JPS54105434A - Driving method of fluorescent display tube - Google Patents

Driving method of fluorescent display tube

Info

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
Application number
JP1193878A
Other languages
Japanese (ja)
Inventor
Mitsuo Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1193878A priority Critical patent/JPS54105434A/en
Publication of JPS54105434A publication Critical patent/JPS54105434A/en
Pending legal-status Critical Current

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
JP1193878A 1978-02-07 1978-02-07 Driving method of fluorescent display tube Pending JPS54105434A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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