Scroll and Rollable Display Panel Housing Design
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Solution Overview
Problem
Existing rollable display panels face challenges in protecting the control module from external damage and optimizing space utilization for the flexible panel and control components during winding and unwinding processes.
Innovation Solution
A scroll design with a first and second housing forming an accommodation space for the control module, where the flexible panel is wound on the outer surface, and the control module includes a driving chip, flexible circuit board, and epitaxial crystallization film, with buckles and fixing pillars for secure arrangement and space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the control module is placed outside the housing structure, then the flexible panel has more winding space, but the control module is vulnerable to external damage
Solution Approach 1:
The housing is divided into a first housing and a second housing, creating separate functional zones. The first housing accommodates the control module with protective features (grooves, openings with clamped side walls), while the second housing provides the winding surface for the flexible panel. This segmentation allows each component to be optimized independently for its specific function.
Solution Approach 2:
The control module is nested within the first housing structure, which itself is part of the overall scroll assembly. The epitaxial crystallization film is bound to the control module and positioned within the housing. This nested arrangement protects the control module while maintaining a compact overall structure that preserves winding space.
2Reliability
If the control module is placed inside a housing, then the control module is protected from damage, but the space utilization for winding the flexible panel is reduced
Solution Approach 1:
The housing is divided into a first housing and a second housing, creating separate functional zones. The first housing accommodates the control module with protective features (grooves, openings with clamped side walls), while the second housing provides the winding surface for the flexible panel. This segmentation allows each component to be optimized independently for its specific function.
Solution Approach 2:
The patent transitions from a single housing structure to a multi-housing three-dimensional arrangement. By stacking the first housing (for control module) and second housing (for winding) in space, the design utilizes vertical/dimensional space rather than merely horizontal space, thereby protecting the control module while preserving adequate winding area.
3Device complexity
If traditional binding methods are used for the control module, then the structure is simple, but the control module is vulnerable to external forces
Solution Approach 1:
The first housing incorporates localized protective features at specific critical locations: grooves on the outer surface and openings with clamped side walls. These local structural enhancements provide targeted protection for the control module without requiring a complete redesign of the entire housing structure, thus maintaining relative simplicity while improving reliability.
Solution Approach 2:
The epitaxial crystallization film is bound to the control module in advance, creating a protective layer before the module is subjected to external forces. The housing structure with its grooves and clamped openings provides pre-established mechanical protection, cushioning the control module against potential damage from external forces before such forces can cause harm.
Data Source
AI summary
The present disclosure relates to the field of display technologies, and proposes a scroll and a rollable display panel. The scroll is used for the rollable display panel. The rollable display panel includes a flexible panel and a control module for driving the flexible panel. The scroll includes: a first housing and a second housing; an accommodation space for accommodating the control module being formed between the first housing and the second housing; wherein, a surface for winding the flexible panel is formed by an outer surface of the first housing and/or the second housing.