Roller Display Panel Object Detection and Control
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Solution Overview
Problem
Existing display devices lack the ability to detect external objects entering an opening during deployment or rolling operations, which can cause damage and require manual intervention for user notification.
Innovation Solution
A display device with a housing, a roller, a flexible display panel, and a sensor system that detects objects entering a sensing area, controlling the display panel's operation to prevent damage and notify users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible display panel is deployed or rolled without external object detection, then the device structure remains simple, but the display panel may be damaged by external objects entering the opening
Solution Approach 1:
The sensor performs preliminary detection of external objects in the opening before the display panel deployment or rolling operation commences. This advance detection allows the control unit to prevent damage by stopping the operation before the external object can cause harm, thereby improving reliability without requiring complex protective structures during the actual deployment process
Solution Approach 2:
A sensor is introduced as an intermediary detection device between the external environment and the display panel. The sensor monitors the opening for external objects and provides information to the control unit, which then mediates the deployment operation by stopping it when necessary, thus protecting the display panel from damage
2Reliability
If manual intervention is used to notify users of external objects, then the device complexity is reduced, but user notification is delayed and less reliable
Solution Approach 1:
The sensor provides automatic feedback about external objects to the control unit, which then triggers a notification to the user through the display panel or other output devices. This closed-loop feedback system ensures reliable and timely user notification without requiring manual intervention, as the system automatically detects and communicates the presence of external objects
Solution Approach 2:
The system performs self-monitoring and self-notification regarding external objects. The sensor automatically detects external objects and the control unit autonomously notifies the user, eliminating the need for manual checking or intervention. This self-service capability improves notification reliability while keeping the control system relatively simple
3Reliability
If the display panel deployment operation continues without stopping for external object detection, then productivity is maintained, but damage risk increases
Solution Approach 1:
The sensor performs detection before the deployment operation starts or before potential damage can occur. By detecting external objects in advance and stopping the operation only when necessary, the system prevents damage while minimizing interruptions to productivity, as most deployments can proceed without interruption when no external objects are present
Data Source
AI summary
Disclosed is a display device. A display device according to the present disclosure comprises: a housing having an opening; a roller extending longitudinally and located inside the housing; a display panel that is wound on or unwound from the roller and partitions a certain space into a first space and a second space when located outside the housing after passing through the opening; a sensor that is adjacent to a sensing area formed in at least one among the first space and the second space, and senses whether or not there are objects that have entered the sensing area; and a control unit that, on the basis of the information acquired by the sensor, controls whether to perform an operation for winding or unwinding the display panel on or from the roller.