Display Device Actuator Segmentation for Localized Vibration Control
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Solution Overview
Problem
Existing display devices face challenges in providing user convenience through vibration feedback, particularly in mobile devices like smartphones and tablets, due to the difficulty in controlling vibrations selectively and preventing vibration spread across the device surface.
Innovation Solution
A display device design featuring an actuator unit with multiple actuator members generating vibrations, a support unit with spaced-apart support members to receive these vibrations, and a circuit and battery unit positioned to prevent vibration spread, all integrated with a flexible display panel and a vibration-blocking back cover to enhance user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple actuator members are used to generate vibrations, then vibration feedback capability is improved, but vibration spread across the device surface occurs
Solution Approach 1:
The support unit is divided into multiple support members that are spaced apart from each other, with each support member corresponding to a specific actuator member. This segmentation isolates the vibration paths, allowing multiple actuators to operate simultaneously without causing vibration spread across the device surface.
Solution Approach 2:
Each support member is designed to contact a specific actuator member and transfer vibration locally to the display panel at a predetermined position. This localized vibration transfer ensures that vibration feedback is delivered to specific areas without spreading to other regions, enabling precise control over vibration locations.
2Ease of operation
If support members are spaced apart to prevent vibration spread, then vibration control is improved, but device structure becomes more complex
Solution Approach 1:
The support members serve multiple functions: they support the actuator members, transfer vibrations from the actuators to the display panel, and prevent vibration spread through their spaced-apart configuration. This multi-functionality reduces the need for additional components, thereby limiting structural complexity despite the spaced-apart arrangement.
3Ease of operation
If actuator members are disposed to face the display panel, then vibration feedback to user is improved, but power consumption increases
Solution Approach 1:
Instead of using a single actuator that must generate strong vibrations across the entire display panel, the invention uses multiple actuator members that are spaced apart and targeted at specific areas. Each actuator operates with partial action, generating vibrations only where needed, which reduces the total power consumption while maintaining effective user feedback.
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 allows for selective vibration in specific areas of the display device, improving user convenience by minimizing power consumption and maintaining the device's external appearance while preventing vibration transmission to the back cover.
Implementation Method 1
an actuator unit including a plurality of actuator members generating vibrations
Implementation Method 2
a support unit contacting the actuator unit to receive a vibration generated from the actuator unit
Data Source
AI summary
A display device includes a display panel, an actuator unit including a plurality of actuator members generating vibrations and disposed to face one side of the display panel, and a support unit contacting the actuator unit to receive a vibration generating from the actuator unit and including a plurality of support members disposed to respectively correspond to the plurality of actuator members and spaced apart from each other.