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Force and location sensitive display

A technology of sensing touch and sensing components, applied in the field of input and output devices of electronic systems, which can solve the problems of being unable to track multiple contacts at the same time and only reporting a single point

Active Publication Date: 2007-11-14
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem with these technologies is that they can only report a single point even when multiple objects are placed on the sensing surface
That is, they cannot track multiple touchpoints simultaneously

Method used

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  • Force and location sensitive display
  • Force and location sensitive display
  • Force and location sensitive display

Examples

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Embodiment Construction

[0015] The following description has been made to enable any person skilled in the art to make and use the invention as claimed, and is provided for the specific examples discussed below, various modifications of which will be apparent to those skilled in the art. Thus, the appended claims are not limited to the disclosed embodiments, but are to be accorded the widest scope consistent with the principles and features disclosed herein.

[0016] Referring to FIG. 1 , a force and position display device 100 according to an embodiment of the present invention includes: a novel force and touch unit 105 , a display element 110 and a controller 115 . As shown, unit 105 is juxtaposed in front of display element 110 (from the perspective of user 120). For example, unit 105 may be laminated to the front of display element 110 . The illustrated display elements 110 include, but are not limited to, various types of liquid crystal displays ("LCDs"), plasma displays, and cathode ray tubes ...

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PUM

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Abstract

A unit to provide both force and location detection includes a first transparent substrate (having first and second sets of conductive traces oriented in a first direction), a second transparent substrate (having a third set of conductive traces oriented in a second direction) and a plurality of deformable members ( e.g ., rubber beads) arranged between the first and second transparent substrates. The first set of conductive traces, in combination with the conductive traces of the second transparent element, provide a capacitance signal representing where a user touches the display element. The second set of conductive traces, in combination with the conductive traces of the second transparent element, provide a capacitance signal representing the amount of force applied to the display element. When used with a display element ( e.g. , a LCD or CRT), an input-output unit capable of both location sensing and force sensing operations is provided.

Description

[0001] This application claims priority to U.S. Patent Application entitled "Force imaging Input Device and System," filed March 30, 2006, and U.S. Patent Application filed May 6, 2004, entitled "Multipoint Touchscreen," which is hereby These applications are incorporated by reference. technical field [0002] The present invention relates generally to electronic system input and output devices, and more particularly to a display device (output) that detects a user's touch and touch force (input). Background technique [0003] Many types of input devices exist today for operating in computer systems. These operations typically include moving a cursor and / or making selections on a display screen. For example, input devices may include buttons or keyboards, mice, trackballs, touchpads, joysticks, and touchscreens. In particular, touch screens are becoming increasingly popular due to their ease of operation and operational versatility, as well as their increasingly lower pric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 斯蒂文·P·豪泰灵
Owner APPLE INC
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