Invention Grant
- Patent Title: Force detection apparatus
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Application No.: US16261015Application Date: 2019-01-29
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Publication No.: US10365746B2Publication Date: 2019-07-30
- 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 20170729
- Main IPC: G06F3/041
- IPC: G06F3/041 ; F21V8/00 ; G02F1/1343 ; G06F3/044 ; H01L27/32 ; H01L51/52 ; G02F1/1333

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
- US20190171326A1 FORCE DETECTION APPARATUS Public/Granted day:2019-06-06
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