WO1998032148A1 - Procede de fabrication d'un afficheur - Google Patents
Procede de fabrication d'un afficheur Download PDFInfo
- Publication number
- WO1998032148A1 WO1998032148A1 PCT/JP1998/000118 JP9800118W WO9832148A1 WO 1998032148 A1 WO1998032148 A1 WO 1998032148A1 JP 9800118 W JP9800118 W JP 9800118W WO 9832148 A1 WO9832148 A1 WO 9832148A1
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- WO
- WIPO (PCT)
- Prior art keywords
- glass tube
- substrate
- display device
- image display
- calcined solid
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2217/00—Gas-filled discharge tubes
- H01J2217/38—Cold-cathode tubes
- H01J2217/49—Display panels, e.g. not making use of alternating current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
Definitions
- the present invention relates to a method for manufacturing an image display device in which a pair of substrates are arranged at a predetermined interval and a gas is sealed between these substrates.
- the present invention relates to a method for manufacturing an image display device which enables to manufacture an image display device having good productivity and good reliability even if gas is sealed at a pressure of about atmospheric pressure.
- a plasma display hereinafter, referred to as a plasma display
- a plasma display utilizing light emission from a phosphor due to ultraviolet radiation accompanying discharge.
- a pair of substrates are arranged so as to face each other, an ionizable gas is sealed between them, and a phosphor is arranged on the inner surface side of one of the pair of substrates. Discharge is performed in an ionizable gas, and image display is performed by light emission from the phosphor due to ultraviolet radiation accompanying the discharge.
- a discharge electrode for discharging is provided with a phosphor.
- the so-called DC PDP which is formed so as to face both the substrate and the other substrate and discharges in the thickness direction, and the discharge electrode is formed only on the substrate on which no phosphor is arranged, and
- the electrodes are broadly classified as so-called AC PDPs, in which the electrodes are covered with a dielectric layer and discharge occurs in the in-plane direction.
- a liquid crystal in which liquid crystal is sealed by applying a method of driving an active element such as a transistor for each display pixel and applying a so-called active matrix addressing method is used.
- An image display device (hereinafter, referred to as a TFT liquid crystal display) that drives a layer has attracted attention.
- an image display device using a discharge plasma instead of a semiconductor device such as a MOS transistor or a thin film transistor as an active device.
- Such an image display device includes a plasma cell having a plurality of discharge electrodes and performing a plasma discharge, and a liquid crystal in which a second substrate having an electrode substantially orthogonal to the discharge electrode is an electro-optical material. And a display panel having a display panel that is overlapped with a liquid crystal layer interposed therebetween.
- a dielectric thin plate is disposed at a predetermined interval on a first substrate on which a plurality of discharge electrodes substantially parallel to each other are formed on one main surface.
- the gap between the dielectric thin plates such as the first substrate is filled with ionizable gas, and the periphery thereof is sealed with a seal portion.
- this plasma cell is divided into linear plasma chambers by partition walls, and plasma discharge can be performed in each plasma chamber.
- the second substrate has an electrode substantially orthogonal to the discharge electrode of the plasma cell formed on one main surface, and the second substrate has a dielectric surface of the plasma cell with the electrode formation surface facing the electrode. It is superimposed on the book via a liquid crystal layer.
- the liquid crystal is driven by sequentially switching and scanning each plasma chamber of the plasma cell, and applying a signal voltage to an electrode of a second substrate opposed to the liquid crystal layer in synchronization therewith.
- a portion where each plasma chamber intersects the electrode of the second substrate is defined as a pixel.
- a gas that can be ionized between a pair of substrates facing each other or between a first substrate and a thin dielectric plate as described above. Must be enclosed. Therefore, the gas is sealed by forming a through hole in the substrate, connecting a glass tube to the through hole, evacuating through the glass tube, filling the gas, and sealing the glass tube.
- This glass tube was sealed by heating the glass tube and compressing it in the radial direction with the external pressure of the atmosphere to burn it off and sealing the end naturally, or compressing it to a rod shape and cutting it. Done by the method.
- the pressure of the filled gas has been increasing. That is, in the past, it was sealed under a vacuum or a low vacuum pressure of less than 1 atm, but in recent years, the pressure has been increased to around 1 atm or more. It is being sealed by force.
- the pressure becomes higher than the atmospheric pressure, which is the external pressure, and it becomes difficult to seal the glass tube by the conventional method.
- the glass softens or melts, and the internal pressure becomes higher than the external pressure, so that this portion expands like a balloon. However, it may burst, making sealing impossible.
- exhaust and gas filling are performed using tubes made of oxygen-free copper, and gas is filled inside so as to be equal to or higher than the external pressure, and this is sandwiched and sealed.
- this method is not preferable because the cost is high and it is difficult to install a tube made of oxygen-free copper, so that the productivity is not good.
- the external pressure is set to 1 atm or more and the pressure inside the glass tube is apparently reduced to reduce the glass tube.
- a method of sealing or raising the temperature to near the glass softening point to cut out is considered.
- the method of sealing the glass tube is limited to a method such as heating sealing with a heating wire or high-frequency heating sealing, and it is necessary to seal the periphery of the sealing portion. They have to be processed individually, resulting in poor mass productivity and poor productivity.
- the present invention is applicable to an image display device in which the charged gas is at a high pressure, and is capable of producing an image display device with good mass productivity, high productivity, and high reliability. It is an object of the present invention to provide a method for manufacturing an image display device.
- a method of manufacturing an image display device comprises: a first substrate having a through-hole at a predetermined position; a plate material disposed at a predetermined interval; The first step of connecting a glass tube to the opening on the main surface opposite to the main surface of the through hole of the sealed sealing member facing the plate material, and connecting the through hole in the glass tube A second step of disposing the calcined solid frit held by the holding member near the portion, a third step of exhausting a gap between the first substrate and the plate material through the glass tube, A predetermined portion is radially compressed to form a constricted portion, and a calcined solid frit is left between the constricted portion and the opening of the through hole.
- a third step a fourth step of moving the calcined solid frit to a narrow portion of the glass tube, and a fifth step of filling the gap between the first substrate and the plate material with the gas through the glass tube.
- the holding member for the calcined solid frit is constituted by a metal plate inserted into the calcined solid frit and a panel part for holding the metal plate in a glass tube.
- the calcined solid frit may be removed along with the holding member and moved to the constriction by heating the metal plate with high frequency.
- the holding member for the calcined solid frit may be a ferromagnetic plate inserted into the calcined solid frit and a panel for holding the ferromagnetic plate in a glass tube.
- the ferromagnetic plate may be vibrated by an electromagnet to move the calcined solid frit together with the holding member to the constricted portion by its own weight.
- a plurality of discharge electrodes are formed on the first substrate as discharge electrodes substantially in parallel with each other, and a dielectric material plate is disposed as a plate material, and the hermetic sealing is performed.
- a plasma cell is formed as a member, and, after the sixth step, the electro-optic material layer is interposed on the dielectric register of the plasma cell, and the discharge electrode of the first substrate of the plasma cell is substantially orthogonal to the opposing surface.
- the method may have a step of laminating the second substrate on which the electrodes are formed.
- one of the first substrate and the plate member is formed by forming a plurality of discharge electrodes as discharge electrodes on the opposing surface substantially in parallel with each other.
- Is facing surface A discharge electrode may be formed by forming an address electrode substantially perpendicular to the discharge electrode and attaching a phosphor.
- one of the first substrate and the plate material is formed by forming a plurality of discharge electrodes as discharge electrodes on the opposing surface substantially in parallel with each other. May be formed by attaching a phosphor to the opposing surface, and the sealing member may be formed by forming an address electrode substantially orthogonal to the discharge electrode between the first substrate and the plate material.
- one of the first substrate and the plate member has a plurality of first electrodes formed on the opposing surface substantially in parallel with each other, and the other one is formed on the opposing surface.
- a second electrode substantially orthogonal to the first electrode may be formed and a phosphor may be attached.
- a hermetically sealed structure in which plate members are arranged at predetermined intervals on a first substrate having through holes at predetermined positions and the periphery thereof is sealed with a seal portion A glass tube is connected to the opening of the through hole of the member, a calcined solid frit held by a holding member is placed near the connection with the through hole in the glass tube, and the inside of the sealing member is connected via the glass tube.
- the glass tube is evacuated, and a predetermined portion of the glass tube is radially compressed to form a constricted portion, and a calcined solid frit is left between the constricted portion and the opening of the through-hole, and the calcined solid frit is made of glass.
- the calcined solid frit in the constricted part of the glass tube is melted and solidified to form the constricted part.
- the glass tube is virtually free
- the glass material is sealed by the lid material, and the glass tube itself needs to be sealed. This is sufficient even if the internal pressure of the gas inside the sealing member is increased to around 1 atm.
- FIG. 1 is a flowchart showing a method for manufacturing an image display device to which the present invention is applied.
- FIG. 2 is a cross-sectional view showing a process of connecting a glass tube to a plasma cell.
- FIG. 3 is a perspective view showing an example of a calcined solid frit held by a holding member.
- FIG. 4 is an enlarged perspective view showing a glass tube.
- FIG. 5 is an enlarged side view of a main part schematically showing a process of disposing a calcined solid frit in a glass tube.
- Fig. 6 is a flow chart showing a method for producing a calcined solid frit.
- C Fig. 7 is an enlarged side view schematically showing a main part of a process of compressing a glass tube ( Fig. 8 shows a calcined solid frit made of glass). It is a side view which shows typically an example of the state held by the constriction part of the pipe
- Fig. 9 is an enlarged view of the main part schematically showing the process of melting and solidifying the calcined solid frit. It is a side view.
- FIG. 10 is a sectional view showing a step of cutting the glass tube.
- FIG. 11 is a schematic cross-sectional view of a main part showing an example of an image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 12 is an enlarged schematic perspective view of a main part of an image display device manufactured by a method of manufacturing an image display device to which the present invention is applied.
- FIG. 13 is a schematic view showing a data electrode, a plasma electrode, and a discharge channel of the image display device.
- FIG. 14 is a perspective view showing another example of the calcined solid frit held by the holding member.
- FIG. 15 is a side view schematically showing another example in which the calcined solid frit is held in the constricted portion of the glass tube.
- FIG. 16 is a schematic cross-sectional view of a main part showing another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 17 is an exploded perspective view of a main part showing another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 18 is a schematic diagram showing display electrodes, address electrodes, and pixels of the image display device.
- FIG. 19 is a schematic cross-sectional view of a principal part showing still another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 20 is a schematic cross-sectional view of a principal part showing still another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 21 is an exploded perspective view of a main part showing still another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 22 shows an image display device manufactured by the manufacturing method of the present invention.
- FIG. 10 is a schematic cross-sectional view of a main part showing another example of a roughened image display device.
- FIG. 23 is a schematic cross-sectional view of a principal part showing still another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 24 is an exploded perspective view of a main part showing still another example of the image display device manufactured by the method for manufacturing an image display device to which the present invention is applied.
- FIG. 25 is a side view showing the relationship between the inner and outer diameters of the glass tube and the outer diameter of the constriction.
- a plasma cell formation ST 1 is performed. That is, as shown in FIG. 2, a first substrate having a through hole 14 at a predetermined position, and having a plurality of anode electrodes 9A and cathode electrodes 9K formed on one main surface 8a.
- a thin dielectric plate 3 is disposed on the base plate 8 at predetermined intervals by partition walls 10, and a plasma cell 2 whose periphery is sealed with a frit seal material 11 is prepared.
- a plasma electrode (discharge electrode) is formed on one main surface 8a on the inner side of the first substrate 8 as described above, and a plurality of lines are formed in parallel to each other.
- Anode electrodes 9A and cathode electrodes 9K are alternately formed in parallel in a predetermined direction at predetermined intervals to form a discharge electrode group.
- a partition wall 10 having a predetermined width extending along the electrode is formed substantially at the center of each of the upper surfaces of the anode electrode 9A and the force source electrode 9K.
- Each discharge channel 12 is between the partition walls 10. The top of each partition 10 is in contact with the lower surface of the dielectric thin plate 3, so that the size of the gap between the first substrate 8 and the dielectric thin plate 3 is kept constant.
- the dielectric thin plate 3 is made of thin glass or the like and functions as a capacity itself. Therefore, the dielectric thin plate 3 needs to be as thin as possible in order to sufficiently secure the electrical coupling between the electro-optical display cell described later and the plasma cell 2 and to suppress the two-dimensional spread of charges. Specifically, for example, it is preferably about 50 m.
- a frit seal material 11 using a low melting point glass or the like is provided along a peripheral portion of the first substrate 8 so that the first substrate 8 and the dielectric thin plate 3 are airtight.
- the plasma cell 2 is configured as a closed space.
- a gas that can be ionized in a later step is sealed in a closed space that is a gap between the first substrate 8 and the dielectric book 3.
- the gas to be filled for example, an inert gas or a mixed gas of an inert gas is used.
- glass tube connection ST2 is performed. That is, as shown in FIG. 2, the main surface 8 of the plasma cell 2 on which the anode electrode 9A and the cathode electrode 9K of the through hole 14 of the first substrate 8 are formed.
- the glass tube 15 is connected to the opening of the main surface 8 b opposite to a. c At this time, the glass tube 15 is bonded to the first substrate 8 by a bonding portion 2 made of a frit material. Fix with 2. At this point, both ends of the glass tube 15 are open ends.
- the glass tube 15 has an inner diameter larger than the diameter of the through hole 14. Further, as shown in FIG.
- a calcined solid frit arrangement ST3 in which a calcined solid frit is arranged in the glass tube 15 is performed.
- the calcined solid frit has a substantially cylindrical calcined solid frit 16 held by a holding member 17.
- the shape of the calcined solid frit may be any shape as long as it can be inserted into the glass tube 15, but a shape that is small and can secure a sufficient amount is preferable.
- the holding member 17 is partially inserted into the calcined solid frit 16 and is connected to the metal plate 18 holding the calcined solid frit 16 and the metal plate 18. It is composed of a fixing spring 19 for holding it in the pipe.
- the fixing spring portion 19 has a substantially semi-circular panel portion 19a that fits substantially on the inner wall of the glass tube, and a substantially U-shaped frame portion 19 connected to a substantial center of the panel portion 19a.
- the metal plate 18 is arranged at the tip of the frame portion 19b. That is, in the fixing spring portion 19, the frame portion 19b, the metal plate 18 and the calcined solid frit 16 are held on the inner wall of the glass tube by the elasticity of the bent portion of the panel portion 19a. Power will work.
- the calcined solid frit 16 is placed in a glass tube 15 connected to the opening of the through hole 14 in the main surface 8 b of the first substrate 8. Then, as shown in Fig. 5, the calcined solid frit 16 held by the metal plate 18 placed at the tip of the frame 19b by the elasticity of the bent portion of the panel 19a is made of glass. It is held along the inner wall 15 a of the tube 15, and the calcined solid frit 16 is held in the glass tube 15.
- This calcined solid frit 16 is manufactured as follows. You That is, as shown in FIG. 6, the FLIT molding ST11 is performed. That is, a small amount of a solvent containing a binder is mixed with the frit powder to prepare a frit powder, which is filled in a mold having a predetermined shape, and then processed into a predetermined shape by pressing. Next, calcining ST 12 is performed as shown in FIG. 6 (that is, the frit formed as described above is calcined under the condition of, for example, 39 ° C. for 10 minutes and calcined solid). Then, the holding member is attached ST13 as shown in Fig. 6. That is, the metal plate 18 of the holding member 17 formed in advance is heated by a heating means such as a small burner.
- a heating means such as a small burner.
- the plasma cell Evacuate the interior of the chamber 2. Perform the evacuation ST 4. That is, the interior of the discharge channel 12 of the plasma cell 2 is exhausted through the glass tube 15 as shown by an arrow A in FIG. In FIG. 2, the illustration of the calcined solid frit is omitted.
- compression ST 5 of the glass tube is performed. That is, as shown in FIG. 7, a predetermined position below the calcined solid frit 16 held by the holding member 17 of the glass tube 15, that is, an opening of a through hole (not shown) At a predetermined position where the calcined solid frit 16 is arranged between the predetermined position and the predetermined position, the outer periphery of the glass tube 15 is surrounded by a heating wire 20 or the like 20 and heated. Then, the heated portion of the glass tube 15 is softened, and the glass tube 15 is in a vacuum state. Therefore, the glass tube 15 is compressed in the radial direction by the outside air as shown in FIG. A constricted part 21 is formed.
- the calcined solid frit was moved ST6. U. That is, high-frequency heating is performed on the metal plate 18 of the holding member 17 that holds the calcined solid frit 16, and only the connection portion of the metal plate 18 with the calcined solid frit 16 is melted. Then, the calcined solid frit 16 is removed from the metal plate 18. Then, the calcined solid frit 16 detached from the holding member 17 as shown in FIG. 8 falls in the glass tube 15 and is caught by the constricted portion 21 and held there.
- gas introduction ST 7 for filling the ionizable gas into the plasma cell 2 is performed. That is, as shown by the arrow B in FIG. 2, the discharge channel 12 is filled with ionizable gas to be filled.
- the illustration of the calcined solid frit is omitted in FIG.
- the calcined solid frit 16 is melted and solidified, and the calcined solid frit melt-solidification and glass tube sealing ST 8 for sealing the glass tube 15 are performed. That is, as schematically shown in FIG. 9, a heater 22 composed of a heating wire or the like is arranged on the outer periphery of the constricted portion 21 of the glass tube 15 and the constricted portion 21 is heated. This heating may be performed at about 450 ° C. to 450 ° C. for about 2 minutes. Then, as shown in FIG. 9, the calcined solid frit 16 that has been hooked and held on the constricted portion 21 melts and closes the constricted portion 21. When the calcined solid frit 16 is solidified in this state, the constricted portion 21 of the glass tube 15 is sealed by the calcined solid frit 16.
- unnecessary glass tube cutting ST9 for cutting unnecessary portions of the glass tube 15 is performed. That is, as shown in FIG. 10, the glass tube 15 is cut at the constricted part 21 as shown by XY in the figure.
- a second substrate lamination S 10 is performed in which a second substrate is laminated on the dielectric thin plate 3 of the plasma cell 2 via a liquid crystal layer. That is, as shown in FIG. 11, the data electrode 5 which is substantially orthogonal to the anode electrode 9A and the cathode electrode 9K of the first substrate 8 is formed on one main surface 4a which is the facing surface.
- the second substrate 4 is laminated via a liquid crystal layer 7 to complete an image display device having a flat panel structure in which an electro-optical display cell 1 and a plasma cell 2 are laminated via a liquid crystal layer 7.
- the electro-optical display cell 1 is composed of a second substrate 4 as shown in FIGS. 11 and 12, and one main surface 4a inside the second substrate 4 is made of a transparent conductive material.
- the plurality of parallel electrodes 5 formed in parallel to each other are formed in parallel at a predetermined interval in a predetermined direction.
- this forming direction is referred to as a column direction.
- a plasma electrode (discharge electrode) is formed on one main surface 8a inside the first substrate 8, and is formed in a line parallel to each other.
- a plurality of anode electrodes 9A and cathode electrodes 9K are alternately formed in parallel in a predetermined direction at predetermined intervals to form a discharge electrode group.
- this forming direction is referred to as a row direction.
- a partition wall 10 having a predetermined width is formed substantially at the center of the upper surface of each of the anode electrode 9A and the cathode electrode 9K so as to extend along the respective electrode.
- the second substrate 4 of the electro-optical display cell 1 is bonded to the dielectric thin plate 3 via the spacer 6, and an electro-optical material is provided between the second substrate 4 and the dielectric thin plate 3.
- the liquid crystal is filled as a liquid crystal layer 7.
- the above-mentioned electro-optical material is other than liquid crystal. It is also possible to use
- the dimension of the gap between the second substrate 4 and the dielectric book 3 is, for example, 4 to 10 / zm, and is kept almost uniform over the entire surface.
- the second substrate 4 is laminated on the plasma cell 2 via the liquid crystal layer 7 which is an electro-optical material layer.
- a plurality of discharge channels 12 (plasma chambers) separated by the partition walls 10 are formed in parallel in the row direction. That is, the discharge channel 12 is formed so as to be orthogonal to the data electrode 5.
- each electrode 5 serves as a column drive unit and each discharge channel 12 serves as a row drive unit. As shown in FIG. 13, the intersection of the two corresponds to the pixel 13.
- the discharge channel 12 when a predetermined voltage is applied between the anode electrode 9A and the cathode electrode 9K corresponding to the predetermined discharge channel 12, the discharge channel 12 At this time, the encapsulated gas is ionized and plasma discharge occurs, and is maintained at the anode potential.
- the liquid crystal layer 7 corresponding to the plurality of pixels 13 arranged in the column direction corresponds to the discharge channel 12 where the plasma discharge has occurred.
- the discharge channel 12 becomes a floating potential, and the data voltage written to the liquid crystal layer 7 corresponding to each pixel 13 is written in the next writing period (for example, one field).
- the discharge channel 12 functions as a sampling switch, and the liquid crystal layer ⁇ of each pixel 13 has a sampling capacity. Functions as an evening.
- the liquid crystal operates by the temporary voltage written in the liquid crystal layer 7, and display is performed in pixel units.
- the discharge channels 12 for generating the plasma discharge are sequentially scanned, and a data voltage is applied to each of the data electrodes 5 in synchronism therewith. Similarly, the liquid crystal layer 7 is driven, and a two-dimensional image can be displayed.
- a calcined solid frit 16 held by a holding member 17 is arranged in a glass tube 15 for performing vacuum evacuation and gas filling in the plasma cell 2. Then, the inside of the plasma cell 2 is evacuated through the glass tube 15, and a predetermined portion of the glass tube 15 is radially compressed to form a constricted portion 21, and the constricted portion 21 and the plasma cell 2 are formed.
- the calcined solid frit 16 remains at the opening of the through hole 14 of the first substrate 8, the calcined solid frit 16 is removed from the holding member 17, and the constricted part 2 of the glass tube 15 After the gas is filled into the plasma cell 2 through the glass tube 15, the calcined solid frit 16 in the narrow portion 21 of the glass tube 15 is melted and solidified to form the narrow portion 21.
- the glass tube 15 is substantially covered and sealed with a frit material. As a result, it is not necessary to seal the glass tube 15 itself, and even if the internal pressure of the gas in the plasma cell 2 is increased to about 1 atm, it is possible to sufficiently cope with it.
- the glass Tube 15 is easily sealed, good mass productivity and good productivity ⁇
- the unnecessary portion of the glass tube 15 is cut after the calcined solid frit 16 is melted and solidified to seal the constricted portion 21 as described above. Also in this case, the reliability is ensured without affecting the inside of the plasma cell 2, and an image display device with good reliability is manufactured.
- the temperature at which the calcined frit 16 is melted is constant because heating with a heating wire is sufficient, and the fluctuation of the internal gas pressure due to this can be corrected by calculation.
- a holding member 37 consisting of a ferromagnetic plate 38 whose protruding portion 37a at the tip is inserted into the calcined solid frit 36 and a substantially U-shaped fixing spring portion 39 are also mentioned.
- a ferromagnetic plate 38 is attached to one end 39a of the fixing spring 39, and the ferromagnetic plate 38 at the other end 39b is directed toward the ferromagnetic plate 38. It is curved. That is, the elasticity of the bent portion of the fixing spring portion 39 exerts a force in the direction of separating the ferromagnetic plate 38 and the other end 39b.
- the method of manufacturing a PDP is substantially the same as the method of manufacturing an image display device that drives a liquid crystal layer using discharge plasma described above.
- the major difference is that the members used as the first substrate and the plate material are different (i.e., as shown in Figs. 16 and 17, in the case of the AC type PDP, the first substrate is A first substrate 58 in which a plurality of linear electrode electrodes 59 in parallel with each other are formed in parallel in a predetermined direction at a predetermined interval on one main surface 58a serving as an opposing surface. (Furthermore, in the first substrate 58, a line-shaped wall 60 is formed between these adjacent address electrodes 59 so as to extend along the address electrodes 59.
- a space defined by the partition wall 60 is formed in accordance with the electrode 59. Further, in the first substrate 58, the phosphors 56a and 5b cover the address electrodes 59. 6 b and 56 c are sequentially and repeatedly arranged. As 6b and 56c, phosphors of colors such as red, green, and blue are used. Then, at this time, in the first substrate 58, a through hole 64 is formed at a position where the address electrode 59 and the partition wall 60 are not formed.
- a second substrate 5 in which a plurality of display electrodes 55 formed of a transparent conductive material and having a line shape parallel to each other on one main surface 54 a serving as an opposing surface is formed as a discharge electrode. You are using 4.
- a bus electrode 53 (which is not shown in FIG. 16) which is laminated on a part of the display electrode 55 is also formed.
- a dielectric layer 61 and a protective layer 62 are sequentially formed so as to cover the display electrode 55 and the bus electrode 53 on the second substrate 54.
- the first substrate 58 and the second substrate 54 face each other such that the main surfaces 58a and 54a face each other, and the tip of the partition wall 60 is formed.
- a frit seal material 51 to form a sealing member 71 as shown in FIG.
- a space 52 surrounded by the protective layer 62 of the partition 60 and the second substrate 54 is formed in accordance with each address electrode 59 of the first substrate 58. It will be.
- the opening of the main surface 58 b opposite to the main surface 58 a which is the opposing surface of the through hole 64 of the first substrate 58 is free.
- the glass tube 65 is connected at the bonding portion 72 made of a metal material.
- the calcined solid frit is arranged in the glass tube 65 in the same manner as in the above-described manufacturing method.
- the calcined solid frit those described above are used.
- the inside of the sealing member 71 is evacuated through the glass tube 65, and then the glass tube 65 is compressed at a predetermined position, and a predetermined amount of the calcined solid frit is formed. And the gas is filled into the sealing member 71.
- the calcined solid frit is melted and solidified to seal the glass tube 65 in the same manner as in the above-described manufacturing method, and unnecessary portions of the glass tube 65 are cut off, as shown in FIG. Complete the AC type PDP as shown.
- display electrodes 55 serving as discharge electrodes are formed in a line shape parallel to each other on a second substrate 54, and a predetermined interval is provided between them. Are formed in parallel in a predetermined direction, and the discharge is performed between the adjacent display electrodes 55 and is performed in the plane direction. In this case, this forming direction is defined as a column direction.
- the address electrodes 59 are formed in parallel lines. Are formed in parallel in a predetermined direction with a predetermined interval.
- this forming direction is referred to as a row direction.
- each display electrode 55 is a column drive unit and each address electrode 59 is a row drive unit. As shown in FIG. 18, the intersection of the two corresponds to the pixel 57, and this pixel corresponds to the pixel 57.
- the phosphors 26a, 26b, and 26c arranged in the space 52 corresponding to the area are excited to form an image.
- an example in which a straight glass tube is used as the glass tube 65 has been described.
- an L-shaped glass tube 75 as shown in FIG. 19 can be used as the glass tube. It is.
- the AC PDP shown in Fig. 19 is almost the same as the AC PDP previously shown in Fig. 16. Therefore, the same reference numerals are given to the same portions, and description thereof will be omitted. If the glass tube 75 is L-shaped as described above, the thickness required for forming the glass tube 75 can be reduced, and the thickness of the entire PDP can be reduced.
- the size of the display device main body (substrate) becomes a hindrance when connecting the glass tubes in parallel.
- the spacing between the glass tubes arranged becomes wider, and the manufacturing equipment also becomes larger. Therefore, if the glass tube 75 is formed in an L shape as described above, the entire display device (substrate) becomes thin. Therefore, even when the glass tubes are connected in parallel, the distance between the display device bodies is reduced.
- the manufacturing equipment can be downsized and the manufacturing efficiency can be improved.
- the bending angle of the glass tube is not limited to approximately 90 degrees, and if the structure to which the present invention can be applied is employed, the bending angle may be larger or smaller than 90 degrees, and the bending portion may be smaller. There may be more than one.
- the first substrate has address electrodes formed on the opposing surface substantially in parallel with each other and has a fluorescent substance attached thereto, and a plurality of discharge electrodes are provided on the opposing surface as a plate material.
- a plurality of discharge electrodes may be formed substantially parallel to each other on the facing surface as the first substrate.
- a plate material in which an address electrode is formed on the opposing surface and a phosphor is adhered may be used.
- first substrate having a phosphor adhered to the opposing surface is used, and a plate having a plurality of discharge electrodes formed substantially parallel to the opposing surface is used as the first substrate.
- Address electrodes may be formed substantially parallel to each other between the first substrate and the plate material.
- a partition wall 80 in the form of a line parallel to one main surface 78 a serving as an opposing surface has a predetermined gap with a predetermined gap.
- the phosphors 76 a and 76 b are formed in parallel in the direction of
- a first substrate 78 on which 76 c is sequentially and repeatedly arranged is used ( these phosphors 76 a, 76 b, and 76 c include, for example, phosphors of colors such as red, green, and blue). And the adjacent partition walls are used.
- a plurality of parallel address electrodes 79 are formed in a space formed between 80 and 80.
- a plurality of address electrodes 79 are stacked on the phosphors 76a, 76b and 76c. It is formed as follows. That is, these address electrodes 79 are also formed in parallel in a predetermined direction at a predetermined interval.
- the through-hole 74 is formed at a position where the address electrode 79 and the partition wall 80 are not formed.
- the second substrate 54 used in the manufacture of the AC type PDP described above is used. Therefore, the same reference numerals are given here and the description is omitted.
- the first substrate 78 and the second substrate 54 face each other such that one main surface 78 a 5 a faces each other. Then, they are laminated so as to be in contact with the surface of No. 2, and the periphery thereof is sealed with a frit seal material 81 as shown in FIG.
- a space 82 surrounded by the partition wall 80 and the protective layer 62 of the second substrate 54 is formed according to each address electrode 79 of the first substrate 78.
- the above-mentioned address electrode is to be formed between the first substrate 78 and the second substrate 54 of the sealing member 91.
- the first electrode is formed.
- a glass tube 6 5 is provided at the opening of the main surface 7 8b opposite to the main surface 7 8b opposite to the through hole 7 4 of the substrate 7 8 with an adhesive portion 72 made of a frit material. Connect.
- the calcined solid frit is arranged in the glass tube 65 in the same manner as in the above-described manufacturing method.
- the calcined solid frit those described above are used.
- the sealing member 91 is evacuated via the glass tube 65, a predetermined position of the glass tube 65 is compressed, and the calcined solid frit is formed. The gas is moved to a predetermined position, and the sealing member 91 is filled with gas.
- each display electrode 55 becomes a column drive unit and each address electrode 79 becomes a row drive unit, and the intersection of both corresponds to a pixel.
- the phosphors 76a, 76b, and 76c arranged in the space 82 corresponding to the pixel are excited to form an image.
- an L-shaped glass tube 75 as shown in FIG. 22 can also be used as the glass tube. It is.
- the same portions are denoted by the same reference numerals and description thereof will be omitted. If the glass tube 75 is L-shaped as described above, the thickness required for forming the glass tube 75 can be reduced, and the thickness of the entire PDP can be reduced.
- the size of the display device main body (substrate) becomes a hindrance when connecting the glass tubes in parallel.
- the spacing between the glass tubes arranged becomes wider, and the manufacturing equipment also becomes larger. Therefore, if the glass tube 75 is formed in an L shape as described above, the entire display device (substrate) becomes thin. Therefore, even when the glass tubes are connected in parallel, the distance between the display device bodies is reduced.
- the manufacturing equipment can be downsized and the manufacturing efficiency can be improved.
- the bending angle of the glass tube is not limited to approximately 90 degrees, and if the bending angle of the glass tube is smaller or larger than 90 degrees as long as the structure to which the present invention can be applied is used, and the bending portion is smaller than 90 degrees. There may be more than one.
- the method of manufacturing the DC PDP is substantially the same as the method of manufacturing the AC PDP described above. The major difference is that the members used as the first substrate and the plate material are different.
- a planar quadrilateral is formed as an electrode on one main surface 98a serving as the opposing surface as the first substrate.
- a first substrate 98 on which a plurality of display anodes 99 A are formed is used.
- Some of the display anodes 99A are arranged in parallel in a predetermined direction at a predetermined interval, and the display anode lead 100A is disposed between these (not shown in FIG. 23).
- the display anode 99 A and the display anode lead 10 O A are connected via a resistor 102 A, thereby minimizing the discharge current value and extending the product life.
- auxiliary anodes 9B for example, in the form of a plane rectangle, are also formed. Are arranged in parallel with a predetermined interval in the direction, and these are connected by an auxiliary anode lead 100 B to form a line in a substantially predetermined direction and are formed substantially parallel to each other. Auxiliary electrodes are formed. The auxiliary anode 99 B and the auxiliary anode lead 100 B are connected via a resistor 102 B, so that the discharge current value can be suppressed small, and the product life can be extended.
- the display anode group is arranged in two rows, the auxiliary anode group is arranged in one row so as to be adjacent thereto, and the display anode group is arranged in two rows.
- a display anode 99A and an auxiliary anode are provided on the first substrate 98.
- the dielectric film 103 is disposed so as to cover the main surface 98 a on which the pole 99 B is formed.
- a hole 104 is provided at a position of the dielectric film 103 corresponding to the display anode 99A and the auxiliary anode 99B, and the other portions are insulated.
- a white film is used so as to reflect phosphor light emission.
- a through hole 12 is formed in a portion of the first substrate 98 where the display anode group and the auxiliary anode group are not formed.
- one main surface 114a serving as an opposing surface has line-like shapes parallel to each other in a direction substantially orthogonal to the above-described display electrode group forming direction.
- a plurality of cathodes 115 are formed in parallel in a predetermined direction at a predetermined interval.
- Substrate 1 1 4 is used.
- a frame-shaped partition 110 having a plurality of flat rectangular windows 105 is formed so as to cover the cathode 115.
- the partition 110 has a window 105 at a position corresponding to the display anode 99 A formed on the first substrate 98, and each display anode 9 9 A in the display anode group.
- Window portion 105 is formed at a position corresponding to.
- a groove 106 corresponding to the auxiliary anode group is formed at a position corresponding to the auxiliary anode 99B.
- the cathode 115 is arranged so as to be partially exposed from the window 105.
- the part is a display cell 1 1 2 A Works.
- one pixel is formed by the display cells 1 12 A adjacent to the front, rear, left and right, excluding the side surfaces of the partition walls 1 15 in these four display cells 1 12 A and the display anode 9 9 A portion.
- the phosphors 116 are arranged on the first substrate 98 side. For the phosphors 116, for example, those corresponding to the two display cells 112A may be set to green, and those corresponding to the remaining display cells 112A may be set to blue and red, respectively.
- the cathode 115 and the auxiliary anode 99B face each other, and this part functions as the auxiliary cell 112B, that is, two display cells 111A. Therefore, there is one auxiliary cell 1 1 2B.
- the auxiliary cell 1 1 2B is arranged such that charged particles and metastable particles generated by the discharge in the auxiliary cell 1 1 2 B enter the left and right display cells 1 12 A and lower the discharge starting voltage. Things.
- these first substrate 98 and second substrate 114 are faced so that one main surface 98a and 114a face each other. Laminated so that the tip of 10 is in contact with the surface of the dielectric film 103, and sealing around them with a frit sealing material 1 11, as shown in Fig. 23, and a sealing member 1 2 1 And
- the opening of the main surface 98 b opposite to the main surface 98 a which is the opposing surface of the through hole 124 of the first substrate 98 is formed.
- a glass tube 65 is connected at an adhesive portion 72 made of a frit material.
- the calcined solid frit is arranged in the glass tube 65 in the same manner as in the above-described manufacturing method. As the calcined solid frit, those described above are used.
- the inside of the sealing member 121 is evacuated through the glass tube 65, and then the pressure at a predetermined position of the glass tube 65 is increased. After compression, the calcined solid frit is moved to a predetermined position, and the sealing member 122 is filled with gas.
- the calcined solid frit is melted and solidified to seal the glass tube 65 in the same manner as in the above-described manufacturing method, and unnecessary portions of the glass tube 65 are cut off, as shown in FIG. Complete the DC-type PDP as shown.
- the phosphor 116 is excited in the display cell 112A to form an image.
- the glass tube 65 an example in which a straight glass tube is used as the glass tube 65 has been described.
- an L-shaped glass tube as described above can be used as the glass tube. If the glass tube is L-shaped, the thickness required for forming the glass tube portion can be reduced, and the thickness of the entire PDP can be reduced.
- the size of the display device main body (substrate) becomes a hindrance when connecting the glass tubes in parallel.
- the spacing between the glass tubes arranged becomes wider, and the manufacturing equipment also becomes larger. Therefore, if the glass tube 75 is formed in an L shape as described above, the entire display device (substrate) becomes thin. Therefore, even when the glass tubes are connected in parallel, the distance between the display device bodies is reduced.
- the manufacturing equipment can be downsized and the manufacturing efficiency can be improved.
- the bending angle of the glass tube is not limited to approximately 90 degrees, and if the structure is applicable to the present invention, the bending angle may be larger or smaller than 90 degrees, or a plurality of bent portions may be formed. It may be.
- a first substrate in which a plurality of electrodes serving as anodes are formed substantially in parallel with each other on an opposing surface is used, and an electrode serving as the anode on the opposing surface is used as a second substrate.
- an example was described in which an electrode serving as a cathode was formed substantially perpendicularly to the electrode and a phosphor was applied, and the first substrate was used. It is also possible to use a substrate on which an electrode is formed and a phosphor is adhered, and a second substrate having a plurality of electrodes serving as anodes formed on a facing surface substantially parallel to each other.
- a pair of float-lined glass sheets were arranged at a predetermined interval, and the periphery was sealed with a frit material to form a sealing member. I do. Then, a through-hole is provided in one of the pair of float-lined glass sheets of the sealing member, and a glass tube is connected to the through-hole. Further, a calcined solid frit is arranged in the glass tube, and after evacuation is performed through the glass tube, the diameter of the glass tube is set at a position where the calcined solid frit is disposed between the glass tube and the through hole. To form a constriction. Subsequently, the calcined solid frit was moved to the constriction to melt and solidify the calcined solid frit, and it was confirmed whether the sealing member was damaged, whether the glass tube was damaged, and the state of sealing.
- the pressure of the gas in the closed members the lkgf / cm 2 ⁇ 1. 2 kgf / cm 2, as the glass tube, the thermal expansion coefficient at 94 X 1 0 one 7 cm / cm / ° C, FIG. 2
- the outer diameter shown in the figure is 9. 2 mm
- an inner diameter shown in the figure D 2 was used a glass tube 145 of 5. 5 mm.
- the calcined solid frit shall be made using LS-0206 (trade name) manufactured by Nippon Electric Glass Co., Ltd., and molded at a pressure of 5 kg / cm 2 using a mold having an inner diameter of 5 mm. 390.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Gas-Filled Discharge Tubes (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69812497T DE69812497T2 (de) | 1997-01-16 | 1998-01-14 | Herstellungsverfahren einer bildanzeige |
US09/142,389 US6257945B1 (en) | 1997-01-16 | 1998-01-14 | Method for sealing a gas within a picture display device |
EP98900370A EP0895269B1 (en) | 1997-01-16 | 1998-01-14 | Method of manufacturing image display |
KR10-1998-0707341A KR100489317B1 (ko) | 1997-01-16 | 1998-01-14 | 화상표시장치의제조방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/5807 | 1997-01-16 | ||
JP580797 | 1997-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998032148A1 true WO1998032148A1 (fr) | 1998-07-23 |
Family
ID=11621364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000118 WO1998032148A1 (fr) | 1997-01-16 | 1998-01-14 | Procede de fabrication d'un afficheur |
Country Status (6)
Country | Link |
---|---|
US (1) | US6257945B1 (ja) |
EP (1) | EP0895269B1 (ja) |
KR (1) | KR100489317B1 (ja) |
DE (1) | DE69812497T2 (ja) |
TW (1) | TW358195B (ja) |
WO (1) | WO1998032148A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113867019A (zh) * | 2020-06-30 | 2021-12-31 | 成都天马微电子有限公司 | 液晶移相器以及制作方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3440906B2 (ja) * | 2000-01-07 | 2003-08-25 | 日本電気株式会社 | プラズマディスプレイパネルの製造装置とその製造方法 |
JP2004014332A (ja) * | 2002-06-07 | 2004-01-15 | Pioneer Electronic Corp | フラットディスプレイパネルおよびその製造方法 |
JP2004055480A (ja) * | 2002-07-24 | 2004-02-19 | Pioneer Electronic Corp | フラットディスプレイパネル |
JP2012032433A (ja) * | 2010-07-28 | 2012-02-16 | Sony Corp | 液体デバイス、および表示装置 |
RU2638070C2 (ru) * | 2011-09-13 | 2017-12-11 | Ферро Корпорейшн | Индукционная пайка неорганических подложек |
JP6979574B2 (ja) * | 2017-08-25 | 2021-12-15 | パナソニックIpマネジメント株式会社 | ディスプレイ製造装置および製造方法、ディスプレイ |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4120752Y1 (ja) * | 1964-06-13 | 1966-10-07 | ||
JPS5724620B2 (ja) * | 1974-08-07 | 1982-05-25 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1428958A (en) | 1972-12-08 | 1976-03-24 | Thorn Electrical Ind Ltd | Sealing of enclosures |
US3914000A (en) | 1973-04-16 | 1975-10-21 | Ibm | Method of making tubeless gas panel |
DE3016240A1 (de) * | 1980-04-26 | 1981-10-29 | Linde Ag, 6200 Wiesbaden | Verfahren zum behandeln einer waessrigen alkalischen loesung von salzen der anthrachinondisulfonsaeure |
US5797780A (en) * | 1996-02-23 | 1998-08-25 | Industrial Technology Research Institute | Hybrid tubeless sealing process for flat panel displays |
-
1997
- 1997-12-31 TW TW086120080A patent/TW358195B/zh active
-
1998
- 1998-01-14 US US09/142,389 patent/US6257945B1/en not_active Expired - Fee Related
- 1998-01-14 WO PCT/JP1998/000118 patent/WO1998032148A1/ja active IP Right Grant
- 1998-01-14 DE DE69812497T patent/DE69812497T2/de not_active Expired - Fee Related
- 1998-01-14 EP EP98900370A patent/EP0895269B1/en not_active Expired - Lifetime
- 1998-01-14 KR KR10-1998-0707341A patent/KR100489317B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4120752Y1 (ja) * | 1964-06-13 | 1966-10-07 | ||
JPS5724620B2 (ja) * | 1974-08-07 | 1982-05-25 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0895269A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113867019A (zh) * | 2020-06-30 | 2021-12-31 | 成都天马微电子有限公司 | 液晶移相器以及制作方法 |
CN113867019B (zh) * | 2020-06-30 | 2024-05-07 | 成都天马微电子有限公司 | 液晶移相器以及制作方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0895269A1 (en) | 1999-02-03 |
TW358195B (en) | 1999-05-11 |
US6257945B1 (en) | 2001-07-10 |
EP0895269B1 (en) | 2003-03-26 |
KR100489317B1 (ko) | 2005-09-14 |
DE69812497T2 (de) | 2004-02-19 |
KR20000064633A (ko) | 2000-11-06 |
DE69812497D1 (de) | 2003-04-30 |
EP0895269A4 (ja) | 1999-02-03 |
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