WO2005124809A1 - 画像表示装置の製造方法および製造装置 - Google Patents
画像表示装置の製造方法および製造装置 Download PDFInfo
- Publication number
- WO2005124809A1 WO2005124809A1 PCT/JP2005/011072 JP2005011072W WO2005124809A1 WO 2005124809 A1 WO2005124809 A1 WO 2005124809A1 JP 2005011072 W JP2005011072 W JP 2005011072W WO 2005124809 A1 WO2005124809 A1 WO 2005124809A1
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- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- reinforcing member
- cooling
- image display
- heater
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/40—Closing vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/39—Degassing vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/26—Sealing together parts of vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/38—Control of maintenance of pressure in the vessel
- H01J2209/389—Degassing
- H01J2209/3896—Degassing by heating
Definitions
- the present invention relates to a method and an apparatus for manufacturing an image display device having a vacuum envelope in which a reinforcing member is provided between opposed substrates.
- LCD liquid crystal display
- FED field emission display
- PDP plasma display
- SED Surface-conduction Electron-emitter Display
- the SED has a front substrate and a rear substrate that are opposed to each other with a predetermined gap.
- These substrates are joined together at their peripheral edges via side walls in the form of a rectangular frame, and the inside is evacuated to form a vacuum envelope having a flat flat panel structure. Further, in order to support an atmospheric pressure load applied to the front substrate and the rear substrate, a plurality of spacers serving as reinforcing members are provided between the substrates.
- Three color phosphor layers are formed on the inner surface of the front substrate, and a large number of electron-emitting devices corresponding to each pixel are provided on the inner surface of the rear substrate as an electron emission source for exciting and emitting the phosphor layer. They are aligned.
- a number of wirings for driving the electron-emitting devices are provided in a matrix, and the ends thereof are drawn out of the vacuum envelope.
- a high voltage of about 10 [kV] is applied between the substrates, and a drive voltage is selectively applied to each electron-emitting device via a drive circuit connected to the wiring.
- a drive voltage is selectively applied to each electron-emitting device via a drive circuit connected to the wiring.
- the thickness of the display device can be reduced to about several mm. Lighter and thinner than CRTs used as televisions and computer displays.
- the front substrate and the rear substrate are arranged in a vacuum device in a sufficiently separated state, and the entire vacuum device is subjected to high vacuum while baking both substrates. Exhaust until Then, when a predetermined temperature and a predetermined degree of vacuum are reached, the front substrate and the rear substrate are joined via the side walls and the spacer. At this time, a low melting point metal that can be sealed at a relatively low temperature is used as a sealing material.
- a spacer that supports an atmospheric pressure (vacuum pressure) load acting on the front substrate and the rear substrate of the vacuum envelope is provided with a spacer, for example, in which both ends are imaged so as not to degrade image display performance at the holding portion. It is formed of a thin plate-like member extending to the outside of the display area, and both ends of the spacer are held on the substrate outside the image display area.
- the substrate is heated to a temperature of, for example, about 400 ° C. so that unnecessary gas is not generated from the substrate, and the surface adsorbed gas is released.
- a baking step to be performed and a heat treatment step such as a cooling step of cooling each substrate to a temperature of, for example, about 120 ° C are required.
- the substrate with the spacer mounted in an upright state is provided.
- the spacer When a heat treatment is performed on a back substrate (for example, a back substrate), the spacer is a thin band-shaped plate as described above, and has a significantly smaller heat capacity than the substrate. A difference in thermal expansion occurs, and when the temperature of the spacer becomes excessively high with respect to the substrate, the spacer expands, and as a result, the spacer may be bent and deformed. Such flexure and deformation of the spacer causes a problem such as a decrease in strength as a reinforcing member and a decrease in yield in a later assembling process.
- An object of the present invention is to provide a reinforcing member (for supporting an atmospheric load applied to a front substrate and a rear substrate). It is an object of the present invention to provide a method and an apparatus for manufacturing an image display device capable of efficiently manufacturing a vacuum envelope having a spacer with a high yield and improving reliability.
- a plurality of reinforcing members are arranged between a pair of opposed substrates in a standing state with respect to the plate surface of the substrate.
- a method of manufacturing a vacuum envelope of an image display device mounted thereon wherein in a heat treatment step of heating and cooling the substrate provided with the reinforcing member, the temperature of the reinforcing member is brought close to the temperature of the substrate. The temperature of the reinforcing member is controlled.
- the apparatus for manufacturing an image display device is a true image display device in which a plurality of reinforcing members are arranged between a pair of substrates opposed to each other in a standing state with respect to the plate surface of the substrate.
- An apparatus for manufacturing an air envelope wherein a heat treatment means for heating and cooling the substrate provided with the reinforcing member, and wherein the heating and cooling by the heat treatment means bring the temperature of the reinforcement member close to the temperature of the substrate.
- FIG. 1 is an external perspective view showing a vacuum envelope of an SED according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional perspective view of the vacuum envelope of FIG. 1 taken along the line II-II.
- FIG. 3 is a partially enlarged cross-sectional view showing the cross section of FIG. 2 in a partially enlarged manner.
- FIG. 4 is a diagram showing a configuration of a main part of a heating means according to an embodiment of the present invention, and an example of control of a radiation heat irradiation range.
- FIG. 5 is a diagram showing a state transition of a temperature change of a rear substrate and a spacer in the heat treatment according to the embodiment.
- FIG. 6 is a view showing a line configuration of a manufacturing apparatus to which the heating means according to the embodiment is applied.
- FIG. 7 is a diagram showing a configuration of a main part of a substrate manufacturing apparatus according to an embodiment of the present invention.
- FIG. 8 is a diagram showing a configuration of a main part of a substrate manufacturing apparatus according to another embodiment of the present invention.
- FIG. 9 is a diagram showing an example of spacer temperature control according to each of the above embodiments.
- FIG. 10 is a diagram showing an example of spacer temperature control according to each of the above embodiments.
- FIG. 11 is a diagram showing an example of spacer temperature control according to each of the above embodiments.
- FIG. 12 is a diagram showing a line configuration of a manufacturing apparatus according to each of the above embodiments.
- an SED will be described as an example of an image display device having a vacuum envelope to which the present invention is applied, and its configuration will be described with reference to FIGS.
- FIG. 1 is a perspective view showing the vacuum envelope 10 of the SED in a state where the front substrate 2 is partially cut away.
- FIG. 2 shows the vacuum envelope 10 of FIG.
- FIG. 3 is a partially enlarged cross-sectional view in which the cross section of FIG. 2 is partially enlarged.
- the SED includes a front substrate 2 and a rear substrate 4 each made of a rectangular glass plate, and these substrates are spaced apart from each other by about 1.0 to 2.0 mm. They are arranged facing each other in parallel.
- the rear substrate 4 has a size one size larger than the front substrate 2.
- the front substrate 2 and the rear substrate 4 are joined to each other via a rectangular frame-shaped side wall 6 made of glass to form a vacuum envelope 10 having a flat flat panel structure with a vacuum inside. .
- a phosphor screen 12 that functions as an image display surface is formed on the inner surface of the front substrate 2.
- This phosphor screen 12 is configured by arranging red, blue, and green phosphor layers R, G, B, and a light-shielding layer 11, and these phosphor layers are formed in stripes or dots.
- a metal back 14 made of aluminum or the like is formed on the phosphor screen 12.
- Type electron-emitting device 16 is provided on the inner surface of the rear substrate 4, as an electron emission source for emitting electrons for exciting and emitting the phosphor layers R, G, and B of the phosphor screen 12, a large number of surface conduction sources for emitting electron beams are provided.
- Type electron-emitting device 16 is provided. These electron-emitting devices 16 are arranged in a plurality of columns and a plurality of rows corresponding to the pixels, that is, the phosphor layers R, G, and B. Each electron-emitting device 16 includes an electron-emitting portion (not shown), a pair of device electrodes for applying a voltage to the electron-emitting portion, and the like.
- a number of wirings 18 for applying a drive voltage to each electron-emitting device 16 are provided in a matrix. Its end is drawn out of the vacuum envelope 10.
- the side wall 6 functioning as a joining member is sealed to the peripheral portion of the front substrate 2 and the peripheral portion of the rear substrate 4 by a sealing material 20 (20a, 20b) such as a low melting point glass or a low melting point metal.
- a sealing material 20a, 20b such as a low melting point glass or a low melting point metal.
- the SED is a plate between the front substrate 2 and the rear substrate 4 serving as a reinforcing member for maintaining a vacuum withstand voltage, ie, supporting an atmospheric pressure (vacuum pressure) load acting between the substrates.
- a plurality of spacers are provided between the plate surfaces of the substrates.
- an elongated (band-shaped) spacer 8 using a thin glass plate is provided between the rectangular front substrate 2 and the rear substrate 4 at a certain interval along the long side of the substrate.
- a plurality of each are arranged in the standing state.
- Each spacer 8 is provided on an upper end 8 a that comes into contact with the inner surface of the front substrate 2 via the metal back 14 and the light shielding layer 11 of the phosphor screen 12, and on the inner surface of the rear substrate 4. And has a lower end 8b that abuts on the wiring 18 that is provided.
- the plurality of spacers 8 support an atmospheric pressure load applied from the outside of the front substrate 2 and the rear substrate 4, and maintain a predetermined distance between the substrates.
- the SED includes a voltage supply unit (not shown) for applying an anode voltage between the metal back 14 of the front substrate 2 and the rear substrate 4.
- the voltage supply unit applies, for example, an anode voltage between the two so that the potential of the back substrate 4 is set to 0 V and the potential of the metal back 14 is set to about 10 kV.
- a voltage is applied between the device electrodes of the electron-emitting device 16 via a drive circuit (not shown) connected to the wiring 18, and an electron-emitting portion of an arbitrary electron-emitting device 16 is provided.
- an anode voltage is applied to the metal back 14.
- the electron beam emitted from the electron emitting portion is accelerated by the anode voltage and collides with the phosphor screen 12.
- the phosphor layers R, G, and B of the phosphor screen 12 are excited to emit light, and a color image is displayed.
- the front substrate 2 provided with the phosphor screen 12 and the metal back 14 is prepared in advance, and the electron emission element 16 and the wiring 18 are further provided.
- Back substrate 4 with side walls 6 and spacers 8 bonded Keep in mind. Then, the front substrate 2 and the rear substrate 4 are placed in a vacuum chamber (not shown), and after evacuating the vacuum chamber, the front substrate 2 is joined to the rear substrate 4 via the side wall 6. As a result, an SED vacuum envelope 10 including a plurality of spacers 8 is manufactured.
- each substrate is heated to a temperature of about 400 ° C. so that unnecessary gas is not generated from each of the substrates during operation, and a surface adsorbed gas is released.
- a heat treatment step such as a king step, followed by a cooling step of cooling each of the above substrates to a temperature of about 120 ° C., is required.
- the baking step is a heat treatment step of heating each substrate to a temperature of about 400 ° C.
- the spacer 8 extends when the temperature of the spacer 8 becomes excessively high with respect to the rear substrate 4, and as a result, the spacer 8 is deformed into the spacer 8.
- radiant heat is applied from directly above the spacer 8 to heat the spacer.
- FIG. 4 shows an example of control of an irradiation range of radiant heat from a heater serving as a heat source together with a configuration of a main part of the heating means.
- the heating means has a plurality of tubular heaters 41 and a reflector 42 provided for each heater 41.
- support mechanisms such as the heater 41 and the reflector 42 are omitted.
- a mechanism for supporting each substrate at a predetermined position is not shown.
- Each of the heaters 41 is formed of a tubular lamp heater corresponding to the length of the spacer 8.
- Each heater 41 is provided in a direction substantially perpendicular to the back substrate 4 supported at a fixed position to be baked, that is, from directly above the spacer 8 attached to the plate surface of the back substrate 4. It is positioned and arranged to irradiate light.
- the radiant heat is applied to the plurality of spacers 8 arranged on the plate surface of the rear substrate 4 every two wires from directly above the spacers 8.
- a heater 41 is provided. The heating of each heater 41 is controlled by heating control means 43.
- the thin plate-shaped spacer 8 standing on the rear substrate 4 transfers the radiant heat to the side surface. It can be prevented from being heated directly by receiving it directly. As a result, an excessive temperature difference between the rear substrate 4 and the spacer 8 can be prevented, and defects such as deformation and radius of the spacer 8 can be reduced.
- a reflector 42 is provided for each heater 41 that irradiates radiant heat from directly above the spacer 8, and the reflector 42 reflects the radiant heat from the heater 41 by the reflector 42. And to control the range. In other words, by controlling the direction of reflection and the irradiation range of the radiant heat from the heater 41 by the reflector 42, the heater 41 is provided directly above the spacer 8 even when the heater 41 is not provided directly above the spacer 8. Can be baked in the same way as the spacer 8 Thus, radiant heat can be controlled so that an excessive temperature difference does not occur between the back substrate 4 and the spacer 8, and the back substrate 4 can be efficiently heated.
- Fig. 5 shows the state transition of the temperature change of 4 and spacer 8.
- the temperature curve of the rear substrate 4 is indicated by a symbol RP
- the temperature curve of the spacer 8 is indicated by a symbol SP.
- the back substrate 4 and the spacer 8 are not heated by considering the arrangement position of the spacer 8 as in the above-described embodiment, but not by the heating means considering the arrangement position of the spacer 8.
- the temperature curve of the spacer 8 when it is uniformly heated is indicated by a sign.
- the temperature curve of the spacer 8 can be shifted to the symbol SP indicated by a dashed line, and the symbol SP indicated by a solid line.
- the problem that an excessive temperature difference occurs between the rear substrate 8 and the rear substrate 4 can be eliminated.
- FIG. 6 shows a schematic structure of a vacuum processing apparatus 100 for manufacturing a vacuum envelope of an image display device using the heating means shown in FIG.
- the vacuum processing apparatus 100 includes a load chamber 101, a baking / electron beam cleaning chamber 102, a cooling chamber 103, a getter film deposition chamber 104, an assembly chamber 105, a cooling chamber 106, and an unload chamber 107.
- Each chamber of the vacuum processing apparatus 100 is configured as a processing chamber capable of performing vacuum processing, and all the chambers are evacuated when the vacuum envelope of the SED is manufactured.
- the processing chambers are connected by a gate valve (not shown).
- the two substrates 2, 4 and various members including the mounted components are heated to a temperature of, for example, about 400 ° C., and the surface adsorbed gas of each substrate is released, and the electron beam is removed.
- the entire surfaces of the phosphor screen surface and the electron-emitting device surface are each subjected to electron beam cleaning by deflection scanning.
- each substrate is heated to a temperature of about 400 ° C. so that unnecessary gas is not generated from each of the above substrates during operation. Releases adsorbed gas on the surface.
- the above-described heating means shown in FIG. 4 is used. That is, as described above, by irradiating radiant heat from directly above the spacer 8 to heat the rear substrate 4, the thin plate-shaped spacer 8 standing on the rear substrate 4 is turned on. Radiation heat is directly received on the side surface and is rapidly heated to prevent a problem that an excessive temperature difference is generated between the rear substrate 4 and the spacer 8 to be deformed or radiused.
- the reflector 42 controls the direction and range of reflection of the radiant heat from the heater 41, and the spacer 8 in which the heater 41 is located directly above the spacer 8 in which the heater 41 is not located directly above. Similarly to the case described above, the radiant heat is controlled so that no excessive temperature difference occurs between the back substrate 4 and the substrate.
- the front substrate 2 and the rear substrate 4 that have been degassed in the above-mentioned baking and electron beam cleaning chamber 102 are sent to a cooling chamber 103 having the features of the present invention, which will be described in detail later. It is cooled down to a moderate temperature. Further, the front substrate 2 and the rear substrate 4 cooled in the cooling chamber 103 are coated with a vacuum film as a getter film by vapor deposition outside the phosphor layer in a getter film deposition chamber 104, and then in an assembly chamber 105. Then, indium as a sealing material is energized and melted by a power source 120 to seal the substrates together, thereby forming a vacuum envelope. The sealed vacuum envelope is sent to the cooling chamber 106, cooled to room temperature, and taken out of the unloading chamber 107. Through the above steps, the vacuum envelope 10 of the SED is manufactured.
- the rear substrate 4 is heated by radiating heat from directly above the spacer 8 to heat the rear substrate 4.
- the thin plate-shaped spacer 8 in the upright position receives radiant heat directly to the side surface and is rapidly heated to be between the rear substrate 4 It is possible to solve the problem that the spacer 8 is deformed or radiused due to an excessive temperature difference. Further, by controlling the direction and range of reflection of radiant heat from the heater 41 by the reflector 42, the spacer 8 having the heater 41 directly above the spacer 8 is also provided for the spacer 8 having no heater 41 directly above. As in the case of 8, the radiant heat can be controlled so as not to cause an excessive temperature difference with the rear substrate 4, and the rear substrate 4 can be efficiently heated.
- a lamp heater is used as a heater for the spacer.
- the present invention is not limited to this.
- other heating elements such as a tungsten heater wire, a titanium-based heater wire, and a quartz heater may be used. May be used.
- the arrangement correspondence between the spacer and the heater is not limited to the embodiment, and may be, for example, a 1: 1 arrangement.
- the configuration of each substrate, the production line, and the like are not limited to the embodiments, and various changes can be made without departing from the scope of the present invention.
- the spacer 8 cools down quickly, thereby increasing the temperature difference between the rear substrate 4 and the spacer 8, and as a result, the spacer is removed from the rear substrate 4. 8 will peel or break, resulting in a significant decrease in yield.
- the temperature difference between the back substrate 4 and the spacer 8 cooled by the cooling means may cause peeling and destruction of the spacer 8.
- the temperature of the spacer 8 is controlled in the cooling atmosphere using the temperature control means and the heating means.
- the device in FIG. 12 is the same as the device in FIG.
- the vacuum processing apparatus 100 also includes a load chamber 101, baking, electron beam cleaning chamber 102, cooling chamber 103, getter film deposition chamber 104, assembly chamber 105, cooling chamber 106, and unload chamber 107. ing. Therefore, the description of the contents described with reference to FIG. 6 is omitted here.
- the cooling chamber 103 of the vacuum processing apparatus 100 cools the front substrate 2 and the rear substrate 4 degassed in the baking and electron beam cleaning chamber 102 to a temperature of, for example, about 120 ° C.
- This cold In the chamber 103 as described above, the temperature difference between the back substrate 4 and the spacer 8 cooled by the cooling means does not reach a size that may cause peeling or destruction of the spacer 8.
- the temperature of the spacer 8 is controlled by the temperature control means and the heating means in the cooling atmosphere.
- cooling is performed while controlling the temperature of spacer 8 in the cooling atmosphere so as to match the temperature of rear substrate 4. Even if the product is large and rectangular, the spacer 8 provided along the long side of the product can be prevented from coming off the rear substrate 4 and from being damaged. And can be manufactured efficiently.
- FIG. 7 shows an outline of a manufacturing apparatus according to an embodiment of the present invention having a temperature control function of the spacer 8 in such a cooling atmosphere.
- cooling means such as a cooling plate, a heat reflecting plate of a heater serving as a heat source of a heating means, a support structure, and the like provided in a cooling chamber 103 for cooling the back substrate 4 heated in the baking step are omitted. Only the main components are shown.
- a plurality of spacers 8 are respectively provided in a standing state at regular intervals along the long side. Joined.
- a heating element serving as a heat source of a heating means for applying radiant heat to each of the spacers 8 is provided.
- a plurality of lamp heaters 51 are provided diagonally above the spacer 8 as heating elements for applying radiant heat to the spacer 8 with a sufficient distance for applying the radiant heat.
- Each of these lamp heaters 51 is connected to a temperature control section 52 that functions as a temperature control means.
- the temperature control section 52 controls the energization of each of the lamp heaters 51 in accordance with a preset temperature profile to control heat generation (light emission), and applies radiant heat to the corresponding spacer 8 on the substrate to thereby control the spacer 8. Heat.
- the temperature control unit 52 adjusts the spacer 8 on the rear substrate 4 placed in the cooling atmosphere of the cooling chamber 103 to the temperature decrease of the rear substrate 4.
- Temperature control That is, the temperature of the spacer 8 is always set within the range of the set temperature difference (for example, within 15 ° C.) with respect to the temperature of the rear substrate 4 to be cooled.
- the energization of each lamp heater 51 is controlled according to the set temperature profile. Specific energization control means for each lamp heater 51 at this time will be described later with reference to FIGS. 9 to 11.
- FIG. 8 shows an example of a more embodied configuration of a manufacturing apparatus according to an embodiment of the present invention having a temperature control function of the spacer 8 in a cooling atmosphere.
- a configuration incorporating a temperature control function of the spacer 8 is illustrated. ing.
- the temperature control unit 52 shown in FIG. 7 controls heat generation (light emission) of a lamp heater 61 described later according to a preset temperature profile.
- one surface of the rear substrate 4 to be cooled (the surface facing the front substrate 2) is provided with a plurality of spacers at regular intervals in a direction parallel to its long side. 8 are provided. These spacers 8 are made of, for example, thin plate-shaped glass, and are fixedly provided at both ends or a plurality of locations of the back substrate 4.
- the cooling chamber 103 is provided with a pair of cooling plates 60A and 60B for simultaneously cooling the rear substrate 4 to be cooled from both sides thereof.
- the cooling plate 60B having a cooling surface facing the plate surface on which the spacer 8 of the rear substrate 4 to be cooled is provided is provided through the cooling plate 60B.
- a slit-shaped through-hole (S) for providing radiant heat to the spacer 8 is provided in accordance with the length of the spacer 8.
- a lamp heater 61 and a heat reflecting plate 62 are provided above the through-hole (S) at a short distance from the cooling plate 60B so as to match the length of the spacer 8.
- the heat reflecting plate 62 may be provided integrally with the supporting structure of the lamp heater 61.
- Each lamp heater 61 is energized and controlled according to the temperature profile set by the temperature control unit 52 as described above when the substrate 4 is cooled in the cooling chamber 103, and the spacer is heated in the cooling atmosphere. Cool while controlling the temperature of 8 to match the temperature of rear substrate 4.
- the heat (heat light source) emitted from the lamp heater 61 is reflected directly or by the heat reflecting plate 62 and passes through the slit-shaped through-hole (S) provided in the cooling plate 60B, so that the rear substrate 4
- the upper spacer 8 is irradiated and heated by the radiant heat, and the temperature of the spacer 8 is controlled in accordance with the temperature of the rear substrate 4.
- FIGS. 9 to 11 show examples of controlling the energization of the lamp heater in the above-described embodiment.
- the energization is controlled in accordance with the temperature profiles set by the temperature control unit 52 described above.
- the example of the energization control shown in FIG. 9 is for continuously energizing the lamp heater.
- the temperature (TA) of the spacer 8 is changed to the temperature (TS) of the rear substrate 4.
- the voltage (EA) applied to the lamp heater is continually variably controlled so as to match.
- the example of the energization control shown in FIG. 10 is for intermittently (intermittently) energization control of the lamp heater.
- the temperature (TB) of the spacer 8 In the cooling atmosphere of the rear substrate 4, the temperature (TB) of the spacer 8
- the supply interval (duty) of the fixed time width voltage (EB) applied to the lamp heater is variably controlled so that it always falls within the range of the temperature difference set for the temperature (TS).
- the example of the energization control shown in FIG. 11 is for controlling the energization of the lamp heater step by step.
- the voltage applied to the lamp heater is adjusted so that the temperature (TC) of the spacer 8 falls within the range of the temperature difference always set with respect to the temperature (TS) of the rear substrate 4.
- EC is variably controlled in stages.
- the temperature difference between the rear substrate 4 and the spacer 8 provided on the substrate during cooling of the rear substrate 4 using the cooling means is kept within a certain range.
- a lamp heater is used as the heating means of the spacer 8.
- the power is not limited to this.
- the means for applying radiant heat to the spacer 8 via the cooling plate is not limited to the slit-shaped through-holes. For example, small holes and long holes arranged in a row along the spacer 8 Alternatively, a configuration may be adopted in which a heater for spacer heating is mounted on the cooling surface of the cooling plate without providing an opening in the cooling plate. Further, the heater used for the heating means, the structure of the heating means, the configuration of the substrate to be cooled, and the like are also limited to the above-described embodiments.
- the present invention can be applied to various substrates on which heat treatment is performed without departing from the spirit of the present invention.
- a vacuum envelope having a reinforcing member (spacer) that supports an atmospheric pressure load applied to a front substrate and a rear substrate can be produced at a high yield. It can be manufactured efficiently and reliability can be improved.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2006514790A JPWO2005124809A1 (ja) | 2004-06-18 | 2005-06-16 | 画像表示装置の製造方法および製造装置 |
EP05751569A EP1758142A1 (en) | 2004-06-18 | 2005-06-16 | Method and equipment for manufacturing image display device |
KR1020067026411A KR20070034493A (ko) | 2004-06-18 | 2005-06-16 | 화상 표시 장치의 제조 방법 및 제조 장치 |
US11/563,905 US20070087648A1 (en) | 2004-06-18 | 2006-11-28 | Image display unit manufacturing method and apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004180966 | 2004-06-18 | ||
JP2004-180966 | 2004-06-18 | ||
JP2004-226947 | 2004-08-03 | ||
JP2004226947 | 2004-08-03 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/563,905 Continuation US20070087648A1 (en) | 2004-06-18 | 2006-11-28 | Image display unit manufacturing method and apparatus |
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WO2005124809A1 true WO2005124809A1 (ja) | 2005-12-29 |
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PCT/JP2005/011072 WO2005124809A1 (ja) | 2004-06-18 | 2005-06-16 | 画像表示装置の製造方法および製造装置 |
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US (1) | US20070087648A1 (ja) |
EP (1) | EP1758142A1 (ja) |
JP (1) | JPWO2005124809A1 (ja) |
KR (1) | KR20070034493A (ja) |
TW (1) | TW200605124A (ja) |
WO (1) | WO2005124809A1 (ja) |
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JPH06342630A (ja) * | 1993-06-01 | 1994-12-13 | Canon Inc | 画像形成装置の製造方法及び画像形成装置 |
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JP2000315458A (ja) * | 1999-04-28 | 2000-11-14 | Toshiba Corp | 平面型画像表示装置の製造方法、および平面型画像表示装置の製造装置 |
JP2001336880A (ja) * | 2000-05-30 | 2001-12-07 | Ngk Insulators Ltd | プラズマディスプレイパネル焼成炉の均熱制御方法 |
JP2002015711A (ja) * | 2000-06-30 | 2002-01-18 | Matsushita Electric Ind Co Ltd | 赤外線電球及びそれを用いた装置 |
JP2003059403A (ja) * | 2001-08-09 | 2003-02-28 | Canon Inc | 画像表示装置の製造装置および製造方法 |
JP2003123651A (ja) * | 2001-10-12 | 2003-04-25 | Matsushita Electric Ind Co Ltd | プラズマディスプレイパネルの製造方法およびそのための炉設備 |
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JP2005129511A (ja) * | 2003-10-01 | 2005-05-19 | Canon Inc | 加熱処理装置、加熱処理方法、および画像表示装置の製造方法 |
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US6848961B2 (en) * | 2000-03-16 | 2005-02-01 | Canon Kabushiki Kaisha | Method and apparatus for manufacturing image displaying apparatus |
JP3754882B2 (ja) * | 2000-09-29 | 2006-03-15 | キヤノン株式会社 | 画像表示装置の製造法 |
US7110665B2 (en) * | 2003-10-01 | 2006-09-19 | Canon Kabushiki Kaisha | Thermal treatment equipment, thermal treatment method and manufacturing method of image display apparatus |
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2005
- 2005-06-16 WO PCT/JP2005/011072 patent/WO2005124809A1/ja not_active Application Discontinuation
- 2005-06-16 KR KR1020067026411A patent/KR20070034493A/ko not_active Application Discontinuation
- 2005-06-16 EP EP05751569A patent/EP1758142A1/en not_active Withdrawn
- 2005-06-16 JP JP2006514790A patent/JPWO2005124809A1/ja active Pending
- 2005-06-17 TW TW094120310A patent/TW200605124A/zh unknown
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2006
- 2006-11-28 US US11/563,905 patent/US20070087648A1/en not_active Abandoned
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JPH06342630A (ja) * | 1993-06-01 | 1994-12-13 | Canon Inc | 画像形成装置の製造方法及び画像形成装置 |
JPH11135018A (ja) * | 1997-08-29 | 1999-05-21 | Canon Inc | 画像形成装置の製造方法、製造装置および画像形成装置 |
JP2000315458A (ja) * | 1999-04-28 | 2000-11-14 | Toshiba Corp | 平面型画像表示装置の製造方法、および平面型画像表示装置の製造装置 |
JP2001336880A (ja) * | 2000-05-30 | 2001-12-07 | Ngk Insulators Ltd | プラズマディスプレイパネル焼成炉の均熱制御方法 |
JP2002015711A (ja) * | 2000-06-30 | 2002-01-18 | Matsushita Electric Ind Co Ltd | 赤外線電球及びそれを用いた装置 |
JP2003059403A (ja) * | 2001-08-09 | 2003-02-28 | Canon Inc | 画像表示装置の製造装置および製造方法 |
JP2003123651A (ja) * | 2001-10-12 | 2003-04-25 | Matsushita Electric Ind Co Ltd | プラズマディスプレイパネルの製造方法およびそのための炉設備 |
JP2003279268A (ja) * | 2002-03-20 | 2003-10-02 | Ngk Insulators Ltd | ガラス基板の冷却方法 |
JP2005129511A (ja) * | 2003-10-01 | 2005-05-19 | Canon Inc | 加熱処理装置、加熱処理方法、および画像表示装置の製造方法 |
Also Published As
Publication number | Publication date |
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EP1758142A1 (en) | 2007-02-28 |
TW200605124A (en) | 2006-02-01 |
JPWO2005124809A1 (ja) | 2008-04-17 |
US20070087648A1 (en) | 2007-04-19 |
KR20070034493A (ko) | 2007-03-28 |
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