JPS6434694U - - Google Patents

Info

Publication number
JPS6434694U
JPS6434694U JP1987130382U JP13038287U JPS6434694U JP S6434694 U JPS6434694 U JP S6434694U JP 1987130382 U JP1987130382 U JP 1987130382U JP 13038287 U JP13038287 U JP 13038287U JP S6434694 U JPS6434694 U JP S6434694U
Authority
JP
Japan
Prior art keywords
display tube
circuit
brightness adjustment
adjustment circuit
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
JP1987130382U
Other languages
English (en)
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 filed Critical
Priority to JP1987130382U priority Critical patent/JPS6434694U/ja
Priority to US07/236,991 priority patent/US4999543A/en
Publication of JPS6434694U publication Critical patent/JPS6434694U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る表示管の輝度調整回路図
、第２図は第１図の回路による表示管のグリツド
波形図、第３図及び第４図は従来例を示す図、第
５図は第３図の回路による表示管のグリツド波形
図、第６図は第４図の回路による表示管のグリツ
ド波形図である。 Ｅは入力電源、Ｒは抵抗、ＶＮは点灯用電圧端
子、Ｄは蛍光表示管、Ｐはプレート、Ｇはグリツ
ド。

Claims (1)

  1. 【実用新案登録請求の範囲】 １ 蛍光表示管の電流が多くなると、該表示管の
    点灯用電圧を低下させ、かつ上記電流が少なくな
    ると、上記電圧を上昇させるように作用させる回
    路素子を点灯用電圧形成回路に組込み、輝度の自
    動調整を行うようにしたことを特徴とする表示管
    の輝度調整回路。 ２ 前記回路素子として可変抵抗素子を用いたこ
    とを特徴とする実用新案登録請求の範囲第１項に
    記載の表示管の輝度調整回路。
JP1987130382U 1987-08-27 1987-08-27 Pending JPS6434694U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1987130382U JPS6434694U (ja) 1987-08-27 1987-08-27
US07/236,991 US4999543A (en) 1987-08-27 1988-08-26 Brilliance control circuit for controlling the brilliance of fluorescent display tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987130382U JPS6434694U (ja) 1987-08-27 1987-08-27

Publications (1)

Publication Number Publication Date
JPS6434694U true JPS6434694U (ja) 1989-03-02

Family

ID=15032996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987130382U Pending JPS6434694U (ja) 1987-08-27 1987-08-27

Country Status (2)

Country Link
US (1) US4999543A (ja)
JP (1) JPS6434694U (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606226A (en) * 1995-10-02 1997-02-25 Ford Motor Company Filament power supply for static vacuum fluorescent display

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417255A (en) * 1977-06-29 1979-02-08 Hitachi Ltd Clamping apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335060A (en) * 1886-01-26 doubleday
US2254957A (en) * 1939-10-23 1941-09-02 Gen Electric Electric source of light
US3247390A (en) * 1955-12-01 1966-04-19 Rca Corp Electroluminescent device
US3050654A (en) * 1957-11-06 1962-08-21 Moore & Hall Improvements in light source control and modulation
US2897405A (en) * 1958-10-01 1959-07-28 Rca Corp Control circuits for luminous display devices
US3157822A (en) * 1960-12-30 1964-11-17 Haskell Boris Impedance networks and display panels utilizing the networks
US4135117A (en) * 1978-03-20 1979-01-16 Wagner Electric Corporation Vacuum fluorescent device with continuous strokes
US4450385A (en) * 1982-08-09 1984-05-22 Gte Laboratories Incorporated Inductive ballasting of direct current gas discharges
JPS608896A (ja) * 1983-06-29 1985-01-17 富士通株式会社 ドライブ回路
US4587462A (en) * 1984-08-10 1986-05-06 Gte Laboratories Incorporated Fluorescent light source with parallel DC discharges
US4633141A (en) * 1985-02-28 1986-12-30 Motorola, Inc. Low voltage power source power inverter for an electroluminescent drive

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417255A (en) * 1977-06-29 1979-02-08 Hitachi Ltd Clamping apparatus

Also Published As

Publication number Publication date
US4999543A (en) 1991-03-12

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