Invention Grant
- Patent Title: Haptic feedback and capacitive sensing in a transparent touch screen display
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Application No.: US14459501Application Date: 2014-08-14
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Publication No.: US09904366B2Publication Date: 2018-02-27
- Inventor: Casper van der Avoort , Peter Gerard Steeneken
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: G06F3/01
- IPC: G06F3/01 ; G06F3/044 ; G06F3/041 ; G06F3/0488

Abstract:
Consistent with an example embodiment, a user (touch screen) interface has haptic feedback. The user interface comprises, a substrate, a transparent bottom electrode on top of the substrate, a transparent wrinkling layer on top of the transparent bottom electrode, a transparent top electrode on top of the transparent wrinkling layer; and a transparent protective surface on top of the transparent top electrode. The transparent wrinkling layer changes from a smooth surface to a roughened surface upon application of a voltage between the top electrode and the bottom electrode; the voltage generates an electrostatic force mutually attracting the top and bottom electrodes to exert a compressive force upon the transparent wrinkling layer sufficient to generate a degree of surface wrinkling that is perceptible to the touch.
Public/Granted literature
- US20160048207A1 HAPTIC FEEDBACK AND CAPACITIVE SENSING IN A TRANSPARENT TOUCH SCREEN DISPLAY Public/Granted day:2016-02-18
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