WO1998051833A1 - Materiau de type tole d'acier en alliage invar pour masque perfore, procede de production de ce materiau, masque perfore, et tube d'images couleur - Google Patents

Materiau de type tole d'acier en alliage invar pour masque perfore, procede de production de ce materiau, masque perfore, et tube d'images couleur Download PDF

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Publication number
WO1998051833A1
WO1998051833A1 PCT/JP1998/002051 JP9802051W WO9851833A1 WO 1998051833 A1 WO1998051833 A1 WO 1998051833A1 JP 9802051 W JP9802051 W JP 9802051W WO 9851833 A1 WO9851833 A1 WO 9851833A1
Authority
WO
WIPO (PCT)
Prior art keywords
shadow mask
invar alloy
alloy steel
steel sheet
picture tube
Prior art date
Application number
PCT/JP1998/002051
Other languages
English (en)
Japanese (ja)
Inventor
Tsuneyuki Ide
Hironao Okayama
Hiroaki Ikenaga
Susumu Shigemasa
Yasuo Tahara
Taizo Sato
Akira Ikeda
Original Assignee
Toyo Kohan Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Kohan Co., Ltd. filed Critical Toyo Kohan Co., Ltd.
Priority to KR10-1999-7010362A priority Critical patent/KR100519520B1/ko
Priority to US09/423,431 priority patent/US6306229B1/en
Priority to AU72348/98A priority patent/AU7234898A/en
Priority to DE19882379T priority patent/DE19882379T1/de
Publication of WO1998051833A1 publication Critical patent/WO1998051833A1/fr

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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
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling

Definitions

  • the present invention relates to an invar alloy steel sheet material used for a shadow mask of a color picture tube (hereinafter referred to as CRT), a method for producing the same, a shadow mask using the above-mentioned invar alloy steel sheet material, and a CRT incorporating the same. More specifically, the present invention relates to a steel plate for a shadow mask made of an Invar alloy having excellent etching properties when drilling dot holes (micro holes) of a shadow mask, a method of manufacturing the same, a shadow mask and a CRT incorporating the same.
  • a thin plate made of a quinvar alloy or aluminum killed steel is used as a material for the shadow mass used in the CRT.
  • the material for shadow masks made of Invar alloy is a series of invar alloy melted, forged, hot rolled, pickled and ground, scale removed, cold rolled and annealed. It is manufactured through the following process.
  • a flat mask can be obtained by perforating dot holes in the thin plate of Invar alloy obtained in this manner by using a photo-etching method. This flat mask is annealed, pressed into a desired shape, blackened, and then incorporated into a CRT.
  • the shadow mask serves as an anode for the electron beam emitted from the electron gun and as an aperture when the electron beam passing through the dot hole is applied to the fluorescent paint dot applied to the front panel.
  • the latter plays a role in directly controlling the sharpness, color bleeding, and uneven brightness of the image displayed on the CRT,
  • the through hole requires extremely high dimensional accuracy.
  • the dot hole is a small-diameter dot hole (hereinafter referred to as a small dot) on the cathode side of the thin mask plate, that is, the side facing the electron gun, and a large-diameter dot hole (hereinafter referred to as the panel) on the opposite side.
  • BrTh hole ⁇ a hole at the "meeting" portion between the small dot and the large dot.
  • the Br Th hole actually plays the role of the shadow mask as an electron beam aperture.
  • the thickness of the alloy steel sheet for shadow mask is in the range of 100 to 250 x m, and the pitch between the centers of the dot holes is about 250 / x m in the case of the high-definition shadow mask.
  • the diameter of the Br Th hole is about 120 ⁇ m, and the Br Th hole is required to have uniform diameter / roundness and uniform circularity.
  • the surface roughness of the etching surface is strictly required to be a dense and uniform surface in terms of the function as a diaphragm. There is a strong demand for improvements in these etching properties.
  • the invar alloy has a face-centered cubic crystal structure, and has exactly the same kind of crystal structure as austenitic stainless steel, which is well known as a stainless alloy in the field of steel materials. That is, in the case of the face-centered cubic material, etching is performed on the ⁇ 111 ⁇ plane and the ⁇ 100 ⁇ plane. It is a long-known technique to progress more uniformly on a surface with such a high atomic density.
  • the present invention provides an industrially inexpensive provision of an invar alloy steel plate as a material for a shadow mask having even better etching characteristics, a method of manufacturing the invar alloy steel plate, and a method of manufacturing the invar alloy steel plate.
  • An object of the present invention is to provide a shadow mask using the same and a color picture tube incorporating the shadow mask. Disclosure of the invention
  • the method for producing a steel member material for a shadow mask according to claim 2 is characterized in that, after hot working a slab of an alloy having Ni of 33 to 40% by weight and the balance of Fe, the reduction rate is 80%. It is characterized by performing the following primary cold rolling, followed by annealing at 550 ° C. or more, and then performing secondary cold rolling at a reduction of 50% or less.
  • the rolling reduction in the primary cold rolling is desirably 50 to 80% (Claim 3), and the temperature range in the annealing is 65 to 95 ° C. (Claim 4), and the rolling reduction in the secondary cold rolling is preferably 0.055 to 40% (claim 5).
  • a color picture tube according to a sixth aspect is characterized in that the color picture tube shadow mask is incorporated.
  • the Ni content in the Invar alloy is limited to the range of 33 to 40% by weight.
  • the coefficient of thermal expansion is significantly reduced, and even when incorporated into the CRT, image distortion and color unevenness do not occur due to temperature changes.
  • the Ni content is less than 33% by weight or exceeds 40% by weight, the coefficient of thermal expansion increases, and the above-mentioned problems such as distortion occur.
  • a technical problem in the production of Invar alloy steel sheets used for CRT shadow masks is the improvement in etching characteristics of Invar alloys.
  • the production conditions are severe because priority is given to improving the properties of invar materials, and the production process is only becoming more complicated.
  • the ⁇ 10 ⁇ 50 ⁇ plane integration degree in the range of 60 to 80%.
  • the degree of integration exceeds 80%, the effect of improving the etching characteristics is small, but rather, the rolling reduction increases in the cold rolling process, which unnecessarily increases the number of passes and increases the rolling time. Come delay.
  • the cost will increase due to the wear of the rolling rolls due to the work hardening of the Invar alloy steel sheet. Also, etching equipment for shadow masks
  • the steel sheet is finished through primary cold working, annealing, and secondary cold working.
  • the primary cold working usually uses a cold rolling method using a rolling mill.
  • the reduction is not only an important factor in the rolling structure of Invar alloys, but also important in the cost required for cold rolling. According to the present invention, as a result of various tests, the rolling reduction in the first cold rolling jo is set to 80% or less. More preferably, it is limited to the range of 50 to 80%.
  • the rolling reduction is less than 50%, the degree of integration of the ⁇ 100 ⁇ plane cannot be satisfied, and it falls below the lower limit of the degree of integration of ⁇ 100 ⁇ , 60%. Conversely, even if the rolling reduction exceeds 80%, the degree of increase in the ⁇ 100 ⁇ plane integration is small, and not only does the load of the rolling process increase unnecessarily, but also the wear of the roll increases rapidly.
  • the upper limit of rolling reduction is limited to 80% at f5.
  • the annealing in the next step is aimed at recovering the rolled structure and recrystallization, and its temperature range is 550 ° C or higher. The degree of integration of the ⁇ 100 ⁇ plane is increased by this annealing treatment.
  • the temperature is out of this temperature range and lower than 550 ° C., desired recrystallization does not proceed, and the ⁇ 100 ⁇ plane integration degree is significantly reduced.
  • the temperature exceeds 950 ° C, recrystallization progresses remarkably and the crystal grains become coarse, resulting in a decrease in etching characteristics.
  • a more preferable temperature range is 650 to 950 ° C.
  • the secondary cold working aims to increase the hardness and strength by work hardening, and imparts a predetermined hardness to the Invar alloy steel sheet while maintaining the high degree of ⁇ 100 ⁇ plane integration obtained by annealing. . Therefore, the rolling reduction range of the secondary cold processing is 50% or less. If the rolling reduction exceeds 50%, the high degree of integration of the ⁇ 100 ⁇ plane due to annealing will disappear, and the annealing effect will be lost.
  • the draft in secondary cold working should be 50% or less. More preferably, it is set to 0.05 to 40%. If it is less than 0.05%, there is no difference in hardness with the annealed material, and the effect of secondary cold working It is not allowed. As a result, the hardness and the strength of the Invar alloy steel plate are insufficient, so that a process trouble due to bending of the plate or the like easily occurs at the time of the passing operation in the etching process.
  • the hardness required for the Invar alloy is Vitzkaas hardness Hv 130 or more, and the hardness of the Invar alloy steel sheet of the present invention is in the range of Hv 130 to 250.
  • the thus obtained invar alloy steel sheet for a shadow mask was quantitatively evaluated for the ⁇ 100 ⁇ plane integration degree by an X-ray diffraction method. After measuring the diffraction intensities of the ⁇ 1 1 1 ⁇ , ⁇ 100 ⁇ , ⁇ 1 10 ⁇ and ⁇ 31 1 ⁇ planes,
  • ⁇ 100 ⁇ surface integration (%) 100 X ⁇ 100 ⁇ no [ ⁇ 1 1 1 ⁇ + ⁇ 100 ⁇
  • the ⁇ 100 ⁇ plane integration was calculated by the calculation method represented by the above equation (1).
  • ⁇ 111 ⁇ , ⁇ 100 ⁇ , ⁇ 110 ⁇ and ⁇ 311 ⁇ represent the diffraction intensity of each plane.
  • the etch factor was used as a quantitative evaluation method of the etching characteristics.
  • One method of measuring the etch factor is to etch one side of the steel sheet and determine the ratio of the etch depth to the side etch.
  • Etch factor 1 (etch depth) / (side etch) ⁇ ⁇ ⁇ (2)
  • the etch depth the thickness direction by liquid spray
  • the side etch etch length in the plate surface direction
  • the etch factor is high.
  • a material having poor etching characteristics has a large side etch and a small etch factor.
  • the mechanical properties of the materials were compared by measuring the hardness of the materials. The hardness was measured using a Vickers hardness tester with a weight of 100 g.
  • a hot coil was prepared through melting, forging, forging, homogenizing heat treatment, hot rolling, and pickling steps of an Invar alloy steel sheet having the chemical composition shown in Sample No. A in Table 1.
  • Table 2 shows the production conditions for primary cold rolling, annealing and secondary cold rolling.
  • Table 3 shows the characteristics of the materials obtained. Is shown. The hardness is represented by Vickers hardness (Hv—100), and a value of 130 or more is regarded as “OK”. In an etching line, a steel sheet is usually passed in a strip shape, so that the steel sheet cannot be normally passed on the line unless the Weiss force hardness is 130 or more.
  • the degree of integration means the degree of ⁇ 100 ⁇ plane integration, and 50 to 80% is regarded as acceptable.
  • the ⁇ 100 ⁇ plane integration is determined by the X-ray diffraction method described above. An etch factor of 2.6 or more is considered acceptable.
  • ⁇ means “possible” and X means “impossible”.
  • the samples No. 7 to 10 of the examples of the present invention satisfy the criteria for the material properties, while the samples No. 7 to 10 of the comparative examples have the hardness, the degree of integration or the etch factor. It can be seen that one or more do not satisfy the criteria.
  • the invar alloy steel sheet material for a shadow mask of the present invention comprises a primary cold-rolled steel having a reduction ratio of 80% or less after hot-working a slab of an alloy having a Ni content of 33 to 40% by weight and a balance of Fe. Rolling, then annealing at 550 or more, and further performing secondary cold rolling with a reduction of 50% or less, it is possible to manufacture at low cost, and it has good etching characteristics. I have. A color picture tube incorporating a shadow mask using this shadow mask material has little color bleeding and uneven brightness, and is excellent in the sharpness of the projected image.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

Cette invention concerne une tôle d'acier en alliage Invar qui est destinée à un masque perforé et possède des caractéristiques de gravure améliorées. Cette invention concerne également un procédé économique de fabrication de cette tôle, un masque perforé obtenu à partir de cette tôle d'acier en alliage Invar, ainsi qu'un tube d'images couleur comprenant ce masque perforé. Le procédé de production consiste à travailler à chaud une brame d'un alliage comprenant de 33 à 40 % en poids de Ni, le reste se composant de Fe. On effectue un premier laminage à froid selon un taux de réduction au laminage ne dépassant pas 80 %, après quoi la tôle est recuite à une température au moins égale à 550 °C. On effectue ensuite un second laminage à froid selon un taux de réduction au laminage ne dépassant 50 %, ceci de manière à ce que l'intégration plane du plan {100} de la surface laminée varie de 60 à 80 %.
PCT/JP1998/002051 1997-05-09 1998-05-08 Materiau de type tole d'acier en alliage invar pour masque perfore, procede de production de ce materiau, masque perfore, et tube d'images couleur WO1998051833A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR10-1999-7010362A KR100519520B1 (ko) 1997-05-09 1998-05-08 섀도우마스크용 인바합금강판소재와 그 제조방법,섀도우마스크 및 칼라수상관
US09/423,431 US6306229B1 (en) 1997-05-09 1998-05-08 Method for production of invar alloy steel sheet material for shadow mask
AU72348/98A AU7234898A (en) 1997-05-09 1998-05-08 Invar alloy steel sheet material for shadow mask, method of production thereof, shadow mask, and color picture tube
DE19882379T DE19882379T1 (de) 1997-05-09 1998-05-08 Invarlegierungsstahlblech für Lochmaske, Verfahren zu seiner Herstellung, Lochmaske und Farbbildröhre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13447397 1997-05-09
JP9/134473 1997-05-09

Publications (1)

Publication Number Publication Date
WO1998051833A1 true WO1998051833A1 (fr) 1998-11-19

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PCT/JP1998/002051 WO1998051833A1 (fr) 1997-05-09 1998-05-08 Materiau de type tole d'acier en alliage invar pour masque perfore, procede de production de ce materiau, masque perfore, et tube d'images couleur

Country Status (6)

Country Link
KR (1) KR100519520B1 (fr)
CN (2) CN1083495C (fr)
AU (1) AU7234898A (fr)
DE (1) DE19882379T1 (fr)
MY (1) MY123398A (fr)
WO (1) WO1998051833A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100500490B1 (ko) * 2001-11-20 2005-07-12 닛꼬 긴조꾸 가꼬 가부시키가이샤 섀도우마스크용 철-니켈계 및 철-니켈-코발트계 합금 스트립
CN109309175A (zh) * 2017-07-27 2019-02-05 三星显示有限公司 掩模框架组件及显示装置的制造方法
US10570498B2 (en) 2015-02-10 2020-02-25 Dai Nippon Printing Co., Ltd. Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
US10600963B2 (en) 2014-05-13 2020-03-24 Dai Nippon Printing Co., Ltd. Metal plate, method of manufacturing metal plate, and method of manufacturing mask by using metal plate

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JP4437036B2 (ja) * 2003-12-26 2010-03-24 パナソニック株式会社 蓄電セル用ケース材料
CN100451156C (zh) * 2007-04-27 2009-01-14 上海工程技术大学 稀土因瓦合金及其生产工艺
ES2522582T3 (es) * 2007-08-31 2014-11-17 Aperam Alloys Imphy Sustrato metálico texturizado cristalográficamente, dispositivo texturizado cristalográficamente, célula y módulo fotovoltaico que comprenden un dispositivo de este tipo, y procedimiento de depósito de capas finas
CN102978361B (zh) * 2012-11-29 2014-01-29 深圳市欣天科技有限公司 一种Invar合金的热处理工艺
JP5455099B1 (ja) * 2013-09-13 2014-03-26 大日本印刷株式会社 金属板、金属板の製造方法、および金属板を用いてマスクを製造する方法
JP5516816B1 (ja) 2013-10-15 2014-06-11 大日本印刷株式会社 金属板、金属板の製造方法、および金属板を用いて蒸着マスクを製造する方法
CN104775077B (zh) * 2015-03-23 2016-08-24 河北钢铁股份有限公司 超细晶因瓦合金薄带及其制备方法
CN107119234B (zh) * 2017-05-11 2019-01-18 东北大学 一种因瓦合金带材的细晶强化方法
CN111842527B (zh) * 2020-06-24 2022-12-27 江苏圣珀新材料科技有限公司 一种针对lng液化注船用板4j36板材的冷轧工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452022A (en) * 1987-08-19 1989-02-28 Nippon Mining Co Production of shadow mask material
JPH06158229A (ja) * 1992-09-24 1994-06-07 Nkk Corp プレス成形性に優れたシャドウマスク用Ｆｅ−Ｎｉ系合金薄板およびＦｅ−Ｎｉ−Ｃｏ系合金薄板

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452022A (en) * 1987-08-19 1989-02-28 Nippon Mining Co Production of shadow mask material
JPH06158229A (ja) * 1992-09-24 1994-06-07 Nkk Corp プレス成形性に優れたシャドウマスク用Ｆｅ−Ｎｉ系合金薄板およびＦｅ−Ｎｉ−Ｃｏ系合金薄板

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100500490B1 (ko) * 2001-11-20 2005-07-12 닛꼬 긴조꾸 가꼬 가부시키가이샤 섀도우마스크용 철-니켈계 및 철-니켈-코발트계 합금 스트립
US10600963B2 (en) 2014-05-13 2020-03-24 Dai Nippon Printing Co., Ltd. Metal plate, method of manufacturing metal plate, and method of manufacturing mask by using metal plate
US11217750B2 (en) 2014-05-13 2022-01-04 Dai Nippon Printing Co., Ltd. Metal plate, method of manufacturing metal plate, and method of manufacturing mask by using metal plate
US10570498B2 (en) 2015-02-10 2020-02-25 Dai Nippon Printing Co., Ltd. Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
US10612124B2 (en) 2015-02-10 2020-04-07 Dai Nippon Printing Co., Ltd. Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
CN109309175A (zh) * 2017-07-27 2019-02-05 三星显示有限公司 掩模框架组件及显示装置的制造方法
CN109309175B (zh) * 2017-07-27 2023-05-30 三星显示有限公司 掩模框架组件及显示装置的制造方法

Also Published As

Publication number Publication date
DE19882379T1 (de) 2000-05-25
MY123398A (en) 2006-05-31
CN1376807A (zh) 2002-10-30
KR20010012409A (ko) 2001-02-15
CN1083495C (zh) 2002-04-24
KR100519520B1 (ko) 2005-10-05
CN1132956C (zh) 2003-12-31
AU7234898A (en) 1998-12-08
CN1255168A (zh) 2000-05-31

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