Display Supporting Member with Density Segmentation for Weight Reduction
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Solution Overview
Problem
Flexible display apparatuses face weight increase due to traditional supporting structures made of dense materials like stainless steel, affecting user experience and device portability.
Innovation Solution
A supporting member with a bendable portion and a supporting portion of different densities, where the bendable portion is made of a metal material and the supporting portion is made of carbon fiber prepreg or plastic, connected through grooves and protrusions, reducing overall weight and improving durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional supporting structure made of stainless steel or alloy materials is used, then structural strength and durability are improved, but the weight of the display apparatus increases
Solution Approach 1:
The supporting member is divided into two distinct parts: a bendable portion made of metal material (first material) and a supporting portion made of carbon fiber prepreg or plastic (second material). This segmentation allows each part to be optimized for its specific function - the metal portion provides strength where needed while the lighter material reduces overall weight.
Solution Approach 2:
Different regions of the supporting member use different materials with different densities. The bendable portion uses denser metal material for structural integrity, while the supporting portion uses lighter carbon fiber or plastic material to reduce weight. This local differentiation resolves the contradiction between strength and weight by placing materials strategically where they are most needed.
Solution Approach 3:
The supporting member combines multiple materials (metal and carbon fiber prepreg or plastic) to create a composite structure. This composite approach allows the piece to achieve both high strength and low weight by leveraging the advantageous properties of each material - the strength of metal and the lightness of carbon fiber or plastic.
2Stability of the object's composition
If a supporting structure made of dense materials is used, then structural integrity is maintained, but device portability deteriorates
Solution Approach 1:
By segmenting the supporting member into a bendable portion and a supporting portion made of different materials, the design maintains structural integrity in critical areas while reducing overall weight to improve portability. The metal bendable portion ensures structural stability where needed, while the lighter supporting portion reduces the device weight for better portability.
Solution Approach 2:
The supporting member employs local quality differentiation by using denser metal material in the bendable portion for structural integrity and lighter carbon fiber or plastic material in the supporting portion for weight reduction. This localized material selection balances structural stability requirements with portability goals.
3Ease of manufacture
If the same material is used for the entire supporting member, then manufacturing simplicity is maintained, but weight optimization is lost
Solution Approach 1:
The supporting member is segmented into two portions made of different materials, allowing each part to be manufactured separately using optimal processes for its material type, then assembled together. This segmentation enables weight optimization through material differentiation while maintaining manufacturing feasibility through modular construction.
Solution Approach 2:
The use of composite materials (metal and carbon fiber prepreg or plastic) allows for weight optimization by selecting the lightest appropriate material for each function. The first material (metal) and second material (carbon fiber or plastic) are chosen for their optimal weight-to-strength ratios, achieving weight reduction while maintaining structural performance.
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 reduces the weight of the display apparatus while maintaining structural integrity and durability, enhancing user experience and portability by using materials with different densities and efficient processing methods.
Implementation Method 1
The first protrusion is matched and connected with the first groove through hot pressing or bonding.
Implementation Method 2
The first protrusion is matched and connected with the first groove through hot pressing or bonding.
Implementation Method 3
each second groove is filled with the part of the material of the supporting portion by hot pressing the part of the material of the supporting portion into each second groove
Implementation Method 4
each second groove is filled with the part of the material of the supporting portion by embedding M second protrusions on the first protrusion one by one into the M second grooves
Data Source
AI summary
A display apparatus, a supporting member provided in the display apparatus, a method of manufacturing a supporting member, and an electronic device are provided. The display apparatus includes: a display panel, including a bendable region and a non-bending region; and a supporting member on a back of the display panel. The supporting member includes: a bendable portion configured to support the bendable region, where at least one side of the bendable portion is provided with a first groove; and a supporting portion connected to the bendable portion through the first groove, and configured to support the non-bending region. A density of a material of the bendable portion is different from a density of a material the supporting portion.