Patent US4549928A successfully refreshed from Google Patents.
US4549928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television panel and method of manufacture
Assignee: Corning Glass Works
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Filing: 1982-09-29
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Granted: 1985-10-29
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Expires: 2002-09-29
Abstract
Abstract A collector printing process is utilized for applying thermoplastic pressure-sensitive inks, corresponding to the color TV phosphors and the black matrix, onto the inner face of the TV panel. Separate inks, formed of inorganic pigments and a thermoplastic pressure-sensitive medium, are each separately patterned. The separate inks are then printed in registration onto a collector to form a composite pattern. Upon completion, the composite pattern is completely transferred to the TV panel by contact of the collector against the inner panel face to form the target.
Inventors
- 👤 Wendell S. Blanding
- 👤 Ronald E. Johnson
- 👤 Robert V. VanDewoestine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:58
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/003; H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; H01J9/142; H01J9/144; H01J9/20; H01J9/22; H01J9/227; H01J9/2277; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A method of producing a target for a color TV panel, the target formed of a composite pattern of a black matrix and respective red, blue and green color phosphors comprising the steps of: formulating a separate composition of thermoplastic, pressure-sensitive ink for each of the black matrix and color phosphors, said inks exhibiting cohesive strength and pressure sensitivity at near room temperature; forming each composition into a corresponding separate pattern; establishing the black matrix and respective color phosphors in the separate patterns on separate surfaces; completely transferring and registrably combining the separate patterns into the composite pattern onto at least one collector; and completely transferring the composite pattern from the collector to the panel to form the target thereon.
Claim 2
Independent Claim
120 words
A method of producing a target for a color TV panel, the target formed of a composite pattern of a black matrix and respective red, blue and green color phosphors comprising the steps of: formulating a separate composition of thermoplastic, pressure-sensitive ink for each of the black matrix and color phosphors, said inks exhibiting cohesive strength and pressure sensitivity at near room temperature; forming each composition into a corresponding separate pattern; establishing the black matrix and respective color phosphors in the separate patterns on separate surfaces; completely transferring and registrably combining the separate patterns into the composite pattern onto at least one collector; and completely transferring the composite pattern from the collector to the panel to form the target thereon.
Claim 3
Dependent Claim
59 words
A method as set forth in claim 1 wherein establishing the separate patterns on separate surfaces comprises the steps of: melting the thermoplastic inks; depositing each melted ink on a separate corresponding heated ink-carrying surface; and contacting each ink-carrying surface with a separate corresponding relatively cool transfer surface, and splitting each ink between the ink-carrying surface and transfer surface.
Claim 4
Dependent Claim
51 words
A method as set forth in claim 2 wherein establishing the separate patterns further comprises the steps of: establishing patterns corresponding to each separate ink pattern for each of the black matrix and each color phosphor on at least a corresponding one of the separate ink-carrying surface and the transfer surface.
Claim 5
Dependent Claim
38 words
A method as set forth in claim 2 wherein establishing the patterns comprises at least one of the steps of: producing a gravure etching in the ink-carrying surface and producing a raised flexographic pattern in the transfer surface.
Claim 6
Dependent Claim
32 words
A method as set forth in claim 2 further comprising the steps of: establishing affinity of the ink for the transfer surface, the collector and the panel in order of increasing affinity.
Claim 7
Dependent Claim
40 words
A method as set forth in claim 5 wherein registrably combining the separate patterns comprises the steps of: sequentially contacting each separate transfer surface with the collector in intimate mechanical contact, whereby the separate inks adhere preferentially to the collector.
Claim 8
Dependent Claim
31 words
A method as set forth in claim 1 wherein formulating the inks comprises the steps of combining separate inorganic pigments for each color and the black matrix in a hot melt,
Claim 9
Dependent Claim
54 words
A method as set forth in claim 7 further comprising the steps of: depositing an organic layer and conductive reflective film over the target after it has been transferred to the panel, and firing the panel at a sufficient temperature for volatilizing organic compounds present to thereby permanently affix the target onto the panel.
Claim 10
Independent Claim
89 words
A method of producing a target for a color TV panel formed of separate patterns corresponding to a background matrix and respective color, phosphors comprising the steps of: establishing separate thermoplastic ink patterns of each of the background matrix and color phosphors onto separate surfaces, collecting the separate patterns in registration onto a common surface as a composite pattern; and transferring the entire composite pattern onto the panel by intimate contact of the common surface and the panel in a single pass for forming the target on the panel.
Claim 11
Independent Claim
89 words
A method of producing a target for a color TV panel formed of separate patterns corresponding to a background matrix and respective color, phosphors comprising the steps of: establishing separate thermoplastic ink patterns of each of the background matrix and color phosphors onto separate surfaces, collecting the separate patterns in registration onto a common surface as a composite pattern; and transferring the entire composite pattern onto the panel by intimate contact of the common surface and the panel in a single pass for forming the target on the panel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |