US5521035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for preparing color filter elements using laser induced transfer of colorants with associated liquid crystal display device
Assignee: 3M Innovative Properties Co
•
Filing: 1994-07-11
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Granted: 1996-05-28
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Expires: 2014-07-11
Abstract
Abstract Color filter elements are prepared by the laser induced thermal transfer of colorant from a color donor to a transparent, non-birefringent substrate such as glass or polymeric film. Transparent pigments which are less prone to migration, more thermally stable, and considerably more lightfast than dyes can be used to prepare the color filter elements of this invention. Color filter elements are useful for elements in color displays such as liquid crystal display devices.
Inventors
- 👤 Martin B. Wolk
- 👤 Thomas A. Isberg
- 👤 Kenneth L. Hanzalik
- 👤 Jeffrey C. Chang
- 👤 Richard E. Bills
- 👤 William V. Dower
- 👤 Terrance P. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/46; B41M5/465; B41M5/382; B41M5/38207; G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/223; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
82 words
A method for the manufacture of a color filter element on a substrate comprising thermally mass transferring a transparent pigment colorant from a thermal mass transfer colorant donor to the substrate to form a pattern of at least one color on said substrate, and then associating a liquid crystal display device with said pattern so that upon electronically addressing of liquid crystal within said liquid crystal display device, at least a portion of said pattern of at least one color becomes visible.
Claim 2
Independent Claim
82 words
A method for the manufacture of a color filter element on a substrate comprising thermally mass transferring a transparent pigment colorant from a thermal mass transfer colorant donor to the substrate to form a pattern of at least one color on said substrate, and then associating a liquid crystal display device with said pattern so that upon electronically addressing of liquid crystal within said liquid crystal display device, at least a portion of said pattern of at least one color becomes visible.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein said substrate is transparent.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein said transparent substrate is glass.
Claim 5
Dependent Claim
13 words
The method of claim 2 wherein said transparent substrate is a polymeric film.
Claim 6
Dependent Claim
12 words
The method of claim 2 wherein said substrate is non-birefringent polymeric film.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein said colorant donor further comprises binder.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein said colorant donor comprises an ionic dye.
Claim 9
Dependent Claim
13 words
The method of claim 7 wherein said colorant donor further comprises a binder.
Claim 10
Dependent Claim
12 words
The method of claim 8 wherein said binder comprises an ionic binder.
Claim 11
Dependent Claim
11 words
The method of claim 1 wherein said colorant consists of dye.
Claim 12
Dependent Claim
19 words
The method of claim 1 wherein said colorant is transferred to said substrate in square, rectangular, or triangular shapes.
Claim 13
Dependent Claim
17 words
The method of claim 1 wherein said colorant is transferred to said substrate as lines or stripes.
Claim 14
Dependent Claim
19 words
The method of claim 1 wherein at least two different colors are deposited on different areas of said substrate.
Claim 15
Dependent Claim
19 words
The method of claim 1 wherein at least three different colors are deposited on different areas of said substrate.
Claim 16
Independent Claim
118 words
A method for the manufacture of a color filter element on a substrate comprising the laser induced thermal transfer of colorant from a colorant donor to the substrate, said substrate comprising a black matrix on at least one surface of said substrate, said black matrix having window areas on portions thereof, and then thermally transferring a colorant from a colorant donor to the substrate to form a pattern of at least one color on said substrate within said matrix, and then associating a liquid crystal display device with said pattern so that upon electronically addressing of liquid crystal within said liquid crystal display device, at least a portion of said pattern of at least one color becomes visible.
Claim 17
Independent Claim
118 words
A method for the manufacture of a color filter element on a substrate comprising the laser induced thermal transfer of colorant from a colorant donor to the substrate, said substrate comprising a black matrix on at least one surface of said substrate, said black matrix having window areas on portions thereof, and then thermally transferring a colorant from a colorant donor to the substrate to form a pattern of at least one color on said substrate within said matrix, and then associating a liquid crystal display device with said pattern so that upon electronically addressing of liquid crystal within said liquid crystal display device, at least a portion of said pattern of at least one color becomes visible.
Claim 18
Dependent Claim
11 words
The method of claim 15 wherein said window areas are transparent.
Claim 19
Dependent Claim
10 words
The method of claim 15 wherein said substrate is glass.
Claim 20
Dependent Claim
12 words
The method of claim 15 wherein said substrate is a polymeric film.
Claim 21
Dependent Claim
12 words
The method of claim 15 wherein said colorant donor comprises transparent pigment.
Claim 22
Dependent Claim
12 words
The method of claim 19 wherein said colorant donor further comprises binder.
Claim 23
Dependent Claim
13 words
The method of claim 15 wherein said colorant donor comprises an ionic dye.
Claim 24
Dependent Claim
13 words
The method of claim 21 wherein said colorant donor further comprises a binder.
Claim 25
Dependent Claim
12 words
The method of claim 22 wherein said binder comprises an ionic binder.
Claim 26
Dependent Claim
11 words
The method of claim 15 wherein said colorant consists of dye.
Claim 27
Dependent Claim
19 words
The method of claim 15 wherein said colorant is transferred to said substrate in square, rectangular, or triangular shapes.
Claim 28
Dependent Claim
17 words
The method of claim 15 wherein said colorant is transferred to said substrate as lines or stripes.
Claim 29
Dependent Claim
19 words
The method of claim 15 wherein at least two different colors are deposited on different areas of said substrate.
Claim 30
Dependent Claim
19 words
The method of claim 15 wherein at least three different colors are deposited on different areas of said substrate.
Claim 31
Independent Claim
73 words
A method for the manufacture of a color filter element on a non-birefringent substrate comprising the steps of: a) laser induced thermal transfer of black colorant from a colorant donor to the substrate to form a black matrix on said substrate, said black matrix having window areas on portions thereof, and b) laser induced thermal transfer of colorant to the substrate where colorant is deposited to cover window areas of said black matrix.
Claim 32
Independent Claim
73 words
A method for the manufacture of a color filter element on a non-birefringent substrate comprising the steps of: a) laser induced thermal transfer of black colorant from a colorant donor to the substrate to form a black matrix on said substrate, said black matrix having window areas on portions thereof, and b) laser induced thermal transfer of colorant to the substrate where colorant is deposited to cover window areas of said black matrix.
Claim 33
Dependent Claim
13 words
The method of claim 29 wherein the colorant comprises transparent pigment and binder.
Claim 34
Dependent Claim
19 words
The method of claim 29 wherein the windows of said black matrix are square, rectangular, or triangular in shape.
Claim 35
Dependent Claim
13 words
The method of claim 29 wherein the substrate is a transparent polymeric film.
Claim 36
Dependent Claim
10 words
The method of claim 29 wherein the substrate is glass.
Claim 37
Dependent Claim
19 words
The method of claim 29 wherein at least two different colors are deposited on different areas of said substrate.
Claim 38
Independent Claim
52 words
A method for the manufacture of a color filter element on a substrate comprising thermally mass transferring a transparent pigment colorant from a colorant donor element to the substrate to form a pattern of at least one color on said substrate, and then associating a transparent electrically conducting layer with said pattern.
Claim 39
Independent Claim
52 words
A method for the manufacture of a color filter element on a substrate comprising thermally mass transferring a transparent pigment colorant from a colorant donor element to the substrate to form a pattern of at least one color on said substrate, and then associating a transparent electrically conducting layer with said pattern.
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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) | 1999-05-28 | 1999-11-27 | 2000-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-28 | 2003-11-27 | 2004-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-28 | 2007-11-27 | 2008-05-28 | $7700.00 | Window Closed / Lapsed |