Light Emitting Device With Segmented RGB Units
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Solution Overview
Problem
Full-color LED units face challenges in emitting light with desired colors due to difficulties in adjusting light emission intensities, resulting in suboptimal color rendering performance.
Innovation Solution
A light emitting device comprising a base with high light transmissivity, first and second light emitting elements with electrodes on one surface connected to a conductor layer, and a resin layer holding these elements, allowing for efficient color mixing by laminating units emitting red, green, and blue lights with overlapping and offset terminals for adjustable luminosity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If full-color LED units use RGB chips in a package, then they can emit various colors through color mixing, but it becomes difficult to adjust light emission intensities and achieve excellent color rendering performance
Solution Approach 1:
The patent divides the light emitting device into multiple independent light emitting units, each containing a specific color chip (R, G, or B). These units are arranged in an array where identical color units are positioned at regular intervals. This segmentation allows independent control of each color channel, making it easier to adjust light emission intensities for desired color output and improve color rendering performance.
2Productivity
If multiple light emitting elements are laminated with overlapping terminals, then color mixing efficiency is improved, but device structure becomes more complex
Solution Approach 1:
The patent creates multiple copies of the same light emitting unit structure, where each unit contains a light emitting element with electrode connections. These identical units are arranged in an array with overlapping terminals at regular intervals. By using repeated identical structures rather than complex unique designs, the patent achieves efficient color mixing while maintaining manufacturing simplicity and structural regularity.
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 emission of various colors, including white and intermediate colors, with enhanced color rendering performance and adjustable luminosity for desired color output.
Implementation Method 1
a first light emitting element which has an electrode formed on only one surface, the electrode being connected to a conductor layer formed on the base; a second light emitting element which has an electrode formed on only one surface, the electrode being connected to the conductor layer formed on the base, and which emits light with a different color from a color of light emitted from the first light emitting element
Implementation Method 2
a resin layer that holds the first and second light emitting elements against the base
Data Source
AI summary
A light emitting device includes a base with a light transmissivity, a first light emitting element which has an electrode formed on only one surface, the electrode being connected to a conductor layer formed on the base, a second light emitting element which has an electrode formed on only one surface, the electrode being connected to the conductor layer formed on the base, and which emits light with a different color from a color of light emitted from the first light emitting element, and a resin layer that holds the first and second light emitting elements against the base.