Display Window Color Layer Segmentation for Pigment Agglomeration
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Solution Overview
Problem
Display device windows coated with particulates like metal flakes or pearls, when combined with color ink, often suffer from agglomeration due to Van der Waals forces, leading to appearance defects such as stains and thickness deviations during printing, which affect the appearance and perceived beauty of the display device.
Innovation Solution
A window structure for display devices comprising a transparent ink layer with dispersed pigment particulates, a solid color layer, and a shield ink layer, where the pigment particulates are separated from the color ink, reducing agglomeration and preventing stains, and manufactured using methods like solution coating or film attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If pigment particulates are combined with color ink to improve appearance and perceived beauty, then the aesthetic quality is enhanced, but pigment agglomeration occurs due to Van der Waals forces causing stains and thickness deviations
Solution Approach 1:
The color layer is divided into multiple sub-layers: a first color sub-layer containing pigment particulates and transparent ink, and a second color sub-layer containing solid color ink. This segmentation separates the aesthetic function (pigment particulates in first sub-layer) from the color uniformity function (solid color ink in second sub-layer), resolving the contradiction between appearance quality and manufacturing precision
Solution Approach 2:
The patent uses composite material structures where the first color sub-layer combines pigment particulates with transparent ink, and the second color sub-layer uses solid color ink. This composite approach allows the pigment particulates to provide aesthetic appeal while the solid color ink ensures uniform color distribution, eliminating stains and thickness deviations
2Manufacturing precision
If multiple layers are stacked to prevent pigment agglomeration and stains, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The color layer is segmented into two functional sub-layers: the first sub-layer handles pigment dispersion and aesthetic appearance, while the second sub-layer ensures color uniformity. This targeted segmentation achieves manufacturing precision without unnecessary complexity, as each sub-layer has a specific function rather than creating a complex multi-layer structure for all purposes
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 enhances the appearance and perceived beauty of the display device while minimizing stains and improving production efficiency by maintaining a uniform color and preventing pigment agglomeration, resulting in a more effective and aesthetically pleasing window design.
Implementation Method 1
Display device windows coated with particulates like metal flakes or pearls, when combined with color ink, often suffer from agglomeration due to Van der Waals forces
Data Source
AI summary
A window for a display device includes a display device window mother substrate; and a color layer on the display device window mother substrate. The color layer includes a transparent ink layer on the display device window mother substrate and including a pigment particulate, a solid color layer on the transparent ink layer, and a shield ink layer on the solid color layer.