GB1455195A - Light-emitting display device and a method of manufacturing the same - Google Patents
Light-emitting display device and a method of manufacturing the sameInfo
- Publication number
- GB1455195A GB1455195A GB243374A GB243374A GB1455195A GB 1455195 A GB1455195 A GB 1455195A GB 243374 A GB243374 A GB 243374A GB 243374 A GB243374 A GB 243374A GB 1455195 A GB1455195 A GB 1455195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- leds
- jan
- substrate
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
-
- H10W90/00—
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
1455195 Alpha-numeric displays TOKYO SHIBAURA ELECTRIC CO Ltd 18 Jan 1974 [22 Jan 1973 31 Jan 1973 (2)] 02433/74 Addition to 1440274 Heading G5C [Also in Division H1] A display device comprises an array of LEDs 19 on a substrate 11 with the junctions 17 perpendicular to the substrate, the faces 19a, 19b of the diodes parallel to the junctions being coated with light reflecting material 22, 23 to increase optical efficiency. GaP LEDs include heavily doped regions 20, 21 covering all or part of the faces 19a, 19b. The LEDs are bonded with adhesive 18 to the substrate on which conductive patterns 24, 25 are printed. The electrodes are connected via the layers 22, 23 to the patterns by solder 26, 27. Layers 22, 23 may be of Au alloys, e.g. containing 1-2% Si and 0À3-1% Be respectively. Other materials may be Au-Zn alloy, Ag, Al, Ni or Pt. The layers may be of different colours or have different shaped holes to distinguish the P and N regions. The outer surface of the layers may be undulating. The device may include a plurality of figure-of-eight arrays of LEDs. A housing which may be coloured extends over the arrays.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1973003025U JPS5310862Y2 (en) | 1972-12-28 | 1972-12-28 | |
| JP854673A JPS5025194A (en) | 1973-01-22 | 1973-01-22 | |
| JP1973012801U JPS5149890Y2 (en) | 1973-01-31 | 1973-01-31 | |
| JP1184373A JPS49100987A (en) | 1973-01-31 | 1973-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1455195A true GB1455195A (en) | 1976-11-10 |
Family
ID=34317564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB243374A Expired GB1455195A (en) | 1972-12-28 | 1974-01-18 | Light-emitting display device and a method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1455195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239518A3 (en) * | 2001-03-07 | 2006-10-04 | Matsushita Electric Industrial Co., Ltd. | Light-emitting device |
-
1974
- 1974-01-18 GB GB243374A patent/GB1455195A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239518A3 (en) * | 2001-03-07 | 2006-10-04 | Matsushita Electric Industrial Co., Ltd. | Light-emitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCNP | Patent ceased through non-payment of renewal fee |