WO2006035565A1 - プラズマディスプレイ基板用、電極および/またはブラックストライプの製造方法 - Google Patents
プラズマディスプレイ基板用、電極および/またはブラックストライプの製造方法 Download PDFInfo
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- WO2006035565A1 WO2006035565A1 PCT/JP2005/015683 JP2005015683W WO2006035565A1 WO 2006035565 A1 WO2006035565 A1 WO 2006035565A1 JP 2005015683 W JP2005015683 W JP 2005015683W WO 2006035565 A1 WO2006035565 A1 WO 2006035565A1
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- layer
- electrode
- plasma display
- mask layer
- laser beam
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- 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
- H01J9/02—Manufacture of electrodes or electrode systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
- H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/22—Electrodes, e.g. special shape, material or configuration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
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- 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
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
- H01J2211/20—Constructional details
- H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
- H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
- H01J2211/444—Means for improving contrast or colour purity, e.g. black matrix or light shielding means
Definitions
- the present invention relates to a method for producing an electrode and a Z or black stripe for a plasma display substrate, a plasma display substrate having an electrode and a Z or black stripe, and a plasma using the same. It relates to display panels.
- the plasma display panel (hereinafter also referred to as "PDP"! /, U) can be reduced in thickness and can be easily increased in size, and has features such as light weight and high resolution. It is attracting attention as a strong candidate to replace CRT.
- PDPs are broadly divided into DC and AC types, but the operating principle is based on the light emission phenomenon associated with gas discharge.
- the cell space
- the cell is defined by the partition wall 3 formed between the transparent front substrate 1 and the rear substrate 2 facing each other, and the visible light emission is small in the cell and the ultraviolet light emission efficiency is reduced.
- Peung mixed gas such as He + Xe and Ne + Xe. Then, plasma discharge is generated in the cell, and the phosphor layer 11 on the inner wall of the cell emits light to form an image on the display screen.
- a display electrode 5 made of a transparent conductive film on a transparent front substrate 1 and a part of the electrode Then, the bus electrode 6 is patterned and, if necessary, a black stripe 4 for pixel separation is patterned. Further, the address electrode 7 is formed on the rear substrate 2 by patterning. In order to secure insulation between the display electrode 5 and the address electrode 7 and to stably generate plasma, and to prevent the electrode from being eroded by plasma, the dielectric layer 8 and the MgO protective layer 9 are used. The display electrode 5, the bus electrode 6 and the black stripe 4 are covered (see Patent Document 1, Non-Patent Document 1, and Non-Patent Document 2).
- DC type PDP does not cover the display electrode with a dielectric layer and protective layer. Different from type.
- the display electrode 5 is desired to have a low resistance. Therefore, indium oxide containing tin oxide (hereinafter also referred to as “ITO”) has been generally used. This is often used because it has relatively low electrical resistance and is excellent in transparency, conductivity and patterning properties.
- ITO indium oxide containing tin oxide
- kites are expensive.
- the dielectric may erode the ITO and increase the specific resistance of ITO.
- the patterns of the display electrode 5, the bus electrode 6, and the black stripe 4 shown in FIG. 11 are usually formed by separately patterning the river page numbers by the photolithography 'etching process. Since the production process is long and expensive, and a strong acid or strong alkaline solution is used, an alternative to these methods, which has a large environmental load, is desired.
- Patent Document 1 Japanese Patent Laid-Open No. 7-65727
- Non-Patent Document 1 Tatsuo Uchida and Satoshi Uchiike, “Flat Dictionary of Flat Panel Displays”, Industrial Research Association, December 25, 2001, p. 583-585
- Non-Patent Document 2 Ken Okumura, “Flat Panel Display 2004 Practice”, Nikkei Business Publications, p. 176-183
- the problem to be solved by the present invention is that a display electrode using ITO of a plasma display panel, a bus electrode using Ag or CrZCuZCr, and optionally a black stripe using a black dielectric are made of the same material, Low environmental impact by forming in the same dry process Provide a method for manufacturing electrodes and Z or black stripes for plasma display substrates that can display clear images with low load, low resistance, no erosion by dielectrics, and anti-reflection on PDP displays There is.
- the present invention provides a plasma display substrate with electrodes and z or black stripes manufactured by this manufacturing method. Furthermore, it is to provide a PDP using this.
- the present invention includes the following electrode for plasma display substrate, method for producing electrode and Z or black stripe, and electrode and Z or black stripe produced thereby.
- a plasma display substrate and a PDP using the same are provided.
- the present invention irradiates a mask layer formed on a transparent substrate (mask layer forming step) with a first laser beam to display electrodes, bus electrodes, and possibly After forming an opening in the area corresponding to each pattern of black stripes (opening forming process), an antireflection layer that provides an antireflection effect and an electrode layer are continuously formed on the entire surface (antireflection layer forming process). And electrode layer forming step), the mask layer is peeled off again by irradiating laser light, and unnecessary layers are simultaneously removed (peeling step), for plasma display substrate, electrode and Z or black stripe manufacturing method .
- the mask layer is peeled off also on the transparent substrate by irradiating a second laser beam.
- the antireflection layer includes a first antireflection layer having chromate and Z or titanate and a second antireflection layer made of Cr and Z or Ti. preferable.
- the mask layer force is made of an organic material.
- the mask layer is composed of a material containing 10 to 99% by mass of the black pigment or black dye.
- the first laser light or the second laser light is a laser light having a wavelength of 500 to 1500 nm and an energy density of 0.1 to 5 jZcm 2 ! /.
- the absorptance of the mask layer with respect to the second laser light may be in front of the antireflection layer. It is preferable that the absorptance with respect to the second laser beam is twice or more.
- the absorptivity of the mask layer with respect to the first laser light is 70% or more.
- the opening has an overhang shape or a reverse taper shape.
- the electrode layer is made of copper, silver, aluminum or gold, and the electrode layer preferably contains Cr and Z or Ti.
- a Cr / Ti layer forming step of forming a layer of Cr and Z or T after the electrode layer forming step is provided.
- the method includes a step of forming a thin film layer before the mask layer forming step or after the peeling step, and removing a part of the thin film layer by irradiating the thin film layer with a third laser beam. It is preferable to do this.
- the present invention is a plasma display substrate provided with the electrode and Z or black stripe, which is produced by the method for producing the electrode and Z or black stripe, and also includes chromate oxide and Z or titanium.
- This is a plasma display substrate having a first antireflection layer that also has an acid strength, a second antireflection layer made of Cr and Z or Ti, and an electrode layer made of Cu in this order on a transparent substrate.
- the plasma display substrate is a plasma display front substrate, and the visible light reflectivity from the substrate side of the electrode and Z or the black stripe is 0% or less.
- the visible light reflectance is stipulated in JIS R3106 (1998), and the “substrate side” is the side of the surface on which the mask layer of the transparent substrate is formed.
- the present invention is a plasma display panel using the plasma display substrate.
- an ITO display electrode for a plasma display substrate manufactured using different materials a bus electrode using Ag or CrZCuZCr, and a black dielectric as the case may be.
- the black stripe was made of the same material, at low cost, with low resistance, It is possible to provide a method for manufacturing an electrode for a plasma display substrate and a Z or black stripe, which can be manufactured from a material having low erosion by a dielectric material and can display a clear image on a PDP display device.
- the electrode for the plasma display substrate can be obtained more inexpensively with a smaller number of manufacturing steps as compared with a conventional wet method such as photolithography 'etching process wet' lift-off method. And Z or black stripes can be produced. Furthermore, since it is a dry method using laser light, it has become a serious concern nowadays that it is not possible to use a large amount of chemicals such as a developer or an etchant as in the wet method. There is little worry of. Brief Description of Drawings
- FIGS. L (a) to (d) are schematic cross-sectional views of a plasma display substrate for illustrating the steps of a preferred embodiment of an electrode and a Z or black type manufacturing method for the plasma display substrate of the present invention.
- FIG. 1 is schematic cross-sectional views of a plasma display substrate for illustrating the steps of a preferred embodiment of an electrode and a Z or black type manufacturing method for the plasma display substrate of the present invention.
- FIGS. 2 (to (h) are schematic cross-sectional views of a plasma display substrate for illustrating the steps of a preferred embodiment of the electrode and Z or black type manufacturing method for the plasma display substrate of the present invention. is there.
- FIGS. 3 (a) to (g) are schematic cross-sectional views of a plasma display substrate for illustrating an opening forming step in the method for manufacturing electrodes and / or black stripes for the plasma display substrate of the present invention. is there.
- FIGS. 4 (a) to (D) are schematic cross-sectional views of a plasma display substrate for showing an opening forming step in the method for manufacturing an electrode and Z or black stripe for the plasma display substrate of the present invention. .
- FIGS. 5 (a) to (d) are schematic cross-sectional views of a plasma display substrate for illustrating an electrode forming step and an opening forming step in the method for producing a Z or black stripe for the plasma display substrate of the present invention. It is.
- FIG. 6 shows a plasma display substrate for a plasma display substrate according to the present invention, a plasma display substrate manufactured by a preferred embodiment of the method for manufacturing a Z or black stripe, and a substrate with an electrode and a Z or black stripe. It is a schematic plan view.
- FIG. 7 shows a plasma display substrate for a plasma display substrate according to the present invention, a plasma display substrate manufactured by a preferred embodiment of a method for manufacturing a Z or black stripe, and a substrate with an electrode and a Z or black stripe attached thereto.
- FIG. 2 is a schematic cross-sectional view taken along the line AA ′ in FIG.
- FIGS. 8 (a) to 8 (c) are cross-sectional views showing a schematic configuration of a plasma display substrate and a manufacturing apparatus for showing a manufacturing process of electrodes and Z or black stripes for the plasma display substrate in the example.
- FIG. 8 is a schematic configuration of a plasma display substrate and a manufacturing apparatus for showing a manufacturing process of electrodes and Z or black stripes for the plasma display substrate in the example.
- FIGS. 9 ((!) To (e) show a schematic configuration of a plasma display substrate and a manufacturing apparatus for showing a manufacturing process of an electrode and a Z or black stripe for a plasma display substrate in an example. It is sectional drawing.
- FIGS. 10 (!) To (h) are cross-sectional views showing a schematic configuration of a plasma display substrate and a manufacturing apparatus for a plasma display substrate, an electrode, and a Z or black stripe manufacturing process in the example. It is.
- FIG. 11 is a schematic diagram showing a schematic configuration of a conventional PDP.
- a preferred embodiment of the method for producing electrodes and Z or black stripes for the plasma display substrate of the present invention will be described in detail with reference to FIGS. 1 and 2. This preferred embodiment is an example, and the present invention is not limited to this.
- a mask layer 20 is formed on the transparent substrate 10 (FIGS. 1 (a) and (b) ), Mask layer forming step). Thereafter, the surface of the transparent substrate 10 on which the mask layer 20 is formed is The “surface” and the opposite surface are the “lower surface”.
- the mask layer 20 is irradiated with the first laser light 14 from the lower surface side through the photomask 12 to form an opening (FIGS. L (c) and (d), opening forming step).
- an antireflection layer that is, a first antireflection layer 30 and a second antireflection layer 32 are formed on the upper surface of the transparent substrate 10 and the upper surface of the mask layer 20 (FIG. 2 (antireflection layer forming step))
- the mask layer 20 is also irradiated with the second laser beam 15 with the lower surface side force to make the mask layer 20 transparent. Peel from the substrate 10 (FIGS. 2 (g) and (h), peeling step).
- the antireflection layer 30 on the upper surface of the transparent substrate 10, the antireflection layer 32 on the upper surface, and the electrode layer 40 on the upper surface. These layers act as electrodes and Z or black stripes.
- the transparent substrate 10 is made of a material that transmits a second laser beam to be described later (in the present invention, a material having a transmittance of 80% or more)!
- the mask layer 20, the first antireflection layer 30, the second antireflection layer 32, and the electrode layer 40 are formed.
- the mask layer 20 is not required by laser light irradiation from the transparent substrate 10 side (lower surface side). Can be peeled off.
- a specific example is a glass substrate.
- the mask layer 20 is formed on the surface of the transparent substrate 10 in the mask layer forming step.
- Mask layer 20 is not particularly limited as long as it is made of a material that causes so-called ablation that can be removed by irradiation with a first laser beam described later (hereinafter also simply referred to as "mask layer forming material"). .
- Such a mask layer forming material is preferably an organic material.
- the first laser beam having a low energy density can sufficiently form and peel off the opening.
- organic material include epoxy resin, polyethylene resin, polyimide resin, polyester resin, tetrafluoroethylene resin, and acrylic resin.
- the first laser beam 14 having a wavelength of 500 to 1500 nm and an energy density of 0.1 to 5 jZcm 2 is simply irradiated with 1 to 5 pulses in the opening forming process described later.
- the opening can be reliably formed without the mask layer 20 remaining on the surface of the transparent substrate 10 in the opening.
- the second laser beam 15 having a wavelength of 500 to 1500 nm and an energy density of 0.1 to 5 j / cm 2 is left on the transparent substrate 10 only by irradiating 1 to 5 pulses.
- the mask layer 20 can be reliably peeled from the transparent substrate 10 without causing damage to the first antireflection layer 30, the second antireflection layer 32, the electrode layer 40, and the like.
- the mask layer is preferably composed of a mask layer forming material containing 10 to 99% by mass, preferably 20 to 99% by mass of a pigment or dye.
- the pigment or dye is preferably a black pigment or black dye.
- the black pigment (dye) is not particularly limited as long as it is a compound that increases the absorption rate of the mask layer with respect to the first laser beam or the second laser beam.
- Specific examples thereof include carbon black, titanium black, Preferable examples include bismuth sulfide, iron oxide, azo acid dyes (for example, C ⁇ Mordant Blackl7), disperse dyes, and cationic dyes.
- carbon black and titanium black are preferable because they have a high absorptance for all laser beams.
- the absorptance for the first laser beam or the second laser beam is increased.
- the opening can be sufficiently formed and peeled by a low laser beam (eg, about 0.1 to about LjZcm 2 ).
- a low laser beam eg, about 0.1 to about LjZcm 2 .
- the wavelength is 500 to 1500 nm in the opening forming step to be described later.
- the first laser beam 14 having a Gee density of 0.1 to 5 j / cm 2 is irradiated with 1 to 5 pulses, so that the mask layer 20 does not remain on the surface of the transparent substrate 10 in the opening. Can be formed.
- the organic material containing such a black pigment (dye) is used as a mask layer forming material, the first laser beam 14 having a wavelength of 500 to 1500 nm and an energy density of 0.1 to UZcm 2 is used. Even if it is, the same effect can be obtained by irradiating 1 to 5 pulses.
- a wavelength force of 00 to 1500 nm and an energy density of 0.1 to 5 jZcm 2 can be obtained even in the peeling process described later.
- the second laser beam having a wavelength of 500 to 1500 nm and an energy density of 0.1 to LjZcm 2 15
- the same effect can be obtained by irradiating only 1 to 5 pulses.
- the mask layer is preferably twice or more, and more preferably, so that the absorptance with respect to the second laser light 15 is larger than the absorptivity with respect to the second laser light 15 of the antireflection layer described later. Is 3 times or more, more preferably 5 times or more. Thus, it is possible to easily and more reliably peel off only the unnecessary mask layer in the peeling step described later.
- the absorptivity of the mask layer with respect to the first laser light 14 is 70% or more, more preferably 85% or more, because the laser can be efficiently cached.
- Such a mask 20 layer is formed by a commonly used method, for example, a method of applying the mask layer forming material to the surface of the transparent substrate 10 using a coater or the like, or a film-like mask layer forming material.
- a method of forming on the surface of the transparent substrate 10 using a laminator or the like is illustrated.
- the thickness of the mask layer 20 is preferably about 5 to 20 ⁇ m, more preferably about 10 to 20 ⁇ m. In the conventional wet method, the thickness of the mask layer 20 is usually about 25 to 50 / ⁇ ⁇ , but in the case of the present invention using laser light, the above thickness is suitable. Reason The reason is that it is suitable for manufacturing more fine electrodes more reliably and with higher precision, and because it can be processed with less laser energy, mass productivity can be greatly improved. is there.
- an excimer laser beam or a YAG laser beam is used as the first laser beam 14 to ablate.
- the mask layer 20 formed on the surface of the transparent substrate 10 in the mask layer forming step is removed by evaporation to form an opening.
- the opening has an overhang shape or a reverse taper shape.
- the first antireflection layer 30, the second antireflection layer 32, the electrode layer 40, and the like can be easily formed more precisely.
- the first laser beam 14 incident on the mask layer is generally used as the mask layer. Since the energy attenuates as it enters the inside of the opening 20, the cross-sectional shape of the opening is formed to be an inversely tapered shape.
- the inversely tapered shape is a shape in which the size of the opening of the mask layer 20 increases as it goes toward the transparent substrate 10.
- the first laser beam 14 can be applied to the mask layer 20 from the upper surface side to form an overhang-shaped opening.
- the overhang shape refers to a state in which, for example, when the opening is formed by forming two mask layers 20, the size of the opening in the upper layer is smaller than the size of the opening in the lower layer. That is, it is a shape in which the end of the upper layer opening protrudes beyond the end of the lower layer opening.
- 3 to 5 show the process of processing the opening of the mask layer 20 formed on the transparent substrate 10 into a reverse tapered shape or an overhang shape.
- a mask layer forming material to be used, a mask layer forming method, and The thickness of the mask layer is the same as that shown in the mask layer forming step.
- a liquid mask layer forming material is applied on the transparent substrate 10, or a film-like mask layer forming material is laminated to form a first mask layer 20a (FIG. 3 (a)).
- the mask layer 2 Oa side force is also irradiated with the first laser beam 14 through the photomask 12 (FIG. 3 (b)) to form an opening (FIG. 3 (c)).
- the cross-sectional shape of the opening portion becomes narrower toward the surface of the transparent substrate 10, and has a so-called forward taper shape.
- a film-like mask layer forming material is laminated on the upper surface of the first mask layer 20a to form a second mask layer 20b (FIG. 3 (d)).
- the first laser beam 14 is irradiated from the mask layer 20b side through the photomask 12 (FIG. 3 (e)) to form an opening (FIG. 3 (f)).
- the opening of the second mask layer 20b is formed so that the size of the opening is smaller than the size of the opening formed in the first mask layer 20a.
- the end of the second mask layer 20b in the opening protrudes beyond the end of the first mask layer 20a, resulting in an overhanging opening.
- the part can be formed.
- the first antireflection layer 30 is formed in the next antireflection layer forming step to be described later, the result is as shown in FIG. 3 (g).
- the method of processing the mask layer 20 into the overhang shape using the first laser beam 14 is different from the method of forming the two mask layers 20 in the above-mentioned manner by changing the focus of the first laser beam 14. It can also be performed by a method of irradiating twice. This process will be described in detail with reference to FIG. First, a liquid mask layer forming material is applied on the transparent substrate 10, or a film-like mask layer forming material is laminated to form the mask layer 20 (FIG. 4 (a)). Then, by irradiating the first laser beam 14 from the upper surface side of the mask layer 20 through the photomask 12 (FIG. 4 (b)), the mask layer 20 is processed into a forward tapered shape (FIG. 4 ( c)). Thereafter, the focal point of the first laser beam 14 is moved, and the first laser beam 14 is irradiated again through the photomask 12 (FIG. 4 (d)).
- the cross-sectional shape of the opening of the mask layer 20 becomes a shape processed into a reverse taper shape from the middle of the forward taper shape (FIG. 4 (e)).
- This is processed into a normal taper shape by the first laser beam irradiation, so the mask layer forming material that absorbs the energy of the first laser beam 14 is transparent at the second laser beam irradiation. This is because energy is applied to the mask layer forming material in the lateral direction near the top surface of the substrate 10 and near the focal point.
- the first antireflection layer 30 is formed in the next antireflection layer forming step, the result is as shown in FIG.
- a method for covering the mask layer 20 in a reverse taper shape will be described in detail with reference to FIG. 5.
- a liquid mask layer forming material is applied on the transparent substrate 10, or a film-like material is formed.
- a mask layer 20 is formed by laminating mask layer forming materials (FIG. 5 (a)).
- the lower surface side force of the transparent substrate 10 is also irradiated with the first laser light 14 through the photomask 12 (FIG. 5B).
- the first laser light 14 transmitted through the transparent substrate 10 covers the mask layer 20, and an opening having a reverse tapered shape in cross section can be formed in the mask layer 20 (FIG. 5).
- the first antireflection layer 30 is formed in the next antireflection layer forming step described later, the result is as shown in FIG.
- this method can form an inversely tapered opening with a single laser beam irradiation, and thus can form the inversely tapered opening most efficiently.
- an opening having a cross-sectional shape of an overhang or a reverse taper can be formed in the mask layer 20.
- the first laser beam 14 used has a wavelength power of 00 to 1500 nm and an energy density of 0.1 to 5 jZcm 2 , preferably 0.5 to 3 jZcm. 2 is a laser beam.
- the first laser light may be a pulse or CW (continuous light).
- laser light examples include YAG laser light (wavelength: 1064 nm), YAG laser light (wavelength: 532 nm), and the like.
- the mask layer 20 By irradiating the mask layer 20 made of the above-described material with the first laser beam 14 as described above, the mask layer 20 can be reliably left on the surface of the transparent substrate 10 at the opening only by irradiation for a very short time. Opening such as overhang shape or reverse taper shape can be formed
- ⁇ Antireflection layer forming step> In a preferred embodiment of the method for producing electrodes and / or black stripes for the plasma display substrate of the present invention, in the antireflection layer forming step, a first oxide made of chromium oxide having a predetermined film thickness is formed on the transparent substrate 10. An antireflection layer having a two-layer structural force of an antireflection layer 30 and a second antireflection layer 32 made of Cr is manufactured.
- the reflected light from each layer interferes and the reflectance decreases. And a clear image can be displayed.
- the material of the first antireflection layer 30 is preferably made of chromate and Z or titanate. 95% by mass of chromate and Z or titanate (total content of chromate and titanium oxide) with respect to the entire material forming the first antireflection layer 30 If it is contained above, it is preferable as the antireflection layer of the present invention.
- chromate means oxygen-deficient CrO (1.0 ⁇ X ⁇ 1.5), Cr 2 O, etc.
- Titanium oxide means oxygen-deficient TiO (1. 0 ⁇ X ⁇ 2. 0), TiO, etc.
- the titanate is oxygen deficient TiO (1. 0 ⁇ X ⁇ 2. 0), the reflection characteristics are good.
- the chromate oxide and Z or titanate oxide may further contain carbon, nitrogen and the like.
- the extinction coefficient and the refractive index of the film can be finely adjusted, so that it matches the optical characteristics of the second antireflection layer 32.
- the visible power is also preferred in terms of the laser wavelength range used in the present invention and the good antireflection characteristics.
- chromium oxide contains nitrogen
- the composition of this chromium oxynitride film is 0.3 ⁇ Y ⁇ 0, when expressed as Cr ON.
- the thickness of the first antireflection layer 30 is preferably 30 nm to 100 nm. If it is out of this range, it is difficult to reduce reflectivity by using interference of reflected light. It becomes difficult.
- the thickness may be appropriately adjusted within the range from the refractive index and extinction coefficient of the film.
- the first antireflection film 30 is substantially transparent and preferably has a refractive index of 1.9 to 2.8 at a wavelength of 550 nm of 1.9 to 2.4. It is more preferable. Outside this range, it becomes difficult to reduce the reflected light by causing the reflected light from the first antireflection layer 30 and the second antireflection layer 32 to interfere with each other.
- substantially transparent means that the extinction coefficient is not more than 1.5, more preferably not more than 0.7, so that sufficient light interference can be generated.
- the first antireflection film 30 may be a plurality of films. Specifically, a laminate in which chromium oxide and chromium nitride are sequentially laminated from the substrate is exemplified.
- the second antireflection layer 32 can also be Cr and / or T. If Cr and / or Ti is contained in an amount of 95% by mass or more with respect to the entire material forming the second antireflection layer 32, the function as the antireflection layer of the present invention is achieved. Also, it is preferable in that the second antireflection layer 32 is made of Cr and Z or Ti, so that the thin film layer as described later can be protected! /.
- Cr and Z or Ti may further contain carbon, nitrogen and the like.
- the extinction coefficient and the refractive index of the film can be finely adjusted, so that it matches the optical characteristics of the first antireflection layer 30. It is preferable in that the antireflection characteristic can be made good in the laser wavelength range used in the present invention.
- the second antireflection layer 32 of the present invention has a low light transmittance and is substantially opaque in the visible light region.
- the visible light transmittance is usually set to 0.0001 to 0.1%.
- the thickness is 10 to 200 nm, preferably 20 to 100 nm.
- the first antireflection layer 30 and the second antireflection layer 32 of the present invention can be formed by ordinary sputtering or vapor deposition.
- a chromium target is used and an inert atmosphere such as argon is used.
- sputtering may be performed.
- sputtering may be performed by mixing N, CH, or the like with argon.
- the chromic oxide layer of the layer 30 it is possible to use a chromic target, using a chromium target, and using an oxygen chromic target, which is the most effective method of sputtering in an atmosphere containing oxygen.
- a chromic target using a chromium target, and using an oxygen chromic target, which is the most effective method of sputtering in an atmosphere containing oxygen.
- oxygen chromic target which is the most effective method of sputtering in an atmosphere containing oxygen.
- the reaction time by sputtering, vapor deposition or the like is controlled. Can be adjusted.
- the opening is formed in the mask layer 20. Since the transparent substrate 10 in the opening portion formed in the step is exposed, the first antireflection layer 30 and the second antireflection layer 32 are formed on the surface (upper surface) of the transparent substrate 10 in this opening portion. It is. In other portions than the opening, the first antireflection layer 30 and the second antireflection layer 32 are formed on the upper surface of the mask layer 20.
- the pattern width of the pixel display area of the first antireflection layer 30 and the second antireflection layer 32 formed on the transparent substrate 10 is preferably determined in consideration of the balance between the desired contrast and luminance. For example, it is 30 m or less. If it is too wide, the light that also generates the power of the PDP display device is shielded, and sufficient brightness cannot be secured.
- the first antireflection coating exemplified in the preferred embodiment above is used.
- the layer 30 and the second antireflection layer 32 are not limited to those forming two layers. In addition to these two layers, a plurality of layers may be provided.
- the electrode layer 40 is formed on the upper surface side of the second antireflection layer 32 in the electrode layer forming step.
- the material of the electrode layer forming material for forming the electrode layer 40 functions as an electrode. If it is, it will not specifically limit. For example, copper, silver, aluminum, gold or the like can be used.
- copper is preferable.
- the reason is that it is inexpensive as a material with high conductivity.
- the method for forming the electrode layer 40 using the electrode layer forming material of such a material is the same as the method shown in the antireflection layer forming step.
- the electrode layer 40 can be formed by these methods.
- the thickness of the electrode layer 40 is usually about 1 to 4 m.
- the method for adjusting the thickness is the same as the method shown in the antireflection layer forming step.
- the electrode and the Z or black stripe may be covered with a dielectric.
- the resistance of the electrode of the present invention and the dielectric of the Z or black stripe to the dielectric is much lower than that of ITO, but the electrode is more eroded by the following two methods. It is harder and better.
- the first method includes a Cr′T layer forming step of forming a layer that also contains Cr and / or T after the electrode layer forming step. Further, the upper surface of the electrode layer 40 is further protected. In this method, a layer composed of Cr and Z or Ti is formed. As a result, the dielectric does not directly contact the electrode layer 40, so that the electrode layer 40 is not easily eroded.
- the method of forming the layer made of Cr and Z or Ti is the same as the method of forming the first antireflection layer and the second antireflection layer.
- the thickness of the layer made of Cr and Z or Ti may be 0.05 to 0. With this thickness, the electrode layer 40 can be prevented or suppressed from being eroded by the dielectric.
- the method for adjusting the thickness is the same as the method for forming the first antireflection layer and the second antireflection layer.
- the second method is a method in which the electrode layer 40 contains Cr and / or Ti. This is because Cr is highly resistant to dielectrics.
- the electrode layer 40 may be a layer that also has an alloying force of Cr and Z or Ti and Cu.
- the electrode layer 40 contains 5 to 15% by mass with respect to the entire material constituting electrode layer 40. It is preferable that the electrode layer 40 has sufficient resistance to the dielectric and the conductivity is maintained.
- the electrode layer containing Cr and Z or Ti In order to form the electrode layer containing Cr and Z or Ti, a method similar to the method of forming the antireflection layer may be applied using the electrode layer forming material containing Cr and Z or Ti. Good.
- the mask layer 20 in the peeling step, is irradiated with the second laser light 15 to thereby apply the mask layer 20 to the transparent substrate 10. Peel from.
- the mask layer 20 evaporates due to the combined use of abrasion and thermal energy. As a result, the mask layer 20 is peeled from the transparent substrate 10.
- excimer laser light, YAG laser light, or the like can be used as the type of the second laser light 15 in the same manner as the first laser light 14 described above.
- the intensity of the second laser beam 15 is set to a wavelength of 500 to 1500 nm and an energy density of 0.1 to 5 jZcm 2 , as with the first laser beam 14. If the intensity of the second laser beam 15 is within this range, the first antireflection layer 30, the second antireflection layer 32, the electrode layer 40, etc. remaining on the transparent substrate 10 are damaged as described above.
- the mask layer 20 can be peeled off from the transparent substrate 10 without fail.
- the types and intensities of the first laser beam 14 and the second laser beam 15 may be the same or different. In consideration of the cost of the apparatus and the like, the same is preferable.
- the transparent substrate 10 It is preferable to irradiate the second laser beam 15 on the lower surface side of the substrate because the mask layer 20 can be peeled off as much as possible by the transparent substrate 10 with less residue and less residue.
- a film with an adhesive is pasted on the electrode layer 40, and then the mask layer 20 and the transparent substrate. May be removed from 10.
- Adhesive strength reduction process In addition, in order to reduce or eliminate the adhesion between the mask layer 20 and the transparent substrate 10 immediately before the peeling process (hereinafter, these are collectively referred to simply as “decrease adhesion”), these adhesions are caused by light. There may be a process to reduce the adhesive strength (hereinafter referred to as “adhesive strength reduction process” ⁇ ⁇ ). After the first antireflection layer 30, the second antireflection layer 32, and the electrode layer 40 are formed on the mask layer 20, light is irradiated from the transparent substrate 10 side (lower surface side). Here, the light is preferably ultraviolet light. As a result, the mask layer forming material is decomposed and deteriorated.
- the adhesion between the mask layer 20 and the transparent substrate 10 decreases. Accordingly, in this case, as the mask layer forming material, a material containing a component that causes decomposition and deterioration due to light irradiation may be used. Further, when the types of mask layer forming materials are different, irradiation may be performed using light having a wavelength corresponding to each mask layer forming material.
- the mask layer 20 can be easily peeled off from the transparent substrate 10 and the residue after peeling can be reduced.
- a plurality of thin film layers can be formed.
- a thin film layer is further formed on the upper surface of the transparent substrate 10 before the mask layer forming step or after the peeling step, and a third thin film layer is formed on the thin film layer.
- direct patterning By using such direct patterning, a thin film layer can be easily formed.
- the thin film layer is formed after the peeling step, direct patterning of the thin film layer by irradiation with a third laser beam described later is formed on the transparent substrate 10 and the electrode layer 40.
- the thin film layer may be applied to a portion of the thin film layer that is directly formed on the transparent substrate 10.
- the thin film layer is formed before the mask layer forming step
- direct patterning of the thin film layer by irradiation with a third laser beam described later is performed by the first antireflection layer 30 and the second antireflection layer 32.
- formation of the electrode layer 40 that may be performed before forming the mask layer for forming the electrode layer 40 (that is, in a state where only the thin film layer is formed on the transparent substrate 10). It may be performed later (that is, after the first antireflection layer 30, the second antireflection layer 32, and the electrode layer 40 are formed on the thin film layer).
- the direct patterning of the thin film layer is performed after the formation of the first antireflection layer 30, the second antireflection layer 32, and the electrode layer 40.
- the mask layer for forming the antireflection layer 30, the second antireflection layer 32, and the electrode layer 40 need only be formed on the thin film layer on the transparent substrate 10 that has not been subjected to caloring. It is possible to form an efficient and highly accurate pattern.
- the third laser beam for direct patterning of the thin film layer is an excimer laser beam, a YAG laser beam, or the like, and the first laser beam and the second laser beam used for opening and peeling of the mask layer described above.
- (wavelength 500 to 1500 nm, the energy density lasers light 0. l ⁇ 5jZcm 2) high instrument wavelength force energy density than 00 ⁇ 1500Nm, preferably that energy density using a laser beam of 6 ⁇ 40jZcm 2 ! /
- the material that can be used for the thin film layer may be any material that can be directly removed by irradiation with the third laser beam for direct patterning of the thin film layer.
- Oxides such as SnO
- metals such as Cr and Ti
- the material of the thin film layer and the third laser beam to be used can be appropriately selected according to the combination thereof.
- Such a thin film layer can be formed by a method similar to the formation of the first antireflection layer 30, the second antireflection layer 32, and the electrode layer 40.
- the thickness of the thin film layer is usually about 0.
- the method of adjusting the thickness is the same as that of the first antireflection layer, the second antireflection layer, and the electrode layer 40.
- the present invention may add, for example, a step of appropriately changing the order of the steps in the preferred embodiment or forming another thin film.
- the present invention provides a first antireflection layer also having chromate and Z or titanate strength, a second antireflection layer made of Cr and Z or Ti, and an electrode layer made of Cu. And a plasma display substrate to which a Z or black stripe is attached, and can be produced by the method for producing an electrode and / or black stripe for the plasma display substrate described above.
- the first antireflection layer, the second antireflection layer, and the electrode layer are arranged in this order between the force layers stacked on the substrate.
- another layer may be formed.
- FIG. 6 shows an example of a transparent substrate 60 for a plasma display substrate with electrodes 62 and black stripes 61 formed by the method for manufacturing electrodes and Z or black stripes for the plasma display substrate of the present invention.
- Fig. 7 shows a cross-sectional view along line AA in Fig. 6.
- a first antireflection layer 63, a second antireflection layer 64, an electrode layer 66, and a protective layer 68 are formed in this order on the upper surface of the transparent substrate 60.
- an antireflection layer is formed on the bus electrode and display electrode, which is not only black stripes, so that reflection of external light is further suppressed, and PDP display using this A clear image can be formed on the apparatus.
- the visible light reflectance from the substrate side (transparent substrate 60 side) of these layers as a whole is preferably 50% or less, particularly preferably 40% or less, more preferably 10% or less. If the visible light reflectance is in this range, a clearer image can be formed on the PDP display device using the reflectance.
- the plasma display substrate electrode of the present invention has been conventionally used as a bus electrode, and the electrode layer is also used as a display electrode. Therefore, like the conventional plasma display substrate electrode, First, it is not necessary to form a display electrode made of a transparent electrode and then form a bus electrode on a part of the display electrode. Therefore, the electrode for the plasma display substrate can be more reliably manufactured in a shorter time and at a lower cost.
- the electrodes and the black stripe can be produced in the same process, and a very large cost reduction can be expected.
- the plasma display substrate electrode according to the present invention is provided. Similarly, a PDP using a substrate can be manufactured at a lower cost.
- a plasma display back substrate with address electrodes can be manufactured by the method for manufacturing an electrode for a plasma display substrate of the present invention.
- Sarako, PDP can also be manufactured using this plasma display back substrate.
- a film made of talyl resin containing 40% by mass of carbon black and having a mask layer forming material strength is used.
- Metal Cr purity: 99.99% or more
- metal Cr purity: 99.99% or more
- metal copper purity
- metal Cr purity: 99.99% or more
- metal Cr purity: 99.99% or more
- the mask film and the first antireflection layer, the second antireflection layer, the electrode layer, and the protective layer are formed by the step of forming electrodes and Z or black stripes for the plasma display substrate shown in FIGS. .
- the manufacturing method of the electrode and Z or black stripe for the plasma display substrate is as follows: (1) Mask film attaching process (FIG. 8 (a) '(b)) (2) Opening formation process by laser light irradiation (Fig. 8 (c)), (3) Antireflection layer formation process (Fig. 9 (d) '(e)) ⁇ (4) Electrode layer and protective layer formation process (Fig. 10 (f) '(g)) (5) A mask layer peeling step by laser light irradiation (Fig. 10 (h)) is provided.
- a mask film 72 having a thickness of 15 ⁇ m is uniformly attached on a glass substrate 70 (FIG. 8 (a)) with a film laminator 74 (FIG. 8 (b)).
- the glass substrate 70 is irradiated with YAG laser light having a wavelength of 1064 nm and an energy density of ljZcm 2 as the first laser light through the photomask 78 (FIG. 8 (c)).
- the cross-sectional shape of the opening of the mask film 72 becomes a reverse taper shape.
- the glass substrate 70 is sputter-deposited 80
- a CrO layer as the first antireflection layer 82 is formed on the glass substrate 70 and the mask film 72 by sputtering (FIG. 9 (d)).
- the thickness of the first antireflection layer 82 is 0.05.
- the first antireflection layer 82 is deposited on the mask film 72 and the glass substrate 70 completely separately. Further, using the same sputter deposition apparatus 80, the first antireflection layer 82, the Cr layer serving as the second antireflection layer 84, the Cu layer serving as the electrode layer 86, and the Cr layer serving as the protective layer 88 were sequentially formed. (Fig. 9 (e) to Fig. 10 (g)).
- the thickness of each layer is about 0.08 ⁇ m for the 2nd anti-fi84 force, about 3 ⁇ m for the layer 86 force S, and about 0.1 ⁇ m for the layer 88 force S.
- Each layer is completely separated on the mask film 72 and the glass substrate 70.
- a YAG having a wavelength of 1064 nm and an energy density of 0.25 J / cm 2 is used as the second laser beam. Laser light is applied to the side force mask film 72 of the glass substrate 70 to peel the mask film 72 from the glass substrate 70 (FIG. 10 (h)).
- an electrode and a Z or black stripe for a plasma display substrate similar to those shown in FIGS. 6 and 7 can be manufactured. Further, this display electrode has a resistance equal to or lower than that of ITO and has an excellent contrast. In addition, no erosion by dielectrics is observed.
- a plasma display substrate can be manufactured by forming electrodes and black stripes on a transparent substrate with the same material, at a low price, with low resistance, and with a material that is less susceptible to erosion by dielectrics, Furthermore, a plasma display device that can display a clear image using the plasma display substrate can be manufactured.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006537653A JPWO2006035565A1 (ja) | 2004-09-27 | 2005-08-29 | プラズマディスプレイ基板用、電極および/またはブラックストライプの製造方法 |
| CN2005800323952A CN101027744B (zh) | 2004-09-27 | 2005-08-29 | 等离子体显示器基板用电极和/或黑条的制造方法 |
| US11/691,689 US7772778B2 (en) | 2004-09-27 | 2007-03-27 | Method for forming electrodes and/or black stripes for plasma display substrate |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-279497 | 2004-09-27 | ||
| JP2004279497 | 2004-09-27 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/691,689 Continuation US7772778B2 (en) | 2004-09-27 | 2007-03-27 | Method for forming electrodes and/or black stripes for plasma display substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006035565A1 true WO2006035565A1 (ja) | 2006-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/015683 Ceased WO2006035565A1 (ja) | 2004-09-27 | 2005-08-29 | プラズマディスプレイ基板用、電極および/またはブラックストライプの製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7772778B2 (ja) |
| JP (1) | JPWO2006035565A1 (ja) |
| KR (1) | KR101026659B1 (ja) |
| CN (1) | CN101027744B (ja) |
| WO (1) | WO2006035565A1 (ja) |
Cited By (1)
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| WO2008016061A1 (en) * | 2006-08-02 | 2008-02-07 | Asahi Glass Co., Ltd. | Electronic circuit device and method for fabricating the same |
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| CN115799047B (zh) * | 2021-09-10 | 2025-12-09 | 隆基绿能科技股份有限公司 | 一种薄膜掩膜 |
| KR20230154370A (ko) * | 2022-04-29 | 2023-11-08 | 삼성디스플레이 주식회사 | 표시 장치의 제조 방법 및 그 방법으로 제조된 표시 장치 |
| CN115043375B (zh) * | 2022-06-28 | 2023-07-25 | 上海积塔半导体有限公司 | 金属微结构及半导体器件的制备方法 |
| CN118516640A (zh) * | 2023-03-20 | 2024-08-20 | 隆基绿能科技股份有限公司 | 一种薄膜掩膜及太阳能电池的沉积方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US7772778B2 (en) | 2010-08-10 |
| JPWO2006035565A1 (ja) | 2008-05-15 |
| CN101027744A (zh) | 2007-08-29 |
| KR101026659B1 (ko) | 2011-04-04 |
| CN101027744B (zh) | 2011-01-12 |
| US20070190886A1 (en) | 2007-08-16 |
| KR20070057807A (ko) | 2007-06-07 |
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