Display Device Magnetic Haptic Sound Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices face challenges in integrating sound and haptic feedback without increasing the front size, which limits their design flexibility and functionality, especially in devices like smartphones where space is critical.
Innovation Solution
A display device design that incorporates an electronic permanent magnet and a vibrator, where the magnet switches between activation and inactivation states to generate magnetic forces, allowing for sound output when activated and haptic feedback when deactivated, eliminating the need for a front speaker and enhancing waterproofness and dustproofness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a front speaker is integrated into the display device, then sound output capability is improved, but the front size and design flexibility are limited
Solution Approach 1:
The patent combines the sound output function with the existing vibrator component by utilizing magnetic interaction between an electronic permanent magnet and the vibrator. This merging eliminates the need for a separate front speaker, achieving sound output capability without increasing front size.
Solution Approach 2:
The vibrator is given dual functionality: it serves both as a haptic feedback actuator and as a sound output element when magnetically interacted with the electronic permanent magnet. This multi-functionality resolves the contradiction by enabling sound output without adding dedicated sound output hardware that would increase front size.
2Reliability
If a front speaker is integrated into the display device, then sound output capability is improved, but design flexibility is reduced
Solution Approach 1:
By merging the sound output function with the existing vibrator and magnetic components, the patent maintains design flexibility while achieving sound output capability. The front surface remains unobstructed, allowing various design configurations.
Solution Approach 2:
The patent replaces the traditional mechanical speaker system with a magnetic field-based interaction between the electronic permanent magnet and vibrator. This substitution enables sound output without the physical constraints of a front speaker, thereby preserving design flexibility.
3Area of stationary object
If an electronic permanent magnet and vibrator are used for sound output, then front size is reduced, but device complexity increases
Solution Approach 1:
The patent merges multiple functions (haptic feedback and sound output) into a single integrated system using the electronic permanent magnet and vibrator. This combination reduces front size while managing complexity through functional integration rather than adding separate components.
Solution Approach 2:
The electronic permanent magnet can dynamically switch between activation and inactivation states, enabling the system to adapt between haptic feedback mode and sound output mode. This dynamic control allows a single system to perform multiple functions without requiring separate dedicated components for each function.
4Use of energy by moving object
If an electronic permanent magnet is used to switch between sound and haptic modes, then power consumption is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent utilizes changes in the magnetic field state (activation/inactivation) of the electronic permanent magnet to switch between operational modes. This parameter-based control enables power-efficient operation by activating the magnet only when sound output is needed, while the manufacturing complexity is managed through standard electronic component integration.
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 design enables the display device to provide both sound and haptic feedback without increasing the front size, improving design flexibility and enhancing durability by eliminating the need for a front speaker and reducing power consumption.
Implementation Method 1
an electronic permanent magnet attached to the panel bottom member and that switches between an activation state to generate a magnetic force and an inactivation state
Implementation Method 2
a vibrator attached to the middle frame and that vibrates, wherein the electronic permanent magnet and the vibrator overlap each other in a thickness direction of the display device
Implementation Method 3
an electronic permanent magnet attached to the panel bottom member and that switches between an activation state to generate a magnetic force and an inactivation state
Data Source
AI summary
A display device includes a display panel; a panel bottom member disposed on the display panel; a middle frame disposed on the panel bottom member; an electronic permanent magnet attached to the panel bottom member and that switches between an activation state to generate a magnetic force and an inactivation state; and a vibrator attached to the middle frame and that vibrates, wherein the electronic permanent magnet and the vibrator overlap each other in a thickness direction of the display device.