Transparent LED Chip Layout for Multi-Angle Light Emission
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Solution Overview
Problem
Conventional LED illumination devices emit directional light, limiting their application and have low luminous efficiency, making them unsuitable for indoor and outdoor illumination needs, and they lack the ability to provide multi-directional lighting effects.
Innovation Solution
The invention employs a transparent substrate with LED chips disposed on both surfaces, allowing light to be emitted in multiple directions, enhanced by wavelength conversion layers and adjustable angles, which improve luminous efficiency and light shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional LED is used as a directional light source, then the structure is simple, but the lighting application is limited and luminous efficiency is low
Solution Approach 1:
The LED chip is divided into multiple light emitting surfaces (first main surface and second main surface) that can emit light in different directions. The supporting base is segmented with multiple supporting parts at different angles to hold the LED chips oriented in various directions, enabling multi-directional lighting capability while maintaining a relatively simple overall structure
Solution Approach 2:
The invention transitions from single-directional light emission to multi-directional light emission by utilizing three-dimensional spatial arrangement. LED chips are mounted on supporting parts at different angles (including perpendicular and inclined orientations) to emit light in multiple dimensions, expanding the lighting application versatility
2Loss of energy
If conventional LED emits light from a single side, then the device structure is simple, but the luminous efficiency is relatively low
Solution Approach 1:
The LED chip is segmented into multiple light emitting surfaces (first main surface and second main surface) that can emit light in different directions. The supporting base is segmented with multiple supporting parts at different angles to hold the LED chips oriented in various directions, enabling multi-directional lighting capability while maintaining a relatively simple overall structure
Solution Approach 2:
Multiple light emitting surfaces of the LED chip are merged into a single integrated device that emits light in multiple directions simultaneously. The supporting parts and LED chips are combined to form an integrated illumination device that utilizes both main surfaces of the LED chip for light emission, thereby improving luminous efficiency
3Adaptability or versatility
If LED chips are disposed on both surfaces of transparent substrate, then multi-directional lighting is achieved, but the device complexity increases
Solution Approach 1:
The transparent substrate serves multiple functions: it supports LED chips on both its first and second surfaces, allows light transmission, and provides structural integrity. The supporting parts are designed to be universal in holding LED chips at various orientations. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity
Solution Approach 2:
The invention transitions from single-directional light emission to multi-directional light emission by utilizing three-dimensional spatial arrangement. LED chips are mounted on supporting parts at different angles (including perpendicular and inclined orientations) to emit light in multiple dimensions, expanding the lighting application versatility
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
The solution enables multi-directional lighting with enhanced luminous efficiency and improved light shape, addressing the limitations of conventional LEDs by providing a more versatile and efficient lighting solution.
Implementation Method 1
First and second wavelength conversion layers are disposed on the first main surface and the second main surface, respectively
Data Source
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AI summary
A light emitting element (1; 310) includes a transparent substrate (2) and a plurality of light emitting diode (LED) chips (3; 14). The transparent substrate (2) has a support surface (210) and a second main surface (21B) disposed opposite to each other. At least some of the LED chips (3; 14) are disposed on the support surface (210) and light emitting surfaces (34) of the LED chips (3; 14) and at least a part of the support surface (210) form a first main surface (21A) where light is emitted from. Each of the LED chips (3; 14) includes a first electrode (16; 31A) and a second electrode (18; 31B). Light emitted from at least one of the LED chips (3; 14) passes through the transparent substrate (2) and emerges from the second main surface (21B). An illumination device (10; 10'; 11; 50; 301; 302; 303; 304) includes at least one light emitting element (1; 310) and a supporting base (5; 26; 324). The light emitting element (1; 310) is disposed on the supporting base (5; 26; 324), and an angle is formed between the light emitting element (1; 310) and the supporting base (5; 26; 324).