WO2005050692A1 - メタルバック付き蛍光面の形成方法 - Google Patents
メタルバック付き蛍光面の形成方法 Download PDFInfo
- Publication number
- WO2005050692A1 WO2005050692A1 PCT/JP2004/017149 JP2004017149W WO2005050692A1 WO 2005050692 A1 WO2005050692 A1 WO 2005050692A1 JP 2004017149 W JP2004017149 W JP 2004017149W WO 2005050692 A1 WO2005050692 A1 WO 2005050692A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- film
- forming
- layer
- metal
- Prior art date
Links
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
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
-
- 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
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/28—Luminescent screens with protective, conductive or reflective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
Definitions
- the present invention relates to a method for forming a phosphor screen with a metal back, and more particularly, to a method for forming a phosphor screen with a metal back in a flat panel image display device such as a field emission display (FED). About the method.
- a flat panel image display device such as a field emission display (FED).
- the fluorescent surface of an image display device such as a cathode ray tube (CRT) or FED has been formed on the inner surface of the phosphor layer (the surface opposite to the face plate) by a metal such as aluminum (A1).
- a metal-back structure in which a film is formed is widely used.
- the metal back method reflects the emitted light from the phosphor layer excited by the electrons from the electron source to more efficiently transmit the luminous energy to the front surface of the face plate. This is for the purpose of imparting properties and serving as an electrode.
- a thin film such as nitrocellulose, which has a strong force is formed on a phosphor layer by a spin method or the like, and A1 is vacuum-deposited on the thin film, followed by baking (baking (Lacquer method) to remove organic substances.
- the thickness of the metal film In order to form a metal back layer that suppresses light transmittance and reflects light efficiently, the thickness of the metal film must be increased. However, when the thickness is increased, dead voltage ( There is a disadvantage that the lower limit of the electron beam acceleration voltage required for light emission) is increased. Further, there is a problem that the types of applicable metals and the width of the film thickness are limited.
- Patent Document 1 JP-A-63-102139 (pages 2 and 3-4)
- the present invention has been made to solve these problems, and has good adhesion between the phosphor layer and the metal back layer, excellent withstand voltage characteristics, and low light transmittance of the metal back layer. It is an object of the present invention to provide a method for forming a phosphor screen with a metal back having good performance with good yield.
- a step of forming a phosphor layer on the inner surface of the face plate and a step of forming at least a release agent layer, a smooth resin film, and an adhesive layer on the base film The transferred film is disposed on the phosphor layer such that the resin film is in contact with the adhesive layer, and is pressed and adhered while being heated by a transfer roller, and then the base film is peeled off.
- the step of transferring the resin film, the step of forming a metal film on the resin film transferred on the phosphor layer, and the step of heating the face plate on which the metal film is formed Characterized by having
- a metal film is formed on the smooth resin film, and a heat treatment is further applied.
- the adhesion between the phosphor layer and the metal back layer is increased, and the withstand voltage characteristics, particularly the limit holding voltage, are improved.
- a metal back layer free from defects such as cracks and pinholes can be formed with a high yield, and the breakdown voltage can be improved. It is possible to form a metal-backed fluorescent screen of an image display device having excellent characteristics.
- FIG. 1 is a cross-sectional view showing a structure of a transfer film used in an embodiment of the present invention.
- FIG. 2 is a view schematically showing a step of transferring a smooth resin film in the embodiment of the present invention. is there.
- FIG. 3 is a cross-sectional view of an FED provided with a phosphor screen with a metal back prepared according to an embodiment of the present invention.
- a light-absorbing layer made of a dot-like or stripe-like black pigment is formed on the inner surface of the face plate by, for example, a photolithography method, and then ZnS is formed thereon.
- Slurry containing phosphors of each color such as YO, YOS, etc.
- the phosphor layer patterns of the three colors red (R), green (G), and blue (B) are arranged so as to be adjacent to each other between the patterns of the light absorption layer to form a phosphor screen.
- the formation of the phosphor layer of each color can also be performed by a spray method or a printing method.
- a resin film having smoothness is formed on the phosphor screen by a transfer method using a transfer film described below.
- FIG. 1 shows the structure of the transfer film.
- a transfer film 1 has a release agent layer 3, a smooth resin film 4, and an adhesive layer 5 sequentially laminated on a base film 2 made of a resin such as polyester resin. It has a structure.
- the film thickness of the base film 2 is desirably 5 to 50 m in order to effectively perform heating and pressing by a roller (transfer roller) in a transfer step described later.
- the release agent include cellulose acetate, wax, fatty acid, fatty acid amide, fatty acid ester, rosin, acrylic resin, silicone, fluorine resin, and the like.
- the base film 2 and the smooth resin film are used. It is appropriately selected and used depending on the releasability between 4 and the like.
- the smooth resin film 4 formed on the release agent layer 3 is preferably made of a thermosetting resin, a thermoplastic resin, a photocurable resin, or the like, and is more flexible. It is desirable to contain an agent.
- softening agents include phosphoric acid esters, aliphatic monobasic acid esters, aliphatic dibasic acid esters, dihydric alcohol esters, oxyacid esters, butyl oleate, dibutyl adipate, paraffin chloride, toluene sulfone ethyl amide, and toluene.
- Sulfoneme examples thereof include tylamide, an aminobenzenesulfonamide compound, methyl abietic acid, dino-lunaphthalene, tributyl acetylquenate, an aminotoluenesulfonamide compound, and N-butylbenzenesulfonamide.
- the content ratio of the softener is desirably set to 110 to 30% by weight based on the whole material constituting the resin film. When the content of the softener exceeds 30% by weight, the transferability is poor, which is not preferable.
- a vinyl acetate resin an ethylene-vinyl acetate copolymer, a styrene-acrylic acid resin, an ethylene-butyl acetate terpolymer resin, or the like is used.
- the transfer film 1 having the above-described configuration is arranged so that the adhesive layer 5 is in contact with the surface of the phosphor screen 6. Then, the base film 2 is peeled off after the smoothing resin film 4 is adhered by pressing the transfer roller 7 while heating with heat.
- reference numeral 8 denotes a face plate (glass substrate)
- 9 denotes a light absorbing layer
- 10 denotes a phosphor layer.
- the transfer roller 7 for example, a rubber roller having a coating layer made of a natural rubber, a silicone rubber, or the like on a metal core material is used. Then, the transfer roller 7 is heated so that the temperature of the surface of the rubber layer, which is the pressing portion, becomes 70 to 240 ° C., and the two base films of the transfer film 1 are pressed at a pressure of 1 Okgf Zcm 2 . It is preferable to move at a speed of 120 mZ while pressing with pressure.
- the pressing speed of the transfer port 7 means a relative moving speed between the transfer roller 7 and the pressed portion.
- the transferred resin film can be pressed while being heated by a press roller.
- the resin film can be brought into close contact with the phosphor screen surface, and the smoothness of the resin film surface can be further improved.
- the press roller for example, a rubber roller having a coating layer made of natural rubber, silicone rubber, or the like on a metal core material is used similarly to the transfer roller. Then, the press roller is heated so that the temperature of the surface of the rubber layer, which is the pressing portion, becomes 70 to 250 ° C., while pressing the smooth resin film 4 with a pressing force of 11 lOkgfZcm 2. It is preferable to move at a speed of 20mZ.
- the metal film preferably has a thickness of 40 nm to 150 nm for the metal back effect.
- any method can be used as long as it is a general dry metal thin film forming method such as a vacuum evaporation method and a sputtering method.
- the entire face plate is heated to a temperature of about 450 ° C. and baked (baked) to decompose and remove organic components, thereby forming a metal back layer.
- a smooth and flat metal back layer without irregularities, cracks, and wrinkles is formed, and the adhesion between the phosphor layer and the metal back layer is excellent.
- the resulting phosphor screen with metal back is obtained.
- reference numeral 14 denotes a phosphor screen including a light absorbing layer and a phosphor layer
- 15 denotes a metal back layer.
- Reference numeral 16 denotes a support frame (side wall).
- the gap between the face plate 11 and the rear plate 13 is extremely narrow, discharge (insulation breakdown) is likely to occur between them.
- a smooth and flat metal back without irregularities, cracks, wrinkles, etc. Since it has the layer 15 and the adhesion between the metal back layer 15 and the lower phosphor screen 14 is high, discharge is suppressed and the withstand voltage characteristics are greatly improved.
- the metal back layer 15 since the metal back layer 15 has no cracks or pinholes and has a low light transmittance and a high reflectivity, a display with high luminance and excellent reliability can be realized.
- a stripe-shaped light absorption layer that also has black pigment power is formed on the inner surface of the face plate by photolithography, and then a slurry containing phosphors of each color, such as ZnS, YO, and YS, is added.
- the coating was dried and patterned using a photolithography method. Then, phosphor layers of three colors of red (R), green (G), and blue (B) are formed in stripes between the light-shielding portions of the light-absorbing layer so that the phosphor layers are adjacent to each other. Then, a phosphor screen was prepared.
- a release agent layer having a thickness of 0.5 m is formed on a base film made of polyester resin having a thickness of 20 ⁇ m, and 25 parts by weight of methyl isobutyl ketone (hereinafter, simply referred to as “parts”) are formed thereon.
- a resin composition comprising 0.5 part of acid and 0.5 part of p-toluenesulfonic acid was applied by a gravure coater and dried to form a smooth resin film having a thickness of 0.3 / zm.
- a resin composition comprising 90 parts of toluene and 10 parts of butyl acetate was applied on the smooth resin film by a gravure coater and dried to form an adhesive layer having a thickness of 10 / zm. Formed and completed the transfer film.
- this transfer film was placed on a phosphor screen so that the adhesive layer was in contact with the phosphor layer, and then had a rubber coating layer with a hardness of 90 ° and was heated to a surface temperature of 200 ° C.
- the transfer roller was moved at a speed of 5.4 mZ while pressing with a pressure of 500 kgfZcm 2 by the rubber roller (transfer roller) thus pressed to press the transfer film, and then the base film was peeled off.
- the smooth resin film was transferred onto the phosphor screen of the face plate.
- the transferred smooth resin film is further pressed by a rubber roller (press roller) having a hardness of 80 degrees and a surface temperature of 180 ° C. at a speed of 1. OmZ and a pressure of 800 kgfZcm 2 , and is smoothed.
- the conductive resin film was brought into close contact with the phosphor screen.
- an A1 film having a thickness of 50 nm is formed on the smooth resin film by a vacuum evaporation method, and the face plate on which the A1 film is formed is heated and baked at 450 ° C. Organics were decomposed and removed. In this way, a metal back layer was formed on the phosphor screen without defects such as cracks and pinholes.
- a metal back layer was formed by a conventional transfer method using a transfer film having a metal deposition film. That is, a transfer film in which a release agent layer, an A1 vapor-deposited film, and an adhesive layer were sequentially formed on a polyester resin base film was used, and this transfer film was disposed on a phosphor screen. In the same manner as described above, the A1 vapor-deposited film was transferred by heating and pressing with a transfer roller. Thereafter, a metal back layer was formed through a pressing process using a press roller and a heating / baking process.
- FEDs were manufactured by a conventional method.
- an electron source having a large number of surface conduction electron-emitting devices formed in a matrix on a substrate was fixed to a glass substrate to produce a rear plate.
- the rear plate and the face plate are connected to a support frame and They were opposed to each other via a spacer and sealed with frit glass. After that, necessary processes such as sealing and exhaust were performed to complete the 10-inch color FED.
- the FED having a phosphor screen with a metal back obtained in the comparative example was a force that caused a three-time discharge phenomenon in 3000 hours.
- the FED having a phosphor screen with a metal back obtained in the example was 3000 hours. It was a force that never caused a discharge phenomenon.
- the brightness was also improved by 5% compared to the FED of the comparative example.
- the present invention it is possible to form a smooth metal back layer having high adhesion to a lower phosphor layer, and to obtain a metal-backed phosphor screen having a high limit holding voltage. it can.
- the luminous brightness is also improved. Therefore, by providing such a phosphor screen with a metal back, it is possible to realize an image display device having excellent withstand voltage characteristics and high luminance.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Laminated Bodies (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04818944A EP1691390A1 (en) | 2003-11-21 | 2004-11-18 | Method for forming phosphor screen with metal back |
US10/580,158 US20070080622A1 (en) | 2003-11-21 | 2004-11-18 | Method for forming phosphor screen with metal back |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-392493 | 2003-11-21 | ||
JP2003392493A JP4015102B2 (ja) | 2003-11-21 | 2003-11-21 | メタルバック付き蛍光面の形成方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005050692A1 true WO2005050692A1 (ja) | 2005-06-02 |
Family
ID=34616452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/017149 WO2005050692A1 (ja) | 2003-11-21 | 2004-11-18 | メタルバック付き蛍光面の形成方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070080622A1 (ja) |
EP (1) | EP1691390A1 (ja) |
JP (1) | JP4015102B2 (ja) |
KR (1) | KR20060097762A (ja) |
CN (1) | CN1883026A (ja) |
TW (1) | TW200522115A (ja) |
WO (1) | WO2005050692A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080277322A1 (en) * | 2007-05-11 | 2008-11-13 | M-I L.L.C. | Noise abating perforated plate |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6477832A (en) * | 1987-06-25 | 1989-03-23 | Nissha Printing | Fluorescent film forming method for cathode-ray tube |
JPH09288969A (ja) * | 1996-04-23 | 1997-11-04 | Hitachi Ltd | カラー陰極線管の製造方法 |
JP2001126613A (ja) * | 1999-10-22 | 2001-05-11 | Canon Inc | スクリーン電極の製造方法及び画像形成装置 |
JP2001291469A (ja) * | 2000-02-03 | 2001-10-19 | Toshiba Corp | 転写フィルムとメタルバック層形成方法および画像表示装置 |
JP2003317614A (ja) * | 2002-04-19 | 2003-11-07 | Canon Inc | 蛍光面基板の製造方法および蛍光面基板 |
JP2003346647A (ja) * | 2002-05-22 | 2003-12-05 | Sony Corp | 蛍光体パネルの製造方法および蛍光体パネル形成用の中間膜シート |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3808166B2 (ja) * | 1997-02-12 | 2006-08-09 | 富士写真フイルム株式会社 | 放射線像変換パネルの製造方法 |
JP2003031150A (ja) * | 2001-07-13 | 2003-01-31 | Toshiba Corp | メタルバック付き蛍光面、メタルバック形成用転写フィルムおよび画像表示装置 |
JP2004152538A (ja) * | 2002-10-29 | 2004-05-27 | Toshiba Corp | メタルバック付き蛍光面とその形成方法および画像表示装置 |
-
2003
- 2003-11-21 JP JP2003392493A patent/JP4015102B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-18 US US10/580,158 patent/US20070080622A1/en not_active Abandoned
- 2004-11-18 WO PCT/JP2004/017149 patent/WO2005050692A1/ja not_active Application Discontinuation
- 2004-11-18 KR KR1020067012194A patent/KR20060097762A/ko active IP Right Grant
- 2004-11-18 EP EP04818944A patent/EP1691390A1/en not_active Withdrawn
- 2004-11-18 CN CNA2004800341956A patent/CN1883026A/zh active Pending
- 2004-11-19 TW TW093135793A patent/TW200522115A/zh unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6477832A (en) * | 1987-06-25 | 1989-03-23 | Nissha Printing | Fluorescent film forming method for cathode-ray tube |
JPH09288969A (ja) * | 1996-04-23 | 1997-11-04 | Hitachi Ltd | カラー陰極線管の製造方法 |
JP2001126613A (ja) * | 1999-10-22 | 2001-05-11 | Canon Inc | スクリーン電極の製造方法及び画像形成装置 |
JP2001291469A (ja) * | 2000-02-03 | 2001-10-19 | Toshiba Corp | 転写フィルムとメタルバック層形成方法および画像表示装置 |
JP2003317614A (ja) * | 2002-04-19 | 2003-11-07 | Canon Inc | 蛍光面基板の製造方法および蛍光面基板 |
JP2003346647A (ja) * | 2002-05-22 | 2003-12-05 | Sony Corp | 蛍光体パネルの製造方法および蛍光体パネル形成用の中間膜シート |
Also Published As
Publication number | Publication date |
---|---|
TW200522115A (en) | 2005-07-01 |
EP1691390A1 (en) | 2006-08-16 |
JP2005158349A (ja) | 2005-06-16 |
JP4015102B2 (ja) | 2007-11-28 |
US20070080622A1 (en) | 2007-04-12 |
CN1883026A (zh) | 2006-12-20 |
KR20060097762A (ko) | 2006-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6450850B1 (en) | Method of manufacturing display panel and display device | |
WO2001057905A1 (fr) | Film de transfert, procede de formation d'une couche de fond metallique, et affichage des images | |
KR100510225B1 (ko) | 메탈백이 붙여진 형광체층과 그 형성 방법 및 화상 표시장치 | |
TW565872B (en) | Method of forming phosphor screen | |
JP4068070B2 (ja) | メタルバック層の形成装置 | |
JPH11306993A (ja) | プラズマディスプレイパネル | |
WO2005050692A1 (ja) | メタルバック付き蛍光面の形成方法 | |
JP2001291469A (ja) | 転写フィルムとメタルバック層形成方法および画像表示装置 | |
KR100761396B1 (ko) | 메탈백이 구비된 형광면의 형성 방법 | |
US20060238109A1 (en) | Phosphor screen substrate, image display device using the same, and manufacturing methods thereof | |
JP2008226745A (ja) | メタルバック付き蛍光面とその製造方法および画像表示装置 | |
JP2002304945A (ja) | メタルバック付き蛍光面の形成方法および画像表示装置 | |
JP4072560B2 (ja) | 蛍光面基板及びその製造方法 | |
JP2003031113A (ja) | メタルバック付き蛍光面と画像表示装置およびメタルバック付き蛍光面の形成方法 | |
JP2004247200A (ja) | メタルバック層の形成方法 | |
JP3875166B2 (ja) | メタルバック付き蛍光面とその形成方法および画像表示装置 | |
JP2003229075A (ja) | メタルバック付き蛍光面とその形成方法および画像表示装置 | |
JP2005085503A (ja) | メタルバック付き蛍光面および画像表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480034195.6 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004818944 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067012194 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004818944 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067012194 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007080622 Country of ref document: US Ref document number: 10580158 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10580158 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2004818944 Country of ref document: EP |