Decorative Sheet Micro-Structure for 3D Visual Effect
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing decorative sheets for electronic products lack a three-dimensional effect and suffer from poor resolution, requiring the use of brightening inks that increase costs and environmental pollution, and result in decreased definition over time due to oxidation.
Innovation Solution
A decorative sheet comprising a transparent protective layer, a graph-text structure layer, and a reflective layer, where the graph-text structure layer consists of micro-structures that vary in size, shape, spacing, height, and arrangement to represent lightness changes, creating a three-dimensional image without the need for brightening inks, enhancing resolution and maintaining clarity from different angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If intaglio printing technique is used to create graph-text structure layer, then manufacturing process is simple, but resolution is poor and three-dimensional effect is lost
Solution Approach 1:
The graph-text structure layer is segmented into multiple sub-blocks, each corresponding to a pixel or graphical element. Each sub-block contains multiple micro-structures (convex or concave) that can be independently configured to represent different lightness levels, enabling high-resolution imaging while maintaining manufacturing simplicity through modular fabrication processes.
Solution Approach 2:
The patent transitions from planar intaglio printing to three-dimensional micro-structures by introducing height variations (convex or concave shapes) in the graph-text structure layer. This dimensional enhancement enables the representation of lightness changes through structural geometry rather than relying solely on material composition, achieving both high resolution and three-dimensional effect.
2Illumination intensity
If brightening inks are used to enhance lightness of graphs and text, then visual brightness is improved, but manufacturing cost increases and environmental pollution occurs
Solution Approach 1:
The patent replaces chemical brightening inks with physical micro-structures (convex or concave shapes) that manipulate light through reflection and refraction. The lightness of graphical elements is controlled by the geometry, size, and arrangement of these micro-structures rather than by chemical composition, eliminating the need for expensive and environmentally harmful brightening materials while maintaining visual brightness.
3Reliability
If brightening inks or shining crystals are added to enhance definition, then lightness is improved initially, but oxidation occurs over time and definition decreases
Solution Approach 1:
The patent uses inert structural features (convex or concave micro-structures) made from the same film material rather than susceptible chemical additives. These structural lightness controllers do not oxidize or degrade over time, ensuring long-term stability and consistent visual appearance without the reliability issues associated with chemical brightening agents.
4Shape
If planar graph-text structure is used, then manufacturing is simple, but three-dimensional effect cannot be achieved
Solution Approach 1:
The patent introduces curvature and three-dimensional geometry into the graph-text structure layer by forming convex or concave micro-structures. These curved surfaces manipulate light reflection and refraction to create realistic three-dimensional effects, including highlights, shadows, and depth perception, transforming flat printed graphics into visually立体 images without excessive structural complexity.
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 decorative sheet achieves a three-dimensional effect with enhanced resolution and clarity, reducing material costs and environmental impact by using micro-structure variations to simulate lightness changes, providing a dynamic and continuous visual experience without the use of brightening inks.
Implementation Method 1
light rays reflected or refracted by the micro-structure to the graph-text sub-block represent the corresponding lightness of the three-dimensional material object
Implementation Method 2
light rays reflected or refracted by the micro-structure to the graph-text sub-block represent the corresponding lightness of the three-dimensional material object
Data Source
AI summary
The present invention discloses a decorative sheet, an electronic apparatus cover plate and an electronic apparatus. The decorative sheet is used for forming a three-dimensional image to represent a three-dimensional material object. The decorative sheet comprises a transparent protective layer, a graph-text structure layer and a reflective layer; the graph-text structure layer and the reflective layer are located on a same side of the transparent protective layer; the graph-text structure layer comprises a number of graph-text sub-blocks which form the three-dimensional image and each of which comprises a micro-structure that represents corresponding lightness of the three-dimensional material object. The lightness of light rays emitted by each graph-text sub-block comprising the micro-structure is different, and thus a change of lightness is produced among the graph-text sub-blocks. By using the lightness change among the graph-text sub-blocks to represent the lightness change of the three-dimensional material object in a natural state, the graphs and text displayed on the graph-text structure layer are enabled to have a three-dimensional effect.