Stretchable Display Subpixel Control for Resolution Consistency
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Solution Overview
Problem
Stretchable display apparatuses experience a decrease in display resolution when stretched due to increased inter-subpixel distance, leading to a discrepancy in image display resolution between the non-stretched and stretched states.
Innovation Solution
A stretchable display apparatus comprising multiple stacked panels with interleaved active and standby subpixels of different colors, where the active subpixels emit light in both states and standby subpixels adjust their emission to maintain consistent image display resolution, with a controller managing subpixel activity based on the apparatus's stretch state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display apparatus is stretched to increase its area, then the display area is expanded, but the inter-subpixel distance increases causing display resolution to decrease
Solution Approach 1:
The display panel is divided into multiple subpixels (first subpixels, second subpixels, third subpixels) of different colors arranged in a matrix. This segmentation allows the display to maintain resolution by selectively controlling which subpixels are active, even when the overall area changes due to stretching.
Solution Approach 2:
The patent introduces a temporal dimension to the display structure by having subpixels that can switch between active and standby states. This allows the display to effectively increase its resolving power over time by activating different subpixel combinations, compensating for the spatial resolution loss caused by stretching.
2Manufacturing precision
If standby subpixels are activated in the stretched state to compensate for resolution loss, then display resolution is maintained, but energy consumption increases
Solution Approach 1:
The display employs periodic refresh cycles where subpixels are selectively activated and deactivated. In the stretched state, the controller activates standby subpixels in a periodic manner to maintain resolution, rather than keeping all subpixels continuously active, thereby reducing overall energy consumption while preserving display quality.
Solution Approach 2:
The controller dynamically changes the operational parameters of subpixels based on the stretch state. When stretched, it adjusts which subpixels are active and modifies their emission characteristics to maintain resolution. This parameter adjustment optimizes the balance between resolution maintenance and energy consumption by not activating all standby subpixels simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution maintains consistent image display resolution in both non-stretched and stretched states by strategically controlling the emission of subpixels, ensuring that the display quality remains unchanged despite stretching.
Implementation Method 1
the plurality of first active subpixels of the first color, the plurality of second active subpixels of the second color, and the plurality of third active subpixels of the third color are configured to emit light for image display
Data Source
AI summary
A stretchable display apparatus having a substantially non-stretched state and a stretched state is provided. The stretchable display apparatus includes a first stretchable display panel including a plurality of first active subpixels of a first color and a plurality of first standby subpixels of the first color, a second stretchable display panel including a plurality of second active subpixels of the second color and a plurality of second standby subpixels of the second color, and a third stretchable display panel including a plurality of third active subpixels of the third color and a plurality of third standby subpixels of the third color. In the substantially non-stretched state, the plurality of first standby subpixels of the first color, the plurality of second standby subpixels of the second color, and the plurality of third standby subpixels of the third color are configured to be in a standby state and not emit light.