JP2006196366A - Spacer for image display devices, image display device and electron beam emission type image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spacer for an image display devices capable of simplifying manufacture of the spacer wherein holes through which electrons can uniformly pass to all pixels can be arranged and manufacture of an image display device and achieving excellent property, and to provide an image display device and an electron beam emission type image display device using the spacer. <P>SOLUTION: This spacer for the image display device keeps a proper interval between a substrate 8 provided with a light emitting part and a substrate 9 disposed facing the substrate 8. A first groove group 2 having a depth d1 satisfying 0<d1<T from one surface of a spacer substrate 13 to the thickness T is formed in the spacer substrate 13 comprising an insulator or a semiconductor. A second groove group 3 having a depth d2 reaching the first groove group 2 or longer, that is, satisfying T-d1<d2<T is formed in a direction intersecting the first groove group 2 from the surface of the other side of the spacer substrate 13 in the same pitch as the horizontal pitch of the light emitting part. The through holes 4 which an electron beam passes are opend to an intersection part of the first and second groove groups 2, 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a spacer for an image display device for maintaining an appropriate distance between a substrate provided with a light emitting portion, and a substrate disposed opposite to the substrate, an image display device including the spacer, and an electron beam emission type image display. Regarding the device, in detail, the spacer has a shape-specific structure, so that it is easy to achieve high definition without having a specific part on the image, and to prevent deterioration of color purity due to backscattered electrons. It is a thing.

  2. Description of the Related Art An electron beam emission type image display device such as a cold cathode display (FED) has a substrate provided with an electron beam emitting unit for emitting an electron beam, a substrate provided with a light emitting unit, and a vacuum between these two substrates at a predetermined interval. In general, a frame for holding the substrate and a spacer for maintaining an appropriate distance between the two substrates are generally provided. The spacers described above are required to have a strength to support the atmospheric pressure received by the two substrates, as well as to generally insulate the high voltage applied between the two substrates and maintain the potential difference between the two substrates. .

  Various types of spacers have been proposed for the electron beam emission type image display device described above. As a well-known type of spacer, there is a system in which spacers such as a cylindrical shape (rod type) and a rectangular parallelepiped shape (Wall type) are arranged at a predetermined interval. However, in this embodiment, a unique portion is provided on the image, for example, the electron beam is bent depending on the degree of charging of the spacer. In addition, various methods such as surface coating and low-resistance electrode formation have been proposed in order to keep unique portions within a visually permissible range, but this increases the burden on manufacturing and quality control. Moreover, even if these measures are taken, the singularity is not essentially lost, but a potential problem remains. For this reason, it is difficult to increase the definition of the image display device.

  Here, as another form of the spacer, a technique is disclosed in which a through hole is provided at a position corresponding to all pixels with respect to a structure covering the entire surface of the image so that there is no unique point on the image. Has been. (For example, see Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4).

  As another form, a technique of a structure in which independent spacers are arranged at positions corresponding to all pixels is also disclosed. (For example, see Patent Document 5 and Patent Document 6).

  Furthermore, as another form, a technique of a structure in which a part of the electron beam emitting portion and the light emitting portion is extended in the height direction and also serves as a spacer is disclosed. (For example, refer to Patent Document 7).

As another form, a technique of a spacer having a structure in which at least two sets of parallel gratings are assembled so as to cross each other is disclosed. (For example, refer to Patent Document 8).
Japanese Patent Laid-Open No. 02-299137 Japanese Patent Laid-Open No. 03-149728 Japanese Patent Laid-Open No. 03-205738 Japanese Patent Laid-Open No. 2004-22536 Japanese Patent Laid-Open No. 01-302642 JP 2003-149649 A JP 2002-42655 A Japanese Patent Laid-Open No. 2000-200568

  However, with the techniques of Patent Documents 1 to 4, it is difficult to vacuum the image display device. Alternatively, it is labor intensive to provide a through hole having a minimum area equivalent to that of a pixel deeply and accurately. Furthermore, it is difficult to produce a spacer having a gap of several mm or more.

  Further, in the techniques of Patent Document 5 and Patent Document 6, it is not necessary to provide a through hole. However, since it is necessary to manufacture a large number of parts and assemble them systematically, there are difficulties in manufacturing.

  Furthermore, in the technique of Patent Document 7, it is not necessary to handle an enormous number of parts, but it is difficult to provide a large gap. Further, since the spacer and the flat plate portion are not independent, if there is a defect in any one of them, both become defective products and productivity is inferior.

  Further, in the technique of Patent Document 8, a large number of plate materials are arranged in a parallel lattice shape so that they intersect with each other, and the same number of plate materials are assembled and fixed in a parallel lattice shape. There is a problem that productivity is inferior. Or, when a deep vertically long through-hole is cut through, manufacturing difficulties are involved.

  The present invention has been made to solve the above-described problems, and facilitates the manufacture of a spacer that can arrange holes through which electrons pass evenly for all pixels and the manufacture of an image display device. An object of the present invention is to obtain a spacer for an image display device capable of providing excellent characteristics, an image display device using the spacer, and an electron beam emission type image display device.

  In order to solve the above problems and achieve the object of the present invention, a spacer for an image display device according to claim 1 according to the present invention is provided with a substrate having a light emitting portion and another substrate disposed opposite to the substrate. A spacer of an image display device for maintaining an appropriate interval between substrates, wherein a depth d1 is 0 <d1 with respect to a thickness T from one surface of the spacer substrate with respect to a spacer substrate made of an insulator or a semiconductor. A first groove group that is <T is formed, and a depth d2 that reaches the first groove group in a direction intersecting the first groove group from the other surface of the spacer substrate, that is, T−d1 A second groove group satisfying <d2 <T is formed, and a through hole through which an electron beam passes is opened at an intersection of the first and second groove groups.

  The image display device according to claim 19 of the present invention is an image display provided with a spacer for maintaining an appropriate distance between a substrate provided with a light emitting portion and another substrate disposed opposite to the substrate. An apparatus, wherein a spacer substrate made of an insulator or a semiconductor is formed with a first groove group having a depth d1 of 0 <d1 <T with respect to a thickness T from one surface of the spacer substrate, A second groove group having a depth d2 greater than the first groove group, that is, T-d1 <d2 <T is formed in the direction intersecting the first groove group from the other surface of the spacer substrate. In addition, a spacer is provided in which a through hole through which an electron beam passes is mounted at an intersecting portion of the first and second groove groups.

  The electron beam emission type image display device according to claim 40 of the present invention provides a distance between a substrate having a light emitting portion and another substrate having an electron beam emitting portion disposed opposite to the substrate. An electron beam emission type image display device provided with a spacer for maintaining properness, wherein a depth d1 is 0 with respect to a thickness T from one surface of the spacer substrate with respect to a spacer substrate made of an insulator or a semiconductor. A first groove group that satisfies <d1 <T is formed, and a depth d2 that reaches the first groove group in a direction intersecting the first groove group from the other surface of the spacer substrate, that is, T A second groove group satisfying −d1 <d2 <T is formed, and a spacer is mounted so that a through-hole through which an electron beam passes is opened at an intersection of the first and second groove groups. To do.

  According to the spacer for an image display device, the image display device, and the electron beam emission type image display device according to the present invention, the image display device has a unique portion on the image because it is uniformly arranged for all the pixels of the image display device. Excellent image quality can be obtained. In addition, since it does not have a peculiar part in principle, it is not always necessary to make the spacer made of a special material so that the peculiar part is difficult to see. Therefore, the spacer can be made of an inexpensive material.

  In addition, since a deep through hole can be obtained by easy processing, a spacer for an image display device having a wide interval between the light emitting portion and the electron beam emitting portion can be realized. Further, due to the wide distance between the light emitting unit and the electron beam supply unit, even when the electron beam emission type image display device is driven at a high voltage, it is difficult for discharge to occur. Furthermore, the resistance value of the spacer can be increased due to the wide distance between the light emitting unit and the electron beam supply unit, so that the current flowing through the spacer can be suppressed, and power saving of the image display apparatus can be realized.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an image display device spacer, an image display device, and an electron beam emission type image display device according to the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a spacer applied to an image display device, and FIG. 2 is an enlarged perspective view of a part A of the spacer in FIG.
The spacer denoted by reference numeral 1 as a whole is made of a substrate having a predetermined thickness and having an area substantially equal to that of all light emitting portions of the image display device, and this substrate is made of an insulator material or a semiconductor material. Examples of the insulator material include glass and alumina (AL203). In addition, as a semiconductor material, for example, disclosed in Patent Document 9 as a semiconductor material for spacers, a ceramic in which any one of titania, molybdenum, niobium, tungsten, nickel or a plurality of heat resistant metals is added to alumina, or Further, a ceramic obtained by further adding cordierite or zirconia to the above-described ceramic can be used. In addition, the addition ratio of the substance constituting the ceramic is not limited to the value shown in the example of Patent Document 9, but may be a necessary distribution in order to obtain a desired value such as a resistance value.
Special table 2003-524280 gazette

Processing the spacer 1 from the substrate described above is performed as follows.
From one surface a of the substrate, a first groove group 2 is formed in parallel so that the depth d1 is 0 <d1 <T with respect to the thickness T of the substrate. A parallel second groove group 3 is formed in a direction intersecting with the first groove group 2 and a depth d2 that reaches the first groove group 2, that is, T−d1 <d2 <T. Is. Thereby, the spacer 1 in which the through-hole 4 is formed at a portion where the first groove group 2 provided with the first side wall 2a and the second groove group 3 provided with the second side wall 3a intersect each other. Processed. At this time, the first side wall 2 a and the second side wall 3 a are integrally connected by the column portion 5.

  When the spacer 1 processed in this way is mounted on a flat image display device, the electron beam emitted from the electron beam supply unit passes through the through-hole 4 and becomes 3 (B (blue), G (green), R (red)). The light emitting part (pixel) of the color can be reached.

  Here, in order not to have a peculiar light emitting portion on the image, the pitch of the grooves (each through hole 4) of the spacer 1 is set so that each image display device emits light as shown in FIG. It is preferable that the pitch is equal to the pitch of the portion 6. However, the function as a spacer can be achieved even if the pitches are not necessarily matched. For example, a slight deterioration in characteristics on the image is allowed, and the spacers can be easily manufactured by setting the pitch of the grooves to a multiple of the light emitting portion 6 (see FIGS. 4 and 5). In the case of FIG. 4, the first groove group 2 is a groove having a pitch corresponding to each light emitting section 6, whereas the second groove group 3 is a pitch having a pitch corresponding to three light emitting sections 6. In the case of FIG. 5, the first groove group 2 is a groove having a pitch corresponding to the three light emitting portions 6, whereas the second groove group 3 is one light emitting portion 6. It is a groove | channel of the pitch corresponding to.

  On the other hand, if the groove pitch can be reduced to one-multiple of the pitch of the light emitting portions 6 (see FIG. 6), even if the spacer is slightly dislocated when the spacer is attached to the image display device, it is even for all the light emitting portions. As a result, there are no singular points on the image.

  The width of the groove is preferably wider than the width of each light emitting unit 6 or electron beam supply unit in order to efficiently use the emitted electron beam (see FIG. 7). More preferably, the width of the groove is as wide as possible within a range in which the spacer can maintain the strength capable of maintaining the vacuum of the image display device.

  Further, the widths of the grooves 2 and 3 may be constant from the surface side to the deepest portion as shown in FIG. 7 or may be gradually changed. Considering the actual workability, it is common for the depth to go deeper as shown in FIG. 8, but if the work is possible, the back will spread as shown in FIG. 9, or as shown in FIG. Thus, the side wall may be made into the uneven surface 2b.

  Here, when the depth is wider as shown in FIG. 9, there is an advantage that the contact is stable because the spacer can have a wide contact area with the substrate which is the electron beam emitting portion or the light emitting portion. Also, the electron beam spreads little by little as soon as it is immediately after launch, but if the depth is wide, the distance between the electron beam and the side wall of the spacer is easily secured.

  In addition, when the side wall has an uneven surface 2b as shown in FIG. 10, the surface area ratio exposed to the obliquely incident electron beam is reduced, and as a result, the spacer can be prevented from being charged. is there.

  On the other hand, the width of the groove may be two steps as shown in FIG. That is, as shown in FIG. 12, the third groove having the same pitch from the same surface as the first groove group 2 and wider than the first grooves 2 and the depth d3 of 0 <d3 <d1. The fourth groove group 8 is formed, forming the group 7 and having the same pitch from the same surface as the second groove group 3 and wider than the second grooves, and the depth d4 is 0 <d4 <d2. You may make it form.

  With this configuration, for example, as shown in FIG. 13, when electrons emitted from the electron beam emitting portion collide with the side wall of the spacer, the spacer has a secondary electron emission coefficient larger than 1, and the collision occurs. More electrons are emitted than the emitted electrons, and the spacer is positively charged. Then, as the electrons progress toward a high voltage, the emitted secondary electrons are attracted to the positively charged spacer and collide with the spacer. This occurs repeatedly (hopping electrons). When this phenomenon occurs, the spacer surface becomes more and more positively charged. However, when the spacer has a step d, hopping electrons are blocked by the step, and charging can be suppressed. The necessary step is determined by a high voltage, a secondary electron emission coefficient, etc.).

  As shown in FIG. 14, the image display device according to the present invention is in a state where a substrate 9 having a light emitting unit 6 and a substrate 10 having an electron beam emitting unit are opposed to each other, and the inside thereof is maintained for maintaining a vacuum. An electron beam surrounded by the frame 11 and emitted from the electron beam emitting portion between the substrates 9 and 10 passes through the spacer 1 and enters the light emitting portion 6 made up of each pixel. Here, the spacers may be arranged so as to cover all the pixels on the image display surface as shown in FIG. 14, but a plurality of spacers 1a smaller than the full screen size as shown in FIGS. They may be gathered to cover the entire screen. By doing so, it is possible to manufacture the spacer with a small facility. Further, when the spacer has a defect, it is economical because only the defective spacer needs to be replaced.

  Moreover, the surface of the spacer which contacts the substrate provided with the light emitting part or the substrate provided with the electron beam emitting part may be covered with a low resistance conductor film 12 as shown in FIG. By doing so, all the conductor film portions have the same potential, and the electric field strength in the thickness direction of the spacer can be made constant.

  Further, all or part of the surface of the spacer may be coated with a material different from that of the spacer structure. For example, if the secondary electron emission coefficient is coated with a material close to 1 (generally carbon (C), chromium oxide (Cr203), etc.), charging can be suppressed even when electrons collide with the spacer surface, The trouble can be avoided.

  Furthermore, the spacer of the present invention may be directly attached to the light emitting surface of the image display device, but the spacer is provided with fixing portions 13 and 13 at positions corresponding to the outside of the light emitting screen as shown in FIG. The fixing portions 13 and 13 may be fixed with frit glass or the like outside the light emitting screen, and a spacer may be attached. By doing in this way, the choice of the method of attaching a spacer in an image display apparatus spreads.

  FIG. 18 shows a method of fixing with frit glass as an example. As another method, for example, as shown in FIGS. 19, 20, and 21, positioning holes 14 are provided at almost four corners of the attachment allowance 13 of the spacer 1. May be provided, and a pin 15 may be provided on the side of the substrates 9 and 10 having the light emitting part and the electron beam emitting part, and the positioning hole 14 and the pin 15 may be fitted and fixed. Alternatively, as shown in FIG. 22, a pin 15 may be provided on the spacer 1 side and a positioning hole 14 may be provided on the substrates 9 and 10 side. In this case, in order to maintain the airtightness of the image display device, the positioning hole is a hole that does not penetrate in the thickness direction.

  As another method, as shown in FIGS. 23 and 24, only the marking 16 is provided on the substrate on the light emitting unit 6 or the electron beam emitting unit side, and the spacer and the image display device are positioned relative to the positioning hole 14. Once the positioning is performed, a method of fixing by the frictional force between the substrate and the spacer using the atmospheric pressure applied to the two substrates after evacuation may be used.

  Here, in the present invention, when the pitch of the first groove group 2 of the spacer is equal to the pitch of the pixels in the vertical direction of the image display device or is equal to a plurality of times the pitch of the pixels, the spacer is imaged. When attaching to the display device, it is preferable to match the direction of the vertical arrangement of the pixels with the direction of the first groove group 2. Even if the directions do not match, the effect as a spacer is obtained, but the use efficiency of the electron beam is maximized, and a uniform image can be obtained on the entire screen when the directions as described above match. Further, it is preferable that the center of the groove coincides with the center of the light emitting unit or the electron beam supply unit.

  In the present invention, when the spacer is attached to the image display device, the surface provided with the first groove group 2 (the groove group whose direction is aligned with the vertical pixel arrangement) is provided on the substrate including the light emitting portion. The second groove group 3 (groove group whose direction is aligned with the horizontal pixel arrangement) may be provided so as to be in contact with the substrate provided with the light emitting portion. In each case, an advantage over the image is obtained.

Next, a description will be given of a case where light emitting portions of three colors B (blue), G (green), and R (red) are alternately arranged in the horizontal direction of the screen.
When the first groove group 2 of the spacer is in contact with the substrate provided with the light emitting portion, the three color light emitting portions are partitioned into side walls having a height as shown in FIG. As a result, even if backscattered electrons are generated from adjacent pixels of other colors, they are shielded by the side walls and the color purity is not impaired.

  When the second groove group 3 of the spacer is in contact with the substrate provided with the light emitting portion, the vertical direction is partitioned by the side wall of the spacer even if the light emitting portion is formed in the vertical stripe 6a as shown in FIG. Therefore, it functions as one pixel at a time and does not impair the focus. Note that since the stripe-shaped light emitting portion can take a wide light emitting area, high luminance can be realized.

When the spacer of the present invention is applied to an electron beam emission type image display device, it is preferable to select the material of the spacer in consideration of the following points and taking into account the design tolerance.
a. Insulator or semiconductor (preferably having a volume resistivity of 10 ³ Ω · m or more, more preferably having a volume resistivity of 10 ⁷ Ω · m or more) because it is assumed to be used under a high voltage. It is good that it is.
b. The light emitting part of the image display device generates a considerable amount of heat due to the collision of electron beams. In order to efficiently dissipate the heat, it is preferable to dissipate more heat not only from the surface of the substrate provided with the light emitting portion but also from the substrate side provided with the electron beam emitting portion. Therefore, the higher the thermal conductivity, the better the spacer material.
c. The substrate provided with the light emitting part is thermally expanded by the heat generated by the light emitting part. Accordingly, it is preferable to select a material having a coefficient of thermal expansion that minimizes the difference in thermal expansion between the substrate having the light emitting portion, the substrate having the electron beam emitting portion, and the spacer.
It is preferable that the d and spacer support the flat image display device, which is a vacuum vessel, in a state where the cross-sectional area of the through hole is as large as possible, that is, in a shape that allows more electron beams to pass. Therefore, the spacer is preferably made of a material having a high breaking strength.
e. If the spacer surface can be prevented from being charged, the electron beam is prevented from spreading when passing through the spacer, and can be used more efficiently. Moreover, discharge generation can be suppressed. Therefore, a material with a dielectric constant as low as possible that is unlikely to be charged, or a material that has a secondary electron emission coefficient close to 1 that does not easily induce charging (for example, a material that includes carbon (C) or chromium oxide (Cr203)). In addition, a material whose volume resistivity is not so large (preferably 10 ⁹ Ω · m or less) that the charge can be quickly removed is preferable.

Next, the manufacturing method of the spacer of this invention is demonstrated.
First, a substrate 17 made of an insulator or a semiconductor having an area and thickness equal to or larger than the molding size of the spacer is manufactured (see FIG. 27).

  Next, the surface of the substrate 17 is processed by polishing, cutting, or the like in accordance with the distance between the two substrates on the electron beam emitting portion side and the light emitting portion side of the image display device (see FIG. 28). If the necessary surface condition and thickness are ensured at the substrate manufacturing stage, this step is omitted.

  Subsequently, when a low resistance film is required on the surface of the substrate 17 (the portion corresponding to the end surface when the spacer is manufactured) that contacts the substrate provided with the light emitting portion or the substrate provided with the electron beam emitting portion, A low resistance film 18 is formed (see FIG. 29). Various methods such as sputtering, vapor deposition, plating, coating, and the like can be used as the film forming method, and the method is selected according to the purpose. The material is preferably a stable substance (Pt, Au, etc.) that does not cause migration even when a high voltage is applied. In order to increase the adhesive strength between the low resistance film and the substrate, an intermediate film may be formed.

  Next, the first groove group 2 is processed at a predetermined pitch, number, and depth from one surface of the substrate 17 (see FIG. 30). Thereafter, the spacer of the present invention can be manufactured by processing the second groove group 3 from the other surface at a predetermined pitch, number, and depth in a direction intersecting the first groove group 2 (FIG. 31). At this time, when the second groove group 3 is formed, the first groove group 2 is once filled with a resin or the like that can be easily removed later, and then the second groove group 3 is formed. By removing the resin filling the first groove group 2, processing becomes easy. For processing reasons, the processing order of the first groove group 2 and the second groove group 3 may be reversed. If the third groove 6 and the fourth groove 7 are necessary, they are processed at the same time. If the surface shape (roughness, etc.) is devised, it is performed after these processes.

Various methods can be considered as the groove processing.
For example, incision may be made directly by dicing or the like, and when sandblasting is used, a pattern opposite to the required groove shape is formed on the surface of the substrate with a protective film that cannot be cut by blasting. It is conceivable to remove the protective film after the grooves have been shaved. Further, depending on the material of the substrate, patterning by etching is possible. Furthermore, a method may be used in which grooves are formed from the beginning using press molding or casting at the stage of substrate manufacture. This method requires less waste.

  When the peripheral portion of the spacer is unnecessary, the peripheral unnecessary portion is removed as shown in FIG. For example, various methods such as dicing, polishing, pressing and breaking can be applied.

  When providing a spacer positioning mechanism or a fixing part outside the light emitting unit screen around the spacer, drilling or machining (see FIG. 33) is performed instead of removing the spacer peripheral part. Finally, a coating is applied to all or part of the spacer surface as necessary to complete.

  The coating is preferably made of a material having a low secondary electron emission coefficient from the viewpoint of charge suppression, such as C (carbon), Ti (titanium), Cr (chromium), Mn (manganese), and oxides and nitrides thereof. Film formation can be performed by a method such as sputtering, plating, or coating.

  In addition, it is preferable to perform cleaning appropriately between these steps to remove impurities and contamination. For the cleaning, a solvent and a cleaning method are selected depending on assumed impurities and contamination. At this time, it is also important not to damage the spacer body.

  According to the spacer for an image display device, the image display device, and the electron beam emission type image display device according to the present invention, the image display device has a unique portion on the image because it is uniformly arranged for all the pixels of the image display device. Excellent image quality can be obtained. In addition, since it does not have a peculiar part in principle, it is not always necessary to make the spacer made of a special material so that the peculiar part is difficult to see. Therefore, the spacer can be made of an inexpensive material.

  In addition, since a deep through hole can be obtained by easy processing, a spacer for an image display device having a wide interval between the light emitting portion and the electron beam emitting portion can be realized. Further, due to the wide distance between the light emitting portion and the electron beam emitting portion, even when the electron beam emitting image display device is driven at a high voltage, it is difficult for discharge to occur. Furthermore, the resistance value of the spacer can be increased due to the wide distance between the light emitting portion and the electron beam emitting portion, so that the current flowing through the spacer can be suppressed, and power saving of the image display device can be realized.

  In addition, according to the present invention, since the spacer and the substrate provided with the light emitting part and the electron beam emitting part are independent, it is excellent in design and manufacturability. That is, even if there is a defect in any part, only that part needs to be replaced. Alternatively, even if a design change is made on any part, no significant design change is made on other parts. The above-described manufacturability is further improved when the spacer is divided into small areas. That is, since the defective part is a small part, only the defective part is sufficient. Moreover, it becomes possible to manufacture with small equipment.

  Further, since the spacer may be attached to the image display device by one or a small number of parts, the assembly of the image display device is easy.

  Further, since the spacer of the present invention is provided with a large number of grooves, it is easy to evacuate the image display device to make a vacuum. If the combination of the above-described light emitting portion and the electron beam emitting portion can be combined, the tendency is further increased.

  Furthermore, since the spacer of the present invention is supported on the entire surface of the image display screen, it provides excellent atmospheric pressure resistance to the vacuum container. In addition, since the entire surface of the image display screen is supported, the heat generated in the light emitting portion can be efficiently transmitted to the electron beam emitting portion side, and the heat dissipation is excellent.

  Further, when the surface on which the first groove group 2 of the spacer is provided is arranged so as to be in contact with the substrate side provided with the light emitting part, it is possible to shield the backscattered electrons that enter from the light emitting part to another light emitting part. And provides excellent color reproducibility to the image display device. Further, in the case where the surface provided with the second groove group 3 is arranged so as to be in contact with the substrate provided with the light emitting portion, a vertical pixel can be formed even if a certain light emitting portion is formed in a stripe shape. In this case, the area of the light emitting portion is increased, and high luminance can be realized with the same energy.

  Further, when the spacer is installed in the image display device, it is not always necessary to fix it in the light emitting screen. (For example, fixing with a gripper or a frit is not necessary).

  In addition, a fixing portion can be provided around the spacer, and positioning and fixing can be performed with this attachment allowance. If the structure of the positioning hole or the knock pin is used, the spacer can be positioned very easily.

  Furthermore, since the image display device does not tilt or fall like a rod or a wall type spacer, stable quality can be obtained.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

It is an external appearance perspective view of the spacer for image display apparatuses applied to this invention. It is the perspective view which expanded a part A of the spacer of FIG. It is a top view of the spacer of the state which made the groove pitch of the spacer the same as the pitch of one light emission part of an image display apparatus. It is a top view of the spacer of the structure where the pitch of the 2nd groove group respond | corresponded to three light emission parts. It is a top view of the spacer of the structure where the pitch of the 1st groove group respond | corresponded to three light emission parts. It is a top view of a spacer when groove pitch is made into 1 / multiple of the pitch of a light emission part. It is a figure of the relationship between the width | variety of the groove | channel of a spacer, and a light emission part. It is a figure of the state which is so narrow that the width | variety of the groove | channel of a spacer goes back. It is a figure of the state which is so wide that the width | variety of the groove | channel of a spacer goes back. It is a figure by which the side wall of the spacer is made into the uneven surface state. It is the figure in which the level | step difference was formed in the groove | channel of the spacer. FIG. 12 is a detailed perspective view of FIG. 11. It is explanatory drawing when an electron collides with the side wall of a spacer. It is a figure of the image display apparatus which covered all the pixels with the integral spacer. It is a figure of the image display apparatus which covered all the pixels with the some spacer. It is a top view of the image display apparatus of FIG. It is a perspective view of a mode that the conductor film is covered on the surface of the spacer which contacts the board | substrate provided with the light emission part and the electron beam emission part. It is a figure of the state fixed to the image display apparatus by the fixing | fixed part provided in the spacer. a It is the top view which provided the knock pin in the board | substrate. b is a plan view in which a positioning hole is provided in the spacer. It is a side view of the board | substrate and spacer of FIG. FIG. 20 is a side view of the substrate and spacer of FIG. 19. FIG. 21 is a side view of the substrate and the spacer when the knock pin and the positioning hole are opposite to those in FIGS. 19 and 20. a It is the top view which provided the marking for positioning on the board | substrate. b is a plan view in which a positioning hole is provided in the spacer. It is a figure of the image display apparatus fixed with the frictional force of a board | substrate and a spacer at atmospheric pressure. It is explanatory drawing of a mode that the electron emitted from the electron beam emission part collided with the light emission part. It is a top view of the relationship with the spacer at the time of making a light emission part into stripe form. It is a perspective view of the board | substrate before being processed into a spacer. It is a perspective view of the state where the surface of the substrate was polished and the thickness was increased. It is a perspective view in the state where a low resistance film was formed on the surface of a substrate. It is a perspective view in the state where the 1st slot group was formed in the substrate. It is a perspective view in the state where the 2nd groove group was formed in the substrate. It is a perspective view of a mode that the outer periphery unnecessary part of a spacer is cut | disconnected. It is a perspective view of the state which opened the positioning hole in the spacer. It is a perspective view of the spacer completed by coating the surface of the spacer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1a ... Spacer, 2 ... 1st groove group, 3 ... 2nd groove group, 4 ... Through-hole, 5 ... Column part, 6 ... Light emission part, 7 ... 3rd groove group, 8 ... 4th Groove group, 9 ... substrate with light emitting part, 10 ... substrate with electron beam emitting part, 11 ... outer frame, 12 ... low resistance film, 13 ... fixing part, 14 ... positioning hole, 15 ... pin, 16 ... Marking, 17 ... substrate, 18 ... low resistance film

Claims (60)

A spacer for an image display device that holds a first substrate having a light emitting unit and a second substrate disposed opposite to a surface of the first substrate having a light emitting unit at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Formed,
On the other facing surface, a plurality of second groove groups are formed so as to intersect the first groove group and have a depth d2 in the range of T−d1 <d2 <T with respect to the thickness T of the spacer. And
An image display device spacer, wherein an opening is formed in a portion intersecting the first groove group and the second groove group.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group satisfying d3 <d1 is formed so that the center of the width of the first groove group coincides with the center of the width of the third groove group. Spacer for image display device.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. 3. The spacer for an image display device according to any one of 2 above.   2. A low-resistance film is formed on the entire surface or a part of one or both surfaces of a surface contacting the first substrate and a surface contacting the second substrate of the spacer. The spacer for an image display device according to any one of claims 3 to 4.   5. The spacer for an image display device according to claim 1, wherein an entire surface or a part of the spacer is coated with a material different from the structure.   A fixing portion for the image display device is formed in all or a part of the outer side from a region including all of the opening holes on a surface of the spacer in contact with the first substrate or the second substrate. The spacer for an image display device according to any one of claims 1 to 5. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. A spacer for an image display device that holds a second substrate opposed to the surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at a pitch P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. A group is formed at a pitch P2,
An image display device spacer, wherein an opening is formed in a portion intersecting the first groove group and the second groove group.   8. The spacer for an image display device according to claim 7, wherein each width of the first groove group is larger than a width of the plurality of light emitting units in the direction A. 9.   9. The image display device according to claim 7, wherein each width of the second groove group is larger than a width of the plurality of light emitting units with respect to the direction B. 10. Spacer. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. A spacer for an image display device that holds a second substrate opposed to the surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at the same pitch P1 or multiple times P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed with the same pitch P2 or multiple of P2,
An image display device spacer, wherein an opening is formed in a portion intersecting the first groove group and the second groove group. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. A spacer for an image display device that holds a second substrate opposed to the surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is the same as the pitch P1, or is formed by a plurality of P1.
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed of the same pitch P2 or a plurality of P2
An image display device spacer, wherein an opening is formed in a portion intersecting the first groove group and the second groove group.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group satisfying d3 <d1 is formed so that the center of the width of the first groove group and the center of the width of the third groove group coincide with each other. 12. The spacer for an image display device according to any one of 11 above.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. 13. The spacer for an image display device according to any one of items 12.   8. A low-resistance film is formed on the entire surface or a part of one or both surfaces of a surface contacting the first substrate and a surface contacting the second substrate of the spacer. The spacer for image display apparatuses of any one of Claims 13.   The spacer for an image display device according to any one of claims 7 to 14, wherein an entire surface or a part of the spacer is coated with a material different from the structure.   A fixing portion for the image display device is formed in all or a part of the outer side from a region including all of the opening holes on a surface of the spacer in contact with the first substrate or the second substrate. The spacer for an image display device according to any one of claims 7 to 15.   The region including all of the opening holes on the surface of the spacer in contact with the first substrate or the second substrate has the same region shape as the region including the plurality of light emitting portions on the first substrate. The image display device spacer according to any one of claims 7 to 16, wherein the image display device spacer has a region area of.   A region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer has a smaller area than a region including all of the plurality of light emitting portions on the first substrate. The spacer for an image display device according to any one of claims 7 to 16. A first substrate having a light emitting part and an image display device comprising a spacer for holding a second substrate disposed opposite to a surface of the first substrate having a light emitting part at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Formed,
On the other facing surface, a plurality of second groove groups are formed so as to intersect the first groove group and have a depth d2 in the range of T−d1 <d2 <T with respect to the thickness T of the spacer. And
An image display device comprising a spacer having an opening formed in a portion intersecting with the first groove group and the second groove group.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group in which d3 <d1 is provided with a spacer formed so that the center of the width of the first groove group and the center of the width of the third groove group coincide with each other. Item 20. The image display device according to Item 19.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is provided with a spacer formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. Item 20. The image display device according to any one of items 19 and 20.   A spacer having a low resistance film formed on the entire surface or a part of one or both surfaces of the surface contacting the first substrate and the surface contacting the second substrate of the spacer is provided. The image display device according to any one of claims 19 to 21.   The image display device according to any one of claims 19 to 21, further comprising a spacer coated on a whole surface or a part of the spacer with a material different from the structure.   A spacer having a fixing portion for the image display device is provided on all or a part of an outer side of a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer. The image display device according to any one of claims 19 to 23, wherein the image display device is an image display device. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. For an image display device that holds a second substrate opposed to a surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at a pitch P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. A group is formed at a pitch P2,
An image display device comprising a spacer having an opening formed in a portion intersecting with the first groove group and the second groove group.   26. The image display device according to claim 25, wherein each of the first groove groups includes a spacer having a width greater than a width of the plurality of light emitting units in the direction A.   27. The spacer according to claim 25, wherein each width of the second groove group includes a spacer that is larger than a width of the plurality of light emitting portions in the direction B. Image display device. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. For an image display device that holds a second substrate opposed to a surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at the same pitch P1 or multiple times P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed with the same pitch P2 or multiple of P2,
An image display device comprising a spacer having an opening formed in a portion intersecting with the first groove group and the second groove group. A plurality of light emitting portions are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting portions of the first substrate. For an image display device that holds a second substrate opposed to a surface at a predetermined interval,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is the same as the pitch P1, or is formed by a plurality of P1.
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed of the same pitch P2 or a plurality of P2
An image display device comprising a spacer having an opening formed in a portion intersecting with the first groove group and the second groove group.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group in which d3 <d1 is provided with a spacer formed so that the center of the width of the first groove group and the center of the width of the third groove group coincide with each other. 30. The image display device according to any one of items 25 to 29.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is provided with a spacer formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. Item 25. The image display device according to any one of Items 25 to 30.   A spacer having a low resistance film formed on the entire surface or a part of one or both surfaces of the surface contacting the first substrate and the surface contacting the second substrate of the spacer is provided. 32. The image display device according to any one of claims 25 to 31.   The image display device according to any one of claims 25 to 32, further comprising a spacer coated on a whole surface or a part of the spacer with a material different from the structure. .   A spacer having a fixing portion for the image display device is provided on all or a part of an outer side of a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer. The image display device according to any one of claims 25 to 33, wherein the image display device is an image display device.   The region including all of the opening holes on the surface of the spacer in contact with the first substrate or the second substrate is equivalent to a region including a plurality of light emitting portions on the first substrate and an equivalent region shape. 35. The image display device according to claim 25, further comprising a spacer having an area.   The spacer includes a spacer in which a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer has a smaller area than a region including all of the plurality of light emitting portions on the first substrate. 35. The image display device according to claim 25, wherein the image display device is a display device.   The direction of the first groove group coincides with the direction A of the plurality of light emitting sections, and the center position of the width of each groove of the first groove group and the center of the width with respect to the direction A of the plurality of light emitting sections. A spacer is provided so as to match a position, and a center position of a groove written by the second groove group and a center position of a width with respect to a direction B of the plurality of light emitting portions are provided. The image display device according to any one of claims 25 to 36.   The surface of the spacer, on which the first groove group is provided, includes a spacer disposed in a direction in contact with the first substrate. Image display device.   The surface of the spacer, on which the first groove group is provided, includes a spacer disposed in a direction in contact with the second substrate. Image display device. This is for an electron beam emission type image display apparatus having a spacer that holds a first substrate having a light emitting portion and a second substrate facing the surface of the first substrate having the light emitting portion at a predetermined interval. And
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Formed,
On the other facing surface, a plurality of second groove groups are formed so as to intersect the first groove group and have a depth d2 in the range of T−d1 <d2 <T with respect to the thickness T of the spacer. And
A spacer having an opening formed at a portion intersecting the first groove group and the second groove group is provided so that an electron beam emitted from the electron beam emission source passes through the opening hole. An electron beam emission type image display device.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group in which d3 <d1 is provided with a spacer formed so that the center of the width of the first groove group and the center of the width of the third groove group coincide with each other. Item 43. The electron beam emission type image display device according to Item 40.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is provided with a spacer formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. 42. The electron beam emission type image display device according to any one of item 40 or claim 41.   A spacer having a low resistance film formed on the entire surface or a part of one or both surfaces of the surface contacting the first substrate and the surface contacting the second substrate of the spacer is provided. The electron beam emission type image display apparatus according to any one of claims 40 to 42.   44. The electron beam emission type according to any one of claims 40 to 43, further comprising a spacer coated on the entire surface or a part of the spacer with a material different from the structure. Image display device.   A spacer having a fixing portion for the image display device is provided on all or a part of an outer side of a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer. 45. The electron beam emission type image display device according to any one of claims 40 to 44, wherein: A plurality of light emitting units are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting units of the first substrate. A second substrate having a plurality of electron beam radiation sources that are arranged opposite to a surface and emit electron beams toward the light-emitting unit to be written is used for an electron beam emission type image display device having a spacer that holds a predetermined interval. There,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at a pitch P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. A group is formed at a pitch P2,
A spacer in which an opening hole is formed in a portion intersecting the first groove group and the second groove group is provided so that an electron beam emitted from the electron beam emission source passes through the opening hole. An electron beam emission type image display device.   47. The electron beam emission type image display device according to claim 46, wherein each of the first groove groups includes a spacer having a width larger than a width of the plurality of light emitting portions in the direction A.   48. The electron according to claim 46, wherein each of the second groove groups includes a spacer having a width greater than a width of the plurality of light emitting portions in the direction B. Line emission type image display device. A plurality of light emitting units are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting units of the first substrate. A second substrate having a plurality of electron beam radiation sources that are arranged opposite to a surface and emit electron beams toward the light-emitting unit to be written is used for an electron beam emission type image display device having a spacer that holds a predetermined interval. There,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is formed at the same pitch P1 or multiple times P1,
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed with the same pitch P2 or multiple of P2,
A spacer in which an opening hole is formed in a portion intersecting the first groove group and the second groove group is provided so that an electron beam emitted from the electron beam emission source passes through the opening hole. An electron beam emission type image display device. A plurality of light emitting units are arranged at a pitch P1 with respect to an arbitrary direction A, and have a first substrate arranged at a pitch P2 with respect to a direction B intersecting the direction A with an angle θ, and the light emitting units of the first substrate. A second substrate having a plurality of electron beam radiation sources that are arranged opposite to a surface and emit electron beams toward the light-emitting unit to be written is used for an electron beam emission type image display device having a spacer that holds a predetermined interval. There,
On one opposing surface of the first substrate and the second substrate of the spacer, a plurality of first groove groups with a depth d1 of 0 <d1 <T with respect to the thickness T of the spacer Is the same as the pitch P1, or is formed by a plurality of P1.
The other opposing surface intersects the first groove group at an angle θ, and a plurality of second grooves with a depth d2 in the range of T−d1 <d2 <T with respect to the plate thickness T of the spacer. The group is formed of the same pitch P2 or a plurality of P2
A spacer in which an opening hole is formed in a portion intersecting the first groove group and the second groove group is provided so that an electron beam emitted from the electron beam emission source passes through the opening hole. An electron beam emission type image display device.   The first groove is wider than the first groove in the same direction and pitch from the same surface as the surface on which the first groove group is formed, and the depth d3 is 0 <with respect to the plate thickness T of the spacer. The third groove group in which d3 <d1 is provided with a spacer formed so that the center of the width of the first groove group and the center of the width of the third groove group coincide with each other. Item 51. The electron beam emission type image display device according to any one of Items 46 to 50.   The width is wider than each of the second grooves in the same direction and pitch from the same surface as the surface on which the second groove group is formed, and the depth d4 is 0 <with respect to the plate thickness T of the spacer. The fourth groove group satisfying d4 <d2 is provided with a spacer formed so that the center of the width of the second groove group and the center of the width of the fourth groove group coincide with each other. Item 52. The electron beam emission-type image display device according to any one of Items 46 to 51.   A spacer having a low-resistance film formed on the entire surface or a part of one or both surfaces of the surface contacting the first substrate and the surface contacting the second substrate of the spacer is provided. 53. The electron beam emission type image display device according to any one of claims 46 to 52.   The electron beam emission according to any one of claims 46 to 53, further comprising a spacer coated on a whole surface or a part of the spacer with a material different from the structure. Type image display device.   A spacer having a fixing portion for the image display device is provided on all or a part of an outer side of a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer. The electron beam emission type image display apparatus according to any one of claims 46 to 54, wherein:   The region including all of the opening holes on the surface of the spacer in contact with the first substrate or the second substrate is equivalent to a region including a plurality of light emitting portions on the first substrate and an equivalent region shape. The electron beam emission type image display device according to any one of claims 46 to 55, further comprising a spacer having an area.   The spacer includes a spacer in which a region including all of the opening holes on a surface in contact with the first substrate or the second substrate of the spacer has a smaller area than a region including all of the plurality of light emitting portions on the first substrate. The electron beam emission type image display device according to any one of claims 46 to 55, wherein:   The direction of the first groove group coincides with the direction A of the plurality of light emitting portions, and the center position of the width of each groove of the first groove group and the center of the width with respect to the direction A of the plurality of light emitting portions. A spacer is provided so as to match a position, and a center position of a groove written by the second groove group and a center position of a width with respect to a direction B of the plurality of light emitting portions are provided. The electron beam emission type image display apparatus according to any one of claims 46 to 57.   59. The surface according to any one of claims 46 to 58, wherein a surface of the spacer on which the first groove group is provided includes a spacer disposed in a direction in contact with the first substrate. Electron beam emission type image display device.   The surface of the spacer, on which the first groove group is provided, includes a spacer disposed in a direction in contact with the second substrate. Electron beam emission type image display device.

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