Micro-LED Pixel Integration With Quantum Dot Color Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current techniques face challenges in manufacturing full-color displays with micro-LEDs due to complexities in manufacturing and precisely integrating these LEDs at a scale necessary for complete full-color pixel arrays.
Innovation Solution
The apparatus incorporates a plurality of micro-LEDs emitting different colors, with one LED bonded to a conductive pad and a conductive via, and includes a light-conversion structure using quantum dots to convert light into a third color, along with a substrate and electrode layer for electrical connection and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If micro-LEDs are integrated into displays to achieve greater pixel density and improved color accuracy, then display quality is improved, but manufacturing complexity and integration difficulty increase significantly
Solution Approach 1:
The display is divided into multiple sub-pixels (red, green, blue) that can be manufactured and integrated separately. Each sub-pixel is a discrete micro-LED element that can be controlled independently, allowing for modular manufacturing approaches that reduce overall complexity while achieving high pixel density
Solution Approach 2:
Different materials and structures are used for different color sub-pixels to optimize their specific optical and electrical properties. Each color channel (red, green, blue) has tailored characteristics that improve overall display quality while managing manufacturing complexity through specialized local solutions
2Manufacturing precision
If micro-LEDs are precisely integrated at scale for complete full-color pixel arrays, then color accuracy is improved, but integration difficulty and manufacturing challenges increase
Solution Approach 1:
Color conversion layers are pre-applied to specific sub-pixels during the manufacturing process. The yellow phosphor material is deposited in advance on blue LED regions that will become green or red sub-pixels, ensuring precise color accuracy is achieved before final assembly and testing
Solution Approach 2:
Yellow phosphor materials serve as intermediaries that convert blue LED light into green or red light. This intermediary conversion mechanism allows a single blue LED structure to produce multiple color outputs, simplifying the manufacturing process while maintaining high color accuracy through the optical conversion property
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 approach enables the fabrication of high-quality displays with improved pixel density and color accuracy by precisely integrating micro-LEDs, allowing for efficient light emission and reduced crosstalk between pixels.
Implementation Method 1
a light-conversion structure that converts light emitted by a second light-emitting device of the plurality of light-emitting devices for emitting light of the first color into light of a third color
Data Source
AI summary
In accordance with one or more aspects of the present disclosure, an apparatus including pixels is provided. The apparatus may include a first micro light-emitting device configured to emit light of a first color, a second micro light-emitting device configured to emit light of a second color, and a third micro light-emitting device for emitting light of a third color. The first micro light-emitting device includes a first light-emitting structure for emitting light of the first color. The second micro light-emitting device includes a second light-emitting structure for emitting light of the first color. The third micro light-emitting device includes a light-emitting structure for emitting light of the third color that is formed on a third light-emitting structure for emitting light of the first color.