US4851824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light emitting diode display panel
Assignee: Sharp Corp
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Filing: 1987-09-24
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Granted: 1989-07-25
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Expires: 2007-09-24
Abstract
Abstract Each of many two-color light emitting diode elements which make up a display panel includes two light emitting diode chips emitting light of different colors. These elements are so arranged in the panel that chips emitting light of the same color are adjacent to each other in the direction along which two chips in each of these elements are aligned and that chips emitting light of different colors are alternately aligned along the direction perpendicular thereto.
Inventors
- 👤 Kazuhisa Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
H; H10; H10W; H10W90/00; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/8506; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode elements each having on one stem two light emitting diode chips which emit light of different colors, said two-color light emitting diode elements being so arranged that chips emitting light of the same color are adjacent each other in the direction along which two chips in each of said elements are aligned and that chips emitting light of different colors are alternately aligned along the perpendicular direction.
Claim 2
Dependent Claim
81 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode elements each having on one stem two light emitting diode chips which emit light of different colors, said two-color light emitting diode elements being so arranged that chips emitting light of the same color are adjacent each other in the direction along which two chips in each of said elements are aligned and that chips emitting light of different colors are alternately aligned along the perpendicular direction.
Claim 3
Dependent Claim
14 words
The display panel of claim 1 wherein said different colors are red and green.
Claim 4
Dependent Claim
25 words
The display panel of claim 1 wherein said two-color light emitting diode elements are arranged in a matrix formation along said first and second directions.
Claim 5
Dependent Claim
45 words
The display panel of claim 3 wherein each pair of said chips emitting light of a same color and mutually adjacent to each other in said first direction is in two of said elements which are mutually adjacent to each other in said first direction.
Claim 6
Dependent Claim
106 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode elements arranged on a substrate in a matrix formation along mutually perpendicular first and second directions, each of said two-color light emitting diode elements having two light emitting diode chips which emit light of different colors and are aligned in said first direction with respect to each other, said two-color light emitting diode elements being so arranged that two of said chips emitting light of the same color are adjacent each other in said first direction and that those of said chips emitting different colors are alternately aligned along said second direction.
Claim 7
Dependent Claim
106 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode elements arranged on a substrate in a matrix formation along mutually perpendicular first and second directions, each of said two-color light emitting diode elements having two light emitting diode chips which emit light of different colors and are aligned in said first direction with respect to each other, said two-color light emitting diode elements being so arranged that two of said chips emitting light of the same color are adjacent each other in said first direction and that those of said chips emitting different colors are alternately aligned along said second direction.
Claim 8
Dependent Claim
37 words
The display panel of claim 5 further comprising a reflecting plate having holes, said reflecting plate covering said substrate, said holes corresponding individually to said light emitting diode elements and being filled with a transparent resin material.
Claim 9
Dependent Claim
11 words
The display panel of claim 6 wherein said holes are V-shaped.
Claim 10
Dependent Claim
91 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode chips which emit light of different colors and are aligned in a first direction with respect to each other, said two-color light emitting diode elements being so arranged that each pair of said chips mutually adjacent in said first direction and in mutually adjacent ones of said elements emits light of a same color and that each group of said chips aligned along a second direction which is perpendicular to said first direction emits alternately different colors.
Claim 11
Dependent Claim
91 words
A light emitting diode display panel comprising a plurality of two-color light emitting diode chips which emit light of different colors and are aligned in a first direction with respect to each other, said two-color light emitting diode elements being so arranged that each pair of said chips mutually adjacent in said first direction and in mutually adjacent ones of said elements emits light of a same color and that each group of said chips aligned along a second direction which is perpendicular to said first direction emits alternately different colors.
Claim 12
Dependent Claim
21 words
The display panel of claim 8 wherein said elements are arranged in a matrix form along said first and second directions.
Claim 13
Dependent Claim
14 words
The display panel of claim 8 wherein said different colors are green and red.
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |