Patent EP0327278A2 successfully refreshed from Google Patents.
US5223965A
Expired / Lapsed
US
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Electrode connecting device of liquid crystal display element having a protecting film for absorbing stress applied to the electrode at a thermal press-fixing time
Assignee: Ricoh Co Ltd
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Filing: 1992-07-09
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Granted: 1993-06-29
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Expires: 2012-07-09
Abstract
Abstract An electrode connecting device of a liquid crystal display element connects a transparent electrode terminal formed on a substrate constructed by a flexible film to an electrode terminal of a driving circuit and an external circuit through an anisotropic conductive film. The electrode connecting device has a protecting film formed on a surface of a connecting portion on which the transparent electrode terminal is formed. The protecting film can absorb stress applied to the transparent electrode at a thermal press-fixing time and can move conductive particles within the anisotropic conductive film. Both the electrodes are electrically connected to each other through the conductive particles within the anisotropic conductive film extending through the protecting film. The protecting film may be disposed on only the transparent electrode. A peripheral substrate portion around both the connected electrodes may be covered with another protecting film.
Inventors
- 👤 Yuichi Ota
- 👤 Takumi Suzuki
- 👤 Yuji Narumi
- 👤 Satoshi Taguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:24
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H01; H01R; H01R12/00; H01R12/70; H01R12/7076; H01R4/00; H01R4/04; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/321; H05K3/323; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10954; H05K2201/10977; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0522; H05K2203/11; H05K2203/1189; H05K3/303; H05K3/305; H05K3/36; H05K3/361
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
An electrode connecting device of a liquid crystal display element for connecting a transparent electrode terminal formed on a substrate constructed by a flexible film to an electrode terminal of a driving circuit and an external circuit through an anisotropic conductive film, said electrode connecting device comprising: a protecting film formed on a surface of a connecting portion on which the transparent electrode terminal is formed; the protecting film being able to absorb stress applied to the transparent electrode at a thermal press-fixing time and move conductive particles within the anisotropic conductive film; and both said electrodes being electrically connected to each other through the conductive particles within the anisotropic conductive film extending through said protecting film.
Claim 2
Dependent Claim
117 words
An electrode connecting device of a liquid crystal display element for connecting a transparent electrode terminal formed on a substrate constructed by a flexible film to an electrode terminal of a driving circuit and an external circuit through an anisotropic conductive film, said electrode connecting device comprising: a protecting film formed on a surface of a connecting portion on which the transparent electrode terminal is formed; the protecting film being able to absorb stress applied to the transparent electrode at a thermal press-fixing time and move conductive particles within the anisotropic conductive film; and both said electrodes being electrically connected to each other through the conductive particles within the anisotropic conductive film extending through said protecting film.
Claim 3
Dependent Claim
33 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein a thickness of said protecting film is smaller than a diameter of each of the conductive particles.
Claim 4
Dependent Claim
31 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein a basic material of said protecting film is made of polyurethane resin or polyolefin resin.
Claim 5
Dependent Claim
26 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein said protecting film is disposed on only the transparent electrode.
Claim 6
Dependent Claim
21 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein said protecting film is colored.
Claim 7
Dependent Claim
26 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein said protecting film is formed by an electric insulating material.
Claim 8
Dependent Claim
31 words
An electrode connecting device of a liquid crystal display element as claimed in claim 1, wherein a peripheral substrate portion around both the connected electrodes is covered with another protecting film
Claim 9
Dependent Claim
132 words
An electrode connecting device of a liquid crystal display element for connecting a transparent electrode terminal formed on a substrate constructed by a flexible film to an electrode terminal of a driving circuit and an external circuit through an anisotropic conductive film, said electrode connecting device comprising: a protecting film formed on a surface of a connecting portion on which the transparent electrode terminal is formed; the protecting film being able to absorb stress applied to the transparent electrode at a thermal press-fixing time and move conductive particles within the anisotropic conductive film; both said electrodes being electrically connected to each other through the conductive particles within the anisotropic conductive film extending through said protecting film; and a peripheral substrate portion around both the connected electrodes being covered with another protecting film.
Claim 10
Dependent Claim
132 words
An electrode connecting device of a liquid crystal display element for connecting a transparent electrode terminal formed on a substrate constructed by a flexible film to an electrode terminal of a driving circuit and an external circuit through an anisotropic conductive film, said electrode connecting device comprising: a protecting film formed on a surface of a connecting portion on which the transparent electrode terminal is formed; the protecting film being able to absorb stress applied to the transparent electrode at a thermal press-fixing time and move conductive particles within the anisotropic conductive film; both said electrodes being electrically connected to each other through the conductive particles within the anisotropic conductive film extending through said protecting film; and a peripheral substrate portion around both the connected electrodes being covered with another protecting film.
References Cited (Backward Citations)
JPS59149327A
Cited
JPS60225828A
Cited
JPS6235473A
Cited
JPS638633A
Cited
US4832455A
Cited
US4964700A
Cited
JPH0235922A
Cited
JPH0439625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |