US3899707A - Cold cathode discharge type display device - Google Patents

Cold cathode discharge type display device Download PDF

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Publication number
US3899707A
US3899707A US409851A US40985173A US3899707A US 3899707 A US3899707 A US 3899707A US 409851 A US409851 A US 409851A US 40985173 A US40985173 A US 40985173A US 3899707 A US3899707 A US 3899707A
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US
United States
Prior art keywords
substrate
cathode
display device
discharge
anode
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.)
Expired - Lifetime
Application number
US409851A
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English (en)
Inventor
Rentaro Sasaki
Akinori Watanabe
Mamoru Ikegame
Tatsuo Ogasawara
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.)
Oki Electric Industry Co Ltd
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Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Application granted granted Critical
Publication of US3899707A publication Critical patent/US3899707A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/26—Signs formed by electric discharge tubes

Definitions

  • This invention relates to a cold cathode discharge type display device wherein a definite space is provided above or beneath the anode or cathode electrode thereby enabling quick switching of the display of the desired patterns.
  • the conventional cold cathode discharge type display device comprising a lamination of an anode electrode, a cathode electrode, spacers, a starting electrode and upper and lower substrates
  • display of a desired pattern is made by selectively operating discharge cells provided through the lamination. Since cations and secondary electrons formed in the discharge cell are extinguished by the upper and lower substrates it takes a certain time between the initiation of the discharge in the discharge cells which are selected on the time division basis and the completion of the display of a desired multi-digit pattern. For this reason, in order to display the patterns without giving the feeling of flickering to the eyes, it is necessary to increase the frequency of the time division signals for operating the display device. Furthermore, when the spacing between respective discharge cells is smaller than the spacing between the anode and cathode electrodes, adjacent discharge cells interfere with each other thereby causing discharge of not selected discharge cells.
  • Another object of this invention is to provide and improved cold cathode discharge type display device provided with a plurality of discharge cells which are operated selectively and sequentially and means for diffusing secondary electrons and cations remaining in a previously operated discharge cell thus displaying desired patterns at a high speed.
  • a cold cathode discharge type display device of the class wherein a cathode substrate, a starting electrode substrate, and an anode substrate are laminated between upper and lower insulative substrates, the cathode substrate, the starting electrode substrate and the anode substrate are provided with a plurality of sets of aligned perforations which are arranged in a plurality of matrixes, and the perforations act as discharge cells, characterized by a deionization gap contiguous with the discharge cells.
  • the deionization gap is provided between the upper insulative substrate and the cathode substrate.
  • the cold cathode discharge type display device illustrated in FIG. 1 comprises a upper transparent insulative substrate 1 made of glass, for example, a cathode substrate 2 spaced a predetermined distance from the insulative substrate 1 and provided with a plurality of perforations 3 which are arranged in a plurality of similar matrixes, the surface of the cathode substrate 2 confronting the insulative substrate 1 and the inner walls of perforations 3 being plated with metal to form a cathode electrode, spacers 4 and 5 each provided with perforations 3 which are arranged in a plurality of ma- .trixes, a starting electrode substrate 6 also provided with matrixes of perforations 3, the inner walls thereof being plated to form starting electrodes, an anode substrate 7 formed with a resistor 8 on the upper surface,
  • the surface of the resistors confronting the starting electrode substrate 6 being plated with nickel, for example, to form anode electrodes
  • the lower surface of the resistors 8 being covered by a thin sheet of an electric conductor 9 made of 42-6 alloy, for example, and a lower insulative substrate 10.
  • FIG. 1 Various substrates are laminated as shown in FIG. 1 and the periphery of the lamination is sealed in an air tight fashion by means of fused glass. After evacuating the sealed assembly, inert gas such as neon or argon is sealed in the assembly to complete the cold cathode discharge type display device of this invention.
  • inert gas such as neon or argon is sealed in the assembly to complete the cold cathode discharge type display device of this invention.
  • FIG. 2 shows a sectional view of the novel cold cathode discharge type display device in which 11 shows the cathode electrode, 12 starting electrodes, 13 anode electrodes, and 14 a deionization space or gap between the transparent insulative substrate 1 and the cathode electrode 1 1.
  • Each set of aligned perforations 3 constitutes a discharge cell.
  • the selection time of one discharge cell elapses, the discharge thereof terminates but in the perforations 3 of that cell, secondary electrons and cations still remain.
  • a half selection voltage is impressed upon the discharge cell previously selected at the time of selecting the next discharge cell, in the novel cold cathode discharge type display device of this invention, the secondary electrons and anions remaining in the previously selected discharge cell are extinguished by diffusing into the deionization space 14 between the insulative substrate 1 and the cathode electrode 11 so that previously selected discharge cell would not be caused to discharge again by the half selection voltage.
  • the deionization space or gap 14 prevents any interference between adjacent discharge cells so that it is possible to increase the frequency of the time division selection and to continuously display patterns at high speeds.
  • trode substrate and anode substrate are provided-with a plurality of sets of aligned perforations which are arranged in a plurality of matrixes, and said perforations act as discharge cells, the improvement which comprises spacing means for one of said insulative substrates for forming a deionization gap area over said matrixes contiguous with said discharge cells.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Gas-Filled Discharge Tubes (AREA)
US409851A 1972-11-01 1973-10-26 Cold cathode discharge type display device Expired - Lifetime US3899707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972125411U JPS5325495Y2 (enrdf_load_stackoverflow) 1972-11-01 1972-11-01

Publications (1)

Publication Number Publication Date
US3899707A true US3899707A (en) 1975-08-12

Family

ID=14909431

Family Applications (1)

Application Number Title Priority Date Filing Date
US409851A Expired - Lifetime US3899707A (en) 1972-11-01 1973-10-26 Cold cathode discharge type display device

Country Status (5)

Country Link
US (1) US3899707A (enrdf_load_stackoverflow)
JP (1) JPS5325495Y2 (enrdf_load_stackoverflow)
DE (1) DE2354625C3 (enrdf_load_stackoverflow)
FR (1) FR2204879B1 (enrdf_load_stackoverflow)
GB (1) GB1399440A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341976A (en) * 1980-03-05 1982-07-27 Alpha-Omega Development, Inc. Display system
US4376256A (en) * 1980-03-05 1983-03-08 Alpha-Omega Development, Inc. Segment display system
US4554482A (en) * 1981-04-28 1985-11-19 Okaya Electric Industries Co., Ltd. DC Type gas discharge display panels
US5004950A (en) * 1988-09-16 1991-04-02 Samsung Electron Devices Co., Ltd. Plasma display panel arranged with auxiliary electrode
FR2656453A1 (fr) * 1989-12-22 1991-06-28 Sumsung Electron Devices Co Lt Panneau d'affichage a plasma.
WO1996004672A1 (en) * 1994-08-03 1996-02-15 Alliedsignal Inc. A gas discharge display having printed circuit board members and method of making same
US5570104A (en) * 1993-02-24 1996-10-29 Sony Corporation Discharge chamber and method of manufacturing the same
US5990620A (en) * 1997-09-30 1999-11-23 Lepselter; Martin P. Pressurized plasma display

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600626A (en) * 1969-11-26 1971-08-17 Burroughs Corp Multicell display device having communication paths between adjacent cells
US3766420A (en) * 1972-03-17 1973-10-16 Burroughs Corp Panel-type display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600626A (en) * 1969-11-26 1971-08-17 Burroughs Corp Multicell display device having communication paths between adjacent cells
US3766420A (en) * 1972-03-17 1973-10-16 Burroughs Corp Panel-type display device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341976A (en) * 1980-03-05 1982-07-27 Alpha-Omega Development, Inc. Display system
US4376256A (en) * 1980-03-05 1983-03-08 Alpha-Omega Development, Inc. Segment display system
US4554482A (en) * 1981-04-28 1985-11-19 Okaya Electric Industries Co., Ltd. DC Type gas discharge display panels
US5004950A (en) * 1988-09-16 1991-04-02 Samsung Electron Devices Co., Ltd. Plasma display panel arranged with auxiliary electrode
FR2656453A1 (fr) * 1989-12-22 1991-06-28 Sumsung Electron Devices Co Lt Panneau d'affichage a plasma.
US5570104A (en) * 1993-02-24 1996-10-29 Sony Corporation Discharge chamber and method of manufacturing the same
WO1996004672A1 (en) * 1994-08-03 1996-02-15 Alliedsignal Inc. A gas discharge display having printed circuit board members and method of making same
US5990620A (en) * 1997-09-30 1999-11-23 Lepselter; Martin P. Pressurized plasma display

Also Published As

Publication number Publication date
DE2354625C3 (de) 1979-09-27
DE2354625B2 (de) 1979-01-25
GB1399440A (en) 1975-07-02
JPS4980659U (enrdf_load_stackoverflow) 1974-07-12
FR2204879B1 (enrdf_load_stackoverflow) 1978-02-10
FR2204879A1 (enrdf_load_stackoverflow) 1974-05-24
DE2354625A1 (de) 1974-05-22
JPS5325495Y2 (enrdf_load_stackoverflow) 1978-06-29

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