Patent US4964700A successfully refreshed from Google Patents.
US4964700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connection structure between a liquid crystal panel and an external circuit
Assignee: Canon Inc
•
Filing: 1989-12-08
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Granted: 1990-10-23
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Expires: 2009-12-08
Abstract
Abstract A connection structure between a liquid crystal panel and an external circuit. The connection structure comprise an external circuit connection electrode connected to a drive electrode for a liquid crystal panel with a ferroelectric liquid crystal and arranged on a substrate of the liquid crystal panel, an external circuit electrode connected to an external circuit and arranged on a substrate of the external circuit, and a thermosetting component arranged between the external circuit connection electrode and the external circuit electrode and composed of a thermosetting resin containing dispersed conductor particles.
Inventors
- 👤 Hiroshi Takabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:30
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H01; H01R; H01R4/00; H01R4/04; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/321; H05K3/323; H05K2203/00; H05K2203/01; H05K2203/0195; H05K3/34; H05K3/3494; H05K3/36; H05K3/361
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
94 words
A liquid crystal apparatus comprising: (a) a liquid crystal panel having a chiral smectic liquid crystal developed by temperature decrease from a first temperature higher than a second temperature which develops a chiral smectic phase; (b) a driving circuit for driving said liquid crystal panel; and (c) connecting means for electrically connecting said liquid crystal panel and said driving circuit, comprising a first terminal provided on said liquid crystal panel, a second terminal provided on said driving circuit, and a thermoset film containing plural dispersed conductor particles, disposed between said first and second terminals.
Claim 2
Dependent Claim
94 words
A liquid crystal apparatus comprising: (a) a liquid crystal panel having a chiral smectic liquid crystal developed by temperature decrease from a first temperature higher than a second temperature which develops a chiral smectic phase; (b) a driving circuit for driving said liquid crystal panel; and (c) connecting means for electrically connecting said liquid crystal panel and said driving circuit, comprising a first terminal provided on said liquid crystal panel, a second terminal provided on said driving circuit, and a thermoset film containing plural dispersed conductor particles, disposed between said first and second terminals.
Claim 3
Dependent Claim
36 words
A liquid crystal apparatus according to claim 1, wherein said smectic liquid crystal is developed by the temperature decrease from the first temperature, with an electrical connection between said liquid crystal panel and said driving circuit.
Claim 4
Dependent Claim
28 words
A liquid crystal apparatus according to claim 1, wherein said thermoset film is formed by heating a film comprising a thermosetting resin containing said plural dispersed conductor particles.
Claim 5
Dependent Claim
31 words
A liquid crystal apparatus according to claim 3, wherein said thermoset film is a material selected from the group consisting of thermosetting epoxy resin, thermosetting silicon resin, and thermosetting polyamide resin.
Claim 6
Dependent Claim
31 words
A liquid crystal apparatus according to claim 3, wherein said thermoset film comprises 0.5 to 50 parts by weight of conductor and 100 parts by weight of a solid thermosetting resin.
Claim 7
Dependent Claim
30 words
A liquid crystal apparatus according to claim 3, wherein said thermosetting film comprises 5 to 20 parts by weight of conductor and 100 parts by weight by solid thermosetting resin.
Claim 8
Dependent Claim
28 words
A liquid crystal apparatus according to claim 1, wherein said chiral smectic liquid crystal is developed by temperature decrease from an isotropic phase temperature as the first temperature.
Claim 9
Dependent Claim
20 words
A liquid crystal apparatus according to claim 1, wherein said chiral smectic liquid crystal shows a bistable molecular orientation state.
Claim 10
Dependent Claim
26 words
A liquid crystal apparatus according to claim 1, wherein the chiral smectic phase is either a chiral smectic C phase or a chiral smectic H phase.
Claim 11
Dependent Claim
35 words
A liquid crystal apparatus according to claim 1, wherein the chiral smectic phase is developed by a gradual cooling down from an isotropic phase after passing through a cholesteric phase and a smectic A phase.
Claim 12
Dependent Claim
31 words
A liquid crystal apparatus according to claim 1, wherein said thermostat film comprises 5 to 20 parts by weight of conductors and 100 parts by weight by a solid thermosetting resin.
Claim 13
Dependent Claim
109 words
A liquid crystal apparatus comprising: (a) a liquid crystal panel comprising a liquid crystal having a temperature range in which a chiral smectic phase is developed; (b) a driving circuit for driving said liquid crystal panel; (c) connecting means for electrically connecting said liquid crystal panel and said driving circuit, comprising a first terminal provided on said driving circuit, and a thermoset film containing plural dispersed conductor particles, disposed between said first and second terminals; and (d) means for heating said liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling said liquid crystal panel to the chiral smectic phase temperature.
Claim 14
Dependent Claim
109 words
A liquid crystal apparatus comprising: (a) a liquid crystal panel comprising a liquid crystal having a temperature range in which a chiral smectic phase is developed; (b) a driving circuit for driving said liquid crystal panel; (c) connecting means for electrically connecting said liquid crystal panel and said driving circuit, comprising a first terminal provided on said driving circuit, and a thermoset film containing plural dispersed conductor particles, disposed between said first and second terminals; and (d) means for heating said liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling said liquid crystal panel to the chiral smectic phase temperature.
Claim 15
Dependent Claim
20 words
A liquid crystal apparatus according to claim 12, wherein said liquid crystal assumes an isotropic phase at the first temperature.
Claim 16
Dependent Claim
20 words
A liquid crystal apparatus according to claim 12, wherein said liquid crystal assumes a cholesteric phase at the first temperature.
Claim 17
Dependent Claim
28 words
A liquid crystal apparatus according to claim 12, wherein said thermoset film is formed by heating a film comprising a thermosetting resin containing said plural dispersed conductor particles.
Claim 18
Dependent Claim
31 words
A liquid crystal apparatus according to claim 12, wherein said thermosetting resin is a material selected from the group consisting of thermosetting epoxy resin, thermosetting silicon resin, and thermosetting polyamide resin.
Claim 19
Dependent Claim
31 words
A liquid crystal apparatus according to claim 12, wherein said thermoset film comprises 0.5 to 50 parts by weight of conductors and 100 parts by weight of a solid thermosetting resin.
Claim 20
Dependent Claim
20 words
A liquid crystal apparatus according to claim 12, wherein the chiral smectic liquid crystal shows a bistable molecular orientation state.
Claim 21
Dependent Claim
33 words
A liquid crystal apparatus according to claim 12, wherein the chiral smectic phase is a phase selected from the group consisting of a chiral smectic C phase and a chiral smectic H phase.
Claim 22
Dependent Claim
37 words
A liquid crystal apparatus according to claim 12, wherein said liquid crystal assumes the chiral smectic phase by a gradual cooling down from an isotropic phase after passing through a cholesteric phase and a smectic A phase.
Claim 23
Dependent Claim
21 words
A liquid crystal apparatus according to claim 12 wherein said liquid crystal assumes a smectic A phase at the first temperature.
Claim 24
Dependent Claim
105 words
A liquid crystal apparatus produced by a method comprising the steps of: (a) electrically connecting a liquid crystal panel comprising a liquid crystal having a temperature range showing a chiral smectic phase and a driving circuit for driving the liquid crystal panel, by disposing a thermoset film containing plural dispersed conductor particles between a first terminal provided on the liquid crystal panel and a second terminal provided on the driving circuit; and (b) heating the liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling the liquid crystal panel to a temperature of the chiral smectic phase.
Claim 25
Dependent Claim
105 words
A liquid crystal apparatus produced by a method comprising the steps of: (a) electrically connecting a liquid crystal panel comprising a liquid crystal having a temperature range showing a chiral smectic phase and a driving circuit for driving the liquid crystal panel, by disposing a thermoset film containing plural dispersed conductor particles between a first terminal provided on the liquid crystal panel and a second terminal provided on the driving circuit; and (b) heating the liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling the liquid crystal panel to a temperature of the chiral smectic phase.
Claim 26
Dependent Claim
23 words
A liquid crystal apparatus according to claim 22, wherein said liquid crystal is one which assumes an isotropic phase at the first temperature.
Claim 27
Dependent Claim
23 words
A liquid crystal apparatus according to claim 22, wherein said liquid crystal is one which assumes a cholesteric phase at the first temperature.
Claim 28
Dependent Claim
24 words
A liquid crystal apparatus according to claim 22, wherein said liquid crystal is one which assumes a smectic a phase at the first temperature.
Claim 29
Dependent Claim
28 words
A liquid crystal apparatus according to claim 22, wherein said thermoset film is formed by heating a film comprising a thermosetting resin containing said plural dispersed conductor particles.
Claim 30
Dependent Claim
31 words
A liquid crystal apparatus according to claim 26, wherein said thermosetting resin is a material selected from the group consisting of thermosetting epoxy resin, thermosetting silicon resin, and thermosetting polyamide resin.
Claim 31
Dependent Claim
31 words
A liquid crystal apparatus according to claim 22, wherein said thermoset film comprises 0.5 to 50 parts by weight of conductors and 100 parts by weight of a solid thermosetting resin.
Claim 32
Dependent Claim
31 words
A liquid crystal apparatus according to claim 22, wherein said thermoset film comprises 5 to 20 parts by weight of conductors and 100 parts by weight of a solid thermosetting resin.
Claim 33
Dependent Claim
23 words
A liquid crystal apparatus according to claim 22, wherein said chiral smectic liquid crystal is one which shows a bistable molecular orientation state.
Claim 34
Dependent Claim
35 words
A liquid crystal apparatus according to claim 22, wherein the chiral smectic phase is developed by a gradual cooling down from an isotropic phase after passing through a cholesteric phase and a smectic A phase.
Claim 35
Dependent Claim
33 words
A liquid crystal apparatus according to claim 22, wherein the chiral smectic phase is a phase selected from the group consisting of a chiral smectic C phase and a chiral smectic H phase.
Claim 36
Independent Claim
116 words
A method for connecting a liquid crystal apparatus comprising a liquid crystal panel and a driving circuit, said method comprising the steps of: (a) electrically connecting the liquid crystal panel comprising a liquid crystal having a temperature range showing a chiral smectic phase and the driving circuit for driving the liquid crystal panel, by disposing a thermoset film containing plural dispersed conductor particles between a first terminal provided on the liquid crystal panel and a second terminal provided on the driving circuit; and (b) heating the liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling the liquid crystal panel to a temperature of the chiral smectic phase.
Claim 37
Independent Claim
116 words
A method for connecting a liquid crystal apparatus comprising a liquid crystal panel and a driving circuit, said method comprising the steps of: (a) electrically connecting the liquid crystal panel comprising a liquid crystal having a temperature range showing a chiral smectic phase and the driving circuit for driving the liquid crystal panel, by disposing a thermoset film containing plural dispersed conductor particles between a first terminal provided on the liquid crystal panel and a second terminal provided on the driving circuit; and (b) heating the liquid crystal panel to a first temperature higher than that of the chiral smectic phase, and then cooling the liquid crystal panel to a temperature of the chiral smectic phase.
Claim 38
Dependent Claim
21 words
A method according to claim 33, wherein the liquid crystal is one which assumes an isotropic phase at the first temperature.
Claim 39
Dependent Claim
21 words
A method according to claim 33, wherein the liquid crystal is one which assumes a cholesteric phase at the first temperature.
Claim 40
Dependent Claim
22 words
A method according to claim 33, wherein the liquid crystal is one which assumes a smectic A phase at the first temperature.
Claim 41
Dependent Claim
26 words
A method according to claim 33, wherein the thermoset film is formed by heating a film comprising a thermosetting resin containing the plural dispersed conductor particles.
Claim 42
Dependent Claim
29 words
A method according to claim 37, wherein the thermosetting resin is a material selected from the group consisting of thermosetting epoxy resin, thermosetting silicon resin, and thermosetting polyamide resin.
Claim 43
Dependent Claim
29 words
A method according to claim 33, wherein the thermoset film comprises 0.5 to 50 parts by weight of conductors and 100 parts by weight of a solid thermosetting resin.
Claim 44
Dependent Claim
29 words
A method according to claim 33, wherein the thermoset film comprises 5 to 20 parts by weight of conductors and 100 parts by weight of a solid thermosetting resin.
Claim 45
Dependent Claim
21 words
A method according to claim 33, wherein the chiral smectic liquid crystal is one which shows a bistable molecular orientation state.
Claim 46
Dependent Claim
33 words
A method according to claim 23, wherein the chiral smectic phase is developed by a gradual cooling down from an isotropic phase after passing through a cholesteric phase and a smectic A phase.
Claim 47
Dependent Claim
31 words
A method according to claim 33, wherein the chiral smectic phase is a phase selected from the group consisting of a chiral smectic C phase and a chiral smectic H phase.
References Cited (Backward Citations)
JPS5425464A
Cited
JPS5535326A
Cited
JPS5670529A
Cited
EP0110382A2
Cited
US4640581A
Cited
US4639089A
Cited
US4592858A
Cited
US4723839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |