 is configured to advance and retract along the frame member 5b according to the rotation of the knob 7. ing. An engaging member 25 is attached to the other end of each of the rods 9a and 9b so that the engaging member 25 can engage with the engaging portion 1c of the hook 1.

The engagement between the frame 3 and the conveyance jig 5 and the release of the engagement state are performed by engaging portions 1c of the hooks 1 attached to the frame 3, and rods 9a and 9b attached to the conveyance jig 5. This is performed by engagement with an engagement member 25 attached to the tip of the. The rod 9a and the rod 9b are arranged symmetrically with respect to the knob 7 along the frame member 5b, and can be moved back and forth (slid) according to the rotation of the knob 7.

Next, FIG. 5 will be described. FIG. 5 is an enlarged view of the knob 7, rod 9a, and rod 9b of FIG. FIG. 5A shows a state before the engagement member 25 is engaged with the hook 1, and FIG. 5B shows a state after the engagement.

The engaging operation will be described with reference to FIG. By rotating the knob 7 in the arrow direction D and sliding the positions of the rod 9a and rod 9b, each end of which is attached to the knob 7, in the arrow directions B and C, respectively, the other end of the rod 9a and rod 9b. When the engaging member 25 attached to is inserted into the hook 1A and hook 1B attached to the frame 3, respectively, the engaged state shown in FIG.

FIG. 6 is an enlarged view showing that the engaging member 25 and the hook 1 are engaged when the engaging means provided on the conveying jig 5 shown in FIG. 5 is engaged with the hook 1. Has been. The engagement member 25 is provided with a ball blanker 11 supported by a spring (not shown) and capable of protruding and retracting from the engagement member 25. Next, the operation of the ball blanker 11 will be described. When the engaging member 25 slides in the direction of arrow B and the tip of the ball 11a of the ball blanker 11 comes into contact with the engaging portion 1c of the hook 1, the ball 11a is pushed and the spring contracts, and the ball 11a retracts. When the combined member 25 enters the inside of the engaging portion 1c and further slides, the ball 11a jumps out to the opposite side of the hook 1 by a spring force and is locked. The lock is attached to the transport jig 5 and the frame 3 and transported.

After the image display device is thus transported to a predetermined place by the transport jig 5, the mounting of the transport jig 5 and the frame 3 is released. Since this release can be achieved by performing the reverse operation of the engaging operation described above, a detailed description will not be given, but is performed as follows. In a state where the hook 1 and the engaging member 25 in FIG. 5B are engaged, the knob 7 is rotated in the direction opposite to the arrow D, and the rods 9a and 9b are slid in the directions opposite to the arrows B and C, respectively. By this slide, the engagement between the ball 11a of the ball blanker 11 and the engaging portion 1c of the hook 1 is released.

FIG. 7 shows a modification of the first embodiment. In the first embodiment, the hook 1 attached to the frame 3 with screws or the like is directly press-molded on the frame 3 to fix the frame 3 and the conveying jig 5 using the hook 1.

FIG. 8 shows a modification of the conveying jig 5 in the first and second embodiments. In the first and second embodiments, the conveying jig 5 is configured to use an X-shaped beam, whereas in the third embodiment, instead of the X-shaped beam as shown in FIG. The strength is maintained by using a combination of a flat plate and a top plate.

The perspective view which shows the external appearance of the front substrate of a SED which concerns on embodiment of this invention, and a back substrate. FIG. 2 is a sectional view taken along line AA in FIG. 1. The positional relationship figure of the flame | frame for display apparatuses of this invention, and a hook. The perspective view which attached the frame for display apparatuses of this invention, and the conveyance jig. (a), (b) The principal part figure of the flame | frame for display apparatuses which showed the motion of the rod and hook which were attached to the conveyance jig of this invention. The principal part figure of the flame | frame for display apparatuses which showed the ball blanker and hook which were attached to the conveyance jig of this invention. The perspective view of Example 2 of this invention. The perspective view of Example 3 of this invention.

Explanation of symbols

1 Hook 3 Frame 5 Transfer jig 7 Knob
9 Rod 10 Envelope 11 Ball plunger 13 Rivet 14 Support member 15 Screen 16 Phosphor layer 17 Black light absorbing layer 18 Electron emitting element 20 Metal back 25 Engaging member 41 Front substrate 42 Rear substrate 43 Frame member

Claims (6)

An envelope having a front substrate having a display surface and a rectangular rear substrate disposed opposite to the front substrate;
A frame attached to the outer surface of the back substrate and reinforcing the envelope;
An image display device comprising: a hook attached to the frame, and a hook for engaging the frame with a conveying jig. 2. The image display device according to claim 1, wherein the hook includes four pieces attached symmetrically with respect to a center of the frame. In a transport jig for transporting an image display device comprising an envelope having a display surface and a frame that reinforces the envelope,
A reinforcing member;
A conveying jig comprising an engaging means attached to the reinforcing member and attached to and detached from a hook provided on the frame. The reinforcing member is
A frame-shaped member;
The conveyance jig according to claim 3, wherein the conveyance jig is configured using an X-shaped beam fixed to the frame-shaped member. The engaging means includes
Knob,
A rod that can be advanced and retracted according to the rotation of this knob,
The conveying jig according to claim 3, wherein the conveying jig is constituted by a ball blanker attached to the rod and engaging with the hook. In the conveyance method which conveys the image display device according to claim 1 using the conveyance jig according to claim 3,
An engagement step of engaging engagement means provided on the transport jig with hooks provided on the frame;
A conveying step of conveying the image display device by the conveying jig;
A releasing step of releasing the engagement state between the hook and the engagement means;
A conveying method comprising:

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