Light Shielding Layer Gradient Transmittance Edge Aliasing
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Solution Overview
Problem
The existing inkjet process for manufacturing electronic devices often results in poor inkjet quality at the edges, leading to aliasing phenomena that negatively impact consumer perception, and attempts to improve this by adjusting inkjet stroke and speed increase production time and cost, failing to meet actual requirements.
Innovation Solution
An electronic device and method featuring a light shielding layer with a gradient transmittance design, where the light penetration rate in the peripheral area is greater than in the main body area, achieved by varying the inkjet amount and light penetration rate of inks used in different areas of the inkjet head, effectively blurring the edge and reducing aliasing visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the inkjet stroke and inkjet speed are changed to improve edge inkjet quality, then the aliasing phenomenon is reduced, but the inkjet time greatly increases
Solution Approach 1:
The patent applies local quality by creating a light shielding layer with different light penetration rates in different areas. The peripheral area has a higher light penetration rate than the main body area, which locally optimizes the edge appearance without requiring changes to the overall inkjet process parameters, thus avoiding increased production time
Solution Approach 2:
The patent changes the light penetration rate parameter of the light shielding layer in different areas to solve the aliasing problem. By adjusting the inkjet amount to create varying light penetration rates (higher in peripheral area, lower in main body area), the edge quality is improved without modifying the inkjet stroke or speed parameters
2Manufacturing precision
If the inkjet stroke and inkjet speed are changed to improve edge inkjet quality, then the aliasing phenomenon is reduced, but the production capacity and production cost increase
Solution Approach 1:
The patent implements local quality differentiation in the light shielding layer, where the peripheral area has a higher light penetration rate and the main body area has a lower light penetration rate. This local optimization improves edge appearance without requiring global process parameter changes that would reduce production capacity
Solution Approach 2:
The patent performs preliminary action by pre-designing the light shielding layer with gradient light penetration characteristics before the inkjet process. The peripheral area is pre-configured with higher light penetration rate, which naturally masks edge aliasing without requiring post-processing or repeated inkjet passes, thereby maintaining production efficiency
Data Source
AI summary
An electronic device includes a substrate and a light shielding layer. The light shielding layer is arranged on the substrate. The light shielding layer has an edge, a main body area, and a peripheral area between the edge and the main body area, wherein a light penetration rate of the light shielding layer in the peripheral area is greater than a light penetration rate of the light shielding layer in the main body area.