Rollable Display Voice Output by Zero, Partial, and Full View
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Solution Overview
Problem
Display devices face challenges in quickly and accurately providing results to users after receiving voice commands, especially when the display is in zero view mode, as it takes time to draw out the display, delaying the immediate delivery of results.
Innovation Solution
The display device incorporates a rotatable roller mechanism that adjusts the display's length, allowing the controller to control the output of voice command results differently based on the drawn-out length, enabling immediate and accurate delivery of results without additional driving, by adjusting the display mode to zero view, partial view, or full view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display is drawn out from the housing to display voice command results, then the display area is increased, but the time required to provide results is increased
Solution Approach 1:
The display device dynamically adjusts the drawn-out length of the display based on the type of voice command received. For immediate response commands, the display remains in housing (zero view mode) and provides only audio feedback. For commands requiring detailed visual output, the display is drawn out to partial or full view mode. This dynamic adaptation resolves the contradiction by matching display configuration to command requirements.
Solution Approach 2:
The system changes the physical parameter of display extension (drawn-out length) based on the voice command type. By controlling the roller mechanism to adjust display extension, the system optimizes between quick response (no extension) and comprehensive visual output (extended display), resolving the area-time tradeoff.
2Loss of time
If the display is kept in zero view mode for quick response, then the time to provide results is reduced, but the display area is reduced
Solution Approach 1:
The voice command system is segmented into different types: immediate response commands (handled with display in housing) and detailed output commands (handled with display extended). This segmentation allows the system to optimize for speed when appropriate and for display area when needed, resolving the contradiction through command-type differentiation.
Solution Approach 2:
The system applies partial action by extending the display only to the degree necessary for the specific command type. For immediate response commands, no extension is performed (zero view mode). For other commands, partial or full extension occurs. This partial action approach minimizes unnecessary display movement while ensuring adequate display area when required.
3Area of stationary object
If the display is drawn out to full view mode for all voice commands, then the display area is maximized, but the device complexity increases
Solution Approach 1:
Different parts of the voice command system are treated differently based on command type. Immediate response commands receive audio-only handling with display in housing, while other commands receive full or partial display extension. This local quality approach simplifies control by applying different display strategies to different command categories rather than using a single complex control system for all commands.
Data Source
AI summary
A display device including a display; and a controller configured to receive an input of a voice command, and output a result of the voice command differently according to a mode of the display even for the same voice command.


