US5484627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing liquid crystal display device
Assignee: Samsung Display Co Ltd
•
Filing: 1993-08-24
•
Granted: 1996-01-16
•
Expires: 2013-08-24
Abstract
Abstract A method of obtaining a multi-level liquid crystal device repeatedly applies a sublimation material layer and then an insulating layer. Thereafter, the sublimation material layer is removed via heating, escaping through holes placed in the layered structure, leaving empty layered spaces into which liquid crystal can be filled.
Inventors
- 👤 In-sik Jang
- 👤 Nobuyuki Yamamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1347
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
160 words
A method of manufacturing a multi-layer portion of a liquid crystal display device into which a liquid crystal is deposited, said multi-layered portion formed over a substrate containing an electrode, over which is disposed a protective layer, comprising the steps of: depositing a sublimation material layer on said protective layer; depositing an insulation layer over said sublimation material layer; alternatingly repeating said sublimation material layer depositing step and said insulation layer depositing step to thereby obtain a layered structure containing a plurality of sublimation material layers and a plurality of insulation layers; forming a plurality of holes in said layered structure; depositing an insulating material into said plurality of holes to form a plurality of supports; forming a plurality of liquid crystal inlet holes in said layered structure where said supports are not positioned; and sublimating said plurality of sublimation material layers with heat to form spaces between said plurality of insulation layers into which a liquid crystal is deposited.
Claim 2
Independent Claim
160 words
A method of manufacturing a multi-layer portion of a liquid crystal display device into which a liquid crystal is deposited, said multi-layered portion formed over a substrate containing an electrode, over which is disposed a protective layer, comprising the steps of: depositing a sublimation material layer on said protective layer; depositing an insulation layer over said sublimation material layer; alternatingly repeating said sublimation material layer depositing step and said insulation layer depositing step to thereby obtain a layered structure containing a plurality of sublimation material layers and a plurality of insulation layers; forming a plurality of holes in said layered structure; depositing an insulating material into said plurality of holes to form a plurality of supports; forming a plurality of liquid crystal inlet holes in said layered structure where said supports are not positioned; and sublimating said plurality of sublimation material layers with heat to form spaces between said plurality of insulation layers into which a liquid crystal is deposited.
Claim 3
Dependent Claim
42 words
A multi-layer portion manufacturing method according to claim 1, wherein said sublimation material layer depositing step uses a sublimation material selected from the group consisting of 1,5-dinitronaphthalene (C 10 H 6 (NO 2 ) 2 ), fumaric acid (HOOCCH═CHCOOH) and L-glutamic acid.
Claim 4
Dependent Claim
29 words
A multi-layer portion manufacturing method according to claim 1, wherein said sublimation material layer depositing step includes forming a sublimation material layer to a thickness of about 500-5,000 Å.
Claim 5
Dependent Claim
27 words
A multi-layer portion manufacturing method according to claim 3, wherein said insulating layer depositing step includes forming an insulation layer to a thickness of about 500-5,000 Å.
Claim 6
Dependent Claim
29 words
A multi-layer portion manufacturing method according to claim 2, wherein said sublimation material layer depositing step includes forming a sublimation material layer to a thickness of about 500-5,000 Å.
Claim 7
Dependent Claim
27 words
A multi-layer portion manufacturing method according to claim 5 wherein said insulating layer depositing step includes forming an insulation layer to a thickness of about 3,000-5,000 Å.
Claim 8
Independent Claim
197 words
A method of manufacturing a liquid crystal display device comprising the steps of: forming a plurality of spaced first electrodes on a substrate; depositing a light-transmitting protective layer over said plurality of spaced first electrodes; depositing a sublimation material layer on said protective layer; depositing an insulation layer over said sublimation material layer; alternatingly repeating said sublimation material layer depositing step and said insulation layer depositing step to thereby obtain a layered structure containing a plurality of sublimation material layers and a plurality of insulation layers; forming a plurality of second electrodes over an uppermost portion of said layered structure, including a step of substantially aligning each said second electrode with a respective one of said plurality of spaced first electrodes; forming a plurality of holes in said layered structure; depositing an insulating material into said plurality of holes to form a plurality of supports; sublimating said plurality of sublimation material layers with heat to thereby form spaces between said plurality of insulation layers; filling said spaces between said plurality of insulation layers with a liquid crystal; and depositing a light-transmitting outer protective layer over at least a portion of said liquid crystal and said second electrodes.
Claim 9
Independent Claim
197 words
A method of manufacturing a liquid crystal display device comprising the steps of: forming a plurality of spaced first electrodes on a substrate; depositing a light-transmitting protective layer over said plurality of spaced first electrodes; depositing a sublimation material layer on said protective layer; depositing an insulation layer over said sublimation material layer; alternatingly repeating said sublimation material layer depositing step and said insulation layer depositing step to thereby obtain a layered structure containing a plurality of sublimation material layers and a plurality of insulation layers; forming a plurality of second electrodes over an uppermost portion of said layered structure, including a step of substantially aligning each said second electrode with a respective one of said plurality of spaced first electrodes; forming a plurality of holes in said layered structure; depositing an insulating material into said plurality of holes to form a plurality of supports; sublimating said plurality of sublimation material layers with heat to thereby form spaces between said plurality of insulation layers; filling said spaces between said plurality of insulation layers with a liquid crystal; and depositing a light-transmitting outer protective layer over at least a portion of said liquid crystal and said second electrodes.
Claim 10
Dependent Claim
55 words
A liquid crystal manufacturing method according to claim 7, further including the step of: forming a plurality of holes in said layered structure in positions other than those occupied by said plurality of supports; and heat treating said layered structure to cause said plurality of sublimation material layers to sublimate through said plurality of holes.
Claim 11
Dependent Claim
42 words
A multi-layer portion manufacturing method according to claim 8, wherein said sublimation material layer depositing step uses a sublimation material selected from the group consisting of 1,5-dinitronaphthalene (C 10 H 6 (NO 2 ) 2 ), fumaric acid (HOOCCH═CHCOOH) and L-glutamic acid.
Claim 12
Dependent Claim
29 words
A multi-layer portion manufacturing method according to claim 8, wherein said sublimation material layer depositing step includes forming a sublimation material layer to a thickness of about 500-5,000 Å.
Claim 13
Dependent Claim
27 words
A multi-layer portion manufacturing method according to claim 10 wherein said insulating layer depositing step includes forming an insulation layer to a thickness of about 3,000-5,000 Å.
Claim 14
Dependent Claim
28 words
A multi-layer portion manufacturing method according to claim 9, wherein said sublimation material depositing step includes forming a sublimation material layer to a thickness of about 500-5,000 Å.
Claim 15
Dependent Claim
27 words
A multi-layer portion manufacturing method according to claim 12, wherein said insulating layer depositing step includes forming an insulation layer to a thickness of about 3,000-5,000 Å.
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) | 1999-01-15 | 1999-07-17 | 2000-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-15 | 2003-07-17 | 2004-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-15 | 2007-07-17 | 2008-01-16 | $7700.00 | Window Closed / Lapsed |