TOUCHSCREEN PANEL UNIT, SCROLLING CONTROL METHOD, AND RECORDING MEDIUM

• US 20110025627A1
• Filed: 07/26/2010
• Published: 02/03/2011
• Est. Priority Date: 07/30/2009
• Status: Active Grant

• Current Assignee: Fujitsu Component Limited (Fujitsu Limited)
• Original Assignee: Fujitsu Component Limited (Fujitsu Limited)
• Inventors: Sakai, Toshihiko
• Granted Patent: US 8,614,682 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A touchscreen panel unit includes a scrolling determination part configured to determine whether to scroll a displayable region of information to be displayed on a screen based on the positional relationship between the position of a first contact with the screen and the position of a second contact with the screen; a scrolling setting part configured to set the scrolling direction and the scrolling distance of the displayable region based on the position of the first contact and a contact position path starting at the position of the second contact, in response to the scrolling determination part determining that the displayable region is to be scrolled; and a scrolling information output part configured to output information indicating the scrolling direction and the scrolling distance set by the scrolling setting part.

Claims

1. A touchscreen panel unit, comprising:

a scrolling determination part configured to determine whether to scroll a displayable region of information to be displayed on a screen based on a positional relationship between a position of a first contact with the screen and a position of a second contact with the screen;

a scrolling setting part configured to set a scrolling direction and a scrolling distance of the displayable region based on the position of the first contact and a contact position path starting at the position of the second contact, in response to the scrolling determination part determining that the displayable region is to be scrolled; and

a scrolling information output part configured to output information indicating the scrolling direction and the scrolling distance set by the scrolling setting part.

2. The touchscreen panel unit as claimed in claim 1, wherein the scrolling setting part is configured to set the scrolling direction and the scrolling distance of the displayable region in response to the contact position path crossing a boundary line passing the position of the first contact.

3. The touchscreen panel unit as claimed in claim 2, wherein the scrolling setting part is configured to set the scrolling direction of the displayable region in a direction to cross the boundary line and to set the scrolling distance of the displayable region to a distance determined based on a traveling distance from the position of the second contact.

4. The touchscreen panel unit as claimed in claim 1, further comprising:

a contact coordinate determination part configured to determine whether coordinates of the position of the second contact are included in a predetermined area including coordinates of the position of the first contact,

wherein the scrolling determination part is configured to determine that the displayable region is to be scrolled in response to the contact coordinate determination part determining that the coordinates of the position of the second contact are included in the predetermined area.

5. The touchscreen panel unit as claimed in claim 1, wherein the scrolling setting part is configured to set the scrolling direction of the displayable region so that the displayable region is scrolled in at least one of a vertical direction and a horizontal direction.

6. The touchscreen panel unit as claimed in claim 1, wherein the scrolling setting part is configured to set the scrolling direction of the displayable region based on the position of the first contact and the contact position path so that the displayable region is scrolled in an oblique direction.

7. A scrolling control method, comprising:

determining whether to scroll a displayable region of information to be displayed on a screen based on a positional relationship between a position of a first contact with the screen and a position of a second contact with the screen;

setting a scrolling direction and a scrolling distance of the displayable region based on the position of the first contact and a contact position path starting at the position of the second contact, in response to determining that the displayable region is to be scrolled; and

outputting information indicating the scrolling direction and the scrolling distance set by said setting.

8. A computer-readable recording medium in which a program is recorded for causing a processor of a computer to execute the scrolling control method as set forth in claim 7.