FR2521753A1 - Seven-segment LED display esp. for electronic clock - has additional point diodes at corners of display to improve readability - Google Patents
Seven-segment LED display esp. for electronic clock - has additional point diodes at corners of display to improve readability Download PDFInfo
- Publication number
- FR2521753A1 FR2521753A1 FR8202831A FR8202831A FR2521753A1 FR 2521753 A1 FR2521753 A1 FR 2521753A1 FR 8202831 A FR8202831 A FR 8202831A FR 8202831 A FR8202831 A FR 8202831A FR 2521753 A1 FR2521753 A1 FR 2521753A1
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- FR
- France
- Prior art keywords
- diodes
- corners
- display
- segments
- esp
- 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.)
- Withdrawn
Links
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
La presente invention concerne un affichage numérique composé par des diodes électroluminescentes pouvant être utilisé notamment quoique non exclusivement pour l'affichage de l'heure dans des horloges de grandes dimensions. The present invention relates to a digital display composed by light-emitting diodes which can be used in particular although not exclusively for displaying the time in large clocks.
On utilise actuellement des affichages a diodes électroluminescentes, les chiffres sont formés par sept segments. Les sept segments éclairés forment un huit, on compose les chiffres de zéro à neuf en éclairant et en éteignant certains segments. Chaque segment se compose généralement d'une rangée de diodes ce qui ne permet pas une bonne lisibilité à une distance supérieure à trente mètres. Currently using LED displays, the numbers are formed by seven segments. The seven illuminated segments form an eight, the digits from zero to nine are composed by lighting up and switching off certain segments. Each segment generally consists of a row of diodes which does not allow good readability at a distance greater than thirty meters.
Dans le cas où le segment se compose de deux rangées de diodes afin d'avoir une meilleure lisibilité, ce segment va avoir une structure rectangulaire ce qui complique les problèmes d'emboitage et de juxtaposition des segments dans le but d'obtenir un affichage numérique. In the case where the segment consists of two rows of diodes in order to have better readability, this segment will have a rectangular structure which complicates the problems of fitting and juxtaposition of the segments in order to obtain a digital display. .
La présente invention s'inspire de cette technique pour réaliser un produit nouveau destiné notamnent à la réalisation d'horloge numérique de grandes dimensions. The present invention is inspired by this technique to produce a new product intended in particular for the production of large digital clock.
La particularité de cet affichage permet de composer des chiffres de grandes dimensions par deux rangées de diodes par segment pour avoir une lisibilité à une distance supérieure à trente mètres. The particularity of this display makes it possible to compose large digits by two rows of diodes per segment to have readability at a distance greater than thirty meters.
Pour faciliter la lecture et réduire le nombre de diodes, nous disposons une diode à chaque extrémité des segments, au total six diodes pour un affichage numérique et chacune de ces diodes sera commune à deux ou trois segments. Elles permettent d'avoir des extrémités de segments toujours à la même hauteur et à la même distance l'une par rapport aux autres. To facilitate reading and reduce the number of diodes, we have a diode at each end of the segments, a total of six diodes for a digital display and each of these diodes will be common to two or three segments. They make it possible to have segment ends always at the same height and at the same distance from one another.
Pour arriver à ce résultat, un système électronique de décodage supplémentaire a te réalisé. To achieve this result, an additional electronic decoding system has been implemented.
L'invention sera mieux comprise à la lecture de la description qui va suivre et en se référant aux dessins annexés. The invention will be better understood on reading the description which follows and with reference to the accompanying drawings.
Figure 1 : dessin de l'affichage numérique
Figure 2 : schéma synoptique
A titre d'exemple, la figure i représente un affichage numérique sept segments, les diodes allumées forment le chiffre 2.Figure 1: drawing of the digital display
Figure 2: block diagram
By way of example, FIG. I represents a seven-segment digital display, the lit diodes form the number 2.
La figure 1 montre l'affichage numérique avec sa double rangée de diodes par segments et les diodes 1, 2, 3, 4, 5, 6 disposées aux extrtiités et chacune de ces diodes dites d'extrémité est commune a chaque ensemble de segments adjacents. Figure 1 shows the digital display with its double row of diodes per segment and the diodes 1, 2, 3, 4, 5, 6 arranged at the ends and each of these so-called end diodes is common to each set of adjacent segments .
Ainsi : la diode 1 est commune aux segments A et B
Ia diode 2 est commune aux segments B, C et G
la diode 3 est commune aux segments C et D
la diode 4 est commune aux segments D et E
la diode 5 est commune aux segments E, F et 6
la diode 6 est commune aux segments A et. F
La distance entre le centre de la diode I et le centre de la diode 2 est la mime que celle entre le centre de la diode 2 et celui de la diode 3, et cela pour chaque segment. Ce qui permet un emboitage des segments plus facile en rendant commune ces diodes dites d'extrémité a deux ou trois segments.Thus: diode 1 is common to segments A and B
Diode 2 is common to segments B, C and G
diode 3 is common to segments C and D
diode 4 is common to segments D and E
diode 5 is common to segments E, F and 6
diode 6 is common to segments A and. F
The distance between the center of diode I and the center of diode 2 is the same as that between the center of diode 2 and that of diode 3, and this for each segment. This allows an easier fitting of the segments by making these so-called end diodes common to two or three segments.
Comme le montre la figure 1, nous réalisons un décodage électronique spécial supplémentaire pour les diodes électroluminescentes 1, 2, 3, 4, 5, 6 tout en conservant le décodage classique sept segments pour les segments A, B, C, D, E, F, G
Par exemple, la diode i doit s'éclairer lorsque le segment
A est éclairé ou lorsque le segment B est éclairé. As shown in figure 1, we carry out an additional special electronic decoding for the light-emitting diodes 1, 2, 3, 4, 5, 6 while preserving the classic decoding seven segments for the segments A, B, C, D, E, F, G
For example, diode i should light up when the segment
A is lit or when segment B is lit.
Le décodage de la diode 1 sera donc réalisé a partir d'une porte logique "ou" entre A et B. The decoding of the diode 1 will therefore be carried out from a logic gate "or" between A and B.
Le même principe sera appliqué aux cinq autres diodes qui permettent de réaliser l'ensemble du décodage des six diodes d'extrémité représenté figure 2. The same principle will be applied to the other five diodes which allow all of the decoding of the six end diodes shown in FIG. 2 to be carried out.
La présente invention s'applique plus particulièrement mais non exclusivement aux horloges à affichage numérique. The present invention applies more particularly but not exclusively to clocks with digital display.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8202831A FR2521753A1 (en) | 1982-02-17 | 1982-02-17 | Seven-segment LED display esp. for electronic clock - has additional point diodes at corners of display to improve readability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8202831A FR2521753A1 (en) | 1982-02-17 | 1982-02-17 | Seven-segment LED display esp. for electronic clock - has additional point diodes at corners of display to improve readability |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2521753A1 true FR2521753A1 (en) | 1983-08-19 |
Family
ID=9271192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8202831A Withdrawn FR2521753A1 (en) | 1982-02-17 | 1982-02-17 | Seven-segment LED display esp. for electronic clock - has additional point diodes at corners of display to improve readability |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2521753A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008870A (en) * | 1988-06-28 | 1991-04-16 | Vessa James R | FIFO clock |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2298836A1 (en) * | 1975-01-24 | 1976-08-20 | Bizerba Werke Kraut Kg Wilh | Electronic seven segment display with checking system - uses seven double segments with parallel drive converters connected to comparator |
US4086514A (en) * | 1975-09-15 | 1978-04-25 | Karel Havel | Variable color display device |
-
1982
- 1982-02-17 FR FR8202831A patent/FR2521753A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2298836A1 (en) * | 1975-01-24 | 1976-08-20 | Bizerba Werke Kraut Kg Wilh | Electronic seven segment display with checking system - uses seven double segments with parallel drive converters connected to comparator |
US4086514A (en) * | 1975-09-15 | 1978-04-25 | Karel Havel | Variable color display device |
Non-Patent Citations (1)
Title |
---|
ELECTRONICS, vol. 49, no. 12, 10 juin 1976, pages 129-130, New York (USA); * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008870A (en) * | 1988-06-28 | 1991-04-16 | Vessa James R | FIFO clock |
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