Notebook Display Casing Structure for Thin Antenna-Integrated Housings
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Solution Overview
Problem
The challenge is to create a display casing for notebook PCs that achieves a thin size and light weight while maintaining strength, as existing metallic casings with cutouts for antenna sensitivity compromise structural integrity and design flexibility.
Innovation Solution
A casing structure featuring a butt-joined combination of conductive and nonconductive resin regions, with a carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP) regions, where the CFRP region is central and the GFRP region forms the peripheral antenna mounting spaces, enhancing strength and antenna sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metallic display casing with cutout portions is used to secure antenna sensitivity, then antenna sensitivity is improved, but strength and structural integrity deteriorate
Solution Approach 1:
The display casing is segmented into multiple regions with different material properties: a first region made of conductive resin (carbon fiber reinforced plastic) and a second region made of nonconductive resin (glass fiber reinforced plastic). This segmentation allows the conductive region to provide antenna sensitivity while the nonconductive region maintains structural strength, eliminating the need for cutout portions in traditional metal casings.
Solution Approach 2:
The invention uses composite resin materials combining carbon fiber reinforced plastic (conductive) and glass fiber reinforced plastic (nonconductive). This composite approach enables simultaneous achievement of electrical conductivity for antenna sensitivity and mechanical strength for structural integrity, resolving the contradiction between antenna performance and casing strength.
2Weight of moving object
If the display casing is made thinner and lighter, then portability is improved, but structural strength deteriorates
Solution Approach 1:
The use of carbon fiber and glass fiber reinforced plastics provides high strength-to-weight ratio, enabling the casing to be both thin/light and structurally strong. These composite materials offer superior mechanical properties compared to traditional metals, achieving weight reduction without sacrificing strength.
Solution Approach 2:
Different regions of the casing are assigned different material qualities: the conductive resin region optimized for antenna sensitivity and the nonconductive resin region optimized for structural strength. This local differentiation allows the casing to meet multiple performance requirements simultaneously while maintaining overall thinness and light weight.
3Adaptability or versatility
If multiple antennas are mounted on the display casing to support broad frequency bands and high data transfer rates, then communication performance is improved, but device complexity increases
Solution Approach 1:
The conductive resin region serves multiple functions: it provides structural support, ensures antenna sensitivity for multiple antennas, and maintains electrical continuity. The integrated design of the casing with embedded antenna mounting spaces allows multiple antennas to be mounted without requiring separate structural elements, reducing overall device complexity while supporting broad frequency bands and high data transfer rates.
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
This configuration allows for a thinner, lighter display casing with improved antenna sensitivity and design flexibility, maintaining structural integrity by increasing the contact area of the joint portions and providing a dedicated space for antennas, thus overcoming the limitations of traditional metallic casings.
Implementation Method 1
a conductive resin region (103) formed of carbon fiber reinforced plastic
Implementation Method 2
a nonconductive resin region (101) formed of glass fiber reinforced plastic
Implementation Method 3
a resin member for covering a distal end part of a base member containing a fiber is bonded to the base member by means of adhesive
Data Source
AI summary
The invention provides a casing structure for an electronic apparatus that achieves a thin size and light weight. The casing structure is capable of accommodating a display module, and comprises a sidewall and a bottom surface in which a conductive resin region and a nonconductive resin region are butt joined in a curved line. The casing structure of the electronic apparatus does not become thick due to the butt joining even when the joint portions are in a projection area of the display module. Furthermore, on the display side of the casing structure, there is no need to have special frame members for securing strength in addition to the display casing. The display casing accommodates and protects the display module from an external pressing force and also has a design function that the outer surface of the casing resembles that of an outer surface of a conventional notebook PC.