Rollable Display Housing for Driving Module Protection
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Solution Overview
Problem
Rollable display devices face the challenge of protecting the driving module from damage and visibility issues when the flexible display panel is rolled or unrolled, as the module is typically exposed and can interfere with the panel's operation.
Innovation Solution
A compact housing structure is designed to encase the driving module, using a flexible circuit board and printed circuit board configuration with bent portions, sealed within a chamber of the support structure, which includes a shock-absorbing member to prevent damage and visibility during rolling and unrolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the driving module is disposed outside the support structure, then the assembly process is simple, but the module is exposed to damage and user view when the panel is rolled
Solution Approach 1:
The driving module is nested within a housing structure that is integrated into the support structure. The housing contains the driving module in a protected chamber, allowing the module to be concealed when the panel is rolled while maintaining assembly feasibility through integrated design.
2Reliability
If the driving module is disposed inside the support structure, then the module is protected from damage, but the module becomes visible to users when unrolled
Solution Approach 1:
The driving module is extracted from the visible area by placing it inside a housing structure with a chamber that conceals the module. The housing includes a hole through which the flexible circuit board passes, allowing electrical connection while keeping the module hidden from user view when the panel is unrolled.
3Object-affected harmful factors
If the housing is designed to conceal the driving module, then the module is protected from view and interference, but the structural complexity increases
Solution Approach 1:
The housing structure is merged with the support structure, where the housing is disposed at an outermost side of the support structure. This integration allows the housing to utilize the existing support structure framework, reducing overall structural complexity while still achieving the concealment function.
4Adaptability or versatility
If the flexible display panel is rolled to compact position, then portability is improved, but the driving module is exposed to damage
Solution Approach 1:
The housing structure provides beforehand protection for the driving module by enclosing it in a chamber with protective walls. This pre-established protective structure prevents damage to the module during the rolling and unrolling operations, enabling the device to achieve compact portability without compromising module durability.
Data Source
AI summary
A rollable display device includes: a panel supporting portion including a plurality of supporters arranged in substantially parallel relationship and a plurality of hinge linking portions rotatably connecting adjacent supporters to one another, and having rolled and unrolled configurations; a flexible display panel having a display area disposed on the panel supporting portion and a non-display area outside the display area; and a driving module including a flexible circuit board having a bent portion and connected to the non-display area, and a printed circuit board (PCB) connected to the flexible circuit board. The plurality of supporters includes a housing disposed at an outermost side of the rollable display device. The housing has a hole through which the non-display area passes and a chamber communicating with the hole and receiving the driving module. A sealant is disposed between the flexible display panel and the housing at the outside of the hole.