US4455185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing liquid crystal display element
Assignee: Hitachi Ltd
•
Filing: 1982-09-07
•
Granted: 1984-06-19
•
Expires: 2002-09-07
Abstract
Abstract A method of manufacturing liquid crystal display element by a multi-element process is disclosed. Two substrates of plastic film provided with electrodes in individual element sections are put together such that the electrodes on these plastic films are in register with one another, liquid crystal is sealed in a space between the substrates which is defined in respect of the individual element sections by a seal member in the form of a closed configuration and the substrates are cut to obtain individual liquid crystal display elements separated from one another. One of the substrates is formed with cuts in the neighborhood of the outer wall of the seal members before putting together the substrates.
Inventors
- 👤 Ken Sasaki
- 👤 Sigeru Matsuyama
- 👤 Tsunehiro Yoshino
- 👤 Katuhiro Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133351; G02F1/133305; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A method of manufacturing liquid crystal display elements by a multi-element manufacturing process comprising the steps of putting together two substrates of plastic film provided with electrodes in individual element sections such that the electrodes on these plastic films are in register with one another, sealing liquid crystal in a space between the substrates which is defined in respect of the individual element sections by seal members in the form of a closed configuration, and cutting said substrates to obtain individual liquid crystal display elements separated from one another, wherein one of said substrates is formed with cuts which penetrate the substrate through its thickness in the neighborhood of the outer wall of said seal members before bringing said substrates together for bonding.
Claim 2
Independent Claim
123 words
A method of manufacturing liquid crystal display elements by a multi-element manufacturing process comprising the steps of putting together two substrates of plastic film provided with electrodes in individual element sections such that the electrodes on these plastic films are in register with one another, sealing liquid crystal in a space between the substrates which is defined in respect of the individual element sections by seal members in the form of a closed configuration, and cutting said substrates to obtain individual liquid crystal display elements separated from one another, wherein one of said substrates is formed with cuts which penetrate the substrate through its thickness in the neighborhood of the outer wall of said seal members before bringing said substrates together for bonding.
Claim 3
Dependent Claim
22 words
The method according to claim 1, wherein said two substrates are put together by feeding said substrates in synchronism to one another.
Claim 4
Dependent Claim
24 words
The method according to claim 1, wherein said cuts form windows having a predetermined width from the outer wall of said respective seal members.
Claim 5
Dependent Claim
21 words
The method according to claim 3, wherein said predetermined width is substantially equal to the length of exposed electrode lead portions.
Claim 6
Dependent Claim
20 words
The method according to claim 3, wherein said predetermined width is less than the length of exposed electrode lead portions.
Claim 7
Dependent Claim
22 words
The method according to claim 1, wherein said cuts are cutting lines extending along the outer wall of said respective seal members.
Claim 8
Dependent Claim
49 words
The method according to claim 1, wherein said seal members are each rectangular in shape, and said cuts are each formed on the outer side of the outer wall of the side of each said seal member where exposed electrode lead portions are found on the other said substrate.
Claim 9
Dependent Claim
62 words
The method according to claim 1, wherein said seal members are each rectangular in shape, and said cits are each formed on the outer side of the outer walls of the side of each said seal member where exposed electrode lead portions are found on the other said substrate and also on the opposite periphery outer side of each said seal member.
References Cited (Backward Citations)
US3751137A
Cited
JPS5222895A
Cited
JPS5428172A
Cited
US4224093A
Cited
JPS554033A
Cited
JPS5672417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |