JPS54146574A - Picture display unit - Google Patents
Picture display unitInfo
- Publication number
- JPS54146574A JPS54146574A JP5481078A JP5481078A JPS54146574A JP S54146574 A JPS54146574 A JP S54146574A JP 5481078 A JP5481078 A JP 5481078A JP 5481078 A JP5481078 A JP 5481078A JP S54146574 A JPS54146574 A JP S54146574A
- Authority
- JP
- Japan
- Prior art keywords
- electron
- rays
- cathode
- discharge
- redoubling
- 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
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE: To ensure the projection of the pictures free from the flicker noise by redoubling the field discharge electron current sent from the needle-type cathode through the electron redoubling device and then making the electron current enter the anode band rays to discharge completely the electric charge stored in the anode target.
CONSTITUTION: The voltage occurring between needle-type cathode 5 and electron redoubling device 11 is increased enough to give the field discharge to the electron and also reduced enough not to discharge the electron. As a result, only cathode 5 on cathode band rays 2 discharges the electron, and thus the needle-type cathodes on other cathode band rays discharge no electron. The electron discharged from catnode 5 is redoubled by device 11 and then sent to anode band rays 1. And only the electron which faces to rays 1 connecting to anode target 3 gives impact to rays 1 to make the fluorescent film provided on rays 1 emit the light to form one picture element. Other electrons return to device 11. In this case, the luminous brightness of the fluorescent film can be controlled by controlling the charge amount stored in rays 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5481078A JPS54146574A (en) | 1978-05-08 | 1978-05-08 | Picture display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5481078A JPS54146574A (en) | 1978-05-08 | 1978-05-08 | Picture display unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54146574A true JPS54146574A (en) | 1979-11-15 |
JPS6224896B2 JPS6224896B2 (en) | 1987-05-30 |
Family
ID=12981063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5481078A Granted JPS54146574A (en) | 1978-05-08 | 1978-05-08 | Picture display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146574A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0536473Y2 (en) * | 1987-06-30 | 1993-09-14 |
-
1978
- 1978-05-08 JP JP5481078A patent/JPS54146574A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6224896B2 (en) | 1987-05-30 |
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