Flexible Display Second Support Plate Holes Modulus
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Solution Overview
Problem
Existing display devices with flexible panels face challenges in achieving improved surface grade and durability while facilitating sliding and expansion/collapse modes without compromising display quality.
Innovation Solution
A display device design featuring a flexible display panel with a second support plate having a metal material, a plurality of holes, and a rotating member, which allows for sliding and expansion/collapse modes by adjusting the modulus and structural integrity through hole formation and adhesive layers, enhancing surface grade and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible display panel is used to enable sliding and expansion/collapse modes, then portability and convenience are improved, but surface grade and durability deteriorate
Solution Approach 1:
The patent uses a composite structure combining a flexible display panel with a rigid support plate. The support plate is made of metal material (such as stainless steel or aluminum alloy) to provide durability and surface grade, while the flexible display panel enables sliding and expansion/collapse modes. This composite approach allows the device to achieve both flexibility for portability and rigidity for durability.
Solution Approach 2:
The support plate is designed with a specific thickness (0.5mm to 2mm) and material properties localized to the rear surface of the display panel. This localized reinforcement provides the necessary structural support and durability in the areas where the flexible panel needs additional strength, without affecting the overall flexibility of the display.
2Strength
If the support plate thickness is increased to improve durability, then impact resistance is improved, but the modulus increases making sliding difficult
Solution Approach 1:
The patent optimizes the thickness parameter of the support plate within a specific range (0.5mm to 2mm) to achieve the right balance. By controlling the thickness within this range, the support plate provides sufficient impact resistance while maintaining a modulus that allows for smooth sliding operation. The metal material selection also contributes to achieving the desired modulus within this thickness range.
Solution Approach 2:
The support plate provides localized structural support with optimized thickness and material properties, ensuring that the reinforcement is concentrated where needed for impact resistance, while the overall structure remains flexible enough to enable sliding motion.
3Ease of operation
If holes are formed in the support plate to reduce modulus for sliding, then sliding is facilitated, but structural integrity may worsen
Solution Approach 1:
The support plate incorporates a porous structure with holes formed at regular intervals. This porous design reduces the overall modulus of the support plate, facilitating smooth sliding motion. The holes are strategically positioned and sized to maintain sufficient structural integrity while reducing rigidity to enable flexibility and sliding.
Solution Approach 2:
The support plate is segmented with holes distributed across its surface, dividing the continuous solid structure into a pattern of solid and void regions. This segmentation reduces the modulus by creating stress concentration points that allow for more flexible deformation during sliding, while the overall segmented structure maintains sufficient integrity through the distributed pattern of holes.
Data Source
AI summary
A display device includes: a display panel including a first area and a second area extending from the first area in a first direction, a first support plate disposed on a bottom of the display panel in the first area, a second support plate disposed on a bottom of the display panel in the second area, and a plurality of holes formed in the second support plate and extending substantially perpendicular to the first direction.