Input device and electronic device

• US 9,870,102 B2
• Filed: 02/01/2016
• Issued: 01/16/2018
• Est. Priority Date: 02/06/2015
• Status: Expired due to Fees

• Current Assignee: KYOCERA Document Solutions, Inc. (Kyocera Corporation)
• Original Assignee: KYOCERA Document Solutions, Inc. (Kyocera Corporation)
• Inventors: Saiki, Katsushi
• Primary Examiner(s): Lee, Nicholas
• Assistant Examiner(s): STONE, ROBERT M
• Application Number:
  US15/012,204
• Publication Number:
  US 20160231868A1
• Time in Patent Office: 715 Days
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 3/0433 in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

An input device includes a display section, a touch panel, a pressed position detecting section, a pressing force detecting section, a storage section, and a control section. The touch panel includes a plurality of electrodes. The pressed position detecting section determines whether or not the touch panel is pressed according to a resistance between two electrodes among the electrodes and a pressing determination threshold. The pressed position detecting section detects a pressed position where the touch panel is pressed. The pressing force detecting section detects a determination pressing force at a time when the pressed position detecting section determines a pressing. The storage section stores therein the pressed position and the determination pressing force in association with the pressed position. The control section changes the pressing determination threshold in correspondence with the pressed position according to the pressed position and the determination pressing force stored in the storage section.

Claims

1. An input device comprising:

a display section configured to display a screen;

a touch panel with a plurality of electrodes mounted on the display section and configured to detect a resistance between two electrodes among the plurality of electrodes;

a pressed position detecting section configured to determine whether or not the touch panel is pressed according to the resistance between the two electrodes and a pressing determination threshold and detect a pressed position where the touch panel is pressed;

a pressing force detecting section configured to detect a determination pressing force at a time when the pressed position detecting section determines that the touch panel is pressed;

a storage section that stores therein the pressed position and the determination pressing force in association with the pressed position; and

a control section configured to change the pressing determination threshold in correspondence with the pressed position according to the pressed position and the determination pressing force stored in the storage section, wherein

the storage section stores therein a plurality of pressed positions different from each other and a plurality of determination pressing forces each in association with a corresponding one of the pressed positions, and

the control section changes the pressing determination threshold so that the determination pressing force associated with the pressing position is equal to a determination pressing force associated with another pressed position.

2. The input device according to claim 1, wherein

the storage section stores therein a plurality of pressed positions different from each other and a plurality of determination pressing forces each in association with a corresponding one of the pressed positions, and

the control section calculates an average pressing force indicating an average of the plurality of determination pressing forces stored in the storage section and changes the pressing determination threshold based on the average pressing force.

3. The input device according to claim 1, wherein

the control section determines an amount of change of the pressing determination threshold according to magnitude of the determination pressing force.

4. The input device according to claim 1, wherein

the touch panel includes a plurality of regions, and

the control section changes the pressing determination threshold in correspondence with the regions.

5. The input device according to claim 4, wherein

the plurality of regions includes four, nine, or sixteen regions.

6. The input device according to claim 4, wherein

the plurality of regions are the same in size.

7. The input device according to claim 4, wherein

the plurality of regions differ in size.

8. An electronic device comprising the input device according to claim 1.

9. An input device comprising:

a display section configured to display a screen;

a touch panel with a plurality of electrodes mounted on the display section and configured to detect a resistance between two electrodes among the plurality of electrodes;

a pressed position detecting section configured to determine whether or not the touch panel is pressed according to the resistance between the two electrodes and a pressing determination threshold and detect a pressed position where the touch panel is pressed;

a pressing force detecting section configured to detect a determination pressing force at a time when the pressed position detecting section determines that the touch panel is pressed;

a storage section that stores therein the pressed position and the determination pressing force in association with the pressed position; and

a control section configured to change the pressing determination threshold in correspondence with the pressed position according to the pressed position and the determination pressing force stored in the storage section, wherein

the storage section stores therein a plurality of pressed positions different from each other and a plurality of determination pressing forces each in association with a corresponding one of the pressed positions, and

the control section calculates an average pressing force indicating an average of the plurality of determination pressing forces stored in the storage section and changes the pressing determination threshold based on the average pressing force.

10. The input device according to claim 9, wherein

the control section determines an amount of change of the pressing determination threshold according to magnitude of the determination pressing force.

11. The input device according to claim 9, wherein

the touch panel includes a plurality of regions, and

the control section changes the pressing determination threshold in correspondence with the regions.

12. The input device according to claim 11, wherein

the plurality of regions includes four, nine, or sixteen regions.

13. The input device according to claim 11, wherein

the plurality of regions are the same in size.

14. The input device according to claim 11, wherein

the plurality of regions differ in size.

15. An electronic device comprising the input device according to claim 9.