US4713579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dot matrix luminous display
Assignee: Takiron Co Ltd
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Filing: 1985-11-12
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Granted: 1987-12-15
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Expires: 2005-11-12
Abstract
Abstract A dot matrix type luminous display in which flaws such as strains are substantially eliminated during the manufacturing process. A display board bearing light-emitting elements is covered by a flexible member having through-holes formed at locations corresponding to the light-emitting elements. These through-holes, which are filled with a heat-resistant, translucent resin, are offset from through-holes formed in the display board, which are used to provide electrical connections to the light-emitting elements.
Inventors
- 👤 Masanobu Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:04
CPC Classifications
H; H10; H10W; H10W90/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
150 words
A dot matrix luminous display comprising: a dot matrix display board having a rigid insulating plate; first and second sets of electrodes provided on respective opposite surfaces of said insulating plate; a plurality of light emitting-elements on one surface of said plate and a plurality of through-holes in said plate through which said light emitting-elements are electrically coupled between said electrodes of said first and second sets, respectively; and a rubber elastic member which is flexible relative to said dot matrix display board, said rubber elastic member being provided over said one surface of said dot matrix display board, said rubber elastic member having a plurality of through-holes formed therein at locations corresponding to locations of said light-emitting elements, said through-holes in said member being filled with a thermosetting resin, wherein contraction of said thermosetting resin resulting from hardening of said thermosetting resin is absorbed by said rubber elastic member.
Claim 2
Dependent Claim
150 words
A dot matrix luminous display comprising: a dot matrix display board having a rigid insulating plate; first and second sets of electrodes provided on respective opposite surfaces of said insulating plate; a plurality of light emitting-elements on one surface of said plate and a plurality of through-holes in said plate through which said light emitting-elements are electrically coupled between said electrodes of said first and second sets, respectively; and a rubber elastic member which is flexible relative to said dot matrix display board, said rubber elastic member being provided over said one surface of said dot matrix display board, said rubber elastic member having a plurality of through-holes formed therein at locations corresponding to locations of said light-emitting elements, said through-holes in said member being filled with a thermosetting resin, wherein contraction of said thermosetting resin resulting from hardening of said thermosetting resin is absorbed by said rubber elastic member.
Claim 3
Dependent Claim
25 words
The luminous display of claim 1, wherein said through-holes in said insulating plate and said through-holes in said elastic member are offset from each other.
Claim 4
Dependent Claim
76 words
The luminous display of claim 1, wherein said electrodes of said first and second sets intersect at said through-holes in said insulating plate; at least one of said light-emitting elements being provided at each intersection of said electrodes of said first and second sets, and each of said light-emitting elements being electrically coupled to the intersecting ones of said electrodes of said first and second sets, said through-holes in said plate being filled with a resin.
Claim 5
Dependent Claim
69 words
The luminous display of claim 1, wherein one of said sets of first and second electrodes passes through said through-holes in said plate so as to electrically contact said light emitting elements on said one surface of said insulating plate where said light emitting elements and the other one of said sets of first and second electrodes are provided, said through-holes in said plate being filled with a resin.
Claim 6
Dependent Claim
26 words
The luminous display of claim 1, wherein said elastic member is made from a material selected from the group consisting of silicon rubber and neoprene rubber.
Claim 7
Dependent Claim
17 words
The luminous display of claim 1, wherein said elastic member is made of a heat resistant material.
Claim 8
Dependent Claim
19 words
The luminous display of claim 1, wherein said through-holes in said elastic member are filled with a translucent resin.
Claim 9
Dependent Claim
13 words
The luminous display of claim 4, wherein said resin is a thermosetting resin.
Claim 10
Dependent Claim
16 words
The luminous display of claim 1, wherein said insulating plate is a glass epoxy laminated plate.
Claim 11
Dependent Claim
16 words
The luminous display of claim 1, wherein said insulating plate is a paper phenol laminated plate.
Claim 12
Dependent Claim
21 words
The luminous display of claim 1, wherein inner walls of said through-holes in said elastic member are of a reflective color.
Claim 13
Dependent Claim
16 words
The luminous display of claim 3, wherein said insulating plate is a glass epoxy laminated plate.
Claim 14
Dependent Claim
16 words
The luminous display of claim 3, wherein said insulating plate is a paper phenol laminated plate.
Claim 15
Dependent Claim
16 words
The luminous display of claim 4, wherein said insulating plate is a glass epoxy laminated plate.
Claim 16
Dependent Claim
16 words
The luminous display of claim 4, wherein said insulating plate is a paper phenol laminated plate.
Claim 17
Dependent Claim
13 words
The luminous display of claim 3, wherein said resin is a thermosetting resin.
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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) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |