JPS5632639A - Plate display device - Google Patents

Plate display device

Info

Publication number
JPS5632639A
JPS5632639A JP10892979A JP10892979A JPS5632639A JP S5632639 A JPS5632639 A JP S5632639A JP 10892979 A JP10892979 A JP 10892979A JP 10892979 A JP10892979 A JP 10892979A JP S5632639 A JPS5632639 A JP S5632639A
Authority
JP
Japan
Prior art keywords
glass
cover glass
coefficient
display device
base board
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
JP10892979A
Other languages
Japanese (ja)
Inventor
Seiji Shiraishi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10892979A priority Critical patent/JPS5632639A/en
Publication of JPS5632639A publication Critical patent/JPS5632639A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

Abstract

PURPOSE:To reinforce the structural strength for a display device of vacuum envelope construction when it is enlarged and easily prevent implosion of its envelope, by arranging the dimension of plate thickness and coefficient of thermal expansion for its cover glass smaller than those for its glass base board. CONSTITUTION:On a glass base board 1 a cover glass 2 is placed, applied a sealing process at the prescribed sealed surface by the method of using a soldering glass 5 and evacuated air to constitute a vacuum envelope. The dimension of plate thickness and coefficient of thermal expansion for the cover glass 2 in a plate display device of such a type as described are arranged smaller than those for the glass base board 1 respectively. For instance, the cover glass 2 is fabricated from a window plate glass of linear expansion coefficient of about 99X10<-7>/ deg.C and the glassbase board 1 from a bottle glass of linear expansion coefficient of about 107X10<-7>/ deg.C simultaneously with the plate thickness of the latter not less than 50% larger than that of the former. In this way, a difference of shrinkage between the both materials of glass after the sealing work can be converted into a compressive strain of the cover glass 2 to decrease a tensile strain due to the evacuation of air as shown by an externally directional arrow marks in the drawing, resulting in the reinforcement of the structural strength.
JP10892979A 1979-08-27 1979-08-27 Plate display device Pending JPS5632639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10892979A JPS5632639A (en) 1979-08-27 1979-08-27 Plate display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10892979A JPS5632639A (en) 1979-08-27 1979-08-27 Plate display device

Publications (1)

Publication Number Publication Date
JPS5632639A true JPS5632639A (en) 1981-04-02

Family

ID=14497229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10892979A Pending JPS5632639A (en) 1979-08-27 1979-08-27 Plate display device

Country Status (1)

Country Link
JP (1) JPS5632639A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60218733A (en) * 1984-04-14 1985-11-01 Futaba Corp Envelope of display tube and its manufacture
JPH03141535A (en) * 1990-10-19 1991-06-17 Futaba Corp Casing of display tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60218733A (en) * 1984-04-14 1985-11-01 Futaba Corp Envelope of display tube and its manufacture
JPH0423369B2 (en) * 1984-04-14 1992-04-22 Futaba Denshi Kogyo Kk
JPH03141535A (en) * 1990-10-19 1991-06-17 Futaba Corp Casing of display tube

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