Scan Needle RGB Pixel Arrays for Low-Power Display Scanning
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Solution Overview
Problem
Conventional LED display panels require a complex manufacturing process and high power consumption due to the assembly of numerous LEDs, leading to increased costs.
Innovation Solution
A scan needle comprising a substrate with multiple color light emitting pixel arrays, each emitting different colors, is used to project image portions onto a display screen through a scanning process, reducing the need for extensive LED assembly and minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional LED display panel is formed by assembling a plurality of LEDs on a substrate to display an image in the entire display area, then the display coverage and image quality are improved, but the manufacturing process becomes complicated and the manufacturing cost increases
Solution Approach 1:
The display system is segmented into a scan needle component (containing only red, green, and blue light emitting pixels) and a display screen component. The scan needle scans across the display area to illuminate different portions sequentially, eliminating the need to assemble LEDs across the entire display area and simplifying the manufacturing process while maintaining full display coverage.
Solution Approach 2:
The patent introduces a temporal dimension through the scanning mechanism. Instead of having all pixels illuminated simultaneously across the display area (spatial arrangement), the system uses a single row of RGB pixels that scan across the display area over time, transforming a spatial problem into a temporal-spatial solution that reduces manufacturing complexity.
2Area of stationary object
If a conventional LED display includes a large number of LEDs to display an image across the entire display area, then the display coverage is improved, but the power consumption increases
Solution Approach 1:
The display system segments the illumination function into a compact scan needle containing only red, green, and blue light emitting pixels. This scan needle scans across the display area, illuminating different portions sequentially. This segmentation dramatically reduces the total number of LEDs required while maintaining full display area coverage, thereby reducing power consumption.
Solution Approach 2:
The scan needle performs periodic scanning motion across the display area, illuminating different portions in a sequential manner. This periodic action allows a small number of RGB pixels to cover the entire display area over time, reducing the total power consumption compared to having all pixels illuminated simultaneously.
3Adaptability or versatility
If multiple color light emitting layers are stacked in each pixel (red, green, blue segments) to achieve full color display, then the color display capability is improved, but the device structure becomes more complex
Solution Approach 1:
The patent merges the red, green, and blue light emitting pixels into a single integrated scan needle structure. Instead of having separate RGB pixels distributed across the display area, all three color pixels are combined in one compact scanning component, achieving full color display capability while simplifying the overall device structure and reducing the number of discrete components.
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 simplifies the manufacturing process and reduces power consumption while effectively displaying images by utilizing a scanning mechanism with color light emitting pixel arrays.
Implementation Method 1
A light emitting diode (LED), which is a kind of semiconductor diode, can convert electrical energy into optical energy, and emit different light having different colors depending on a material of a light emitting layer included in the LED.
Data Source
AI summary
A micro-light emitting diode (LED) structure includes a substrate and at least one micro-LED formed above the substrate. The at least one micro-LED includes a metal layer formed above the substrate, a light emitting layer formed above the metal layer, an insulating layer covering the micro-LED and including an opening exposing a portion of the light emitting layer, and a transparent conductive layer above the insulating layer and electrically connected to the light emitting layer via the opening of the insulating layer.