Rollable Display Transparent Protection Film Spacing
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Solution Overview
Problem
Rollable display devices with flexible panels are prone to damage and deformation due to external impacts, which can lead to insulation deterioration and breakage of the thin glass substrates, especially when bent excessively.
Innovation Solution
A rollable display device design featuring a flexible display panel with a transparent protection film and a fixing structure that includes a coupling part and a weight part, where the transparent protection film is spaced away from the panel to absorb and disperse external impacts, and a supporting element on the non-display surface to reduce warpage and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a thin glass substrate is used for the flexible display panel to maintain transmittance, then the transmittance is preserved, but the substrate becomes easily broken by small impacts
Solution Approach 1:
The patent uses a composite structure combining a thin glass substrate with a flexible substrate and transparent protection film. The thin glass substrate (first flexible substrate) maintains transmittance, while the flexible substrate and protection film provide impact resistance, creating a composite system that resolves the contradiction between transparency and durability
Solution Approach 2:
The patent introduces a transparent protection film and flexible substrate that can deform under impact to absorb stress, protecting the thin glass substrate from breaking while maintaining the overall transparency of the display panel
2Ease of operation
If the flexible display panel is allowed to bend excessively when wound on the panel roller, then the portability is improved, but the stress between stacked layers causes shape deformation and insulation deterioration
Solution Approach 1:
The patent introduces a transparent protection film that acts as a cushioning layer between the flexible display panel and the external environment. This protection film prevents excessive bending stress from being directly transmitted to the stacked layers, thereby maintaining insulation integrity while allowing the panel to be wound for portability
Data Source
AI summary
A rollable display device is provided. The rollable display device may include a flexible display panel. The flexible display panel may be wound or unfolded on a panel roller according to a user's request in order to improve portability and space usability. The rollable display device may further comprise a transparent protection film disposed on a display surface of the flexible display panel. In the rollable display device, the transparent protection film may be spaced away from the flexible display panel. Thus, the rollable display device may minimize damage to the flexible display panel due to the external impact.