Hand-Held Electronic Device Having Rolled-Up Screen and Display Method Thereof
OwnerRichard Hwanginventor
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Abstract
A hand-held electronic device having a rolled-up screen comprises a flexible screen which can be partially received within a casing by a reeling mechanism in such a manner that the displaying function can still be performed by the flexible screen partially exposed outside the casing. When the flexible screen is pulled out and entirely exposed outside of the casing, the entire flexible screen can be used for image-displaying. Thus, advantages in both the high displaying quality of a large screen and excellent portability of a small-sized hand-held electronic device can be attained.
Claims10
A hand-held electronic device having a rolled-up screen, comprising:
- a casing:
- a flexible screen for displaying images thereon;
- a reeling mechanism, connected with the flexible screen so as to reel elastically the flexible screen between an extended position and an initial position, a first area of the flexible screen being exposed outside the casing and a second area thereof being retrieved inside the casing while the flexible screen is at the initial position, both the first area and the second area being exposed outside the casing to form an integrated third area while the flexible screen is pulled to the extended position:
- a screen-detecting module for detecting whether the flexible screen is at the initial position or at the extended position and generating a detection signal accordingly:
- and
- an image-controlling module for controlling image-displaying on the flexible screen based on the detection signal, connected with the flexible screen and the screen-detecting module, controlling the flexible screen to display only on the first area while the screen-detecting module determines that the flexible screen is at the initial position, controlling the flexible screen to display on the third area while the screen-detecting module determines that the flexible screen is at the extended position.
A display method for a hand-held electronic device, comprising the steps of:
- providing a hand-held electronic device having a rolled-up screen, wherein the hand-held electronic device includes:
- a casing, a flexible screen, and a reeling mechanism for reeling elastically the flexible screen between an extended position and an initial position, a first area of the flexible screen being exposed outside the casing and a second area thereof being retrieved inside the casing while the flexible screen is at the initial position, both the first area and the second area being exposed outside the casing to form an integrated third area while the flexible screen is pulled to the extended position;
- detecting whether the flexible screen is at the initial position or at the extended position and generating a detection signal accordingly;
- based on the detection signal, determining a size of an image for displaying, the size of the image being equal to a size of the first area while the detection signal is realized as that the flexible screen is at the initial position, the size of the image being equal to a size of the third area while the detection signal is realized as that the flexible screen is at the extended position;
- and
- controlling the flexible screen to display the image according to the size of the image, displaying the image only on the first area if the size of the image is equal to the size of the first area, displaying the image on the third area if the size of the image is equal to the size of the third area.
Dependencies are inferred from the claim text.