LED Module Boundary Wiring for Independent Region Control
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Solution Overview
Problem
Existing display technologies face challenges in efficiently controlling image output for each region of a light-emitting diode module, leading to suboptimal image quality and resolution.
Innovation Solution
A light-emitting diode module with a signal wiring layer that includes a boundary region dividing it into unit regions, featuring a bridge-type wiring structure that is electrically opened, and a test pad in the non-active area, along with a film on glass electrode and insulating layers, allowing for independent control of each unit region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional LED module structure without boundary regions is used, then the device complexity is low, but the image quality and resolution are insufficient
Solution Approach 1:
The LED module is divided into multiple unit regions by boundary regions that electrically open the signal wiring layer. Each unit region can be independently controlled, enabling high-resolution displays and improved image quality through regional control while managing complexity through modular segmentation
2Manufacturing precision
If multiple driver ICs are used to control different regions, then the image quality improves, but the device complexity and bezel width increase
Solution Approach 1:
The driver ICs are extracted from the front bezel area and relocated to the rear side of the LED module, mounted on the rear surface of the substrate. This extraction allows for reduced bezel width while maintaining the capability for regional control and high-quality image output
3Adaptability or versatility
If the signal wiring layer is continuously connected without electrical openings, then the device complexity is low, but the ability to control each unit region independently is lost
Solution Approach 1:
The signal wiring layer is segmented into electrically isolated unit regions through boundary regions with electrical openings. This segmentation enables independent control of each unit region while the bridge-type wiring structure within units maintains electrical connectivity where needed, achieving regional adaptability without excessive complexity
Solution Approach 2:
The wiring structure exhibits different electrical properties in different locations: bridge-type connections provide electrical continuity within unit regions for signal distribution, while boundary regions provide electrical openings for isolation. This local differentiation enables regional control capability while managing overall system complexity
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
Enables high-quality image output and high-resolution displays by efficiently controlling each unit region of the LED module, reducing the need for multiple driver ICs and minimizing bezel width.
Implementation Method 1
The LED is a device for converting an electrical signal into the form of light such as infrared rays and visible light, by using the characteristics of compound semiconductors
Data Source
AI summary
A light-emitting diode (LED) module includes: a glass substrate; a signal wiring layer provided on the glass substrate and including a plurality of electrodes connected by a passive matrix circuit; and a plurality of LEDs connected to the plurality of electrodes and configured to emit light toward the glass substrate, wherein the signal wiring layer further includes a boundary region that divides the LED module into a plurality of unit regions.