OLED Display Housing with Bent Unit for Impact Resistance
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Solution Overview
Problem
Organic light emitting diode (OLED) displays are vulnerable to drop impact due to weak structural integrity, particularly when there are empty spaces in the panel assembly, leading to stress and damage from bending and distorting loads.
Innovation Solution
The electronic device incorporates a housing with a metal bottom and reinforced resin side walls, featuring a bent unit on the edge to absorb impact and minimize stress transfer to the panel assembly, along with a buffer member between the panel assembly and bezel to absorb bending and distorting loads, thereby enhancing mechanical strength and reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the OLED display uses thin substrates to reduce thickness and weight, then the display achieves lighter weight and thinner profile, but the structural strength and impact resistance deteriorate
Solution Approach 1:
The patent applies composite materials by combining metal (for the bottom panel providing rigidity and strength) with reinforced resin including glass fibers (for the side walls providing structural support). This composite construction allows the housing to maintain high strength and impact resistance while keeping the overall weight reduced, directly resolving the contradiction between lightweight design and impact resistance.
2Weight of moving object
If the panel assembly has empty spaces to reduce weight, then the display achieves lighter weight, but the structural integrity and drop impact resistance worsen
Solution Approach 1:
The bent unit protruding from the bottom panel serves as a pre-designed cushioning structure that absorbs impact energy before it reaches the OLED display. This beforehand cushioning mechanism is specifically designed to protect the panel assembly during drop impacts, resolving the contradiction between having empty spaces for weight reduction and maintaining drop impact resistance.
3Strength
If the housing uses metal materials to improve mechanical strength, then the structural strength improves, but the weight increases
Solution Approach 1:
The patent applies local quality by using metal material specifically for the bottom panel where high strength and rigidity are most needed for impact absorption, while using reinforced resin for the side walls. This localized material assignment optimizes the strength-to-weight ratio, achieving high housing strength without excessive weight increase.
Solution Approach 2:
The housing uses composite materials combining metal bottom panel with reinforced resin side walls. This composite construction allows different parts of the housing to have optimized properties - the metal bottom provides strength where needed while the resin side walls reduce overall weight, resolving the contradiction between housing strength and weight.
4Strength
If the bent unit is added to the bottom edge to absorb impact, then the impact resistance improves, but the device complexity increases
Solution Approach 1:
The bent unit is designed as a separate, modular component that can be integrated into the bottom panel through embedding. This segmentation allows the impact absorption function to be added without fundamentally redesigning the entire housing structure, thus improving impact resistance while minimizing the increase in device complexity.
Data Source
AI summary
An electronic device improves an impact-resistance characteristic of an organic light emitting diode (OLED) display. The electronic device includes an organic light emitting diode (OLED) display including a panel assembly for forming an organic light emitting element, and a housing including a housing main body for receiving the organic light emitting diode (OLED) display. The housing includes a housing main body including a first space for receiving the panel assembly and a second space for receiving a printed circuit board, an upper cover, and a lower cover. The housing main body includes a bottom formed to distinguish a first space and a second space in the housing, and also includes a bent unit on an edge, and a side wall in which the bent unit is buried to be combined with the edge of the bottom.