Light Emitter Electrode Layout for Dense 3D Measurement Arrays
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Solution Overview
Problem
Existing light emitting devices face challenges in arranging light emitting elements at high densities due to limitations in reducing the distances between them, as wiring regions restrict their placement.
Innovation Solution
The light emitting device is configured with light emitting elements arranged on a substrate, where first and second electrodes controlling light emission are positioned differently relative to the center of each element, and wiring is provided through spaces above the elements, allowing for a higher density arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If wiring regions are provided between light emitting elements, then light emitting elements can be controlled, but the distance between light emitting elements cannot be reduced
Solution Approach 1:
The patent moves the wiring from the planar dimension (between elements) to the vertical dimension (above elements). The first and second lines are provided above the light emitting elements in the height direction, allowing wiring to occur in three-dimensional space rather than being constrained to two-dimensional placement between elements.
Solution Approach 2:
The patent introduces electrodes as intermediary connection points. The first electrode connects to the first line and the second electrode connects to the second line, both positioned above the light emitting elements. These electrodes serve as mediators that enable control wiring without requiring direct planar routing between elements.
2Productivity
If light emitting elements are arranged at high density, then fractionated irradiation efficiency improves, but wiring becomes more complex
Solution Approach 1:
By relocating lines and electrodes to the vertical dimension above the light emitting elements, the patent reduces planar wiring complexity while maintaining control functionality. This three-dimensional wiring approach allows higher element density without proportionally increasing wiring complexity.
Solution Approach 2:
The patent merges the first line and second line into a shared space above the light emitting elements. Multiple lines can be routed together in the vertical dimension, reducing the overall wiring complexity compared to having separate planar routing for each line.
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
This configuration enables a higher density of light emitting elements, facilitating more efficient fractionated irradiation and improved performance in three-dimensional shape measurement applications.
Implementation Method 1
light emitting elements arranged on a front surface of a substrate emit light
Data Source
AI summary
A light emitting device includes light emitting elements that are arranged on a front surface of a substrate and emit light, a first electrode that is connected to a first line controlling light emission of a light emitting element included in a first light emitting element group, and a second electrode that is connected to a second line controlling light emission of a light emitting element included in a second light emitting element group, in which the first line is provided through a space above the light emitting element of the second light emitting element group, and a position at which the first electrode is disposed with respect to a center of the light emitting element and a position at which the second electrode is disposed with respect to a center of the light emitting element are different from each other.