Display Panel Hole Patterns for Rear-Mounted Sound Transmission
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Solution Overview
Problem
Display devices with sound systems face challenges in providing a sense of presence for sound when sound devices are positioned behind the display panel, as the sound is often blocked by the panel.
Innovation Solution
Incorporating specific hole patterns in the display panel and panel bottom members that allow sound to pass through, ensuring that sound from rear-positioned sound devices can be output effectively to the front, including overlapping holes and varying hole sizes and shapes to optimize sound transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a sound device is disposed on a rear surface of a display panel, then the display device structure is simplified and compact, but the sound from the sound device is blocked by the display panel and cannot provide sound with a full sense of presence
Solution Approach 1:
The display panel is segmented by defining multiple holes (first holes, second holes, third holes) at different positions and layers. These holes divide the panel structure to create sound transmission paths, allowing sound to pass through while maintaining the panel's display function. The segmentation approach resolves the contradiction by creating localized openings that enable sound transmission without compromising overall structural integrity.
Solution Approach 2:
Multiple layers of holes are nested through different components: first holes through the display panel, second holes through the first panel bottom member, and third holes through the second panel bottom member. These nested hole structures create aligned sound transmission channels that allow sound to pass through multiple layers effectively, solving the sound blocking issue while maintaining a compact rear-mounted sound device configuration.
2Object-generated harmful factors
If holes are defined in the display panel and panel bottom members to allow sound transmission, then sound with a sense of presence can be provided, but the structural integrity and manufacturing precision requirements increase
Solution Approach 1:
Different holes are designed with specific local qualities: first holes with maximum length 'a' and minimum distance 'c' in the first direction, and maximum length 'b' and minimum distance 'd' in the second direction. Second and third holes have corresponding dimensional specifications. These localized quality specifications allow precise control of sound transmission characteristics while maintaining manufacturability through standardized hole patterns.
Solution Approach 2:
The hole dimensions are defined using mathematical relationships: maximum length of second hole satisfies 'e×(a+c)' where e is a positive integer, and maximum length of third hole satisfies 'g×(a+c)' where g is a positive integer greater than e. Similar relationships apply to the second direction with parameter f. These parameter changes provide a systematic approach to scaling hole dimensions while maintaining proper alignment and sound transmission properties across different device sizes.
3Object-generated harmful factors
If multiple layers of holes (first, second, third holes) are defined to optimize sound transmission, then sound transmission effectiveness is improved, but the device complexity and number of components increase
Solution Approach 1:
The holes serve multiple functions simultaneously: they allow sound transmission from rear-mounted devices, maintain structural alignment between different panel layers, and provide a standardized pattern that can be manufactured using conventional processes. The same hole pattern design principles apply across first, second, and third holes, creating a universal solution that reduces overall device complexity despite the multi-layer structure.
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 the provision of sound with a sense of presence even when sound devices are placed at the rear of the display device, by ensuring that sound is not blocked and can be transmitted effectively through the designed hole patterns.
Implementation Method 1
a display panel in which first holes arranged in a first direction and a second direction that intersects the first direction are defined... that may pass sound therethrough
Data Source
AI summary
A display device includes a display panel in which first holes arranged in a first direction and a second direction that intersects the first direction are defined, and a first panel bottom member which is disposed on one surface of the display panel and in which second holes arranged in the first and second directions are defined. A maximum length of a second hole among the second holes in the first direction satisfies “e×(a+c)” where a denotes a maximum length of a first hole among the first holes in the first direction, c denotes a minimum distance between neighboring first holes among the first holes in the first direction, and e is a positive integer.