Invention Grant
- Patent Title: Display with integrated pressure sensing utilizing capacitive coupling to circuit elements
-
Application No.: US13784509Application Date: 2013-03-04
-
Publication No.: US10402000B2Publication Date: 2019-09-03
- Inventor: Abbas Jamshidi-Roudbari , Shih Chang Chang , Cheng-Ho Yu , Ting-Kuo Chang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kubota & Basol LLP
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041

Abstract:
A touch sensitive device that can detect the amount of pressure being applied to a touch screen from a user or other external object is provided. A spacer of the touch screen can be coated with a layer of conductive material and the change in capacitance between the spacer and various circuit elements of the touch screen can be measured. The change in capacitance can be correlated to the amount of pressure being applied to the touch screen, thus providing a method to determine the pressure being applied. During operation of the device, the system can time multiplex touch, display and pressure sensing operations so as to take advantage of an integrated touch and display architecture.
Public/Granted literature
- US20140247239A1 DISPLAY INTEGRATED PRESSURE SENSOR Public/Granted day:2014-09-04
Information query