US3834792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alignment film for a liquid crystal display cell
Assignee: NCR Voyix Corp
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Filing: 1973-08-07
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Granted: 1974-09-10
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Expires: 1993-08-07
Abstract
Abstract The present invention relates to a liquid crystal display cell having an alignment film therein. The present invention also relates to a method of aligning liquid crystal molecules in a selected direction in a liquid crystal display cell. An alignment film whose film growth is oriented in the same direction is deposited on an electrode film of a liquid crystal cell. The alignment film is used to align the molecules of a liquid crystal material. The film growth sympathetically aligns the molecules of liquid crystals in the direction of the film growth. A liquid crystal display cell which has two such alignment films therein is used to form a polarizing liquid crystal display cell.
Inventors
- 👤 J Janning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:31
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1337; G02F1/133734; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
55 words
A liquid crystal display cell the combination comprising: a. at least one supportive substrate; b. an alignment film on said supportive substrate, the film growth of the alignment film being oriented in a direction which makes an acute angle to the supporting substrate; and c. a liquid crystal material in contact with said alignment film.
Claim 2
Dependent Claim
55 words
A liquid crystal display cell the combination comprising: a. at least one supportive substrate; b. an alignment film on said supportive substrate, the film growth of the alignment film being oriented in a direction which makes an acute angle to the supporting substrate; and c. a liquid crystal material in contact with said alignment film.
Claim 3
Dependent Claim
102 words
A liquid crystal display cell, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an alignment film within the closed container on at least one of said supportive substrates, the film growth of the alignment film being oriented in a direction making an acute angle with respect to the one of said supportive substrates; and c. a selected liquid crystal material disposed within said closed container and in contact with said alignment film.
Claim 4
Dependent Claim
102 words
A liquid crystal display cell, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an alignment film within the closed container on at least one of said supportive substrates, the film growth of the alignment film being oriented in a direction making an acute angle with respect to the one of said supportive substrates; and c. a selected liquid crystal material disposed within said closed container and in contact with said alignment film.
Claim 5
Dependent Claim
115 words
A liquid crystal display cell, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film disposed on the surface of each of said first and second substrate defining inner surfaces of the closed container; c. an alignment film on at least one of said electrode films, the film growth of the alignment film making an acute angle with respect to said one of said alignment films; and d. a selected liquid crystal material disposed within said closed container in contact with the alignment films.
Claim 6
Dependent Claim
115 words
A liquid crystal display cell, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film disposed on the surface of each of said first and second substrate defining inner surfaces of the closed container; c. an alignment film on at least one of said electrode films, the film growth of the alignment film making an acute angle with respect to said one of said alignment films; and d. a selected liquid crystal material disposed within said closed container in contact with the alignment films.
Claim 7
Dependent Claim
51 words
The liquid crystal display cell of claim 3, in which an alignment film is present on both electrode films, with the direction of film growth on one of said electrode films being rotated a selected number of degrees with respect to the direction of film growth on the other electrode film.
Claim 8
Dependent Claim
24 words
The liquid crystal cell of claim 4 whereiN the direction of film growth on said one of said electrode films is rotated approximately 90*.
Claim 9
Dependent Claim
123 words
A liquid crystal display cell having a selected pattern stored therein, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film on the inner surface of each of said first and second substrates, a selected pattern being formed in the electrode film on said first substrate; c. an alignment film on each of said electrode films, the film growth of the alignment films making an acute angle with respect to the electrode films; and d. a selected liquid crystal material disposed within said closed container and in contact with the alignment films.
Claim 10
Dependent Claim
123 words
A liquid crystal display cell having a selected pattern stored therein, comprising: a. a first and second supportive substrate being oriented opposite to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film on the inner surface of each of said first and second substrates, a selected pattern being formed in the electrode film on said first substrate; c. an alignment film on each of said electrode films, the film growth of the alignment films making an acute angle with respect to the electrode films; and d. a selected liquid crystal material disposed within said closed container and in contact with the alignment films.
Claim 11
Dependent Claim
126 words
A liquid crystal display cell having a selected pattern stored therein, comprising: a. a first and second supportive substrate being oriented opposited to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film on the inner surface of each of said first and second substrates; c. an alignment film on each of said electrode films, the film growth of the alignment films making an acute angle with respect to the electrode films, a selected pattern being formed in the alignment film on the electrode film on the first substrate; and d. a selected liquid crystal material within said closed container and in contact with the alignment films.
Claim 12
Dependent Claim
126 words
A liquid crystal display cell having a selected pattern stored therein, comprising: a. a first and second supportive substrate being oriented opposited to and in near parallel relationship to one another, with a sealant making a closed path between the inner surfaces thereof, to form a closed container; b. an electrode film on the inner surface of each of said first and second substrates; c. an alignment film on each of said electrode films, the film growth of the alignment films making an acute angle with respect to the electrode films, a selected pattern being formed in the alignment film on the electrode film on the first substrate; and d. a selected liquid crystal material within said closed container and in contact with the alignment films.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |