Dual-Layer Stretchable Display Maintaining Fixed Pixel Density
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Solution Overview
Problem
Conventional stretchable display devices face limitations in maintaining a fixed pixel density as they expand, leading to compromised image quality and resolution.
Innovation Solution
The implementation of a dual-layer display system with an upper and lower layer of display elements on expandable substrates, where the upper layer obscures the lower layer at a smaller size, and as it expands, the lower layer becomes visible through gaps, maintaining a consistent pixel density across all positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a stretchable display device expands to increase display area, then the display area increases, but the pixel density decreases leading to compromised image quality
Solution Approach 1:
The display device is divided into multiple discrete display elements (pixels or sub-pixels) that are spatially separated by expandable substrate material. When the display expands, these segmented elements remain individually addressable and maintain their display characteristics, preventing the pixel density degradation that would occur in a continuous display structure.
Solution Approach 2:
The patent introduces a temporal dimension to the display structure by allowing display elements to be dynamically added or revealed during expansion. As the display expands, previously hidden display elements become visible and active, effectively increasing the display area without reducing the density of active pixels in the visible region.
2Adaptability or versatility
If the display area is increased through expansion, then the versatility of the device improves, but the fixed pixel density is compromised
Solution Approach 1:
The display device employs a dynamic architecture where the display area and active pixel elements can change configuration during operation. The expandable substrate allows the display to transition between compact and expanded states, with display elements being dynamically activated or deactivated to maintain optimal pixel density in the visible display region regardless of the overall display size.
Data Source
AI summary
The present disclosure is directed to systems and methods of forming an expandable display device capable of maintaining a fixed pixel density at any display area from a relatively smaller first display area to a relatively larger second display area. The expandable display device includes an upper display layer and a lower display layer. In a first display position, the display elements having a defined pixel density included in the upper display layer obscure the display elements included in the lower display layer. The upper display layer and lower display layers are disposed on expandable substrates capable of continuous displacement between the first and second display positions. In the second display position, the display elements included in the lower display layer are visible through gaps between the display elements included in the upper display layer. The resultant display provides a uniform pixel density at all displacements between the first and second display positions.