Multi-Section Light Emitter Layout With Dual Switching Units
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Solution Overview
Problem
In light emitting devices with multiple light emitting sections, the distance from a single switching unit to each section can be lengthy, leading to potential complications in wiring and device size, as well as unintentional simultaneous lighting of sections connected to different switching units.
Innovation Solution
The device incorporates a first and second switching unit on opposite sides of the substrate, connected by wiring, allowing sequential switching of light emitting sections and reducing electrical resistance, with optical systems guiding light to overlap regions irradiated by different sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single switching unit is provided to control multiple light emitting sections, then the device structure is simplified, but the distance from the switching unit to each light emitting section becomes long
Solution Approach 1:
The switching unit is divided into multiple independent switching units (first switching unit, second switching unit, etc.) positioned at different locations on the substrate. Each switching unit controls specific light emitting sections, thereby reducing the distance between switching units and light emitting sections while maintaining simplified device structure.
2Length of stationary object
If switching units are positioned closer to light emitting sections, then distance is shortened, but device size increases
Solution Approach 1:
Multiple switching units are arranged in a two-dimensional layout on the substrate rather than concentrating them in one location. This spatial distribution allows switching units to be positioned closer to light emitting sections in terms of functional distance while maintaining compact overall device footprint through efficient use of substrate area.
Data Source
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AI summary
A light emitting device includes a substrate, a light emitting unit that is provided on the substrate and has plural light emitting sections, a first switching unit that is provided on the substrate and switches a first light emitting section of the light emitting unit between a light emitting state and a non-light emitting state, and a second switching unit that is provided on the substrate on an opposite side of the first switching unit with the light emitting unit interposed between the first switching unit and the second switching unit, switches a second light emitting section different from the first light emitting section of the light emitting unit, between the light emitting state and the non-light emitting state.