Display Panel Electrode Layout for Self-Assembly Wiring Simplification
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Solution Overview
Problem
Existing display technologies using semiconductor light emitting devices face challenges in implementing large-screen high-pixel displays due to difficulties in coupling devices to substrates, and there is a need for an efficient wiring process in self-assembly methods.
Innovation Solution
A display device with a substrate, power and ground wirings, driving TFTs, assembly electrodes, and insulating layers that generate an electric field, allowing semiconductor light emitting devices to be assembled efficiently without separate power wiring, thereby simplifying the panel's wiring structure and reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate power wiring is implemented for assembly electrodes in self-assembly method, then assembly function is achieved, but wiring structure becomes complicated
Solution Approach 1:
The patent combines the power wiring and ground wiring functions with the assembly electrode wiring by making them share common wiring structures. The assembly electrodes are electrically connected to the power wiring and ground wiring through shared conductive paths, eliminating the need for separate dedicated wiring and reducing overall wiring complexity while maintaining assembly functionality.
Solution Approach 2:
The power wiring and ground wiring serve dual purposes: they provide electrical power to the light emitting devices and simultaneously serve as the wiring structure for generating electric fields during the self-assembly process. This multi-functional design eliminates redundant wiring and simplifies the overall panel structure.
2Ease of operation
If separate power wiring is implemented for assembly electrodes, then assembly function is achieved, but noise increases
Solution Approach 1:
By merging the assembly electrode wiring with the power wiring and ground wiring, the patent reduces the total length and number of conductive paths. This minimization of wiring reduces electromagnetic interference and noise generation, while the shared wiring structure maintains effective electric field generation for assembly operations.
3Ease of operation
If complex wiring structure is used for assembly electrodes, then assembly function is achieved, but space utilization decreases
Solution Approach 1:
The patent merges assembly electrode wiring with existing power and ground wiring networks, eliminating redundant conductive structures. This integration significantly reduces the wiring area occupation and improves space utilization within the display panel, while maintaining all necessary electrical connections for both power supply and assembly functions.
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 enables efficient assembly of semiconductor light emitting devices, reducing complexity in panel wiring, minimizing noise, and optimizing space utilization, while allowing for flexible and high-pixel displays.
Implementation Method 1
the pair of assembly electrodes can be formed on the substrate, the first assembly electrode can be formed to extend from the power wiring, and the second assembly electrode can be formed to extend from the ground wiring. And the pair of assembly electrodes may generate an electric field as a voltage is applied to any one of the assembly electrodes.
Data Source
AI summary
Discussed is a display device including: a substrate; a power wiring and a ground wiring disposed on the substrate and spaced apart from each other; a driving thin film transistor (TFT) disposed on the substrate and having a source terminal electrically connected to the ground wiring; at least one insulating layer disposed on the substrate; and a pair of assembly electrodes spaced apart from each other between the at least one insulating layer and the substrate, wherein the pair of assembly electrodes is configured to generate an electric field as a voltage is applied to any one of the pair of assembly electrodes.