JPS57202628A - Projection type cathode ray tube - Google Patents
Projection type cathode ray tubeInfo
- Publication number
- JPS57202628A JPS57202628A JP8749081A JP8749081A JPS57202628A JP S57202628 A JPS57202628 A JP S57202628A JP 8749081 A JP8749081 A JP 8749081A JP 8749081 A JP8749081 A JP 8749081A JP S57202628 A JPS57202628 A JP S57202628A
- Authority
- JP
- Japan
- Prior art keywords
- face
- inner face
- face plate
- material layer
- ray 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.)
- Pending
Links
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
- H01J29/185—Luminescent screens measures against halo-phenomena
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE:To prevent the deterioration of the brightness due to the temperature rise and the deterioration of the resolution due to the light diffusion of the fluorescent face, by forming the grid separation wall composed of the opaque material on the inner face of the face plate while coating the inner face between said walls with specific thickness of the fluorescent material layer through a transparent conductive film. CONSTITUTION:The inner face of a face plate 4 is coated with the grid separation wall 12 made of the opaque member such as the metal having the electrical and thermal conductivity with the predetermined pitch, width and height then the inner face of the face plate between said walls 12 is coated with the fluorescent material layer 13. Here the thickness (b) of said wall and the thickness (a) of the fluorescent material layer 13 has the relation a<=b. Then a thin metalback 14 made of Al is formed at the opposite face of the face plate of said wall 12 and said layer 13. Consequently a cathode ray tube having high brightness and high resolution is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8749081A JPS57202628A (en) | 1981-06-09 | 1981-06-09 | Projection type cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8749081A JPS57202628A (en) | 1981-06-09 | 1981-06-09 | Projection type cathode ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57202628A true JPS57202628A (en) | 1982-12-11 |
Family
ID=13916390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8749081A Pending JPS57202628A (en) | 1981-06-09 | 1981-06-09 | Projection type cathode ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57202628A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004022247A (en) * | 2002-06-13 | 2004-01-22 | Kakuma:Kk | Fluorescent screen of electron beam tube and display device using electron beam tube using it |
-
1981
- 1981-06-09 JP JP8749081A patent/JPS57202628A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004022247A (en) * | 2002-06-13 | 2004-01-22 | Kakuma:Kk | Fluorescent screen of electron beam tube and display device using electron beam tube using it |
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