US4633134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color fluorescent display device having anode conductors in zig-zag pattern
Assignee: Futaba Corp
•
Filing: 1984-09-18
•
Granted: 1986-12-30
•
Expires: 2004-09-18
Abstract
Abstract A color fluorescent display device capable of attaining the high densification of display and the improvement of luminance and providing display with a good tone, including a plurality of control electrodes arranged in parallel in the column direction, anode conductors arranged in zig-zags and opposite to each of the control electodes, wiring conductors each connecting the anode conductors in the same row together and phosphors of green, red and blue luminous colors respectively deposited on the anode conductors in a descending order and in a repeated manner.
Inventors
- 👤 Takao Kishino
- 👤 Tadashi Mizohata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:09
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/15
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
A color fluorescent display device having plural electrodes including at least one cathode electrode mounted in an evacuated envelope, comprising: a plurality of control electrodes arranged in parallel in a column direction opposite the cathode electrode; and segment anodes including anode conductors arranged opposite to each of said control electrodes, wherein each control electrode has the anode conductors opposite thereto arranged in zig-zags beneath the respective control electrode, wiring conductors each connecting said anode conductors in a same row together and phosphors of red, green and blue luminous colors respectively deposited on said anode conductors in a descending order and in a repeated manner every three anode conductors.
Claim 2
Dependent Claim
108 words
A color fluorescent display device having plural electrodes including at least one cathode electrode mounted in an evacuated envelope, comprising: a plurality of control electrodes arranged in parallel in a column direction opposite the cathode electrode; and segment anodes including anode conductors arranged opposite to each of said control electrodes, wherein each control electrode has the anode conductors opposite thereto arranged in zig-zags beneath the respective control electrode, wiring conductors each connecting said anode conductors in a same row together and phosphors of red, green and blue luminous colors respectively deposited on said anode conductors in a descending order and in a repeated manner every three anode conductors.
Claim 3
Dependent Claim
28 words
A color fluorescent display device as defined in claim 1, wherein the phosphors deposited on said anode conductors in the same row are of the same luminous color.
Claim 4
Dependent Claim
46 words
A color fluorescent display device as defined in claim 1, wherein the arrangement of the anode conductors in zig-zags and opposite to one control electrode is in a mirror image of to that of the anode conductors in zig-zags and opposite to the adjacent control electrodes.
Claim 5
Dependent Claim
32 words
A color fluorescent display device as defined in claim 1, wherein the anode conductors in the same row are integrally connected together at the position opposite to the respective adjacent control electrodes.
Claim 6
Dependent Claim
30 words
A color fluorescent display device as defined in claim 1, wherein said phosphors in the same row are integrally connected together at the position opposite to the respective control electrode.
Claim 7
Dependent Claim
53 words
A color fluorescent display device as defined in claim 1, wherein each three anode conductors arranged opposite to each of said control electrodes and adjacent to one another to form a triangular shape and having the phosphors of red, green and blue luminous colors respectively deposited thereon in order constitute one picture cell.
Claim 8
Dependent Claim
29 words
A color fluorescent display device as defined in claim 4, wherein said phorphors are deposited on only portions of said anode conductors opposite to each of said control electrodes.
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) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |