US4013344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device
Assignee: US Philips Corp
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Filing: 1975-06-09
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Granted: 1977-03-22
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Expires: 1995-06-09
Abstract
Abstract A display device, for example, with a liquid crystal, in which all the output terminals are grouped along the edge of one of the supporting plates of the device. The electric connections between an electrode provided on one of the supporting plates and the output terminals provided on the oppositely located supporting plate consists of contact elements in the form of pills which are formed from a kneadable conductive material.
Inventors
- 👤 Francois Joseph Marie Bescond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
162 words
A display device comprising two parallel spaced apart supporting plates, at least one electrode on the surface of each supporting plate, spacer means separating said plates and defining therewith a closed circumference, a display medium filling the volume defined by said supporting plates and said spacer member, said electrodes extending on parts of the supporting plates outside the said volume, connection strips on one of the supporting plates for electrical connection to said electrodes, contact means providing an electric connection between a connection strip and a corresponding electrode which is provided on the oppositely located supporting plate, said means comprising a pill having a surface area measured in a direction parallel to the surface of the supporting plate which is smaller in all directions than the surface area of the conductive surfaces with which the surface area of the pill is in contact so that the said contact cannot extend further than said surface, said pill consisting of a kneadable conductive material.
Claim 2
Dependent Claim
162 words
A display device comprising two parallel spaced apart supporting plates, at least one electrode on the surface of each supporting plate, spacer means separating said plates and defining therewith a closed circumference, a display medium filling the volume defined by said supporting plates and said spacer member, said electrodes extending on parts of the supporting plates outside the said volume, connection strips on one of the supporting plates for electrical connection to said electrodes, contact means providing an electric connection between a connection strip and a corresponding electrode which is provided on the oppositely located supporting plate, said means comprising a pill having a surface area measured in a direction parallel to the surface of the supporting plate which is smaller in all directions than the surface area of the conductive surfaces with which the surface area of the pill is in contact so that the said contact cannot extend further than said surface, said pill consisting of a kneadable conductive material.
Claim 3
Dependent Claim
14 words
A display device as claimed in claim 1, wherein the pill consists of indium.
Claim 4
Dependent Claim
14 words
A display device as claimed in claim 1, wherein the pill consists of lead.
Claim 5
Dependent Claim
31 words
A display device as claimed in claim 1, wherein the pill consists of an alloy of metals which belong to the group consisting of indium, lead, tin, bismuth, antimony and gallium.
References Cited (Backward Citations)
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Cited
US3680037A
Cited
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Cited
US3829601A
Cited
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Cited
US3861135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |