Display Panel Vibration Structure for Flat-Panel Sound Output

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing output apparatuses struggle to produce high-quality image and sound output simultaneously.

Innovation Solution

An output apparatus comprising display panels, a support member, and an actuator section that vibrates the display panels to enhance image and sound quality, utilizing actuators such as electromagnetic, piezoelectric, or magnetostrictive actuators, with a fixing mechanism and connection mechanism to secure the actuators to the support member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an actuator is attached to a frame member or front panel connected to a display panel, then image and sound can be output, but the structure becomes complex and the quality of image and sound output is limited

Engineering Contradiction:
Improveimage and sound output capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the display panel and actuator into a single integrated structure where the actuator is disposed between the display panel and the support portion. This integration allows the display panel to serve dual functions: visual display and sound output, thereby reducing overall structural complexity while maintaining adaptability for both image and sound output.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display panel is designed with multi-functionality, serving both as a visual display device and as a sound output device. The actuator enables the display panel to vibrate and produce sound waves, making it a universal component that performs both imaging and acoustic functions without requiring separate dedicated components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If the actuator section is disposed between the display panels and support portion, then high-quality image and sound output is achieved, but the manufacturing process becomes more difficult

Engineering Contradiction:
Improveimage and sound qualityVSAvoidassembly difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent segments the output apparatus into distinct functional modules: the display panel, the actuator section, and the support portion. This segmentation allows each component to be manufactured and tested independently before final assembly, simplifying the manufacturing process while enabling high-quality output through precise control of each module's performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support portion serves as an intermediary structure that provides a stable mounting base for the actuator section and display panel. This intermediary element facilitates precise positioning and alignment during assembly, making it easier to achieve high-quality image and sound output while simplifying the manufacturing process through standardized mounting interfaces.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-generated harmful factors

If the display panel is vibrated by the actuator section, then sound output is achieved, but the display panel structure must be stronger

Engineering Contradiction:
Improvesound output capabilityVSAvoiddisplay panel structural strength
Core Design Contradiction:
Object-generated harmful factorsVSStrength

Solution Approach 1:

The patent applies local quality by positioning the actuator at specific locations on the display panel where vibration transmission is most effective. The actuator is disposed between the display panel and support portion, creating localized vibration zones that propagate sound waves while the overall display panel structure maintains its display functionality and structural integrity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent utilizes mechanical vibration as the core mechanism for sound output. The actuator generates mechanical vibrations that are transmitted to the display panel, causing it to vibrate and produce sound waves. This vibration-based approach enables high-quality sound output while the display panel's structural strength is optimized to handle these vibrations without compromising its display performance.

Inventive Principle:
Principle #18Mechanical vibration

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 apparatus achieves high-quality image and sound output by vibrating the display panels, allowing for a flat speaker configuration that radiates a wavefront close to a plane wave, providing sharp directivity and efficient sound distribution.

Implementation Method 1

the actuator section is disposed between the one or more display panels and the support portion and vibrates the respective one or more display panels

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

Each of the one or more actuators may be an electromagnetic actuator that includes a magnetic circuit

Methodology Applied
Scientific EffectElectromagnetic actuation: Electromagnetic Induction

Implementation Method 3

The one or more actuators may each be an electromagnetic actuator, a piezoelectric actuator, or a magnetostrictive actuator

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 4

The one or more actuators may each be an electromagnetic actuator, a piezoelectric actuator, or a magnetostrictive actuator

Methodology Applied
Scientific EffectMagnetostriction: Magnetostriction

Data Source

PatentUS12474877B2Output apparatus
Publication Date: 2025.11.18 SONY GROUP CORP
  • US12474877B2 patent drawing
  • US12474877B2 patent drawing
  • US12474877B2 patent drawing

AI summary

There is provided an output apparatus that includes one or more display panels, a support member, and an actuator section. The one or more display panels are capable of displaying an image. The support member includes a support portion for supporting the respective one or more display panels. The actuator section is disposed between the one or more display panels and the support portion and vibrates the respective one or more display panels. In this output apparatus, an image is output by the one or more display panels. Further, the actuator section is disposed between the display panels and the support portion of the support member, and the display panels are vibrated.