Rollable Display Roller Cover for S-PCB Protection
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Solution Overview
Problem
Display panels face damage and dislocation issues during winding and unwinding processes due to the lack of effective protection for the source printed circuit board (S-PCB) when rolled around a roller.
Innovation Solution
A display device design featuring a flexible display panel with an S-PCB seated on a roller with a seating portion and covered by a longitudinal cover to prevent damage and dislocation, ensuring stable winding and unwinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the S-PCB is placed adjacent to the flexible display panel during winding, then the display device can be implemented with a compact structure, but the S-PCB is vulnerable to damage and dislocation
Solution Approach 1:
A cover member is introduced as an intermediary component between the roller and the S-PCB. This cover member extends along the longitudinal direction of the roller and covers the S-PCB, preventing damage and dislocation while allowing the S-PCB to remain in its protective groove during the winding process
2Stability of the object's composition
If the roller has a flat seating portion for the S-PCB, then the S-PCB can be stably positioned, but the overall device complexity increases
Solution Approach 1:
The roller surface is segmented into different functional zones: a flat groove portion for accommodating and stabilizing the S-PCB, and a curved outer circumferential surface for the winding operation. This segmentation allows the S-PCB to be stably positioned during winding without requiring the entire roller structure to be complex
3Reliability
If the cover extends along the longitudinal direction of the roller, then the S-PCB is effectively protected from damage and dislocation, but the device complexity increases
Solution Approach 1:
The cover member is designed as a thin, flexible protective shell that extends along the longitudinal direction of the roller. This simple yet effective design protects the S-PCB from damage and dislocation during winding and unwinding operations without adding significant structural complexity to the overall device
Data Source
AI summary
Disclosed is a display device. The display device of the present disclosure includes a flexible display panel, a source printed circuit board (S-PCB) located adjacent to a lower side of the flexible display panel and electrically coupled to the flexible display panel, a roller comprising a seating portion accommodating the S-PCB, wherein the seating portion is formed by removing a part of an outer circumferential surface of the roller, wherein the flexible display panel is wound around or unwound from the roller, and a cover extending in a longitudinal direction of the roller to cover the S-PCB.