Double-Shot Button Opaque Insert for Clear Symbol Boundaries
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Solution Overview
Problem
Double-shot molded buttons designed for thinner electronic devices suffer from a projection image of the base portion being visible on the operation surface, causing blurred boundaries around the symbols, especially when the main portion is made of translucent materials.
Innovation Solution
A double-shot molded button design where the orthographic projection image of the inserted portion is enclosed within the exposed surface of the operation surface, using a combination of opaque and translucent materials, and a method involving injecting a first material to form the inserted portion and a second material to form the main portion surrounding it, ensuring the projection image is covered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the button is designed thinner to accommodate thinner electronic devices, then the button thickness is reduced, but the projection image of the base portion becomes visible on the operation surface causing blurred boundaries
Solution Approach 1:
The patent applies local quality by making the inserted portion opaque while the main portion can be translucent. This localized opacity in the inserted portion blocks the projection image of the base portion, preventing it from appearing on the operation surface and thus maintaining clear symbol boundaries even in thin button designs.
2Illumination intensity
If the main portion is made of translucent materials, then the aesthetic appearance is improved, but the projection image of the base portion becomes more visible on the operation surface
Solution Approach 1:
The patent uses local quality by creating a contrast between the translucent main portion and the opaque inserted portion. The translucent main portion provides aesthetic appearance and light transmission, while the opaque inserted portion locally blocks the projection image, ensuring clear symbol boundaries are maintained despite the translucency of the main portion.
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 effectively prevents the projection image from blurring the boundaries of the symbols, maintaining a clear and defined operation surface while allowing for a secure and aesthetically pleasing attachment to electronic devices.
Implementation Method 1
injecting a first material into a first mold to form at least one inserted portion
Implementation Method 2
injecting a second material into the second mold to form a main portion, the main portion surrounding the inserted portion
Data Source
AI summary
A double-shot molded button includes a main portion including an operation surface and at least one inserted portion embedded in the main portion. The inserted portion includes an exposed surface exposed from the operation surface to configure a symbol for denoting an operation function and being pressed. An orthographic projection image of the inserted portion on the exposed surface is enclosed within the exposed surface. A method for making the double-shot molded button is also provided.