Micro LED Display Module Grounding Structure for ESD Protection
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Solution Overview
Problem
Traditional liquid crystal panels have slow response times, high power consumption, and require a backlight, while OLED panels are prone to burn-in and have a short lifespan, limiting their compactness and durability.
Innovation Solution
A micro LED panel using inorganic light-emitting devices mounted on substrates, which are self-emissive, providing better brightness, resolution, and durability, and are resistant to burn-in, with a manufacturing method that includes a substrate, front cover, metal plate, side cover, and side end member for protection against static electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional liquid crystal panels are used, then they can display images, but they have slow response time and high power consumption requiring a backlight
Solution Approach 1:
The patent transitions from liquid crystal technology to micro LED technology, fundamentally changing the light emission mechanism from passive liquid crystal modulation to active inorganic LED emission. This parameter change enables self-emissive display without backlight, achieving faster response times and lower power consumption while maintaining display functionality
2Duration of action of stationary object
If OLED panels are used, then they can achieve small thickness and self-emission, but they are vulnerable to burn-in and have short lifespan
Solution Approach 1:
The patent employs inorganic LED materials with superior chemical stability and resistance to degradation compared to organic OLED materials. The inorganic semiconductor structure provides inherent protection against burn-in phenomena and extends operational lifespan while maintaining self-emissive capabilities and thin profile
3Illumination intensity
If micro LED panels are used, then they provide better brightness and resolution, but they require protection against static electricity
Solution Approach 1:
The patent introduces a conductive adhesive layer as an intermediary between the micro LED chips and the substrate. This conductive adhesive serves dual functions: providing mechanical bonding and establishing electrostatic discharge (ESD) protection pathways that divert static electricity away from the sensitive LED chips, thereby protecting them while maintaining their high brightness performance
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 micro LED panel offers improved contrast, response time, and energy efficiency, allowing for various resolutions and screen sizes, and includes protective features to prevent static electricity damage.
Implementation Method 1
a plurality of inorganic light-emitting devices (50) mounted on a mounting surface (41) of the substrate (40)
Implementation Method 2
a side end member (100) covering at least one portion of a side end (91) of the side cover (90), and including a first portion (110) in contact with and grounded to the metal plate (60)
Data Source
AI summary
A display module includes: a substrate including a mounting surface on which a plurality of inorganic light-emitting devices are mounted, a side surface, and a rear surface being opposite to the mounting surface; a front cover bonded with the mounting surface and covering the mounting surface; a metal plate bonded with the rear surface; a side cover surrounding the side surface; and a side end member covering at least one portion of a side end of the side cover, and including a first portion being in contact with and grounded to the metal plate and a second portion connected to the first portion and positioned on the side end of the side cover.