Light Emitting Module Optical Links for Narrow-Rim Signal Transfer
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Solution Overview
Problem
Existing light emitting modules face challenges in efficiently transmitting data signals, power, reference, and ground connections between the front and back surfaces, especially with the increasing number of electrical connections required for high-resolution displays like micro-LEDs, which occupy valuable space and require galvanic side contacting techniques.
Innovation Solution
The implementation of optical transmitters and receivers, where optical transmitters on one surface transmit signals to associated optical receivers on another surface through an optical medium, eliminating the need for galvanic connections and allowing flexible placement, with options for apertures and lenses to minimize stray light and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If galvanic side contacting technique is used to relay contacts from front to rear, then data signals can be transmitted between surfaces, but the rim space between adjacent modules increases and manufacturing complexity increases
Solution Approach 1:
The patent replaces the mechanical galvanic contact system with an optical transmission system. Optical transmitters convert electrical signals to optical signals that pass through the module rim, and optical receivers convert them back to electrical signals. This substitution eliminates the need for physical galvanic contacts in the rim area, reducing the required rim space while maintaining reliable signal transmission.
Solution Approach 2:
The patent introduces optical transmitters and optical receivers as intermediary devices. The transmitter converts electrical signals to optical signals that can traverse the module structure, and the receiver converts them back. This intermediary optical conversion process enables signal transmission without requiring direct galvanic contacts through the rim, thereby reducing space requirements.
2Reliability
If thousands of contacts are routed through the rim, then data signals can be transmitted, but the number of contacts doubles and device complexity increases
Solution Approach 1:
The patent replaces the mechanical galvanic contact system with an optical transmission system. Optical transmitters convert electrical signals to optical signals that pass through the module rim, and optical receivers convert them back to electrical signals. This substitution eliminates the need for physical galvanic contacts in the rim area, reducing the required rim space while maintaining reliable signal transmission.
Solution Approach 2:
The patent introduces optical transmitters and optical receivers as intermediary devices. The transmitter converts electrical signals to optical signals that can traverse the module structure, and the receiver converts them back. This intermediary optical conversion process enables signal transmission without requiring direct galvanic contacts through the rim, thereby reducing space requirements.
3Area of stationary object
If optical transmitters and receivers are used, then galvanic connections are eliminated and space efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The patent replaces the mechanical galvanic contact system with an optical transmission system. Optical transmitters convert electrical signals to optical signals that pass through the module rim, and optical receivers convert them back to electrical signals. This substitution eliminates the need for physical galvanic contacts in the rim area, reducing the required rim space while maintaining reliable signal transmission.
Solution Approach 2:
The patent employs optical transmitters and receivers that can serve multiple functions: transmitting data signals, reducing interference, and enabling flexible module design. These components are integrated into the existing module architecture, allowing them to perform signal transmission while occupying minimal space, thus achieving multi-functionality that offsets the added manufacturing 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
This optical data transmission method reduces the need for galvanic connections, increases space efficiency, and improves signal integrity by minimizing stray light and interference, enabling effective data transfer for high-resolution displays.
Implementation Method 1
Each optical receiver is connected to at least one light emitting element and is configured to transform said optical signal into an electrical signal
Data Source
AI summary
A light emitting module including a first surface having a plurality of light emitting elements, a second surface configured to receive driving signals and to transfer these signals to the light emitting elements of the first surface. The second surface includes a plurality of optical transmitters, in which the optical transmitters are each associated to an associated optical receiver arranged on the first surface, the optical transmitter and the associated opposing optical receiver being separated by an optical medium, such that an optical signal including driving signals transmitted by the optical transmitter is received by the opposing optical receiver, each optical receiver being connected to at least one light emitting element and is configured to transform the optical signal into an electrical signal configured to drive the at least one light emitting element to generate an image on the display.