Invention Grant
- Patent Title: Force detection apparatus
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Application No.: US15658956Application Date: 2017-07-25
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Publication No.: US10234976B2Publication Date: 2019-03-19
- Inventor: Takafumi Suzuki , Shota Hosaka , Yosuke Nakamori
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: JAPAN DISPLAY INC.
- Current Assignee: JAPAN DISPLAY INC.
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2016-150607 20160729
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G02F1/1343 ; G02F1/1333 ; G06F3/044 ; H01L27/32 ; F21V8/00 ; H01L51/52

Abstract:
According to an aspect, a force detection apparatus includes: a first electrode facing an input surface to which an object to be detected applies a force; a second electrode facing the first electrode across a first layer deformable by the force; a conductor facing the second electrode across a second layer deformable by the force; and a force detection controller calculates a force signal value indicating the force, based on a first influence amount and a second influence amount, the first influence amount being an amount of influence added by the force to first capacitance between the first electrode and the second electrode, and the second influence amount being an amount of influence added by the force to second capacitance between the second electrode and the conductor.
Public/Granted literature
- US20180032198A1 FORCE DETECTION APPARATUS Public/Granted day:2018-02-01
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