Invention Application
- Patent Title: HAPTIC FEEDBACK AND CAPACITIVE SENSING IN A TRANSPARENT TOUCH SCREEN DISPLAY
- Patent Title (中): 快速反馈和电容感应在透明触摸屏显示
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Application No.: US14459501Application Date: 2014-08-14
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Publication No.: US20160048207A1Publication Date: 2016-02-18
- Inventor: Casper van der Avoort , Peter Gerard Steeneken
- Applicant: NXP B.V.
- Main IPC: G06F3/01
- IPC: G06F3/01 ; G06F1/16 ; G06F3/041 ; G06F3/044 ; 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
- US09904366B2 Haptic feedback and capacitive sensing in a transparent touch screen display Public/Granted day:2018-02-27
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