• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a projected-capacitive touchscreen (1) having an imaging layer (2), a sensor layer (3) and a contact layer (4), which has an outer surface (5) and an inner surface (6). The sensor layer (3) is arranged on the side of the inner surface (6) of the contact layer (4) and when touching the outer surface (5) with a Berührorgan (8) is the contact (7) of the sensor layer (3) through the thickness of Touching layer (4) can be measured and evaluated. From the outer surface (5) of the contact layer (4), at least one guideway (9) for the contact element (8) is machined out of the contact layer (4) in the region of the sensor layer (3) and the imager layer (2).
    公开号:AT518250A4
    申请号:T50225/2016
    申请日:2016-03-17
    公开日:2017-09-15
    发明作者:Ing Günter Schuster Dipl
    申请人:Bernecker + Rainer Industrie-Elektronik Ges M B H；
    IPC主号:
    专利说明:

    touchscreen
    The invention relates to a touch screen with an imager layer, a sensor layer and a contact layer, which has an outer surface and an inner surface, wherein the sensor layer is disposed on the inner surface side of the contact layer, and wherein touching the outer surface with a Berührorgan the contact from the sensor layer through the thickness of the contact layer can be measured and evaluated. Furthermore, the invention relates to a control panel for a machine control.
    Touchscreens are increasingly being used for control panels for machine control. This is made possible in particular by the development of so-called projected capacitive touch screens (or PCAP touchscreens), since these can be built with a thick and stable front glass, which is also suitable for use in industrial environments and protects the sensitive electronics of the control panels. Practically, the thickness of the front glass is limited to a maximum of about 5-6 mm due to the sensitivity of the conventionally used PCAP sensor layers, but sensor layers have been developed which can even handle glass thicknesses of up to 20 mm.
    Advantageous in the use of touch screens for control panels is their flexible usability, since the type and arrangement of the switching and / or display elements on the touch screen are practically arbitrarily designed. As a disadvantage, however, the lack of haptic properties have been found in practice, since the outer surface of the contact layer is smooth and even. The touch layer is generally made of glass or a comparable transparent material that has no haptic characteristics.
    The present invention has for its object to provide a touch screen of the type mentioned above, in particular a projected capacitive touch screen, which overcomes the disadvantages of the prior art, and allows haptic operability, without the benefits of flexible design of the user interface, for example in one Control panel to significantly affect.
    These and other objects are achieved by a touch screen of the type mentioned above, in which at least one guideway for the contact element is worked out of the contact layer from the outer surface of the contact layer in the region of the sensor layer and the imager layer. Known PCAP touch sensors or displays of any manufacturer can be used for the sensor layer and / or the imager layer. The PCAP touch sensor can be evaluated by a touch controller in a conventional manner and the data can be further processed in a computing unit.
    Since a human finger is usually used as the contact organ, the width of the guide track is between 0.7 cm and 2 cm, preferably between 1 cm and 1.5 cm and particularly preferably between 1.2 cm and 1.3 cm and a maximum depth between 0.5 mm and 1 mm, preferably between 0.7 mm and 0.9 mm proved to be particularly advantageous because this accommodates the most ergonomic conditions.
    Advantageously, the thickness of the contact layer may be 3 mm or more. This allows the production of highly stable and insensitive touch screens, which also in the areas in which the thickness of the contact layer is limited by guideways, sufficient stability is ensured. As a material, a conventional front glass pane can be used for the contact layer, which is preferably glued optically over the whole area with the sensor layer. The guideways are ground into the front glass pane on the outer surface side.
    In an advantageous embodiment, the guideway may have a circular or oval course, wherein the maximum outer diameter of the round or oval guideway corresponds to the dimensions of an operable with one or two fingers rotary knob. This requires minimal changeover for a user accustomed to conventional rotary wheels. A slightly oval design of the guideway, in conjunction with a three-dimensional representation of the rotary wheel to improve the visual impression and usability.
    Preferably, in a further advantageous embodiment of the invention in the guideway at least partially a haptic tactile surface structure may be arranged. This results in a haptic feedback for the user when using the guideway associated switching element. For example, the surface structure in the guideway may be partially or completely frosted or etched, or have, for example, transverse grooves or planar structural patterns, which represents an optical design feature in addition to the haptic feelability.
    In a further advantageous embodiment of the invention, the contact layer may be partially back-printed on its inner surface. This allows the production of touchscreens with sometimes invariable design features (in the printed areas), which can then be supplemented by variable areas in which the representation is defined by the imager layer.
    The invention further relates to a control panel for a machine control, wherein the control panel as a user interface has a touch screen of the type described above.
    The subject invention will be explained in more detail below with reference to Figures 1 to 3, which show by way of example, schematically and not by way of limitation advantageous embodiments of the invention. It shows
    1 is a schematic sectional view through a touch screen according to the invention,
    Fig. 2 is a perspective view of a partial cut shown touch screen, and
    Fig. 3 shows a control panel for a machine control.
    Fig. 1 shows the essential elements of a touch screen 1 according to the invention, which is designed as a projected capacitive touch screen. The layer structure of such a touch screen 1 has at least one touch layer 4, a sensor layer 3 and an imaging layer 2. It is known in the art that other layers may also be included in the structure, such as polarizing or filtering layers. Such layers can also be used in the touchscreen according to the invention, but they are not shown in FIG. 1 for the sake of simplicity. Also on the presentation of other well-known design and assembly elements, such as support frame, housing, fasteners or adhesive layers was omitted for reasons of clarity. However, such elements are readily known to those skilled in the art.
    The touch layer 4 is the outermost layer of the touch screen 1 and is generally made of tempered and particularly break resistant special glass. When used with mobile devices where weight is particularly important, the touch layer is usually made as thin as possible, for example between 0.5 and 0.7 mm, which often causes these touchscreens to have a significant tendency to break. For industrial applications, such as control panel, however, a significantly higher resistance to breakage is required, wherein the weight plays an essential role only if the control panel is to be portable. For fixedly mounted control panels, it is preferable to make the contact layer 4 as stable (and therefore generally as thick) as possible, with the maximum thickness being limited by the sensing capabilities of the sensor layer 3.
    As projected-capacitive touch screens are referred to, in which the contact layer 4 has a free outer surface 5, which is touched by the Berührorgan 8, and an inner surface 6, which is connected to the sensor layer 3 comprises. This means that the measurement of a touch 7 by a Berührorgan 8 through the contact layer 4 is carried out. In the manufacture of the touch screen 1, the contact layer 4 is generally adhesively bonded to the sensor layer 3 in a planar manner, with a transparent or transparent adhesive being used in order not to impair the representation of the imager layer 2 arranged below the (likewise transparent) sensor layer 3.
    The sensor layer 3 is generally made of a transparent film which is adhered or laminated on the inner surface 6 of the contact layer 4. At the backside of the sensor layer, the imager layer 2 is arranged, whereby all common types of thin-layer displays can be used, for example TFT, LCD or OLED imager layers.
    As is generally customary, the touch screen 1 is used by touching the outer surface 5 with a contact element 8, typically one or more fingers (contact element 8 in FIG. 1) or a stylus (contact element 8 'in FIG. 1). , With the Berührorgan 8 individual, displayed with the imaging layer 2 elements can be tapped, which can be interpreted as clicking on a switching element or as a press of a pressure switch, for example. However, the operation of the touch screen 1 may also include more complex gestures, for example with one or more fingers. For special applications, such as control panels for machine controls, the inner surface 6 of the contact layer 4 may be printed or backed off, for example to provide a continuous and invariable structure for the control panel. Instead of this printing, it is of course also possible to arrange a separate layer with the printing between the contact layer 4 and the sensor layer 3 or between the sensor layer 3 and the image-forming layer 2.
    In the outer surface 5 of the contact layer 4 guideways 9, 9 'are provided at certain points. These guideways 9, 9 'are preferably milled into the outer surface 5 during manufacture and have a width and depth which provide a guide for the contact element 8, 8'.
    When the touch screen is to be operated with one finger (touch element 8), a width between 0.7 cm and 2 cm, preferably about 1.2 cm -1.3 cm, at a maximum depth between 0.5 mm and 1 have mm, preferably about 0.7 mm to 0.9 mm, found to be advantageous. However, the dimensions of the guideways 9, 9 'can also be optimized for other Berührorgane, such as designed as a stylus Berührorgan 8' in Fig. 1.
    In Fig. 2 in a partially sectioned perspective view of the touch screen 1, two particularly preferred embodiments of the guideways 9, 9 'are shown, namely once with a circular course (guideway 9) and once with a straight course (guideway 9').
    The straight guideway 9 'can be used, for example, for the implementation of sliders. The round guideway 9, however, can be used advantageously for the implementation of rotary encoders.
    In particular, the integration of rotary controls in touch screen operating concepts is problematic in terms of usability, since without haptic guide aids a "blind" operation of the rotary control is hardly possible without accidentally leaving the field of the rotary knob. For this reason, rotary control dials are still arranged as a separate element next to the actual touch screen in conventional control panels. However, this has the disadvantage that the knob then always has the same design and no different representation is possible.
    By means of the concept according to the invention, the properties of regulators, e.g. Rotary or linear regulator, arbitrarily design and display animated, with only the position of the controller on the touch screen 1 is determined by the position of the guideway 9. It is also advantageous that the area (s) provided by the guideways 9, 9 'for the linear and / or rotary controller (s) can be used for a control, but this is not absolutely necessary. As a result, depending on the operating concept and / or machine status, different control surfaces can be provided which can or may not use the guideways 9, 9 'in different ways and can be integrated into the concept.
    FIG. 3 shows an exemplary control panel 10, for example for a machine control, which is provided with the touchscreen 1 according to the invention. The touch screen 1 has a circular guideway 9 and two straight guideways 9 ', 9 ". The circular guideway 9 can be used, for example, in conjunction with a rotary control and the straight guideways 9 ', 9 "can accordingly be used, for example, for sliders. For this purpose, only the respective guide track 9, 9 ', 9 "must be deposited with a corresponding representation of a sliding or rotary control, and the operation of the controller is measured and evaluated with the touch screen in a known manner. A circular moving along of the Berührorgans 8 in the circumferential track of the guideway 9 can be interpreted, for example, as a "turn" of the knob shown below this guideway 9. Accordingly, a swipe along the guideways 9 ', 9 "may be interpreted as shifting a slider, which may accordingly be displayed on the touch screen. Alternatively or additionally, the setting of the rotary or slide control can be displayed as a value on the touchscreen, for example as a percentage.
    The person skilled in the art can use the teachings of this description to provide a touch screen with numerous differently configured guideways, wherein the number, shape and arrangement of the guideways on the touchscreen surface can be configured as desired in accordance with the respective specifications. In addition to circular, oval and straight shapes, other closed or open shapes can be performed. For example, curved, arcuate, angled and / or wavy or jagged guideways can be used if this is beneficial to the purpose.
    Touchscreen 1 Imager layer 2 Sensor layer 3 Touch layer 4 Outer surface 5 Inner surface 6 Touch 7 Touch element 8 Guideway 9 Control panel 10
    权利要求:
    Claims (7)
    [1]
    claims
    A touchscreen (1) comprising an imager layer (2), a sensor layer (3) and a touch layer (4) having an outer surface (5) and an inner surface (6), the sensor layer (3) being on the inner surface ( 6) of the contact layer (4) is arranged, and wherein the touch (7) of the sensor layer (3) through the thickness of the contact layer (4) is measurable and evaluable by touching the outer surface (5) with a Berührorgan (8), characterized in that from the outer surface (5) of the contact layer (4) in the region of the sensor layer (3) and the imager layer (2) at least one guideway (9) for the Berührorgan (8) from the contact layer (4) is worked out.
    [2]
    2. Touchscreen (1) according to claim 1, characterized in that the guide track (9) has a width between 0.7 cm and 2 cm, preferably between 1 cm and 1.5 cm and particularly preferably between 1.2 cm and 1, 3 cm, and has a maximum depth between 0.5 mm and 1 mm, preferably between 0.7 mm and 0.9 mm.
    [3]
    3. Touchscreen (1) according to claim 1 or 2, characterized in that the thickness of the contact layer (4) is 3 mm or more.
    [4]
    4. Touchscreen (1) according to one of claims 1 to 3, characterized in that the guide track (9) has a circular or oval course, wherein the maximum outer diameter of the round or oval guide track (9) has the dimensions of one with one or two Finger operable rotary wheel corresponds.
    [5]
    5. touchscreen (1) according to one of claims 1 to 4, characterized in that in the guideway (9) at least partially a haptic tactile surface structure is arranged.
    [6]
    6. touchscreen (1) according to one of claims 1 to 5, characterized in that the contact layer (4) on its inner surface (6) is partially backprinted.
    [7]
    7. control panel (10) for a machine control, characterized in that the control panel (10) as a user interface a touch screen (1) according to one of claims 1 to 6.
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    同族专利:
    公开号 | 公开日
    US20170269716A1|2017-09-21|
    CA2961000A1|2017-09-17|
    AT518250B1|2017-09-15|
    EP3220244A1|2017-09-20|
    EP3220244B1|2020-06-17|
    引用文献:
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    法律状态:
    2018-03-15| HC| Change of the firm name or firm address|Owner name: B&R INDUSTRIAL AUTOMATION GMBH, AT Effective date: 20180205 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50225/2016A|AT518250B1|2016-03-17|2016-03-17|touchscreen|ATA50225/2016A| AT518250B1|2016-03-17|2016-03-17|touchscreen|
    EP17156646.6A| EP3220244B1|2016-03-17|2017-02-17|Touch screen|
    CA2961000A| CA2961000A1|2016-03-17|2017-03-15|Touchscreen|
    US15/460,847| US20170269716A1|2016-03-17|2017-03-16|Touchscreen|
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