Stimuli sensitive display screen with multiple detect modes

• US 8,917,244 B2
• Filed: 06/11/2007
• Issued: 12/23/2014
• Est. Priority Date: 06/11/2007
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Grothe, Steven P.
• Primary Examiner(s): MARINELLI, PATRICK
• Application Number:
  US11/760,915
• Publication Number:
  US 20080303797A1
• Time in Patent Office: 2,752 Days
• Field of Search: 345156-183, 178 1801- 2004
• US Class Current: 345/173
• 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 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• 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

Abstract

According to an example embodiment a display screen includes a first sensor array that is operable to detect a first external stimulus that meets a first detection criteria, and a second sensor array that is operable to detect a second external stimulus that meets a second detection criteria, the second detection criteria quantitatively different from the first detection criteria.

Claims

1. A display screen, comprising:

a first sensor array that is operable to detect when an external stimulus that meets a first detection criteria;

a second sensor array that is operable to detect when the external stimulus meets a second detection criteria, the second detection criteria quantitatively different from the first detection criteria, wherein the external stimulus is detectable when the external stimulus meets both the first detection criteria and the second detection criteria and when it only meets the first detection criteria; and

a haptic feedback device coupled to the display screen which applies a first haptic feedback to the display screen in response to only the first sensor array detecting the external stimulus and which applies a second haptic feedback to the display screen, different from the first haptic feedback, in response to both the first sensor array detecting the external stimulus and the second sensor array detecting the external stimulus,

wherein the first and second sensor arrays belong to different types, the different types selected from the group consisting of capacitive-sensitive arrays, resistive-sensitive arrays, proximity-sensitive arrays, sound-sensitive arrays and light-sensitive arrays, and

wherein the first detection criteria comprises a first pressure that is applied against the display screen, and the second detection criteria comprises a second pressure, greater than the first pressure, that is applied against the display screen.

2. A method comprising the steps of:

detecting a stimulus in a region of a display screen using a first sensor array of the display screen when the stimulus meets a first detection criteria;

detecting the stimulus in the region of the display screen using a second sensor array of the display screen when the stimulus meets a second detection criteria, the second detection criteria quantitatively different from the first detection criteria, wherein the external stimulus is detectable when the external stimulus meets both the first detection criteria and the second detection criteria and when it only meets the first detection criteria;

applying a first haptic feedback to the display screen in response to only the first sensor array detecting the stimulus; and

applying a second haptic feedback to the display screen in response to both the first sensor array detecting the stimulus and the second sensor array detecting the stimulus,

wherein the first haptic feedback is different than the second haptic feedback,

wherein the first and second sensor arrays belong to different types, the different types selected from the group consisting of capacitive-sensitive arrays, resistive-sensitive arrays, proximity-sensitive arrays, sound-sensitive arrays and light-sensitive arrays, and

wherein the first detection criteria comprises of a first pressure that is applied against the region of the display screen, and the second detection criteria comprises of a second pressure, greater than the first pressure, that is applied against the region of the display screen.

3. A display system, comprising:

a processor;

a display screen coupled to the processor, the display screen substantially planar;

a first sensor network coupled to the processor, the first sensor network operable to detect when an object impinging a first plane meets a first detection criteria;

a second sensor network coupled to the processor, the second sensor network operable to detect when the object impinging a second plane meets a second detection criteria, the second detection criteria quantitatively different from the first detection criteria, wherein the external stimulus is detectable when the external stimulus a meets both the first detection criteria and the second detection criteria and when it only meets the first detection criteria; and

a haptic feedback device coupled to the display system which applies a first haptic feedback to the display system in response to only the first sensor network detecting the object and which applies a second haptic feedback to the display system, different from the first haptic feedback, in response to both the first sensor network and the second sensor network detecting the object,

wherein the first and second sensor arrays belong to different types, the different types selected from the group consisting of capacitive-sensitive arrays, resistive-sensitive arrays, proximity-sensitive arrays, sound-sensitive arrays and light-sensitive arrays, and

wherein the first detection criteria comprises of a first pressure that is applied against a surface of the display screen, and the second detection criteria comprises of a second pressure, greater than the first pressure, that is applied against the surface of the display screen.