Mirrored Display Pointing Area Control for Mobile Terminals
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Solution Overview
Problem
Users face difficulties in controlling large screens mirrored from mobile communication terminals, as they need to alternate looking between the terminal and the larger screen to perform movements or zoom operations, leading to unintended actions.
Innovation Solution
A method and apparatus that fix a pointing area on the mobile communication terminal, allowing users to select contents by moving only the screen data, which is then transmitted in real-time to an external display device, enabling precise control without needing to view the larger screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If screen data is mirrored to a large external display device, then the display area is increased, but the user cannot easily control the large screen without alternating between the terminal and the larger screen
Solution Approach 1:
The patent divides the display system into two independent parts: a fixed pointing area on the mobile terminal screen and the mirrored screen data on the external display device. The pointing area remains stationary while the screen data can be moved and zoomed independently, allowing users to control the large screen without needing to view it directly.
Solution Approach 2:
The pointing area acts as an intermediary between the user's touch input on the mobile terminal and the corresponding area on the large external display. By fixing this reference point on the terminal screen, users can intuitively control screen movements and zoom operations on the large display without needing to visually reference it.
2Area of stationary object
If the entire screen is mirrored to the external display device, then the display area is increased, but the user may zoom-in/out an unintended part
Solution Approach 1:
The patent applies local quality by making the pointing area fixed and stationary while allowing the rest of the screen data to be moved and zoomed. This creates a stable reference frame that ensures zoom and pan operations are centered on the intended content, preventing unintended zooming on wrong areas of the large display.
3Measurement precision
If the pointing area is fixed on the mobile terminal, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The patent creates a simplified copy or representation of the display system by fixing a pointing area on the mobile terminal that corresponds to the mirrored content on the external display. This copying approach maintains control precision without requiring complex coordination systems, as the pointing area serves as a simple reference frame for all screen manipulation operations.
Data Source
AI summary
A method of displaying data by a mobile communication terminal mirrored by an external display device is provided. The method includes if a mirroring mode with the external display device is executed, determining whether a first user input for displaying a fixed pointing area is input, if the first user input is input, displaying the pointing area, and transmitting screen data including the pointing area to the external display device in real time.