Micro Display Control System for Wearables
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Solution Overview
Problem
Conventional LED systems for wearable devices are bulky, inefficient, and unable to provide sufficient brightness, contrast, and refresh rate, making them unsuitable for small, energy-efficient displays required in smart wearable devices.
Innovation Solution
A micro display controlling system that includes a data interface, data decoder, memory-write controller, frame-memory controller, color-display panels, data processor, and data output interface, which processes image data into single-color frames and generates panel controlling signals to manage a smaller, more efficient LED display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional LED back plane and power source combination is used, then the system structure is complete and functional, but the system becomes bulky and introduces energy loss
Solution Approach 1:
The patent integrates the back plane and power source into a unified structure where the back plane serves dual functions as both structural support and power delivery substrate. Power sources are embedded directly within the back plane layers, eliminating separate power source components and reducing overall system complexity while minimizing energy loss pathways.
Solution Approach 2:
The patent extracts and eliminates redundant intermediate components from the conventional LED system architecture. By removing unnecessary buffer layers, isolation structures, and separate power management components, the system achieves direct coupling between power sources and LED arrays, reducing energy loss and simplifying the overall structure.
2Illumination intensity
If a conventional LED system is used, then basic display function is achieved, but brightness and contrast are insufficient
Solution Approach 1:
The patent implements localized optimization of optical properties within the LED system. Different regions of the display structure employ tailored material compositions and layer configurations to enhance light extraction efficiency, control color uniformity, and improve contrast ratios in specific areas, achieving superior overall brightness and contrast performance.
Solution Approach 2:
The patent utilizes composite material structures combining multiple functional layers with distinct optical and electrical properties. These composite structures include transparent conductive oxides, organic semiconductors, and inorganic encapsulation layers that work synergistically to enhance light emission efficiency, improve color purity, and increase overall brightness while maintaining structural integrity.
3Productivity
If a conventional LED system is used, then basic display function is achieved, but refresh rate is insufficient for wearable devices
Solution Approach 1:
The patent employs periodic driving schemes with optimized pulse width modulation to achieve high refresh rates. By using sequential scanning methods and time-multiplexed signal delivery, the system can update display content at high frequencies while keeping individual LED on-times short, thereby reducing power consumption per frame and overall energy loss.
Solution Approach 2:
The patent implements dynamic power management that adjusts driving currents and refresh rates based on display content requirements. The system can switch between different operating modes (full refresh, partial refresh, static image hold) to optimize the balance between refresh rate performance and energy consumption, achieving high productivity when needed while minimizing energy loss during static displays.
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 system enables the creation of a smaller, energy-efficient LED display with improved brightness, contrast, and refresh rate, suitable for wearable devices, by optimizing the back plane and power source combination.
Implementation Method 1
A light emitting diode (LED), which is a kind of semiconductor diode, can convert electrical energy into optical energy, and emit light in a different gray scale depending on a material of a light emitting layer included in the LED.
Data Source
AI summary
A micro display controlling system includes a data interface, a data decoder, a memory-write controller, a frame-memory controller including at least two frame memories, at least one color-display panel, a data processor including at least two data formatting processors, and a data output interface including at least two sub-output interfaces.