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US4403831A Expired / Lapsed US ⏱️ 0.0 years remaining

Display apparatus

Assignee: Sony Corp
•
Filing: 1981-09-10
•
Granted: 1983-09-13
•
Expires: 2001-09-10
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Abstract

Abstract A display apparatus includes a first panel having an electrode provided on one surface thereof, a second panel having an electrode provided on the surface thereof facing to the electrode of the first panel, display material intervened between the electrodes of the first and second panels and a spacer disposed between the first and second panels, the peripheral portions of the first and second panels being sealed by sealing material. In this case, one of the first and second panels comprises a substrate and an elastic plate which is sealed to the substrate with its periphery, and fluid is sealed into a space defined by the substrate and elastic plate with such a pressure that the elastic plate contacts the spacer.

Inventors

  • 👤 Yoshifumi Amano

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 11:18
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/0102; G01; G01D; G01D7/00; G02F1/0107; G09; G09F; G09F13/00; G09F13/24; G09F9/00; G09F9/30

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 116 words
A display apparatus comprising: (a) a first panel having an electrode provided on a surface thereof; (b) a second panel having an electrode provided on a surface thereof; (c) display material intervened between said electrodes of said first and second panels; and (d) a spacer disposed between said first and second panels, peripheral portions of said first and second panels being sealed by sealing material characterized in that one of said first and second panels comprises a substrate and an elastic plate which is sealed to said substrate with its periphery, and fluid is sealed into a space defined by said substrate and elastic plate with such a pressure that said elastic plate contacts said spacer.
Claim 2
Dependent Claim 116 words
A display apparatus comprising: (a) a first panel having an electrode provided on a surface thereof; (b) a second panel having an electrode provided on a surface thereof; (c) display material intervened between said electrodes of said first and second panels; and (d) a spacer disposed between said first and second panels, peripheral portions of said first and second panels being sealed by sealing material characterized in that one of said first and second panels comprises a substrate and an elastic plate which is sealed to said substrate with its periphery, and fluid is sealed into a space defined by said substrate and elastic plate with such a pressure that said elastic plate contacts said spacer.
Claim 3
Dependent Claim 13 words
A display apparatus as claimed in claim 1, wherein said fluid is air.
Claim 4
Dependent Claim 14 words
A display apparatus as claimed in claim 1, wherein said fluid contains ethylene glycol.

References Cited (Backward Citations)

US4148128A Cited
US3877790A Cited
US4150878A Cited
US4130408A Cited
US4346963A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-09-12 1987-03-14 1987-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-09-12 1991-03-14 1991-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-09-12 1995-03-14 1995-09-13 $7700.00 Window Closed / Lapsed

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