JPS54105434A - Driving method of fluorescent display tube - Google Patents
Driving method of fluorescent display tubeInfo
- Publication number
- JPS54105434A JPS54105434A JP1193878A JP1193878A JPS54105434A JP S54105434 A JPS54105434 A JP S54105434A JP 1193878 A JP1193878 A JP 1193878A JP 1193878 A JP1193878 A JP 1193878A JP S54105434 A JPS54105434 A JP S54105434A
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- time
- display
- falling
- driving voltage
- 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
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
PURPOSE: To make display of excellent dignity possible with no difference in brightness by preventing the application time of a driving voltage from falling on that of a control signal.
CONSTITUTION: Voltages EG1 to EGn of the control signal supplied from digit selector circuit 3 are applied to grinds G1 to Gn to allow fluorescent anodes of respective digits D1 to Dn to luminesce in sequence selectively for display. Driving voltage Ef applied in order to heat filament cathode F is supplied to F at interval (tf) without falling on application times (t1) to (tn) of the control signal. In this case, it is necessary to set the level and application time (tf) of Ef applied to F so that F can be held at a temperature high enough for hot-electron emission at time (ti) when the control signal for the next digit selection is applied. For the purpose, time (tf) is to the so-called blanking period provided so as to prevent the error display by a dynamic drive.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1193878A JPS54105434A (en) | 1978-02-07 | 1978-02-07 | Driving method of fluorescent display tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1193878A JPS54105434A (en) | 1978-02-07 | 1978-02-07 | Driving method of fluorescent display tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54105434A true JPS54105434A (en) | 1979-08-18 |
Family
ID=11791586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1193878A Pending JPS54105434A (en) | 1978-02-07 | 1978-02-07 | Driving method of fluorescent display tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54105434A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143386A (en) * | 1982-02-19 | 1983-08-25 | シャープ株式会社 | Driver for fluorescent display tube |
JPH01245292A (en) * | 1988-03-26 | 1989-09-29 | Ise Electronics Corp | Driving method of fluorescent display tube |
-
1978
- 1978-02-07 JP JP1193878A patent/JPS54105434A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143386A (en) * | 1982-02-19 | 1983-08-25 | シャープ株式会社 | Driver for fluorescent display tube |
JPH01245292A (en) * | 1988-03-26 | 1989-09-29 | Ise Electronics Corp | Driving method of fluorescent display tube |
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