JPS5466071A - Formation method of fluorescent screen of color picture tube - Google Patents
Formation method of fluorescent screen of color picture tubeInfo
- Publication number
- JPS5466071A JPS5466071A JP13255077A JP13255077A JPS5466071A JP S5466071 A JPS5466071 A JP S5466071A JP 13255077 A JP13255077 A JP 13255077A JP 13255077 A JP13255077 A JP 13255077A JP S5466071 A JPS5466071 A JP S5466071A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent
- thickness
- slurry
- constant
- picture tube
- 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.)
- Granted
Links
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
PURPOSE: To obtain a color picture tube excellent in color purity and high in bright ness by forming a constant-thickness and fine fluorescent screen without hole by applying an ultrasonic wave for a certain time after forming the fluorescent film by a slurry method.
CONSTITUTION: A slurry with constant specific gravity and viscosity is rotation- applied onto the pannel inside surface and made familiar over the entire surface, and an excessive slurry is caused to flow away from four corners of the panel through the high-speed rotation to obtain the desired film thickness. Then, dry-type ultrasonic-wave electrodes are made in contact with both the sides of the panel and ultrasonic waves are applied at 10 to 30 KHz for 10 to 60 seconds (optimum time is decided by carrying out the experiment). In this way, ultrasonic waves are applied while the fluorescent film is formed by a slurry method to a desired thickness and still wet, fluorescent-substance particles steady start vibrating finely to make the coating thickness constant, and fluorescent-substance particles are trapped even where no particles reside, so that the fine fluorescent film without aperture can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13255077A JPS6024528B2 (en) | 1977-11-07 | 1977-11-07 | Color picture tube fluorescent surface formation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13255077A JPS6024528B2 (en) | 1977-11-07 | 1977-11-07 | Color picture tube fluorescent surface formation method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5466071A true JPS5466071A (en) | 1979-05-28 |
JPS6024528B2 JPS6024528B2 (en) | 1985-06-13 |
Family
ID=15083900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13255077A Expired JPS6024528B2 (en) | 1977-11-07 | 1977-11-07 | Color picture tube fluorescent surface formation method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6024528B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0716492Y2 (en) * | 1986-06-02 | 1995-04-19 | 河西工業株式会社 | Interior parts for automobiles |
-
1977
- 1977-11-07 JP JP13255077A patent/JPS6024528B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6024528B2 (en) | 1985-06-13 |
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