Switchable Touchscreen Input Modes for External Display Control
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Solution Overview
Problem
Users of mobile devices with external display capabilities face inconvenience due to the lack of touchscreen functionality in external monitors, requiring additional input devices like mice or trackpads for control, which limits the usability of multi-display operations.
Innovation Solution
Implementing switchable input modes in electronic devices that allow the touchscreen to operate either as a conventional touchscreen or as a mouse device for external monitor control, with hardware or software buttons to switch between modes and indicate the current mode, enabling the touchscreen to report relative positions for cursor movement in mouse mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If external display is used with mobile device, then display area is increased for better document and presentation operations, but additional input devices (mouse, trackpad) are required because external displays lack touchscreen capability
Solution Approach 1:
The touchscreen display is designed to perform multiple functions: it can operate as a conventional touchscreen for direct interaction, or be switched to function as a mouse device that reports relative positions for cursor control on the external display. This multi-functionality eliminates the need for separate input devices when using external displays.
Solution Approach 2:
The system dynamically switches between different input modes based on the operational context. A switch button allows the touchscreen to transition between touchscreen mode and mouse mode, adapting its functionality to match the user's needs when working with external displays versus the built-in display.
2Ease of operation
If touchscreen operates as mouse device for external monitor control, then additional input devices are eliminated, but the touchscreen cannot simultaneously function as touchscreen for built-in display operations
Solution Approach 1:
The system implements dynamic mode switching where the touchscreen can be toggled between touchscreen mode and mouse mode via a switch button. This allows the device to adapt its input functionality based on whether an external display is active, maintaining versatility while enabling specialized mouse control when needed.
Solution Approach 2:
The switch button enables periodic toggling between different input modes. Users can switch back and forth between touchscreen and mouse modes as needed, allowing the system to alternate between different operational states based on the user's requirements for either built-in or external display interaction.
3Adaptability or versatility
If hardware or software buttons are added for mode switching, then input mode flexibility is improved, but device complexity increases
Solution Approach 1:
The switch button is integrated into the existing device structure, utilizing components already present in the mobile device. The button leverages the device's existing input processing capabilities and display controllers, allowing mode switching without requiring entirely separate control systems or complex additional hardware.
Data Source
AI summary
Embodiments are generally directed to switchable input modes for external display operation. An example electronic device includes a touchscreen, at least one processor, a transmitter to transmit information to an external display, and one or more memories including instructions which, when executed, cause the at least one processor to at least, upon display of a user interface at the external display, in response to detection of a first user input received from the touchscreen, operate the touchscreen as a touchpad for interaction with the user interface presented at the external display, and in response to detection of a second user input received via the touchscreen, operate the touchscreen as a touchpad using a first setting or a second setting, the first setting corresponding to a right-handed use of the touchpad, the second setting corresponding to a left-handed use of the touchpad.