Patent US4653864A successfully refreshed from Google Patents.
US4653864A
Expired / Lapsed
US
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Liquid crystal matrix display having improved spacers and method of making same
Assignee: Guardian Industries Corp
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Filing: 1986-02-26
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Granted: 1987-03-31
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Expires: 2006-02-26
Abstract
Abstract Light influencing displays and more particularly liquid crystal displays are disclosed which have a pair of light transmissive electrode supports which are uniformly spaced apart by a predetermined distance over the entire display area. The electrode supports are spaced apart by spacer means including a plurality of spacers arranged in a predetermined pattern between the electrode supports.
Inventors
- 👤 Yair Baron
- 👤 Meera Vijan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:22
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1339; G02F1/13394; G02F1/13392; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
84 words
A light influencing display comprising: a first substrate; a first plurality of pixel electrodes carried on said first substrate; a plurality of isolation devices and address lines carried on said first substrate; a second substrate; a second plurality of pixel electrodes carried by said second substrate; light influencing display material between said substrates; and spacer means for spacing said substrates apart, said spacer means being carried by said second substrate and including a plurality of discrete bodies of material arranged in a predetermined pattern.
Claim 2
Dependent Claim
84 words
A light influencing display comprising: a first substrate; a first plurality of pixel electrodes carried on said first substrate; a plurality of isolation devices and address lines carried on said first substrate; a second substrate; a second plurality of pixel electrodes carried by said second substrate; light influencing display material between said substrates; and spacer means for spacing said substrates apart, said spacer means being carried by said second substrate and including a plurality of discrete bodies of material arranged in a predetermined pattern.
Claim 3
Dependent Claim
19 words
A light influencing display as defined in claim 1 wherein said spacer means are formed of electrically insulating material.
Claim 4
Dependent Claim
18 words
A light influencing display as defined in claim 2 wherein said spacer means are formed of polyimide material.
Claim 5
Dependent Claim
18 words
A light influencing display as defined in claim 2 wherein said spacer means are formed of parylene material.
Claim 6
Dependent Claim
20 words
A light influencing display as defined in claim 1 wherein said light influencing display material is liquid crystal display material.
Claim 7
Dependent Claim
65 words
A light influencing display as defined in claim 1 wherein said first plurality of pixel electrodes are spaced apart on said first substrate, wherein said second plurality of pixel electrodes are spaced apart on said second substrate, and wherein said spacer means are located between the electrodes of said first plurality of pixel electrodes and between the electrodes of said second plurality of pixel electrodes.
Claim 8
Dependent Claim
21 words
A light influencing display as defined in claim 1 wherein said spacer means bodies are formed of material softer than glass.
Claim 9
Dependent Claim
40 words
A light influencing display as defined in claim 7 further including a set of address lines between said first plurality of pixel electrodes and wherein said spacer means bodies are arranged on said second substrate to overlie said address lines.
Claim 10
Dependent Claim
51 words
A light influencing display as defined in claim 1 wherein said spacer means include a first set of said bodies formed on said first substrate and a second set of said bodies formed on said second substrate, said first and second sets of bodies being aligned and disposed in abutting relation.
Claim 11
Dependent Claim
29 words
A light influencing display as defined in claim 1 further including spacer receiving means carried by said first substrate and arranged for receiving said spacer means in interlocking relation.
Claim 12
Independent Claim
97 words
A method of making a light influencing display comprising the steps of: providing first and second substrates; forming a first plurality of pixel electrodes on said first substrate; forming a plurality of isolation devices and address lines on said first substrate; forming a second plurality of pixel electrodes on said second substrate; forming a plurality of spacers on said second substrate in a predetermined pattern; securing said substrates together with said first plurality of electrodes facing said second plurality of electrodes and with said spacers between said substrates; and applying light influencing display material between said substrates.
Claim 13
Independent Claim
97 words
A method of making a light influencing display comprising the steps of: providing first and second substrates; forming a first plurality of pixel electrodes on said first substrate; forming a plurality of isolation devices and address lines on said first substrate; forming a second plurality of pixel electrodes on said second substrate; forming a plurality of spacers on said second substrate in a predetermined pattern; securing said substrates together with said first plurality of electrodes facing said second plurality of electrodes and with said spacers between said substrates; and applying light influencing display material between said substrates.
Claim 14
Dependent Claim
16 words
A method as defined in claim 11 wherein said spacers are formed of electrically insulating material.
Claim 15
Dependent Claim
15 words
A method as defined in claim 12 wherein said electrically insulating material is a polyimide.
Claim 16
Dependent Claim
14 words
A method as defined in claim 12 wherein said electrically insulating material is parylene.
Claim 17
Dependent Claim
46 words
A method as defined in claim 11 wherein said step of forming said spacers includes applying a continuous layer of spacer material over said second substrate and selectively removing area portions of said layer of spacer material to leave remaining said spacers in said predetermined pattern.
Claim 18
Dependent Claim
22 words
A method as defined in claim 15 wherein said step of removing said area portions includes etching said layer of spacer material.
Claim 19
Dependent Claim
25 words
A method as defined in claim 11 including the step of forming a plurality of said spacers on both said substrates in a predetermined pattern.
Claim 20
Dependent Claim
40 words
A method as defined in claim 17 including the step of patterning said spacers on both said substrates such that the spacers on one said substrate abut the spacers on the other said substrate when said substrates are secured together.
Claim 21
Dependent Claim
38 words
A method as defined in claim 11 including the further steps of forming a plurality of spacer receiving means on said first substrate and interlocking said spacer means with said spacer receiving means when securing said substrates together.
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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |