Tactile Display Support Structure for Vibration Damage Control
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Solution Overview
Problem
Conventional display apparatuses face damage from excessive displacement and large acceleration due to inadequate support mechanisms, which can lead to damage of vibration elements and reduced reliability, especially in applications like in-vehicle equipment.
Innovation Solution
The display apparatus employs an elastic support system with U-shaped and S-shaped spring portions to elastically support the display substrate, combined with vibration members that include piezoelectric elements, to absorb and distribute vibration forces, thereby restricting excessive displacement and protecting the vibration elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the display substrate is rigidly fixed to prevent displacement, then stability is improved, but the vibration elements become susceptible to damage from external forces and acceleration
Solution Approach 1:
The patent uses elastic support members with spring portions (U-shaped and S-shaped configurations) to provide flexible support for the display substrate. These elastic members allow controlled displacement while maintaining stability, preventing excessive movement that would damage vibration elements during drops or high acceleration events.
Solution Approach 2:
The elastic support members are designed to provide preemptive cushioning by absorbing impact forces before they reach the vibration elements. The spring portions are configured to compress and deform during external shocks, protecting the vibration elements from damage before the harmful effects occur.
2Reliability
If the display substrate is elastically supported to absorb vibration, then reliability of vibration elements is improved, but excessive displacement may occur under large acceleration
Solution Approach 1:
The elastic support members with spring portions provide flexible support that allows controlled displacement while maintaining stability. The U-shaped and S-shaped spring portions are designed with specific geometric configurations that provide elastic compliance for vibration absorption while limiting excessive displacement through their structural characteristics.
Solution Approach 2:
The patent changes the physical parameters of the support system by introducing elastic support members with specific spring constants and geometric configurations. The U-shaped and S-shaped spring portions are designed with optimized dimensions and material properties to provide appropriate stiffness characteristics that balance vibration absorption and displacement control.
3Device complexity
If simple support structures are used to reduce complexity, then device complexity is reduced, but the ability to protect against vibration damage is insufficient
Solution Approach 1:
The patent employs elastic support members with spring portions that provide sophisticated vibration protection through their elastic deformation characteristics. The U-shaped and S-shaped configurations offer enhanced protection capabilities while maintaining relatively simple structural forms that can be integrated into the display device without excessive complexity.
Solution Approach 2:
The support structure is segmented into multiple elastic support members, each with U-shaped and S-shaped spring portions. This segmentation allows distributed vibration absorption and protection throughout the display substrate support system, providing comprehensive protection without requiring a single complex protective mechanism.
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
This configuration enhances the reliability of the display apparatus by reducing the likelihood of damage from vibrations and external forces, ensuring stable operation even in applications prone to frequent vibrations, such as in-vehicle equipment.
Implementation Method 1
elastic support members 40...U-shaped spring portions 44a and S-shaped spring portions 44b...absorb and distribute vibration forces, thereby restricting excessive displacement
Implementation Method 2
vibration members 50 including piezoelectric elements...generate a sound by vibrating a display substrate or to present a tactile sensation generated by vibration
Data Source
Figure 1
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Figure 3~5
AI summary
Damage to a vibrator is reduced, and reliability of a display apparatus of a tactile sensation transmitting type is improved. The display apparatus includes: a display substrate having an operation surface; a support arranged spaced apart from the display substrate on an opposite side from the operation surface of the display substrate; a vibrator that is arranged between the display substrate and the support and configured to vibrate the display substrate: and an elastic support member that extends from a display substrate side surface of the support to a surface of the support on an opposite side from the display substrate in a manner wrapping around the support, and has one edge fixed to the surface of the support on the opposite side from the display substrate and the other edge elastically supporting the display substrate. The support includes a displacement restriction portion to which a portion of the elastic support member abuts, and which is configured to restrict displacement of the elastic support member in a direction perpendicular to the operation surface.