Glass-Ceramic Shell Structure for Optical Interference Blocking

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing enclosure structures for electronic devices using transparent materials suffer from interference signals that decrease the accuracy of optical signal monitoring due to the transmission of interference signals through transition areas between the light emitter and receiver projections.

Innovation Solution

The enclosure structure is designed with a first area of high transmittance and a second area of low transmittance, formed integrally with glass-ceramic and a metal cluster, where the metal cluster acts as a crystal nucleus to enhance crystallinity and block interference signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a transparent material is used for the enclosure structure, then the effective optical signal can be transmitted, but interference signals are also transmitted which decreases monitoring accuracy

Engineering Contradiction:
Improvemonitoring accuracyVSAvoidinterference signal
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The enclosure structure is divided into different regions: a first region with high transmittance for effective signal transmission and a second region with low transmittance for blocking interference signals. This local differentiation of optical properties allows the structure to simultaneously transmit useful signals while blocking harmful interference.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The enclosure structure uses a composite material system consisting of glass-ceramic base material and metal clusters. The glass-ceramic provides structural integrity and controlled transmittance, while the metal clusters enhance the blocking of interference signals through plasmonic effects and absorption, creating a material with tailored optical filtering properties.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If a metal cluster is added to the enclosure structure to block interference signals, then the transmittance of the second area decreases, but the structural integrity must be maintained

Engineering Contradiction:
Improveinterference signal blockingVSAvoidstructural integrity
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The combination of glass-ceramic and metal clusters creates a composite structure where the glass-ceramic matrix provides mechanical strength and structural integrity, while the dispersed metal clusters provide optical filtering functionality. The composite architecture allows both requirements to be satisfied simultaneously.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The metal clusters are localized specifically in the second region of the enclosure structure where interference signal blocking is needed, rather than uniformly distributing them throughout the entire structure. This localized placement maintains structural integrity in regions where strength is critical while providing interference blocking where needed.

Inventive Principle:
Principle #3Local quality

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 integrally formed structure with glass-ceramic and metal clusters effectively reduces interference signals, maintaining mechanical integrity and improving signal accuracy by blocking interference while allowing effective optical signal transmission.

Implementation Method 1

The metal cluster is used as a crystal nucleus of the glass-ceramic, and helps form the glass-ceramic, so that the second area may have a large crystallinity

Methodology Applied
Scientific EffectCrystallization: Crystallisation

Implementation Method 2

the photosensitive material includes a nucleating metal, the photosensitive material converts the nucleating metal that exists in a form of a compound into a nucleating metal in an atomic state under an action of an optical signal

Methodology Applied
Scientific EffectPhotochemical conversion: Photo-oxidation

Implementation Method 3

The second area has a large crystallinity, and correspondingly, the second area has a small transmittance. The second area having a small transmittance may block propagation of an interference signal inside the enclosure structure

Methodology Applied
Scientific EffectOptical absorption: Absorption (EM radiation)

Data Source

PatentEP4651647A1Shell structure, shell, electronic device, and preparation method for shell structure
Publication Date: 2025.11.19 HUAWEI TECH CO LTD
  • EP4651647A1 patent drawingFigure 1
  • EP4651647A1 patent drawingFigure 2~4
  • EP4651647A1 patent drawingFigure 5~9

AI summary

This application discloses an enclosure structure, an enclosure, an electronic device, and an enclosure structure preparation method. The enclosure structure may include a first area and a second area. The first area and the second area are of an integrally formed structure. Therefore, the enclosure structure has good mechanical performance. The second area includes glass-ceramic and a metal cluster. The metal cluster is used as a crystal nucleus of the glass-ceramic, and helps form the glass-ceramic, so that the second area may have a large crystallinity. A crystallinity is inversely related to a transmittance. The second area has a large crystallinity, and correspondingly, the second area has a small transmittance. The second area having a small transmittance may block propagation of an interference signal to an extent, to reduce the interference signal.