Foldable Display Device Component Area Overlap
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Solution Overview
Problem
Current display devices face challenges in expanding their display area while accommodating electronic components, as existing designs often compromise on either functionality or aesthetics, and there is a need for innovative solutions to integrate components seamlessly within the display panel.
Innovation Solution
A foldable display device design featuring a display panel with multiple component areas and a main display area, where auxiliary sub-pixels and transmissive portions are strategically arranged to overlap and optimize light transmittance, allowing for component integration while maintaining a high display area, and a rollable display device with a module portion and interval adjuster to adjust the component's position as the panel is unrolled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display area is expanded to include component areas, then the functional integration is improved, but the light transmittance and acoustic transmittance may be compromised
Solution Approach 1:
The patent applies local quality by making the component area partially transparent with optimized transmittance characteristics. Specifically, the component area is designed to transmit at least 40% of incident light and acoustic waves, creating a localized optical property that differs from fully opaque components. This allows the component area to maintain its functional role while preserving sufficient light and sound transmission for display and audio functions.
2Device complexity
If components are integrated within the display panel, then the device complexity is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent resolves the manufacturing precision challenge by transitioning from planar component placement to three-dimensional stacking. The component is positioned in a third dimension (vertical layer) relative to the display panel, allowing overlap in the horizontal plane while maintaining physical separation through vertical layering. This dimensional approach enables component integration without requiring extremely precise lateral placement accuracy.
3Adaptability or versatility
If the display panel is made foldable or rollable for flexible form factors, then the adaptability is improved, but the reliability and durability may deteriorate
Solution Approach 1:
The patent applies the nesting principle by integrating the component within the layered structure of the foldable display panel. The component is embedded in the third dimension among multiple layers of the display structure, allowing it to move and deform with the panel during folding or rolling. This nested configuration enables the component to benefit from the structural protection and flexibility of the surrounding display layers.
Data Source
AI summary
A foldable display device includes a display panel including a front surface and a rear surface opposite the front surface, the front surface including a first component area including a first transmissive portion, a second component area including a second transmissive portion, and a main display area at least partially surrounding the first component area and the second component area, wherein, in a state in which the foldable display device is folded about a first folding axis that crosses the main display area such that two areas of the front surface or two areas of the rear surface face each other, the first component area and the second component area overlap each other on a plane.