EP0865066B1 - Method of manufacturing screen of color picture tube - Google Patents
Method of manufacturing screen of color picture tube Download PDFInfo
- Publication number
- EP0865066B1 EP0865066B1 EP19980104308 EP98104308A EP0865066B1 EP 0865066 B1 EP0865066 B1 EP 0865066B1 EP 19980104308 EP19980104308 EP 19980104308 EP 98104308 A EP98104308 A EP 98104308A EP 0865066 B1 EP0865066 B1 EP 0865066B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pigment
- layer
- green
- blue
- red
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/327—Black matrix materials
-
- 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
- H01J29/185—Luminescent screens measures against halo-phenomena
-
- 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
Definitions
- Figs. 1A, 1B and 1C show spectral transmittance of pigments for blue, green and red optical filter layers.
- Line A denotes the relationship between wave lengths of respective color pigments and transmittances
- line B shows characteristic curves of phosphor of the colors.
- This result of the measurement is based on the visual observation by the twenty observers.
Description
- Fig. 1A, Fig. 1B and Fig. 1C are diagrams showing spectral permeability of pigments for blue, green and red optical filters;
- Fig. 2A, Fig. 2B, Fig. 2C, Fig. 2D, Fig. 2E and Fig. 2F are sectional views corresponding to respective processes of the method of manufacturing a phosphor screen of a color picture tube of a first embodiment of the invention;
- Fig. 3A, Fig.3B, Fig. 3C and Fig. 3D are sectional views corresponding to respective main processes of the method of manufacturing a phosphor screen of a color picture tube of the first embodiment of the invention;
- Fig. 4 is a flowchart showing the order of forming an optical filter layer of the first embodiment;
- Fig. 5A, Fig. 5B, Fig. 5C, Fig. 5D, Fig. 5E and Fig. 5F are sectional views corresponding to respective processes of the method of manufacturing a phosphor screen of a color picture tube of a second embodiment of the invention;
- Fig. 6A, Fig. 6B, Fig. 6C and Fig. 6D are sectional views corresponding to respective main processes of the method of manufacturing a phosphor screen of a color picture tube of the second embodiment of the invention; and
- Fig. 7 is a flowchart showing the order of forming an optical filter of the second embodiment.
Pigment layer Forming order | Blue pigment liquid concentration | Green pigment liquid concentration | a* | b* |
B→G→R | 16.5% | 6.6% | Less than -1.8 More than -2.0 | Less than -0.9 More than -1.2 |
G→B→R | 18.3% | 6.0% | Less than -1.9 More than -2.4 | Less than -0.8 More than -1.1 |
Pigment layer Forming order | Green mono-color brightness | Red mono-color brightness | White brightness |
B→G→R | STD | STD | STD |
G→B→R | +7.5% | +10.6% | +6.9% |
- Sicotrans Red 1-2817 (trade name, manufactured by BASF), ferric oxide based, particle diameter of 0.01 µm to 0.02 µm
- Chlmofartal Red A2B (trade name, manufactured by Ciba-Geigy), anthraquinone based, particle diameter of 0.01 µm Blue pigment:
- Cobalt Blue X (trade name, manufactured by Toyo Ganryo, cobalt aluminate (Al2O3-CoO) based, particle diameter of 0.01 µm to 0.02 µm
- Ultramarine Blue No. 8000 (trade name, manufactured by Daiichi Kasei Co., Ltd.), ultramarine blue based, particle diameter of 0.03 µm
- Lionol (trade name, manufactured by Toyo Ink Mfg. Co., Ltd.), phthalocyanine blue based, particle diameter of 0.01 µm
- DAIPYROXIDE TM-GREEN #3320 (trade name, manufactured by Dainichiseika Color & Chemicals Mfg. Co., Ltd.), TiO2-NiO-ZnO based, particle diameter of 0.01 µm to 0.02 µm
- DAIPYROXIDE TM-GREEN #3420 (trade name, manufactured by Dainichiseika Color & Chemicals Mfg. Co., Ltd.), CoO-Al2O3-Cr2O3 based, particle diameter of 0.01 µm to 0.02 µm
- D-801 (trade name, manufactured by Nippon Denko Co., Ltd.), Cr2O3 based, particle diameter of 0.35 µm
- Fastgen Green S (trade name, manufactured by Dainippon Ink and Chemicals, Inc.), chlorinated phthalocyanine green based, particle diameter of 0.01 µm
- Fastgen Green 2YK (trade name, manufactured by Dainippon Ink and Chemicals, Inc.), brominate phthalocyanine green based, particle diameter of 0.01 µm
Claims (3)
- A method of manufacturing a phosphor screen of a color picture tube, comprising the following steps:(a) first forming a black matrix pattern in which a resist remains on a position where an optical filter layer is to be formed by coating the resist inside a panel, exposing and developing thereof;(b) secondly forming a pattern of a green optical filter layer by coating a green pigment inside the panel; and(c) subsequently forming a pattern of a blue or red filter layer thereon.
- The method of manufacturing a phosphor screen of a color picture tube as set forth in claim 1; wherein, a resist used in the step (a) is a water-soluble photosensitive liquid containing at least an azide-based sensitizer or a silane coupling agent.
- The method of manufacturing a phosphor screen of a color picture tube as set forth in claim 1; wherein, the respective optical filter layers have a dot-shaped or stripe-shaped pattern.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56692/97 | 1997-03-11 | ||
JP5669297 | 1997-03-11 | ||
JP5669297 | 1997-03-11 | ||
JP5204998A JPH10312746A (en) | 1997-03-11 | 1998-03-04 | Fluorescent screen forming method for color cathode-ray tube |
JP52049/98 | 1998-03-04 | ||
JP5204998 | 1998-03-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0865066A2 EP0865066A2 (en) | 1998-09-16 |
EP0865066A3 EP0865066A3 (en) | 1999-04-14 |
EP0865066B1 true EP0865066B1 (en) | 2002-12-18 |
Family
ID=26392655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980104308 Expired - Lifetime EP0865066B1 (en) | 1997-03-11 | 1998-03-10 | Method of manufacturing screen of color picture tube |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0865066B1 (en) |
JP (1) | JPH10312746A (en) |
DE (1) | DE69810177T2 (en) |
MY (1) | MY121753A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100298949B1 (en) * | 1999-03-03 | 2001-09-26 | 구자홍 | Structure and method manufacturing phosphor layer in color CRT |
KR20020076886A (en) * | 2001-03-31 | 2002-10-11 | 엘지전자주식회사 | Color cathode ray tube |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3853853B2 (en) * | 1994-12-19 | 2006-12-06 | 株式会社東芝 | Filter pattern manufacturing method |
DE69507874T2 (en) * | 1994-12-26 | 1999-07-29 | Toshiba Kawasaki Kk | Screen and method of making the same |
DE69518731T2 (en) * | 1994-12-26 | 2004-07-01 | Kabushiki Kaisha Toshiba, Kawasaki | Process for the production of an image display screen |
JPH08185799A (en) * | 1994-12-28 | 1996-07-16 | Hitachi Ltd | Manufacture of color cathode-ray tube |
-
1998
- 1998-03-04 JP JP5204998A patent/JPH10312746A/en active Pending
- 1998-03-10 MY MYPI9801037 patent/MY121753A/en unknown
- 1998-03-10 DE DE1998610177 patent/DE69810177T2/en not_active Expired - Fee Related
- 1998-03-10 EP EP19980104308 patent/EP0865066B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH10312746A (en) | 1998-11-24 |
DE69810177T2 (en) | 2003-06-05 |
EP0865066A3 (en) | 1999-04-14 |
EP0865066A2 (en) | 1998-09-16 |
DE69810177D1 (en) | 2003-01-30 |
MY121753A (en) | 2006-02-28 |
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