Patent US4772096A successfully refreshed from Google Patents.
US4772096A
Expired / Lapsed
US
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Light-shader
Assignee: Nissan Motor Co Ltd
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Filing: 1985-08-23
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Granted: 1988-09-20
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Expires: 2005-08-23
Abstract
Abstract An inventive light-shader can prevent reduction of contrast ratio of views in a display, generation of moires and devastion of images in the views. The light-shader is made up of a light-shading film and a light-transmissive substrate plate. The film includes a plurality of opaque walls standing along its thickness and defining corresponding light-transmissive cells. The light-transmissive substrate plate has one surface attached to one surface of the film and the other surface microscopically rugged. The light-shader is applicable to automotive television sets, computer displays, indicative plates of various meters of automotive vehicles, ships and airplanes, and the like.
Inventors
- 👤 Yasuaki Kai
- 👤 Takatoshi Sagawa
- 👤 Hiroshi Tabata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:11
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G02; G02B; G02B5/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
105 words
A light-shader, comprising: a light-shading film including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding micro-openings; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said first light-transmissive substrate plate being remote from said light-shading film and microscopically rugged; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film.
Claim 2
Dependent Claim
105 words
A light-shader, comprising: a light-shading film including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding micro-openings; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said first light-transmissive substrate plate being remote from said light-shading film and microscopically rugged; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film.
Claim 3
Dependent Claim
27 words
A light-shader as recited in claim 1, further comprising: an opposite surface of said second light-transmissive substrate plate being remote from said light-shading film and microscopically rugged.
Claim 4
Dependent Claim
89 words
A light-shader as recited in claim 2, wherein the relative glossiness of said opposite surface of said first light-transmissive substrate plate is from 45 to 73% and the center line average height of said opposite surface of said first light-transmissive substrate plate is between 0.2 to 0.5 μm and wherein the relative glossiness of said opposite surface of said second light-transmissive substrate plate is from 48 to 100% and the center line average height of said opposite surface of said second light-transmissive substrate plate is 0.05 to 0.4 μm.
Claim 5
Dependent Claim
29 words
A light-shader as recited in claim 3, wherein the 60-degree-specular glossiness of both said opposite surfaces of said first- and second light-transmissive substrate plate is from 50 to 110%.
Claim 6
Dependent Claim
75 words
A light-shader as recited in claim 2, further comprising: a translucent color-pigment layer formed on the one surface of said second light-transmissive substrate plate; an indicative layer formed on a surface of said translucent color-pigment layer opposed to the other surface of said light-shading film; and an opposite surface of said second light-transmissive substrate plate being remote from said light-shading film and more microscopically rugged than said opposite surface of said first light-transmissive substrate plate.
Claim 7
Dependent Claim
19 words
A light-shader as recited in claim 5, wherein said translucent color-pigment layer is made of a printed fluorescent ink.
Claim 8
Dependent Claim
32 words
A light-shader as recited in claim 6, further comprising: a second indicative layer disposed between the one surface of said light-shading film and the one surface of said first light-transmissive substrate plate.
Claim 9
Dependent Claim
31 words
A light-shader as recited in claim 1, further comprising: an indicative layer disposed between the one surface of said first light-shading film and the one surface of said light-transmissive substrate plate.
Claim 10
Dependent Claim
39 words
A light-shader as recited in claim 1, wherein said first light-transmissive substrate plate is made of an achromatic transparent material with a transmissivity and reflectivity being essentially equal over the wavelengths of 400 to 700 nm of visible light.
Claim 11
Dependent Claim
14 words
A light-shader as recited in claim 9, wherein the achromatic transparent material is polycarbonate.
Claim 12
Dependent Claim
13 words
A light-shader as recited in claim 9, wherein the transmissivity is about 70%.
Claim 13
Dependent Claim
21 words
A light-shader as recited in claim 1, wherein the transmissivity of said second light-transmissive substrate plate is from 50 to 85%.
Claim 14
Dependent Claim
48 words
A light-shader as recited in claim 1, wherein the relative glossiness of said opposite surface of said first light-transmissive substrate plate is from 45 to 73% and the center line average height of said opposite surface of said first light-transmissive substrate plate is from 0.2 to 0.5 μm.
Claim 15
Dependent Claim
26 words
A light-shader as recited in claim 13, wherein the 60-degree-specular glossiness of said opposite surface of said first light-transmissive substrate plate is from 40 to 120%.
Claim 16
Dependent Claim
82 words
A light-shader as recited in claim 1, further comprising: an indicative layer disposed between the one surface of said light-shading film and the one surface of said first light-transmissive substrate plate; and a translucent color-pigment layer disposed between the one surface of said second light-transmissive substrate plate and the other surface of said light-shading film; and wherein said first light-transmissive substrate plate is made of a tint translucent material and said second light-transmissive substrate plate is made of an achromatic transparent material.
Claim 17
Dependent Claim
38 words
A light-shader as recited in claim 14, further comprising: an opposite surface of said second light-transmissive substrate plate being remote from said light-shading film and more microscopically rugged than said opposite surface of said first light-transmissive substrate plate.
Claim 18
Dependent Claim
27 words
A light-shader as recited in claim 16, further comprising: a microscopically rugged surface of said light-transmissive color-pigment layer opposed to the other surface of said light-shading film.
Claim 19
Dependent Claim
124 words
A light-shading system, comprising: a light-shading film covering a view in a display and including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding micro-openings; a first light-transmissive substrate plate having one surface in contact with a surface of said light-shading film remote from the view; an opposite surface of said light-transmissive substrate plate being remote from said light-shading film and microscopically rugged, said opposite surface being exposed to incident light; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film.
Claim 20
Dependent Claim
124 words
A light-shading system, comprising: a light-shading film covering a view in a display and including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding micro-openings; a first light-transmissive substrate plate having one surface in contact with a surface of said light-shading film remote from the view; an opposite surface of said light-transmissive substrate plate being remote from said light-shading film and microscopically rugged, said opposite surface being exposed to incident light; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film.
Claim 21
Dependent Claim
145 words
A light-shading system, comprising: a light-shading film including a plurality of opaque walls standing along the thickness thereof, the opaque walls defining corresponding hollow cells; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said light-transmissive substrate plate being remote from said light-shading film and microscopically rugged, said opposite surface being exposed to incident light; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film and the other surface exposed to radiant light from a light source; means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film; and an indicative layer disposed between the one surface of said light-shading film and the one surface of said first light-transmissive substrate plate.
Claim 22
Dependent Claim
145 words
A light-shading system, comprising: a light-shading film including a plurality of opaque walls standing along the thickness thereof, the opaque walls defining corresponding hollow cells; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said light-transmissive substrate plate being remote from said light-shading film and microscopically rugged, said opposite surface being exposed to incident light; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film and the other surface exposed to radiant light from a light source; means for sealing said light-shading film between said first and second light-transmissive substrate, said sealing means being disposed around the edge of said light-shading film; and an indicative layer disposed between the one surface of said light-shading film and the one surface of said first light-transmissive substrate plate.
Claim 23
Dependent Claim
140 words
A light-shader, comprising: a light-shading film made from a liquid hydrophilic photosensitive resin and including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding hollow cells; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said first light-transmissive substrate plate being remote from said light-shading film and microscopically rugged; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and a pressure adhesive double coated tape for sealing said light-shading film between said first and second light-transmissive substrates, said tape being disposed around the edge of said light-shading film and attached to the one surface of said first light-transmissive substrate plate and the one surface of said second light-transmissive substrate plate.
Claim 24
Dependent Claim
140 words
A light-shader, comprising: a light-shading film made from a liquid hydrophilic photosensitive resin and including a plurality of opaque walls standing along the thickness of said light-shading film, the opaque walls defining corresponding hollow cells; a first light-transmissive substrate plate having one surface in contact with one surface of said light-shading film; an opposite surface of said first light-transmissive substrate plate being remote from said light-shading film and microscopically rugged; a second light-transmissive substrate plate having one surface in contact with the other surface of said light-shading film; and a pressure adhesive double coated tape for sealing said light-shading film between said first and second light-transmissive substrates, said tape being disposed around the edge of said light-shading film and attached to the one surface of said first light-transmissive substrate plate and the one surface of said second light-transmissive substrate plate.
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) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |