Retractable Display Screen with Real-Time Size Adaptation
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Solution Overview
Problem
Existing flexible adjustable display devices cannot display content during the size adjustment of their visible area, limiting user experience and the ability to show different scenes.
Innovation Solution
A display device with a flexible or rigid screen, a receiving member, a sensor assembly, and a controller that allows the screen to continuously change size by retracting or unfolding, enabling real-time display adaptation based on motion conditions, using guide rods and limiting members for accurate size detection and a detection module for observer positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display screen size is adjusted during use, then the display device can adapt to different scenes and improve versatility, but the device cannot display content during the size adjustment process
Solution Approach 1:
The patent implements continuous display functionality during the screen size adjustment process. The display screen maintains its display function throughout the retraction and extension movements, ensuring that the useful action of displaying content continues without interruption. This resolves the contradiction by eliminating the idle time when the display cannot show content during size changes.
2Volume of moving object
If a flexible display screen is used to enable adjustable size, then the device achieves compact storage and portability, but the complexity of the retraction mechanism increases
Solution Approach 1:
The display screen is divided into a visible area and a hidden area that can be independently controlled. The retraction mechanism is segmented into guide rods, limiting members, and reel components that work together in a modular fashion. This segmentation allows the complex functionality to be achieved through coordinated simple components, managing the overall system complexity while enabling compact storage.
Solution Approach 2:
The flexible display screen is nested within the receiving member when retracted, with the first end of the display screen connected to the receiving member and the second end able to extend outward. The guide rods and limiting members are nested within the receiving member structure. This nesting arrangement achieves compact storage volume while organizing the mechanical components in a space-efficient manner.
3Measurement precision
If guide rods and limiting members are added for accurate size detection, then the measurement precision of display screen position improves, but the device complexity increases
Solution Approach 1:
The guide rods and limiting members utilize the natural motion of the display screen during retraction and extension to generate their own detection signals. The guide rods rotate along with the display screen movement, and the limiting members automatically engage at specific positions. This self-service mechanism achieves precise position detection without requiring external power sources or complex electronic sensors, thereby improving measurement precision while minimizing the increase in device complexity.
Data Source
AI summary
A display device includes a display screen having a first and second ends opposite to each other in a length direction of the display screen; a receiving member connected to the first end, a visible area of the display screen includes a display area, as the second end moves forth and back relative to the receiving member in the length direction, the display screen may be gradually retracted to the receiving member or unfolded from the receiving member, so that a size of the display area changes continuously; a sensor assembly that is used for detecting motion condition of the display screen being retracted or unfolded; and a controller that is configured, according to the motion condition of the display screen, to control the display area with a size continuously changed in the display screen to display a screen corresponding to a size of the display area in real time.