Title:
TOUCH PANEL CONTROL DEVICE, AND INFORMATION PROCESSING APPARATUS
Document Type and Number:
Japanese Patent JP2015141538
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve detection sensitivity while reducing the influence of noise.SOLUTION: A liquid crystal display controller (20) updates the display of a liquid crystal display panel (40) in a touch detection mode when the distance from an indicating body to a detection surface of a touch sensor (30) is a predetermined value or less, and in a proximity mode when the distance from the indicating body to the detection surface is larger than the predetermined value; and a coordinate calculation unit (12A) of a touch sensor controller (10) performs a detection operation at a first detection sensitivity during an update period and at a higher sensitivity than the first detection sensitivity during a dormant period.
Inventors:
WATANABE TATSUO
MAEDA KENJI
MAEDA KENJI
Application Number:
JP2014013762A
Publication Date:
August 03, 2015
Filing Date:
January 28, 2014
Export Citation:
Assignee:
SHARP KK
International Classes:
G06F3/041
Attorney, Agent or Firm:
Harakenzo world patent & trademark