EP3428739A1 - Display assembly - Google Patents
Display assembly Download PDFInfo
- Publication number
- EP3428739A1 EP3428739A1 EP17181521.0A EP17181521A EP3428739A1 EP 3428739 A1 EP3428739 A1 EP 3428739A1 EP 17181521 A EP17181521 A EP 17181521A EP 3428739 A1 EP3428739 A1 EP 3428739A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display
- assembly according
- substrate
- delo
- secondary object
- 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.)
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0017—Visual time or date indication means in which the light emitting display elements may be activated at will or are controlled in accordance with the ambient light
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/30—Illumination of dials or hands
- G04B19/32—Illumination of dials or hands by luminescent substances
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/30—Illumination of dials or hands
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
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- 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
- G04G9/10—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
Definitions
- the present invention relates to a display assembly and more particularly to an OLED display assembly for illuminating a passive display device for example in a timepiece such as a watch.
- the digital display when it is backlit display, is only turned on demand, so as to reduce the power consumption of the system, while the mechanical display is purely passive , and therefore, not readable in the dark without a Superluminova® type coating.
- These phosphorescent coatings are not good enough for certain applications (eg calendar disc) because of the small surface area coated, but also the extra thickness generated.
- the light is emitted forward and does not illuminate other objects in the same plane or slightly receding from the front face of the display.
- LED light-emitting diode
- DELo organic active layers
- OLED organic active layers
- This low yield is mainly due to total reflections of the light emitted by the active layer.
- the light is emitted isotropically in the LEDs. This isotropy has the effect that the light emitted at an angle relative to the normal to the extraction surface greater than the limit angle undergoes a total reflection, which traps this light in its substrate. This trapped light can represent up to 80% of the light emitted for a substrate that has not been optimized.
- the present invention relates to a display assembly, comprising an organic electroluminescent diode (DELo) display device, comprising at least one DELo composed of an emissive stack deposited on a transparent (or semi-transparent or translucent) substrate whose rear face is disposed on the main emission surface of the LED and a secondary object to be illuminated, said transparent substrate comprising a front face and at least one side face, said side face being arranged to illuminate a secondary object.
- DELo organic electroluminescent diode
- the display assembly is particularly adapted to be integrated in a watch, in which the main surface, which may include an integrated or reported decor and which can be performed by various known techniques (pad printing, screen printing, digital printing, decal, etc.). ..) forms the face of a watch dial that can display information in transmission to the user, a secondary object disposed near the side face can be illuminated by the light trapped between the front faces of the substrate when it leaves by the side face of the substrate. Typically this recovered light can be advantageously used to illuminate a passive analog display disposed near this side face.
- the display device DELo forms a watch face, it can be provided in the thickness of the latter a through opening forming a window and advantageously combined the display device DELo with a passive analog display device of the display type.
- the display device may also illuminate a secondary object disposed near the lateral face and substantially in the same plane as the substrate.
- said side face is frosted so as to produce in use a diffuse light.
- said lateral face has an angle of between 90 and 135 ° with respect to the front face.
- the transparent substrate has a refractive index higher than the refractive index of the layer DELo so as to confine the light in this substrate.
- Opaque covers are advantageously arranged on the lateral faces which do not illuminate the secondary object.
- the present invention aims at providing a display assembly comprising an organic light-emitting diode (DELo) display device A, used to display information on demand to the user, and a secondary object 6 to be illuminated for use at best the light emitted by one or more organic LEDs of the display device DELo A, trapped between the faces of the device substrate and recovered to illuminate the secondary object 6 associated with this device DELo.
- DELo organic light-emitting diode
- a watch M incorporating a mixed display device comprising an active lighting screen A (backlit, LED or DELo), which can be decorated on its face facing the user, and a passive display comprising a time dial cooperating with needles 11 and a passive display member 6 visible through a window 7 formed in the dial.
- active lighting screen A backlit, LED or DELo
- passive display comprising a time dial cooperating with needles 11 and a passive display member 6 visible through a window 7 formed in the dial.
- the display assembly of the invention uses the light trapped in a transparent layer 2 of the active display by the total reflection by extracting this light by a lateral face 8 substantially perpendicular to the main faces or having an angle ⁇ between 90 ° and 135 ° to the front.
- the active display device of the invention comprises an organic LED emitting diode 1 emitting layer DELo disposed on the rear face of the transparent substrate 2. It can be an active matrix DELo type screen, or a liquid crystal display (LCD) including the TFT type associated with a backlight device comprising a DELo or an LED in the latter case the light is recovered from the side faces of the light guide of the backlight device This screen , in the present description is considered the main display.
- part of the light trapped between the parallel faces of the transparent substrate 2 due to the total reflection is extracted by at least one side face 8 made in the selected area.
- This light can then be used to illuminate other so-called secondary elements, such as an analog time display or a visible display member through the window 7, for example a date disk 6.
- One or more additional layers 3 may be added to the surface of the transparent substrate 2. These layers may for example serve as anti-scratch, antireflection, aesthetic layer.
- the lateral faces 8 of the substrate 2 preferably have a texture reducing the internal reflection, in order to optimize the light extraction.
- the techniques of cutting with water jet, by grinding, or by ultrasound have the advantageous effect of roughening the sidewall 8 of the substrate 2, thus improving the diffusion and thus the uniformity of the output of the light.
- an object slightly set back from the main display as would be a conventional date display by a mechanically driven date disk (see figures 2 and 3 ) is preferably illuminated by lateral faces oriented towards this secondary display, which has the additional advantage of reducing the direct view to the user, and therefore of reducing glare.
- the side faces not illuminating secondary object may advantageously be covered with an opaque layer 9, preferably reflective.
- the organic light-emitting diode (LED) display device of the invention is advantageously integrated with mixed watches, comprising a traditional time display comprising hands 11 and a window 7 under which is driven a date disk 6
- the hands are backlit by the main display device DELo which forms a dial located behind them, while the window 7 is illuminated by the side faces 8 of the window 7 formed in the substrate 2 of the diode display device.
- organic electroluminescent (DELo) of the invention is advantageously integrated with mixed watches, comprising a traditional time display comprising hands 11 and a window 7 under which is driven a date disk 6
- the hands are backlit by the main display device DELo which forms a dial located behind them, while the window 7 is illuminated by the side faces 8 of the window 7 formed in the substrate 2 of the diode display device.
- organic electroluminescent (DELo) of the invention is advantageously integrated with mixed watches, comprising a traditional time display comprising hands 11 and a window 7 under which is driven a date disk 6
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Electric Clocks (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Ensemble d'affichage comprenant un dispositif d'affichage à diode électroluminescentes organique (DELo) comprenant au moins une DELo (1) comprenant un empilement émissif déposé sur un substrat transparent (2) dont la face arrière est disposée sur la surface d'émission de la DELo (1) et un objet secondaire à éclairer, ledit substrat transparent comprenant une face avant et au moins une face latérale (8) disposée de façon à éclairer un objet secondaire (6). Display assembly comprising an organic light-emitting diode (DELo) display device comprising at least one DELo (1) comprising an emitting stack deposited on a transparent substrate (2) whose rear face is disposed on the transmission surface of DELo (1) and a secondary object to be illuminated, said transparent substrate comprising a front face and at least one side face (8) arranged to illuminate a secondary object (6).
Description
La présente invention se rapporte à un ensemble d'affichage et plus particulièrement un ensemble d'affichage OLED destiné à éclairer un dispositif d'affichage passif par exemple dans une pièce d'horlogerie telle qu'une montre.The present invention relates to a display assembly and more particularly to an OLED display assembly for illuminating a passive display device for example in a timepiece such as a watch.
Dans le secteur de l'horlogerie, de plus en plus de dispositifs combinent un affichage mécanique à aiguilles traditionnel et un affichage numérique, par exemple pour des applications connectées à un smartphone, ou à tout autre objet muni de moyens de communication.In the watch industry, more and more devices combine a traditional mechanical needle display and a digital display, for example for applications connected to a smartphone, or to any other object provided with means of communication.
Dans de tels dispositifs, l'affichage numérique, lorsqu'il s'agit d'affichage rétroéclairé, n'est allumé qu'à la demande, de façon à réduire la consommation électrique du système, tandis que l'affichage mécanique est purement passif, et donc, non lisible dans l'obscurité sans un revêtement du type Superluminova®. Ces revêtements phosphorescents ne sont pas assez performants pour certaines applications (disque quantième par exemple) en raison de la faible surface revêtue, mais aussi de la surépaisseur engendrée.In such devices, the digital display, when it is backlit display, is only turned on demand, so as to reduce the power consumption of the system, while the mechanical display is purely passive , and therefore, not readable in the dark without a Superluminova® type coating. These phosphorescent coatings are not good enough for certain applications (eg calendar disc) because of the small surface area coated, but also the extra thickness generated.
Dans un affichage numérique de l'art antérieur néanmoins, la lumière est émise vers l'avant et ne permet pas d'éclairer d'autres objets dans le même plan ou légèrement en recul par rapport à la face avant de l'affichage.In a digital display of the prior art, however, the light is emitted forward and does not illuminate other objects in the same plane or slightly receding from the front face of the display.
Par ailleurs, il est connu que le rendement des dispositifs à diodes électroluminescentes (DEL), y compris ceux à base de couches actives organiques (DELo en Français ou OLED en Anglais) généralement utilisés pour l'éclairage de ces affichages, est fortement limité par le rendement optique, dû à la difficulté d'extraction de la lumière depuis un milieu fortement réfringent vers un milieu faiblement réfringent. Ce faible rendement est principalement dû à des réflexions totales de la lumière émise par la couche active. En effet, contrairement aux lasers où la lumière cohérente est fortement orientée par la cavité résonnante, la lumière est émise de façon isotrope dans les DEL. Cette isotropie a pour effet que la lumière émise avec un angle par rapport à la normale à la surface d'extraction supérieur à l'angle limite subit une réflexion totale, ce qui piège cette lumière dans son substrat. Cette lumière piégée peut représenter jusqu'à 80% de la lumière émise pour un substrat qui n'a pas été optimisé.Moreover, it is known that the performance of light-emitting diode (LED) devices, including those based on organic active layers (DELo in French or OLED in English) generally used for the lighting of these displays, is strongly limited by the yield optical, due to the difficulty of extracting light from a highly refractive medium to a weakly refractive medium. This low yield is mainly due to total reflections of the light emitted by the active layer. Indeed, unlike lasers where the coherent light is strongly oriented by the resonant cavity, the light is emitted isotropically in the LEDs. This isotropy has the effect that the light emitted at an angle relative to the normal to the extraction surface greater than the limit angle undergoes a total reflection, which traps this light in its substrate. This trapped light can represent up to 80% of the light emitted for a substrate that has not been optimized.
Afin d'augmenter le rendement optique des affichages numériques, diverses stratégies de texturation de la surface d'extraction ont été proposées dans l'art antérieur : dépolissage de la surface, structures régulières de films dit « optiques » optimisés pour l'extraction de la lumière, « dômes » hémicylindriques au-dessus des zones actives (pixels).In order to increase the optical efficiency of the digital displays, various strategies for texturing the extraction surface have been proposed in the prior art: surface etching, regular structures of so-called "optical" films optimized for the extraction of the light, hemicylindrical "domes" above the active areas (pixels).
Néanmoins, à ce jour, quel que soit le dispositif d'extraction, une proportion non négligeable de la lumière émise au niveau de la jonction de la DEL reste piégée et est perdue dans le guide d'onde formé par le substrat et le cas échéant dans les différentes couches qui composent l'OLED.Nevertheless, to date, whatever the extraction device, a significant proportion of the light emitted at the junction of the LED remains trapped and is lost in the waveguide formed by the substrate and, where appropriate in the different layers that make up the OLED.
La présente invention concerne un ensemble d'affichage, comprenant un dispositif d'affichage à diode électroluminescentes organiques (DELo), comprenant au moins une DELo composée d'un empilement émissif déposé sur un substrat transparent (ou semi-transparent ou translucide) dont la face arrière est disposée sur la surface principale d'émission de la DELo et un objet secondaire à éclairer, ledit substrat transparent comprenant une face avant et au moins une face latérale, ladite face latérale étant agencée de façon à éclairer un objet secondaire.The present invention relates to a display assembly, comprising an organic electroluminescent diode (DELo) display device, comprising at least one DELo composed of an emissive stack deposited on a transparent (or semi-transparent or translucent) substrate whose rear face is disposed on the main emission surface of the LED and a secondary object to be illuminated, said transparent substrate comprising a front face and at least one side face, said side face being arranged to illuminate a secondary object.
L'ensemble d'affichage est particulièrement adapté à être intégré dans une montre, dans laquelle la surface principale, qui peut comprendre un décor intégré ou rapporté et qui peut être réaliséepar diverses techniques connues (tampographie, sérigraphie, digital printing, décalque, etc...) forme la face d'un cadran de montre pouvant afficher une information en transmission vers l'utilisateur, un objet secondaire disposé à proximité de la face latérale pouvant être éclairé par la lumière piégée entre les faces frontales du substrat lorsqu'elle sort par la face latérale du substrat. Typiquement cette lumière récupérée peut être avantageusement mise à profit pour éclairer un affichage analogique passif disposé à proximité de cette face latérale. Lorsque le dispositif d'affichage DELo forme un cadran de montre, on peut prévoir dans l'épaisseur de ce dernier une ouverture traversante formant un guichet et avantageusement combiné le dispositif d'affichage DELo avec un dispositif d'affichage analogique passif du type affichage de quantième dans lequel le disque de quantième se déplace sous le guichet et dans lequel l'information portée par le disque de quantième visible à travers le guichet peut être éclairée par la lumière extraite des parois latérales du guichet. Le dispositif d'affichage peut également éclairer un objet secondaire disposé à proximité de la face latérale et sensiblement dans le même plan que le substrat.The display assembly is particularly adapted to be integrated in a watch, in which the main surface, which may include an integrated or reported decor and which can be performed by various known techniques (pad printing, screen printing, digital printing, decal, etc.). ..) forms the face of a watch dial that can display information in transmission to the user, a secondary object disposed near the side face can be illuminated by the light trapped between the front faces of the substrate when it leaves by the side face of the substrate. Typically this recovered light can be advantageously used to illuminate a passive analog display disposed near this side face. When the display device DELo forms a watch face, it can be provided in the thickness of the latter a through opening forming a window and advantageously combined the display device DELo with a passive analog display device of the display type. date in which the date disk moves under the aperture and in which the information carried by the date disk visible through the window can be illuminated by the light extracted from the side walls of the window. The display device may also illuminate a secondary object disposed near the lateral face and substantially in the same plane as the substrate.
De préférence, ladite face latérale est dépolie de façon à produire en utilisation une lumière diffuse.Preferably, said side face is frosted so as to produce in use a diffuse light.
Avantageusement, ladite face latérale présente un angle compris entre 90 et 135° par rapport à la face avant.Advantageously, said lateral face has an angle of between 90 and 135 ° with respect to the front face.
Avantageusement, le substrat transparent présente un indice de réfraction plus élevé que l'indice de réfraction de la couche DELo de façon à confiner la lumière dans ce substrat.Advantageously, the transparent substrate has a refractive index higher than the refractive index of the layer DELo so as to confine the light in this substrate.
Des caches opaques sont avantageusement disposés sur les faces latérales n'éclairant pas l'objet secondaire.Opaque covers are advantageously arranged on the lateral faces which do not illuminate the secondary object.
-
La
figure 1 représente une vue en perspective d'une montre comprenant un ensemble d'affichage selon l'invention.Thefigure 1 represents a perspective view of a watch comprising a display assembly according to the invention. -
La
figure 2 représente une vue en coupe d'une montre comprenant un ensemble d'affichage selon l'invention représenté à lafigure 1 .Thefigure 2 represents a sectional view of a watch comprising a display assembly according to the invention shown in FIG.figure 1 . -
La
figure 3 représente un agrandissement de la zone 10 de lafigure 2 .Thefigure 3 represents an enlargement ofarea 10 of thefigure 2 .
La présente invention vise à proposer un ensemble d'affichage comprenant un dispositif d'affichage à diode électroluminescentes organique (DELo) A, utilisé pour afficher à la demande des informations vers l'utilisateur, et un objet secondaire 6 à éclairer permettant d'utiliser au mieux la lumière émise par une ou des LED organiques du dispositif d'affichage DELo A, piégée entre les faces du substrat du dispositif et récupérée pour éclairer l'objet secondaire 6 associé à ce dispositif DELo.The present invention aims at providing a display assembly comprising an organic light-emitting diode (DELo) display device A, used to display information on demand to the user, and a
Selon un mode de réalisation de l'invention représenté aux
Tel que représenté à la
Dans un tel dispositif, seule la lumière 4 émise par la DELo présentant un angle par rapport à la normale à la surface du verre d'affichage inférieur à l'angle limite peut émerger de la face avant du substrat transparent.In such a device, only the light 4 emitted by the LED having an angle to the normal to the surface of the display glass less than the limit angle can emerge from the front face of the transparent substrate.
Selon l'invention, une partie de la lumière piégée 5 entre les faces parallèles du substrat transparent 2 en raison de la réflexion totale est extraite par au moins une face latérale 8 réalisée dans la zone sélectionnée. Cette lumière peut alors être utilisée pour éclairer d'autres éléments 6 dits secondaires, tel qu'un affichage horaire analogique ou un organe d'affichage visible à travers le guichet 7 par exemple un disque de quantièmes 6.According to the invention, part of the light trapped between the parallel faces of the
Il est possible de modifier le ratio entre la lumière émise par la face frontale avant et la lumière émise par la tranche ou face latérale du substrat en modifiant l'indice de réfraction du substrat : plus le substrat présente un indice de réfraction élevé, plus la lumière sera piégée dans la couche transparente 2. Il peut, de ce point de vue être avantageux d'utiliser un substrat 2 d'indice élevé, tel que le saphir dont l'indice de réfraction est de 1,768.It is possible to modify the ratio between the light emitted by the front end face and the light emitted by the edge or side face of the substrate by modifying the refractive index of the substrate: the higher the substrate has a high refractive index, the higher the light will be trapped in the
Une ou des couches supplémentaires 3 peuvent être ajoutées à la surface du substrat transparent 2. Ces couches peuvent par exemple servir de couche anti-rayure, antireflet, esthétique.One or more
Les faces latérales 8 du substrat 2 présentent de préférence une texture réduisant la réflexion interne, afin d'optimiser l'extraction lumineuse. En particulier les techniques de découpe au jet d'eau, par meulage, ou par ultrasons ont pour effet avantageux de dépolir le flanc 8 du substrat 2, améliorant ainsi la diffusion et donc l'uniformité de la sortie de la lumière.The
Selon la position de l'objet secondaire 6 à éclairer, il peut être avantageux d'incliner le flanc 8 d'éclairage. En particulier, tel que représenté à la
Pour éviter tout éclairage parasite, les faces latérales n'éclairant pas d'objet secondaire peuvent avantageusement être couvertes d'une couche opaque 9, de préférence réfléchissante.To avoid any parasitic lighting, the side faces not illuminating secondary object may advantageously be covered with an
Tel que représenté aux
Claims (11)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17181521.0A EP3428739B1 (en) | 2017-07-14 | 2017-07-14 | Display assembly |
| JP2018130456A JP2019020404A (en) | 2017-07-14 | 2018-07-10 | Display assembly |
| CN202211476363.3A CN115793428A (en) | 2017-07-14 | 2018-07-12 | Display assembly |
| CN201810764665.8A CN109254520A (en) | 2017-07-14 | 2018-07-12 | display assembly |
| US16/034,904 US11249444B2 (en) | 2017-07-14 | 2018-07-13 | Display assembly |
| JP2021021891A JP7289858B2 (en) | 2017-07-14 | 2021-02-15 | display assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17181521.0A EP3428739B1 (en) | 2017-07-14 | 2017-07-14 | Display assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3428739A1 true EP3428739A1 (en) | 2019-01-16 |
| EP3428739B1 EP3428739B1 (en) | 2020-06-24 |
Family
ID=59350806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17181521.0A Active EP3428739B1 (en) | 2017-07-14 | 2017-07-14 | Display assembly |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11249444B2 (en) |
| EP (1) | EP3428739B1 (en) |
| JP (2) | JP2019020404A (en) |
| CN (2) | CN115793428A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3779612A1 (en) * | 2019-08-16 | 2021-02-17 | The Swatch Group Research and Development Ltd | Method for broadcasting a message to the wearer of a watch |
| EP3789830B1 (en) * | 2019-09-09 | 2024-04-03 | The Swatch Group Research and Development Ltd | Dial and method for manufacturing a dial for a watch |
| EP3845976B1 (en) * | 2019-12-30 | 2024-03-20 | The Swatch Group Research and Development Ltd | Watch dial having a display made of organic light-emitting diodes |
| US12201570B2 (en) | 2020-03-04 | 2025-01-21 | Innovative Vending Solutions Llc | Systems and methods for user control of electronic chairs |
| US11682256B2 (en) | 2020-03-04 | 2023-06-20 | Ube Exsymo Co.. Ltd. | Systems and methods for user control of electronic chairs |
| EP4102309B1 (en) | 2021-06-08 | 2025-03-26 | The Swatch Group Research and Development Ltd | Timepiece including a trim component provided with a part made of zirconia |
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| JP4599637B2 (en) * | 1999-09-30 | 2010-12-15 | カシオ計算機株式会社 | Clock dial and clock |
| JP2001296374A (en) * | 2000-04-13 | 2001-10-26 | Casio Comput Co Ltd | Clock dial, method of manufacturing the same, and clock |
| JP2004198681A (en) * | 2002-12-18 | 2004-07-15 | Casio Comput Co Ltd | Lighting equipment and electronic equipment |
| EP1666992A1 (en) * | 2004-12-02 | 2006-06-07 | Asulab S.A. | Timepiece comprising a luminous decoration |
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2017
- 2017-07-14 EP EP17181521.0A patent/EP3428739B1/en active Active
-
2018
- 2018-07-10 JP JP2018130456A patent/JP2019020404A/en active Pending
- 2018-07-12 CN CN202211476363.3A patent/CN115793428A/en active Pending
- 2018-07-12 CN CN201810764665.8A patent/CN109254520A/en active Pending
- 2018-07-13 US US16/034,904 patent/US11249444B2/en active Active
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2021
- 2021-02-15 JP JP2021021891A patent/JP7289858B2/en active Active
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|---|---|---|---|---|
| EP1780615A1 (en) * | 2005-10-28 | 2007-05-02 | Montres Rado S.A. | Display unit with decorative effect for a portable instrument, such as a watch |
| CH702419A2 (en) * | 2009-12-22 | 2011-06-30 | Swatch Group Res & Dev Ltd | Timepiece i.e. electronic watch, has luminous device arranged so as to project shades of element arranged between luminous device and bottom of case or dial over dial or bottom of case when luminous device is utilized |
| EP2814078A1 (en) * | 2013-06-14 | 2014-12-17 | Saint-Gobain Glass France | Transparent diffusive oled substrate and method for producing such a substrate |
| US20150378319A1 (en) * | 2014-06-27 | 2015-12-31 | Casio Computer Co., Ltd. | Electronic timepiece including light emitting section |
| US20160363909A1 (en) * | 2015-06-11 | 2016-12-15 | Samsung Display Co., Ltd. | Display device and electronic watch including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019020404A (en) | 2019-02-07 |
| US11249444B2 (en) | 2022-02-15 |
| JP2021073475A (en) | 2021-05-13 |
| CN115793428A (en) | 2023-03-14 |
| EP3428739B1 (en) | 2020-06-24 |
| JP7289858B2 (en) | 2023-06-12 |
| US20190018372A1 (en) | 2019-01-17 |
| CN109254520A (en) | 2019-01-22 |
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