Self-Adaptive Ink Layering for Dual-Lighting Signage
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Solution Overview
Problem
Existing signage technologies, particularly backlit posters, face challenges in maintaining optimal color representation under both frontlit and backlit conditions, with prior solutions either being intermediate and unsatisfactory or requiring complex alignment processes that impact throughput.
Innovation Solution
A self-adaptive image system is implemented by depositing a layer of white ink between two ink layers on a substrate, allowing independent color management for each layer to optimize color representation under both lighting conditions, with the top layer dominant in frontlit scenarios and the bottom layer reinforcing colors in backlit scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single ink layer is printed on the substrate, then the printing process is simple and fast, but the color representation is compromised under either frontlit or backlit conditions
Solution Approach 1:
The ink layer is segmented into two distinct layers: a first ink layer printed on the substrate and a second ink layer printed on top of the white ink layer. Each layer is optimized for different lighting conditions, with the bottom layer providing color saturation for backlit views and the top layer providing color accuracy for frontlit views. This segmentation allows the system to achieve optimal color representation in both lighting scenarios while maintaining a relatively simple printing process.
2Manufacturing precision
If printing images for both frontlit and backlit conditions, then color representation is optimized for both conditions, but the alignment complexity increases and impacts throughput
Solution Approach 1:
Instead of attempting to align multiple images horizontally or positionally, the solution transitions to a vertical dimensional approach by printing the first ink layer and then printing the second ink layer on top of a white intermediate layer. This vertical stacking in the Z-dimension eliminates the need for complex horizontal alignment processes, as each layer is independently optimized and stacked sequentially, thereby reducing alignment complexity while maintaining color representation quality.
3Device complexity
If using intermediate color profiles for both lighting conditions, then a single ink layer can be used, but the color representation is suboptimal for both frontlit and backlit scenarios
Solution Approach 1:
The patent applies local quality by assigning different color profiles to different spatial locations (layers) of the printed material. The first ink layer uses a color profile optimized for backlit conditions, while the second ink layer uses a color profile optimized for frontlit conditions. This localized optimization of color properties in different layers allows each layer to perform its specific function optimally, achieving superior color representation in both lighting scenarios compared to using a single intermediate profile.
Data Source
AI summary
Implementations disclose a method and system for providing a self-adaptive image. According to one implementation, a first non-white ink layer on is deposited on a substrate. Furthermore, a white ink layer is deposited over the first non-white ink layer and below a second non-white ink layer deposited thereon.