EP3270459B1 - Operating device with a touch-sensitive flat panel display - Google Patents

Operating device with a touch-sensitive flat panel display Download PDF

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Publication number
EP3270459B1
EP3270459B1 EP16179497.9A EP16179497A EP3270459B1 EP 3270459 B1 EP3270459 B1 EP 3270459B1 EP 16179497 A EP16179497 A EP 16179497A EP 3270459 B1 EP3270459 B1 EP 3270459B1
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EP
European Patent Office
Prior art keywords
operating device
cavity
coil antenna
frame
flat coil
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.)
Active
Application number
EP16179497.9A
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German (de)
French (fr)
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EP3270459A1 (en
Inventor
Martin Busch
Alfredo Hummel
Alexander Jovy
Heinrich Schlichting
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Siemens AG
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Siemens AG
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Priority to EP16179497.9A priority Critical patent/EP3270459B1/en
Publication of EP3270459A1 publication Critical patent/EP3270459A1/en
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Publication of EP3270459B1 publication Critical patent/EP3270459B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect

Definitions

  • the invention relates to an operating device with a touch-sensitive flat display, a side of the flat display facing an operator forming an operating side, with a metallic frame in which the flat display is arranged and with a contactless reading unit.
  • Such control devices are for example from the German utility model DE 20 2009 015 620 U1 and known from the product description for an industrial panel PWS-870 by Advantech with the date 26.02.2016.
  • the reading unit In the known operating devices, it is disadvantageous that either, as described in the utility model, the reading unit must be inserted into the operating device via a receiving slot or, as is shown in the product sheet for the PWS-870 industrial panel, at the rear, i.e. on the Back of the control panel is attached.
  • the EP 2 026 408 A1 discloses a portable electronic device with an antenna in the front, but here are the housing or frame made of plastic or other non-conductive material.
  • the object is achieved in that a flat coil antenna of the reading unit is arranged above a cavity, the cavity being a structural component of the metallic frame and having an opening facing the operator side, the flat coil antenna being arranged above the opening in this way, that it covers them up.
  • An operating device in which a reading unit is integrated in a metallic front frame has now advantageously been provided.
  • an operator can now easily move an identification card to the front of the operator panel and does not have to hold it to the rear of the operator panel as with the PWS-870.
  • a surface made of ferrite foil is arranged on the frame to the left and right of the opening.
  • the arrangement of the surfaces made of ferrite foil permits a correct guidance of the magnetic field with regard to the magnetic field and improves the energy and data transmission in systems coupled via radio frequencies, such as NFC, RFID. This facilitates and increases the efficiency and recognition, for example of an RFID card in the communication area.
  • a cover film is arranged on the metallic frame and the ferrite film surfaces lie between the metallic frame and the cover film, the flat coil antenna with a printed circuit board being arranged under the cover film.
  • a membrane keyboard is integrated in the cover film.
  • the reading unit is advantageously designed as an RFID reading unit.
  • the flat coil antenna is integrated in a circuit board and the cavity is encapsulated with a non-conductive material.
  • the cavity has a depth of approx. 5 mm, which has proven to be particularly favorable for data and energy transmission.
  • the cover film with this membrane keyboard turns out to be relatively thick, which is why the cover film at the location of the opening is designed to be thinner than the remaining cover film covering the frame, so that the Flat coil antenna is partly arranged in the cover film and partly in the frame.
  • This arrangement of the flat coil antenna slightly protruding from the frame also improves the range or the signal strength during data transmission.
  • an RFID antenna it is now arranged at a certain distance from the metallic front frame, but it emerges somewhat from the metallic front frame. Since the cover film is usually designed as a design film, and no raised or deepening areas are to occur at the location of the RFID antenna and one wants to achieve a homogeneous design, the design film at the location of the RFID antenna is accordingly designed to be thinner.
  • an RFID antenna was created in an already existing metal frame by additionally constructing a cavity in the metal frame, thereby optimizing the range and signal strength of the RFID function.
  • a further significant improvement in the signal strength is achieved by an additional ferrite foil, which is arranged, for example, to the left and right of the RFID antenna.
  • This ferrite foil is integrated under the cover foil as a separate layer, and in order to achieve the required homogeneous design in the cover foil, the RFID antenna is cast on the back. This compensates for tolerances in the individual components.
  • an advantage for an operator is the integration of an RFID antenna on the front. If the operator now wants to log on to the operator panel, he no longer has to hold his ID card on the back of the operator panel, but simply put it on the front of the operator panel.
  • FIG. 1 An operating device 1 with a touch-sensitive flat display 2 is shown.
  • the touch-sensitive flat display 2 has an operating side 3, which is directed towards an operator.
  • the flat display 2 is surrounded by a metallic frame 4.
  • a reading unit 5 is integrated in the metallic frame 4 of the operating device 1 in the upper left corner of the operating device 1.
  • the flat coil antenna 5a with a printed circuit board 5b is arranged under a cover film 10, which is designed as a design film with an integrated film keyboard 20 (see FIG 2 or FIG 4 ). If an operator now wants to log on to the operating device 1 using an RFID card, he only needs to hold his ID card in the upper left corner of the operating device 1 and can thus log on to the operating device 1 automatically.
  • FIG. 1 With the FIG 2 is that in FIG. 1 shown control device 1 without the cover sheet 10.
  • the reading unit 5 or the flat coil antenna 5a There is a clear view of the reading unit 5 or the flat coil antenna 5a.
  • a first surface 11 and a second surface 12 are arranged to the left and right of the flat coil antenna 5a and above and below the flat coil antenna 5a.
  • the first surface 11 and the second surface 12 are designed as a ferrite foil.
  • the ferrite foil improves energy and data transmission in an RFID system.
  • the cavity 6 integrated into the metallic frame 4 is shown.
  • the flat coil antenna 5a (see FIG 2 ) arranged.
  • the cavity 6 has a forward opening 7.
  • the cavity 6 is a structural component of the metallic frame 4 and the opening 7 directed towards the operating side 3 is covered in the assembled state by the flat coil antenna 5a and the cover film 10 lying above it.
  • FIG 4 a section through the cavity 6 is shown.
  • the cavity 6 is covered by the flat coil antenna 5a or the printed circuit board 5b.
  • the circuit board 5b is arranged above the cavity 6 in the opening 7 in such a way that the flat coil antenna 5a is arranged partly in the cover film 10 and partly in the frame 4.
  • the cover film 10 is accordingly thinner at the location of the opening 7.
  • the ferrite foil has a thickness of approximately 0.2 mm.
  • FIG 5 the rear view of a cover film 10 is shown in a detail, which is designed as a design film.
  • the first surface is on the back of the cover film 10 11 made of ferrite foil and the second surface 12 also made of ferrite foil.
  • the cover film 10 covers the opening 7 or the cavity 6 in the metallic frame 4
  • the first surface is on the back of the cover film 10 11 made of ferrite foil and the second surface 12 also made of ferrite foil.
  • there is a distance of 30 mm between the two ferrite foil surfaces 11, 12 and the first ferrite foil surface 11 and the second ferrite foil surface 12 have a width of the dimensions approx. 14 mm x 30 mm.
  • the cavity 6 is shown again in a sectional view.
  • a depth T of the cavity of 5 mm has proven to be advantageous for the data transmission.

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  • Support Of Aerials (AREA)
  • Near-Field Transmission Systems (AREA)

Description

Die Erfindung betrifft ein Bediengerät mit einem berührungsempfindlichen Flachdisplay, wobei eine zu einem Bediener gerichtete Seite des Flachdisplays eine Bedienseite bildet, mit einem metallischen Rahmen in dem das Flachdisplay angeordnet ist und mit einer berührungslosen Leseeinheit.The invention relates to an operating device with a touch-sensitive flat display, a side of the flat display facing an operator forming an operating side, with a metallic frame in which the flat display is arranged and with a contactless reading unit.

Derartige Bediengeräte sind beispielsweise aus der deutschen Gebrauchsmusterschrift DE 20 2009 015 620 U1 und aus der Produktbeschreibung für ein Industriepanel PWS-870 von der Firma Advantech mit dem Datum 26.02.2016 bekannt. Bei den bekannten Bediengeräten ist es von Nachteil, dass entweder, wie in der Gebrauchsmusterschrift beschrieben, die Leseeinheit über einen Aufnahmeschacht in das Bediengerät gesteckt werden muss oder, wie es bei dem Produktblatt für das PWS-870 Industriepanel aufgezeigt wird, hinten, also an der Rückseite des Bedienpanels angebracht ist.Such control devices are for example from the German utility model DE 20 2009 015 620 U1 and known from the product description for an industrial panel PWS-870 by Advantech with the date 26.02.2016. In the known operating devices, it is disadvantageous that either, as described in the utility model, the reading unit must be inserted into the operating device via a receiving slot or, as is shown in the product sheet for the PWS-870 industrial panel, at the rear, i.e. on the Back of the control panel is attached.

Die EP 2 026 408 A1 offenbart zwar ein tragbares elektronisches Gerät mit einer Antenne in der Front allerdings sind hier das Gehäuse oder Rahmen aus Plastik oder einem anderen nichtleitenden Material.The EP 2 026 408 A1 discloses a portable electronic device with an antenna in the front, but here are the housing or frame made of plastic or other non-conductive material.

Es ist Aufgabe der vorliegenden Erfindung ein Bediengerät bereitzustellen, bei dem eine berührungslose Leseeinheit in der Front des Bediengerätes untergebracht ist und es so einen Bediener erleichtert wird, beispielsweise für eine Identifikation einen Ausweis an die Front des Bediengerätes zu führen.It is an object of the present invention to provide an operating device in which a contactless reading unit is accommodated in the front of the operating device and it is thus made easier for an operator to carry an identification card to the front of the operating device, for example for identification.

Bei dem eingangs genannten Bediengerät wird die Aufgabe dadurch gelöst, dass eine Flachspulenantenne der Leseeinheit über einem Hohlraum angeordnet ist, wobei der Hohlraum ein konstruktiver Bestandteil des metallischen Rahmens ist und eine zur Bedienseite gerichtete Öffnung aufweist, die Flachspulenantenne ist dabei derart über der Öffnung angeordnet, dass sie diese verdeckt. Nun ist mit Vorteil ein Bediengerät bereitgestellt worden, bei dem eine Leseeinheit in einem metallischen Frontrahmen integriert ist. Im Gegensatz zu der Lösung bei dem Industriepanel PWS-870 kann nun ein Bediener leicht eine Identifikationskarte an die Front des Bediengerätes heranführen und muss sie nicht wie bei dem PWS-870 an die Rückseite des Bediengerätes halten.In the operating device mentioned at the outset, the object is achieved in that a flat coil antenna of the reading unit is arranged above a cavity, the cavity being a structural component of the metallic frame and having an opening facing the operator side, the flat coil antenna being arranged above the opening in this way, that it covers them up. An operating device in which a reading unit is integrated in a metallic front frame has now advantageously been provided. In contrast to the solution for the PWS-870 industrial panel, an operator can now easily move an identification card to the front of the operator panel and does not have to hold it to the rear of the operator panel as with the PWS-870.

Links und rechts der Öffnung ist je eine Fläche aus Ferritfolie auf dem Rahmen angeordnet. Die Anordnung der Flächen aus Ferritfolie erlaubt im Hinblick auf das magnetische Feld eine korrekte Führung des Magnetfeldes und verbessert die Energie- und Datenübertragung in über Radiofrequenzen gekoppelten Systemen, wie NFC, RFID. Hierdurch wird die Effizienz und das Erkennen, beispielsweise einer RFID-Karte im Kommunikationsbereich erleichtert und vergrößert.A surface made of ferrite foil is arranged on the frame to the left and right of the opening. The arrangement of the surfaces made of ferrite foil permits a correct guidance of the magnetic field with regard to the magnetic field and improves the energy and data transmission in systems coupled via radio frequencies, such as NFC, RFID. This facilitates and increases the efficiency and recognition, for example of an RFID card in the communication area.

Eine Deckfolie ist auf dem metallischen Rahmen angeordnet und die Ferritfolienflächen liegen zwischen dem metallischen Rahmen und der Deckfolie, wobei die Flachspulenantenne mit einer Leiterplatte unter der Deckfolie angeordnet ist.A cover film is arranged on the metallic frame and the ferrite film surfaces lie between the metallic frame and the cover film, the flat coil antenna with a printed circuit board being arranged under the cover film.

Um eine Funktion des Bediengerätes zu erweitern, ist in der Deckfolie eine Folientastatur integriert.In order to expand a function of the control unit, a membrane keyboard is integrated in the cover film.

Vorteilhafter Weise ist die Leseeinheit als eine RFID-Leseeinheit ausgestaltet.The reading unit is advantageously designed as an RFID reading unit.

Die Flachspulenantenne ist in einer Leiterplatte integriert und der Hohlraum ist mit einem nicht leitenden Material vergossen.The flat coil antenna is integrated in a circuit board and the cavity is encapsulated with a non-conductive material.

Hinsichtlich von EMV-Eigenschaften und einer Abstrahlcharakteristik hat der Hohlraum eine Tiefe von ca. 5 mm, welches sich für die Daten- und Energieübertragung als besonders günstig herausgestellt hat.With regard to EMC properties and a radiation characteristic, the cavity has a depth of approx. 5 mm, which has proven to be particularly favorable for data and energy transmission.

Insbesondere bei Einsatz einer Deckfolie mit einer integrierten Folientastatur fällt die Deckfolie mit dieser Folientastatur relativ Dick aus, darum ist die Deckfolie an der Stelle der Öffnung derart dünner, ausgestaltet als die den Rahmen bedeckende restliche Deckfolie ausgeprägt ist, so dass die Flachspulenantenne zum Teil in der Deckfolie und zum Teil in dem Rahmen angeordnet ist. Auch diese Anordnung der leicht aus dem Rahmen herausstehenden Flachspulenantenne verbessert die Reichweite bzw. die Signalstärke bei einer Datenübertragung. Wird beispielsweise eine RFID-Antenne eingesetzt, so ist sie nun in einen gewissen Abstand zu dem metallischen Frontrahmen angeordnet, dabei tritt sie aber aus dem metallischen Frontrahmen etwas hervor. Da in der Regel die Deckfolie als eine Designfolie ausgestaltet ist, und keine erhabene bzw. vertiefende Bereiche an der Stelle der RFID-Antenne auftreten sollen und man ein homogenes Design erreichen möchte, ist die Designfolie an der Stelle der RFID-Antenne dementsprechend dünner ausgestaltet.Especially when using a cover film with an integrated membrane keyboard, the cover film with this membrane keyboard turns out to be relatively thick, which is why the cover film at the location of the opening is designed to be thinner than the remaining cover film covering the frame, so that the Flat coil antenna is partly arranged in the cover film and partly in the frame. This arrangement of the flat coil antenna slightly protruding from the frame also improves the range or the signal strength during data transmission. If, for example, an RFID antenna is used, it is now arranged at a certain distance from the metallic front frame, but it emerges somewhat from the metallic front frame. Since the cover film is usually designed as a design film, and no raised or deepening areas are to occur at the location of the RFID antenna and one wants to achieve a homogeneous design, the design film at the location of the RFID antenna is accordingly designed to be thinner.

Zusammenfassend kann gesagt werden das in einem bereits bestehenden Metallrahmen die Möglichkeit für den Einbau einer RFID-Antenne geschaffen wurde, in dem man in den Metallrahmen zusätzlich einen Hohlraum herein konstruiert, dadurch wird die Reichweite und die Signalstärke der RFID-Funktion optimiert. Eine weitere wesentliche Verbesserung der Signalstärke wird erreicht, durch eine zusätzliche Ferritfolie, welche beispielsweise links und rechts von der RFID-Antenne angeordnet ist. Diese Ferritfolie wird unter die Deckfolie als eine eigene Schicht integriert, und um das geforderte homogene Design in der Deckfolie zu erreichen, wird die RFID-Antenne rückseitig vergossen. Dadurch werden Toleranzen der einzelnen Komponenten ausgeglichen.In summary, it can be said that the possibility for the installation of an RFID antenna was created in an already existing metal frame by additionally constructing a cavity in the metal frame, thereby optimizing the range and signal strength of the RFID function. A further significant improvement in the signal strength is achieved by an additional ferrite foil, which is arranged, for example, to the left and right of the RFID antenna. This ferrite foil is integrated under the cover foil as a separate layer, and in order to achieve the required homogeneous design in the cover foil, the RFID antenna is cast on the back. This compensates for tolerances in the individual components.

Mit der Erfindung wurde die Integration einer RFID-Antenne in einen Metallfrontrahmen für beispielsweise eine industrielle Bedieneinrichtung erreicht. Als Vorteil für einen Bediener ist die frontseitige Integration einer RFID-Antenne zu sehen wenn der Bediener sich nun an den Bediengerät anmelden möchte, muss er seine Ausweiskarte nicht mehr an die Rückseite des Bediengerätes halten, sondern einfach an die Frontseite des Bediengerätes anlegen.With the invention, the integration of an RFID antenna in a metal front frame was achieved for example for an industrial control device. An advantage for an operator is the integration of an RFID antenna on the front. If the operator now wants to log on to the operator panel, he no longer has to hold his ID card on the back of the operator panel, but simply put it on the front of the operator panel.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. Es zeigen:

FIG 1
ein Bediengerät mit einer Designfolie in einer dreidimensionalen Darstellung,
FIG 2
das aus FIG 1 bekannte Bediengerät mit abgenommener Designfolie,
FIG 3
das Bediengerät mit Blick auf einem Hohlraum für den Einbauort einer RFID-Antenne,
FIG 4
einen Schnitt durch den metallischen Rahmen des Bediengerätes an der Stelle des Hohlraumes,
FIG 5
einen Ausschnitt aus der Deckfolie an der Stelle der RFID-Antenne, wobei der Blick auf dem Ausschnitt von hinten dargestellt ist und
FIG 6
einen Schnitt durch den Hohlraum mit angeordneter Flachspulenantenne bzw. Leiterplatte.
The drawing shows an embodiment of the invention. Show it:
FIG. 1
an operating device with a design film in a three-dimensional representation,
FIG 2
the end FIG. 1 known operating device with removed design foil,
FIG 3
the control unit with a view of a cavity for the installation location of an RFID antenna,
FIG 4
a section through the metallic frame of the operating device at the location of the cavity,
FIG 5
a section of the cover film at the location of the RFID antenna, the view of the section being shown from behind and
FIG 6
a section through the cavity with an arranged flat coil antenna or printed circuit board.

Gemäß der FIG 1 ist ein Bediengerät 1 mit einem berührungsempfindlichen Flachdisplay 2 dargestellt. Das berührungsempfindliche Flachdisplay 2 weist eine Bedienseite 3 auf, welche zu einem Bediener gerichtet ist. Das Flachdisplay 2 ist durch einen metallischen Rahmen 4 eingefasst. In der linken oberen Ecke des Bediengerätes 1 ist eine Leseeinheit 5 in den metallischen Rahmen 4 des Bediengerätes 1 integriert. Unter einer Deckfolie 10, welche als eine Designfolie mit integrierter Folientastatur 20 ausgestaltet ist, ist die Flachspulenantenne 5a mit einer Leiterplatte 5b angeordnet (siehe FIG 2 oder FIG 4). Will sich nun ein Bediener mit einer Ausweiskarte in RFID-Technik an dem Bediengerät 1 anmelden, so braucht er seine Ausweiskarte nur in die obere linke Ecke des Bediengerätes 1 halten und kann sich somit automatisch an dem Bediengerät 1 anmelden.According to the FIG. 1 An operating device 1 with a touch-sensitive flat display 2 is shown. The touch-sensitive flat display 2 has an operating side 3, which is directed towards an operator. The flat display 2 is surrounded by a metallic frame 4. A reading unit 5 is integrated in the metallic frame 4 of the operating device 1 in the upper left corner of the operating device 1. The flat coil antenna 5a with a printed circuit board 5b is arranged under a cover film 10, which is designed as a design film with an integrated film keyboard 20 (see FIG 2 or FIG 4 ). If an operator now wants to log on to the operating device 1 using an RFID card, he only needs to hold his ID card in the upper left corner of the operating device 1 and can thus log on to the operating device 1 automatically.

Mit der FIG 2 ist das in FIG 1 gezeigte Bediengerät 1 ohne die Deckfolie 10 dargestellt. Es wird der Blick frei auf die Leseeinheit 5 bzw. die Flachspulenantenne 5a. Links und rechts der Flachspulenantenne 5a bzw. oberhalb und unterhalb der Flachspulenantenne 5a ist eine erste Fläche 11 und eine zweite Fläche 12 angeordnet. Die erste Fläche 11 und die zweite Fläche 12 sind als eine Ferrit-Folie ausgestaltet. Mit der Ferrit-Folie erreicht man eine Verbesserung der Energie- und Datenübertragung bei einem RFID-System.With the FIG 2 is that in FIG. 1 shown control device 1 without the cover sheet 10. There is a clear view of the reading unit 5 or the flat coil antenna 5a. A first surface 11 and a second surface 12 are arranged to the left and right of the flat coil antenna 5a and above and below the flat coil antenna 5a. The first surface 11 and the second surface 12 are designed as a ferrite foil. The ferrite foil improves energy and data transmission in an RFID system.

Mit der FIG 3 ist der in den metallischen Rahmen 4 integrierte Hohlraum 6 dargestellt. Über dem Hohlraum 6 ist üblicherweise die Flachspulenantenne 5a (sieh FIG 2) angeordnet. Der Hohlraum 6 weist eine nach vorne gerichtete Öffnung 7 auf. Der Hohlraum 6 ist ein konstruktiver Bestandteil des metallischen Rahmens 4 und die zur Bedienseite 3 gerichtete Öffnung 7, wird im zusammengebauten Zustand durch die Flachspulenantenne 5a und die darüber liegende Deckfolie 10 abgedeckt.With the FIG 3 the cavity 6 integrated into the metallic frame 4 is shown. The flat coil antenna 5a (see FIG 2 ) arranged. The cavity 6 has a forward opening 7. The cavity 6 is a structural component of the metallic frame 4 and the opening 7 directed towards the operating side 3 is covered in the assembled state by the flat coil antenna 5a and the cover film 10 lying above it.

Mit der FIG 4 ist ein Schnitt durch den Hohlraum 6 dargestellt. Der Hohlraum 6 wird durch die Flachspulenantenne 5a bzw. die Leiterplatte 5b verdeckt. Um eine weitere optimierte Datenübertragung und Sende- und Energieübertragung zu erreichen, ist die Leiterplatte 5b über dem Hohlraum 6 in der Öffnung 7 derart angeordnet, dass die Flachspulenantenne 5a zum Teil in der Deckfolie 10 und zum Teil in dem Rahmen 4 angeordnet ist. Die Deckfolie 10 ist an der Stelle der Öffnung 7 dementsprechend dünner ausgeprägt. Links und rechts der Flachspulenanordnung 5a bzw. der Leiterplatte 5b liegt unter der Deckfolie 10 eine dünne erste Ferritfolienfläche 11 und eine dünne zweite Ferritfolienfläche 12. Die Ferritfolie hat ca. eine Dicke von 0,2 mm.With the FIG 4 a section through the cavity 6 is shown. The cavity 6 is covered by the flat coil antenna 5a or the printed circuit board 5b. In order to achieve a further optimized data transmission and transmission and energy transmission, the circuit board 5b is arranged above the cavity 6 in the opening 7 in such a way that the flat coil antenna 5a is arranged partly in the cover film 10 and partly in the frame 4. The cover film 10 is accordingly thinner at the location of the opening 7. To the left and right of the flat coil arrangement 5a or the printed circuit board 5b there is a thin first ferrite foil surface 11 and a thin second ferrite foil surface 12 under the cover foil 10. The ferrite foil has a thickness of approximately 0.2 mm.

Mit der der FIG 5 ist in einem Ausschnitt die Rückansicht auf eine Deckfolie 10 dargestellt, welche als eine Design-Folie ausgestaltet ist. An der Stelle, wo die Deckfolie 10 die Öffnung 7 bzw. den Hohlraum 6 in dem metallischen Rahmen 4 überdeckt, ist rückseitig auf die Deckfolie 10 die erste Fläche 11 aus Ferrit-Folie und die zweite Fläche 12 ebenfalls aus Ferrit-Folie aufgebracht. Bei einer Größe einer RFID-Antenne von ca. 27,5 mm x 30 mm besteht zwischen den beiden FerritFolienflächen 11,12 ein Abstand von 30 mm und die erste Ferrit-Folienfläche 11 sowie die zweite Ferrit-Folienfläche 12 weist die Maße eine Breite von ca. 14 mm x 30 mm auf.With the FIG 5 the rear view of a cover film 10 is shown in a detail, which is designed as a design film. At the point where the cover film 10 covers the opening 7 or the cavity 6 in the metallic frame 4, the first surface is on the back of the cover film 10 11 made of ferrite foil and the second surface 12 also made of ferrite foil. With a size of an RFID antenna of approx. 27.5 mm x 30 mm, there is a distance of 30 mm between the two ferrite foil surfaces 11, 12 and the first ferrite foil surface 11 and the second ferrite foil surface 12 have a width of the dimensions approx. 14 mm x 30 mm.

Gemäß der FIG 6 ist der Hohlraum 6 nochmals in einer Schnittdarstellung abgebildet. Als vorteilhaft für die Datenübertragung hat sich eine Tiefe T des Hohlraums von 5 mm an herausgestellt. According to the FIG 6 the cavity 6 is shown again in a sectional view. A depth T of the cavity of 5 mm has proven to be advantageous for the data transmission.

Claims (6)

  1. Operating device (1) having a touch-sensitive flat panel display (2), wherein a side of the flat panel display (2) directed at an operator forms an operating side (3), having a metal frame (4) in which the flat panel display (2) is arranged and having a contactless reading unit (5), wherein a flat coil antenna (5a) of the reading unit (5) is arranged above a cavity (6), wherein the cavity (6) is a constructional component of the metal frame (4) and has an opening directed at the operating side (3), wherein the flat coil antenna (5a) is in this case arranged above the opening (7) such that it covers it,
    characterised in that a surface (11, 12) made of ferrite membrane is in each case arranged on the frame (4) to the left and right of the opening (7), wherein a cover membrane (10) is arranged on the metal frame (4) and the surfaces made of ferrite membrane (11, 12) lie between the metal frame (4) and the cover membrane (10), and in that the flat coil antenna (5a) is arranged with a printed circuit board (5b) under the cover membrane (10).
  2. Operating device (1) according to claim 1, wherein a membrane keyboard (20) is integrated in the cover membrane (10).
  3. Operating device (1) according to claim 1 or 2, wherein the reading unit (5) is designed as an RFID reading unit.
  4. Operating device (1) according to one of claims 1 to 3, wherein the flat coil antenna (5a) is integrated in a printed circuit board (5b) and the cavity (6) is potted with a nonconductive material.
  5. Operating device (1) according to one of claims 1 to 4, wherein the cavity (6) has a depth (T) of approximately 5 mm.
  6. Operating device (1) according to one of claims 1 to 5, wherein the cover membrane (10) at the location of the opening (7) is formed so as to be thinner than the remaining cover membrane (10) covering the frame (4), such that the flat coil antenna (5a) is arranged partly in the cover membrane (10) and partly in the frame (4).
EP16179497.9A 2016-07-14 2016-07-14 Operating device with a touch-sensitive flat panel display Active EP3270459B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16179497.9A EP3270459B1 (en) 2016-07-14 2016-07-14 Operating device with a touch-sensitive flat panel display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16179497.9A EP3270459B1 (en) 2016-07-14 2016-07-14 Operating device with a touch-sensitive flat panel display

Publications (2)

Publication Number Publication Date
EP3270459A1 EP3270459A1 (en) 2018-01-17
EP3270459B1 true EP3270459B1 (en) 2020-01-15

Family

ID=56550035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16179497.9A Active EP3270459B1 (en) 2016-07-14 2016-07-14 Operating device with a touch-sensitive flat panel display

Country Status (1)

Country Link
EP (1) EP3270459B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8138977B2 (en) * 2007-08-07 2012-03-20 Apple Inc. Antennas for handheld electronic devices
DE202009015620U1 (en) 2009-11-18 2010-02-11 Ads-Tec Gmbh Thin client computer with a contactless reader
US9215752B2 (en) * 2013-03-11 2015-12-15 Google Technology Holdings LLC Electronic device with through-display near field communication capability

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3270459A1 (en) 2018-01-17

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