Patent ID: 11908363
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A method for controlling a rolling display device, said rolling display device comprising a controller, a housing, a roll unit mounted in the housing and configured to be rotatable around a roll axis, a flexible, touch-sensitive display rolled around said roll unit and defining a planar front screen having a fixed first dimension and a second dimension that changes according to a degree of rotation of said roll unit, and an accelerometer connected to said controller, the method comprising:
calculating, by said controller, an optimal second dimension for displaying a visual content based on said fixed first dimension, an orientation of said display, and an aspect ratio of said visual content;
adjusting, by rotating said roll unit, the second dimension of said front screen to said optimal second dimension; and
displaying said visual content on said front screen;
detecting a first movement gesture or a second movement gesture by said accelerometer; and
adjusting said front screen by said controller between a rolled-in state wherein said second dimension is minimal, and a rolled-out state wherein said second dimension is maximal; wherein
in response to the accelerometer detecting a first movement gesture, said front screen is adjusted to a rolled-out state, and
in response to the accelerometer detecting a second movement gesture, said front screen is adjusted to a rolled-in state;

wherein the first movement gesture comprises:
a first sub-gesture of arranging said display in a horizontally upwards state, and
a second sub-gesture of shaking said display by rotating in a clockwise direction around an axis parallel to said roll axis while keeping said display upwards and returning the display to said horizontally upwards state;

wherein said second movement gesture comprises:
said first sub-gesture, and
a third sub-gesture of shaking said display by rotating in a counter-clockwise direction around an axis parallel to said roll axis while keeping said display upwards and returning the display to said horizontally upwards state; and

wherein the method further comprises:
detecting a time interval Td elapsed between said first sub-gesture and said second sub-gesture or said third sub-gesture, to
interpreting said first movement gesture valid only if said time interval Td between the first sub-gesture and the second sub-gesture is equal or shorter than a predefined time threshold Tr, and to
interpreting said second movement gesture as valid only if said time interval Td between the first sub-gesture and the third sub-gesture is equal or shorter than a predefined time threshold Tr.