Title:
INPUT DEVICE WITH TOUCH PANEL, AND TOUCH POSITION DETECTION METHOD USING TOUCH PANEL
Document Type and Number:
Japanese Patent JP2015087828
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the accuracy of detecting a touch position even if user touch pressure on a touch panel is weak.SOLUTION: An input device 1 with a touch panel 2 is configured to apply a predetermined voltage to a pair of electrode bodies facing each other and formed of a resistive film of a position detection unit 22, to detect a touch position of the electrode bodies. A first detection pattern is set for applying a predetermined voltage to a pair of connection terminals arranged at both ends of the electrode bodies, to measure a detection voltage. A second detection pattern is set for applying a voltage formed by switching the voltage of the first detection pattern, to measure the detection voltage. A touch position is calculated on the basis of the detection voltage obtained by the first and second detection patterns.
Inventors:
KANEKO SADAYUKI
SATO RYUICHI
MORI YUYA
SATO RYUICHI
MORI YUYA
Application Number:
JP2013223701A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G06F3/041; G06F3/045
Attorney, Agent or Firm:
Keiji Nemoto
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