Non-Self-Luminous Display Sound Output via Panel Vibration
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Solution Overview
Problem
There is a demand for outputting sound from the display surface of non-self-luminous display devices, but existing technologies do not establish an effective method for doing so without interrupting light supply to the panel.
Innovation Solution
A display device and speaker device configuration that includes a non-self-luminous display panel unit, a light source unit, and an excitation unit that vibrates a constituent member, such as a diffusion plate, to output sound from the display surface, using an excitation member with a predetermined shape and color fixed to the constituent member by a specific method, ensuring minimal light interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an excitation unit is added to vibrate the display panel for sound output, then sound output capability is improved, but device complexity increases
Solution Approach 1:
The display panel serves dual functions: displaying images and outputting sound. The same display panel structure that displays images is also used as the sound output surface by vibrating it with an excitation unit, eliminating the need for separate speakers and reducing overall device complexity while adding sound output capability
Solution Approach 2:
The excitation unit is integrated with the display panel structure rather than being a separate component. The excitation unit vibrates the display panel itself to produce sound, merging the sound generation function into the existing display structure, thereby adding sound output capability without proportionally increasing device complexity
2Adaptability or versatility
If the excitation unit vibrates the display panel for sound output, then sound output is achieved, but light supply to the panel may be interrupted
Solution Approach 1:
The display panel is divided into multiple independent display cells, and the excitation is applied in a way that does not interfere with the light transmission through each cell. The segmentation allows the light supply function and vibration function to operate independently without mutual interference
Solution Approach 2:
The excitation member acts as an intermediary between the excitation unit and the display panel. It has a predetermined shape and color designed to minimize light interference while effectively transmitting vibration to the display panel, thus mediating between the sound output requirement and the light supply requirement
3Illumination intensity
If the excitation member has a predetermined shape and color, then light interference is minimized, but manufacturing precision requirements increase
Solution Approach 1:
The excitation member is given a predetermined color that matches or complements the display panel's color scheme. This color matching minimizes visual interference and makes the excitation member less noticeable, reducing the impact of manufacturing variations on overall appearance while still achieving the light interference minimization goal
Solution Approach 2:
The excitation member is designed with specific geometric parameters (predetermined shape) that optimize its vibration transmission efficiency while minimizing light interference. By carefully selecting and standardizing these parameters, the design achieves good performance with reasonable manufacturing precision requirements
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
Enables sound output from the display surface of non-self-luminous display devices without disrupting light supply, allowing for localized sound and improved display performance.
Implementation Method 1
an excitation unit that vibrates a constituent member constituting the display panel unit and outputs sound from a display surface of the display cell
Data Source
AI summary
The present technology relates to a display device and a speaker device capable of outputting sound from the display surface of a non-self-luminous display panel.Provided is a display device including: a display panel unit that includes a non-self-luminous display cell; a light source unit that irradiates the display panel unit with light from a back surface; and an excitation unit that vibrates a constituent member constituting the display panel unit and outputs sound from a display surface of the display cell. The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate the constituent member that is fixed to the excitation member by a predetermined fixing method. The present technology can be applied to, for example, a liquid crystal display device.