EP0859349B1 - 7 segment display device - Google Patents
7 segment display device Download PDFInfo
- Publication number
- EP0859349B1 EP0859349B1 EP98200088A EP98200088A EP0859349B1 EP 0859349 B1 EP0859349 B1 EP 0859349B1 EP 98200088 A EP98200088 A EP 98200088A EP 98200088 A EP98200088 A EP 98200088A EP 0859349 B1 EP0859349 B1 EP 0859349B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- icons
- segments
- deactivation
- display device
- activation
- 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 - Lifetime
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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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
Description
La présente invention concerne un dispositif d'affichage d'au moins un caractère d'une fonte de type "7 segments", qui comporte des moyens d'activation/désactivation d'une ou plusieurs icônes parmi un ensemble d'icônes constituées chacune d'un ou plusieurs segments connectés électriquement.The present invention relates to a display device at least one character from a "7-segment" font, which includes means for activating / deactivating one or more icons from a set of icons each consisting of one or several electrically connected segments.
Elle concerne également un procédé d'affichage d'au moins un caractère d'une fonte de type "7 segments", qui consiste à activer/désactiver une ou plusieurs icônes parmi un ensemble d'icônes constituées chacune d'un ou plusieurs segments connectés électriquement.It also relates to a method for displaying at least minus one character from a "7 segment" type font, which consists of activate / deactivate one or more icons from a set icons each consisting of one or more connected segments electrically.
Elle concerne enfin un équipement électronique, et notamment un téléphone, comportant un tel dispositif d'affichage.Finally, it relates to electronic equipment, and in particular a telephone, comprising such a display device.
L'invention permet de réaliser de tels dispositifs d'affichage à moindre coût, et a donc d'importantes applications dans le domaine de l'électronique grand public.The invention makes it possible to produce such devices display, and therefore has important applications in the field of consumer electronics.
Le coût d'un tel dispositif d'affichage dépend essentiellement de deux paramètres: la surface de l'écran, et le nombre d'éléments (par exemple de segments ou d'icônes) à commander pour l'affichage. En effet, le nombre d'entrées/sorties et la taille de la mémoire du dispositif de commande associé à un tel dispositif d'affichage sont d'autant plus faibles que le nombre d'éléments à commander est faible.The cost of such a display device depends basically two parameters: the screen area, and the number of elements (e.g. segments or icons) to control for display. Indeed, the number of inputs / outputs and the size of the memory of the control device associated with such a device the lower the number of elements to be ordering is weak.
Une fonte classique "7 segments" a été représentée sur la figure 1. Elle comporte les chiffres 0 à 9 constitués à partir de sept segments référencés 1 à 7 qui sont disposés en forme de "8". Il est connu, notamment du brevet américain n°4,034,368 de chercher à réduire le nombre d'éléments à commander afin de diminuer le coût du dispositif d'affichage.A classic "7 segments" font has been represented on Figure 1. It includes the numbers 0 to 9 formed from seven segments referenced 1 to 7 which are arranged in the form of "8". he is known, in particular from American patent n ° 4,034,368 to seek to reduce the number of items to order in order to reduce the cost of display device.
Dans un premier mode de réalisation du dispositif décrit
dans le brevet américain n°4,034,368, et représenté sur la figure 2,
le segment central horizontal 4 est divisé en une partie supérieure
4a et une partie inférieure 4b qui sont respectivement connectées
aux segments verticaux haut et bas droits 3 et 7. Et dans un second
mode de réalisation de ce dispositif, les segments horizontaux haut
et bas 1 et 6 sont en plus connectés électriquement afin d'être
activés et désactivés simultanément.In a first embodiment of the device described
in American patent n ° 4,034,368, and represented in FIG. 2,
the horizontal central segment 4 is divided into an upper part
4a and a
Ce dispositif permet donc de réduire le nombre d'éléments à commander à 6, voire à 5 selon le mode de réalisation utilisé. Toutefois, cette réduction se fait au détriment de la qualité des caractères affichés.This device therefore makes it possible to reduce the number of elements to order at 6, or even 5 depending on the embodiment used. However, this reduction comes at the expense of quality of the characters displayed.
Dans le premier mode de réalisation, en effet, le caractère "7" est affiché dans une taille inférieure à celle des autres caractères, ce qui est gênant pour la plupart des applications. De plus, dans le second mode de réalisation, le caractère "0" ne peut pas être affiché.In the first embodiment, in fact, the character "7" is displayed in a size smaller than that of other characters, which is annoying for most applications. In addition, in the second embodiment, the character "0" cannot be displayed.
L'invention a pour but de proposer un dispositif d'affichage qui permette de réduire le nombre d'éléments à commander pour l'affichage et qui ne présente pas ces inconvénients.The object of the invention is to propose a device display which reduces the number of items to be controlled for display and which does not have these drawbacks.
Pour cela, un dispositif d'affichage selon l'invention et tel que décrit dans le paragraphe introductif est caractérisé en ce que ledit ensemble d'icônes comporte six icônes dont une icône connectant les segments verticaux haut et bas droits de ladite fonte, et cinq autres icônes, lesdites six icônes étant choisies de façon à permettre de reconstituer tous les caractères de ladite fonte avec une taille identique, par activation/désactivation sélective desdites icônes.For this, a display device according to the invention and as described in the paragraph introductory is characterized in that said set of icons comprises six icons of which an icon connecting the vertical upper and lower right segments of said font, and five other icons, said six icons being chosen so as to make it possible to reconstruct all the characters of said font with identical size, by selective activation / deactivation of said icons.
L'invention permet donc de réduire à 6 le nombre d'éléments à commander tout en assurant la restitution de chacun des caractères de la fonte.The invention therefore makes it possible to reduce to 6 the number items to order while ensuring the return of each of font characters.
En explorant de façon systématique les solutions à ce problème, la demanderesse a identifié 213 ensembles possibles. Ces 213 ensembles sont susceptibles d'être caractérisés par le fait qu'ils comportent tous une icône connectant les segments verticaux haut et bas droits de ladite fonte.By systematically exploring solutions to this problem, the Applicant has identified 213 possible sets. These 213 sets are likely to be characterized by the fact they all have an icon connecting the vertical segments top and bottom right of said font.
Selon une première variante de la présente invention, les segments qui participent à plusieurs icônes sont divisés en autant de parties que le nombre d'icônes auxquelles ils participent, et les moyens d'activation/désactivation de chacune desdites icônes commandent l'activation/la désactivation de l'une de ces parties seulement. According to a first variant of the present invention, the segments that participate in multiple icons are divided into as many games as the number of icons they participate in, and the means for activating / deactivating each of said icons control the activation / deactivation of one of these parts only.
Selon une seconde variante, le dispositif d'affichage selon l'invention comporte des diodes de protection des segments qui participent à plusieurs icônes, de telle sorte que l'activation / désactivation de l'une de ces icônes n'entraíne pas celle des autres icônes. Cette seconde variante permet de reconstituer une fonte de type « 7 segments » avec une intensité lumineuse constante.According to a second variant, the display device according to the invention comprises protection diodes of the segments which participate in several icons, so that activation / deactivation of one of these icons does not entail that of the other icons. This second variant makes it possible to reconstitute a “7-segment” type font with a constant light intensity.
Enfin, dans un mode de réalisation particulièrement avantageux de la présente invention, un segment participe à au plus deux icônes différentes. Ce mode de réalisation présente l'avantage d'être simple à mettre en oeuvre, et de fournir une meilleure qualité de restitution dans le cas où les segments sont divisés en autant de parties que le nombre d'icônes auxquelles ils participent.Finally, in a particularly embodiment advantageous of the present invention, a segment participates in at most two different icons. This embodiment has the advantage to be simple to implement, and to provide better restitution quality in the case where the segments are divided into as many games as the number of icons in which they participate.
L'invention sera mieux comprise et d'autres détails apparaítront à la lumière de la description qui va suivre en regard des dessins annexés qui sont donnés à titre d'exemples non limitatifs et dans lesquels:
- la figure 1 représente une fonte "7 segments" classique,
- la figure 2 est un schéma explicatif du fonctionnement d'un dispositif d'affichage selon l'art antérieur,
- la figure 3 représente un équipement électronique selon l'invention,
- la figure 4 représente un premier exemple d'un ensemble d'icônes selon l'invention,
- la figure 5 représente un second exemple d'un ensemble d'icônes selon l'invention,
- les figures 6 à 8 représentent trois variantes de réalisation pour l'ensemble d'icônes de la figure 4.
- FIG. 1 represents a conventional "7-segment" font,
- FIG. 2 is an explanatory diagram of the operation of a display device according to the prior art,
- FIG. 3 represents an electronic device according to the invention,
- FIG. 4 represents a first example of a set of icons according to the invention,
- FIG. 5 represents a second example of a set of icons according to the invention,
- FIGS. 6 to 8 represent three alternative embodiments for the set of icons in FIG. 4.
Sur la figure 3, on a représenté schématiquement un
téléphone 10 selon l'invention. Ce téléphone comporte un dispositif
d'affichage selon l'invention 12, un clavier 13, un écouteur 14, un
microphone 15 et une antenne 16.In Figure 3, there is shown schematically a
Le dispositif d'affichage selon l'invention permet d'afficher tous les caractères d'une fonte de type "7 segments" par activation d'une ou plusieurs icônes parmi un ensemble de six icônes. Chaque icône de cet ensemble comporte un ou plusieurs segments connectés électriquement de telle sorte qu'ils soient activés/désactivés simultanément.The display device according to the invention allows display all the characters of a "7 segment" type font by activation of one or more icons from a set of six icons. Each icon in this set has one or more electrically connected segments so that they are activated / deactivated simultaneously.
En explorant de façon systématique les solutions à ce problème, la demanderesse a identifié 213 ensembles possibles. Dans la suite de la description, elle se contentera d'exposer en détails, à titre d'exemple, deux solutions parmi ces 213.By systematically exploring solutions to this problem, the Applicant has identified 213 possible sets. In following the description, it will only set out in detail, for example, two solutions among these 213.
Sur la figure 4, on a représenté un premier exemple
d'ensemble de six icônes permettant d'afficher tous les caractères
d'une fonte de type "7 segments". Cet ensemble comporte six icônes
référencées 21 à 26. L'icône 21 contient les trois segments
horizontaux 1, 4 et 6. L'icône 22 contient les deux segments
verticaux droits 3 et 7. L'icône 23 contient le segment vertical
haut gauche 2, le segment horizontal central 4 et le segment
vertical bas droit 7. L'icône 24 contient le segment horizontal haut
1 et le segment vertical haut droit 3. L'icône 25 contient le
segment vertical bas gauche 5. Et l'icône 26 contient le segment
vertical haut gauche 2 et le segment horizontal bas 6.In FIG. 4, a first example is shown.
set of six icons to display all characters
of a "7 segments" type font. This set includes six icons
referenced 21 to 26. The
Sur la figure 5. on a représenté un second exemple
d'ensemble de six icônes permettant d'afficher tous les caractères
d'une fonte de type "7 segments". Cet ensemble comporte six icônes
référencées 31 à 36. L'icône 31 contient le segment horizontal haut
1 et le segment vertical haut droit 3. L'icône 32 contient les deux
segments verticaux droits 3 et 7. L'icône 33 contient le segment
vertical haut gauche 2 et le segment vertical bas droit 7. L'icône
34 contient le segment horizontal central 4. L'icône 35 contient les
segments horizontaux haut et bas 1 et 6. Et l'icône 36 contient le
segment vertical bas gauche 5 et le segment horizontal bas 6.In Figure 5. a second example is shown
set of six icons to display all characters
of a "7 segments" type font. This set includes six icons
referenced 31 to 36. The
On notera que les 213 ensembles identifiés par la
demanderesse peuvent tous être caractérisés par le fait qu'ils
comportent une icône contenant les segments verticaux haut et bas
droits 3 et 7 (icônes 22 et 32 sur les figures 4 et 5).Note that the 213 sets identified by the
plaintiff can all be characterized by the fact that they
have an icon containing the top and bottom
Comme cela apparaít dans les exemples des figures 4 et 5, certains segments participent à plusieurs icônes d'un même ensemble. Dans la suite de la description, et pour des raisons de simplicité de réalisation, on privilégie les ensembles dans lesquels un segment participe à au plus deux icônes différentes. As shown in the examples in Figures 4 and 5, certain segments participate in several icons of the same together. In the following description, and for reasons of simplicity of implementation, preference is given to sets in which a segment participates in at most two different icons.
Dans un premier mode de réalisation de l'invention, ces segments sont divisés en autant de parties que le nombre d'icônes auxquelles ils participent, et les moyens d'activation/désactivation de chacune desdites icônes commandent l'activation/la désactivation de l'une de ces parties seulement.In a first embodiment of the invention, these segments are divided into as many parts as the number of icons in which they participate, and the means of activation / deactivation of each of said icons control activation / deactivation from one of these parts only.
On a représenté sur la figure 6 une première variante de ce mode de réalisation, pour l'ensemble de la figure 4. Les segments qui participent à deux icônes sont constitués de deux lignes brisées intercalées. Sur la figure 6, les références de ces lignes brisées sont constituées par la référence du segment correspondant, indicée par les lettres a et b.FIG. 6 shows a first variant of this embodiment, for the whole of FIG. 4. The segments who participate in two icons consist of two broken lines interspersed. In FIG. 6, the references of these broken lines are constituted by the reference of the corresponding segment, indexed by the letters a and b.
On a représenté sur la figure 7 une seconde variante de ce mode de réalisation, pour l'ensemble de la figure 4. Les segments qui participent à deux icônes sont constitués de deux parties dentelées s'emboítant l'une dans l'autre. Sur la figure 7, les références de ces parties dentelées sont constituées par la référence du segment correspondant, indicée par les lettres a et b.FIG. 7 shows a second variant of this embodiment, for the whole of FIG. 4. The segments who participate in two icons consist of two parts serrated fitting into each other. In Figure 7, the references of these serrated parts are constituted by the reference of the corresponding segment, indicated by the letters a and b.
Dans ce premier mode de réalisation, on obtient donc une
intensité lumineuse différente selon que les deux icônes auxquelles
participe un segment sont ou non activées simultanément. A titre
d'exemple, si l'on affiche le chiffre cinq en activant les icônes 21
et 23, l'intensité lumineuse obtenue pour le segment horizontal
central 4 sera double de celle obtenue pour les autres segments. Il
est ainsi possible d'obtenir des fontes présentant une grande
variété d'apparences différentes.In this first embodiment, we therefore obtain a
different light intensity depending on whether the two icons
participates a segment are activated or not simultaneously. As
example, if we display the number five by activating the
Dans un second mode de réalisation, le dispositif d'affichage selon l'invention comporte des moyens de protection des segments qui participent à plusieurs icônes, de telle sorte que l'activation/désactivation de l'une de ces icônes n'entraíne pas celle des autres icônes. A titre d'exemple, ces moyens de protection sont constitués par une diode connectée sur chaque fils de commande arrivant à un segment qui participe à plusieurs icônes.In a second embodiment, the device display according to the invention comprises means for protecting segments that participate in multiple icons, so that activating / deactivating one of these icons does not entail that of other icons. For example, these means of protection consist of a diode connected to each control wire arriving at a segment that participates in several icons.
Sur la figure 8 on a représenté un exemple d'un tel mode
de réalisation, pour l'ensemble d'icônes 21 à 26 représenté sur la
figure 4. Les diodes portent les références 40 à 51, et les entrées
permettant de commander les six icônes 21 à 26 portent
respectivement les références C21 à C26. FIG. 8 shows an example of such a mode
of realization, for the set of
Ce mode de réalisation permet d'obtenir une intensité lumineuse constante quelque soit les chiffres affichés et les segments utilisés.This embodiment provides an intensity constant light whatever the figures displayed and the segments used.
Il est important de noter qu'en utilisant un dispositif de commande multiplexée pour commander le dispositif d'affichage selon l'invention, il est possible de réduire à 5 le nombre d'entrées/sorties nécessaires.It is important to note that when using a device of multiplexed control to control the display device according to the invention, it is possible to reduce to 5 the number inputs / outputs required.
Il va de soi que l'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits à titre d'exemple.It goes without saying that the invention is not limited to modes of embodiments which have just been described by way of example.
Les principes utilisés dans l'invention sont notamment transposables à d'autres types de fonte, par exemple à des fontes de type "14 segments" qui permettent d'afficher tous les caractères alphanumériques.The principles used in the invention are in particular transposable to other types of cast iron, for example cast iron type "14 segments" which allow to display all the characters Alphanumeric.
Claims (8)
- A display device for displaying at least a character having a font of the "7-segment" type, which comprises activation/deactivation means for activating/deactivating one or various icons from a set of icons formed each by one or various electrically connected segments, characterized in that said set of icons comprises six icons, one icon connecting the upper and lower right-hand vertical segments, and five other icons, six icons being chosen so that all the characters of said font can be restored with an identical size by selective activation/deactivation of said icons.
- A display device as claimed in claim 1, characterized in that the segments which form part of various icons are divided into as many parts as the number of icons to which they belong, and in that the activation/deactivation means of each of said icons control the activation/deactivation of one of these parts only.
- A display device as claimed in claim 2, characterized in that each of said parts is formed by a broken line, the broken lines which form a segment being interleaved relative to each other.
- A display device as claimed in claim 1, characterized in that it comprises protection diodes for protecting segments which form part of various icons, so that the activation/deactivation of one of these icons does not lead to the activation/deactivation of the other icons.
- A display device as claimed in one of the claims 1 to 4, characterized in that one segment forms part of no more than two different icons.
- A display method of displaying a character of a "7-segment" font, which comprises an activation/deactivation of one or various icons from a set of icons formed each by one or various electrically connected segments, characterized in that said set of icons comprises six icons, one icon connecting the upper and lower right-hand vertical segments, and five other icons, six icons being chosen so that all the characters of said font can be restored with an identical size by selective activation/deactivation of said icons.
- Electronic equipment comprising a display device for displaying a character of a "7-segment" font, said display device itself comprising activation/deactivation means for activating one or various icons from a set of icons formed each by one or various electrically connected segments, characterized in that said set of icons comprises six icons, one icon connecting the upper and lower right-hand vertical segments, and five other icons, six icons being chosen so that all the characters of said font can be restored with an identical size by selective activation/deactivation of said icons.
- A telephone comprising a display device for displaying a character of a "7-segment" font, said display device itself comprising activation/deactivation means for one or various icons from a set of icons formed each by one or various electrically connected segments, characterized in that said set of icons comprises six icons, one icon connecting the upper and lower right-hand vertical segments, and five other icons, six icons being chosen so that all the characters of said font can be restored with an identical size by selective activation/deactivation of said icons.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9700579 | 1997-01-21 | ||
| FR9700579 | 1997-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0859349A1 EP0859349A1 (en) | 1998-08-19 |
| EP0859349B1 true EP0859349B1 (en) | 2002-05-08 |
Family
ID=9502805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98200088A Expired - Lifetime EP0859349B1 (en) | 1997-01-21 | 1998-01-14 | 7 segment display device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5969628A (en) |
| EP (1) | EP0859349B1 (en) |
| JP (1) | JPH10274945A (en) |
| KR (1) | KR19980070652A (en) |
| CN (1) | CN1195836A (en) |
| DE (1) | DE69805227T2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6525700B1 (en) * | 1999-05-04 | 2003-02-25 | Robert Smith | Multi-segment alphanumeric display |
| US6634464B1 (en) | 2000-08-03 | 2003-10-21 | Steven Troyen | Elevator position indicator display system and method of driving the display |
| CN110570808A (en) * | 2019-08-21 | 2019-12-13 | 青岛海尔科技有限公司 | Method and device for controlling nixie tube display and display equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516300Y2 (en) * | 1975-01-27 | 1980-04-16 | ||
| GB2002160A (en) * | 1977-08-08 | 1979-02-14 | Fairchild Camera Instr Co | An alphanumeric display for displaying days of the week |
| WO1979000735A1 (en) * | 1978-03-10 | 1979-10-04 | A Wavre | Device for electronic display of hours and minutes on the dial of a watch |
| DE3275022D1 (en) * | 1982-11-23 | 1987-02-12 | Tron Patent Ag K | Optical display element |
| JPS60108881A (en) * | 1983-11-17 | 1985-06-14 | シャープ株式会社 | Display element |
| JPS61132U (en) * | 1984-06-05 | 1986-01-06 | 株式会社ニコン | Camera exposure control mode display device |
| JP2722824B2 (en) * | 1991-01-30 | 1998-03-09 | 日本電気株式会社 | Display method of day and time |
| US5644326A (en) * | 1995-05-04 | 1997-07-01 | Ford Motor Company | Display device with electrically interconnected display elements |
-
1998
- 1998-01-14 EP EP98200088A patent/EP0859349B1/en not_active Expired - Lifetime
- 1998-01-14 DE DE69805227T patent/DE69805227T2/en not_active Expired - Fee Related
- 1998-01-16 US US09/008,334 patent/US5969628A/en not_active Expired - Fee Related
- 1998-01-19 JP JP10007984A patent/JPH10274945A/en active Pending
- 1998-01-21 CN CN98103692A patent/CN1195836A/en active Pending
- 1998-01-21 KR KR1019980001634A patent/KR19980070652A/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN1195836A (en) | 1998-10-14 |
| DE69805227D1 (en) | 2002-06-13 |
| JPH10274945A (en) | 1998-10-13 |
| KR19980070652A (en) | 1998-10-26 |
| DE69805227T2 (en) | 2002-12-05 |
| US5969628A (en) | 1999-10-19 |
| EP0859349A1 (en) | 1998-08-19 |
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