Flexible OLED Display Impact Protection via Electromagnetic Repulsion
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Solution Overview
Problem
Flexible and bendable OLED display devices suffer from poorer impact resistances, leading to reduced effectiveness due to excessive local stresses during testing.
Innovation Solution
A display module comprising a middle frame with a first electromagnetic member, an infrared transceiver member, and an actuation member on the side surfaces, and a second electromagnetic member under the backplate, which generates an electromagnetic force opposite to impacts when activated by the actuation member upon detecting an impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible and bendable materials are used to manufacture OLED display devices, then the display devices achieve bendability and thinness, but the impact resistance deteriorates
Solution Approach 1:
The patent applies beforehand cushioning by pre-installing electromagnetic members and impact detection sensors within the display device structure. When impact is detected, the system activates electromagnetic repulsion forces in advance to counteract the harmful impact, protecting the flexible display materials from damage before the impact can cause failure.
Solution Approach 2:
The patent converts the harmful impact force into a beneficial protective mechanism. The impact detection sensor detects the harmful impact, and the electromagnetic members generate repulsive forces that convert the harmful mechanical stress into a beneficial protective electromagnetic force, thereby protecting the flexible display structure.
2Strength
If electromagnetic members are added to protect against impact, then the impact resistance improves, but the device complexity increases
Solution Approach 1:
The electromagnetic members serve multiple functions: they provide structural support for the display device, generate protective electromagnetic forces during impact, and work in conjunction with the infrared transceiver for potential wireless communication or sensing. This multi-functionality reduces the need for separate dedicated impact protection components, thereby limiting the increase in device complexity.
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 electromagnetic force counteracts impact forces, preventing damage to the display module and ensuring normal operation by matching energized areas between corresponding electromagnetic members.
Implementation Method 1
the infrared receiving member is used to receive the infrared ray and determine a distance and a position of the infrared ray
Implementation Method 2
the actuation member is used to drive the first electromagnetic member and the second electromagnetic member to work after receiving the warning signal
Data Source
AI summary
A display module and a display device are provided. A first electromagnetic member is disposed on a middle frame, a second electromagnetic member is disposed under a backplate, and an actuation member controls the first electromagnetic member and the second electromagnetic member to work, generating an electromagnetic force generated between the first electromagnetic member and the second electromagnetic member, thereby subjecting the display module to an electromagnetic force opposite to an impact force. Therefore, the display module remains undamaged by an impact and can continue normal operation.