User interface for a touch screen

• US 9,152,258 B2
• Filed: 01/20/2013
• Issued: 10/06/2015
• Est. Priority Date: 06/19/2008
• Status: Expired due to Fees

• Current Assignee: Neonode, Inc.
• Original Assignee: Neonode, Inc.
• Inventors: Behdasht, Remo, Henriksson, Carl Richard, Eriksson, Thomas, Shain, Joseph, Jansson, Anders, Kvist, Niklas, Pettersson, Robert, Sparf, Lars, Karlsson, John
• Primary Examiner(s): Johnson, Allison
• Assistant Examiner(s): CHOWDHURY, AFROZA Y
• Application Number:
  US13/745,819
• Publication Number:
  US 20130127765A1
• Time in Patent Office: 989 Days
• Field of Search: 345/173, 345/175, 345/179, 178/18.09
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386
• CPC Class Codes: G06F 3/0428 by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual sensing beam interruptions in a planar beam grid of an optical touch-screen G06F3/0421
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A non-transitory computer readable medium storing instructions which, when executed by a processor of an electronic device that includes a touch sensitive and pressure sensitive display, cause the processor to enable a user interface of the electronic device, by which a glide gesture along the display and an amount of pressure applied to the display both generate the same user interface command.

Claims

1. A touch screen, comprising:

a housing;

a display mounted in said housing;

a touch sensor, mounted in said housing and connected to said display, for dynamically sensing a current location of an object that is touching said display;

a pressure sensor, mounted in said housing and connected to said display, for dynamically sensing a current relative pressure being applied by the object to said display,

wherein said touch sensor and said pressure sensor comprise;

a shared plurality of light emitters below said display in said housing, for emitting light beams across said display; and

a shared plurality of light receivers below said display in said housing, for receiving the emitted light beams; and

a processor, mounted in said housing and connected to said touch and pressure sensors and to said display, for (i) identifying the current location of the object touching said display based on at least two of said light receivers receiving less than an expected amount of light from beams emitted by said light emitters that cross that location, (ii) detecting the object gliding along said display based on a time series of such identified current locations, (iii) detecting an increase of pressure being applied by the object to said display based on increased amounts of light arriving at the remaining light receivers from beams emitted by said light emitters that cross identifiable locations on said display at which the object is not currently located, (iv) enabling a scroll-by-glide user interface whereby the processor performs a scroll operation in response to detecting the object gliding along said display via said touch sensor, (v) enabling a scroll-by-press user interface whereby the processor continues the scroll operation in response to detecting a current relative pressure being applied by the object to said display via said pressure sensor, and (vi) for enabling a transition from the scroll-by-glide interface to the scroll-by-press interface in response to the object gliding over to an edge of said display.

2. The touch screen of claim 1 wherein said display is flexibly mounted in said housing in such a way that the amounts of light received by said light receivers change when said display moves within said housing.

3. The touch screen of claim 1 wherein said display comprises a flexible material that bends resiliently in response to applied pressure in such a way that the amounts of light received by said light receivers change when said flexible material bends.

4. The touch screen of claim 1 wherein said pressure sensor senses multiple levels of relative pressure being applied by the object to said display, and wherein said processor dynamically adjusts the scroll speed of the scroll operation during activation of the scroll-by-press user interface based on the level of relative pressure currently sensed by said pressure sensor.

8. The touch screen of claim 1, wherein the edge of said display is devoid of graphics representing the scrolling.

5. A non-transitory computer readable medium storing instructions which, when executed by a processor of an electronic device that comprises a housing in which is mounted a touch sensitive and pressure sensitive display, a shared plurality of light emitters, below the display in the housing, for emitting light beams across the display, and a shared plurality of light receivers, below the display in the housing, for receiving the emitted light beams, cause the processor (i) to identify a current location of an object touching the display based on at least two of the light receivers receiving less than an expected amount of light from beams emitted by the light emitters that cross that location, (ii) to detect the object gliding along the display based on a time series of such identified current locations, (iii) to detect an increase of pressure being applied by the object to the display based on increased amounts of light arriving at the light receivers from beams emitted from the light emitters that cross identifiable locations on the display at which the object is not currently located, (iv) to enable a scroll-by-glide user interface whereby the processor performs a scroll operation in response to detecting the object gliding along the display, (v) to enable a scroll-by-press user interface whereby the processor performs a scroll operation in response to detecting a current relative pressure being applied by the object to the display, and (vi) to enable a transition from the scroll-by-glide interface to the scroll-by-press interface in response to detecting the object gliding to an edge of the display.

6. The non-transitory computer readable medium of claim 5, wherein the user interface dynamically adjusts the scrolling speed in accordance with the amount of current relative pressure applied to the display during activation of the scroll-by-press user interface.

7. The non-transitory computer readable medium of claim 6, wherein greater relative pressures applied to the display during activation of the scroll-by-press user interface correspond to slower scroll speeds.