US5233445A
Expired / Lapsed
US
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Active matrix liquid crystal display with average dielectric constant greater than 6 and less than 1.8 meq/g cyano groups
Assignee: Tyco International Ltd Bermuda
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Filing: 1991-12-12
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Granted: 1993-08-03
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Expires: 2011-12-12
Abstract
Abstract An active matrix liquid crystal display having improved performance properties is made using an encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition having an average dielectric constant greater than about 6 and other specified characteristics.
Inventors
- 👤 Hundi P. Kamath
- 👤 Robert H. Reamey
- 👤 Mark F. Wartenberg
- 👤 Stephen S. Moore
- 👤 Philip J. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:48
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1334; C; C09; C09K; C09K19/00; C09K19/04; C09K19/42; C09K19/52; C09K19/54; C09K19/542; C09K19/544; G02F1/136; G02F1/1362
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
58 words
A liquid crystal display comprising (a) plural pixels comprising an encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which (i) contains less than 1.8 meq/g cyano groups and (ii) has an average dielectric constant ε avg greater than 6, and (b) a non-linear switching element connected in series with each pixel.
Claim 2
Dependent Claim
58 words
A liquid crystal display comprising (a) plural pixels comprising an encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which (i) contains less than 1.8 meq/g cyano groups and (ii) has an average dielectric constant ε avg greater than 6, and (b) a non-linear switching element connected in series with each pixel.
Claim 3
Dependent Claim
18 words
A liquid crystal display according to claim 1, wherein ε avg is between about 6 and about 10.
Claim 4
Dependent Claim
21 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition has an optical anisotropy Δn greater than 0.15.
Claim 5
Dependent Claim
23 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition has a threshold voltage V th less than 1.8 volt.
Claim 6
Dependent Claim
18 words
A liquid crystal display according to claim 1, wherein the non-linear switching element is a thin film transistor.
Claim 7
Dependent Claim
19 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition is substantially free of cyano groups.
Claim 8
Dependent Claim
22 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition is operationally nematic and has a positive dielectric anisotropy.
Claim 9
Dependent Claim
18 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition further comprises a pleochroic dye.
Claim 10
Dependent Claim
19 words
A liquid crystal display according to claim 1, wherein the liquid crystal composition contains more than 2.0 meq/g fluorine.
Claim 11
Dependent Claim
71 words
A liquid crystal display comprising (a) plural pixels comprising an encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which has (i) a threshold voltage V th less than 1.8 volt, (ii) an optical anisotropy Δn greater than 0.15, and (iii) an average dielectric constant ε avg between about 6 and about 10, and (b) a non-linear switching element connected in series with each pixel.
Claim 12
Dependent Claim
71 words
A liquid crystal display comprising (a) plural pixels comprising an encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which has (i) a threshold voltage V th less than 1.8 volt, (ii) an optical anisotropy Δn greater than 0.15, and (iii) an average dielectric constant ε avg between about 6 and about 10, and (b) a non-linear switching element connected in series with each pixel.
Claim 13
Dependent Claim
20 words
A liquid crystal display according to claim 10, wherein the liquid crystal composition contains less than 1.8 meq/g cyano groups.
Claim 14
Dependent Claim
19 words
A liquid crystal display according to claim 10, wherein the liquid crystal composition is substantially free of cyano groups.
Claim 15
Dependent Claim
18 words
A liquid crystal display according to claim 10, wherein the non-linear switching element is a thin film transistor.
Claim 16
Dependent Claim
16 words
A liquid crystal display according to claim 10, wherein the liquid crystal composition is operationally nematic.
Claim 17
Dependent Claim
18 words
A liquid crystal display according to claim 10, wherein the liquid crystal composition further comprises a pleochroic dye.
Claim 18
Dependent Claim
19 words
A liquid crystal display according to claim 10, wherein the liquid crystal composition contains more than 2.0 meq/g fluorine.
Claim 19
Dependent Claim
37 words
An encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which (i) contains less than 1.8 meq/g cyano groups and (ii) has an average dielectric constant ε avg greater than 6.
Claim 20
Dependent Claim
37 words
An encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which (i) contains less than 1.8 meq/g cyano groups and (ii) has an average dielectric constant ε avg greater than 6.
Claim 21
Dependent Claim
19 words
An encapsulated liquid crystal structure according to claim 17, wherein ε avg is between about 6 and about 10.
Claim 22
Dependent Claim
22 words
An encapsulated liquid crystal structure according to claim 17, wherein the liquid crystal composition has an optical anisotropy Δn greater than 0.15.
Claim 23
Dependent Claim
24 words
An encapsulated liquid crystal structure according to claim 17, wherein the liquid crystal composition has a threshold voltage V th less than 1.8 volt.
Claim 24
Dependent Claim
20 words
An encapsulated liquid crystal structure according to claim 17, wherein the liquid crystal composition is substantially free of cyano groups.
Claim 25
Dependent Claim
23 words
An encapsulated liquid crystal structure according to claim 17, wherein the liquid crystal composition is operationally nematic and has a positive dielectric anisotropy.
Claim 26
Dependent Claim
19 words
An encapsulated liquid crystal structure according to claim 17, wherein the liquid crystal composition further comprises a pleochroic dye.
Claim 27
Dependent Claim
20 words
An encapsulated liquid crystal display according to claim 17, wherein the liquid crystal composition contains more than 2.0 meq/g fluorine.
Claim 28
Dependent Claim
50 words
An encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which has (i) a threshold voltage V th less than 1.8 volt, (ii) an optical anisotropy Δn greater than 0.15, and (iii) an average dielectric constant ε avg between about 6 and about 10.
Claim 29
Dependent Claim
50 words
An encapsulated liquid crystal structure comprising a containment medium having dispersed therein a liquid crystal composition which has (i) a threshold voltage V th less than 1.8 volt, (ii) an optical anisotropy Δn greater than 0.15, and (iii) an average dielectric constant ε avg between about 6 and about 10.
Claim 30
Dependent Claim
21 words
An encapsulated liquid crystal structure according to claim 25, wherein the liquid crystal composition contains less than 1.8 meq/g cyano groups.
Claim 31
Dependent Claim
20 words
An encapsulated liquid crystal structure according to claim 25, wherein the liquid crystal composition is substantially free of cyano groups.
Claim 32
Dependent Claim
17 words
An encapsulated liquid crystal structure according to claim 25, wherein the liquid crystal composition is operationally nematic.
Claim 33
Dependent Claim
19 words
An encapsulated liquid crystal structure according to claim 25, wherein the liquid crystal composition further comprises a pleochroic dye.
Claim 34
Dependent Claim
20 words
An encapsulated liquid crystal display according to claim 25, wherein the liquid crystal composition contains more than 2.0 meq/g fluorine.
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| 3.5 Years (Year 4) | 1996-08-02 | 1997-02-01 | 1997-08-03 | $2000.00 | Window Closed / Lapsed |
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