Portable terminal device, luminance control method, and luminance control program
First Claim
1. A portable terminal apparatus that receives an operation to instruct scrolling of an image displayed on a screen, that moves the image toward an instructed direction and that displays the image, the apparatus comprising:
- one or more memories; and
circuitry which, in operation;
detects a speed of the operation;
calculates a total distance by which a display image at an end of scrolling moves from start to end of the scrolling and a moving distance by which the display image at the end of the scrolling moves during scrolling based on the operation speed;
judges whether or not the display image at the end of scrolling is included in a region of the screen during scrolling based on a difference between the total distance and the moving distance during scrolling and determines, to be a control target region, a region judged not to include the display image at the end of the scrolling of the region of the screen; and
performs control of lowering brightness of the control target region on the display image during scrolling, and for a region of the screen that part of the display image at the end of the scrolling enters, performs control of changing brightness of the region to brightness higher than that of the control target region.
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Accused Products
Abstract
A portable terminal apparatus receives an operation instructing that an image displayed on a screen be scrolled, and moves the image in the instructed direction. The apparatus comprising: one or more memories, and circuitry. The circuitry which, in operation, judges whether or not a display image at an end of scrolling is included in a region of the screen during scrolling and determines, to be a control target region, a region judged not to include the display image at the end of the scrolling of the region of the screen; and performs control of lowering brightness of the control target region on the display image during scrolling.
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Citations
10 Claims
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1. A portable terminal apparatus that receives an operation to instruct scrolling of an image displayed on a screen, that moves the image toward an instructed direction and that displays the image, the apparatus comprising:
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one or more memories; and circuitry which, in operation; detects a speed of the operation; calculates a total distance by which a display image at an end of scrolling moves from start to end of the scrolling and a moving distance by which the display image at the end of the scrolling moves during scrolling based on the operation speed; judges whether or not the display image at the end of scrolling is included in a region of the screen during scrolling based on a difference between the total distance and the moving distance during scrolling and determines, to be a control target region, a region judged not to include the display image at the end of the scrolling of the region of the screen; and performs control of lowering brightness of the control target region on the display image during scrolling, and for a region of the screen that part of the display image at the end of the scrolling enters, performs control of changing brightness of the region to brightness higher than that of the control target region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A brightness control method performed by an apparatus that receives an operation to instruct scrolling of an image displayed on a screen, that moves the image toward an instructed direction and that displays the image, the method comprising:
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detecting a speed of the operation; calculating a total distance by which a display image at an end of scrolling moves from start to end of the scrolling and a moving distance by which the display image at the end of the scrolling moves during scrolling based on the operation speed; judging whether or not the display image at the end of scrolling is included in a region of the screen during scrolling based on a difference between the total distance and the moving distance during scrolling and determining, to be a control target region, a region judged not to include the display image at the end of the scrolling of the region of the screen; and performing control of lowering brightness of the control target region on the display image during scrolling, and for a region of the screen that part of the display image at the end of the scrolling enters, performing control of changing brightness of the region to brightness higher than that of the control target region.
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10. A non-transitory recording medium storing a computer program to be executed by a computer of an apparatus, the apparatus being an apparatus that receives an operation to instruct scrolling of an image displayed on a screen, that moves the image toward an instructed direction and that displays the image, the computer program causing the computer of the apparatus to:
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detect a speed of the operation; calculate a total distance by which a display image at an end of scrolling moves from start to end of the scrolling and a moving distance by which the display image at the end of the scrolling moves during scrolling based on the operation speed; judge whether or not the display image at the end of scrolling is included in a region of the screen during scrolling based on a difference between the total distance and the moving distance during scrolling and determine, to be a control target region, a region judged not to include the display image at the end of the scrolling of the region of the screen; and perform control of lowering brightness of the control target region on the display image during scrolling, and for a region of the screen that part of the display image at the end of the scrolling enters, perform control of changing brightness of the region to brightness higher than that of the control target region.
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Specification