IT1234874B - Improved contrast segment display unit - Google Patents

Improved contrast segment display unit

Info

Publication number
IT1234874B
IT1234874B IT8119544A IT1954481A IT1234874B IT 1234874 B IT1234874 B IT 1234874B IT 8119544 A IT8119544 A IT 8119544A IT 1954481 A IT1954481 A IT 1954481A IT 1234874 B IT1234874 B IT 1234874B
Authority
IT
Italy
Prior art keywords
light absorbing
segment
area
anode
display unit
Prior art date
Application number
IT8119544A
Other languages
Italian (it)
Other versions
IT8119544A0 (en
Inventor
Kurt Manfred Tischer
Rolf Zondler
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IT8119544A0 publication Critical patent/IT8119544A0/en
Application granted granted Critical
Publication of IT1234874B publication Critical patent/IT1234874B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/15—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The viewed part of the segmented display uses essentially the same colour pigmentation as the surrounding light absorbing area. The colouring of the viewing or illuminated segment area is a coating of the inside of the segment at the anode whereas the light absorbing coating is on the outside surface of the anode unit. The light absorbing layer is also a non-luminescent white substance, e.g. aluminium oxide, and the result is the luminescent colour of the lighted segment is quite different to the background light absorbing section. A segment comprises an indirectly heated (7) cathode (8) with control grid (9) and the anode (2) with pigmented display area (5). The surrounding light absorbing area (6) is on the outer of the segment so that a wider display is achieved.
IT8119544A 1980-02-08 1981-02-06 Improved contrast segment display unit IT1234874B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3004648A DE3004648C2 (en) 1980-02-08 1980-02-08 Vacuum indicator

Publications (2)

Publication Number Publication Date
IT8119544A0 IT8119544A0 (en) 1981-02-06
IT1234874B true IT1234874B (en) 1992-06-02

Family

ID=6094086

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8119544A IT1234874B (en) 1980-02-08 1981-02-06 Improved contrast segment display unit

Country Status (5)

Country Link
JP (1) JPS56156657A (en)
DE (1) DE3004648C2 (en)
FR (1) FR2475773A1 (en)
GB (1) GB2069231B (en)
IT (1) IT1234874B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136740A (en) * 1981-02-18 1982-08-23 Nec Kagoshima Ltd Fluorescent display tube
JPS58106742A (en) * 1981-12-19 1983-06-25 Futaba Corp Fluorescent indicating lamp
JPS58169851A (en) * 1982-03-31 1983-10-06 Ise Electronics Corp Fluorescent display tube
JPS58193549U (en) * 1982-06-18 1983-12-23 双葉電子工業株式会社 indirectly heated cathode
JPS59136146U (en) * 1983-03-03 1984-09-11 日本電気株式会社 Flat light emitting fluorescent display panel
JPH0612602Y2 (en) * 1986-06-19 1994-03-30 双葉電子工業株式会社 Fluorescent display tube
GB2404774B (en) * 2003-08-07 2007-02-14 Pelikon Ltd Electroluminescent displays
EP1654911A2 (en) * 2003-08-07 2006-05-10 Pelikon Limited Electroluminescent displays

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166176A (en) * 1966-12-13 1969-10-08 Hayakawa Denki Kogyo K K Decimal Digit Indicating Device
JPS4812668B1 (en) * 1969-12-13 1973-04-21
JPS49115476A (en) * 1973-03-03 1974-11-05
US3832034A (en) * 1973-04-06 1974-08-27 Ibm Liquid crystal display assembly
GB1551047A (en) * 1976-07-08 1979-08-22 Marconi Co Ltd Electrophoretic display arrangements
DE2805884C3 (en) * 1978-02-13 1980-08-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Liquid crystal display device with a fluorescent panel

Also Published As

Publication number Publication date
DE3004648C2 (en) 1982-05-06
FR2475773B1 (en) 1984-11-30
GB2069231A (en) 1981-08-19
GB2069231B (en) 1984-02-22
FR2475773A1 (en) 1981-08-14
JPS56156657A (en) 1981-12-03
IT8119544A0 (en) 1981-02-06
DE3004648A1 (en) 1981-08-13

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