Micro LED Pixel Series Structure for Unified Voltage Driving
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Solution Overview
Problem
Micro LED display devices face high power consumption due to the need for different forward bias voltages to drive micro LEDs of various light colors, which complicates the driving substrate's ability to efficiently manage energy.
Innovation Solution
The implementation of a micro LED display device with series-connection structures comprising at least two micro light-emitting elements of the same color, where a circuit substrate provides a unified driving voltage to series-connected micro LEDs, reducing power consumption by optimizing the connection and arrangement of micro LEDs on the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different forward bias voltages are provided to micro LEDs of different light colors, then each micro LED can be driven to emit its specific color light, but the power consumption of the display device increases
Solution Approach 1:
The patent combines multiple micro LEDs of different colors (red, green, blue) into a single series connection structure. By merging these different-color micro LEDs into one series circuit, the driving substrate can apply a unified driving voltage to the entire structure, thereby reducing power consumption while maintaining the ability to emit multiple colors through selective activation of different series connection structures.
Solution Approach 2:
The driving substrate is designed to provide a universal driving voltage that can drive series connection structures containing multiple different-color micro LEDs. This multi-functional approach allows the same voltage source to control various color emissions, eliminating the need for separate voltage sources for each color and thus reducing overall power consumption.
2Adaptability or versatility
If multiple different forward bias voltages are provided through the driving substrate, then micro LEDs of various colors can be driven, but the device complexity increases
Solution Approach 1:
The patent merges multiple different-color micro LEDs into series connection structures, which simplifies the driving substrate by reducing the number of separate voltage sources needed. Instead of managing multiple independent voltage outputs for red, green, and blue LEDs, the substrate only needs to provide a unified driving voltage to the series structures, thereby reducing device complexity.
Solution Approach 2:
The patent segments the display into multiple series connection structures, where each structure contains micro LEDs of different colors connected in series. This segmentation allows the driving substrate to control different color groups independently through the same voltage source, simplifying the overall driving architecture while maintaining multi-color capability.
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 lowers power consumption by allowing the same driving voltage to efficiently drive micro LEDs of different colors, improving energy management and display efficiency while maintaining effective color representation.
Implementation Method 1
Each series-connection structure comprises at least two micro light-emitting elements, which have light wavelengths within a wavelength range of one color light
Implementation Method 2
the circuit substrate provides a driving voltage to drive the series-connection structures of one of the display pixels
Data Source
AI summary
A micro light-emitting diode display device and a micro light-emitting diode structure. The micro light-emitting diode display device includes a circuit substrate and a plurality of display pixels, the display pixels are arranged on the circuit substrate and are electrically connected with the circuit substrate individually. Each display pixel includes a plurality of series-connection structures, and the light wavelengths of the series-connection structures are different. Each series-connection structure includes at least two micro light-emitting elements, and the light wavelengths of the at least two micro light-emitting elements are within a wavelength range of one color light. The circuit substrate provides a driving voltage to drive the series-connection structures of each display pixel.