DISPLAY CONTROL DEVICE, DISPLAY CONTROL METHOD AND PROGRAM

• US 20140192022A1
• Filed: 05/16/2013
• Published: 07/10/2014
• Est. Priority Date: 08/09/2012
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Yamamoto, Masayuki
• Granted Patent: US 9,665,216 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04805 Virtual magnifying lens, i.e. window or frame movable on top of displayed information to enlarge it for better reading or selection
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A proximity detection unit detects the proximity of a finger to a screen and outputs a proximity detection signal. A contact detection unit detects the contact of the finger to the screen and outputs a contact detection signal. On the basis of the proximity detection signal, a display control unit magnifies and displays a predetermined range around a proximity corresponding position. On the basis of the contact detection signal depending on the contact operation of the indicator for the predetermined range, the display control unit fixes the magnified display of the predetermined range and does not change the display position of the magnified predetermined range depending on the movement operation of the finger on the screen.

Claims

1. A display control device comprising:

a display unit which displays data on a screen;

a proximity detection unit which detects proximity of an indicator to the screen and outputs a proximity detection signal;

a contact detection unit which detects the contact of the indicator to the screen and outputs a contact detection signal; and

a display control unit which magnifies and displays, on the basis of the proximity detection signal, a predetermined range around a proximity corresponding position or a position away from the proximity corresponding position by an approximately predetermined distance from among the data displayed on the screen, the proximity corresponding position being a position on the screen corresponding to the position of the indicator whose proximity to the screen was detected,

wherein the display control unit fixes the magnified display of the predetermined range on the basis of the contact detection signal depending on the contact operation of the indicator for the predetermined range and does not change the display position of the magnified predetermined range depending on a movement operation of the indicator on the screen.

2. The display control device according to claim 1, wherein the display control unit releases the fixing of the magnified display of the predetermined range on the basis of the proximity detection signal depending on the proximity operation of the indicator whose contact was detected.

3. The display control device according to claim 2, wherein in response to the release of the fixing of the magnified display of the predetermined range, the display control unit displays the predetermined range to be magnified and displayed so that the predetermined range is moved instantaneously from the display position of the predetermined range magnified and displayed at the time of the fixing to the proximity corresponding position of the indicator whose proximity was detected.

4. The display control device according to claim 2, wherein in response to the release of the fixing of the magnified display of the predetermined range, the display control unit displays the predetermined range to be magnified and displayed so that the predetermined range is moved at uniform speed or nearly uniform speed from the display position of the predetermined range magnified and displayed at the time of the fixing to the proximity corresponding position of the indicator whose proximity was detected.

5. The display control device according to claim 2, wherein in response to the release of the fixing of the magnified display of the predetermined range, the display control unit displays the predetermined range to be magnified and displayed so that the predetermined range is moved under acceleration from the display position of the predetermined range magnified and displayed at the time of the fixing to the proximity corresponding position of the indicator whose proximity was detected.

6. The display control device according to claim 1, further comprising:

a magnification position determination unit which determines the display position of the predetermined range to be magnified and displayed,

wherein the display control unit magnifies and displays the display position of the predetermined range determined by the magnification position determination unit.

7. The display control device according to claim 6, wherein the magnification position determination unit determines the display position of the predetermined range to be magnified and displayed at a position away from the proximity corresponding position corresponding to the position of the indicator whose proximity was detected, by a predetermined distance.

8. The display control device according to claim 1, wherein the display control unit displays the predetermined range to be magnified and displayed in either one of a nearly circular shape including a true circle, a nearly elliptical shape including an elliptical shape and a nearly quadrangular shape including a square or rectangular shape.

9. The display control device according to claim 8, wherein the display control unit displays the predetermined range to be magnified and displayed so that the predetermined range includes a first display area having a magnification display ratio larger than a predetermined value and a second display area having a magnification display ratio smaller than the predetermined value.

10. A display control method of a display control device equipped with a display unit for displaying data on a screen, comprising the steps of:

detecting proximity of an indicator to the screen and outputting a proximity detection signal;

magnifying and displaying, on the basis of the proximity detection signal, a predetermined range around a proximity corresponding position or a position away from the proximity corresponding position by an approximately predetermined distance from among the data displayed on the screen, wherein the proximity corresponding position is a position on the screen corresponding to the position of the indicator whose proximity was detected;

detecting the contact of the indicator to the screen and outputting a contact detection signal;

fixing the magnified display of the predetermined range on the basis of the contact detection signal depending on the contact operation of the indicator to the predetermined range; and

unchanging the display position of the magnified predetermined range depending on the movement operation of the indicator on the screen.

11. A program for executing a method for a computer serving as a display control device equipped with a display unit for displaying data on a screen, comprising the steps of:

detecting proximity of an indicator to the screen and outputting a proximity detection signal;

magnifying and displaying, on the basis of the proximity detection signal, a predetermined range around a proximity corresponding position or a position away from the proximity corresponding position by an approximately predetermined distance from among the data displayed on the screen, wherein the proximity corresponding position is a position on the screen corresponding to the position of the indicator whose proximity was detected;

detecting the contact of the indicator to the screen and outputting a contact detection signal;

fixing the magnified display of the predetermined range on the basis of the contact detection signal depending on the contact operation of the indicator to the predetermined range; and

unchanging the display position of the magnified predetermined range depending on the movement operation of the indicator on the screen.