Touch Screen Control Mode Switching for Head-Mounted Displays
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Solution Overview
Problem
In head-mounted devices with separate touch screens and display screens, users face difficulties in accurately positioning icons due to mismatched control points and user interface icons, leading to poor user experience.
Innovation Solution
A control method and device that dynamically switch between hand gesture mode and simulated mouse mode based on touch operation data, allowing for automatic mode switching to match user intent and improve interaction accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the touch screen and display screen are separate in head-mounted devices, then the device structure is more flexible and compact, but the control point of the touch screen and the user interface icon of the display screen are difficult to match, resulting in poor operation accuracy
Solution Approach 1:
The patent introduces a coordinate conversion module as an intermediary between the touch screen controller and display screen controller. This module converts touch coordinates from the touch screen coordinate system to the display screen coordinate system, enabling accurate positioning despite the physical separation of the two screens. The coordinate conversion acts as a mediator that bridges the spatial gap between touch input and visual output.
Solution Approach 2:
The patent replaces the mechanical alignment approach (physically aligning touch screen and display screen) with a software-based coordinate transformation system. Instead of relying on precise mechanical positioning of the two screens, the system uses algorithmic coordinate conversion to achieve accurate mapping between touch points and display icons, substituting physical precision with computational precision.
2Adaptability or versatility
If multiple working modes are added to the touch screen controller, then the adaptability to different operation scenarios is improved, but the controller complexity increases
Solution Approach 1:
The touch screen controller is designed with multi-functionality to handle both coordinate conversion for separate screen configurations and direct control for integrated screen configurations. The controller automatically detects the device type and switches between different operational modes, making it a universal controller that can adapt to various screen arrangements without requiring separate specialized controllers for each configuration.
Solution Approach 2:
The controller implements dynamic mode switching based on the detected device configuration. When an integrated touch display screen is detected, the controller directly controls the display; when separate screens are detected, the controller activates coordinate conversion functionality. This dynamic adaptation allows the controller to optimize its behavior based on real-time configuration detection, managing complexity through conditional logic rather than static design.
Data Source
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AI summary
Disclosed is a control method and control device for a working mode of a touch screen. The control method for the working mode of the touch screen comprises: acquiring current touch operation data generated when a user operates a touch screen (S11); performing logic judgment on whether to switch the working mode according to a current working mode of the touch screen and the touch operation data, and if yes, sending a switching signal to a touch screen control chip, so as to enable the touch screen control chip to control and switch the working mode of the touch screen when receiving the switching signal (S12). According to the present disclosure, the operating intent of the user on the touch screen can be automatically identified according to the touch operation data of the user on the touch screen and the current working mode of the touch screen, and the working mode of the touch screen is controlled to be switched to a corresponding mode, thereby the touch operation of the user is facilitated and the use experience of the user is optimized.