DESCRIPTION
IMAGE DISPLAY APPARATUS, IMAGE DISPLAY CONTROL METHOD, AND
PROGRAM
5 TECHNICAL FIELD
[OOO 11
The present invention relates to an image display apparatus, an image display
control method, and a program. Particularly, the present invention relates to an
image display apparatus, an image display control method, and a program that
10 change displayed information in accordance with a movement of a display unit.
BACKGROUND ART
[0002]
Most portable devices, such as cameras, game machines and mobile terminals,
15 of these days are provided with a display unit such as a liquid crystal display, and
have a configuration that makes it possible to display on a display unit and observe,
for example, an image photographed by a camera, or the like. In general, when
changing an image displayed on the display unit of such a portable device, a user
needs to provide a predetermined input through an input section such as a switch
20 provided in the apparatus.
[0003]
Patent Document 1 (Japanese Patent No. 3234633) is available as a
conventional technology disclosing a configuration that changes a content displayed
on a display unit without any user input provided via an input unit but with leaning
25 and rotating of an apparatus provided with the display unit. Patent Document 1
here discloses the configuration that has a sensor contained in the apparatus provided
with the display unit, determines the degrees of leaning of the apparatus and the like
on the basis of information from the sensor, and changes information displayed on
the display unit, the sensor being ~ o ~ g u rteo dm easure the amount of movement
30 and the amount of rotation of the apparatus.
[0004]

SP262799WO00
CLAIMS
1. An image display apparatus comprising:
a sensor for detecting a rotation angle of the image display apparatus or
5 information used for calculating the rotation angle;
a control unit for executing update processing on displayed data on the basis
of a current angle of the image display apparatus, the current angle being calculated
on the basis of information input from the sensor; and
a display unit for displaying displayed data that accords with the update
10 processing executed by the control unit,
wherein the control unit:
is configured to, when an image processing apparatus is in a predetermined
operating range, execute the update processing on the displayed data on the display
unit in accordance with the rotation angle within the operating range; and,
15 when the image display apparatus has rotated beyond an already set-up
operating range, changes the operating range along with the rotation, and performs
operating-range update processing in which the current angle of the image display
apparatus is set to within an updated operating range.
20 2. The image display apparatus according to claim 1, wherein the control unit:
executes, when the current angle of the image display apparatus has shifted
in a direction that brings the current angle beyond the upper limit of the already
set-up operating range, the operating-range update processing in a manner that the
current angle is set as the upper limit of an operating range; and
25 executes, when the current angle of the image display apparatus has shifted
in a direction that brings the current angle beyond the lower limit of the already
set-up operating range, the operating-range update processing in a manner that the
current angle is set as the lower limit of the operating range.
30 3. The image display apparatus according to claim 1 or 2, wherein:
the sensor is an angular velocity sensor or an angular acceleration sensor;
24