Sub-Pixel Electrode Layout for Uniform Display Brightness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices experience non-uniform brightness due to high resistance in power lines connected to sub-pixels, leading to varying light intensities and reduced brightness quality.
Innovation Solution
Incorporation of an auxiliary electrode between the substrate and the circuit layer structure, which transmits a constant voltage to multiple sub-pixels through a connection electrode, ensuring uniform brightness by reducing resistance and variability in light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power lines are used to connect sub-pixels, then electrical connection is achieved, but resistance increases causing non-uniform brightness
Solution Approach 1:
The power supply system is segmented into multiple independent electrodes (first electrode and second electrode) that are electrically insulated from each other. Each electrode independently supplies power to sub-pixels, eliminating the need for long power lines that cause resistance and brightness non-uniformity.
Solution Approach 2:
A third electrode is introduced as an intermediary to electrically connect the first electrode and the second electrode. This third electrode serves as a mediator that enables voltage transmission between the two insulated electrodes, allowing potential difference establishment without direct connection between first and second electrodes.
2Reliability
If electrode structure is simplified, then manufacturing is easier, but brightness uniformity deteriorates
Solution Approach 1:
The electrode system is divided into three distinct electrodes (first, second, and third electrodes) with specific functions. The first and second electrodes are insulated from each other and directly contact sub-pixels, while the third electrode mediates their electrical connection. This segmented structure achieves brightness uniformity through distributed power supply while maintaining manageable manufacturing complexity through clear functional separation.
Data Source
AI summary
An electronic device is disclosed. The electronic device includes a substrate, a first electrode and a second electrode disposed on the substrate, a plurality of electronic units comprising a first electronic unit corresponding to a sub-pixel, a second electronic unit corresponding to another sub-pixel, wherein the first electrode and the second electrode are electrically connected to the first electronic unit and the second electronic unit, and the second electrode is electrically insulated from the first electrode.