Display Device Vertical Speaker Slit Asymmetry
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Solution Overview
Problem
Existing display devices fail to create a sense of unity between the image or video displayed and the sound output, leading to uncomfortable viewing experiences due to poor sound image localization.
Innovation Solution
A display device design featuring upper and lower speakers with strategically positioned slits in the outer frame, where the vertical width of the lower slit is larger than the upper slit, and metal plates that guide sound output to minimize absorption, allowing sound to be emitted from both sides and creating a unified audio-visual experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sound is output from speakers arranged on the back surface side of the display, then the display structure is simple and speakers are easily integrated, but the sound image localization is poor and lacks sense of unity between image and sound
Solution Approach 1:
The patent transitions from traditional side-mounted or back-mounted speaker arrangements to a vertical dimension arrangement. Speakers are positioned at the upper and lower ends of the display front surface, utilizing the vertical axis to create sound images that align with the visual content displayed on the screen, thereby improving sound image localization without complicating the overall display structure.
Solution Approach 2:
The patent applies different characteristics to different parts of the speaker system. The upper speaker has a downward倾斜 (inclined) sound output unit, while the lower speaker has an upward倾斜 sound output unit. This local differentiation in sound output direction creates realistic sound images that correspond to the spatial position of visual elements on the display, enhancing the sense of unity between image and sound.
2Adaptability or versatility
If speakers are arranged vertically separated on the back surface side, then sound can be output from both upper and lower regions, but the sense of unity between image and sound is not achieved
Solution Approach 1:
The patent utilizes the vertical dimension by positioning speakers at the upper and lower ends of the display front surface rather than arranging them horizontally or on the back surface. This vertical arrangement allows sound to be emitted from regions that correspond to the vertical extent of the displayed image, creating a unified audio-visual experience.
Solution Approach 2:
The patent employs asymmetric sound output directions for the upper and lower speakers. The upper speaker's sound output unit is inclined downward, while the lower speaker's sound output unit is inclined upward. This asymmetric configuration creates realistic sound images that appear to originate from the correct spatial positions relative to the displayed content, enhancing the sense of unity between image and sound.
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
Enhances sound image localization, providing a more immersive viewing experience by making it appear as though the sound is originating from the display itself, thus improving the sense of unity between the image and sound.
Implementation Method 1
an upper speaker including a sound output unit and a metal plate disposed below the upper slit and facing the sound output unit in an output direction of sound from the sound output unit
Data Source
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AI summary
A sound image localization effect is enhanced to ensure a preferable viewing state in which a sense of unity between an image or video and sound is generated. A display device includes: a display on which an image is displayed on a display surface; a rear cover arranged on a back surface side of the display; and an upper speaker and a lower speaker arranged between the display and the rear cover and located so as to be separated vertically from each other, in which an upper slit functioning as a passage hole for sound output from the upper speaker is located above the display, a lower slit functioning as a passage hole for sound output from the lower speaker is located below the display, and a vertical width of the lower slit is larger than a vertical width of the upper slit.