Electro-optical Device with Overlapping Sound Generating Body
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Solution Overview
Problem
The challenge is to create a compact electro-optical device with a sound generating body for mobile-type electronic apparatuses, where the integration of display and sound units without increasing enclosure thickness is necessary, and acoustic design for the sound generating body is typically required, limiting enclosure design and size reduction.
Innovation Solution
The solution involves a configuration with a first frame supporting the electro-optical panel, a second frame supporting the sound generating body, and a third frame interposed between them, allowing the sound generating body to be two-dimensionally overlapped with the electro-optical panel, eliminating the need for separate acoustic design and enabling compact integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the electro-optical device and sound generating body are separately mounted on substrates or fixed to separate portions within the enclosure, then the functions are independently supported, but the thickness of the enclosure is inevitably increased
Solution Approach 1:
The patent merges the mounting functions by making the frame structure serve dual purposes: it holds the electro-optical panel and simultaneously supports the sound generating body. The first frame holds the electro-optical panel, while the second frame (opposed to the first) supports the sound generating body, with both frames being integrated into a single structural unit that reduces overall thickness.
Solution Approach 2:
The patent transitions from separate planar mounting to a three-dimensional overlapping arrangement. The sound generating body is arranged to be two-dimensionally overlapped with the electro-optical panel, utilizing the thickness dimension efficiently. The third frame interposed between the first and second frames enables this spatial optimization.
2Length of stationary object
If the display unit and sound generating unit are disposed to avoid overlapping to prevent increase in enclosure thickness, then the enclosure thickness is reduced, but upsizing of the apparatus cannot be achieved
Solution Approach 1:
The patent resolves this contradiction by utilizing the thickness dimension and three-dimensional space. The sound generating body is positioned to overlap two-dimensionally with the electro-optical panel, allowing both components to occupy the same projected area while being separated in the thickness direction through the first, second, and third frames. This enables both large display area and reduced overall thickness.
3Reliability
If acoustic design is performed around the sound generating body for each enclosure, then the sound generating function is optimized, but pursuit of enclosure design is limited and reduction in size or thickness cannot be achieved satisfactorily
Solution Approach 1:
The patent segments the sound generating body and its acoustic environment from the main enclosure structure. The sound generating body is mounted on the second frame and covered by the second frame and third frame, creating a self-contained acoustic module. This segmentation allows the sound generating function to be optimized independently while the enclosure design remains flexible and adaptable.
Solution Approach 2:
The frame structure serves multiple functions simultaneously: it provides mechanical support for both the electro-optical panel and sound generating body, defines the acoustic environment for the sound generating body, and enables compact integration. This multi-functionality reduces the need for separate acoustic design interventions in the enclosure.
Data Source
AI summary
An electro-optical device with a sound generating body is disclosed, in which an electro-optical device and a sound generating body can be mounted compactly and which can eliminate necessity of acoustic design of the sound generating body for an enclosure of an electronic apparatus for accommodating the electro-optical device. The electro-optical device of the present invention includes a first frame, a second frame opposed to the first frame, a third frame interposed between the first frame and the second frame, an electro-optical panel supported by the first frame, and a sound generating body supported by the second frame and covered by the second frame and the third frame, the sound generating body being arranged so as to be two-dimensionally overlapped the electro-optical panel.