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WO2007110803A2 - Interactive display device - Google Patents

Interactive display device Download PDF

Info

Publication number
WO2007110803A2
WO2007110803A2 PCT/IB2007/050948 IB2007050948W WO2007110803A2 WO 2007110803 A2 WO2007110803 A2 WO 2007110803A2 IB 2007050948 W IB2007050948 W IB 2007050948W WO 2007110803 A2 WO2007110803 A2 WO 2007110803A2
Authority
WO
WIPO (PCT)
Prior art keywords
display device
interactive display
display panel
symbol
activation zone
Prior art date
Application number
PCT/IB2007/050948
Other languages
French (fr)
Other versions
WO2007110803A3 (en
Inventor
Peter T. S. K. Tsang
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2007110803A2 publication Critical patent/WO2007110803A2/en
Publication of WO2007110803A3 publication Critical patent/WO2007110803A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0238—Programmable keyboards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42208—Display device provided on the remote control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42222—Additional components integrated in the remote control device, e.g. timer, speaker, sensors for detecting position, direction or movement of the remote control, microphone or battery charging device

Definitions

  • the invention relates to an interactive display device with means for a touchless input and to an apparatus comprising such a display device.
  • a display system with a touch screen is for example disclosed in the
  • WO 2003/073254 A2 which is incorporated into the present application by reference.
  • a symbol indicating an optimal gesture and the distance of the user's hand with respect to a reference point are displayed on a computer screen in order to assist the user in making correct inputs. While this system may be appropriate for computers, it is too complicated and expensive for small displays in e.g. devices of consumer electronics.
  • the interactive display device comprises the following components: a) A display panel, wherein at least one symbol is incorporated into the structure of said display panel.
  • the "symbol” may comprise a graphics, an icon, numbers and/or letters.
  • the "incorporation" of the symbol into the structure of the display panel means that said structure has certain deviations from its normal (typically homogeneous) composition which have the shape of the symbol.
  • the material of the display panel may for example comprise a staining, a changed crystal structure or simply a cavity in the shape of the symbol.
  • a lighting unit for selectively lighting the symbol of the display panel thus making it clearly visible.
  • the symbol may typically be only faintly visible or even be invisible if it is not lighted by the lighting unit.
  • a sensor arrangement for detecting the presence of an object, preferably of the finger tip of a user, in a predetermined activation zone. Said activation zone is typically the space adjacent to the display panel.
  • a controller for example realized by an analog and/or digital circuit or a microcontroller for activating the lighting unit if the sensor array has detected an object in the activation zone.
  • the described interactive display device provides a user with a feedback by lighting the symbol if the user points into the associated activation zone. If a touchless input shall be implemented by the sensor arrangement, said feedback helps to prevent the user from actually contacting the display panel which might leave undesired fingerprints on the panel.
  • the interactive display device may in the most simple case comprise just one symbol with one associated lighting unit, it will normally comprise two or more symbols incorporated into the display panel at different locations, wherein each of said symbols can selectively be lighted by an associated lighting unit if an object has been detected in an associated activation zone.
  • various inputs can be selected and activated by a user, for example the functions stop, play/pause, forward, backward etc. on the input of a CD player or the like.
  • the activation zone may be located completely independent of the associated symbol.
  • the activation zone is however the region above the display panel which is closest to the associated symbol. Thus there is an intuitive coupling between the activation zone and the symbol.
  • the display panel typically comprises a transparent plate, wherein said plate may for example be made from glass or plastics.
  • the display panel may further comprise a stack of two or more transparent plates. Different symbols can then be disposed in different layers of the display panel and can be lighted selectively by associated lighting units.
  • the symbol may be engraved (preferably by laser-cutting) into the display panel.
  • Such an embodiment can be realized in a cost-effective way in connection with the plate of glass or plastics mentioned above. If the display panel comprises a stack of two or more transparent plates, each of these plates may be engraved with (different) symbols.
  • the lighting unit optionally comprises a light emitter together with a collimating optics, for example a collimator lens.
  • the collimating optics conducts the light emission into a desired direction and may for example distribute it in the layer of the display panel.
  • the light emitter may be realized by light emitting diodes (LED) which are cost- effective and easy to use.
  • Preferred embodiments of the sensor arrangement allow a touchless detection of the object and may for instance comprise capacitive sensors which detect changes in an electric field induced by an object, or photosensors which detect changes (interruptions, reflections etc.) of an illumination caused by an object.
  • the controller may be adapted to initiate further processes if a predetermined object behavior is detected.
  • the predetermined object behavior may for example be a stay of the object in the activation zone for more than a given period of time.
  • the initiated processes may include a visual feedback to the user showing that the object behavior was detected, wherein the feedback may for example include a flashing illumination of the symbol by the lighting unit.
  • the invention further relates to an apparatus comprising a display device of the kind described above.
  • Said apparatus may for example be a device of consumer electronics like a remote-control, a television apparatus, an audio device like a CD player and a radio, or a household appliance like a refrigerator or a microwave.
  • the apparatus may be a medical device like an infusion pump or a diagnostic device, where a touchless input has the advantage to avoid contact of the user with non-sterile objects.
  • the interactive display device 1 shown in the Figure may for example be used as input unit for a remote control of an apparatus like a TV or a CD player.
  • the display device 1 comprises a flat glass plate 4 which is laser engraved with information that needs to be displayed, particularly with different texts/icons 2, 3 indicating the available control functions STOP, PLAY etc. of the apparatus.
  • the information may be engraved in different layer thickness and positioned in different depths within the glass. This separates the information from each other in the x, y and z planes and gives a 3-D effect.
  • RGB LEDs 7 combined with collimators 8 are embedded in the glass such that their light can be coupled via the collimators as a narrow light sheet into the glass plate 4 and only lights up the text in its path (note that the surface of the panel 4 has been partially removed in the Figure to show the lighting units).
  • the (high-) lighted information 2 becomes clearly visible and distinguished from the not lighted information 3.
  • the not lighted information 3 is still faintly visible, though it might also be completely invisible.
  • the glass plate 4 further carries on its surface at the left and right border 5 an array of sensors consisting of sensor pairs 6a, 6b disposed at opposite borders. These sensors can be of capacitive type (e.g.
  • segmented copper foil strips under the rim cover to detect any disturbance in the electric field, or they can be an array of photo-detectors working in tandem with emitters to look at reflections or breaks in a light beam.
  • the sensors are positioned to look at different defined regions above the glass plate 4 and can thus detect the (y-) position of an object above the glass, particularly of the finger of a user.
  • the aforementioned sensors 6a, 6b are coupled to a controller (not shown) which is adapted to switch that LED 7 on that corresponds to the line above which the presence of e.g. a finger has been detected.
  • the user thus gets an optical feedback that the pointing movement has been detected. This allows to avoid a direct contact of the finger with the glass plate 4 which would leave undesirable finger marks.
  • a controller not shown
  • the holding of a finger for a time over a certain area may cause the associated function (for example playing of a CD player) to be activated, wherein said activation can optionally be indicated by flashing the lighted area.
  • the invention thus uses well-known laser methods to cut out text or icons inside a glass or plastic plate. Furthermore, sensors and lighting effects are combined with the panel to make a simple interactive control panel without the user having to touch the plate itself.
  • the panel described here is totally transparent where there is no text, which means 100% visibility and no wires encapsulated into the glass for the electronics.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention relates to an interactive display device (1) comprising a glass plate (4) into which different symbols (2, 3) are engraved by laser cutting. The symbols (2, 3) are selectively lighted by associated lighting units consisting of LEDs (7) and collimators (8) if an object like the finger tip of a user has been detected by sensors (6a, 6b). Thus the user is provided with a feedback and needs not to touch the glass plate itself.

Description

Interactive display device
The invention relates to an interactive display device with means for a touchless input and to an apparatus comprising such a display device.
A display system with a touch screen is for example disclosed in the
WO 2003/073254 A2, which is incorporated into the present application by reference. In said system, a symbol indicating an optimal gesture and the distance of the user's hand with respect to a reference point are displayed on a computer screen in order to assist the user in making correct inputs. While this system may be appropriate for computers, it is too complicated and expensive for small displays in e.g. devices of consumer electronics.
Based on this situation it was an object of the present invention to provide a low-cost and robust interactive display device.
This objective is achieved by an interactive display device according to claim 1 and an apparatus according to claim 10. Preferred embodiments are disclosed in the dependent claims.
The interactive display device according to the present invention comprises the following components: a) A display panel, wherein at least one symbol is incorporated into the structure of said display panel. The "symbol" may comprise a graphics, an icon, numbers and/or letters. The "incorporation" of the symbol into the structure of the display panel means that said structure has certain deviations from its normal (typically homogeneous) composition which have the shape of the symbol. Thus the material of the display panel may for example comprise a staining, a changed crystal structure or simply a cavity in the shape of the symbol. b) A lighting unit for selectively lighting the symbol of the display panel thus making it clearly visible. The symbol may typically be only faintly visible or even be invisible if it is not lighted by the lighting unit. c) A sensor arrangement for detecting the presence of an object, preferably of the finger tip of a user, in a predetermined activation zone. Said activation zone is typically the space adjacent to the display panel. d) A controller (for example realized by an analog and/or digital circuit or a microcontroller) for activating the lighting unit if the sensor array has detected an object in the activation zone.
The described interactive display device provides a user with a feedback by lighting the symbol if the user points into the associated activation zone. If a touchless input shall be implemented by the sensor arrangement, said feedback helps to prevent the user from actually contacting the display panel which might leave undesired fingerprints on the panel.
While the interactive display device may in the most simple case comprise just one symbol with one associated lighting unit, it will normally comprise two or more symbols incorporated into the display panel at different locations, wherein each of said symbols can selectively be lighted by an associated lighting unit if an object has been detected in an associated activation zone. Thus various inputs can be selected and activated by a user, for example the functions stop, play/pause, forward, backward etc. on the input of a CD player or the like. In general, the activation zone may be located completely independent of the associated symbol. In a preferred embodiment, the activation zone is however the region above the display panel which is closest to the associated symbol. Thus there is an intuitive coupling between the activation zone and the symbol.
The display panel typically comprises a transparent plate, wherein said plate may for example be made from glass or plastics. The display panel may further comprise a stack of two or more transparent plates. Different symbols can then be disposed in different layers of the display panel and can be lighted selectively by associated lighting units.
The symbol may be engraved (preferably by laser-cutting) into the display panel. Such an embodiment can be realized in a cost-effective way in connection with the plate of glass or plastics mentioned above. If the display panel comprises a stack of two or more transparent plates, each of these plates may be engraved with (different) symbols.
The lighting unit optionally comprises a light emitter together with a collimating optics, for example a collimator lens. The collimating optics conducts the light emission into a desired direction and may for example distribute it in the layer of the display panel. The light emitter may be realized by light emitting diodes (LED) which are cost- effective and easy to use.
There are many different ways to realize the sensor arrangement for the detection of an object in the activation zone. Preferred embodiments of the sensor arrangement allow a touchless detection of the object and may for instance comprise capacitive sensors which detect changes in an electric field induced by an object, or photosensors which detect changes (interruptions, reflections etc.) of an illumination caused by an object.
In a further development of the invention, the controller may be adapted to initiate further processes if a predetermined object behavior is detected. The predetermined object behavior may for example be a stay of the object in the activation zone for more than a given period of time. The initiated processes may include a visual feedback to the user showing that the object behavior was detected, wherein the feedback may for example include a flashing illumination of the symbol by the lighting unit. The invention further relates to an apparatus comprising a display device of the kind described above. Said apparatus may for example be a device of consumer electronics like a remote-control, a television apparatus, an audio device like a CD player and a radio, or a household appliance like a refrigerator or a microwave. Moreover, the apparatus may be a medical device like an infusion pump or a diagnostic device, where a touchless input has the advantage to avoid contact of the user with non-sterile objects.
These and other aspects of the invention will be apparent from and elucidated with reference to the embodiment(s) described hereinafter. These embodiments will be described by way of example with the help of the single accompanying drawing which shows a principal sketch of an interactive display device according to the present invention. The interactive display device 1 shown in the Figure may for example be used as input unit for a remote control of an apparatus like a TV or a CD player. The display device 1 comprises a flat glass plate 4 which is laser engraved with information that needs to be displayed, particularly with different texts/icons 2, 3 indicating the available control functions STOP, PLAY etc. of the apparatus. The information may be engraved in different layer thickness and positioned in different depths within the glass. This separates the information from each other in the x, y and z planes and gives a 3-D effect.
On the left border of the glass plate 4, RGB LEDs 7 combined with collimators 8 are embedded in the glass such that their light can be coupled via the collimators as a narrow light sheet into the glass plate 4 and only lights up the text in its path (note that the surface of the panel 4 has been partially removed in the Figure to show the lighting units). Thus the (high-) lighted information 2 becomes clearly visible and distinguished from the not lighted information 3. Preferably, the not lighted information 3 is still faintly visible, though it might also be completely invisible. The glass plate 4 further carries on its surface at the left and right border 5 an array of sensors consisting of sensor pairs 6a, 6b disposed at opposite borders. These sensors can be of capacitive type (e.g. segmented copper foil strips under the rim cover) to detect any disturbance in the electric field, or they can be an array of photo-detectors working in tandem with emitters to look at reflections or breaks in a light beam. The sensors are positioned to look at different defined regions above the glass plate 4 and can thus detect the (y-) position of an object above the glass, particularly of the finger of a user.
The aforementioned sensors 6a, 6b are coupled to a controller (not shown) which is adapted to switch that LED 7 on that corresponds to the line above which the presence of e.g. a finger has been detected. The user thus gets an optical feedback that the pointing movement has been detected. This allows to avoid a direct contact of the finger with the glass plate 4 which would leave undesirable finger marks. Thus one of the main problems of using glass as a touch screen or control panel can be avoided.
According to a further development, the holding of a finger for a time over a certain area may cause the associated function (for example playing of a CD player) to be activated, wherein said activation can optionally be indicated by flashing the lighted area. The invention thus uses well-known laser methods to cut out text or icons inside a glass or plastic plate. Furthermore, sensors and lighting effects are combined with the panel to make a simple interactive control panel without the user having to touch the plate itself. The panel described here is totally transparent where there is no text, which means 100% visibility and no wires encapsulated into the glass for the electronics.
Finally it is pointed out that in the present application the term "comprising" does not exclude other elements or steps, that "a" or "an" does not exclude a plurality, and that a single processor or other unit may fulfill the functions of several means. The invention resides in each and every novel characteristic feature and each and every combination of characteristic features. Moreover, reference signs in the claims shall not be construed as limiting their scope.

Claims

CLAIMS:
1. Interactive display device (1), comprising a) a display panel (4) with at least one symbol (2, 3) incorporated into its structure; b) a lighting unit (7, 8) for selectively lighting the symbol (2, 3) of the display panel (4); c) a sensor arrangement (6a, 6b) for detecting the presence of an object in a predetermined activation zone; d) a controller for activating the lighting unit if the sensor array has detected an object.
2. The interactive display device (1) according to claim 1, characterized in that two or more symbols (2, 3) are incorporated into the display panel (4) at different locations, wherein each of said symbols (2, 3) can selectively be lighted by an associated lighting unit (7, 8) if an object has been detected in an associated activation zone.
3. The interactive display device (1) according to claim 1, characterized in that the activation zone is the region above the display panel (4) closest to the associated symbol (2, 3);
4. The interactive display device (1) according to claim 1, characterized in that the display panel comprises at least one transparent plate (4), preferably a plate made of glass or plastics.
5. The interactive display device (1) according to claim 4, characterized in that it comprises a stack of two or more transparent plates.
6. The interactive display device (1) according to claim 1, characterized in that the symbol (2, 3) is engraved into the display panel (4), preferably by laser-cutting.
7. The interactive display device (1) according to claim 1, characterized that the lighting unit comprises a light emitter, preferably a LED (7), and a collimating optics (8).
8. The interactive display device (1) according to claim 1, characterized in that the sensor arrangement is adapted for a touchless detection of an object and preferably comprises capacitive sensors (6a, 6b) or photosensors.
9. The interactive display device (1) according to claim 1, characterized in that the controller is adapted to initiate further processes if a predetermined object behavior is detected, particularly a stay of the object in the activation zone for more than a given period of time.
10. Apparatus comprising a display device (1) according to claim 1.
PCT/IB2007/050948 2006-03-24 2007-03-19 Interactive display device WO2007110803A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06111661 2006-03-24
EP06111661.2 2006-03-24

Publications (2)

Publication Number Publication Date
WO2007110803A2 true WO2007110803A2 (en) 2007-10-04
WO2007110803A3 WO2007110803A3 (en) 2007-12-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/050948 WO2007110803A2 (en) 2006-03-24 2007-03-19 Interactive display device

Country Status (1)

Country Link
WO (1) WO2007110803A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPE20120003A1 (en) * 2012-03-23 2013-09-24 Dmp Electronics Srl OUTDOOR PLATE WITH OPTICAL SENSOR

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030016253A1 (en) * 2001-07-18 2003-01-23 Xerox Corporation Feedback mechanism for use with visual selection methods
US20030063775A1 (en) * 1999-09-22 2003-04-03 Canesta, Inc. Methods for enhancing performance and data acquired from three-dimensional image systems
US20040159779A1 (en) * 2003-02-14 2004-08-19 Duff Michael J. Zero-force key activation keyboard with dynamic individual key illumination

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030063775A1 (en) * 1999-09-22 2003-04-03 Canesta, Inc. Methods for enhancing performance and data acquired from three-dimensional image systems
US20030016253A1 (en) * 2001-07-18 2003-01-23 Xerox Corporation Feedback mechanism for use with visual selection methods
US20040159779A1 (en) * 2003-02-14 2004-08-19 Duff Michael J. Zero-force key activation keyboard with dynamic individual key illumination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPE20120003A1 (en) * 2012-03-23 2013-09-24 Dmp Electronics Srl OUTDOOR PLATE WITH OPTICAL SENSOR

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